發(fā)布時間：2018-02-26 08:25

  本文關鍵詞： 滑坡 穩(wěn)定性 場地評價　出處：《成都理工大學》2015年碩士論文　論文類型：學位論文

【摘要】：竹林溝滑坡是典型的土質滑坡;該滑坡目前整體穩(wěn)定,在暴雨工況下局部失穩(wěn)。坡體上民房數量較多,受滑坡變形影響部分民房墻體開裂、局部傾斜、失穩(wěn)甚至倒塌;給當地村民造成了巨大的經濟損失。國內外對處于這一階段的滑坡變形破壞力學機制模式的形成條件與演化過程研究比較成熟。然而對穩(wěn)定斜坡向滑坡轉換過程中所造成的建筑物破壞因素及預防措施研究很少。本文以四川古藺縣竹林溝滑坡為研究對象,以滑坡穩(wěn)定性與場地可利用評價為主題。通過現(xiàn)場勘查、調查走訪,結合室內實驗,用數值模擬和極限平衡法法對竹林溝滑坡進行計算分析;根據計算結果提出相應的的預防治理措施。本文的主要研究成果如下:(1)分析了誘發(fā)滑坡產生的內外因素,并對其變形破壞機制進行了深入分析。(2)通過極限平衡法對滑坡的穩(wěn)定性進行計算分析。利用Geo-studio軟件模擬了由降雨入滲引起滑坡初期滑動時的應力應變和滑坡穩(wěn)定性系數的變化;同時也計算了現(xiàn)階段滑坡的穩(wěn)定性。(3)深入分析了滑坡體上地表裂縫和建筑物破壞之間的相互關系。計算分析了建筑物地基在多種裂縫時的穩(wěn)定性;并提出了相應的預防措施。(4)通過采取相應的預防措施后。根據穩(wěn)定性計算結果,查閱相關的規(guī)范,對竹林溝滑坡的建設場地可利用性進行了評價,竹林溝滑坡建設場地為二級場地(中等復雜場地),建設場地對建筑抗震為不利地段,場地類別為II類。該建設場地上適宜修建丙類建筑。
[Abstract]:The Zhulingou landslide is a typical soil landslide, which is stable at present, and is unstable locally under the condition of heavy rain. The number of houses on the slope is large, some of the walls are cracked, partial tilt, instability and even collapse are affected by the deformation of the landslide. The research on the formation conditions and evolution process of the landslide deformability mechanism model at this stage is more mature. However, the transformation process from stable slope to landslide is relatively mature. There are few studies on the factors of building damage and prevention measures. This paper takes the Zhulingou landslide in Gulin County, Sichuan Province, as the object of study. Taking the stability of landslide and the evaluation of site availability as the theme, the paper calculates and analyzes the Zhulingou landslide by numerical simulation and limit equilibrium method, through site investigation, investigation and visit, combined with indoor experiments. According to the results of the calculation, the corresponding preventive measures are put forward. The main research results of this paper are as follows: (1) the internal and external factors causing the landslide are analyzed. The mechanism of deformation and failure is analyzed deeply. The stability of landslide is calculated and analyzed by limit equilibrium method. The variation of stress strain and landslide stability coefficient during the initial sliding induced by rainfall infiltration is simulated by Geo-studio software. At the same time, the stability of the landslide at present is calculated.) the relationship between the surface crack and the failure of the building on the landslide body is analyzed deeply, and the stability of the building foundation under the condition of multiple cracks is calculated and analyzed. And put forward the corresponding preventive measures. 4) after taking the corresponding preventive measures, according to the stability calculation results, referring to the relevant norms, the availability of the construction site of the Zhulingou landslide is evaluated. The construction site of Zhulingou landslide is a second grade site (middle complex site), the construction site is unfavorable to the earthquake resistance of the building, and the site category is type II. The construction site is suitable for the construction of Class C building.
【學位授予單位】：成都理工大學
【學位級別】：碩士
【學位授予年份】：2015
【分類號】：P642.22

【參考文獻】

相關期刊論文 前4條

1 陳新民,羅國煜,夏佳;邊坡穩(wěn)定性類比評價的定量實現(xiàn)[J];工程地質學報;2000年02期

2 黃滿剛;孫世國;;邊坡穩(wěn)定性分析方法的研究[J];礦業(yè)快報;2008年07期

3 張偉;黃偉;祝赫;;基于RMR與SMR法的某邊坡工程巖體質量評價[J];河北農機;2012年04期

4 陳立強;張志軍;;圖解法和數值分析法在露天礦邊坡穩(wěn)定性評價中的應用[J];有色金屬(礦山部分);2012年02期

相關碩士學位論文 前1條

1 劉茂;土質滑坡穩(wěn)定性影響因素的敏感性研究[D];成都理工大學;2011年

，

本文編號：1537235