• 分(Fen)类(Lei)：(?)公(Gong)司(Si)新(Xin)闻(Wen)
• 作(Zuo)者(Zhe)：(?)
• 来(Lai)源(Yuan)：(?)
• 发(Fa)布(Bu)时(Shi)间(Jian)：(?)2020-07-29
• 访(Fang)问(Wen)量(Liang)：(?)0

【(?)概(Gai)要(Yao)描(Miao)述(Shu)】(?)一(Yi)、(?)为(Wei)什(Shi)么(Me)是(Shi)二(?)衬(Chen)灌(Guan)筑(Zhu)砼(Tong)完(Wan)成(Cheng)1~1.5小(Xiao)时(Shi)后(Hou)启(Qi)动(Dong)注(Zhu)浆(Jiang)作(Zuo)业(Ye)？(?)注(Zhu)浆(Jiang)时(Shi)机(Ji)选(Xuan)择(Ze)有(You)什(Shi)么(Me)要(Yao)求(Qiu)？(?)答(Da)：(?)2016年(Nian)11月(Yue)15日(Ri)中(Zhong)国(Guo)铁(Tie)路(Lu)总(Zong)公(Gong)司(Si)工(Gong)管(Guan)中(Zhong)心(Xin)发(Fa)布(Bu)《(?)关(Guan)于(Yu)推(Tui)广(Guang)铁(Tie)路(Lu)隧(Sui)道(Dao)衬(Chen)砌(Qi)施(Shi)工(Gong)成(Cheng)套(Tao)技(Ji)术(Shu)的(De)通(Tong)知(Zhi)》(?)（(?)工(Gong)管(Guan)质(Zhi)安(An)函(Han)[2016]233号(Hao)）(?)，(?)其(Qi)中(Zhong)要(Yao)求(Qiu)推(Tui)广(Guang)径(Jing)向(Xiang)预(Yu)埋(Mai)RPC注(Zhu)浆(Jiang)管(Guan)拱(Gong)顶(Ding)带(Dai)模(Mo)注(Zhu)浆(Jiang)技(Ji)术(Shu)，(?)其(Qi)具(Ju)体(Ti)技(Ji)术(Shu)要(Yao)求(Qiu)可(Ke)参(Can)照(Zhao)京(Jing)沈(Shen)客(Ke)专(Zhuan)京(Jing)冀(Ji)公(Gong)司(Si)《(?)隧(Sui)道(Dao)衬(Chen)砌(Qi)拱(Gong)顶(Ding)带(Dai)模(Mo)注(Zhu)浆(Jiang)技(Ji)术(Shu)要(Yao)求(Qiu)》(?)第(Di)38页(Ye)，(?)建(Jian)议(Yi)注(Zhu)浆(Jiang)开(Kai)始(Shi)时(Shi)间(Jian)在(Zai)二(?)衬(Chen)砼(Tong)灌(Guan)注(Zhu)结(Jie)束(Shu)1~2h后(Hou)进(Jin)行(Xing)。(?)注(Zhu)浆(Jiang)时(Shi)机(Ji)选(Xuan)择(Ze)需(Xu)考(Kao)虑(Lu)：(?)一(Yi)方(Fang)面(Mian)砼(Tong)有(You)一(Yi)个(Ge)向(Xiang)边(Bian)墙(Qiang)缓(Huan)慢(Man)自(Zi)密(Mi)实(Shi)填(Tian)充(Chong)的(De)过(Guo)程(Cheng)，(?)过(Guo)早(Zao)则(Ze)不(Bu)利(Li)于(Yu)砼(Tong)完(Wan)成(Cheng)该(Gai)过(Guo)程(Cheng)；(?)另(Ling)一(Yi)方(Fang)面(Mian)不(Bu)宜(Yi)太(Tai)晚(Wan)，(?)退(Tui)管(Guan)注(Zhu)浆(Jiang)一(Yi)般(Ban)需(Xu)0.3~1h即(Ji)可(Ke)完(Wan)成(Cheng)，(?)