【正文】 目 錄1 編制依據(jù) ......................................................................................................................５ 國家現(xiàn)行有關(guān)規(guī)范 ...........................................................................................................５ 尚都國際中心招標文件及有關(guān)技術(shù)文件 .......................................................................５2 工程概況 ......................................................................................................................６ 工程概況 ...........................................................................................................................６ 場地工程地質(zhì)和水文地質(zhì)條件 .......................................................................................６ 工程地質(zhì)條件 ...........................................................................................................６ 水文地質(zhì)條件 ...........................................................................................................７ 工程特點、難點及主要對策 ...........................................................................................７3 基坑降水設(shè)計 ...............................................................................................................８ 基坑降水目的 ...................................................................................................................８ 降水條件分析 ...................................................................................................................８ 降水設(shè)計計算 ...................................................................................................................８ 設(shè)計結(jié)果 .......................................................................................................................１０ 特殊情況處理 ...............................................................................................................１０ 槽壁滲水 .....................................................................................................................１０ 電梯井、集水坑滲水 .................................................................................................１０ 基坑周邊建筑物不均勻沉降處理 ...............................................................................１０4 基坑支護設(shè)計 ...........................................................................................................１０ 基坑支護方案確定 .......................................................................................................１０ 土層參數(shù)取值 ...............................................................................................................１１ 基坑東側(cè)地層參數(shù) .....................................................................................................１１ 基坑南區(qū)西側(cè)地層參數(shù) .............................................................................................１１ 基坑其它部位地層參數(shù) .............................................................................................１２ (BC 段) ..............................................................................................１２ 護坡樁設(shè)計 .................................................................................................................１２ 錨桿設(shè)計 .....................................................................................................................１２ (XZ 段) ..........................................................................１２ 護坡樁設(shè)計 .................................................................................................................１２ 錨桿設(shè)計 .....................................................................................................................１３ (CD、STW 段 )..........................................................................................１３ 護坡樁設(shè)計 .................................................................................................................１３１ 錨桿設(shè)計 .....................................................................................................................１３ (PQRS 段) ..........................................................................................１３ 護坡樁設(shè)計 .................................................................................................................１３ 錨桿設(shè)計 .....................................................................................................................１３ (MNP)段 ............................................................................................１４ 護坡樁設(shè)計 .................................................................................................................１４ 錨桿設(shè)計 .....................................................................................................................１４ (DE)段 ...............................................................................................１４ 護坡樁設(shè)計 .................................................................................................................１４ 錨桿設(shè)計 .....................................................................................................................１５ (FG)段 ...................................................................................１５ 護坡樁設(shè)計 .................................................................................................................１５ 錨桿設(shè)計 .....................................................................................................................１５ (HJ) 段 ..............................................................................................１５ 護坡樁設(shè)計 ...............................................................................................................１６ 錨桿設(shè)計 ...................................................................................................................１６ 土釘支護設(shè)計 .............................................................................................................１６ 冠梁設(shè)計 .....................................................................................................................１６ 樁間土支護設(shè)計 .......................................................................................................