长螺旋钻孔孔内泵压成桩窜孔原因分析、应对措施和建议
장라선찬공공내빙압성장찬공원인분석、응대조시화건의
Cause Analysis, Countermeasures and Suggestions of Long Spiral Drilling Hole Pump Pressure Pile-Forming in the Hole Channeling
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