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Title |
In-Situ Application of the Steel Pipe jacking with Grouting
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Keywords |
현장 단위중량 ; GPR 탐사 ; 그라우팅 ; 강관추진 ; 지표침하 ; In-situ density ; GPR exploration ; Grouting ; Steel pipe jacking ; Surface settlement |
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Abstract |
The pipe jacking method which is a non-excavation method is frequently used due to constructability and economical efficiency in a medium or small-sized pipeline construction. However, jacking process of the method still causes problems that the base ground is disturbed and loosen. These lead to surface settlement, strength decrease and leakage of water. Therefore, this study presents in-situ application of the steel pipe jacking with grouting, and it is that jacking and grouting are progressed simultaneously. To verify this, the steel pipe jacking with grouting and the existing steel pipe jacking have been constructed on the same ground condition. It has been proved that the steel pipe jacking with grouting is in-situ applicable according to results of monitoring surface settlement, in-situ density, GPR geophysical prospecting and large scale direct shear test.
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