| 许 泰,曹 强.西峰区巴家咀水库库区、坝址区与坝前区工程地质特征及现状问题研究[J].甘肃地质,2024,(4):55-62 |
| 西峰区巴家咀水库库区、坝址区与坝前区工程地质特征及现状问题研究 |
| Engineering Geological Characteristics of the Reservoir Area, Dam Site Area and Dam Front Area of Bajiazui Reservoir in Xifeng District |
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| DOI： |
| 中文关键词: 库区特征 坝体特征 坝前特征 治理措施 巴家咀水库 西峰区 |
| 英文关键词:mineral prediction ductile shear zone ore control condition target area validation |
| 基金项目:甘肃省教育厅高校教师创新基金项目2023B-201；甘肃省科技计划项目自然科学基金（24JRRM023） |
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| 中文摘要: |
| 在充分收集已有资料和野外实地勘察的基础上，对巴家咀水库的库区、坝址区及坝前区的基础工程地质特征进行系统研究。明确了库区塌岸发生的重点时段、塌岸范围、水库浸没、滑坡、库区淤积和渗漏状况，重点梳理了坝体在变形、裂缝和渗漏等方面存在的问题，并详细分析其成因。同时，评价了坝前土体的压缩变形和淤土的抗滑稳定性。最后，针对巴家咀水库的现状问题，提出巴家咀水库综合治理的初步措施，为解除水库的安全隐患及后期水库除险加固处理方案的制定提供参考。 |
| 英文摘要: |
| The Dadiangou Gold Mine in Liangdang County is located in the western section of the North Qinling Mountains, with the ore bearing strata being the Muqitan Formation of the Danfeng Group in the Sinian Ordovician period. The lithology is sericite green mud quartz schist, and gold mineralization mainly occurs in the 60° ～ 70° trending weathered ductile shear zone, which is mainly developed in the third lithological segment; The main controlling factors of the deposit are the fading alteration ductile shear structural zone+pyrite mineralization+quartz vein, and the ore types are quartz vein type gold ore and altered rock type gold ore. Based on the characteristics of ore control laws and mineralization information, abnormal development of primary halo indicator elements, deep areas with low erosion rates, high-value areas of pyrite thermoelectric coefficient, deep areas, unsealed extension directions of edges, pyrite thermoelectric properties, and the development of altered minerals such as muscovite, chlorite, and illite, as well as fluid inclusion temperature ranges of 170 ℃ ~ 220 ℃, mineral exploration predictions were made. By verifying the two predicted target areas（BQ1 and BQ2）, the verification effect was better, expanding the scale of the ore body and indicating that the deep part of the Dadiangou gold deposit has good prospecting prospects. |
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