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隧道施工中不良地质及风险地段的施工措施

文章来源:未知 发布时间:2018-03-22 09:40:12 浏览数: 121次

  1.YANRONGFAYUDIDUANJIFUSHUIDUANCENGDUANSUIDAO

  对于岩溶发育地段及富水断层段隧道,应依据并系统分析现阶段勘探资料,细石混凝土泵厂家介绍说:作好注浆加固、防排水系统及相应衬砌的设计,施工中根据超前地质预报和施工开挖对不良地质的影响及监控量测资料进行进一步评价,以便开展信息化施工。

  (1)ZHUJIANG

  ① ZHUJIANGFANGAN、FANGSHIJISHIYONGTIAOJIAN

  ZHUJIANGFANGSHIBAOKUOKAIWAQIANYUZHUJIANG、KAIWAHOUWEIYANZHUJIANG、BUZHUJIANG、JUBUZHUJIANGDENGSIZHONGFANGSHI,CAIYONGJUTIZHUJIANGFANGANGENJUGONGCHENGDIZHI、SHUIWENDIZHITIAOJIANXUANYONG。

  ② ZHUJIANGGONGYI

  预注浆孔开孔直径不小于110mm,终孔直径不小于90mm;钻孔和注浆顺序应由外向内,细石混凝土泵厂家介绍说:同一圈孔间隔施工;岩层破碎容易造成坍孔时,应采用前进式注浆,否则采用后退式注浆;孔口设3mφ108注浆管,埋设牢固,并有良好的止浆设施。注浆压力应为地下水压的1.2~1.5倍。注浆泵最大压力应不小于地下水压的1.5~2.0倍。

  JINGXIANGZHUJIANGKAIKONGZHIJINGBUXIAOYU50mm,ZHONGKONGZHIJINGBUXIAOYU45mm;ZUANKONGHEZHUJIANGSHUNXUYINGYOUXIAXIANGSHANG,TONGYIQUANKONGJIANGESHIGONG;

  GUZHUANGCHUSHUIDIAN、LIEXIMIANCHUSHUIDIANDEZHUJIANGDUSHUI,CAIYONGJUBUZHUJIANG。KONGKOUJIANJU1~1.5m,DANKONGKUOSANBANJING2m,ZHUJIANGKONGYUCHUSHUILIEXIMIANJINLIANGDAJIAODUXIANGJIAO,ZHUJIANGYALIDAYU0.5Mpa。ZHUJIANGYALIJIAODASHI,YINGXIANZUANYINSHUIKONGXIEYA,ZAIDUILIEXIZHUJIANG,ZUIHOUYONGPENGZHANGKUAIYINGSHUINIDUIYINSHUIKONGJINXINGFENGDUCHULI。

  (2)ZHIHUJIEGOUSHEJI

  YANRONGFAYUDIDUANJIFUSHUIDUANCENGDUANSUIDAOGENJUSHUIYALI、SHUILIANGLIANGCE、JIANKONGLIANGCEDENGZILIAOPANBIESHIFOUXUYAOSHEZHICHENGSHOUSHUIYAJIEGOU。CHENGSHOUSHUIYAJIEGOUCHUQIZHIHUCAIYONGGANGXIANWEIHUNNINGTU,ERCICHENQICAILIAOCAIYONGC35GANGJINHUNNINGTU,FUHEJIEGOUANCHENGSHOU0.3~2.0MpaJINGSHUIYASHEJI,NEIJINGKONGYULIU20cmBUQIANGKONGJIAN(DANGSHIGONGZHONGYUCESHUIYAMINGQUESHI,BUYULIUBUQIANGKONGJIAN)。DANGTONGGUOZHUJIANGJIAGUHOU,YONGSHUILIANGRENGJIAODA,SHICESHUIYADAYUSHEJISHUIYASHI,KETONGGUODIAOZHENGCHENQIGANGJINBUZHI,HUOLIYONGCHENQIJIEGOUDIAOZHENGKONGJIANYICIGUANZHUERCICHENQI,YITIGAOCHENQISHOUJINGSHUIYALIDENENGLI。DANGCHENQIYICHENGSHOUSHEJIJINGSHUIYALI,SUIZHESHIJIANYOUYUDIXIASHUIBIANHUADENGYUANYINYINQICHENQICHENGSHOUHEZAIDEGAIBIANSHI,KEKAOLVDUICHENQIBUQIANG。

