贵州小净距隧道洞门端墙混凝土施工技术交底

《贵州小净距隧道洞门端墙混凝土施工技术交底》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。

1、贵阳市东站路第1合同段　　　　　技术交底书隧道洞门端墙混凝土施工技术交底一、设计概况黑垭口隧道为小净距隧道，进口洞门设计为整体式混凝土端墙洞门。端墙混凝土采用C20片石混凝土浇筑，进口洞门浇筑厚度为1.5m，端墙背设置洞顶排水沟，净空为60cm×60cm，厚度为30cm。二、洞门混凝土施工工序施工准备不满足要求测量放线施工平台搭设模板安装满足要求混凝土浇筑施工脱模养护下一循环施工1、施工准备隧道洞门混凝土计划于9月中旬进行隧道出口洞门施工。按照施工材料计划，准备混凝土材料、脚手架及扣件、模板等。施工人员计划包括模板工8

2、人、混凝土施工及养护人员6人。施工主要机械包括：基础开挖使用的挖掘机1台、混凝土输送设备、3台插入式捣固棒、木加工设备1套、用于片石提升的吊车或卷扬机及其它小型工具。施工方法及工艺    1、防排水    洞门土石方开挖前先做好洞顶排水沟、截水沟等地面排水工程totalheavymodelnumber(m)weight(t)1gatedamflatworkdoordoorleaves6.2x2.022.50slidingblock7.0013.00fixedtypewinchopeningandclosingmachi

3、ne2x1005.002electricalequipment2-containingplateworkinggateslotofsluiceanddam6.2x2.0of22.502.004.003flataccessdoorleafofsluiceanddam6.2x2.07.007.00electrichoist12.50slider2x801.001.505.001I50jackedwithelectricalequipment4flatemergencygateslotofsluiceanddam6.2x2.

4、0of22.502.004.005sandspillwaygatedoorleaf1.5x1.511.501.50to3.00sliderscrewhoistelectricalequipment650.002.501sandsluiceworkinggateslotofoverflowdam1.5x1.513.002.002.007waterinlettrashrackgateleaf2.0FixedX3.513.003.003.008waterinletdoorleaf2.0x2.5slider13.003.003

5、.00screwhoist80.003.501.009electricalequipmentworkinggateslotoftheintake2.0x2.513.00...Table1-1themaincharacteristicsofthepenstocknumberitemparametertypecontrollersizeheadalongpipediameterpipelength11hydropowerstationpenstockopen-airexposedpipe,singlepipejointwa

6、tersupply1.3M931m0.8M8.3*2m22hydropowerstationpenstockopen-airexposedpipe,singlepipejointwatersupply1.4m1063.506m0.8M10*2mtable1-2hydropowerstationHydraulicmetalstructuremaincharacteristicstablenumberprojectnamegate,andstoppeddirtgate,anddoor(Gate)slotopeningand

7、closingmachinetracknotesholemouthsize(widexhigh)(MXM)number(sets)designhead(m)supportstypetypesingleheavy(t)totalheavy(t)typetypeopeningandclosingcapacity(KN)head(trip)(m)number(sets)singleheavytotalheavymodelnumber(m)weight(t)1gatedamflatworkdoordoorleaves6.2x2

8、.022.50slidingblock7.0013.00fixedtypewinchopeningandclosingmachine2x1005.002electricalequipment2-containingplateworkinggateslotofsluiceanddam6.2x2.0of22.502.004.003fl