摘要To investigate the law that governs changes in excess pore water pressure during the sinking of a pipe pile with a group of holes, excess pore water pressure is monitored during the process of sinking a pile between a pipe pile without holes and three types of pipe pile with holes based on model test. The influences of the time-space dissipation of excess pore water pressure are analyzed by considering the factors of sinking pile sequence and disposal hole mode. The variation rules for excess pore water pressure dissipation with time, depth, radial distance, and sinking pile sequence are also established during the process of sinking the pile. On the basis of comparison and analysis, the pipe pile with holes, which are penetrated in a radial manner, achieves the lowest excess pore water pressure peak and the fastest dissipation rate, which are the most favorable conditions for reducing the squeezing effect of the pile, and the best pile driving effect is achieved. Moreover, the results can provide a reference for the application of pipe piles with holes in engineering practice.
Abstract:To investigate the law that governs changes in excess pore water pressure during the sinking of a pipe pile with a group of holes, excess pore water pressure is monitored during the process of sinking a pile between a pipe pile without holes and three types of pipe pile with holes based on model test. The influences of the time-space dissipation of excess pore water pressure are analyzed by considering the factors of sinking pile sequence and disposal hole mode. The variation rules for excess pore water pressure dissipation with time, depth, radial distance, and sinking pile sequence are also established during the process of sinking the pile. On the basis of comparison and analysis, the pipe pile with holes, which are penetrated in a radial manner, achieves the lowest excess pore water pressure peak and the fastest dissipation rate, which are the most favorable conditions for reducing the squeezing effect of the pile, and the best pile driving effect is achieved. Moreover, the results can provide a reference for the application of pipe piles with holes in engineering practice.
基金资助:Supported by the National Natural Science Foundation of China (No.51268048)
通讯作者:
LIAO You-sun
E-mail: 919612566@qq.com
引用本文:
廖幼孙, 雷余波, 杨康, 柳俊. 有孔管桩群桩沉桩引起的超孔隙水压力模型试验分析[J]. Journal of Highway and Transportation Research and Development, 2018, 12(2): 22-28.
LIAO You-sun, LEI Jin-bo, YANG Kang, LIU Jun. Model Test Analysis of Excess Pore Water Pressure during the Sinking of a Pipe Pile with a Group of Holes. Journal of Highway and Transportation Research and Development, 2018, 12(2): 22-28.
[1] GONG Xiao-nan, LI Xiang-hong. Several Mechanical Problems in Compacting Effects of Static Piling in Soft Clay Ground[J]. Engineering Mechanics, 2000, 17(4):7-11. (in Chinese)
[2] XU Jian-ping, ZHOU Jian, XU Zhao-yang, et al. Model Test Research on Pile Driving Effect of Squeezing Against Soil[J]. Rock and Soil Mechanics, 2000, 21(3):235-238. (in Chinese)
[3] ZHOU Huo-yao, SHI Jian-yong.Testresearch on Soil Compacting Effect of Full Scale Jacked-in Pile in Saturated Soft Clay[J]. Rock and Soil Mechanics, 2009, 30(11):3291-3296. (in Chinese)
[4] LEI Jin-bo. PTC Type Pipe Pile with Hole Used for Deep Soft Foundation Treatment:China ZL2010201053982[P]. 2010-11-03. (in Chinese)
[5] LIU Zhi. Experimental Research on The Static Sinking-pile Effect of Pipe-pile with Hole[D]. Nanchang:Nanchang Hangkong University, 2013. (in Chinese)
[6] CHENG Jiang-rong, GAO Fei. Testing and Testing of Modern Pile Foundation Engineering:New Technologies, New Methods, and New Equipment[M].Shanghai:Shanghai Science and Technology Press,2011. (in Chinese)
[7] CECS55:93, Specification for Pore Pressure Measurement[S]. (in Chinese)
[8] JGJ94-2008, Technical Code for Building Pile Foundations[S]. (in Chinese)
[9] ZHANG Jiang-xin,ZHAO Jiang-jun,SUN Shi-guang.Modle Test and Analysis of Excess Pore Water Pressure Produced by Driving Pile Group[J].Industrial Construction,2009,39(1):76-78. (in Chinese)
[10] SUN Shi-guang, ZHANG Feng-liang.Anslysis on Excess Pore Water Pressure in Pile Group Based on Model Test[J].Shanxi Architecture,2010,36(19):121-122. (in Chinese)
[11] HUANG Xiao-bo, LEI Jin-bo,CHEN Ke-lin,et al.Experimental Study on Ultimate Bearing Capacity of Pipe with Hole[J].Journal of Nanchang Hangkong University, 2014, 28(3):83-87. (in Chinese)
[12] CHEN Wen, SHI Jian-yong, GONG You-ping, et al. Centrifugal Model Tests of Piles Jacked in Saturated Clay[J].Journal of Hohai University,1999, 27(6):103-110. (in Chinese)
[13] LEI Jin-bo, XU Ze-zhong,JIANG Hong-dao, et al.Regularity Analysis and Study on Excessive Pore Water Pressure during Jacked Pile of Pre-ptressed Pipe Piles[J].Journal of Highway Development,2005,22(11):25-29. (in Chinese)
[14] ZHANG Zhong-miao,XIE Zhi-zhuan,LIU Jun-wei,et al. Experimental Study on Pore Pressure during Pile driving in Silty Soil with Mucky Soil Interbed[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(S2):534-536. (in Chinese)
[15] TANG Shi-dong, WANG Yong-xing, YE Zhen-hua.Excess Pore Water Pressure Caused by Installing Pile Group Installing Pile Group in Saturated Soft Soil[J]. Journal of Tongji University, 2003, 31(11):1290-1294.(in Chinese)
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