武汉地铁二号线越江隧道3#联络通道和排水泵房并建,采用水平冻结法和矿山法施工。3#联络通道位于长江下,最大埋深达50 m,地压达0.4 MPa,施工难度大,风险高。为保证施工安全,应用ANSYS数值模拟软件,对3#联络通道冻结设计加固方案形成的帷幕进行可靠性验算。结果表明：冻结壁的强度和刚度以及变形都满足设计要求,为冻结设计和施工提供了定量依据。%The 3# connected aisle and the pump room are constructed together at Wuhan Metro Line 2. The horizontal freezing method and mining method are used. The 3 # connected aisle is located under the Changjiang River, with the maximum burial depth of 50 m and ground pressure of 0.4 MPa. The construction is difficult and has high risk. To ensure the safety of construction, the ANSYS numerical simulation software is applied to check the reliability of the freezing curtain by the freezing reinforcement design scheme. The results show that the strength, rigidity and deformation of the frozen wall all meet the design requirements. The con- clusion provides quantitative basis for the design and construction of freezing.
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