A computational method of ultimate capacity of uplift piles in basement rock

被引：0

作者：

Tang, Meng-Xiong ^{[1
]}

Chen, Da ^{[2
]}

机构：

[1] Guangzhou Institute of Building Science Co., Ltd., Guangzhou, 510440, Guangdong

[2] Guangzhou Technology Development Centre of GIBS Co., Ltd., Guangzhou, 510440, Guangdong

来源：

Yantu Lixue/Rock and Soil Mechanics | 2015年 / 36卷

关键词：

Basement rock; Interaction between rock and pile; Power function slip surface premise; Uplift pile;

D O I：

10.16285/j.rsm.2015.S2.090

中图分类号：

学科分类号：

摘要：

Considering the interaction between basement rock and pile, a procedure for computing uplift capacity of uplift pile with constant section is deduced according to power function slip surface premise and based on limit equilibrium method. Based on the report of skin friction experiment of pile in soft rock, it is taken that the power function slip surface of pile is close to experiment when the coefficient N = 0. Meanwlile the comparison between theoretical predictions and experimental data indicates the accuracy of the computing formula. According to this computing formula, it is proposed that the coefficient of interaction between soft rock and pile should take 0.7-0.8 discount of coefficient of rock's internal friction angle φ and cohesion c. The relation between the internal friction angle φ, cohesion c and uplift capacity of short uplift pile in soft rock is revealed, where the uplift capacity is enhanced with increasing of the internal friction angle φ, cohesion c of soft rock and cohesion c is more efficient. ©, 2015, Academia Sinica. All right reserved.

引用

页码：633 / 638

页数：5

共 12 条

[1]

Vesic A.S., Tests on instrumented piles, Ogeechee River Site, Journal of the Soil Mechanics and Foundations Division, ASCE, 96, 2, pp. 561-584, (1970)

[2]

Sowa V.A., Pulling capacity of concrete cast in-situ bored piles, Canadian Geotechnical Journal, 7, 4, pp. 482-493, (1970)

[3]

Ismael N.F., Klym T.W., Uplift and bearing capacity of short piers in sand, Journal of the Geotechnical Engineering Division, ASCE, 105, 5, pp. 579-593, (1979)

[4]

Alawneh A.S., Malkawi A.I.H., Aldeeky H., Tension tests on smooth and rough model piles in dry sand, Canadian Geotechnical Journal, 36, 4, pp. 746-753, (1999)

[5]

Shanker K., Basudhar P.K., Patra N.R., Uplift capacity of single piles: predictions and performance, Geotechnical and Geological Engineering, 25, 2, pp. 151-161, (2007)

[6]

Deshmukh V.B., Dewaikar D.M., Choudhury D., Computations of uplift capacity of pile anchors in cohesionless soil, Acta Geotechnica, 5, 2, pp. 87-94, (2010)

[7]

Chattopadhay B.S., Pise P.J., Uplift capacity of piles in sand, Journal of Geotechnical and Geo- environmental Engineering, ASCE, 112, 9, pp. 888-904, (1989)

[8]

Meyerhof G.G., Adams J.I., The ultimate uplift capacity of foundations, Canadian Geotechnical Journal, 5, 4, pp. 225-244, (1968)

[9]

He S.-M., Study on bearing capacity and failure of uplift pile, Rock and Soil Mechanics, 22, 3, pp. 308-310, (2001)

[10]

Shelke A., Mishra S., Uplift capacity of single bent pile and pile group considering arching effects in sand, Geotechnical and Geological Engineering, 28, pp. 337-347, (2010)

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