二(?)衬(Chen)砼(Tong)初(Chu)凝(Ning)时(Shi)间(Jian)一(Yi)般(Ban)为(Wei)4~5h，(?)带(Dai)模(Mo)注(Zhu)浆(Jiang)应(Ying)在(Zai)砼(Tong)初(Chu)凝(Ning)之(Zhi)前(Qian)完(Wan)成(Cheng)才(Cai)有(You)利(Li)于(Yu)注(Zhu)浆(Jiang)砂(Sha)浆(Jiang)与(Yu)二(?)衬(Chen)灌(Guan)注(Zhu)砼(Tong)融(Rong)合(He)成(Cheng)一(Yi)体(Ti)，(?)以(Yi)及(Ji)符(Fu)合(He)砼(Tong)强(Qiang)度(Du)增(Zeng)长(Chang)规(Gui)律(Lu)。(?)带(Dai)模(Mo)注(Zhu)浆(Jiang)实(Shi)践(Jian)表(Biao)明(Ming)，(?)二(?)衬(Chen)灌(Guan)筑(Zhu)砼(Tong)完(Wan)成(Cheng)1~1.5小(Xiao)时(Shi)后(Hou)启(Qi)动(Dong)注(Zhu)浆(Jiang)作(Zuo)业(Ye)，(?)时(Shi)机(Ji)比(Bi)较(Jiao)合(He)适(Shi)。(?)二(?)、(?)为(Wei)什(Shi)么(Me)选(Xuan)择(Ze)0.2~0.3MPa作(Zuo)为(Wei)注(Zhu)浆(Jiang)压(Ya)力(Li)控(Kong)制(Zhi)限(Xian)值(Zhi)？(?)对(Dui)二(?)衬(Chen)砼(Tong)是(Shi)否(Fou)有(You)影(Ying)响(Xiang)？(?)答(Da)：(?)2016年(Nian)11月(Yue)15日(Ri)中(Zhong)国(Guo)铁(Tie)路(Lu)总(Zong)公(Gong)司(Si)工(Gong)管(Guan)中(Zhong)心(Xin)发(Fa)布(Bu)《(?)关(Guan)于(Yu)推(Tui)广(Guang)铁(Tie)路(Lu)隧(Sui)道(Dao)衬(Chen)砌(Qi)施(Shi)工(Gong)成(Cheng)套(Tao)技(Ji)术(Shu)的(De)通(Tong)知(Zhi)》(?)（(?)工(Gong)管(Guan)质(Zhi)安(An)函(Han)[2016]233号(Hao)）(?)，(?)其(Qi)中(Zhong)要(Yao)求(Qiu)推(Tui)广(Guang)径(Jing)向(Xiang)预(Yu)埋(Mai)RPC注(Zhu)浆(Jiang)管(Guan)拱(Gong)顶(Ding)带(Dai)模(Mo)注(Zhu)浆(Jiang)具(Ju)体(Ti)注(Zhu)浆(Jiang)压(Ya)力(Li)控(Kong)制(Zhi)要(Yao)求(Qiu)，(?)可(Ke)参(Can)照(Zhao)京(Jing)沈(Shen)客(Ke)专(Zhuan)京(Jing)冀(Ji)公(Gong)司(Si)《(?)隧(Sui)道(Dao)衬(Chen)砌(Qi)拱(Gong)顶(Ding)带(Dai)模(Mo)注(Zhu)浆(Jiang)技(Ji)术(Shu)要(Yao)求(Qiu)》(?)第(Di)17页(Ye)，(?)注(Zhu)浆(Jiang)压(Ya)力(Li)控(Kong)制(Zhi)在(Zai)1.0MPa，(?)因(Yin)此(Ci)在(Zai)同(Tong)样(Yang)工(Gong)况(Kuang)下(Xia)，(?)二(?)