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http://dx.doi.org/10.9720/kseg.2019.3.211

Effect of CPR Foundation Reinforcement Assessed by Compressive Loading Tests  

Kang, Seong-Seung (Department of Energy and Resources Engineering, Chosun University)
Kim, Jung-Han (Hyowon E&C Co., Ltd.)
Noh, Jeongdu (Department of Energy and Resources Engineering, Chosun University)
Ko, Chin-Surk (Department of Energy and Resources Engineering, Chosun University)
Publication Information
The Journal of Engineering Geology / v.29, no.3, 2019 , pp. 211-222 More about this Journal
Abstract
This study evaluates the yield load and allowable bearing capacity of ground in compressive loading tests to confirm the effect of CPR foundation reinforcement. The average compressive strength of the injection materials was higher than the planned compressive strength. Standard penetration tests for each stratum showed that foundation reinforcement improved the average N values, thereby increasing the bearing capacity of the ground. Compressive loading tests on two CPR piles revealed that the total and net settlement due to the maximum load exceed that permissible for the CPR pile diameter. The yield load and allowable bearing capacity calculated by the settlement criterion and the load-settlement curves varied greatly with the method applied. Therefore, it seems to be necessary to determine the optimum value through comprehensive analysis after applying various yield load calculation methods.
Keywords
CPR method; compressive loading; yield load; allowable bearing capacity; settlement;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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