毗邻尾矿库的排土场稳定性研究-以西源岭排土场为例  

Study on the Slope Stability of the Waste Dump with Adjacently to the Tailings Pond-Take Xiyuanling Waste Dump as An Example

作　　者：尹洪武 夏重华[2] 朱耿德 朱耿刚 葛鑫博 侯振坤 YIN Hong-wu;XIA Zhong-hua;ZHU Geng-de;ZHU Geng-gang;GE Xin-bo;HOU Zhen-kun(Guangzhou Expressway Co.,Ltd.,Guangzhou 510555;Harbin Sport University,Harbin 150096;School of Civil Engineering and Architecture,Anhui University of Technology,Ma’anshan 243002;China Railway Jinan Group Co.,Ltd.Yanzhou Public Works section,Jining 272100;College of energy and mining engineering,Shandong University of Science and Technology,Qingdao 266590;Guangzhou Institute of Building Science Group Co.,Ltd.,Guangdong 510440)

机构地区：[1]广州市高速公路有限公司,广州510555 [2]哈尔滨体育学院,哈尔滨150096 [3]安徽工业大学建筑工程学院,马鞍山243002 [4]中国铁路济南局集团有限公司兖州工务段,济宁272100 [5]山东科技大学能源与矿业工程学院,青岛266590 [6]广州市建筑科学研究院集团有限公司,广州510440

出　　处：《广州建筑》2022年第2期7-12,共6页GUANGZHOU ARCHITECTURE

基　　金：山东省自然科学基金青年基金项目,ZR2020QE112;岩土力学与工程国家重点实验室开放基金课题(Z019011,Z019018);广东省基础与应用基础研究基金区域联合基金-青年基金项目(2019A1515110836);中国博士后科学基金(No.2019M662918、2020M682671)。

摘　　要：排土场的稳定性是矿山安全和生产的重要部分。本研究对排土场散体材料进行了室内大型三轴试验,研究了饱和试样和非饱和试样的抗剪强度和强度参数。基于极限平衡理论,研究了毗邻尾矿库和降雨条件下对排土场稳定性的影响。结果表明:散体材料试样饱和后,试样黏聚力增大,内摩擦角减小;当强降雨导致整个排土场处于饱和状态时,安全系数降低到不符合排土场设计标准;与尾矿库相邻,可以提高排土场的稳定性。研究成果可为毗邻尾矿库的矿山排土场的施工及稳定性研究提供一定的理论参考。The stability of the dump site has an important effect on mine safety and production.In this study,the indoor large-scale triaxial tests were carried out for the granular materials of the waste dump.The shear strength and strength parameters for saturated and unsaturated samples were studied.According to the limit equilibrium theory,the effect of the conditions of the existence of tailings pond,the raising of water level and rainfall on the stability of the dump were investigated.The results indicate that the cohesion of the discrete material samples increases through saturation,and the internal friction angle decreases.When rainfall causes the granular materials to saturate,the safety factor is reduced to mot meet the design standards of the waste dump.The stability of the waste dump will be enhanced with adjacently to the tailings pond.The research results can provide a theoretical reference for the construction and stability study of mine waste dumps.

关 键 词：排土场 散体材料 尾矿库 边坡稳定性 三轴试验 

分 类 号：U455.6[建筑科学—桥梁与隧道工程]