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强夯后地基承载力的估算
25 2 Vol.25 Supp.2
2006 10 Chinese Journal of Rock Mechanics and Engineering Oct.2006
12 1 2
(1. 510640 2. 510650)
(GB50007 2002)
TU 472.3 A 1000 6915(2006)2 3523 06
EVALUATION OF BEARING CAPACITY OF FOUNDATION TREATED
WITH DYNAMIC COMPACTION METHOD
1 2 1 2
ZENG Qingjun MO Haihong LI Maoying
(1. College of Architecture and Civil EngineeringSouth China University of Technology GuangzhouGuangdong510640China
2. Guangdong Communication PolytechnicGuangzhouGuangdong510650China)
Abstract The bearing capacity of foundation treated with dynamic compactionground improvement method
is evaluated. Evaluation of bearing capacity of foundation with dynamic compaction method can provide
references to the preliminary design of ground improvement. The in-situ loading tests for dynamic compaction
projects to determine all types of foundation′s bearing capacity are performed becausesometimesthe theoretical
calculation is not always reliable. Through the empirical-statistical regression analysis of some practical data for
the bearing capacity of foundation treated with dynamic compaction it is found that the allowable bearing capacity
of foundation is a function of energy of single drop and the number of total drops. When the foundation of
noncohesive soil is treated the equivalent quasi-static force between the tamper ground and the depth of
compaction-pit according to the quasi-static method is studiedwhile the contact force on the
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