| 沙湾水电站深基坑软基施工工艺优化 |
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| 引用本文： | 温定煜.沙湾水电站深基坑软基施工工艺优化[J].水运工程,2010(3). |
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| 作者姓名： | 温定煜 |
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| 作者单位： | 中国水利水电第五工程局,四川,成都,610066 |
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| 摘 要： | 沙湾水电站厂房基础为堰塞粉土,覆盖层厚,地形地貌地质条件复杂,基坑深、大.对基坑开挖、支护技术进行了优化;粉细沙层以下采用高喷防渗墙形成阻水帷幕,防止开挖过程出现流土,减小基坑排水量;施工围堰为土工膜防渗土石围堰;基坑边坡以锚喷混凝土护坡为主、排板桩梁支挡为辅的支护形式;并对开挖过程实施安全监控.确保了基坑周围建筑物的施工期安全.
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| 关 键 词： | 厂房基坑 防渗墙 软基开挖 锚喷支护 监控 施工安全 |
Optimization of construction technology of deep foundation pit's soft ground of Shawan Hydropower Station |
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| WEN Ding-yu.Optimization of construction technology of deep foundation pit''s soft ground of Shawan Hydropower Station[J].Port & Waterway Engineering,2010(3). |
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| Authors: | WEN Ding-yu |
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| Institution: | WEN Ding-yu(Sinohydro Engineering Bureau 5,Chengdu 610066,China) |
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| Abstract: | The ground of powerhouse of Shawan hydropower station is damming silt of thick cladding and with complicated topographic,geomorphic and geologic conditions.Since the foundation pit is deep and large,it is necessary to optimize the excavation and supporting technology.The high spraying impervious wall was adopted to form water-stopping curtain under the non-cohesive soil,preventing the flowing soil during excavation and reducing the displacement of foundation pit.Geo-membrane impervious earth-rock cofferdam ... |
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| Keywords: | foundation pit of powerhouse impervious wall soft ground excavation anchoring and shotcreting support monitoring construction safety |
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