  2.(YEYANQI)WASIDIDUAN

  YEYANQISHICONGNIYEYANCENGXIZHONGKAICAICHULAIDETIANRANQI,WEIYUANSENIYEYANHUOGAOTANNIYEYANZHONG,ZHUTISHANGYIXIFUCUNZAIYUNIYEYANCENGXIZHONG。

  SHIGONGZHONGKECAIQURUXIAFUZHUCUOSHI:

  (1)SHIGONGYINGJIAQIANGDUIHANTANZHIYANCENGDIDUANJIAQIANGCHAOQIANDIZHIYUCEYUBAO、JIAQIANGWASIJIANCE,YOUXIAOYUFANGGONGCHENGFENGXIAN。JIAQIANGTONGFENG,YIXISHIWASINONGDU、JIANSHAOWASIJIJU,YOUXIAOXIAOCHUQIDUIGONGCHENGWEIHAI,FANGZHIZHONGDAZAIHAIFASHENG,QUEBAOSUIDAOSHIGONGHEYUNYINGANQUAN。

  (2)SHIGONGSHIYINGFANGXIAOPAO,DUANJINCHI,JIANSHAODUIWEIYANDERAODONG,BIMIANCHANSHENGXINDELIEWENHEQITABUWENDINGYINSU。

  (3)SHIGONGQIJIAN,YINGJIANLIWASITONGFENGJIANKONG、JIANCEDEZUZHIXITONG,CEDINGQIXIANGCANSHU、WASINONGDU,FENGSU、FENGLIANGDENGCANSHU。

  (4)GENJUCHAOQIANDIZHIYUCEYUBAODEJIEGUO,GENJUXIANCHANGQINGKUANG,RUQUEDINGWEIWASISUIDAO,XUYAOJISHITONGZHISHEJIFANG,RUANWASIGONGQUSHEJIZEXUYAOANYIXIACUOSHIKAOLV:

  ①DIWASISUIDAOXUJINXINGRENGONGJIANCE,PEIBEISHOUCHISHIWASIJIANCEYI。

  ②WASISUIDAOGEGONGQUZAIGUANTONGQIAN,YINGZUOHAOFENGLIUDIAOZHENGDEZHUNBEIGONGZUO。GUANTONGHOU,BIXUDIAOZHENGTONGFENGXITONG,FANGZHIWASICHAOXIAN,DAITONGFENGXITONGFENGLIUWENDINGHOU,FANGKEHUIFUGONGZUO。

  ③GEKAIWAGONGZUOMIANBIXUCAIYONGDULITONGFENG,YANJINRENHELIANGGONGZUOMIANZHIJIANCHUANLIANTONGFENG。

  ④SHIGONGZHONGDONGNEIGECHUWASINONGDUYINGBAOZHENGZAI0.5%YIXIA。

  ⑤WASISUIDAOSHIGONGZHONGFANGZHIWASIJIJUDEFENGSUBUYIXIAOYU1m/s。

  3.XIACHUANJIYOUGAOSUGONGLU

  (1)CHAOQIANGUANPENGSHIGONG

  ZHANGGUANPENGWEICHAOQIANYUZHIHU,SUIDAOANDONGKAIWAZHIQIANWANCHENG;GENJUDIMIANCHENJIANGKONGZHIYAOQIU,WEILETIGAODAOGUANDEKANGWANNENGLI,KEZAIGANGGUANJIGANGHUAGUANNEISHEZHIGANGJINLONGBINGGUANZHUSHUINISHAJIANG;ZHANGGUANPENGZHUJIANGCAIYONGSHUINIJIANGYE(SHUINIJIANGYESHUIHUIBI:1:1、ZHUJIANGYALI:0.5~2.0MPa),ZHUJIANGQIANYINGJINXINGXIANCHANGZHUJIANGSHIYAN,GENJUSHIJIQINGKUANGDIAOZHENGZHUJIANGCANSHU,QUDEGUANPENGZHUJIANGSHIGONGJINGYAN,ZHUJIANGJIESHUHOUYONGM10SHUINISHAJIANGCHONGTIANGANGGUAN,YIZENGQIANGGUANPENGQIANGDU,GENJUSHIJIXUYAOKEZAIGANGGUANNEISHEZHIGANGJINLONG,BINGGUANZHUSHUINISHAJIANG;JINXINGGUANPENGSHIGONGQIAN,YINGGENJUSHIGONGSHEBEIHEWEIYANTIAOJIANQUEDINGSHIFOUYAOGUANPENGGONGZUOSHIHESHIGONGZHIJIANGQIANG;GANGGUANPENGXUANSHEJIWEIZHISHIGONG,ZHUYIYUNYONGCEXIEYIJINXINGZUANKONGPIANXIEDUCELIANG,YANGEKONGZHIGUANPENGDASHEFANGXIANG,BINGZUOHAOMEIGEZUANKONGDIZHIJILU;GUANPENGSHIGONGSHI,YINGDUIGANGGUANZHUYAOCAILIAOJINXINGCAIZHIJIANYAN;XUANYONGZUANJISHOUXIANYINGSHIHEZUANKONGSHENDUJIKONGJINGDEYAOQIU,ZUANJIYAOQIUPINGWENLINGHUO,NENGZAISHUIPINGFANGXIANG360°FANWEINEIZUANKONG,SHIZUANSHIYINGYOUDAOXIANGJIA;SHIGONGQIJIANYINGZUNSHOUSUIDAOSHIGONGJISHUANQUANGUIZEHEZUANYANZHUJIANGZUOYECAOZUOGUIZE。

