静钻根植竹节桩在软土地基中的应用及其承载力计算

doi:10.13722/j.cnki.jrme.2014.s2.121

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Abstract The static drill rooted nodular pile has lots of advantages such as high bearing capacity，high technology content and environment protection. In the application to some soft soil areas in the southeastern coast of China，the construction costs of the nodular piles was decreased by 10% compared to that of the bored piles，and the mud emission was largely reduced by using the static drill rooted method. Through the analysis of a test pile，it is found that the skin friction of the nodular pile is about 1.05–1.10 times that of the bored pile，while the standard of the precast pile is more appropriate with calculating the pile tip resistance of the nodular pile，and a reduction coefficient is applied. Combining the result of test pile and the literatures as well as standard in Japan，a simplified calculation formula was proposed. In order to verify the reliability of the proposed formula，test nodular piles in two projects were calculated using the formula. The calculated results fit the test results well. Therefore，the proposed formula could provide some reference for the actual engineering.

Key words： pile foundations static drill rooted method nodular pile composite pile ultimate bearing capacity

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	Articles by authors
	ZHOU Jiajin1
	GONG Xiaonan1
	WANG Kuihua1
	ZHANG Rihong2
	YAN Tianlong2

Cite this article:

ZHOU Jiajin1,GONG Xiaonan1,WANG Kuihua1, et al. APPLICATION OF STATIC DRILL ROOTED PRECAST NODULAR PILE IN SOFT SOIL FOUNDATION AND CALCULATION FOR BEARING CAPACITY[J]. , 2014, 33(S2): 4359-4366.

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https://rockmech.whrsm.ac.cn/EN/10.13722/j.cnki.jrme.2014.s2.121 OR https://rockmech.whrsm.ac.cn/EN/Y2014/V33/IS2/4359

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