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新(Xin)版(Ban)标(Biao)准(Zhun)规(Gui)范(Fan)解(Jie)读(Du):(?)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)连(Lian)续(Xu)长(Chang)下(Xia)坡(Po)设(She)计(Ji)方(Fang)法(Fa)与(Yu)指(Zhi)标(Biao)综(Zong)述(Shu)
2022-03-02 (?)来(Lai)源(Yuan):(?)西(Xi)安(An)交(Jiao)通(Tong)人(Ren) (?)

 (?) (?)近(Jin)年(Nian)来(Lai),(?)我(Wo)国(Guo)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)连(Lian)续(Xu)下(Xia)坡(Po)路(Lu)段(Duan)货(Huo)车(Che)失(Shi)控(Kong)事(Shi)故(Gu)多(Duo)发(Fa)、(?)频(Pin)发(Fa),(?)引(Yin)起(Qi)各(Ge)层(Ceng)面(Mian)的(De)高(Gao)度(Du)重(Zhong)视(Shi)。(?)在(Zai)新(Xin)版(Ban)标(Biao)准(Zhun)规(Gui)范(Fan)发(Fa)布(Bu)实(Shi)施(Shi)后(Hou),(?)修(Xiu)订(Ding)组(Zu)陆(Lu)续(Xu)收(Shou)到(Dao)一(Yi)些(Xie)关(Guan)于(Yu)长(Chang)下(Xia)坡(Po)设(She)计(Ji)方(Fang)法(Fa)与(Yu)指(Zhi)标(Biao)的(De)咨(Zi)询(Xun)函(Han)件(Jian),(?)内(Nei)容(Rong)主(Zhu)要(Yao)涉(She)及(Ji)以(Yi)下(Xia)方(Fang)面(Mian):(?)

 (?) (?)如(Ru)何(He)解(Jie)决(Jue)连(Lian)续(Xu)下(Xia)坡(Po)货(Huo)车(Che)安(An)全(Quan)问(Wen)题(Ti)?(?)问(Wen)题(Ti)与(Yu)纵(Zong)坡(Po)设(She)计(Ji)有(You)关(Guan)吗(Ma)?(?)

 (?) (?)下(Xia)坡(Po)中(Zhong)“缓(Huan)坡(Po)”行(Xing)驶(Shi),(?)驾(Jia)驶(Shi)员(Yuan)很(Hen)少(Shao)刹(Sha)车(Che)制(Zhi)动(Dong),(?)能(Neng)够(Gou)让(Rang)制(Zhi)动(Dong)毂(Gu)降(Jiang)温(Wen),(?)但(Dan)《(?)规(Gui)范(Fan)》(?)为(Wei)什(Shi)么(Me)没(Mei)有(You)设(She)置(Zhi)“缓(Huan)坡(Po)”方(Fang)法(Fa)和(He)指(Zhi)标(Biao)?(?)

 (?) (?)基(Ji)于(Yu)经(Jing)验(Yan)和(He)习(Xi)惯(Guan)做(Zuo)法(Fa),(?)长(Chang)下(Xia)坡(Po)采(Cai)用(Yong)“陡(Dou)缓(Huan)结(Jie)合(He)”的(De)设(She)计(Ji)方(Fang)法(Fa),(?)正(Zheng)确(Que)吗(Ma)?(?)

 (?) (?)连(Lian)续(Xu)长(Chang)下(Xia)坡(Po)设(She)计(Ji)中(Zhong),(?)应(Ying)该(Gai)如(Ru)何(He)进(Jin)行(Xing)纵(Zong)坡(Po)设(She)计(Ji)?(?)控(Kong)制(Zhi)什(Shi)么(Me)指(Zhi)标(Biao)?(?)

 (?) (?)《(?)规(Gui)范(Fan)》(?)新(Xin)增(Zeng)的(De)平(Ping)均(Jun)纵(Zong)坡(Po)指(Zhi)标(Biao),(?)比(Bi)经(Jing)验(Yan)值(Zhi)更(Geng)大(Da)、(?)更(Geng)宽(Kuan)松(Song),(?)安(An)全(Quan)吗(Ma)?(?)

 (?) (?)本(Ben)文(Wen)结(Jie)合(He)《(?)公(Gong)路(Lu)工(Gong)程(Cheng)技(Ji)术(Shu)标(Biao)准(Zhun)》(?)和(He)《(?)公(Gong)路(Lu)路(Lu)线(Xian)设(She)计(Ji)规(Gui)范(Fan)》(?)((?)以(Yi)下(Xia)简(Jian)称(Cheng)《(?)规(Gui)范(Fan)》(?))(?)修(Xiu)订(Ding)过(Guo)程(Cheng),(?)综(Zong)述(Shu)相(Xiang)关(Guan)调(Diao)查(Cha)研(Yan)究(Jiu)的(De)主(Zhu)要(Yao)结(Jie)论(Lun),(?)解(Jie)读(Du)《(?)规(Gui)范(Fan)》(?)相(Xiang)关(Guan)指(Zhi)标(Biao)来(Lai)源(Yuan)和(He)依(Yi)据(Ju),(?)回(Hui)答(Da)如(Ru)何(He)根(Gen)本(Ben)性(Xing)破(Po)解(Jie)长(Chang)下(Xia)坡(Po)安(An)全(Quan)问(Wen)题(Ti),(?)简(Jian)要(Yao)总(Zong)结(Jie)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)连(Lian)续(Xu)长(Chang)下(Xia)坡(Po)的(De)纵(Zong)坡(Po)设(She)计(Ji)方(Fang)法(Fa)和(He)指(Zhi)标(Biao)掌(Zhang)握(Wo)。(?)

 (?) (?)01

 (?) (?)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)长(Chang)下(Xia)坡(Po)安(An)全(Quan)问(Wen)题(Ti)与(Yu)纵(Zong)坡(Po)设(She)计(Ji)有(You)关(Guan)吗(Ma)?(?)如(Ru)何(He)破(Po)解(Jie)?(?)

 (?) (?)首(Shou)先(Xian),(?)专(Zhuan)题(Ti)通(Tong)过(Guo)调(Diao)研(Yan)发(Fa)现(Xian),(?)我(Wo)国(Guo)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)连(Lian)续(Xu)长(Chang)下(Xia)坡(Po)路(Lu)段(Duan)事(Shi)故(Gu)多(Duo)发(Fa)频(Pin)发(Fa)的(De)直(Zhi)接(Jie)原(Yuan)因(Yin)在(Zai)于(Yu)违(Wei)法(Fa)驾(Jia)驶(Shi)((?)超(Chao)载(Zai)、(?)超(Chao)限(Xian)、(?)超(Chao)速(Su))(?)和(He)违(Wei)章(Zhang)操(Cao)作(Zuo)((?)如(Ru):(?)未(Wei)按(An)规(Gui)定(Ding)使(Shi)用(Yong)辅(Fu)助(Zhu)制(Zhi)动(Dong)系(Xi)统(Tong))(?)、(?)车(Che)辆(Liang)非(Fei)法(Fa)改(Gai)装(Zhuang)等(Deng)方(Fang)面(Mian)。(?)

 (?) (?)其(Qi)次(Ci),(?)由(You)于(Yu)货(Huo)车(Che)大(Da)型(Xing)化(Hua)趋(Qu)势(Shi)((?)车(Che)辆(Liang)总(Zong)质(Zhi)量(Liang)增(Zeng)加(Jia)数(Shu)倍(Bei))(?),(?)导(Dao)致(Zhi)货(Huo)车(Che)整(Zheng)体(Ti)性(Xing)能(Neng)下(Xia)降(Jiang)((?)功(Gong)率(Lu)质(Zhi)量(Liang)比(Bi)下(Xia)降(Jiang)约(Yue)40%)(?),(?)引(Yin)起(Qi)车(Che)辆(Liang)连(Lian)续(Xu)下(Xia)坡(Po)中(Zhong)的(De)持(Chi)续(Xu)制(Zhi)动(Dong)能(Neng)力(Li)显(Xian)著(Zhu)降(Jiang)低(Di)。(?)而(?)持(Chi)续(Xu)制(Zhi)动(Dong)能(Neng)力(Li)和(He)装(Zhuang)配(Pei)((?)如(Ru)缓(Huan)速(Su)器(Qi))(?)才(Cai)是(Shi)保(Bao)证(Zheng)货(Huo)车(Che)连(Lian)续(Xu)下(Xia)坡(Po)安(An)全(Quan)性(Xing)的(De)关(Guan)键(Jian),(?)并(Bing)非(Fei)大(Da)家(Jia)习(Xi)惯(Guan)性(Xing)认(Ren)为(Wei)的(De)行(Xing)车(Che)制(Zhi)动(Dong)((?)器(Qi))(?)系(Xi)统(Tong)——制(Zhi)动(Dong)毂(Gu)。(?)与(Yu)国(Guo)外(Wai)同(Tong)类(Lei)货(Huo)车(Che)对(Dui)比(Bi)可(Ke)见(Jian),(?)我(Wo)国(Guo)货(Huo)车(Che)整(Zheng)体(Ti)性(Xing)能(Neng)((?)包(Bao)括(Kuo)持(Chi)续(Xu)制(Zhi)动(Dong)能(Neng)力(Li)与(Yu)装(Zhuang)备(Bei))(?),(?)与(Yu)世(Shi)界(Jie)发(Fa)展(Zhan)水(Shui)平(Ping)相(Xiang)差(Cha)一(Yi)个(Ge)代(Dai)级(Ji)以(Yi)上(Shang)。(?)下(Xia)图(Tu)为(Wei)我(Wo)国(Guo)不(Bu)同(Tong)时(Shi)期(Qi)公(Gong)路(Lu)货(Huo)运(Yun)代(Dai)表(Biao)车(Che)型(Xing)及(Ji)其(Qi)性(Xing)能(Neng)参(Can)数(Shu)对(Dui)比(Bi)表(Biao)。(?)

