【正文】 ur country’s soft soil mainly distribute coastal areas、 inland plain、 basin、 valley etc. Along with the growth of national economy, more and more engineerings need to be built on the weak foundation, but the loading ability of soft land is low, after carrying a lotus ,the foundation transform greatly, easily produce structure crack of building, and even generate steady break,so we must carry on a special processing on soft land. The purpose of usually processing soft land is for the sake of weaky foundation, assuring foundation of stability, lowering the pressibility of weak foundation, and decreasing foundation of sink to decline to sink to decline with asymmetry, preventing from vibrate liquefaction etc. KEYWORD: soft soil foundation, the foundation handles, weak foundation 安徽理工大學(xué)畢業(yè)設(shè)計(jì) 目錄 1 工程概述 .............................................................................................................. 1 軟土地基的地質(zhì)情況 ...................................................................................... 1 設(shè)計(jì)要求 .......................................................................................................... 1 設(shè)計(jì)依據(jù) .......................................................................................................... 1 設(shè)計(jì)內(nèi)容 .......................................................................................................... 2 2 軟基加固設(shè)計(jì)方案 .............................................................................................. 3 工程特點(diǎn)與針對(duì)性措施 .................................................................................. 3 工程特點(diǎn) ................................................................................................ 3 針對(duì)性措施 ............................................................................................ 3 插板超載預(yù)壓方案 .......................................................................................... 3 方案 1 ..................................................................................................... 3 方案 2 ..................................................................................................... 4 方案設(shè)計(jì)附圖 .................................................................................................. 4 施工總平面布置圖 ................................................................................ 4 圍堰施工平面布置圖 ............................................................................ 4 排水盲溝平面布置圖 ............................................................................ 4 施工保護(hù)措施 .................................................................................................. 4 3 方案 1 設(shè)計(jì)計(jì)算 .................................................................................................. 9 固結(jié)度及沉降計(jì)算方法 .................................................................................. 9 沉降計(jì)算方法 ........................................................................................ 9 固結(jié)度、沉降計(jì)算結(jié)果 ................................................................................ 10 第三次吹填前的固結(jié)度和沉降 .......................................................... 10 第三次吹填后的固結(jié)度與沉降計(jì)算 .................................................. 11 地基承載力與加載速率計(jì)算 ........................................................................ 14 計(jì)算方法 .............................................................................................. 14 計(jì)算結(jié)果 .............................................................................................. 15 圍堰穩(wěn)定性計(jì)算 ............................................................................................ 15 4 方案 2 設(shè)計(jì)計(jì)算 ................................................................................................ 17 固結(jié)度及沉降計(jì)算方法 ................................................................................ 17 固結(jié)度計(jì)算方法 .................................................................................. 17 沉降計(jì)算方法 ...................................................................................... 18 固結(jié)度、沉降計(jì)算結(jié)果 ................................................................................ 19 第三次吹填前的固結(jié)度和沉降 .......................................................... 19 安徽理工大學(xué)畢業(yè)設(shè)計(jì) 第三次吹填后的固結(jié)度與沉降計(jì)算 .................................................. 20 固結(jié)度計(jì)算結(jié)果 .................................................................................. 20 地基承載力與加載速率計(jì)算 ........................................................................ 21 計(jì)算方法 .............................................................................................. 21 計(jì)算結(jié)果 .............................................................................................. 22 圍堰穩(wěn)定性計(jì)算 ............................................................................................ 22 5 方案 1 和方案 2 比較及存在問題的建議 ........................................................ 25 6 施工監(jiān)測(cè)和檢測(cè) ................................................................................................ 26 施工監(jiān)測(cè)和檢測(cè)目的 .................................................................................... 26 施工監(jiān)測(cè)和檢測(cè)項(xiàng)目 .................................................................................... 26 地基最終變形和固結(jié)度的推算 .................................................................... 26 施工監(jiān)測(cè)點(diǎn)及檢測(cè)點(diǎn)附圖 ............................................................................ 26 7 施工組織管理機(jī)構(gòu) ............................................................................................ 29 現(xiàn)場(chǎng)管理機(jī)構(gòu) ................................................................................................ 29 施工組織機(jī)構(gòu)圖 ............................................................................................ 29 項(xiàng)目經(jīng)理部主要成員 .................................................................................... 30 8 施工方法 ............................................................................................................ 31 土堤圍堰施工方法 .