[1] Zhong Wenhua, Zhang Kegong, Liu Songyu,. Case analysis of piled raft socketed in weak rock [J]. Journal of Southeast University (English Edition), 2003, 19 (4): 373-377. [doi:10.3969/j.issn.1003-7985.2003.04.015]

Copy

Case analysis of piled raft socketed in weak rock()

Share：

Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:

19

Issue:

2003 4

Page:

373-377

Research Field:

Civil Engineering

Publishing date:

2003-12-30

Info

Title:

Case analysis of piled raft socketed in weak rock

Author(s):

Zhong Wenhua;  Zhang Kegong;  Liu Songyu

Geotechnical Engineering Institute, College of Transportation, Southeast University, Nanjing 210096, China

Keywords:

piled raft;  weak rock;  rock-socketed pile

PACS:

TU471

DOI:

10.3969/j.issn.1003-7985.2003.04.015

Abstract:

Piles socketed in soft rock were traditionally regarded as end-bearing piles, and the loads transferred from superstructure were assumed in design to be shouldered totally by the piles. This paper was designated to deal with the interaction between the piles socketed in weak rock and surrounding soil through field measurement. The pile head reaction and ground pressure under piled-raft foundation were monitored, respectively. The analysis of the data measured in-situ shows the characteristics of the pile embedded in weak rock are similar to that of friction pile to some extent. The rock-socketed pile, together with the surrounding soil, shoulders the weight of the superstructure. It is suggested that soil bearing should be considered in designing the soft rock-socketed piles, which can make the design more economical.

References:

[1] Meyerhof G G. Compaction of sands and bearing capacity of piles [J]. JSMFE Div ASCE, 1959, 85(1): 1-29.
[2] Randolph M F, Wroth C P. Analysis of deformation of vertically loaded piles [J]. J Geotech Engrg ASCE, 1978, 104(4): 1465-1488.
[3] Chow Y K. Discrete element analysis of settlement of pile groups [J]. Computers and Structures, 1986, 24(1): 157-166.
[4] Chow Y K. Analysis of vertically loaded groups [J]. Int J for Numerical and Analytical Mechanics, 1986, 10(1): 59-72.
[5] Poulos H G, Davis E H. The settlement behavior of single axially loaded incompressible piles and piers [J]. Geot, 1968, 18(3): 350-370.
[6] Poulos H G, Davis E H. Analysis of the settlement of pile groups [J]. Geot, 1968, 18(4): 449-471.
[7] Poulos H G, Mattes N S. The behavior of axially loaded end-bearing piles [J]. Geot, 1969, 19(2): 285-300.
[8] Poulos H G. Pile foundation analysis and design[M]. New York: John Wiley & Sons, Inc, 1980.
[9] Butterfield R, Banerjee P K. The elastic analysis of compressible piles and pile groups [J]. Geot, 1974, 24(1): 43-60.
[10] O’Neill M W, Hawkins R A, Mahar L J. Loads transfer mechanics in piles and pile groups [J]. J Geot Engrg ASCE, 1982, 108(12): 1605-1623.
[11] Chow Y K. Iterative analysis of pile-soil-pile interaction [J]. Geot, 1987, 37(3): 321-333.
[12] Clancy P, Randolph M F. Single design tools for piled raft foundation [J]. Geot, 1996, 46(2): 313-328.
[13] Lee C Y. Pile droup settlement analysis by hybrid layer approach [J]. J Geot Engrg ASCE, 1993, 119(6): 984-997.
[14] Zhong Wenhua, Zhang Kegong, Liu Songyu. Analysis of the behavior of the rafts’ deformation and interior force on natural subsoil [J]. J ZhongShan Univ, 2002, 41(2): 93-95.(in Chinese)

Memo

Memo:

Biographies: Zhong Wenhua(1978—), male, graduate; Liu Songyu(corresponding author), male, doctor, professor, syliu30@hotmail.com.

Common functions