 (?) (?)图(Tu)片(Pian)

 (?) (?)再(Zai)有(You),(?)通(Tong)过(Guo)世(Shi)界(Jie)多(Duo)国(Guo)公(Gong)路(Lu)标(Biao)准(Zhun)对(Dui)比(Bi)研(Yan)究(Jiu),(?)我(Wo)国(Guo)高(Gao)速(Su)公(Gong)路(Lu)几(Ji)何(He)指(Zhi)标(Biao)与(Yu)美(Mei)国(Guo)等(Deng)其(Qi)他(Ta)国(Guo)家(Jia)基(Ji)本(Ben)一(Yi)致(Zhi),(?)且(Qie)在(Zai)实(Shi)际(Ji)工(Gong)程(Cheng)指(Zhi)标(Biao)((?)尤(You)其(Qi)是(Shi)纵(Zong)坡(Po)方(Fang)面(Mian))(?)采(Cai)用(Yong)、(?)掌(Zhang)握(Wo)方(Fang)面(Mian),(?)我(Wo)国(Guo)采(Cai)用(Yong)普(Pu)遍(Bian)更(Geng)高(Gao)、(?)控(Kong)制(Zhi)更(Geng)严(Yan),(?)即(Ji)我(Wo)国(Guo)纵(Zong)坡(Po)等(Deng)指(Zhi)标(Biao)偏(Pian)于(Yu)保(Bao)守(Shou)和(He)安(An)全(Quan)。(?)

 (?) (?)综(Zong)上(Shang),(?)我(Wo)国(Guo)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)长(Chang)下(Xia)坡(Po)安(An)全(Quan)问(Wen)题(Ti)直(Zhi)接(Jie)原(Yuan)因(Yin)主(Zhu)要(Yao)在(Zai)于(Yu)“人(Ren)”和(He)“车(Che)”的(De)因(Yin)素(Su)方(Fang)面(Mian)。(?)其(Qi)中(Zhong),(?)货(Huo)车(Che)大(Da)型(Xing)化(Hua)导(Dao)致(Zhi)整(Zheng)体(Ti)性(Xing)能(Neng)下(Xia)降(Jiang)、(?)持(Chi)续(Xu)制(Zhi)动(Dong)装(Zhuang)备(Bei)落(Luo)后(Hou)等(Deng)问(Wen)题(Ti),(?)才(Cai)是(Shi)长(Chang)下(Xia)坡(Po)安(An)全(Quan)问(Wen)题(Ti)的(De)深(Shen)层(Ceng)次(Ci)矛(Mao)盾(Dun)和(He)根(Gen)结(Jie)。(?)同(Tong)时(Shi),(?)调(Diao)查(Cha)试(Shi)验(Yan)揭(Jie)示(Shi),(?)在(Zai)人(Ren)、(?)车(Che)等(Deng)因(Yin)素(Su)合(He)法(Fa)、(?)合(He)规(Gui)前(Qian)提(Ti)下(Xia),(?)我(Wo)国(Guo)已(Yi)建(Jian)的(De)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)长(Chang)下(Xia)坡(Po)路(Lu)段(Duan)货(Huo)车(Che)均(Jun)可(Ke)以(Yi)安(An)全(Quan)通(Tong)行(Xing)。(?)

 (?) (?)因(Yin)此(Ci),(?)结(Jie)合(He)上(Shang)述(Shu)调(Diao)查(Cha)、(?)研(Yan)究(Jiu)结(Jie)论(Lun)和(He)认(Ren)识(Shi),(?)要(Yao)彻(Che)底(Di)解(Jie)决(Jue)货(Huo)车(Che)连(Lian)续(Xu)下(Xia)坡(Po)中(Zhong)的(De)安(An)全(Quan)问(Wen)题(Ti):(?)

 (?) (?)第(Di)一(Yi),(?)必(Bi)须(Xu)对(Dui)标(Biao)国(Guo)际(Ji)货(Huo)车(Che)性(Xing)能(Neng)标(Biao)准(Zhun),(?)提(Ti)升(Sheng)货(Huo)车(Che)总(Zong)体(Ti)性(Xing)能(Neng)和(He)装(Zhuang)配(Pei)条(Tiao)件(Jian)。(?)具(Ju)体(Ti)而(?)言(Yan),(?)要(Yao)提(Ti)升(Sheng)货(Huo)车(Che)功(Gong)率(Lu)质(Zhi)量(Liang)比(Bi)达(Da)到(Dao)8.3kN/t及(Ji)以(Yi)上(Shang)。(?)同(Tong)时(Shi),(?)升(Sheng)级(Ji)换(Huan)代(Dai)货(Huo)车(Che)采(Cai)用(Yong)持(Chi)续(Xu)制(Zhi)动(Dong)效(Xiao)能(Neng)更(Geng)高(Gao)、(?)更(Geng)稳(Wen)定(Ding)的(De)辅(Fu)助(Zhu)制(Zhi)动(Dong)系(Xi)统(Tong)(如(Ru):(?)缓(Huan)速(Su)器(Qi))(?)。(?)

 (?) (?)第(Di)二(?),(?)必(Bi)须(Xu)加(Jia)强(Qiang)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)长(Chang)下(Xia)坡(Po)路(Lu)段(Duan)的(De)通(Tong)行(Xing)管(Guan)理(Li)和(He)交(Jiao)通(Tong)组(Zu)织(Zhi),(?)杜(Du)绝(Jue)各(Ge)类(Lei)人(Ren)、(?)车(Che)违(Wei)法(Fa)、(?)违(Wei)规(Gui)行(Xing)为(Wei),(?)严(Yan)格(Ge)控(Kong)制(Zhi)货(Huo)车(Che)长(Chang)下(Xia)坡(Po)。(?)

 (?) (?)就(Jiu)此(Ci),(?)《(?)规(Gui)范(Fan)》(?)修(Xiu)订(Ding)阶(Jie)段(Duan)专(Zhuan)门(Men)向(Xiang)交(Jiao)通(Tong)运(Yun)输(Shu)部(Bu)提(Ti)交(Jiao)了(Liao)相(Xiang)关(Guan)专(Zhuan)题(Ti)研(Yan)究(Jiu)报(Bao)告(Gao)和(He)对(Dui)货(Huo)车(Che)生(Sheng)产(Chan)制(Zhi)造(Zao)相(Xiang)关(Guan)国(Guo)家(Jia)政(Zheng)策(Ce)性(Xing)的(De)意(Yi)见(Jian)和(He)建(Jian)议(Yi)。(?)

 (?) (?)02

 (?) (?)长(Chang)下(Xia)坡(Po)设(She)计(Ji)中(Zhong),(?)需(Xu)要(Yao)考(Kao)虑(Lu)“缓(Huan)坡(Po)”吗(Ma)?(?)

 (?) (?)公(Gong)路(Lu)行(Xing)业(Ye)《(?)规(Gui)范(Fan)》(?)中(Zhong)的(De)“缓(Huan)坡(Po)”一(Yi)词(Ci)和(He)概(Gai)念(Nian),(?)原(Yuan)本(Ben)是(Shi)从(Cong)上(Shang)坡(Po)方(Fang)向(Xiang)角(Jiao)度(Du)提(Ti)出(Chu)的(De)。(?)上(Shang)坡(Po)设(She)置(Zhi)缓(Huan)坡(Po)的(De)目(Mu)的(De)——当(Dang)货(Huo)车(Che)在(Zai)连(Lian)续(Xu)爬(Pa)坡(Po)过(Guo)程(Cheng)中(Zhong)速(Su)度(Du)不(Bu)断(Duan)折(Zhe)减(Jian)降(Jiang)低(Di),(?)导(Dao)致(Zhi)路(Lu)段(Duan)通(Tong)行(Xing)能(Neng)力(Li)显(Xian)著(Zhu)下(Xia)降(Jiang)时(Shi),(?)通(Tong)过(Guo)有(You)意(Yi)识(Shi)设(She)计(Ji)“缓(Huan)坡(Po)”((?)仍(Reng)然(Ran)是(Shi)上(Shang)坡(Po),(?)只(Zhi)是(Shi)坡(Po)度(Du)较(Jiao)小(Xiao))(?),(?)为(Wei)车(Che)辆(Liang)创(Chuang)造(Zao)一(Yi)个(Ge)短(Duan)距(Ju)离(Li)提(Ti)速(Su)的(De)条(Tiao)件(Jian)。(?)根(Gen)据(Ju)汽(Qi)车(Che)连(Lian)续(Xu)爬(Pa)坡(Po)过(Guo)程(Cheng)中(Zhong)的(De)速(Su)度(Du)折(Zhe)减(Jian)表(Biao)现(Xian),(?)上(Shang)坡(Po)方(Fang)向(Xiang)“缓(Huan)坡(Po)”的(De)坡(Po)度(Du)一(Yi)般(Ban)控(Kong)制(Zhi)在(Zai)小(Xiao)于(Yu)3%。(?)

