三友矿山排土场泥石流触发条件研究
发布时间：2018-09-14 13:16
【摘要】：泥石流是山区常见的地质灾害之一,由于其具有的发生速度快、突发性强、破坏力大等特点,经常对活动区内的人造成巨大的生命威胁和经济损失,也破坏周围的生态环境。而矿山排土场泥石流是因为在山区开发矿产资源时,排放的废石、废弃土等在矿山周围堆弃而引起的人工泥石流,除去具有泥石流的特点外,还具有堆积速度快、排放比较集中等特点,而且其规模受该矿山开发强度与排土场规模的控制,一旦发生泥石流,则对矿区及其周边地区造成重大的生命财产损失。通过对三友矿山排土场的地层岩性、地质构造、水文地质等条件的勘探,并了解其物理力学性质,结合Geostudio软件,对排土场边坡的稳定性进行分析。通过SEEP/W模块和SLOPE/W模块相结合,分析三友矿山排土场在降雨条件下边坡的稳定性变化情况;通过QUAKE/W模块和SLOPE/W模块相结合,分析三友矿山排土场在地震作用下边坡的稳定性变化情况;通过上述三个模块相结合,分析三友矿山排土场在降雨与地震耦合作用下边坡的稳定性情况。据此得出排土场边坡稳定性随降雨强度、降雨历时、地震烈度变化而变化的一般规律,分析三友矿山排土场发生矿山泥石流的影响因素,以及一般性规律,为三友矿山排土场泥石流的防治提供理论依据。
[Abstract]:Debris flow is one of the most common geological disasters in mountainous areas. Because of its characteristics of rapid occurrence, sudden occurrence and great destructive power, debris flow often causes huge life threats and economic losses to the people in the active area, and also destroys the surrounding ecological environment. And the debris flow in the mine dump is caused by the artificial debris flow caused by the dumping of waste rock and abandoned soil around the mine when the mineral resources are exploited in the mountainous area. In addition to the characteristics of the debris flow, the debris flow also has a rapid accumulation speed. The discharge is relatively concentrated and its scale is controlled by the development intensity and dump scale of the mine. Once debris flow occurs it will cause great loss of life and property to the mining area and its surrounding areas. Based on the exploration of strata lithology, geological structure, hydrogeology and other conditions of the dump of Sanyou Mine, and the physical and mechanical properties of the dump, the stability of the dump slope is analyzed with Geostudio software. Through the combination of SEEP/W module and SLOPE/W module, the stability change of slope in Sanyou mine dump under rainfall condition is analyzed, and the combination of QUAKE/W module and SLOPE/W module, The stability of slope in Sanyou mine dump under earthquake action is analyzed, and the slope stability of Sanyou mine dump under the coupling of rainfall and earthquake is analyzed through the combination of the above three modules. Based on this, the general law of slope stability changing with the change of rainfall intensity, rainfall duration and earthquake intensity is obtained, and the influencing factors and general rules of mine debris flow in Sanyou mine dump are analyzed. It provides a theoretical basis for the prevention and control of debris flow in the dump of Sanyou Mine.
【学位授予单位】：华北理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P642.23
，
本文编号：2242818
[Abstract]:Debris flow is one of the most common geological disasters in mountainous areas. Because of its characteristics of rapid occurrence, sudden occurrence and great destructive power, debris flow often causes huge life threats and economic losses to the people in the active area, and also destroys the surrounding ecological environment. And the debris flow in the mine dump is caused by the artificial debris flow caused by the dumping of waste rock and abandoned soil around the mine when the mineral resources are exploited in the mountainous area. In addition to the characteristics of the debris flow, the debris flow also has a rapid accumulation speed. The discharge is relatively concentrated and its scale is controlled by the development intensity and dump scale of the mine. Once debris flow occurs it will cause great loss of life and property to the mining area and its surrounding areas. Based on the exploration of strata lithology, geological structure, hydrogeology and other conditions of the dump of Sanyou Mine, and the physical and mechanical properties of the dump, the stability of the dump slope is analyzed with Geostudio software. Through the combination of SEEP/W module and SLOPE/W module, the stability change of slope in Sanyou mine dump under rainfall condition is analyzed, and the combination of QUAKE/W module and SLOPE/W module, The stability of slope in Sanyou mine dump under earthquake action is analyzed, and the slope stability of Sanyou mine dump under the coupling of rainfall and earthquake is analyzed through the combination of the above three modules. Based on this, the general law of slope stability changing with the change of rainfall intensity, rainfall duration and earthquake intensity is obtained, and the influencing factors and general rules of mine debris flow in Sanyou mine dump are analyzed. It provides a theoretical basis for the prevention and control of debris flow in the dump of Sanyou Mine.
【学位授予单位】：华北理工大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P642.23
，
本文编号：2242818
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