Stability Evaluation of Karst Foundation Based on Orthogonal Test

Abstract:

Many State Grid projects of China are facing a series of natural disaster threats, such as landslide, collapse, mud-rock slide, etc. This article takes the Huangshi Daye Steel Substation as research object. Based on the orthogonal test which confirmed factors influencing the stability, it adopts the Numerical Simulation Method and the Roof Thickness-to-span Ratio Method to evaluate the stability of the Huangshi Daye Steel Substations karst foundation. By doing this, karst foundation stability maps of the substation are respectively obtained. Analyzing the stability results of the two methods, it has been found that the stability evaluation results measured by the two methods are the same. And orthogonal test has advantages such as comprehensiveness, speediness, reliability and accuracy. Meanwhile, according to the stability evaluation results, specific site operation suggestions are proposed.

• Periodical: Advanced Materials Research (Volumes 807-809)
• Pages: 1725-1732
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.807-809.1725
• Online since: September 2013
• Authors: Yi Ping Wu, Jian Hong Zhou, Qiu Xia Zhang, Zhong Jie Zhao
• Keywords: Karst Foundation, Orthogonal Test, Stability, Substation

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