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类别:资料发布时间:2022-11-11
施工方法3.1基面处理(1)铺设防水层之前应对基面(初期支护表面)的渗漏水、外露的突出物及表面凹凸不平处进行检查处理。渗漏水处采用注浆堵水或排水盲管将水引入侧沟,保持基面无明显渗漏水。对初期支护混凝土表面外露的锚杆头,钢筋尖头等硬物割除。(2)对钢筋网等凸出部分,先切断后用锤铆平抹砂浆素灰。对有凸出的管道时,用砂浆抹平。对锚杆有凸出部位时,螺头顶预留5mm切断后,用塑料帽处理。(3)净空检查用断面仪进行测量,测量班检查初支断面是否满足设计尺寸,每板衬砌纵向每1米检测一个断面,如不满足设计净空要求时,则加密检查,并对侵限部分严格按要求进行处理。初期支护表面应平整,无空鼓、裂缝、松酥。3.2盲管设
标签: 岩土技术交底
类别:资料发布时间:2023-12-20
引 言········································································ 1 1 范围·······································································2 2 术语·······································································3 3 一般要求···············································
标签: 消防工程