The Research on Mechanics Characteristic of Pile GroupFoundation under Vertical load
[1]DU Si-yi,SHI Lei.The Research on Mechanics Characteristic of Pile GroupFoundation under Vertical load[J].Journal of Zhengzhou University (Engineering Science),2015,36(04):67-71.[doi:10.3969/ j. issn. 1671 -6833.2015.04.016]
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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
36
Number of periods:
2015 04
Page number:
67-71
Column:
Public date:
2015-08-31
- Title:
- The Research on Mechanics Characteristic of Pile GroupFoundation under Vertical load
- Keywords:
- static load test ; pile group foundation ; numerical analysis ; bearing capacity
- CLC:
- TU473.1
- DOI:
- 10.3969/ j. issn. 1671 -6833.2015.04.016
- Abstract:
- Field static load test of pile group foundation is difficult to carry out because the limitation of fundsor equipments. At the same time,the bearing capacity mechanism of pile group foundation and interaction be-tween piles and soil is complex,there are still large gaps between the theory research and practice. In the pa-per mechanics characteristics of pile group foundation under vertical load were researched by the local testingand computer numerical value. Some solutions were educed that the bearing capacity of pile group foundationwill increase while the pile spacing increases, but the trend is very weak while S >5D.The difference of stressbetween piles in different positions will decrease while the pile spacing increases. The stress distribution on thepile top tends to be uniform with the increase of load.The bearing capacity of pile group can increase as pilelength increases,when length-diameter ratio L/D =20 ~30,The bearing capacity of pile group is greater andthe expense is lower.
- References:
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