 (?) (?)而(?)众(Zhong)所(Suo)周(Zhou)知(Zhi),(?)货(Huo)车(Che)在(Zai)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)连(Lian)续(Xu)下(Xia)坡(Po)过(Guo)程(Cheng)中(Zhong),(?)如(Ru)果(Guo)驾(Jia)驶(Shi)员(Yuan)连(Lian)续(Xu)踩(Cai)刹(Sha)车(Che)制(Zhi)动(Dong),(?)就(Jiu)会(Hui)导(Dao)致(Zhi)制(Zhi)动(Dong)毂(Gu)温(Wen)度(Du)过(Guo)高(Gao),(?)逐(Zhu)渐(Jian)失(Shi)去(Qu)制(Zhi)动(Dong)消(Xiao)能(Neng),(?)最(Zui)终(Zhong)导(Dao)致(Zhi)车(Che)辆(Liang)失(Shi)控(Kong)。(?)这(Zhe)也(Ye)是(Shi)我(Wo)国(Guo)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)连(Lian)续(Xu)长(Chang)下(Xia)坡(Po)路(Lu)段(Duan)货(Huo)车(Che)失(Shi)控(Kong)的(De)主(Zhu)要(Yao)原(Yuan)因(Yin)和(He)表(Biao)现(Xian)。(?)于(Yu)是(Shi),(?)有(You)人(Ren)认(Ren)为(Wei),(?)如(Ru)果(Guo)在(Zai)长(Chang)下(Xia)坡(Po)路(Lu)段(Duan)中(Zhong)设(She)置(Zhi)有(You)“缓(Huan)坡(Po)”,(?)车(Che)辆(Liang)在(Zai)缓(Huan)坡(Po)路(Lu)段(Duan)行(Xing)驶(Shi)时(Shi),(?)驾(Jia)驶(Shi)员(Yuan)很(Hen)少(Shao)踩(Cai)刹(Sha)车(Che),(?)这(Zhe)样(Yang)有(You)助(Zhu)于(Yu)制(Zhi)动(Dong)毂(Gu)自(Zi)然(Ran)降(Jiang)温(Wen),(?)恢(Hui)复(Fu)其(Qi)应(Ying)有(You)的(De)制(Zhi)动(Dong)消(Xiao)能(Neng)。(?)

 (?) (?)显(Xian)然(Ran),(?)此(Ci)“缓(Huan)坡(Po)”,(?)非(Fei)彼(Bi)“缓(Huan)坡(Po)”,(?)它(Ta)们(Men)是(Shi)完(Wan)全(Quan)不(Bu)同(Tong)的(De)概(Gai)念(Nian),(?)目(Mu)的(De)和(He)性(Xing)质(Zhi)也(Ye)截(Jie)然(Ran)不(Bu)同(Tong)。(?)因(Yin)此(Ci),(?)在(Zai)各(Ge)类(Lei)公(Gong)路(Lu)项(Xiang)目(Mu)设(She)计(Ji)中(Zhong),(?)不(Bu)能(Neng)混(Hun)淆(Xiao)“缓(Huan)坡(Po)”概(Gai)念(Nian),(?)更(Geng)不(Bu)能(Neng)把(Ba)上(Shang)坡(Po)方(Fang)向(Xiang)的(De)“缓(Huan)坡(Po)”设(She)计(Ji)方(Fang)法(Fa)和(He)思(Si)路(Lu),(?)照(Zhao)搬(Ban)到(Dao)下(Xia)坡(Po)方(Fang)向(Xiang)纵(Zong)坡(Po)设(She)计(Ji)当(Dang)中(Zhong)。(?)

 (?) (?)03

 (?) (?)为(Wei)什(Shi)么(Me)《(?)规(Gui)范(Fan)》(?)没(Mei)有(You)给(Gei)出(Chu)长(Chang)下(Xia)坡(Po)中(Zhong)“缓(Huan)坡(Po)”的(De)设(She)计(Ji)指(Zhi)标(Biao)?(?)

 (?) (?)准(Zhun)确(Que)地(Di)说(Shuo),(?)新(Xin)版(Ban)《(?)规(Gui)范(Fan)》(?)((?)2017版(Ban))(?)确(Que)实(Shi)没(Mei)有(You)给(Gei)出(Chu)长(Chang)下(Xia)坡(Po)中(Zhong)“缓(Huan)坡(Po)”的(De)设(She)计(Ji)指(Zhi)标(Biao),(?)但(Dan)并(Bing)非(Fei)因(Yin)为(Wei)《(?)规(Gui)范(Fan)》(?)缺(Que)乏(Fa)调(Diao)查(Cha)、(?)研(Yan)究(Jiu),(?)而(?)是(Shi)因(Yin)为(Wei)通(Tong)过(Guo)专(Zhuan)题(Ti)试(Shi)验(Yan)、(?)研(Yan)究(Jiu)发(Fa)现(Xian),(?)在(Zai)连(Lian)续(Xu)长(Chang)下(Xia)坡(Po)过(Guo)程(Cheng)中(Zhong)设(She)置(Zhi)“缓(Huan)坡(Po)”并(Bing)没(Mei)有(You)实(Shi)际(Ji)意(Yi)义(Yi),(?)也(Ye)不(Bu)具(Ju)有(You)工(Gong)程(Cheng)操(Cao)作(Zuo)性(Xing),(?)因(Yin)此(Ci)《(?)规(Gui)范(Fan)》(?)不(Bu)推(Tui)荐(Jian)在(Zai)长(Chang)下(Xia)坡(Po)设(She)计(Ji)中(Zhong)专(Zhuan)门(Men)、(?)有(You)意(Yi)识(Shi)设(She)计(Ji)“缓(Huan)坡(Po)”。(?)

 (?) (?)根(Gen)据(Ju)汽(Qi)车(Che)下(Xia)坡(Po)运(Yun)动(Dong)方(Fang)程(Cheng)、(?)制(Zhi)动(Dong)原(Yuan)理(Li)和(He)货(Huo)车(Che)制(Zhi)动(Dong)毂(Gu)温(Wen)度(Du)变(Bian)化(Hua)模(Mo)型(Xing),(?)汽(Qi)车(Che)下(Xia)坡(Po)行(Xing)驶(Shi)过(Guo)程(Cheng)符(Fu)合(He)能(Neng)量(Liang)守(Shou)恒(Heng)定(Ding)律(Lu),(?)即(Ji)该(Gai)过(Guo)程(Cheng)近(Jin)似(Si)于(Yu)一(Yi)个(Ge)机(Ji)械(Xie)势(Shi)能(Neng)转(Zhuan)化(Hua)为(Wei)车(Che)辆(Liang)动(Dong)能(Neng)和(He)热(Re)能(Neng)((?)制(Zhi)动(Dong)毂(Gu)温(Wen)度(Du))(?)的(De)过(Guo)程(Cheng)。(?)例(Li)如(Ru),(?)在(Zai)某(Mou)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)起(Qi)终(Zhong)点(Dian)位(Wei)置(Zhi)和(He)相(Xiang)对(Dui)高(Gao)差(Cha)基(Ji)本(Ben)确(Que)定(Ding)的(De)前(Qian)提(Ti)下(Xia),(?)路(Lu)线(Xian)设(She)计(Ji)采(Cai)用(Yong)“平(Ping)均(Jun)坡(Po)度(Du)4% ((?)长(Chang)度(Du)5km)(?)”的(De)方(Fang)案(An)与(Yu)采(Cai)用(Yong)“平(Ping)均(Jun)坡(Po)度(Du)3%((?)长(Chang)度(Du)6km,(?)增(Zeng)设(She)缓(Huan)坡(Po))(?)”的(De)方(Fang)案(An),(?)对(Dui)制(Zhi)动(Dong)毂(Gu)温(Wen)度(Du)变(Bian)化(Hua)影(Ying)响(Xiang)不(Bu)大(Da)。(?)即(Ji)在(Zai)最(Zui)大(Da)纵(Zong)坡(Po)范(Fan)围(Wei)内(Nei),(?)“陡(Dou)而(?)短(Duan)”的(De)纵(Zong)坡(Po)组(Zu)合(He)等(Deng)同(Tong)于(Yu)“长(Chang)而(?)缓(Huan)”纵(Zong)坡(Po)组(Zu)合(He)。(?)

