洛巴索夫稳定系数在基坑开挖中的应用研究

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	作者：向海辉 ; 支铮 关键词：基坑开挖 ; 主动土压力 ; 洛巴索夫图解法 ; 静力平衡条件 英文关键词：foundation pit excavation;;active earth pressure;;Lobasov graphic method;;static equilibrium condition 中文刊名：CXYY 英文刊名：Technology Innovation and Application 机构：中咨公路养护检测技术有限公司; 出版日期：2019-06-06 出版单位：科技创新与应用 年：2019 期：No.273 语种：中文; 页：CXYY201917003 页数：3 CN：17 ISSN：23-1581/G3 分类号：13-14+17

摘要

从基坑开挖稳定性的计算方法着手,运用滑动面静力平衡条件法,对洛巴索夫稳定系数图中稳定系数的准确性进行验证,分析了洛巴索夫图解法在基坑工程中的应用范畴,为洛巴索夫图解法在基坑工程中的施工应用提供相应的指导。经过计算分析,证明了在进行基坑开挖时,洛巴索夫图解法既简单实用,又偏于安全。同时还阐述了土体的重度、土体的抗剪强度参数的测定以及合理的坡角设计在保证基坑开挖稳定性中的必要性。
        Starting with the calculation method of foundation pit excavation stability, the accuracy of stability coefficient in Lobasov stability coefficient diagram is verified by using sliding surface static equilibrium condition method, and the application category of Lobasov graphic method in foundation pit engineering is analyzed. The purpose of this paper is to provide corresponding guidance for the construction application of Lobasov graphic method in foundation pit engineering. Through calculation and analysis, it is proved that the Lobasov graphic method is not only simple and practical, but also safe in foundation pit excavation. At the same time, it also expounds the necessity of the weight of the soil, the determination of the shear strength parameters of the soil and the reasonable slope angle design in ensuring the stability of foundation pit excavation.

引文

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