In the construction of outer wall of freezing shafts, some factors, including insufficient strength of freezing wall, poor construction, and defective designs, cause the damage of concrete outer wall, breaking pipes, shaft submergence, and other accidents. At present, in addition to a limited number of methods, such as strengthening freezing wall, raising concrete grade, and shortening sectional height, there are no other effective ways to prevent the accidents. In a mine in Huainan Mining Industry Group, the topsoil of its auxiliary shaft is 340 meters thick and the total thickness of clay layer accounts for 66%. There are two layers of swelling clay, more than 10 meters thick. With huge expansibility of the clay layers, the construction is very difficult. To ensure safe and fast passing the outer wall excavation and lining of the top soil, the paper studies how to improve the prediction of temperature field of the freezing wall and accuracy control of the temperature at the mine sides. In the meantime, multiple measures are used to realize safe and fast construction in the freezing section, including setting wall claws and pressure-relief slots, laying foam board, controlling raw material quality of the concrete, developing special rapid concrete, controlling cycle time. Therefore, safe and fast construction passing the top soil in the freezing shaft has been achieved without breaking pipes and water inrush accidents.%冻结立井外壁施工往往因为冻结壁强度不够、施工质量不高、设计缺陷等原因造成混凝土外壁破坏、断管、透水淹井等事故，目前除了对冻结壁加强冻结、提高外壁混凝土标号、缩短段高等有限手段来防止事故发生外，没有更为有效的方法处理上述问题。淮南某矿副井表土段厚340 m，其中，粘土层总厚度占表土段的66%，其中2层厚度超过10 m的膨胀粘土，具有很大的膨胀性，施工难度很大。为了保证安全快速通过表土段外壁掘砌，研究了如何加强冻结壁温度场的预测预报、井帮温度准确控制等技术，同时，设置壁爪和卸压槽、敷设泡沫板、控制混凝土原材料质量、研究特殊快速混凝土、控制循环时间等多种措施，实现了冻结段安全快速施工，未发生断管、透水等事故，安全高效通过表土段施工。
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