隧道浅埋岩堆体 ?108大管棚超前支护施工工艺 编制 : 审核 : 彭酉项目经理部 二 00三年十一月三十日 目 录 1. 前言·····································2 2. 工程概况·································2 2.1 概述··································2 2.2 大管棚变更情况· ·······················3 2.3 大管棚超前支护方法· ···················4 3. 施工工艺·································7 3.1 测量放样······························7 3.2 钻孔··································9 3.3
精品文档 精品文档 隧道浅埋岩堆体 ?108大管棚超前支护施工工艺 编制 : 审核 : 彭酉项目经理部 二 00三年十一月三十日 精品文档 精品文档 目 录 1. 前言·····································2 2. 工程概况·································2 2.1 概述··································2 2.2 大管棚变更情况· ·······················3 2.3 大管棚超前支护方法· ···················4 3. 施工工艺·································7 3.1 测量放样······························7 3.2 钻孔·····················
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