地表岩溶地貌分形特征对隧道工程建设作用初探  

Influence of Fractal Characteristics of a Surface Karst Landform on Tunnel Construction

作　　者：高伟[1] 漆继红[1] 许模[1] 李豫馨 王能峰[2] 

机构地区：[1]成都理工大学地质灾害防治与地质环境保护国家重点实验室,成都610059 [2]中国电建成都勘测设计研究院有限公司,成都610072

出　　处：《现代隧道技术》2016年第2期35-43,共9页Modern Tunnelling Technology

基　　金：国家自然科学基金(多源同汇地下水流系统水动力弥散混合特征砂槽模型研究;项目批准号:41402223)

摘　　要：基于不同岩溶阶段下峰体形态参数特征及地表岩溶形态的分形特征对地下岩溶发育程度的指示,采用形态参数统计和分形分维的方法对岩溶隧道区地表岩溶形态进行研究,分析了不同岩溶发育阶段、发育强度下隧道工程建设的工程地质条件,并提出了相应的工程处理措施。同时,以滇中白虎山隧道区为例,通过峰体形态参数统计获得隧址区为岩溶发育幼年至壮年早期岩溶地貌,通过地表岩溶洼地及等高线分形特征进一步对各地层岩溶发育的强弱进行分析,并对地下岩溶形态进行了预测,基于此对研究区隧道施工提出了合理性建议。Based on the characteristics of peak morphological parameters under different stages of karst develop-ment and the indicative effect of fractal characteristics of surface karst to the development of underground karst, thispaper studies the morphology of ground karst in a karst tunnel area by using morphological parameter statistics andfractal theory, analyzes engineering geological conditions under different development stages and intensities ofkarst, and proposes relevant measures. Using the Baihushan tunnel in Yunnan as an example, the karst morphologyof a tunnel area is determined from early to mature stages through peak morphological parameter statistics, a furtheranalysis of the karst development degree of different strata is performed based on the fractal characteristics of thekarst depression and contour line, the underground karst morphology is predicted and rational suggestions concern-ing tunnel construction are provided.

关 键 词：形态参数 地表岩溶 分形特征 发育强度 隧道工程 

分 类 号：U452.11[建筑科学—桥梁与隧道工程]