 (?) (?)另(Ling)外(Wai),(?)制(Zhi)动(Dong)毂(Gu)一(Yi)般(Ban)为(Wei)灰(Hui)铸(Zhu)铁(Tie)材(Cai)质(Zhi),(?)其(Qi)自(Zi)然(Ran)降(Jiang)温(Wen)((?)即(Ji)在(Zai)行(Xing)驶(Shi)过(Guo)程(Cheng)中(Zhong),(?)自(Zi)然(Ran)降(Jiang)温(Wen))(?)的(De)速(Su)度(Du)很(Hen)慢(Man)。(?)一(Yi)组(Zu)试(Shi)验(Yan)显(Xian)示(Shi),(?)在(Zai)60km/h速(Su)度(Du)时(Shi),(?)制(Zhi)动(Dong)毂(Gu)自(Zi)然(Ran)降(Jiang)温(Wen)10度(Du),(?)就(Jiu)需(Xu)要(Yao)约(Yue)10分(Fen)钟(Zhong)以(Yi)上(Shang)时(Shi)间(Jian),(?)而(?)此(Ci)时(Shi)汽(Qi)车(Che)行(Xing)驶(Shi)距(Ju)离(Li)至(Zhi)少(Shao)10公(Gong)里(Li)。(?)在(Zai)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)设(She)计(Ji)中(Zhong),(?)设(She)置(Zhi)几(Ji)公(Gong)里(Li)以(Yi)上(Shang)的(De)缓(Huan)坡(Po)显(Xian)然(Ran)是(Shi)不(Bu)具(Ju)备(Bei)操(Cao)作(Zuo)性(Xing)。(?)

 (?) (?)因(Yin)此(Ci),(?)新(Xin)版(Ban)《(?)规(Gui)范(Fan)》(?)((?)2017版(Ban))(?)修(Xiu)订(Ding)中(Zhong)明(Ming)确(Que),(?)连(Lian)续(Xu)长(Chang)下(Xia)坡(Po)路(Lu)段(Duan)设(She)计(Ji)中(Zhong),(?)不(Bu)推(Tui)荐(Jian)有(You)意(Yi)识(Shi)设(She)置(Zhi)“缓(Huan)坡(Po)”,(?)即(Ji)不(Bu)推(Tui)荐(Jian)“陡(Dou)缓(Huan)结(Jie)合(He)”的(De)设(She)计(Ji)方(Fang)法(Fa)((?)从(Cong)上(Shang)坡(Po)需(Xu)要(Yao)设(She)置(Zhi)的(De)缓(Huan)坡(Po)除(Chu)外(Wai))(?)。(?)而(?)且(Qie),(?)法(Fa)国(Guo)等(Deng)欧(Ou)洲(Zhou)公(Gong)路(Lu)设(She)计(Ji)规(Gui)范(Fan)明(Ming)文(Wen)禁(Jin)止(Zhi)在(Zai)长(Chang)下(Xia)坡(Po)中(Zhong)间(Jian)设(She)置(Zhi)缓(Huan)坡(Po)的(De)做(Zuo)法(Fa),(?)不(Bu)仅(Jin)因(Yin)为(Wei)设(She)置(Zhi)“缓(Huan)坡(Po)”对(Dui)制(Zhi)动(Dong)毂(Gu)温(Wen)度(Du)变(Bian)化(Hua)无(Wu)实(Shi)际(Ji)意(Yi)义(Yi),(?)反(Fan)倒(Dao)使(Shi)得(De)坡(Po)度(Du)更(Geng)长(Chang),(?)而(?)且(Qie)还(Huan)容(Rong)易(Yi)给(Gei)驾(Jia)驶(Shi)员(Yuan)造(Zao)成(Cheng)连(Lian)续(Xu)下(Xia)坡(Po)结(Jie)束(Shu)、(?)放(Fang)松(Song)警(Jing)惕(Ti)的(De)错(Cuo)觉(Jue)。(?)

 (?) (?)04

 (?) (?)控(Kong)制(Zhi)长(Chang)下(Xia)坡(Po)设(She)计(Ji)的(De)指(Zhi)标(Biao)是(Shi)什(Shi)么(Me)?(?)有(You)什(Shi)么(Me)依(Yi)据(Ju)?(?)

 (?) (?)尽(Jin)管(Guan),(?)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)长(Chang)下(Xia)坡(Po)安(An)全(Quan)问(Wen)题(Ti)并(Bing)不(Bu)在(Zai)于(Yu)高(Gao)速(Su)公(Gong)路(Lu)纵(Zong)坡(Po)指(Zhi)标(Biao)方(Fang)面(Mian),(?)也(Ye)不(Bu)在(Zai)于(Yu)纵(Zong)坡(Po)如(Ru)何(He)组(Zu)合(He)设(She)计(Ji)方(Fang)面(Mian),(?)但(Dan)本(Ben)着(Zhuo)对(Dui)国(Guo)家(Jia)、(?)行(Xing)业(Ye)和(He)人(Ren)民(Min)群(Qun)众(Zhong)负(Fu)责(Ze)任(Ren)的(De)态(Tai)度(Du),(?)从(Cong)我(Wo)国(Guo)当(Dang)前(Qian)货(Huo)运(Yun)主(Zhu)导(Dao)车(Che)型(Xing)的(De)性(Xing)能(Neng)条(Tiao)件(Jian)和(He)升(Sheng)级(Ji)换(Huan)代(Dai)周(Zhou)期(Qi)等(Deng)实(Shi)际(Ji)情(Qing)况(Kuang)出(Chu)发(Fa),(?)《(?)规(Gui)范(Fan)》(?)配(Pei)套(Tao)专(Zhuan)题(Ti)通(Tong)过(Guo)充(Chong)分(Fen)试(Shi)验(Yan)、(?)研(Yan)究(Jiu)和(He)论(Lun)证(Zheng),(?)选(Xuan)择(Ze)以(Yi)发(Fa)动(Dong)机(Ji)辅(Fu)助(Zhu)制(Zhi)动(Dong)((?)即(Ji)排(Pai)挡(Dang)制(Zhi)动(Dong))(?)模(Mo)式(Shi)为(Wei)基(Ji)本(Ben)工(Gong)况(Kuang)条(Tiao)件(Jian),(?)通(Tong)过(Guo)试(Shi)验(Yan)研(Yan)究(Jiu)建(Jian)立(Li)了(Liao)货(Huo)运(Yun)主(Zhu)导(Dao)车(Che)型(Xing)——六(Liu)轴(Zhou)铰(Jiao)接(Jie)列(Lie)车(Che)的(De)制(Zhi)动(Dong)温(Wen)度(Du)控(Kong)制(Zhi)模(Mo)型(Xing);(?)以(Yi)制(Zhi)动(Dong)毂(Gu)温(Wen)度(Du)不(Bu)超(Chao)高(Gao)200度(Du)为(Wei)安(An)全(Quan)条(Tiao)件(Jian),(?)研(Yan)究(Jiu)提(Ti)出(Chu)了(Liao)《(?)规(Gui)范(Fan)》(?)表(Biao)8.3.5“连(Lian)续(Xu)长(Chang)、(?)陡(Dou)下(Xia)坡(Po)的(De)平(Ping)均(Jun)坡(Po)度(Du)与(Yu)连(Lian)续(Xu)坡(Po)长(Chang)”,(?)作(Zuo)为(Wei)现(Xian)阶(Jie)段(Duan)指(Zhi)导(Dao)高(Gao)速(Su)和(He)一(Yi)级(Ji)公(Gong)路(Lu)连(Lian)续(Xu)性(Xing)长(Chang)下(Xia)坡(Po)的(De)设(She)计(Ji)与(Yu)评(Ping)价(Jia)性(Xing)的(De)推(Tui)荐(Jian)性(Xing)指(Zhi)标(Biao)。(?)

 (?) (?)需(Xu)要(Yao)特(Te)别(Bie)关(Guan)注(Zhu)的(De)是(Shi),(?)《(?)规(Gui)范(Fan)》(?)表(Biao)8.3.5基(Ji)于(Yu)的(De)“发(Fa)动(Dong)机(Ji)辅(Fu)助(Zhu)制(Zhi)动(Dong)模(Mo)式(Shi)”,(?)与(Yu)排(Pai)气(Qi)辅(Fu)助(Zhu)制(Zhi)动(Dong)模(Mo)式(Shi)比(Bi)较(Jiao),(?)相(Xiang)对(Dui)更(Geng)安(An)全(Quan)、(?)更(Geng)保(Bao)守(Shou)。(?)因(Yin)为(Wei)采(Cai)用(Yong)排(Pai)气(Qi)制(Zhi)动(Dong)模(Mo)式(Shi)下(Xia),(?)得(De)出(Chu)的(De)平(Ping)均(Jun)纵(Zong)坡(Po)坡(Po)度(Du)和(He)坡(Po)长(Chang)将(Jiang)会(Hui)更(Geng)大(Da)、(?)更(Geng)长(Chang)。(?)因(Yin)此(Ci),(?)在(Zai)我(Wo)国(Guo)汽(Qi)车(Che)制(Zhi)造(Zao)标(Biao)准(Zhun)强(Qiang)制(Zhi)性(Xing)要(Yao)求(Qiu)所(Suo)有(You)车(Che)辆(Liang)出(Chu)厂(Chang)必(Bi)须(Xu)装(Zhuang)配(Pei)辅(Fu)助(Zhu)制(Zhi)动(Dong)系(Xi)统(Tong)((?)国(Guo)内(Nei)普(Pu)遍(Bian)装(Zhuang)配(Pei)的(De)是(Shi)“排(Pai)气(Qi)制(Zhi)动(Dong)系(Xi)统(Tong)”)(?)前(Qian)提(Ti)下(Xia),(?)表(Biao)8.3.5的(De)指(Zhi)标(Biao)已(Yi)经(Jing)是(Shi)相(Xiang)对(Dui)保(Bao)守(Shou)、(?)偏(Pian)于(Yu)安(An)全(Quan)的(De)指(Zhi)标(Biao)了(Liao)。(?)

