大跨度地下洞室集成化围岩分类体系构建及可视化程序实现  

Establishment and Visualization of an Integrated Surrounding-Rock Classification System for Large-Span Underground Caverns

作　　者：申艳军[1] 徐光黎[2] 魏志云[3] 

机构地区：[1]西安科技大学建筑与土木工程学院,西安710054 [2]中国地质大学工程学院,武汉430074 [3]中国水电工程顾问集团华东勘测设计研究院,杭州310014

出　　处：《现代隧道技术》2014年第4期28-38,共11页Modern Tunnelling Technology

基　　金：中国博士后科学基金面上资助项目(No.2013M532070);陕西省教育厅专项科研计划项目(No.2013JK0948);西安科技大学校级科研培育基金项目(No.201232)

摘　　要：文章通过整合目前国内外常用的围岩分类方法，对各分类方法评价指标、评价标准进行了相关性分析研究．从内核建立了分类方法等效换算公式、经验性关联图表；且针对大跨度地下洞室工程扰动影响作用的显著特征．依据“有限性劣化”处理思路，提出了工程因素对围岩质量劣化效应的定量表示法，藉此构建了可反映工程因素影响的集成化围岩分类体系；应用VB．Net语言编制了“大跨度地下洞室集成化围岩分类体系（IRMCS）”可视化程序。该程序可实现“一次输入，多种分类方法评价结果输出”；最后，以大岗山水电站主厂房顶拱厂横0—60~0＋166m围岩为例．应用该程序对其围岩分类、稳定性结果、支护建议予以综合评价，分析结果与实际情况吻合度较好。Commonly used surrounding-rock classification methods were integrated, and the correlation among the evaluation indexes and criteria of each method was analyzed to establish the equivalent conversion formulae and empirical correlation charts in terms of various classification methods based on the inherent essence. Considering the significant disturbance effect caused by large-span underground caverns, a quantitative representation regarding the impacts of the engineering factors on the quality deterioration of surrounding rock is presented based on the limited deterioration principle, and an integrated surrounding-rock classification system considering the engineering factors was established. A visualization program for an integrated surrounding-rock classification system for large-span underground caverns （ISRCS） was developed based on VB.Net language. This program can realize the typical function, namely inputting parameters and outputting various evaluation results at the same time. By using the arch of the main powerhouse of the Dagangshan hydropower station at section 0-60- 0＋166 as an example, a comprehensive assessment was carried out by this program regarding surrounding-rock classification, stability results, and support recommendations, and the analysis results agree well with the actual conditions.

关 键 词：地下洞室 围岩分类 关联性 工程因素 可视化程序 

分 类 号：U452.12[建筑科学—桥梁与隧道工程]