地下结构截排减压抗浮概念及应用

doi:10.13722/j.cnki.jrme.2016.0343

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Abstract A sharp increase in the size of underground structures brings a great challenge to the anti-floatation design. A conventional passive method usually means a huge cost in finance and time. An efficient active method was thus proposed. The essential idea of the method is to reduce the water pressure by drainage and to control its environmental impact by cut-off walls(curtains). The application of the method in a practical case was addressed in details with the emphasis on how to make the drainage system reliable and maintainable. The drainage system has been on service over seven years successfully. It was found that a large diameter relief well made of pervious concrete was not clogged and easy maintainable. A stratum with a strong permeable soil layer is a favorable condition for the proposed method because the environmental impact can be controlled easily. In this case，the method should be first choosed.

Key words： underground engineering underground structure anti-floatation drainage seepage relief well

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	Articles by authors
	CAO Hong1
	2
	PAN Hong1
	2
	LUO Guanyong1
	2

Cite this article:

CAO Hong1,2,PAN Hong1, et al. A new anti-floatation method by drainage：concept and application[J]. , 2016, 35(12): 2542-2548.

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http://rockmech.org/EN/10.13722/j.cnki.jrme.2016.0343 OR http://rockmech.org/EN/Y2016/V35/I12/2542

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