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某公共停车场深基坑流砂发生原因分析及处理措施 被引量:1

Cause Analysis and Treatment Measures for Quicksand in Deep Foundation Pit of a Public Parking Lot
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摘要 在不良地质场地深基坑开挖过程中,由于施工质量不好或施工方法不当,饱和的非黏性土体可能会在地下水渗流力的作用下丧失承载能力而产生流砂。流砂不仅会影响基坑开挖施工,还会对基坑的稳定性以及基坑附近建筑物的安全产生不同程度的影响。针对基坑工程施工过程中出现的流砂问题,结合某市政地下公共停车场深基坑工程实例,分析了流砂的成因,并对该工程中流砂的控制处理措施进行了介绍。 In recent years, with the development of urban construction, the excavation of deep foundation pit in the unfavorable geology site has been more frequent. During the process of excavation, the saturated non - cohesive soil below the bottom of foundation pit may loose the bearing capacity under the stress of the groundwater seepage force due to bad construction quality or improper construction method. Then, the saturated non-cohesive soil will swarm into the foundation pit with the flow of water, which is just the quicksand. The quicksand will not only affect the excavation construction, but also affect the stability of foundation pit and the safety of the buildings nearby the foundation pit. Therefore, it is particularly important to control and treat the quicksand during the excavation. In order to discuss the quicksand problem in the process of foundation pit excavation, this paper presents the causes and the control and treatment measures of quicksand in the project taking a deep foundation pit project of a municipal underground public parking as an example.
作者 张烨
出处 《路基工程》 2017年第6期221-224,共4页 Subgrade Engineering
关键词 流砂 流砂成因 处理措施 工程质量 quicksand causes of quicksand treatment measures project quality
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