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二级建造师2020市政实务备考知识点:暗挖隧道内加固支护技术

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  ZHIYOUFUCHUCAINENGSHOUHUOCHENGGUO,WEILEZUOHAOKAOQIANDEBEIKAOFUXI,XIAMIANYOUCHUGUOLIUXUEWANGXIAOBIANWEINIJINGXINZHUNBEILE“ERJIJIANZAOSHI2020SHIZHENGSHIWUBEIKAOZHISHIDIAN:ANWASUIDAONEIJIAGUZHIHUJISHU”,CHIXUGUANZHUBENZHANJIANGKEYICHIXUHUOQUGENGDUODEKAOSHIZIXUN!

  二级建造师2020市政实务备考知识点:暗挖隧道内加固支护技术

  暗挖隧道内加固支护技术

  (一)主要材料

  (1)PENSHEHUNNINGTUYINGCAIYONGZAOQIANGHUNNINGTU,QIQIANGDUBIXUFUHESHEJIYAOQIU。HUNNINGTUPEIHEBIYINGGENJUSHIYANQUEDING。YANJINXUANYONGJUYOUJIANHUOXINGJILIAO。KEGENJUGONGCHENGXUYAOCHANYONGWAIJIAJI,SUNINGJIYINGGENJUSHUINIPINZHONG、SHUIHUIBIDENG,TONGGUOBUTONGCHANLIANGDEHUNNINGTUSHIYANXUANZEZUIJIACHANLIANG,SHIYONGQIANYINGZUONINGJIESHIJIANSHIYAN,YAOQIUCHUNINGSHIJIANBUYINGDAYU5min,ZHONGNINGSHIJIANBUYINGDAYU10min。

快乐飞艇客户端  (2)GANGJINWANGCAILIAOYICAIYONGQ235GANG,GANGJINZHIJINGYIWEI6~12mm,WANGGECHICUNYICAIYONG150~300mm,DAJIEZHANGDUYINGFUHEGUIFAN。GANGJINWANGYINGYUMAOGANHUOQITAGUDINGZHUANGZHILIANJIELAOGU。

  (3)GANGGONGJIAYIXUANYONGGANGJIN、XINGGANG、GANGGUIDENGZHICHENG,CAIYONGGANGJINJIAGONGERCHENGGEZHADEZHUJINZHIJINGBUYIXIAOYU18mm。

  (二)格栅加工及安装

  (8)LIANJIEJINZHANGDUYINGWEIGEZHAGONGJIAJIANJU+DAJIEZHANGDU;CAIYONGSHUANGMIANDAJIEHANSHI,DAJIEZHANGDUWEI5d;DANMIANHANDEDAJIEZHANGDUWEI10d。HANJIEZHILIANGYINGFUHESHEJIHEXIANXINGXINGYEBIAOZHUN《GANGJINHANJIEJIYANSHOUGUICHENG》JGJ18—2012DEXIANGGUANYAOQIU。

快乐飞艇客户端  (13)GEZHAJIALIJIANZHUANGYINGFUHEXIALIEYAOQIU:

快乐飞艇客户端  1)GEZHAJIALIZONGXIANGYUNXUPIANCHAYINGWEI±50mm,HENGXIANGYUNXUPIANCHAYINGWEI±30mm,GAOCHENGYUNXUPIANCHAYINGWEI±30mm(BIANHUA)。

  2)GEZHAANZHUANGSHI,JIEDIANBANSHUANJIEJIUWEIHOUYINGBANGHANYUZHUJINTONGZHIJINGDEGANGJIN。DANMIANHANZHANGDUBUXIAOYU10d。

  (三)喷射混凝土

  (1)PENSHEHUNNINGTUSHI,YINGQUEBAOPENSHEJIGONGLIAOLIANXUJUNYUN。ZUOYEKAISHISHI,YINGXIANSONGFENGSONGSHUI,HOUKAIJI,ZAIJILIAO;JIESHUSHI,YINGDAILIAOPENWANHOUZAIGUANJITINGFENG。PENSHEJIZUOYESHI,PENTOUCHUDEFENGYABUDEXIAOYU0.1MPa。PENSHEZUOYEWANBIHUOYINGUZHONGDUANPENSHESHI,YINGXIANTINGFENGTINGSHUI,RANHOUJIANGPENSHEJIHESHULIAOGUANNEIDEJILIAOQINGCHUGANJING。

