【正文】 ................................................................................................................48 回填 ............................................................................................................................................................49 排水箱涵施工 .......................................................................................................................................................49 箱涵的基底處理 ...........................................................................................................................................49 鋼筋、模板制安 ...........................................................................................................................................50 混凝土工程 ................................................................................................................................................51 臺背回填 ......................................................................................................................................................54 沉井施工 ...............................................................................................................................................................54 施工前的準備工作 .......................................................................................................................................54 場地處理、沉井分節(jié) ...................................................................................................................................55 沉井施工步驟 .............................................................................................................................................56 鋼筋綁扎 ......................................................................................................................................................57 沉井砼澆筑、養(yǎng)生、拆模 ...........................................................................................................................57 沉井下沉 ......................................................................................................................................................58 沉井制作和下沉過程中的質(zhì)量控制 ...........................................................................................................59 沉井下沉施工偏差的控制 ...........................................................................................................................61 檢查井人工挖孔施工 ..........................................................................................................................................63 人工挖孔施工方法 .......................................................................................................................................63 人工挖孔施工措施 .......................................................................................................................................64 頂管施工 ...............................................................................................................................................................64 材料、機具準備 ...........................................................................................................................................64 施工工藝流程圖 ...........................................................................................................................................66 主要施工方法 ..............................................................................................................................................67 頂管工具管 ..................................................................................................................................................68 吊裝設(shè)備 ......................................................................................................................................................69 出泥設(shè)備 ......................................................................................................................................................69 通風設(shè)備及送風 ...........................................................................................................................................69 照明裝置 ......................................................................................................................................................69 頂管施工管道的保護措施 ...........................................................................................................................69 觸變泥漿減阻 .............................................................................................................................................70 頂管工作平臺及棚架搭設(shè) .........................................................................................................................72 頂進設(shè)備的安裝 .........................................................................................................................................73 頂進設(shè)備的試車運行 .................................................................................................................................73 管道頂進施工 .............................................................................................................................................73 地面沉降的控制 .........................................................................................................................................77 導(dǎo)向管施工 .........................................................................................................................................................78 水平定向鉆穿越施工工藝 .........................................................................................................................783 水平定向鉆施工 .........................................................................................................................................80 水平定向鉆機系統(tǒng)簡介 .............................................................................................................................80 穿越施工現(xiàn)場布置 ...............................................