深立井井壁结构设计中存在问题及解决对策

文章的主要目的是指出目前深立井井壁结构设计中存在的问题、该方面研究的现状,同时给出了解决的对策。文章明确了挡土墙平面地压公式和重液理论计算公式,在井壁结构设计中的存在问题,指出了表土沉降过程中立井次生地压的存在,井壁破裂的力学机理等内容,最后从改变井壁受力状态角度给出了井壁结构优化的对策。

Problem in Structure Design of Shaft Lining in Depth Soil and Countermeasure

The purpose of this paper is to point the research status and the problem existing in structure design of shaft in depth soil at the present time, and present countermeasure. The problem of when retaining wall plain ground pressure formula and heavy liquid theory formula are applied in structure design of shaft in depth soil are confirmed. The secondary ground pressure of vertical shaft is pointed to exist in sedimentation of soil. The rupture mechanism of shaft lining is explained. Finally, the countermeasure of optimization design of shaft lining structure is presented according to the theory of stress state.