衬(Chen)拱(Gong)部(Bu)退(Tui)管(Guan)带(Dai)模(Mo)注(Zhu)浆(Jiang)压(Ya)力(Li)控(Kong)制(Zhi)在(Zai)0.2~0.3MPa应(Ying)该(Gai)不(Bu)会(Hui)二(?)衬(Chen)砼(Tong)结(Jie)构(Gou)有(You)影(Ying)响(Xiang)。(?)2015年(Nian)8月(Yue)25日(Ri)中(Zhong)国(Guo)铁(Tie)路(Lu)总(Zong)公(Gong)司(Si)工(Gong)管(Guan)中(Zhong)心(Xin)发(Fa)布(Bu)《(?)铁(Tie)路(Lu)隧(Sui)道(Dao)二(?)次(Ci)衬(Chen)砌(Qi)预(Yu)防(Fang)拱(Gong)顶(Ding)空(Kong)洞(Dong)实(Shi)施(Shi)意(Yi)见(Jian)》(?)（(?)工(Gong)管(Guan)桥(Qiao)隧(Sui)函(Han)[2015]199号(Hao)）(?)，(?)第(Di)七(Qi)条(Tiao)要(Yao)求(Qiu)拱(Gong)顶(Ding)回(Hui)填(Tian)注(Zhu)浆(Jiang)在(Zai)衬(Chen)砌(Qi)脱(Tuo)模(Mo)前(Qian)及(Ji)时(Shi)进(Jin)行(Xing)，(?)压(Ya)力(Li)应(Ying)达(Da)到(Dao)0.2MPa。(?)根(Gen)据(Ju)现(Xian)场(Chang)实(Shi)践(Jian)，(?)退(Tui)管(Guan)注(Zhu)浆(Jiang)工(Gong)艺(Yi)的(De)纵(Zong)向(Xiang)注(Zhu)浆(Jiang)管(Guan)布(Bu)置(Zhi)位(Wei)置(Zhi)距(Ju)离(Li)拱(Gong)顶(Ding)基(Ji)面(Mian)一(Yi)般(Ban)不(Bu)会(Hui)超(Chao)过(Guo)40cm，(?)按(An)照(Zhao)40cm砼(Tong)高(Gao)度(Du)计(Ji)算(Suan)流(Liu)塑(Su)状(Zhuang)砼(Tong)压(Ya)力(Li)仅(Jin)有(You)0.01MPa（(?)2500*10*0.4/1000000=0.01）(?)，(?)因(Yin)此(Ci)退(Tui)管(Guan)带(Dai)模(Mo)注(Zhu)浆(Jiang)压(Ya)力(Li)控(Kong)制(Zhi)在(Zai)0.2~0.3MPa能(Neng)满(Man)足(Zu)注(Zhu)浆(Jiang)饱(Bao)满(Man)的(De)压(Ya)力(Li)需(Xu)求(Qiu)，(?)现(Xian)场(Chang)注(Zhu)浆(Jiang)效(Xiao)果(Guo)检(Jian)测(Ce)也(Ye)表(Biao)明(Ming)该(Gai)压(Ya)力(Li)范(Fan)围(Wei)即(Ji)可(Ke)达(Da)到(Dao)注(Zhu)浆(Jiang)回(Hui)填(Tian)效(Xiao)果(Guo)。(?)三(San)、(?)带(Dai)模(Mo)注(Zhu)浆(Jiang)砂(Sha)浆(Jiang)是(Shi)否(Fou)能(Neng)与(Yu)二(?)衬(Chen)砼(Tong)融(Rong)合(He)成(Cheng)一(Yi)体(Ti)？(?)是(Shi)否(Fou)会(Hui)减(Jian)弱(Ruo)二(?)衬(Chen)拱(Gong)部(Bu)砼(Tong)强(Qiang)度(Du)？(?)答(Da)：(?)目(Mu)前(Qian)普(Pu)遍(Bian)采(Cai)用(Yong)的(De)二(?)