洞室交叉部位塌方的处理技术

Techniques of Settling Collapse at Grotto's Intersection

洞室交叉部位情况复杂、应力集中程度高,容易发生塌方等各种事故,而且该处塌方治理不仅工作量大,难度也很高。文章在对塌方进行分类的基础上,分析了洞室不同部位塌方的特点,总结了“先拱法”治理洞室交叉部位塌方的一般步骤和技术要点,并通过实例介绍了洞室交叉部位塌方处理的成功经验。

Collapse easily occurs at grotto's intersection due to the complex state and highly centralized stress. Settling collapse in this area is a heavy and hard job. In this paper, the author analyzed the features of collapses happened at different parts of grotto based on classification of collapses, summarized the common process and technical gist of arch-precursor method in settling collapse at grotto's intersection, introduced successful experience by applying this method to settle collapse at certain part of grotto.