  (2)KAIWAZHIHU

  SUIDAOSHIGONGYINGJIANCHI“RUOBAOPO、DUANJINCHI、QIANGZHIHU、ZAOFENGBI、QINLIANGCE”DEYUANZE;KAIWAFANGSHIJUNCAIYONGRUOBAOPOHUORENGONGKAIWA,BAOPOSHIYANGEKONGZHIPAOYANSHENDUJIZHUANGYAOLIANG;ZHUTIJIEGOUCHUQIZHIHUGANGJIAYINGGENJUGONGFADESHEZHIQINGKUANGDUIQIFENJIEJINXINGSHIDANGDIAOZHENG;GONGXUBIANHUACHUZHIGANGJIA(HUOLINSHIGANGJIA)YINGSHESUOJIAOGANGGUAN,QIEBIXUDUISUOJIAOGANGGUANJINXINGZHUJIANG,YIQUEBAOGANGJIAJICHUWENDING;GANGJIAZHIJIANZONGXIANGLIANJIEGANGJINYINGANYAOQIUSHEZHI,JISHISHIZUOBINGLIANJIELAOGU;SHIGONGGUOCHENGZHONGMEICICHAICHULINSHIZHIHUSHIYINGJIAQIANGLIANGCE,YICICHAICHUZHANGDUBUNENGCHAOGUO10m,YIQUEBAOSHIGONGANQUAN;LINSHIGANGJIADECHAICHUYINGDENGDONGSHENZHUTIJIEGOUCHUQIZHIHUSHIGONGWANBIBINGWENDINGHOU,FANGKEJINXING;SHIGONGZHONG,YINGANYOUGUANGUIFANJIBIAOZHUNTUDEYAOQIU,JINXINGJIANKONGLIANGCE,JISHIFANKUIJIEGUO,FENXIDONGSHENJIEGOUDEWENDING,WEIZHIHUCANSHUDEDIAOZHENG、GUANZHUERCICHENQIDESHIJITIGONGYIJU。

  (3)JIANKONGLIANGCE

  1)JIANKONGLIANGCEDEMUDE

  WEIQUEBAOSHIGONGANQUANJIJIEGOUDEZHANGQIWENDINGXING, YANZHENGZHIHUJIEGOUXIAOGUO,QUERENHUODIAOZHENGZHIHUCANSHUHESHIGONGFANGFA, QUEDINGERCICHENQISHIZUOSHIJIAN, JIANKONGGONGCHENGDUIZHOUWEIHUANJINGYINGXIANG,JILEILIANGCESHUJU、WEIXINXIHUASHEJIYUSHIGONGTIGONGYIJU。BENDUANSUIDAOANZHAOJIANKONGLIANGCESHEJIJI《TIELUSUIDAOJIANKONGLIANGCEJISHUGUICHENG》DENGXIANGGUANGUIDINGJINXINGSHIGONGJIANKONGLIANGCE,LEJIEWEIYANWENDINGZHUANGTAIHEZHIHU、CHENQIKEKAOCHENGDU,QUEBAOSHIGONGANQUANJIJIEGOUDEZHANGQIWENDINGXING,WEIWEIYANJIBIEBIANGENG、CHUQIZHIHUHEERCICHENQIDECANSHUDIAOZHENGTIGONGYIJU。

