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基坑开挖放坡方案

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. .. . .. 学习参考 目录 一、编制依据····················································3 二、工程概况····················································3 1、项目概况··················································3 2、地质地貌概况··············································4 3、设计概况 ·················································4 4、施工特点··················································4 三、施工安排···················

基坑开挖

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基坑开挖——施工特点:   工程量大、施工条件复杂、受场地限制等。   1.1.1 土的工程性质   1.土的密度:   ⑴天然密度:指土在天然状态下单位体积的质量(kg/m3)。   

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