【正文】 .... 2 逆作拱墻 ...................................................................................................................... 2 放坡 ............................................................................................................................. 2 本設計的主要內(nèi)容及設計原則 .................................................................................... 2 設計內(nèi)容 ...................................................................................................................... 2 設計原則 ...................................................................................................................... 3 第二章 工程地質(zhì) 資料及 概況 .................................................................................................. 4 工程規(guī)模 ........................................................................................................................ 4 現(xiàn)場概況 ........................................................................................................................ 4 工程地質(zhì) 條件 ................................................................................................................ 4 地形地貌 ...................................................................................................................... 4 氣象條件 ...................................................................................................................... 5 場地土層 ...................................................................................................................... 5 水文地質(zhì) 條件 ................................................................................................................ 6 基坑側(cè)壁安全等級 ........................................................................................................ 6 第三章 基坑支護方案比選 .................................................................................................... 7 基坑環(huán)境條件 ................................................................................................................ 7 支護結(jié)構(gòu)選型 ................................................................................................................ 7 .................................................................................................................. 7 噴錨網(wǎng)支護 ................................................................................................................. 9 排樁支護 ....................................................................................................................10 土層錨桿設計參數(shù) ......................................................................................................12 第四章 基坑支護設計計算 .................................................................................................. 14 河南理工大學本科畢業(yè)論文（設計） 目錄 IV 支護設計計算方法 ...................................................................................................... 14 土 質(zhì)計算參數(shù) ..............................................................................................................14 計算區(qū)段劃分 ..............................................................................................................14 計算方法 .....................................................................................................................15 土壓力系數(shù)計算 ...........................................................................................................15 AB、 DA 段支護結(jié)構(gòu)設計計算 ..................................................................................... 15 土壓力系數(shù)計算 ...........................................................................................................15 各土層土壓力計算： ....................................................................................................16 排樁嵌固深度計算 .......................................................................................................17 排樁內(nèi)力與配筋計算 ....................................................................................................20 錨桿設計計算 ..............................................................................................................22 穩(wěn)定性驗算 ..................................................................................................................25 BC、 CD 段支護結(jié)構(gòu)的設計計算 ................................................................................. 30 土壓力系數(shù)計算 ...........................................................................................................32 各土層土壓力計算 .......................................................................................................33 開挖 .........................................................................................35 開挖 ............................................................................................36 排樁嵌固深度 ..............................................................................................................38 排樁內(nèi)力計算 ..............................................................................................................38 樁身配筋計算 ...............................................................................................................40 錨桿設計計 算 ..............................................................................................................41 穩(wěn)定性驗算 ..................................................................................................................43 第五章 基坑降水計算 ............................................................................................................ 50 基坑降水 ...................................................................................................................... 50 降水的意義 ..................................................................................................................50 降水的方法 .............................................................................................................