深基坑支護(鋼管斜撐)與土方開挖施工組織方案(留存版)

　　

【正文】 度劃分為松散卵石（N120 擊數≤4 擊）、稍密卵石（ 4 擊﹤N120 擊數≤7 擊）、中密卵石（7 擊﹤N120 擊數≤10 擊）3 個亞層，在剖面圖中分別用( ⑥1)、(⑥2)、(⑥3))表示。裂隙發(fā)育，含鐵錳質結核及鈣質結核，充填有大量條帶狀灰白色粘土。 目 錄第一章 編制說明 ......................................................................................................................................................1 編制依據 ............................................................................................................................................................1 編制說明 ............................................................................................................................................................1 編制原則 ............................................................................................................................................................2第二章 工程概況 ......................................................................................................................................................3 工程概述 ............................................................................................................................................................3 地形地貌及周邊環(huán)境 ........................................................................................................................................3 工程地質及水文地質 ........................................................................................................................................4 設計概況 ............................................................................................................................................................5第三章 施工管理 ....................................................................................................................................................19 工程管理目標 ..................................................................................................................................................19 施工組織機 構 ..................................................................................................................................................19 施工技術管理 ..................................................................................................................................................22 施工組織協(xié)調 ..................................................................................................................................................23第四章 施工總體部署 ............................................................................................................................................25 工程階段劃分 ..................................................................................................................................................25 施工順序 ..........................................................................................................................................................25 施工部署 ..........................................................................................................................................................26第五章 施工準備 ....................................................................................................................................................27 技術準備 ..........................................................................................................................................................27 現(xiàn)場準備 ..........................................................................................................................................................27 主要勞動力計劃 ..............................................................................................................................................27 主要施工機械設備計劃 ..................................................................................................................................28 施工用水、電計劃 ...........................................................................................................................................29第六章 主要施工方法及措施 ................................................................................................................................31 土方開挖 ..........................................................................................................................................................31 旋挖樁施工 ......................................................................................................................................................34 冠梁（腰梁）施工 ..............................................................................................................................................45 預應力錨索施工方法 ......................................................................................................................................48 樁間及邊坡支護結構施工 ..............................................................................................................................52 鋼管斜撐結構施工 ..........................................................................................................................................53 管井降水施工 ..................................................................................................................................................54第七章 施工總平面布置 ........................................................................................................................................55第八章 工程進度計劃 ............................................................................................................................................55第九章 基坑監(jiān)測 ....................................................................................................................................................56 變形監(jiān)測控制值 ..............................................................................................................................................56 平面及高程基準點 ......................................................................................................