  BENDUANSUIDAOJUNJINXINGJIANKONGLIANGCESHEJI,CHUBICEXIANGMUWAI,GENJUGONGCHENGDIZHI、SHUIWENDIZHITIAOJIANDUIXUANCEXIANGMUTICHULIANGCEYAOQIU。SUIDAODIZHITIAOJIANDEFUZAXINGHESUIDAOJIEGOUDETEXING,YAOQIUZAISHIGONGJIEDUANGENJUCHAOQIANYUCEYUBAO、SHIGONGJIANKONGLIANGCEZILIAODEFENXIDUISHEJIJINXINGXIUZHENG,JIANKONGLIANGCEZILIAOSHIDIAOZHENGZHIHUJIEGOU、SHIGONGFANGFADENGSHEJIZILIAODEYIJU。SHIGONGDANWEIYINGGENJUJIANKONGLIANGCESHEJIBIANZHIJIANKONGLIANGCESHISHIXIZE,BAOSONGJIANLI、YEZHUPIZHUNHOUSHISHI,BINGYINGCHENGLIXIANCHANGJIANKONGLIANGCEXIAOZU,JIANLIXIANGYINGDEZHILIANGBAOZHENGTIXI,JIANKONGLIANGCERENYUANYAOQIUXIANGDUIWENDING,QUEBAOJIANKONGLIANGCEGONGZUODELIANXUXING,JIANKONGLIANGCEXIAOZUFUZEJISHIJIANGJIANKONGLIANGCEXINXIFANKUISHIGONG、SHEJIDANWEI,DUISHEJIJINXINGXIUZHENG。

  2)JIANKONGLIANGCESHEJINEIRONG

  JIANKONGLIANGCEKEFENWEIBICEXIANGMUHEXUANCEXIANGMULIANGLEI。BICEXIANGMUZAICAIYONGXINAOFAXIUJIANDESUIDAOZHONGBIXUJINXING,XUANCEXIANGMUYINGGENJUWEIYANXINGZHI、SUIDAOMAIZHISHENDU、KAIWAFANGSHIDENGTIAOJIANQUEDING。

  BICEXIANGMUBAOKUOXIABIAOSUOLIEDEYIXIENEIRONG:

  BICEXIANGMUBIAO

  XUANCEXIANGMUBAOKUOYIXIAYIXIEXIANGMU:

  XUANCEXIANGMUBIAO

  3)JIANKONGLIANGCEDUANMIANJICEDIANBUZHIYUANZE

  DIBIAOCHENJIANGCEDIANYINGZAISUIDAOKAIWAQIANBUSHE,DIBIAOCHENJIANGCEDIANHESUIDAONEICEDIANYINGBUZHIZAITONGYIDUANMIANLICHENG,DIBIAOCHENJIANGCEDIANZONGXIANGJIANJUWEI5m,DIBIAOCHENJIANGCEDIANHENGXIANGJIANJUWEI2~5m,ZAISUIDAOZHONGXIANFUJINCEDIANYINGSHIDANGJIAMI。

  GONGDINGXIACHENCEDIANHEJINGKONGSHOULIANCEDIANYINGBUZHIZAITONGYIDUANMIANSHANG,CEDIANZONGXIANGJIANJU5m,GONGDINGXIACHENCEDIANYUANZESHANGSHEZHIZAIGONGDINGZHOUXIANFUJIN,DANGSUIDAOKUADUJIAODASHI,YINGJIEHESHIGONGFANGFAZAIGONGBUZENGSHECEDIAN,XIACHUANGAOSUGONGLUDUANSUIDAOGONGDINGXIACHENCEDIANBUZHI3GE(GONGDINGZHONGYANG、ZUOYOUCEGONGYAOGEYIGE)。ZAIZUIDAKUADUCHU、GONGYAOSHEZHILIANGTIAOSHUIPINGSHOULIANCEXIAN。

  4)JIANKONGLIANGCEPINLV

  ANCEDIANJUKAIWAMIANDEJULIJIWEIYISUDUFENBIEZHIDINGLIANGCEPINLV,JUTIRUXIA:

