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刚_柔性桩复合地基中桩荷载传递规律试验研究
30 1 Vol.30 No.1
2009 1 Rock and Soil Mechanics Jan. 2009 (2009) 01 0201 06
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1 2 1
1. 310027 2. 310015
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TU 473 A
Research on in-situ tests of pile load transfer behaviors
in composite foundation with rigid- flexible piles
1 2 1
ZHU Kui , WEI Gang , XU Ri-qing
(1. Key Laboratory of Soft Soils and Geoenvironmental Engineering, Ministry of Education, Zhejiang University, Hangzhou 310027, China;
2.Department of Civil Engineering of City College, Zhejiang University City College, Hangzhou 310015, China)
Abstract: In order to study load transfer mechanism of rigid pile and flexible pile in composite foundation with rigid-flexible piles,
in-situ tests are carried out for the two buildings with this new composite foundation in Wenzhou. Stress meters are embedded along
cast-in-place pile shaft; and strain meters are embedded along cement mixing pile shaft. Sensors are monitored in the process of
construction. The test results show there are different rules between rigid pile and flexible pile; the gravity central point of central
rigid pile friction force is lower than that of edge rigid pile; central rigid pile in composite foundation without cushion appears
negative friction force at few floors; while central
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