 (?) (?)这(Zhe)样(Yang),(?)单(Dan)从(Cong)下(Xia)坡(Po)方(Fang)向(Xiang)考(Kao)虑(Lu),(?)新(Xin)版(Ban)《(?)规(Gui)范(Fan)》(?)中(Zhong)指(Zhi)导(Dao)和(He)控(Kong)制(Zhi)纵(Zong)坡(Po)设(She)计(Ji)的(De)指(Zhi)标(Biao)主(Zhu)要(Yao)有(You)以(Yi)下(Xia)两(Liang)个(Ge)部(Bu)分(Fen):(?)

 (?) (?)1) 最(Zui)大(Da)纵(Zong)坡(Po)坡(Po)度(Du)

 (?) (?)即(Ji)《(?)规(Gui)范(Fan)》(?)第(Di)8.2.1条(Tiao),(?)各(Ge)级(Ji)公(Gong)路(Lu)的(De)最(Zui)大(Da)纵(Zong)坡(Po)应(Ying)不(Bu)大(Da)于(Yu)表(Biao)8.2.1((?)最(Zui)大(Da)纵(Zong)坡(Po))(?);(?)

 (?) (?)图(Tu)片(Pian)

 (?) (?)▲(?)《(?)规(Gui)范(Fan)》(?)表(Biao)8.2.1

 (?) (?)2) 连(Lian)续(Xu)长(Chang)、(?)陡(Dou)下(Xia)坡(Po)的(De)平(Ping)均(Jun)纵(Zong)坡(Po)((?)检(Jian)验(Yan)性(Xing)指(Zhi)标(Biao))(?)

 (?) (?)即(Ji)《(?)规(Gui)范(Fan)》(?)第(Di)8.3.5条(Tiao),(?)高(Gao)速(Su)和(He)一(Yi)级(Ji)公(Gong)路(Lu)连(Lian)续(Xu)长(Chang)、(?)陡(Dou)下(Xia)坡(Po)路(Lu)段(Duan)的(De)平(Ping)均(Jun)坡(Po)度(Du)与(Yu)连(Lian)续(Xu)坡(Po)长(Chang)不(Bu)宜(Yi)超(Chao)过(Guo)表(Biao)8.3.5((?)平(Ping)均(Jun)纵(Zong)坡(Po)坡(Po)度(Du)与(Yu)连(Lian)续(Xu)坡(Po)长(Chang))(?)的(De)规(Gui)定(Ding);(?)超(Chao)过(Guo)时(Shi),(?)应(Ying)进(Jin)行(Xing)交(Jiao)通(Tong)安(An)全(Quan)性(Xing)评(Ping)价(Jia),(?)提(Ti)出(Chu)路(Lu)段(Duan)速(Su)度(Du)控(Kong)制(Zhi)和(He)通(Tong)行(Xing)管(Guan)理(Li)方(Fang)案(An),(?)完(Wan)善(Shan)交(Jiao)通(Tong)工(Gong)程(Cheng)和(He)安(An)全(Quan)设(She)施(Shi),(?)并(Bing)论(Lun)证(Zheng)增(Zeng)设(She)货(Huo)车(Che)强(Qiang)制(Zhi)停(Ting)车(Che)区(Qu)。(?)

 (?) (?)图(Tu)片(Pian)

 (?) (?)▲(?)《(?)规(Gui)范(Fan)》(?)表(Biao)8.3.5

 (?) (?)05

 (?) (?)连(Lian)续(Xu)长(Chang)下(Xia)坡(Po)如(Ru)何(He)进(Jin)行(Xing)纵(Zong)坡(Po)设(She)计(Ji)?(?)((?)即(Ji)设(She)计(Ji)方(Fang)法(Fa))(?)

 (?) (?)由(You)于(Yu)公(Gong)路(Lu)行(Xing)业(Ye)标(Biao)准(Zhun)规(Gui)范(Fan)的(De)条(Tiao)文(Wen)编(Bian)制(Zhi)的(De)体(Ti)例(Li)和(He)形(Xing)式(Shi)要(Yao)求(Qiu),(?)《(?)规(Gui)范(Fan)》(?)条(Tiao)文(Wen)内(Nei)容(Rong)不(Bu)能(Neng)像(Xiang)设(She)计(Ji)手(Shou)册(Ce)或(Huo)教(Jiao)科(Ke)书(Shu)那(Na)样(Yang),(?)完(Wan)整(Zheng)地(Di)讲(Jiang)述(Shu)工(Gong)程(Cheng)设(She)计(Ji)方(Fang)法(Fa)和(He)流(Liu)程(Cheng)。(?)这(Zhe)里(Li),(?)笔(Bi)者(Zhe)结(Jie)合(He)相(Xiang)关(Guan)工(Gong)程(Cheng)实(Shi)践(Jian),(?)总(Zong)结(Jie)一(Yi)下(Xia)新(Xin)版(Ban)《(?)规(Gui)范(Fan)》(?)((?)2017版(Ban))(?)推(Tui)荐(Jian)的(De)“山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)纵(Zong)坡(Po)设(She)计(Ji)方(Fang)法(Fa)和(He)流(Liu)程(Cheng)”。(?)

 (?) (?)1) 首(Shou)先(Xian)需(Xu)要(Yao)明(Ming)确(Que),(?)受(Shou)到(Dao)货(Huo)车(Che)动(Dong)力(Li)和(He)安(An)全(Quan)性(Xing)能(Neng)条(Tiao)件(Jian)限(Xian)制(Zhi),(?)在(Zai)连(Lian)续(Xu)上(Shang)坡(Po)方(Fang)向(Xiang)高(Gao)速(Su)公(Gong)路(Lu)纵(Zong)坡(Po)设(She)计(Ji)的(De)重(Zhong)点(Dian)在(Zai)于(Yu)保(Bao)证(Zheng)路(Lu)段(Duan)通(Tong)行(Xing)能(Neng)力(Li),(?)而(?)下(Xia)坡(Po)重(Zhong)点(Dian)在(Zai)于(Yu)保(Bao)障(Zhang)连(Lian)续(Xu)下(Xia)坡(Po)的(De)通(Tong)行(Xing)安(An)全(Quan)性(Xing),(?)因(Yin)此(Ci),(?)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)选(Xuan)线(Xian)、(?)方(Fang)案(An)优(You)化(Hua)、(?)纵(Zong)坡(Po)设(She)计(Ji),(?)应(Ying)区(Qu)分(Fen)整(Zheng)体(Ti)式(Shi)路(Lu)基(Ji)、(?)分(Fen)离(Li)式(Shi)路(Lu)基(Ji),(?)区(Qu)分(Fen)上(Shang)坡(Po)方(Fang)向(Xiang)和(He)下(Xia)坡(Po)方(Fang)向(Xiang)等(Deng)情(Qing)况(Kuang)。(?)

 (?) (?)2) 对(Dui)采(Cai)用(Yong)整(Zheng)体(Ti)式(Shi)路(Lu)基(Ji)断(Duan)面(Mian)的(De)路(Lu)段(Duan),(?)主(Zhu)体(Ti)先(Xian)依(Yi)照(Zhao)《(?)规(Gui)范(Fan)》(?)对(Dui)上(Shang)坡(Po)方(Fang)向(Xiang)的(De)指(Zhi)标(Biao)和(He)要(Yao)求(Qiu)进(Jin)行(Xing)纵(Zong)坡(Po)设(She)计(Ji)((?)包(Bao)括(Kuo)采(Cai)用(Yong)缓(Huan)坡(Po))(?),(?)因(Yin)为(Wei)与(Yu)下(Xia)坡(Po)方(Fang)向(Xiang)的(De)指(Zhi)标(Biao)限(Xian)制(Zhi)比(Bi)较(Jiao),(?)上(Shang)坡(Po)方(Fang)向(Xiang)指(Zhi)标(Biao)受(Shou)限(Xian)更(Geng)多(Duo);(?)然(Ran)后(Hou),(?)再(Zai)对(Dui)照(Zhao)《(?)规(Gui)范(Fan)》(?)第(Di)8.3.5条(Tiao)从(Cong)下(Xia)坡(Po)方(Fang)向(Xiang)对(Dui)纵(Zong)坡(Po)设(She)计(Ji)进(Jin)行(Xing)检(Jian)验(Yan)、(?)评(Ping)价(Jia)。(?)

 (?) (?)3) 对(Dui)采(Cai)用(Yong)分(Fen)离(Li)式(Shi)路(Lu)基(Ji)断(Duan)面(Mian)的(De)路(Lu)段(Duan):(?)