衬(Chen)带(Dai)模(Mo)注(Zhu)浆(Jiang)材(Cai)料(Liao)有(You)水(Shui)泥(Ni)浆(Jiang)（(?)参(Can)见(Jian)《(?)铁(Tie)路(Lu)隧(Sui)道(Dao)二(?)次(Ci)衬(Chen)砌(Qi)预(Yu)防(Fang)拱(Gong)顶(Ding)空(Kong)洞(Dong)实(Shi)施(Shi)意(Yi)见(Jian)》(?)（(?)工(Gong)管(Guan)桥(Qiao)隧(Sui)函(Han)[2015]199号(Hao)）(?)）(?)和(He)市(Shi)场(Chang)成(Cheng)品(Pin)微(Wei)膨(Peng)胀(Zhang)注(Zhu)浆(Jiang)料(Liao)（(?)参(Can)见(Jian)《(?)关(Guan)于(Yu)推(Tui)广(Guang)铁(Tie)路(Lu)隧(Sui)道(Dao)衬(Chen)砌(Qi)施(Shi)工(Gong)成(Cheng)套(Tao)技(Ji)术(Shu)的(De)通(Tong)知(Zhi)》(?)（(?)工(Gong)管(Guan)质(Zhi)安(An)函(Han)[2016]233号(Hao)）(?)的(De)RPC管(Guan)注(Zhu)浆(Jiang)料(Liao)）(?)，(?)其(Qi)注(Zhu)浆(Jiang)料(Liao)与(Yu)二(?)衬(Chen)砼(Tong)能(Neng)否(Fou)融(Rong)合(He)以(Yi)及(Ji)是(Shi)否(Fou)会(Hui)减(Jian)弱(Ruo)二(?)衬(Chen)拱(Gong)部(Bu)砼(Tong)强(Qiang)度(Du)，(?)未(Wei)见(Jian)工(Gong)程(Cheng)参(Can)建(Jian)各(Ge)方(Fang)执(Zhi)行(Xing)过(Guo)程(Cheng)中(Zhong)提(Ti)出(Chu)质(Zhi)疑(Yi)。(?)施(Shi)工(Gong)现(Xian)场(Chang)实(Shi)际(Ji)操(Cao)作(Zuo)中(Zhong)，(?)二(?)衬(Chen)砼(Tong)浇(Jiao)筑(Zhu)前(Qian)都(Du)有(You)用(Yong)砂(Sha)浆(Jiang)润(Run)湿(Shi)泵(Beng)送(Song)管(Guan)道(Dao)、(?)溜(Liu)槽(Cao)的(De)惯(Guan)例(Li)做(Zuo)法(Fa)，(?)砂(Sha)浆(Jiang)和(He)砼(Tong)是(Shi)可(Ke)以(Yi)融(Rong)合(He)为(Wei)一(Yi)体(Ti)的(De)。(?)经(Jing)现(Xian)场(Chang)实(Shi)践(Jian)，(?)本(Ben)退(Tui)管(Guan)注(Zhu)浆(Jiang)工(Gong)艺(Yi)及(Ji)配(Pei)套(Tao)设(She)备(Bei)可(Ke)采(Cai)用(Yong)水(Shui)泥(Ni)、(?)粉(Fen)煤(Mei)灰(Hui)、(?)河(He)砂(Sha)、(?)减(Jian)水(Shui)剂(Ji)等(Deng)常(Chang)见(Jian)材(Cai)料(Liao)配(Pei)比(Bi)砂(Sha)浆(Jiang)，(?)砂(Sha)浆(Jiang)经(Jing)试(Shi)验(Yan)室(Shi)配(Pei)合(He)比(Bi)试(Shi)验(Yan)及(Ji)砼(Tong)试(Shi)件(Jian)检(Jian)验(Yan)，(?)其(Qi)强(Qiang)度(Du)能(Neng)达(Da)到(Dao)二(?)