采用廊道排水减压解决地下结构抗浮问题的研究及应用

发布时间：2018-06-29 17:17

本文选题：地下工程 + 地下结构　；参考：《岩石力学与工程学报》2016年09期

【摘要】：随着地下结构的变大变深,常规的抗浮方法往往导致经济和时间成本大增。结合实际工程,介绍一种以"排"为主的利用排水廊道进行坡地地下结构抗浮的方法。方法核心是通过在地下结构周边设置排水廊道降低设计水位,减小作用在结构底板上的水荷载,难点在于保证排水廊道长期运行可靠性和控制降水对周边环境的影响。详细介绍排水廊道减压系统的特点,设计应着重注意的问题、分析方法以及计算结果与实测结果的比较。该方法不但具有一般排水减压法经济效益显著,不影响工期的特点外,同时还具有以下3个特点:一是能充分利用坡地地形的特点实现廊道内的渗水自排,减少运行成本;二是廊道可进人,易于维修,其长期运行的可靠性易于保证;三是排水设施与主体结构相互独立,对主体结构的干扰小。
[Abstract]:As the underground structure becomes larger and deeper, the conventional anti-floating methods often lead to a great increase in economic and time costs. Combined with practical engineering, this paper introduces a method of anti-floatation of underground structure of sloping land by using drainage corridor, which is mainly "drainage". The core of the method is to reduce the design water level and reduce the water load acting on the structure floor by setting drainage corridors around the underground structure. The difficulty lies in ensuring the long-term operation reliability of the drainage corridors and controlling the influence of precipitation on the surrounding environment. The characteristics of the drainage corridor decompression system are introduced in detail. The problems that should be paid attention to in the design, the analysis method and the comparison between the calculated results and the measured results are also presented. The method not only has remarkable economic benefits and does not affect the duration of the project, but also has the following three characteristics: firstly, it can make full use of the characteristics of slope terrain to realize the self-drainage of water in the corridor and reduce the running cost; The other is that the corridor is accessible and easy to maintain, the reliability of its long-term operation is easy to guarantee, and the drainage facilities and the main structure are independent of each other, and the interference to the main structure is small.
【作者单位】：华南理工大学土木与交通学院;华南理工大学亚热带建筑科学国家重点实验室;
【基金】：国家科技支撑计划资助项目(2011BAG07B02) 中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室资助课题(Z015013) 华南理工大学中央高校基本科研业务费(20152M024)~~
【分类号】：TU943

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