复杂地质条件下滑坡的稳定性分析与综合治理研究
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摘要
滑坡稳定性问题一直是岩土工程界的一个重要研究课题,它所涉及的工程领域较广泛。滑坡是一种最常见的地质灾害类型,滑坡的产生往往是由于各种不确定因素所造成的,包括外界因素和坡体自身地质水文条件。在自然状态下,坡体一般处于稳定状态,但在暴雨或者人为活动等外界因素影响的情况下,坡体才会失稳滑动。为了更好地保护人们的生命财产安全,在坡体产生整体失稳滑动之前,应采取有效的加固措施,阻止其进一步发展。
本文对复杂地质条件下的滑坡的稳定性进行了分析评价,并提出有效的治理方案。开展的主要工作如下：
介绍了目前国内外滑坡的研究发展和现状,以及滑坡处治方面的现状、水平和发展趋势,指出滑坡综合治理研究的重要性和必要性。
以流星岭滑坡治理工程为依托,对滑坡的稳定性和综合治理技术进行了分析研究。通过对流星岭滑坡的工程地质条件、水文地质条件、滑坡特征、滑坡成因机制进行分析研究,表明滑面位于岩土交界面上,属于牵引式滑坡。
通过定性和定量方法对流星岭滑坡的稳定性进行了深入研究。采用传递系数法对流星岭滑坡体稳定性进行分析评价,计算结果表明,流星岭滑坡在天然状态下处于基本稳定状态,一旦发生降雨或者人为的工程活动,都将会使坡体失稳下滑。
根据滑坡体稳定性分析,综合考虑各项设计指标,提出了一套综合治理方案,指出了边坡施工中过程稳定性的重要性。
利用FLAC软件进行了滑坡数值模拟,分析开挖过程中边坡的应力应变状态,模拟结果表明锚杆能有效控制滑坡的继续变形,起到良好的处治效果。
The stability of landslides has long been and still is an important problem, which needing research in the geotechnical field. The problem of landslide stability is involved the security of many engineering projects in various sectors. As natural geological hazard, it is affected by many uncertain factors, include environment and geology conditions. In the nature, slope is always in the stability condition. But when it effect by the storm or human activity, it will slide.In order to protect people's lives and their properties,in fornt of the slope slipe, it's need to adopt an effective reinforcement measure, to prevent more develop.
The paper do research on stability appraisal of landslide under complicated geology conditions, and put forward an effective treatment. The main work of this paper contain.
The paper introduced now domestic and international in slope stability research, consolidate punish level and develop tendency, put forward the importance and necessity of slope stability mechanism research.
Do the research on the geology condition, hydrology condition, landslide characteristic, landslide cause. The result show that landslide produced on the interface of rock which belong to pull-type landslide.
The paper do qualitative and quantitative research on landslide stability. Ddepending on Liuxingling landslide, do research on stability analysis and comprehensive treating.The paper applied the coefficient transmits method to do research on stability analysis, calculating results show that the landslide is stabilization in nature, It will slide by rainstorm or artificial activity.
By the stability analysis, considering all the design specifications, proposed a suit of the control programs. It turns out that it is important of the slope stability of the construction.
The stress and strain state analysis during excavation been made by means of numerical modeling via FLAC. As a followed strengthening method, the anchor proves useful in increasing skid resistance and controlling deformation of slope through modeling.
本文对复杂地质条件下的滑坡的稳定性进行了分析评价,并提出有效的治理方案。开展的主要工作如下：
介绍了目前国内外滑坡的研究发展和现状,以及滑坡处治方面的现状、水平和发展趋势,指出滑坡综合治理研究的重要性和必要性。
以流星岭滑坡治理工程为依托,对滑坡的稳定性和综合治理技术进行了分析研究。通过对流星岭滑坡的工程地质条件、水文地质条件、滑坡特征、滑坡成因机制进行分析研究,表明滑面位于岩土交界面上,属于牵引式滑坡。
通过定性和定量方法对流星岭滑坡的稳定性进行了深入研究。采用传递系数法对流星岭滑坡体稳定性进行分析评价,计算结果表明,流星岭滑坡在天然状态下处于基本稳定状态,一旦发生降雨或者人为的工程活动,都将会使坡体失稳下滑。
根据滑坡体稳定性分析,综合考虑各项设计指标,提出了一套综合治理方案,指出了边坡施工中过程稳定性的重要性。
利用FLAC软件进行了滑坡数值模拟,分析开挖过程中边坡的应力应变状态,模拟结果表明锚杆能有效控制滑坡的继续变形,起到良好的处治效果。
The stability of landslides has long been and still is an important problem, which needing research in the geotechnical field. The problem of landslide stability is involved the security of many engineering projects in various sectors. As natural geological hazard, it is affected by many uncertain factors, include environment and geology conditions. In the nature, slope is always in the stability condition. But when it effect by the storm or human activity, it will slide.In order to protect people's lives and their properties,in fornt of the slope slipe, it's need to adopt an effective reinforcement measure, to prevent more develop.
The paper do research on stability appraisal of landslide under complicated geology conditions, and put forward an effective treatment. The main work of this paper contain.
The paper introduced now domestic and international in slope stability research, consolidate punish level and develop tendency, put forward the importance and necessity of slope stability mechanism research.
Do the research on the geology condition, hydrology condition, landslide characteristic, landslide cause. The result show that landslide produced on the interface of rock which belong to pull-type landslide.
The paper do qualitative and quantitative research on landslide stability. Ddepending on Liuxingling landslide, do research on stability analysis and comprehensive treating.The paper applied the coefficient transmits method to do research on stability analysis, calculating results show that the landslide is stabilization in nature, It will slide by rainstorm or artificial activity.
By the stability analysis, considering all the design specifications, proposed a suit of the control programs. It turns out that it is important of the slope stability of the construction.
The stress and strain state analysis during excavation been made by means of numerical modeling via FLAC. As a followed strengthening method, the anchor proves useful in increasing skid resistance and controlling deformation of slope through modeling.
引文
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