采煤沉陷对泵站平台影响的理论计算与监测对比研究  

Comparative Study on Theoretical Calculation and Monitoring of Mining Subsidence Influence on Platform of Pumping Station

作　　者：化晓锋 HUA Xiaofeng(Shandong Main Line Co.,Ltd.of East Route of South-to-North Water Transfer Project,Jinan,Shandong 250109,China)

机构地区：[1]南水北调东线山东干线有限责任公司,山东济南250109

出　　处：《施工技术（中英文）》2022年第18期104-107,共4页Construction Technology

基　　金：山东省南水北调工程建设指挥部资助项目(2020-045)。

摘　　要：为了探究高庄煤矿开采沉陷对南水北调东线二级坝泵站厂区平台的影响程度,在系统分析厂区平台所在场地工程地质条件的基础上,建立开采计算模型。在此基础上,采用概率积分法计算了开采3煤层后所产生的变形沉降影响范围,理论计算了主要监测点的沉降量,并与实际监测数据进行了对比分析,获得了泵站厂区平台主要位置变形沉降参数和变形梯度,2种方法获得的结果具有很好的一致性。工程实践表明,现有采动沉陷对厂区平台形成的灾害效应有限,不会影响泵站机组的安全运行。In order to study the influence of mining subsidence on the platform of secondary dam pumping station in the east route of South-to-North Water Transfer project, a mining calculation model was established based on the systematic analysis of the engineering geological conditions of the platform site. On this basis, the probability integral method was adopted to calculate the deformation produced by mining No.3 up coal seam after subsidence influence scope, the theoretical calculation of the main monitoring of the subsidence, and compared with the actual monitoring data analysis, the deformation and settlement parameters and deformation gradient of the main positions of the platform in the pumping station were obtained, the results obtained with both methods were in good consistency. The engineering practice shows that the existing mining subsidence disaster effect on platform station is very limited, it will not affect the safe operation of the pumping unit.

关 键 词：二级坝 泵站 开采沉陷 概率积分法 地表沉降 监测 

分 类 号：TV68[水利工程—水利水电工程]