岩溶区嵌岩桩的破坏模式与工程设计探讨

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Abstract Based on indoor model tests，the failure mode of rock-socketed pile in karst area under different influencing factors is researched. The test indicate that there are four failure modes，which are punching failure mode，collapsed zone failure mode，sector plastic zone failure mode and tearing failure mode. Failure mode is mainly related with roof thickness，equatorial radius of karst cave，the ratio of polar radius to equatorial radius of karst cave. Compared with different specifications about the design of rock-socketed pile，investigate on cave safe roof thickness is extended；and a serious of credible computational formula are brought out，which are proved by engineering examples.

Key words： pile foundations rock-socketed pile in karst area failure mode safe roof thickness engineering design

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	Articles by authors
	ZHANG Zhihao1
	2
	ZHANG Huile1
	2
	MA Lin1
	2
	SUN Yingxia1
	2

Cite this article:

ZHANG Zhihao1,2,ZHANG Huile1, et al. DISCUSSION ON FAILURE MODE AND ENGINEERING DESIGN OF ROCK-SOCKETED PILE IN KARST AREA[J]. , 2013, 32(s2): 4130-4138.

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https://rockmech.whrsm.ac.cn/EN/Y2013/V32/Is2/4130

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