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重慶市xx水庫除險加固工程初步設(shè)計報告(存儲版)

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【正文】 9 響范圍不大。 根據(jù)工程布置特點(diǎn)及業(yè)主資金籌措計劃,以及施工方法研究,確定本工程總工期 7 個月,工程準(zhǔn)備期 1 個月(直線工期),主體工程施工期5 個月,完建期 1 個月。 對上、下游進(jìn)行護(hù)坡,對上游壩坡采用預(yù)制砼塊護(hù)坡, C15 砼塊尺寸為 300300mm 的六角形板,厚度 100mm;下游壩坡排水 棱 體以上,采用 C15 砼澆 柵 格草 皮護(hù)坡, 柵 格規(guī)格 。促進(jìn)經(jīng)濟(jì)長期平穩(wěn)較快發(fā)展和社會和諧穩(wěn)定,奪取全面建設(shè)小康社會新勝利,必須下決心加快水利發(fā)展,切實(shí)增強(qiáng)水利支撐保障能力,實(shí)現(xiàn)水資源可持續(xù)利用。 4 結(jié)構(gòu)安全評價 C 大壩筑壩材料一般, 大壩下游壩體中部和 壩基滲漏, 下游壩坡抗滑穩(wěn)定不滿足規(guī)范要求;溢洪道大部分未襯砌,為天然溝渠,斷面尺寸不規(guī)則,垮塌嚴(yán)重,無消能設(shè)施;放水設(shè)施灰縫老化開裂導(dǎo)致滲漏。 溢洪道 XX 水庫溢洪道位于大壩 右 岸,為正堰 寬淺 式,溢洪道全長 43m。 樞紐工程現(xiàn)狀 大壩 XX 水庫大壩為均質(zhì)土壩, 1956 年由原巴縣農(nóng)機(jī)水利局會同區(qū)、社 重慶市渝南水利電力建筑勘測設(shè)計院 2 有關(guān)人員一起規(guī)劃設(shè)計,于 1959 年 10 月動工興建, 1961 年 12 月竣工。 目 錄 1 綜合說明 ............................................................................................................................... 1 .................................................................................................................... 1 ............................................................................................................ 1 ................................................................................................... 3 ................................................................................................... 4 .......................................................................................... 4 ...................................................................................... 5 ............................................................................................................ 8 工程占地 .................................................................................................................... 8 環(huán)境保護(hù)及水土保持 .............................................................................................. 9 工程投資 .................................................................................................................. 9 結(jié)論和建議 .............................................................................................................. 9 2 水文 ...................................................................................................................................... 11 ........................................................................................................................... 11 .......................................................................................................... 13 .......................................................................................................... 17 .......................................................................................................... 19 壩頂高程復(fù)核 .......................................................................................................... 21 3 工程地質(zhì) ............................................................................................................................. 24 ............................................................................................ 24 ............................................................................................ 28 .......................................................................................................... 30 .............................................................................................................. 30 4 樞紐工程布置及建筑物整治設(shè)計 .................................................................................. 32 .................................................................................................................. 32 大壩整治設(shè)計 .......................................................................................................... 33 溢洪道整治加固設(shè)計 ............................................................................................ 42 放水設(shè)施整治設(shè)計 ................................................................................................. 47 5 施工組織設(shè)計 ..................................................................................................................... 48 ..................................................................................................... 48 .................................................................................................................. 49 ..................................................................................................... 50 .................................................................................................................. 50 .................................................................................................................. 52 .............................................................................................................. 56 .................................................................................................................. 59 ..................................................................................................... 62 6 工程管理 ............................................................................................................................. 63 .......................................................................................................... 63 .......................................................................................................... 63 .................................................................................... 64 .......................................................................................................... 66 7 水庫新增淹沒及工程占地 ............................................................................................... 70 .................................................................................................................. 70 ................................................................................................. 70 ........................................................................................ 71
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