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首页> 外文会议>Asia Pacific Symposium on Safety; 20051102-04; Shaoxing(CN) >Safety Analysis of Double Span Tunnel Passing Through Karst Cave
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Safety Analysis of Double Span Tunnel Passing Through Karst Cave

机译：双跨隧道穿越岩溶洞穴的安全性分析

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摘要

As the treatments of tunnel passing through karst cave are mostly based on the practice, a theoretic calculated method is adopted to study the problem in this paper. Based on a typical example of double span tunnel which passing through the karst cave with an arched girder at the bottom of it, the method of how to establish the calculated model and how to determine the calculated load are probed, the safety standard of arched girder is put forward, and the safety of the example is judged according to the standard. Then the relationship between the strength of the filler in the karst cave and the internal force and displacement of the arched girder are discussed, the mechanics state and the safety of the arched girder will be improved when the filler in the karst cave are reinforced.
机译：由于隧道穿越岩溶洞穴的处理大多是根据实际情况进行的，因此本文采用理论计算的方法来研究该问题。以一个典型的双跨隧道通过一个底部为拱形梁的喀斯特洞穴为例，探讨了建立计算模型和确定计算荷载的方法，提出了拱形梁的安全标准。提出，并根据标准判断实例的安全性。然后讨论了岩溶洞穴中填充物的强度与拱形梁的内力和位移之间的关系，并通过加固岩溶洞穴中的填充物来改善拱形梁的力学状态和安全性。

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