【正文】 河南理工大學(xué)本科畢業(yè)論文（設(shè)計(jì)） 摘要 I 摘 要 武漢市泰合小區(qū) 3住宅樓，擬建建筑場地的東側(cè)和南側(cè)現(xiàn)為公路，設(shè)置地面荷載為20kPa，北側(cè)和西側(cè)為同小區(qū)其他建筑物 ,基坑深度均大于本設(shè)計(jì)基坑，地面荷載設(shè)為10kPa，擬建住宅樓高度為 80m，基坑深度為 8m，設(shè)置兩層地下室，作為停車場和機(jī)房用地，基坑四周距離圍墻 15m 左右，采用排樁 加錨桿 支護(hù)， 其中 AB、 AD 側(cè)采用單排錨桿， BC、 CD 側(cè)設(shè)置兩排錨桿進(jìn)行支護(hù)。 AB、 AD 側(cè)樁的嵌固深度為 ， BC、 CD 側(cè)為 ，總的樁長在 左右。錨桿 AB、 AD 側(cè)錨桿長為 ， BC、 CD側(cè) 一層錨桿長 ，二層錨桿長 為 ，設(shè)計(jì)中還對(duì)基坑進(jìn)行降水，采用輕型井點(diǎn)降水系統(tǒng)，井點(diǎn)管間距周邊為 ，角落地方為 ，選用兩臺(tái) 3B19 型離心泵，軸功率為 。所以根據(jù)場地工程地質(zhì)條件，為了滿足此擋土墻和邊坡的安全、經(jīng)濟(jì)、合理等問題，最終確定采用排樁支護(hù)、樁錨支護(hù)和放坡支護(hù)開挖三種支護(hù)方式經(jīng)過幾種方案的優(yōu)選，四周均采用樁錨支護(hù)方案，滿足工程要求。 本設(shè)計(jì)主要對(duì)此基坑工程進(jìn)行方案論證選擇、設(shè)計(jì)計(jì)算 及基坑降排水和 工程監(jiān)測。 關(guān)鍵詞 ：基坑支護(hù)；樁錨支護(hù)； 基坑 降 水 ；工程監(jiān)測 河南理工大學(xué)本科畢業(yè)論文（設(shè)計(jì)） Abstract II Abstract Wuhan City, the Tai He biotope proposed residential buildings, The east and south of the proposed building site is now the highway, set the ground load 20kPa, north and west with the other buildings of the district, the pit depth is greater than the design pit, the ground load is set to 10kPa, The proposed residential building height of 80 meters, the pit depth of 8 meters, set up a twotier basement car park and the engine room space, pit distance fence around 15 meters or so. There is two rows bolt anchor in the side of BC, CD, and single row in the side of AB, AD. the use of soldier pile retaining pile embedded depth AB, AD meters, BC, CD, side meters . The total pile is meters or so. Anchor AB, AD side of the bolt is meters, BC, CD, side is meters in the first floor, and meters in the last floor .the design of the pit precipitation Well point dewatering system, the periphery of the well point tube spacing for meters corner of the place is meters, the choice of two 3B19 centrifugal pump, the shaft power site engineering geological conditions, in order to meet the retaining walls and slope of the security, economic, reasonable, and ultimately to determine using the row of piles supporting pile anchor support and grading support three supporting way through several programs preferred, are used around the pile anchor the program to meet the engineering requirements . The design of this pit engineering demonstration program selection, design calculations, engineering, monitoring and construction design. Keywords: Foundation Pit。 pile anchor。 pit precipitation。 project monitoring 河南理工大學(xué)本科畢業(yè)論文（設(shè)計(jì)） 目錄 III 目 錄 第一章 緒論 .............................................................................................................................. 1 問題的提出 .................................................................................................................... 1 基坑支護(hù)技術(shù)的發(fā)展現(xiàn)狀 ............................................................................................ 1 常用基坑支護(hù)技術(shù)的方法 ............................................................................................ 2 排樁或地 下連續(xù)墻 ........................................................................................................ 2 水泥土墻 ...................................................................................................................... 2 土釘墻 .......................................................................................................................... 2 逆作拱墻 ...................................................................................................................... 2 放坡 ............................................................................................................................. 2 本設(shè)計(jì)的主要內(nèi)容及設(shè)計(jì)原則 .................................................................................... 2 設(shè)計(jì)內(nèi)容 ...................................................................................................................... 2 設(shè)計(jì)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(jí) ........................................................................................................ 6 第三章 基坑支護(hù)方案比選 .................................................................................................... 7 基坑環(huán)境條件 ................................................................................................................ 7 支護(hù)結(jié)構(gòu)選型 ................................................................................................................ 7 .................................................................................................................. 7 噴錨網(wǎng)支護(hù) ................................................................................................................. 9 排樁支護(hù) ....................................................................................................................10 土層錨桿設(shè)計(jì)參數(shù) ......................................................................................................12 第四章