基于联合搜索法的3维土坡滑动面搜索方式及其程序实现
Joint Search Method of Three dimensional Slope Sliding Surface and Program Development
作者：董渝(四川大学 水利水电学院 水力学与山区河流开发保护国家重点实验室)；陈建康(四川大学 水利水电学院 水力学与山区河流开发保护国家重点实验室)；杨志勇(四川大学 水利水电学院 水力学与山区河流开发保护国家重点实验室)；吴震宇(四川大学 水利水电学院 水力学与山区河流开发保护国家重点实验室)；张瀚(四川大学 水利水电学院 水力学与山区河流开发保护国家重点实验室)
Author：Dong Yu(College of Water Resource & Hydropower,State Key Lab.of Hydraulics and Moutain River Eng.,Sichuan Univ.)；Chen Jiankang(College of Water Resource & Hydropower,State Key Lab.of Hydraulics and Moutain River Eng.,Sichuan Univ.)；Yang Zhiyong(College of Water Resource & Hydropower,State Key Lab.of Hydraulics and Moutain River Eng.,Sichuan Univ.)；Wu Zhenyu(College of Water Resource & Hydropower,State Key Lab.of Hydraulics and Moutain River Eng.,Sichuan Univ.)；Zhang Han(College of Water Resource & Hydropower,State Key Lab.of Hydraulics and Moutain River Eng.,Sichuan Univ.)
收稿日期：2016-01-04 年卷（期）页码：2016,48(5):71-77
期刊名称：工程科学与技术
Journal Name：Advanced Engineering Sciences
关键字：3维刚体法分析程序（Slope3D SCU）；联合搜索；土坡3维稳定；GIS平台
Key words：three dimensional rigid body method(slope3D SCU)；joint search；three dimensional stability of dam slope；GIS platform
基金项目：国家自然科学基金资助项目(51109151)
中文摘要
针对现阶段3维土坡滑动面搜索方式存在效率低、容易出现局部极值等问题，基于GIS栅格数据模型，提出以随机搜索确定初始滑动面、以模式搜索确定最终滑动面的3维土坡最危险滑动面搜索方式。结合该搜索方式，开发土坡稳定3维刚体法分析程序(Slope3D SCU)，并通过算例对该程序的稳定性与合理性进行验证。研究表明：该搜索方法不仅避免了安全系数在临界滑动面搜索过程中出现局部极值的情况，同时能提高滑动面搜索效率；该程序计算精度高、稳定可靠。依托狮子坪水电站土石坝监测数据，调用渗透压力实时监测结果，利用该程序对其坝坡在运行工况下3维稳定性进行分析，揭示了该土石坝坝坡的3维稳定特性。研究结果表明,该坝坡在运行工况下安全系数较高，坝坡处于稳定状态。
英文摘要
Based on GIS raster data model,the search method of the most dangerous three dimensional slope sliding surface with random search to determine the initial surface and pattern searh to determine the final surface was proposed.Combined with the search method,the program of slope stability with the analysis of 3D rigid body method was developed and verified by a numerical example to demonstrate the stability and rationality of program.The search illuminated that the search method not only avoided the situation that safety factor appears in local extremum in search progress of critical slip surface,but also improved the search efficiency of slip suerface and the program was highly accurate and stable.Furthermore,based on monitoring data of Shiziping Dam,the three dimensional stability analysis of the dam slope was carried out by the program.The search illuminated that the safety coefficient of dam slope was high under operating conditions and dam slope was in stable state.
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