 (?) (?)●(?) 上(Shang)坡(Po)方(Fang)向(Xiang),(?)完(Wan)全(Quan)按(An)照(Zhao)《(?)规(Gui)范(Fan)》(?)对(Dui)上(Shang)坡(Po)方(Fang)向(Xiang)的(De)指(Zhi)标(Biao)和(He)要(Yao)求(Qiu)进(Jin)行(Xing)纵(Zong)坡(Po)设(She)计(Ji),(?)包(Bao)括(Kuo)在(Zai)连(Lian)续(Xu)上(Shang)坡(Po)中(Zhong)间(Jian),(?)结(Jie)合(He)地(Di)形(Xing)条(Tiao)件(Jian)合(He)理(Li)设(She)置(Zhi)缓(Huan)坡(Po);(?)当(Dang)路(Lu)段(Duan)运(Yun)行(Xing)速(Su)度(Du)、(?)通(Tong)行(Xing)能(Neng)力(Li)明(Ming)显(Xian)降(Jiang)低(Di)时(Shi),(?)论(Lun)证(Zheng)设(She)置(Zhi)爬(Pa)坡(Po)车(Che)道(Dao)等(Deng)措(Cuo)施(Shi);(?)

 (?) (?)●(?) 下(Xia)坡(Po)方(Fang)向(Xiang),(?)则(Ze)以(Yi)最(Zui)大(Da)纵(Zong)坡(Po)指(Zhi)标(Biao)((?)表(Biao)8.2.1)(?)为(Wei)控(Kong)制(Zhi),(?)以(Yi)连(Lian)续(Xu)长(Chang)、(?)陡(Dou)下(Xia)坡(Po)检(Jian)验(Yan)指(Zhi)标(Biao)((?)表(Biao)8.3.5)(?)为(Wei)参(Can)考(Kao),(?)结(Jie)合(He)沿(Yan)线(Xian)地(Di)形(Xing)、(?)地(Di)质(Zhi)等(Deng)起(Qi)伏(Fu)、(?)变(Bian)化(Hua)条(Tiao)件(Jian),(?)灵(Ling)活(Huo)进(Jin)行(Xing)纵(Zong)坡(Po)设(She)计(Ji)。(?)((?)不(Bu)需(Xu)要(Yao)专(Zhuan)门(Men)或(Huo)有(You)意(Yi)识(Shi)设(She)置(Zhi)缓(Huan)坡(Po))(?)

 (?) (?)4) 当(Dang)初(Chu)步(Bu)方(Fang)案(An)的(De)平(Ping)均(Jun)纵(Zong)坡(Po)与(Yu)坡(Po)长(Chang)小(Xiao)于(Yu)表(Biao)8.3.5时(Shi),(?)纵(Zong)坡(Po)深(Shen)化(Hua)设(She)计(Ji)主(Zhu)要(Yao)考(Kao)虑(Lu)顺(Shun)应(Ying)地(Di)形(Xing)起(Qi)伏(Fu)变(Bian)化(Hua)、(?)填(Tian)挖(Wa)平(Ping)衡(Heng)、(?)工(Gong)程(Cheng)量(Liang)最(Zui)小(Xiao)等(Deng)因(Yin)素(Su),(?)包(Bao)括(Kuo)保(Bao)证(Zheng)上(Shang)坡(Po)方(Fang)向(Xiang)的(De)通(Tong)行(Xing)能(Neng)力(Li)和(He)服(Fu)务(Wu)水(Shui)平(Ping)((?)上(Shang)坡(Po)方(Fang)向(Xiang))(?)。(?)

 (?) (?)5) 当(Dang)初(Chu)步(Bu)方(Fang)案(An)的(De)平(Ping)均(Jun)纵(Zong)坡(Po)与(Yu)坡(Po)长(Chang)大(Da)于(Yu)表(Biao)8.3.5时(Shi):(?)

 (?) (?)●(?) 或(Huo)者(Zhe),(?)通(Tong)过(Guo)重(Zhong)新(Xin)选(Xuan)线(Xian)或(Huo)采(Cai)用(Yong)隧(Sui)道(Dao)方(Fang)案(An)降(Jiang)低(Di)路(Lu)段(Duan)起(Qi)终(Zhong)点(Dian)的(De)相(Xiang)对(Dui)高(Gao)差(Cha),(?)使(Shi)得(De)新(Xin)的(De)路(Lu)线(Xian)方(Fang)案(An)的(De)平(Ping)均(Jun)纵(Zong)坡(Po)与(Yu)坡(Po)长(Chang)小(Xiao)于(Yu)表(Biao)8.3.5。(?)

 (?) (?)●(?) 或(Huo)者(Zhe),(?)在(Zai)起(Qi)终(Zhong)点(Dian)相(Xiang)对(Dui)高(Gao)差(Cha)条(Tiao)件(Jian)比(Bi)较(Jiao)固(Gu)定(Ding)时(Shi),(?)在(Zai)路(Lu)段(Duan)中(Zhong)间(Jian)位(Wei)置(Zhi)合(He)理(Li)设(She)置(Zhi)货(Huo)车(Che)强(Qiang)制(Zhi)停(Ting)车(Che)区(Qu),(?)即(Ji)通(Tong)过(Guo)强(Qiang)制(Zhi)停(Ting)车(Che)区(Qu)将(Jiang)原(Yuan)连(Lian)续(Xu)长(Chang)下(Xia)坡(Po)路(Lu)段(Duan)分(Fen)为(Wei)两(Liang)个(Ge)((?)或(Huo)以(Yi)上(Shang)的(De))(?)连(Lian)续(Xu)下(Xia)坡(Po)路(Lu)段(Duan);(?)同(Tong)时(Shi),(?)通(Tong)过(Guo)交(Jiao)通(Tong)安(An)全(Quan)性(Xing)评(Ping)价(Jia),(?)明(Ming)确(Que)路(Lu)段(Duan)速(Su)度(Du)控(Kong)制(Zhi)和(He)通(Tong)行(Xing)管(Guan)理(Li)方(Fang)案(An)。(?)

 (?) (?)6) 必(Bi)要(Yao)时(Shi),(?)重(Zhong)复(Fu)以(Yi)上(Shang)步(Bu)骤(Zhou)和(He)过(Guo)程(Cheng),(?)直(Zhi)到(Dao)上(Shang)坡(Po)和(He)下(Xia)坡(Po)两(Liang)个(Ge)角(Jiao)度(Du),(?)各(Ge)项(Xiang)指(Zhi)标(Biao)均(Jun)满(Man)足(Zu)《(?)规(Gui)范(Fan)》(?)对(Dui)应(Ying)要(Yao)求(Qiu)。(?)

 (?) (?)补(Bu)充(Chong)说(Shuo)明(Ming):(?)

 (?) (?)以(Yi)上(Shang)设(She)计(Ji)方(Fang)法(Fa)和(He)流(Liu)程(Cheng)仅(Jin)为(Wei)概(Gai)述(Shu)性(Xing)质(Zhi),(?)具(Ju)体(Ti)工(Gong)程(Cheng)设(She)计(Ji)中(Zhong)应(Ying)结(Jie)合(He)实(Shi)际(Ji)情(Qing)况(Kuang),(?)因(Yin)地(Di)制(Zhi)宜(Yi),(?)灵(Ling)活(Huo)运(Yun)用(Yong)。(?)上(Shang)述(Shu)内(Nei)容(Rong)未(Wei)重(Zhong)点(Dian)介(Jie)绍(Shao)上(Shang)坡(Po)方(Fang)向(Xiang)的(De)纵(Zong)坡(Po)设(She)计(Ji)方(Fang)法(Fa)和(He)指(Zhi)标(Biao)。(?)

 (?) (?)06

 (?) (?)与(Yu)上(Shang)坡(Po)方(Fang)向(Xiang)比(Bi)较(Jiao),(?)长(Chang)下(Xia)坡(Po)设(She)计(Ji)方(Fang)法(Fa)有(You)哪(Na)些(Xie)不(Bu)同(Tong)?(?)

 (?) (?)基(Ji)于(Yu)货(Huo)车(Che)上(Shang)坡(Po)、(?)下(Xia)坡(Po)的(De)综(Zong)合(He)能(Neng)力(Li)与(Yu)对(Dui)应(Ying)坡(Po)度(Du)、(?)坡(Po)长(Chang)等(Deng)对(Dui)比(Bi),(?)可(Ke)以(Yi)得(De)出(Chu)“高(Gao)速(Su)公(Gong)路(Lu)纵(Zong)坡(Po)设(She)计(Ji)主(Zhu)要(Yao)受(Shou)车(Che)辆(Liang)上(Shang)坡(Po)性(Xing)能(Neng)条(Tiao)件(Jian)控(Kong)制(Zhi)”的(De)结(Jie)论(Lun)。(?)与(Yu)上(Shang)坡(Po)方(Fang)向(Xiang)比(Bi)较(Jiao),(?)下(Xia)坡(Po)方(Fang)向(Xiang)纵(Zong)坡(Po)与(Yu)坡(Po)长(Chang)均(Jun)可(Ke)以(Yi)更(Geng)大(Da)、(?)更(Geng)长(Chang),(?)即(Ji)下(Xia)坡(Po)方(Fang)向(Xiang)可(Ke)灵(Ling)活(Huo)设(She)计(Ji)、(?)掌(Zhang)握(Wo)的(De)空(Kong)间(Jian)更(Geng)大(Da),(?)受(Shou)限(Xian)制(Zhi)更(Geng)少(Shao)。(?)这(Zhe)也(Ye)是(Shi)为(Wei)什(Shi)么(Me)世(Shi)界(Jie)各(Ge)国(Guo)标(Biao)准(Zhun)中(Zhong),(?)纵(Zong)坡(Po)指(Zhi)标(Biao)均(Jun)主(Zhu)要(Yao)从(Cong)上(Shang)坡(Po)方(Fang)向(Xiang)确(Que)定(Ding)的(De)原(Yuan)因(Yin)。(?)

