.精选范本SYC/ZY/GCB06-1中铁隧道集团一处有限公司份号：三导洞法开挖施工作业指导书编号：SYC/ZXSGFA/20□□—□□拟制：日期：年月日校对：日期：年月日初审：（公司工程部工程师）日期：年月日审核：（公司工程部部长）日期：年月日批准：（公司总工程师）日期：年月日目录TOC\o"1-3"\h\uHYPERLINK\l"_Toc341520300"一、编制目的PAGEREF_Toc341520300\h1HYPERLINK\l"_Toc341520301"二、编制依据PAGEREF_Toc341520301\h1HYPERLINK\l"_Toc341520302"三、适用范围PAGEREF_Toc341520302\h1HYPERLINK\l"_Toc341520303"四、施工工艺流程PAGEREF_Toc341520303\h1HYPERLINK\l"_Toc341520304"五、施工方法及要求PAGEREF_Toc341520304\h3HYPERLINK\l"_Toc341520305"5.1施工准备PAGEREF_Toc341520305\h3HYPERLINK\l"_Toc341520306"5.1.1技术准备工作PAGEREF_Toc341520306\h3HYPERLINK\l"_Toc341520307"5.1.2现场施工准备PAGEREF_Toc341520307\h4HYPERLINK\l"_Toc341520308"5.2施工方法及要求PAGEREF_Toc341520308\h4HYPERLINK\l"_Toc341520309"5.2.1三导洞法施工工序PAGEREF_Toc341520309\h4HYPERLINK\l"_Toc341520310"5.2.2侧导洞施工PAGEREF_Toc341520310\h5HYPERLINK\l"_Toc341520311"5.2.3正洞施工PAGEREF_Toc341520311\h5HYPERLINK\l"_Toc341520312"5.3超前支护PAGEREF_Toc341520312\h5HYPERLINK\l"_Toc341520313"5.3.1施工工艺PAGEREF_Toc341520313\h6HYPERLINK\l"_Toc341520314"5.3.2施工方法PAGEREF_Toc341520314\h6HYPERLINK\l"_Toc341520315"5.4开挖PAGEREF_Toc341520315\h8HYPERLINK\l"_Toc341520316"5.4.1爆破开挖PAGEREF_Toc341520316\h8HYPERLINK\l"_Toc341520317"5.4.2特殊情况下针对性开挖措施PAGEREF_Toc341520317\h9HYPERLINK\l"_Toc341520318"5.5支护体系施工PAGEREF_Toc341520318\h9HYPERLINK\l"_Toc341520320"5.5.1找顶与初喷PAGEREF_Toc341520320\h10HYPERLINK\l"_Toc341520321"5.5.2钢拱架PAGEREF_Toc341520321\h10HYPERLINK\l"_Toc341520322"5.5.3钢筋网PAGEREF_Toc341520322\h11HYPERLINK\l"_Toc341520323"5.5.4锚杆PAGEREF_Toc341520323\h11HYPERLINK\l"_Toc341520324"5.5.5喷射混凝土PAGEREF_Toc341520324\h13HYPERLINK\l"_Toc341520325"5.5.6锁脚锚杆(管)施工PAGEREF_Toc341520325\h14HYPERLINK\l"_Toc341520326"5.5.7临时支撑施工PAGEREF_Toc341520326\h15HYPERLINK\l"_Toc341520327"5.5.8仰拱初期支护PAGEREF_Toc341520327\h15HYPERLINK\l"_