工程项目中岩溶发育强度的有效估计  

Effective Estimation of Karst Development Intensity in Engineering Projects

作　　者：彭功勋 宋健 许韬 赵旭光 刘晓婷 艾群 Peng Gongxun;Song Jian;Xu Tao;Zhao Xuguang;Liu Xiaoting;Ai Qun(Guangzhou Municipal Engineering Design&Research Institute,Guangzhou 510060,Guangdong,China)

机构地区：[1]广州市市政工程设计研究总院有限公司,广东广州510060

出　　处：《岩土工程技术》2024年第4期471-476,共6页Geotechnical Engineering Technique

摘　　要：基于岩溶的空间分布特征,对岩溶在水平方向上的分布不均一性和垂直分带性特征进行总结,并分析其对岩溶率统计的影响。以某地埋式污水厂的勘察数据为基础,分析了见洞隙率、线岩溶率的垂直分带性,并基于抽样误差原理,分析了不同勘察阶段见洞隙率、线岩溶率统计数据间的概率关系。研究认为,各勘察阶段应在充分考虑岩溶发育的水平向不均一性、垂直分带性基础上,结合钻遇灰岩孔数、入岩深度等实际情况,通过区间估计的方式对岩溶率进行有效估计。Based on the spatial distribution characteristics of karst,the horizontal uneven distribution and vertical zonation characteristics of karst were summarized,and their impact on karst rate statistics was analyzed.Based on the investigation data of a buried sewage plant,the vertical zonation of voids and line karstification rates were analyzed.Furthermore,the probability relationship between the statistical data of borehole porosity rate and liner karst rate was analyzed according to the principle of sampling error.It is considered that the horizontal heterogeneity and vertical zonation of karst development,as while as the actual number of limestone holes and the depth of rock drilled,should be taken into account in each exploration stage.Therefore,the karstification rate is effectively estimated using interval estimation.

关 键 词：岩溶空间分布 垂直分带性 见洞隙率 线岩溶率 抽样误差 

分 类 号：P642.25[天文地球—工程地质学]