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噶米大管棚施工工藝_

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隧道淺埋巖堆體 ?108大管棚超前支護施工工藝 編制 : 審核 : 彭酉項目經(jīng)理部 二 00三年十一月三十日 目 錄 1. 前言·····································2 2. 工程概況·································2 2.1 概述··································2 2.2 大管棚變更情況· ·······················3 2.3 大管棚超前支護方法· ···················4 3. 施工工藝·································7 3.1 測量放樣······························7 3.2 鉆孔··································9 3.3

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精品文檔 精品文檔 隧道淺埋巖堆體 ?108大管棚超前支護施工工藝 編制 : 審核 : 彭酉項目經(jīng)理部 二 00三年十一月三十日 精品文檔 精品文檔 目 錄 1. 前言·····································2 2. 工程概況·································2 2.1 概述··································2 2.2 大管棚變更情況· ·······················3 2.3 大管棚超前支護方法· ···················4 3. 施工工藝·································7 3.1 測量放樣······························7 3.2 鉆孔·····················

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