魏墙煤矿在施工回风井时,遇到了风积沙壤土层,在掘进过程中为了能顺利通过这段特殊地质带,单位与科研机构合作,先后采用了三种不同施工方法,才顺利通过。通过分析这三种方法在施工过程的情况分析,我们不难看过砂质壤土时的既经济又安全的施工方法是高压旋喷桩法。 During the construction of the return air shaft, Weiqiang Coal Mine met the aeolian sandy loam layer. In order to successfully pass this special geological belt during excavation, the unit cooperated with scientific research institutes and successively adopted three different construction methods to successfully pass it. By analyzing the analysis of the three methods in the construction process, it is not difficult to see the sandy loam both economical and safe construction method is high pressure jet grouting pile method.