摘要
贵州威赫电厂主厂区南侧分布巨型堆积体,为正确评价工程建设活动及邻近煤矿开采影响下堆积体的稳定性,在厂区选址勘察及邻近煤矿资源勘查工作的基础上,通过对堆积体形态特征、物质组成进行深入分析,揭示了该堆积体的成因,并探讨了其在厂区场平施工及煤矿采动影响下的稳定性,结果表明:堆积体为后部山体多次崩塌堆积形成,并非古滑坡堆积体;场地平整施工不会诱发堆积体发生整体失稳,但局部形成的挖方边坡高度大,须进行专项支护设计;煤矿开采对堆积体的整体稳定性影响较小,在采动影响下场地东南侧地表可能发生鼓胀变形,设计需优化建构筑物平面布置。工程实践验证了研究结论的正确性。
On the south of the main plant area of Weihe Power Plant in Guizhou,there is a giant accumulation distributed.In order to correctly evaluate the stability of the accumulation under the influence of engineering construction activities and adjacent coal mining,based on the site selection and adjacent coal mine resource exploration work of the plant area,the morphological characteristics and material composition of the accumulation were analyzed in depth,revealing its formation and exploring its stability under the influence of earthwork construction and coal mining.The results showed that the accumulation was formed by multiple collapses of the rear mountain body,not an ancient landslide accumulation.The construction of earthwork construction will not induce overall instability of the accumulation,but the height of the excavation slope formed locally is large,and special support design is required.Coal mining has a relatively small impact on the overall stability of the accumulation.Under the influence of mining,the surface on the southeast side of the site may experience bulging deformation and the design needs to optimize the building layout.Engineering practice have proven that the research conclusions are correct.
作者
陈金宏
胡应全
王彤标
王刘文
CHEN Jinhong;HU Yingquan;WANG Tongbiao;WANG Liuwen(Guizhou Coal Mine Design Research Institute Co.,Ltd.,Guiyang,Guizhou 550025;Guizhou Coal-based Geological Engineering Co.,Ltd.,Guiyang,Guizhou 550025)
出处
《中国煤炭地质》
2025年第1期35-42,共8页
Coal Geology of China
基金
贵州省煤矿安全高效开采技术支撑与服务人才基地基金项目(GMY-RD2022.KJ-010)。
关键词
堆积体
稳定性
古滑坡
工程活动
采动影响
accumulation
stability
ancient landslide
engineering activities
mining impact