 (?) (?)同(Tong)时(Shi),(?)由(You)于(Yu)以(Yi)往(Wang)公(Gong)路(Lu)设(She)计(Ji)、(?)建(Jian)设(She)以(Yi)整(Zheng)体(Ti)式(Shi)路(Lu)基(Ji)断(Duan)面(Mian)为(Wei)主(Zhu),(?)而(?)在(Zai)整(Zheng)体(Ti)式(Shi)路(Lu)基(Ji)的(De)公(Gong)路(Lu)纵(Zong)坡(Po)设(She)计(Ji)中(Zhong),(?)上(Shang)坡(Po)方(Fang)向(Xiang)的(De)纵(Zong)坡(Po)组(Zu)合(He)必(Bi)然(Ran)也(Ye)同(Tong)时(Shi)决(Jue)定(Ding)了(Liao)下(Xia)坡(Po)方(Fang)向(Xiang)的(De)纵(Zong)坡(Po)条(Tiao)件(Jian),(?)所(Suo)以(Yi),(?)以(Yi)往(Wang)公(Gong)路(Lu)纵(Zong)坡(Po)设(She)计(Ji)主(Zhu)要(Yao)从(Cong)上(Shang)坡(Po)方(Fang)向(Xiang)考(Kao)虑(Lu)较(Jiao)多(Duo)。(?)在(Zai)本(Ben)质(Zhi)上(Shang),(?)上(Shang)坡(Po)方(Fang)向(Xiang)纵(Zong)坡(Po)设(She)计(Ji)重(Zhong)点(Dian)解(Jie)决(Jue)的(De)连(Lian)续(Xu)上(Shang)坡(Po)过(Guo)程(Cheng)中(Zhong)的(De)路(Lu)段(Duan)通(Tong)行(Xing)能(Neng)力(Li)和(He)服(Fu)务(Wu)水(Shui)平(Ping)问(Wen)题(Ti)。(?)

 (?) (?)但(Dan)我(Wo)国(Guo)货(Huo)运(Yun)车(Che)型(Xing)大(Da)型(Xing)化(Hua)发(Fa)展(Zhan)、(?)车(Che)辆(Liang)整(Zheng)体(Ti)性(Xing)能(Neng)和(He)持(Chi)续(Xu)制(Zhi)动(Dong)不(Bu)足(Zu)等(Deng)情(Qing)况(Kuang)之(Zhi)后(Hou),(?)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)纵(Zong)坡(Po)设(She)计(Ji)出(Chu)现(Xian)了(Liao)新(Xin)的(De)关(Guan)键(Jian)点(Dian)——下(Xia)坡(Po)方(Fang)向(Xiang)的(De)安(An)全(Quan)性(Xing)问(Wen)题(Ti)。(?)于(Yu)是(Shi),(?)即(Ji)便(Bian)同(Tong)样(Yang)是(Shi)整(Zheng)体(Ti)式(Shi)路(Lu)基(Ji)断(Duan)面(Mian),(?)现(Xian)在(Zai)高(Gao)速(Su)公(Gong)路(Lu)连(Lian)续(Xu)纵(Zong)坡(Po)设(She)计(Ji)还(Huan)必(Bi)须(Xu)从(Cong)下(Xia)坡(Po)方(Fang)向(Xiang)考(Kao)虑(Lu)。(?)具(Ju)体(Ti)就(Jiu)是(Shi)对(Dui)照(Zhao)《(?)规(Gui)范(Fan)》(?)表(Biao)8.3.5的(De)“连(Lian)续(Xu)长(Chang)、(?)陡(Dou)下(Xia)坡(Po)的(De)平(Ping)均(Jun)坡(Po)度(Du)与(Yu)坡(Po)长(Chang)”指(Zhi)标(Biao),(?)对(Dui)平(Ping)均(Jun)纵(Zong)坡(Po)进(Jin)行(Xing)检(Jian)查(Cha)和(He)评(Ping)价(Jia)。(?)

 (?) (?)需(Xu)要(Yao)特(Te)别(Bie)强(Qiang)调(Diao)的(De)是(Shi),(?)在(Zai)采(Cai)用(Yong)分(Fen)离(Li)式(Shi)路(Lu)基(Ji)的(De)下(Xia)坡(Po)方(Fang)向(Xiang),(?)纵(Zong)坡(Po)设(She)计(Ji)最(Zui)终(Zhong)只(Zhi)受(Shou)到(Dao)《(?)规(Gui)范(Fan)》(?)表(Biao)8.2.1((?)最(Zui)大(Da)纵(Zong)坡(Po))(?)和(He)表(Biao)8.3.5((?)平(Ping)均(Jun)纵(Zong)坡(Po))(?)两(Liang)个(Ge)指(Zhi)标(Biao)限(Xian)制(Zhi)。(?)从(Cong)“法(Fa)无(Wu)禁(Jin)止(Zhi)即(Ji)可(Ke)为(Wei)”的(De)原(Yuan)则(Ze)出(Chu)发(Fa),(?)应(Ying)该(Gai)说(Shuo),(?)相(Xiang)对(Dui)于(Yu)整(Zheng)体(Ti)式(Shi)路(Lu)基(Ji)而(?)言(Yan),(?)分(Fen)离(Li)式(Shi)路(Lu)基(Ji)的(De)下(Xia)坡(Po)方(Fang)向(Xiang)纵(Zong)坡(Po)设(She)计(Ji)灵(Ling)活(Huo)展(Zhan)线(Xian)、(?)优(You)化(Hua)设(She)计(Ji)的(De)空(Kong)间(Jian)更(Geng)大(Da),(?)且(Qie)不(Bu)需(Xu)要(Yao)有(You)意(Yi)识(Shi)考(Kao)虑(Lu)设(She)置(Zhi)缓(Huan)坡(Po)。(?)工(Gong)程(Cheng)师(Shi)可(Ke)以(Yi)更(Geng)多(Duo)把(Ba)重(Zhong)点(Dian)放(Fang)在(Zai)填(Tian)完(Wan)平(Ping)衡(Heng)、(?)工(Gong)程(Cheng)量(Liang)最(Zui)小(Xiao)、(?)以(Yi)及(Ji)其(Qi)他(Ta)控(Kong)制(Zhi)因(Yin)素(Su)方(Fang)面(Mian)。(?)

 (?) (?)07

 (?) (?)长(Chang)下(Xia)坡(Po)路(Lu)段(Duan)采(Cai)用(Yong)“一(Yi)坡(Po)到(Dao)底(Di)”的(De)纵(Zong)坡(Po)方(Fang)案(An),(?)可(Ke)行(Xing)吗(Ma)?(?)

 (?) (?)有(You)专(Zhuan)业(Ye)技(Ji)术(Shu)人(Ren)员(Yuan)提(Ti)问(Wen),(?)某(Mou)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)((?)设(She)计(Ji)速(Su)度(Du)100km/h)(?)在(Zai)分(Fen)离(Li)式(Shi)路(Lu)基(Ji)下(Xia)坡(Po)方(Fang)向(Xiang)对(Dui)照(Zhao)《(?)规(Gui)范(Fan)》(?),(?)如(Ru)果(Guo)采(Cai)用(Yong)3.5%、(?)长(Chang)度(Du)9公(Gong)里(Li),(?)一(Yi)坡(Po)到(Dao)底(Di)的(De)方(Fang)案(An)可(Ke)行(Xing)吗(Ma)?(?)符(Fu)合(He)《(?)规(Gui)范(Fan)》(?)要(Yao)求(Qiu)吗(Ma)?(?)

 (?) (?)可(Ke)以(Yi)肯(Ken)定(Ding)的(De)回(Hui)答(Da):(?)可(Ke)以(Yi),(?)符(Fu)合(He)《(?)规(Gui)范(Fan)》(?)要(Yao)求(Qiu)!(?)

 (?) (?)尽(Jin)管(Guan)山(Shan)区(Qu)地(Di)形(Xing)起(Qi)伏(Fu)变(Bian)化(Hua)大(Da),(?)加(Jia)上(Shang)桥(Qiao)隧(Sui)构(Gou)造(Zao)物(Wu)布(Bu)置(Zhi)等(Deng)制(Zhi)约(Yue)影(Ying)响(Xiang),(?)实(Shi)际(Ji)工(Gong)程(Cheng)不(Bu)会(Hui)采(Cai)用(Yong)“一(Yi)坡(Po)到(Dao)底(Di)”的(De)纵(Zong)坡(Po)设(She)计(Ji)方(Fang)案(An),(?)但(Dan)从(Cong)符(Fu)合(He)《(?)规(Gui)范(Fan)》(?)角(Jiao)度(Du)而(?)言(Yan),(?)只(Zhi)要(Yao)平(Ping)均(Jun)纵(Zong)坡(Po)坡(Po)度(Du)与(Yu)坡(Po)长(Chang)在(Zai)《(?)规(Gui)范(Fan)》(?)表(Biao)8.3.5的(De)范(Fan)围(Wei)之(Zhi)内(Nei),(?)采(Cai)用(Yong)3.5%的(De)坡(Po)度(Du)、(?)“一(Yi)坡(Po)到(Dao)底(Di)”,(?)符(Fu)合(He)《(?)规(Gui)范(Fan)》(?)要(Yao)求(Qiu)。(?)