  (2)HUNNINGTUPENSHEQIANYINGJIANCHAPENSHEJIPENTOUDEZHUANGKUANG,SHIQIBAOCHILIANGHAODEGONGZUOXINGNENG。PENSHESHI,YINGYONGGAOYAFENGQINGLISHOUPENMIAN、SHIGONGFENG,TICHUSHUSONGBUFEN;PENTOUYUSHOUPENMIANYINGCHUIZHI,JULIYIWEI0.6~1.0m。

  (3)PENSHEHUNNINGTUYINGJINGENKAIWAGONGZUOMIAN,YINGFENDUAN、FENPIAN、FENCENG,YOUXIAERSHANGSHUNXUJINXING。HUNNINGTUHOUDUJIAODASHI,YINGFENCENGPENSHE,HOUYICENGPENSHEYINGZAIQIANYICENGHUNNINGTUZHONGNINGHOUJINXING。HUNNINGTUYICIPENSHEHOUDUYIWEI:BIANQIANG70~100mm,GONGBU50~60mm。(BIANHUA)

快乐飞艇客户端  (9)PENSHEHUNNINGTUDEYANGHUYINGZAIZHONGNING2hHOUJINXING,YANGHUSHIJIANYINGBUXIAOYU14d;DANGHUANJINGCHAOSHIYOUSHUISHI,KEGENJUQINGKUANGDIAOZHENGYANGHUSHIJIAN。

  (四)小导管注浆技术详见2K313034条,管棚超前支护见2K313035条。

  (五)锁脚锚杆注浆加固

  (1)SUIDAOGONGJIAOYINGCAIYONGXIEXIANGXIA20°~30°DARUDESUOJIAOMAOGAN(GUAN)SUODING。

  (2)SUOJIAOMAOGAN(GUAN)YINGYUGEZHAHANJIELAOGU,DARUHOUYINGJISHIZHUJIANG。

  (六)初期支护背后注浆

快乐飞艇客户端  (1)SUIDAOCHUQIZHIHUFENGBIHOU,YINGJISHIJINXINGCHUZHIBEIHOUHUITIANZHUJIANG。ZHUJIANGZUOYEDIANYUJUEJINGONGZUOMIANYIBAOCHIZAI5~10mDEJULI。

  (2)BEIHOUHUITIANZHUJIANGGUANZAIGEZHAGONGJIAANZHUANGSHIYIMAISHEYUSUIDAOGONGDING、LIANGCEQIGONGXIANYISHANGDEWEIZHI,BIYAOSHICEQIANGYIKEBUSHE,JIANJUYINGFUHESHEJIYAOQIU。ZHUJIANGGUANYINGYUGEZHAGONGJIAZHUJINHANJIEHUOBANGZHALAOGU,GUANDUANWAILUBUYINGXIAOYU100mm。

  (3)BEIHOUHUITIANZHUJIANGYINGHELIKONGZHIZHUJIANGLIANGHEZHUJIANGYALI。DANGZHUJIANGYALIHEZHUJIANGLIANGCHUXIANYICHANGSHI,YINGFENXIYUANYIN,DIAOZHENGZHUJIANGCANSHU。

  (4)GENJUDICENGBIANXINGDEKONGZHIYAOQIU,KEZAICHUQIZHIHUBEIHOUDUOCIJINXINGHUITIANZHUJIANG。ZHUJIANGJIESHUHOU,YIJINGLEIDADENGJIANCESHOUDUANJIANCEHEGE,BINGYINGTIANXIEHEBAOCUNZHUJIANGJILU。

  (七)隧道内锚杆注浆加固

  MAOGANSHIGONGYINGBAOZHENGKONGWEIDEJINGDUZAIYUNXUPIANCHAFANWEINEI,ZUANKONGBUYIPINGXINGYUYANCENGCENGMIAN,YIYANSUIDAOZHOUBIANJINGXIANGZUANKONG。MAOGANBIXUANZHUANGDIANBAN,DIANBANYINGYUPENSHEHUNNINGTUMIANMITIE。ZUANKONGANSHEMAOGANQIANYINGXIANJINXINGPENSHEHUNNINGTUSHIGONG,KONGWEI、KONGJING、KONGSHENYAOFUHESHEJIYAOQIU,MAOGANLUCHUYANMIANZHANGBUDAYUPENSHEHUNNINGTUDEHOUDU,MAOGANSHIGONGYINGFUHEZHILIANGYAOQIU。

  推荐阅读:

  二级建造师2020市政实务考试知识点:暗挖隧道外的超前加固技术

  二级建造师2020市政实务考试知识点:喷锚暗挖与初期支护

  2020二级建造师市政实务备考知识点:小导管注浆加固技术要点


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  想了解更多二级建造师备考辅导网的资讯,请访问: 二级建造师备考辅导快乐飞艇客户端

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