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Home
Contribution Guide
About Journal
Submission Guidelines
Subscription Notice
Journal News
Editorial Board
Journal Online
Online First
Current Articles
Archive
Most Download
Top View
Top Cited
Advanced Search
Ethics Statement
Open Access Policies
Author Field
中文
ZHAOMinghua, . 非均布路基荷载下溶洞顶板稳定性分析[J]. Hydrogeology & Engineering Geology, 2018, 45(2): 36-43. DOI: 10.16030/j.cnki.issn.1000-3665.2018.02.06
Citation:
ZHAOMinghua, . 非均布路基荷载下溶洞顶板稳定性分析[J]. Hydrogeology & Engineering Geology, 2018, 45(2): 36-43. DOI: 10.16030/j.cnki.issn.1000-3665.2018.02.06
ZHAOMinghua, . 非均布路基荷载下溶洞顶板稳定性分析[J]. Hydrogeology & Engineering Geology, 2018, 45(2): 36-43. DOI: 10.16030/j.cnki.issn.1000-3665.2018.02.06
Citation:
ZHAOMinghua, . 非均布路基荷载下溶洞顶板稳定性分析[J]. Hydrogeology & Engineering Geology, 2018, 45(2): 36-43. DOI: 10.16030/j.cnki.issn.1000-3665.2018.02.06
非均布路基荷载下溶洞顶板稳定性分析
ZHAOMinghua
,
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Abstract
基于Boussinesq解求得在非均布路基荷载作用下溶洞顶板上的附加应力,利用MATLAB采用高阶次函数拟合顶板上附加应力的分布形式;将计算结果与上覆土层和顶板的自重作用相叠加,得到溶洞顶板分别按简支梁、固支梁和悬臂梁计算时的最大弯矩和最大剪力;进而,通过对溶洞顶板最大拉应力和最大剪应力的计算,用以判定溶洞顶板抗弯和抗剪切的稳定性,从而提出一种非均布路基荷载下溶洞顶板的稳定性评价方法。最后,引入稳定系数,从路基荷载的分布形式、溶洞与路基荷载的相对位置、溶洞顶板的厚度以及顶板跨径四个方面进行参数分析;并通过工程算例对比分析,验证本文方法的可行性和合理性。
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