本文選題：尾礦壩 + 靜力穩(wěn)定性　； 參考：《遼寧科技大學》2014年碩士論文

【摘要】：尾礦庫在礦山的安全生產(chǎn)中扮演著重要的角色，它同時也是一個重大的危險源。大部分尾礦庫具有高勢能的特性并且所處的地理位置非常特殊。其一旦發(fā)生事故，必然會給周邊的環(huán)境帶來嚴重的污染，給下游的人們帶來巨大的經(jīng)濟損失，甚至還會危及下游人們的生命安全。這樣看來，尾礦庫的穩(wěn)定性問題必須引起人們的高度的重視。 本文針對齊大山風水溝尾礦庫的尾礦壩，采用數(shù)值模擬的方式研究其穩(wěn)定性，通過一系列的工作取得以下成果： （1）分別在極限平衡理論和數(shù)值分析理論的基礎(chǔ)上，采用Geo-slope和FLAC3D軟件計算出了尾礦壩的抗滑穩(wěn)定性系數(shù)及潛在滑裂面的位置，并將兩者的結(jié)果進行了對比分析。 （2）采用FLAC3D軟件計算了壩體的單元應(yīng)力水平，得到了壩體單元穩(wěn)定的結(jié)果；模擬了分層填筑的施工工藝并得到了相應(yīng)的固結(jié)沉降結(jié)果，其結(jié)果與理論分析的結(jié)果相吻合。 （3）在動力穩(wěn)定性方面，采用FLAC3D軟件，模擬了壩體在地震作用下的動力響應(yīng)情況。得到的壩體位移大小，殘余變形大小以及可能發(fā)生液化的位置。通過對壩體位移、殘余變形和液化區(qū)的分析，，得到這個尾礦壩動力穩(wěn)定的結(jié)論。
[Abstract]:The tailings reservoir plays an important role in the safe production of mines, and it is also a major hazard source. Most tailings reservoirs have high potential energy and are located in a very special geographical position. Once the accident occurs, it will inevitably bring serious pollution to the surrounding environment, bring huge economic losses to the downstream people, and even endanger the lives of the downstream people. In this way, the stability of the tailings reservoir must be attached great importance to. In this paper, the stability of Qidashan Fengshuigou tailings dam is studied by numerical simulation, and the following results are obtained through a series of work: 1) on the basis of limit equilibrium theory and numerical analysis theory, Geo-slope and FLAC3D software are used to calculate the stability coefficient of the tailings dam and the location of the potential slip surface, and the results are compared and analyzed. 2) the stress level of the dam is calculated by using FLAC3D software, and the stability of the dam is obtained, and the construction technology of layered construction is simulated and the result of consolidation and settlement is obtained. The results are in agreement with the results of theoretical analysis. In the aspect of dynamic stability, the dynamic response of dam body under earthquake action is simulated by FLAC3D software. The displacement, residual deformation and the position of liquefaction are obtained. The dynamic stability of the tailings dam is obtained by analyzing the displacement, residual deformation and liquefaction zone of the tailings dam.
【學位授予單位】：遼寧科技大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：TV649

【參考文獻】

相關(guān)期刊論文 前4條

1 欒茂田,漒橖惠三;關(guān)于巖土工程研究中若干基本力學問題的思考[J];大連理工大學學報;1999年02期

2 何廣訥;砂土振動孔隙水壓力的研究[J];水利學報;1983年08期

3 謝定義,張建民;往返荷載下飽和砂土強度變形瞬態(tài)變化的機理[J];土木工程學報;1987年03期

4 謝定義,張建民;周期荷載下飽和砂土瞬態(tài)孔隙水壓力的變化機理與計算模型[J];土木工程學報;1990年02期

本文編號：1963677