衬(Chen)砼(Tong)强(Qiang)度(Du)等(Deng)级(Ji)要(Yao)求(Qiu)（(?)可(Ke)见(Jian)附(Fu)件(Jian)1）(?)，(?)只(Zhi)要(Yao)砂(Sha)浆(Jiang)强(Qiang)度(Du)能(Neng)达(Da)到(Dao)二(?)衬(Chen)砼(Tong)同(Tong)等(Deng)强(Qiang)度(Du)要(Yao)求(Qiu)就(Jiu)不(Bu)会(Hui)减(Jian)弱(Ruo)二(?)衬(Chen)砼(Tong)强(Qiang)度(Du)。(?)注(Zhu)浆(Jiang)材(Cai)料(Liao)（(?)砂(Sha)浆(Jiang)）(?)选(Xuan)材(Cai)应(Ying)根(Gen)据(Ju)各(Ge)工(Gong)程(Cheng)项(Xiang)目(Mu)的(De)实(Shi)际(Ji)材(Cai)料(Liao)状(Zhuang)况(Kuang)进(Jin)行(Xing)合(He)理(Li)选(Xuan)择(Ze)，(?)经(Jing)配(Pei)合(He)比(Bi)试(Shi)验(Yan)及(Ji)现(Xian)场(Chang)工(Gong)艺(Yi)试(Shi)验(Yan)进(Jin)行(Xing)调(Diao)整(Zheng)、(?)优(You)化(Hua)和(He)最(Zui)终(Zhong)确(Que)定(Ding)。(?)只(Zhi)要(Yao)注(Zhu)浆(Jiang)工(Gong)艺(Yi)方(Fang)法(Fa)是(Shi)可(Ke)行(Xing)、(?)合(He)理(Li)、(?)最(Zui)优(You)的(De)，(?)用(Yong)什(Shi)么(Me)注(Zhu)浆(Jiang)材(Cai)料(Liao)会(Hui)更(Geng)好(Hao)，(?)工(Gong)程(Cheng)参(Can)建(Jian)各(Ge)方(Fang)可(Ke)以(Yi)因(Yin)地(Di)制(Zhi)宜(Yi)，(?)去(Qu)试(Shi)验(Yan)、(?)优(You)化(Hua)、(?)确(Que)定(Ding)，(?)将(Jiang)工(Gong)艺(Yi)效(Xiao)果(Guo)做(Zuo)到(Dao)更(Geng)好(Hao)。(?)四(Si)、(?)拱(Gong)部(Bu)排(Pai)气(Qi)用(Yong)的(De)纵(Zong)向(Xiang)PVC管(Guan)对(Dui)二(?)衬(Chen)有(You)何(He)影(Ying)响(Xiang)？(?)答(Da)：(?)《(?)铁(Tie)路(Lu)隧(Sui)道(Dao)二(?)次(Ci)衬(Chen)砌(Qi)预(Yu)防(Fang)拱(Gong)顶(Ding)空(Kong)洞(Dong)实(Shi)施(Shi)意(Yi)见(Jian)》(?)（(?)工(Gong)管(Guan)桥(Qiao)隧(Sui)函(Han)[2015]199号(Hao)）(?)，(?)其(Qi)注(Zhu)浆(Jiang)工(Gong)艺(Yi)就(Jiu)要(Yao)求(Qiu)安(An)装(Zhuang)φ(?)20mm~φ(?)30mm的(De)胶(Jiao)质(Zhi)软(Ruan)管(Guan)或(Huo)PVC管(Guan)，(?)一(Yi)根(Gen)用(Yong)于(Yu)注(Zhu)浆(Jiang)、(?)另(Ling)一(Yi)根(Gen)作(Zuo)为(Wei)排(Pai)气(Qi)管(Guan)，(?)