| 花岗岩风化土中地铁基坑施工风险和对策 |
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| 引用本文： | 高建国.花岗岩风化土中地铁基坑施工风险和对策[J].铁道勘察,2010,36(3). |
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| 作者姓名： | 高建国 |
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| 作者单位： | 广州市地下铁道总公司,广东广州,510380 |
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| 摘 要： | 总结了广州地区花岗岩风化土层成因、工程特性和施工风险,通过工程实例提出解决花岗岩风化不良地层问题关键是处理好"水","水"是风化土层软化、泥化等问题的诱因;花岗岩风化不良地层现有处理方案各有利弊,适用条件各不相同,总体思路应从被动应对逐步转变为主动治水,方案宜采用围护结构隔水+主动式止水或降(排)水方式;设计单位应掌握工程周边环境和工程地质、水文情况,结合设计边界条件,充分比选、论证,力争拿出技术、经济最优方案。
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| 关 键 词： | 花岗岩 风化土层 地铁基坑 施工风险 |
Risks in Construction of Foundation Pits for Subway in Weathering Soil of Granite as Well as Its Countermeasures |
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| Gao Jianguo.Risks in Construction of Foundation Pits for Subway in Weathering Soil of Granite as Well as Its Countermeasures[J].Railway Investigation and Surveying,2010,36(3). |
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| Authors: | Gao Jianguo |
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