  ANJUKAIWAMIANJULIQUEDINGDEJIANKONGLIANGCEPINLV

  ANWEIYISUDUQUEDINGDEJIANKONGLIANGCEPINLV

  5)JIANKONGLIANGCEKONGZHIJIZHUNJIGUANLIDENGJI

  监控量测控制基准应根据地质条件、隧道施工安全性、细石混凝土泵厂家介绍说:隧道结构的长期稳定性以及周围建(构)筑物特点和重要性等因素制定,包括隧道内位移、地表沉降、爆破振动等。

  WEIYIKONGZHIJIZHUNGENJUCEDIANJUKAIWAMIANDEJULI,YOUCHUQIZHIHUJIXIANXIANGDUIWEIYIQUEDING。

  JIANKONGLIANGCEWEIYIKONGZHIJIZHUN

  GENJUWEIYIKONGZHIJIZHUN,WEIYIGUANLIANSANGEDENGJIZHIDING。

  JIANKONGLIANGCEWEIYIGUANLIDENGJI

  XIACHUANGAOSUGONGLUDIDUANDIBIAOBIANXINGKONGZHIBIAOZHUNWEI:DANGDIBIAOLONGQIZHI≤10mm、CHENJIANGZHI≤30mm,SUIDAOZHENGCHANGSHIGONG;DANGDIBIAOLONGQIZHIWEI10~15mm,CHENJIANGZHIWEI30~40mmSHI,JIAMIJIANCEPINLV,MIQIEGUANZHUSHIGONGGUOCHENG;DANGDIBIAOLONGQIZHI≥15mm,CHENJIANGZHI≥40mm,TINGZHISHIGONGJUEJIN,JINXINGSHIGONGDIAOCHA,QIDONGJINJIYUAN。DANGDIBIAOBIANXINGJIANCELIANXUSANTIAN≥3mmSHI,YINGJIAMIJIANCE。

  6)JIANKONGLIANGCEDESHUJUFENXIJIXINXIFANKUI

  ①ZHANGZIMIANDIZHIZHUANGKUANGBIAO、ZHOUBIANSHOULIAN、GONGDINGXIACHEN、DIBIAOXIACHENCESHISHUJUAN《TIELUSUIDAOJIANKONGLIANGCEJISHUGUICHENG》XIANGGUANYAOQIUJILU。

  ②GENJUXIANCHANGLIANGCESHUJUHUIZHIWEIYI--SHIJIANQUXIANHUOSANDIANTU,ZAIWEIYI--SHIJIANQUXIANQUPINGHUANSHIYINGJINXINGHUIGUIFENXI,YITUISUANZUIZHONGWEIYIHEZHANGWOWEIYIBIANHUAGUILV。DANGWEIYI--SHIJIANQUXIANCHUXIANFANWANDIAN,JIWEIYICHUXIANFANCHANGDEJIZHOUZENGJIAXIANXIANG,BIAOMINGWEIYANHEZHIHUYICHENGBUWENDINGZHUANGTAI,YINGJISHISHIZUOERCICHENQI,BIYAOSHIYINGTINGZHIJUEJIN,CAIQUBIYAODEANQUANCUOSHI。

  ③GENJUWEIYIBIANHUASULVPANDUANWEIYANWENDINGZHUANGKUANG,BIANXINGJIBENWENDINGYINGFUHEXIALIETIAOJIAN:SUIDAOZHOUBIANBIANXINGSULVYOUMINGXIANJIANHUANQUSHI;GONGJIAOSHUIPINGXIANGDUIJINGKONGBIANHUASUDUXIAOYU0.2mm/d,GONGDINGXIANGDUIXIACHENSUDUXIAOYU0.15mm/d。

  ④WEIYANJIZHIHUDEWENDINGXINGYINGGENJUKAIWAGONGZUOMIANDEZHUANGTAI、JINGKONGSHUIPINGSHOULIANZHIJIGONGDINGXIACHENLIANGDEDAXIAOHESULVZONGHEPANDUAN,BINGJISHIFANKUIYUSHEJIHESHIGONGZHONG,GENJUSHUIPINGXIANGDUIJINGKONGBIANHUAZHIJINXINGPANDUANSHI,YINGFUHE《TIELUSUIDAOJIANKONGLIANGCEJISHUGUICHENG》DEYOUGUANGUIDING。

  ⑤CELIANGGUOCHENGZHONGRUFAXIANYICHANGXIANXIANGHUOYUSHEJIBUFUSHI,YINGJISHITICHU,YIBIANXIUGAIZHIHUCANSHU。

   
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