路堤荷载下双向增强体复合地基桩土应力比计算

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Abstract According to the characteristics of interaction among embankment，reinforced cushion and pile-soil reinforced area，the reinforced cushion is regarded as an elastic thin plate，and the soil and pile are simplified as a series of springs with different rigidities. Based on the theory of small deflection thin plate on elastic foundation，with consideration of soil arching effect in the embankment，the deflection deformation of the cushion is simulated. The calculation model for two-direction reinforcement composite foundation under embankment loads is established. Based on the model and the continuous conditions of stresses and deformations，the solution to pile-soil stress ratio can be obtained. Finally，the result calculated by the proposed method is compared with the observed one of a project. It is shown that the calculated result is close to the observed one. It verifies the feasibility of the proposed method and the results can provide references for engineering practice.

Key words： pile foundations two-direction reinforcement soil arching effect elastic thin plate pile-soil stress ratio

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	Articles by authors
	ZHAO Minghua
	LIU Meng
	LONG Jun
	GU Meixiang

Cite this article:

ZHAO Minghua,LIU Meng,LONG Jun, et al. CALCULATION OF PILE-SOIL STRESS RATIO OF TWO-DIRECTION REINFORCEMENT COMPOSITE FOUNDATION UNDER EMBANKMENT LOADS[J]. , 2012, 31(S1): 3286-3290.

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https://rockmech.whrsm.ac.cn/EN/Y2012/V31/IS1/3286

[1] 饶为国，赵成刚. 桩–网复合地基应力比分析与计算[J]. 土木工程学报，2002，35(2)：74–80.(RAO Weiguo，ZHAO Chenggang. The behavior of pile-net composite foundation[J]. China Civil Engineering Journal，2002，35(2)：74–80.(in Chinese))

[2] 郑俊杰，陈保国，ABUSHARAR S W，等. 双向增强体复合地基桩土应力比分析[J]. 华中科技大学学报：自然科学版，2007，35(7)： 110–113.(ZHENG Junjie，CHEN Baoguo，ABUSHARAR S W，et al. Pile-soil stress ratio of two-directed reinforcement composite foundation[J]. Journal of Huazhong University of Science and Technology：Natural Science，2007，35(7)：110–113.(in Chinese))

[3] ABUSHARAR S W，ZHENG J J，CHEN B G，et al. A simplified method for analysis of a piled embankment reinforced with geosynthetics[J]. Geotextiles and Geomembranes，2009，27(1)：39–52.

[4] 赵明华，刘敦平，张玲. 双向增强体复合地基桩土应力比计算[J]. 工程力学，2009，26(2)：176–181.(ZHAO Minghua，LIU Dunping，ZHANG Ling. Calculation for pile-soil stress ratio of two-direction reinforced composite foundation[J]. Engineering Mechanics，2009，26(2)：176–181.(in Chinese))

[5] 吕文志，俞建霖，刘超，等. 柔性基础复合地基的荷载传递规律[J]. 中国公路学报，2009，22(6)：1–9.(LU Wenzhi，YU Jianlin，LIU Chao，et al. Load transfer rule of composite ground under flexible foundation[J]. China Journal of Highway and Transport，2009，22(6)：1–9.(in Chinese))

[6] 俞建霖，荆子菁，龚晓南，等. 基于上下部共同作用的柔性基础下复合地基性状研究[J]. 岩土工程学报，2010，32(5)：657–663. (YU Jianlin，JING Zijing，GONG Xiaonan，et al. Working behaviors of composite ground under flexible foundation based on super-sub structure interaction[J]. Chinese Journal of Geotechnical Engineering，2010，32(5)：657–663.(in Chinese))

[7] 龚晓南. 复合地基理论及工程应用[M]. 北京：中国建筑工业出版社，2002：8–9.(GONG Xiaonan. Theory of composite foundation and engineering application[M]. Beijing：China Architecture and Building Press，2002：8–9.(in Chinese))

[8] 徐芝纶. 弹性力学(下册)[M]. 北京：高等教育出版社，2006：26–28. (XU Zhilun. Elasticity(Vol. 2)[M]. Beijing：Higher Education Press，2006：26–28.(in Chinese))

[9] SELVADURAI A P S. 土与基础相互作用的弹性分析[M]. 范文田，何广汉译. 北京：中国铁道出版社，1984：140–142. (SELVADURAI A P S. Elastic analysis of soil-foundation interaction[M]. Translated by FAN Wentian，HE Guanghan. Beijing：China Railway Publishing House，1984：140–142.(in Chinese))

[10] 杨宇. 双向增强体复合地基承载性能研究[博士学位论文][D]. 长沙：湖南大学，2006：28–29.(YANG Yu. Research on bearing capability of double direction reinforced composite foundation[Ph. D. Thesis][D]. Changsha：Hunan University，2006：28–29.(in Chinese))