某航电枢纽工程库区防护实例分析
摘要:某航电枢纽库区右侧临近废弃煤矿,库区淹没线范围内存在废弃老窑采空区及煤硐,航电枢纽蓄水后,库水可能通过出露煤硐及岸坡岩体裂隙向采空区渗漏,影响库区正常蓄水。通过调查测绘、工程地质钻探、工程物探(高密度电法)等多种工程勘察方法查明了煤层、采空区及煤硐的分布位置,制定并实施了废弃煤硐注浆封堵、防渗帷幕与防渗挡墙相结合的防护方案。通过试验验证了防渗工程的有效性,保证了库区正常蓄水的安全,对于类似的工程具有一定的借鉴意义。
Abstract:The right side of the hub project reservoir area is adjacent to an abandoned coal mine. There are abandoned goafs and coal tunnels within the inundation line of the storage area. After impoundment of navigation power junction, the reservoir water may leak into the goafs through exposed coal tunnels and bank slope rock fractures, affecting the normal water storage in the area. Through various engineering survey methods such as surveying and mapping, geological drilling, and geophysical exploration (high-density electrical method), the distribution positions of coal seams, goafs, and coal tunnels were identified. A protection plan combining grouting and sealing of abandoned coal tunnels, anti-seepage curtains, and anti-seepage retaining walls was developed and implemented. The effectiveness of anti-seepage engineering has been verified through experiments, ensuring the safety of normal water storage in the reservoir area, which has certain reference significance for similar projects.
中文标题:
某航电枢纽工程库区防护实例分析
A Reservoir Protection Engineering Case of Navigation and Power Junction Project
作者:
侯俊伟,左利兵,徐文腾
Hou Junwei,Zuo Libing,Xu Wenteng
作者简介:侯俊伟,男,1983年生,汉族,山东淄博人,工程硕士,教授级高级工程师,从事岩土工程勘察、设计、咨询工作。E-mail:116338270@qq.com
通讯地址:
中煤科工重庆设计研究院(集团)有限公司,重庆 400016
CCTEGChongqingEngineeringCo.,Ltd.,Chongqing400016,China
中图分类号:P 642; TV 22
doi:10.3969/j.issn.1007-2993.2023.04.002
出版物:岩土工程技术
收稿日期:2022-04-26
修回日期:2022-06-23
录用日期:2022-12-09
刊出日期:2023-08-08
关键词:采空区,高密度电法,工程勘察,防渗帷幕,压水试验
Key words:goaf,high density electrical method,engineering investigation,anti-seepage curtain,water pressure test
文档包含图片数量:图片(8)张
文档包含表格数量:表格(2)个
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