 (?) (?)因(Yin)为(Wei),(?)前(Qian)文(Wen)曾(Zeng)重(Zhong)点(Dian)述(Shu)及(Ji),(?)《(?)规(Gui)范(Fan)》(?)表(Biao)8.3.5是(Shi)根(Gen)据(Ju)专(Zhuan)题(Ti)试(Shi)验(Yan)研(Yan)究(Jiu)((?)包(Bao)括(Kuo)实(Shi)车(Che)现(Xian)场(Chang)试(Shi)验(Yan)等(Deng))(?),(?)在(Zai)货(Huo)车(Che)主(Zhu)导(Dao)车(Che)型(Xing)采(Cai)用(Yong)发(Fa)动(Dong)机(Ji)辅(Fu)助(Zhu)制(Zhi)动(Dong)——偏(Pian)于(Yu)保(Bao)守(Shou)、(?)安(An)全(Quan)的(De)工(Gong)况(Kuang)条(Tiao)件(Jian)下(Xia)得(De)出(Chu)。(?)只(Zhi)要(Yao)驾(Jia)驶(Shi)员(Yuan)不(Bu)违(Wei)法(Fa)违(Wei)规(Gui)驾(Jia)驶(Shi),(?)完(Wan)全(Quan)可(Ke)以(Yi)安(An)全(Quan)通(Tong)行(Xing)。(?)如(Ru)果(Guo)驾(Jia)驶(Shi)员(Yuan)正(Zheng)确(Que)使(Shi)用(Yong)辅(Fu)助(Zhu)制(Zhi)动(Dong)系(Xi)统(Tong),(?)安(An)全(Quan)连(Lian)续(Xu)下(Xia)坡(Po)的(De)坡(Po)度(Du)、(?)坡(Po)长(Chang)还(Huan)可(Ke)以(Yi)更(Geng)大(Da)、(?)更(Geng)长(Chang)。(?)

 (?) (?)另(Ling)外(Wai),(?)与(Yu)美(Mei)国(Guo)等(Deng)其(Qi)他(Ta)国(Guo)家(Jia)同(Tong)类(Lei)工(Gong)程(Cheng)比(Bi)较(Jiao),(?)我(Wo)国(Guo)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)的(De)纵(Zong)坡(Po)偏(Pian)于(Yu)平(Ping)缓(Huan),(?)指(Zhi)标(Biao)采(Cai)用(Yong)偏(Pian)于(Yu)保(Bao)守(Shou)、(?)安(An)全(Quan)。(?)例(Li)如(Ru),(?)在(Zai)美(Mei)国(Guo)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)中(Zhong),(?)5-6%的(De)连(Lian)续(Xu)纵(Zong)坡(Po),(?)动(Dong)辄(Zhe)长(Chang)大(Da)10英(Ying)里(Li)以(Yi)上(Shang)((?)参(Can)阅(Yue)《(?)中(Zhong)国(Guo)死(Si)亡(Wang)之(Zhi)坡(Po),(?)放(Fang)到(Dao)美(Mei)国(Guo)排(Pai)第(Di)几(Ji)?(?)》(?)等(Deng)文(Wen)章(Zhang))(?)。(?)

 (?) (?)08

 (?) (?)结(Jie)语(Yu)

 (?) (?)回(Hui)顾(Gu)《(?)规(Gui)范(Fan)》(?)修(Xiu)订(Ding)过(Guo)程(Cheng),(?)参(Can)与(Yu)修(Xiu)编(Bian)工(Gong)作(Zuo)的(De)很(Hen)多(Duo)领(Ling)导(Dao)、(?)专(Zhuan)家(Jia)都(Du)记(Ji)得(De),(?)长(Chang)下(Xia)坡(Po)安(An)全(Quan)问(Wen)题(Ti)是(Shi)我(Wo)国(Guo)新(Xin)版(Ban)公(Gong)路(Lu)技(Ji)术(Shu)标(Biao)准(Zhun)规(Gui)范(Fan)修(Xiu)订(Ding)中(Zhong)的(De)焦(Jiao)点(Dian)问(Wen)题(Ti)。(?)虽(Sui)然(Ran),(?)配(Pei)套(Tao)专(Zhuan)题(Ti)研(Yan)究(Jiu)早(Zao)在(Zai)2014年(Nian)就(Jiu)已(Yi)经(Jing)完(Wan)成(Cheng),(?)但(Dan)由(You)于(Yu)问(Wen)题(Ti)复(Fu)杂(Za)、(?)涉(She)及(Ji)面(Mian)广(Guang)、(?)结(Jie)论(Lun)与(Yu)经(Jing)验(Yan)认(Ren)识(Shi)差(Cha)异(Yi)大(Da)等(Deng)原(Yuan)因(Yin),(?)随(Sui)后(Hou)进(Jin)行(Xing)了(Liao)长(Chang)达(Da)约(Yue)2年(Nian)时(Shi)间(Jian)的(De)再(Zai)研(Yan)究(Jiu)、(?)检(Jian)验(Yan)和(He)验(Yan)证(Zheng)工(Gong)作(Zuo),(?)最(Zui)终(Zhong)才(Cai)在(Zai)2017版(Ban)《(?)规(Gui)范(Fan)》(?)中(Zhong)正(Zheng)式(Shi)发(Fa)布(Bu)实(Shi)施(Shi)。(?)

 (?) (?)客(Ke)观(Guan)而(?)言(Yan),(?)专(Zhuan)题(Ti)研(Yan)究(Jiu)提(Ti)出(Chu)的(De)“连(Lian)续(Xu)长(Chang)、(?)陡(Dou)下(Xia)坡(Po)平(Ping)均(Jun)纵(Zong)坡(Po)指(Zhi)标(Biao)”,(?)有(You)充(Chong)分(Fen)的(De)调(Diao)查(Cha)研(Yan)究(Jiu)基(Ji)础(Chu),(?)有(You)科(Ke)学(Xue)的(De)数(Shu)据(Ju)结(Jie)论(Lun)支(Zhi)撑(Cheng),(?)还(Huan)经(Jing)过(Guo)了(Liao)各(Ge)层(Ceng)级(Ji)、(?)跨(Kua)行(Xing)业(Ye)的(De)反(Fan)复(Fu)审(Shen)查(Cha)、(?)评(Ping)审(Shen)。(?)在(Zai)《(?)规(Gui)范(Fan)》(?)((?)2017版(Ban))(?)正(Zheng)式(Shi)发(Fa)布(Bu)实(Shi)施(Shi)之(Zhi)后(Hou),(?)意(Yi)味(Wei)着(Zhuo)该(Gai)指(Zhi)标(Biao)已(Yi)经(Jing)不(Bu)只(Zhi)是(Shi)一(Yi)项(Xiang)研(Yan)究(Jiu)成(Cheng)果(Guo),(?)而(?)是(Shi)经(Jing)过(Guo)行(Xing)业(Ye)审(Shen)慎(Shen)研(Yan)究(Jiu)确(Que)定(Ding)的(De)、(?)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)设(She)计(Ji)的(De)直(Zhi)接(Jie)依(Yi)据(Ju)。(?)

 (?) (?)本(Ben)文(Wen)再(Zai)次(Ci)综(Zong)述(Shu)高(Gao)速(Su)公(Gong)路(Lu)连(Lian)续(Xu)长(Chang)下(Xia)坡(Po)设(She)计(Ji)方(Fang)法(Fa)与(Yu)指(Zhi)标(Biao),(?)意(Yi)在(Zai)呼(Hu)吁(Yu)各(Ge)地(Di)和(He)工(Gong)程(Cheng)专(Zhuan)业(Ye)技(Ji)术(Shu)人(Ren)员(Yuan),(?)充(Chong)分(Fen)理(Li)解(Jie)《(?)规(Gui)范(Fan)》(?)指(Zhi)标(Biao)的(De)来(Lai)源(Yuan)和(He)依(Yi)据(Ju),(?)客(Ke)观(Guan)认(Ren)识(Shi)长(Chang)下(Xia)坡(Po)安(An)全(Quan)问(Wen)题(Ti)的(De)本(Ben)质(Zhi),(?)克(Ke)服(Fu)以(Yi)往(Wang)经(Jing)验(Yan)认(Ren)识(Shi)和(He)习(Xi)惯(Guan)做(Zuo)法(Fa),(?)科(Ke)学(Xue)、(?)灵(Ling)活(Huo)进(Jin)行(Xing)山(Shan)区(Qu)高(Gao)速(Su)公(Gong)路(Lu)纵(Zong)坡(Po)设(She)计(Ji)。(?)



 (?) (?)(版(Ban)权(Quan)归(Gui)原(Yuan)作(Zuo)者(Zhe)所(Suo)有(You),(?)图(Tu)片(Pian)来(Lai)自(Zi)网(Wang)络(Luo);(?)如(Ru)有(You)侵(Qin)权(Quan),(?)请(Qing)与(Yu)我(Wo)们(Men)联(Lian)系(Xi),(?)我(Wo)们(Men)将(Jiang)在(Zai)第(Di)一(Yi)时(Shi)间(Jian)进(Jin)行(Xing)处(Chu)理(Li)。(?))
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