中穿H型钢冠梁工程实践与设计方法探讨

Discussion on engineering practice and design method of the top beam entering through H-beams

随着H型钢排桩和型钢水泥土搅拌墙(SMW工法)内撑支护体系的广泛运用,中穿H型钢混凝土冠梁引起的工程问题日益突显。从工程现场及工程设计两个方面入手,研究中穿H型钢混凝土冠梁在工程应用过程中存在的问题,进而提出相应的建议,对确保工程安全及完善中穿H型钢混凝土冠梁设计方法具有重要意义。

With the widely usage of the inner retaining system of H-steel row piles and composite steel soil-cement mixed diaphragm wall （SMW） , engineering problems caused by the concrete top beam entering through H-beams have become increasingly prominent. Tackling the problems of the concrete top beam entering through the H-beams was discussed in the aspects of engineering site and engineering design. Corresponding treatment measures were proposed to ensure the safety of the project and to improve the design of the concrete top beam entering through H-beams.