CAJ | 학술논문

地铁车站或风井和盾构区间连接处，需要在端墙处设置盾构孔。由于开孔较大，再加上车站端头或者风井具有显著的空间效应，使得端墙的设计成为难题，国内学者普遍推荐采用三维数值模拟的方法。本文对日本学者提出的端墙开孔部位简化分析进行改进和扩展，简化为模型简单的二维问题，得出了合理的简化分析方法。与三维模型的计算结果进行对比分析，发现该简化分析未考虑壁柱有改善端墙受力的作用，比三维模型结果偏大，但基于安全角度考虑，可以作为工程设计参考。
지철차참혹풍정화순구구간련접처，수요재단장처설치순구공。유우개공교대，재가상차참단두혹자풍정구유현저적공간효응，사득단장적설계성위난제，국내학자보편추천채용삼유수치모의적방법。본문대일본학자제출적단장개공부위간화분석진행개진화확전，간화위모형간단적이유문제，득출료합리적간화분석방법。여삼유모형적계산결과진행대비분석，발현해간화분석미고필벽주유개선단장수력적작용，비삼유모형결과편대，단기우안전각도고필，가이작위공정설계삼고。
It is required to have shield hole on the end wall at the joint section of the shield zone and the metro station/air shaft. Due to the size of the hole and the space effect of the start shaft and the air shaft, the designing scheme of the end wall stands a huge challenge,for which domestic scholars recommend the three-dimensional numerical simulation method. The paper takes reference from the simplified analysis conducted in Japan,in which the hole is drilled at the end wall of the shaft,and carries out improvement and expansion of this approach. Therefore,the three-dimensional method is simplified to two-dimensional level. Afterwards,the result is compared to that of the three-dimensional approach,and it shows that the pilaster can effectively improve the force-bearing performance of the end wall. And since the two-dimensional model fail to take that into consideration,the result is far from satisfaction. However,it can be of value to the construction from the safety perspective.