【文章內容簡介】 ..........................52 基坑涌水事故的應急預案 ......................................................................................................54 基坑大幅變形應急措施 ..........................................................................................................55 鋼支撐失穩(wěn)的應急措施 ..........................................................................................................56 高處墜落事故應急預案 ..........................................................................................................56 周邊建筑物變形、裂縫應急預案 ..........................................................................................57 防臺、防汛應急預案 ..............................................................................................................58 觸電事故應急預案 ..................................................................................................................59 應急物資 ...........................................................................................................................................601附圖 ........................................................................................................................................................611 編制說明 ......................................................................................................................................................4工程概況 ....................................................................................................................................................4工程地質、水文現場環(huán)境 ........................................................................................................................5 下穿隧道基坑四周管線情況 ......................................................................................................6 1 號人行通道基坑四周管線情況 ..............................................................................................6 2 號人行通道基坑四周管線情況 ..............................................................................................6設計情況 ....................................................................................................................................................7 下穿隧道設計概況 ......................................................................................................................7 1 號人行通道設計概況 ............................................................................................................8 2 號人行通道設計概況 ............................................................................................................8 .................................................................................................................................9 計算結果及分析 ..........................................................................................................................94 / 81圍護結構施工 ..........................................................................................................................................12 鉆孔樁施工 ..........................................................................................................................................1鉆孔樁施工方法 .......................................................................................................................12 鉆孔樁工藝流程 ..........................................................................................................................1施工工藝 ...................................................................................................................................1水泥攪拌樁方法及工藝流程 ...........................................................................................................16 水泥攪拌樁施工方法 ..................................................................................................................16 水泥攪拌樁工藝流程 ..................................................................................................................16 水泥攪拌樁施工工藝 ..................................................................................................................1拉森 IV 型鋼板樁施工 ....................................................................................................................17 施工方法 ......................................................................................................................................17 工藝流程 ......................................................................................................................................17 施工工藝 ......................................................................................................................................1鋼支撐施工 ......................................................................................................................................19 鋼支撐體系 ................................................................................................................................19 工藝流程 ...................................................................................................................................19 安裝方法 ....................................................................................................................................20 鋼支撐拆除方案 ........................................................................................................................20 鋼支撐安裝要點 ........................................................................................................................冠梁及混凝土支撐施工 ...................................................................................................................2冠梁及混凝土支撐工藝流程 ...................................................................................................2冠梁及混凝土支撐施工工藝 ...................................................................................................22 掛網噴砼邊坡支護 ..............................................................................................................................2坡面掛網錨噴砼支護施工工藝 ......................................................