CAJ | 학술논문

结合“吊脚桩”在青岛地铁宁夏路站基坑支护工程中的应用,对土岩二元结构地层基坑支护型式应用的地层条件、主要设计要点及计算方法进行分析,分析结果表明:“吊脚桩”复合支护型式比较适合应用于土岩二元结构地层;其计算方法可以分上下两部分进行结构计算,对于桩底嵌固深度、计算工况需做调整,以满足实际开挖工况要求;微型钢管桩对于吊脚桩岩肩的保护作用明显.
결합“조각장”재청도지철저하로참기갱지호공정중적응용,대토암이원결구지층기갱지호형식응용적지층조건、주요설계요점급계산방법진행분석,분석결과표명:“조각장”복합지호형식비교괄합응용우토암이원결구지층;기계산방법가이분상하량부분진행결구계산,대우장저감고심도、계산공황수주조정,이만족실제개알공황요구;미형강관장대우조각장암견적보호작용명현.
@@@@In connection with the application of “end-suspended pile” being used in the supporting engineering of foundation pit at Ningxia Road station, Qingdao metro, this paper gives a detailed analysis of the formation condition, main design points, and calculation methods in the application of supporting styles of foundation pit in the dualistic structure soil stratum underlying rock stratum. And the results show that the compound supporting style of “end-suspended pile” is the one most suitable for the dualistic structure soil stratum underlying rock stratum; the calculation can be carried out in two stages; the embedded depth of pile bottom and calculation condition need to be adjusted, so as to meet the requirements of actual excavation;and it is effective to protect the end-suspended pile’s rock shoulder by the micro steel pipe pile.