煤矿采动影响下地表建筑物安全评价
Safety Evaluation of Surface Buildings Under the Influence of Coal Mining
李振发1
作者信息
- 1. 山西华宁焦煤有限责任公司,山西 临汾 042100
- 折叠
摘要
针对王家岭煤矿高强度开采对地表建筑物安全构成威胁问题,进行了安全评价研究,提出熵权-模糊综合评价法对地表建筑物安全进行评价,确定包括地表移动变形和建筑物自身属性的评价指标体系;地表移动变形选定为地表下沉、倾斜、曲率和水平变形 4 种二级指标,建筑物自身属性则细分为建筑物结构、建筑物地基、建筑物建造时间及与工作面的相对关系4 个二级指标;采用熵权法确定各指标权重,并构建模糊矩阵,利用模糊综合评价模型对5 座建筑物进行了分析.结果表明,王家岭煤矿采动对地表建筑物的影响程度为"一般",通过实地调研,证实了熵权-模糊综合评价法的科学性和可靠性,为类似工程项目的决策提供了可靠的技术支持.
Abstract
In view of the threat posed by high-intensity mining in Wangjialing Coal Mine to the safety of surface buildings,a safety evaluation study is conducted.The entropy weight-fuzzy comprehensive evaluation method is proposed to evaluate the safety of surface buildings,and an evaluation index system including surface movement deformation and buildings self attributes is determined;Surface movement and deformation are selected as four types of secondary indices:surface subsidence,inclination,curvature,and horizontal deformation.The self attributes of buildings are subdivided into four secondary indices:building structure,building foundation,building construction time,and relative relationship with the working face;The entropy weight method is used to determine the weights of each index,and a fuzzy matrix is constructed.The fuzzy comprehensive evaluation model is used to analyze 5 buildings.The results indicate that the impact degree of Wangjialing Coal Mine mining on surface buildings is"moderate".Through field research,the scientificity and reliability of the entropy weight-fuzzy comprehensive evaluation method are confirmed,providing reliable technical support for decision-making in similar engineering projects.
关键词
井下采动/地表/建筑物/熵权法/模糊数学Key words
downhole mining/surface/building/entropy weight method/fuzzy mathematics引用本文复制引用
出版年
2024
国家科技期刊平台
NSTL
万方数据