【摘要】：泥石流是山區(qū)常見(jiàn)的地質(zhì)災(zāi)害之一,由于其具有的發(fā)生速度快、突發(fā)性強(qiáng)、破壞力大等特點(diǎn),經(jīng)常對(duì)活動(dòng)區(qū)內(nèi)的人造成巨大的生命威脅和經(jīng)濟(jì)損失,也破壞周圍的生態(tài)環(huán)境。而礦山排土場(chǎng)泥石流是因?yàn)樵谏絽^(qū)開發(fā)礦產(chǎn)資源時(shí),排放的廢石、廢棄土等在礦山周圍堆棄而引起的人工泥石流,除去具有泥石流的特點(diǎn)外,還具有堆積速度快、排放比較集中等特點(diǎn),而且其規(guī)模受該礦山開發(fā)強(qiáng)度與排土場(chǎng)規(guī)模的控制,一旦發(fā)生泥石流,則對(duì)礦區(qū)及其周邊地區(qū)造成重大的生命財(cái)產(chǎn)損失。通過(guò)對(duì)三友礦山排土場(chǎng)的地層巖性、地質(zhì)構(gòu)造、水文地質(zhì)等條件的勘探,并了解其物理力學(xué)性質(zhì),結(jié)合Geostudio軟件,對(duì)排土場(chǎng)邊坡的穩(wěn)定性進(jìn)行分析。通過(guò)SEEP/W模塊和SLOPE/W模塊相結(jié)合,分析三友礦山排土場(chǎng)在降雨條件下邊坡的穩(wěn)定性變化情況;通過(guò)QUAKE/W模塊和SLOPE/W模塊相結(jié)合,分析三友礦山排土場(chǎng)在地震作用下邊坡的穩(wěn)定性變化情況;通過(guò)上述三個(gè)模塊相結(jié)合,分析三友礦山排土場(chǎng)在降雨與地震耦合作用下邊坡的穩(wěn)定性情況。據(jù)此得出排土場(chǎng)邊坡穩(wěn)定性隨降雨強(qiáng)度、降雨歷時(shí)、地震烈度變化而變化的一般規(guī)律,分析三友礦山排土場(chǎng)發(fā)生礦山泥石流的影響因素,以及一般性規(guī)律,為三友礦山排土場(chǎng)泥石流的防治提供理論依據(jù)。
[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.
【學(xué)位授予單位】：華北理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2015
【分類號(hào)】：P642.23
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本文編號(hào)：2242818