地面爆炸条件下浅埋地下结构物响应的离心模型试验研究

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Abstract Shallow-buried circular structures under surface blasting were investigated by using Tsinghua University 50 g-t geotechnical centrifuge，and the dynamic responses of structures were studied under the conditions of different explosive charges，different buried depths of structures，different materials of overburden layer and different water contents of soil. The results showed that：(1) The crater ejecta significantly affected by the Coriolis acceleration；(2) The peak strain at the bottom of the structure was about one third of that at the top part；(3) The more water the soil layer contained，the greater the strain response of the structure was；(4) The sandy soil as covering material was helpful to the blast-resistant of structure. These results can provide references to reinforcement of existing structure and design of underground structures.

Key words： soil mechanics underground structures surface blasting centrifugal model tests dynamic response

Received: 04 November 2009

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	Articles by authors
	MA Liqiu1
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	ZHANG Jianmin2
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	HU Yun2
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	ZHANG Limin4

Cite this article:

MA Liqiu1,2,3, et al. CENTRIFUGAL MODEL TESTS FOR RESPONSES OF SHALLOW-BURIED UNDERGROUND STRUCTURES UNDER SURFACE BLASTING[J]. , 2010, 29(S2): 3672-3678.

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https://rockmech.whrsm.ac.cn/EN/Y2010/V29/IS2/3672

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