厚表土层立井井筒冻结施工设计

Design of Shaft Freezing Construction in Thick Surface Soil

通过对井筒施工地点水文地质条件进行分析,确定了在厚表土层条件下采用冻结法井筒施工方案,合理选择冻结造孔参数,提高冻结效果及施工速度,对类似井筒的施工具有一定的借鉴作用。

Through the analysis of the hydrogeological conditions of the stratum at the site of shaft construction, this paper determined the scheme of freezing shaft construction under the condition of thick surface soil. The scheme can reasonably select the parameters of freezing hole-making, improve the freezing effect and construction speed, which has a certain reference value for similar shaft construction.