目(Mu)前(Qian)铁(Tie)路(Lu)隧(Sui)道(Dao)施(Shi)工(Gong)图(Tu)一(Yi)般(Ban)也(Ye)要(Yao)求(Qiu)采(Cai)用(Yong)该(Gai)工(Gong)艺(Yi)。(?)因(Yin)此(Ci)，(?)本(Ben)退(Tui)管(Guan)注(Zhu)浆(Jiang)工(Gong)艺(Yi)配(Pei)套(Tao)的(De)纵(Zong)向(Xiang)φ(?)20mm~φ(?)30mmPVC排(Pai)气(Qi)管(Guan)，(?)符(Fu)合(He)铁(Tie)总(Zong)工(Gong)管(Guan)中(Zhong)心(Xin)文(Wen)件(Jian)和(He)设(She)计(Ji)图(Tu)的(De)一(Yi)般(Ban)规(Gui)定(Ding)。(?)五(Wu)、(?)退(Tui)管(Guan)注(Zhu)浆(Jiang)设(She)备(Bei)及(Ji)平(Ping)台(Tai)安(An)装(Zhuang)对(Dui)作(Zuo)业(Ye)台(Tai)架(Jia)及(Ji)二(?)衬(Chen)模(Mo)板(Ban)台(Tai)车(Che)作(Zuo)业(Ye)有(You)什(Shi)么(Me)影(Ying)响(Xiang)吗(Ma)？(?)答(Da)：(?)设(She)备(Bei)安(An)装(Zhuang)需(Xu)要(Yao)在(Zai)二(?)衬(Chen)台(Tai)车(Che)前(Qian)端(Duan)加(Jia)工(Gong)支(Zhi)撑(Cheng)设(She)备(Bei)及(Ji)作(Zuo)业(Ye)的(De)平(Ping)台(Tai)，(?)设(She)备(Bei)在(Zai)平(Ping)台(Tai)安(An)装(Zhuang)后(Hou)可(Ke)以(Yi)升(Sheng)降(Jiang)，(?)升(Sheng)降(Jiang)最(Zui)大(Da)幅(Fu)度(Du)在(Zai)60-70cm,横(Heng)向(Xiang)调(Diao)整(Zheng)幅(Fu)度(Du)在(Zai)±(?)20cm，(?)设(She)备(Bei)安(An)装(Zhuang)位(Wei)置(Zhi)距(Ju)离(Li)二(?)衬(Chen)端(Duan)头(Tou)80~100cm，(?)因(Yin)此(Ci)设(She)备(Bei)安(An)装(Zhuang)不(Bu)会(Hui)影(Ying)响(Xiang)台(Tai)车(Che)定(Ding)位(Wei)等(Deng)常(Chang)规(Gui)作(Zuo)业(Ye)，(?)另(Ling)外(Wai)，(?)注(Zhu)浆(Jiang)退(Tui)管(Guan)过(Guo)程(Cheng)中(Zhong)，(?)应(Ying)将(Jiang)前(Qian)方(Fang)的(De)钢(Gang)筋(Jin)安(An)装(Zhuang)或(Huo)防(Fang)水(Shui)板(Ban)铺(Pu)挂(Gua)台(Tai)架(Jia)推(Tui)靠(Kao)二(?)衬(Chen)台(Tai)车(Che)的(De)退(Tui)管(Guan)注(Zhu)浆(Jiang)设(She)备(Bei)平(Ping)台(Tai)，(?)这(Zhe)样(Yang)才(Cai)有(You)利(Li)于(Yu)退(Tui)管(Guan)时(Shi)人(Ren)工(Gong)拆(Chai)管(Guan)及(Ji)保(Bao)障(Zhang)作(Zuo)业(Ye)人(Ren)员(Yuan)操(Cao)作(Zuo)便(Bian)利(Li)、(?)安(An)全(Quan)。(?)