| JiZheng ZhongYuan town landslide is located in Ankang City Hanbin District Zhongyuan town JiZhen LianHe village four groups of Dongpo-Jiangoukou area.The landslide in accordance with the provisions of the provisions of medium-sized landslides,which in history there have been many instability sliding,threatening the local people living under the slope of normal life.Therefore,this paper takes the landslide of Zhongyuan town JiZheng as the research object,and uses the field survey,exploration and indoor experiment.The numerical simulation analysis is carried out with the finite element software(Midas GTS NX).The landslide is put forward under the control scheme of anti-Optimal model design.The main research results are as follows:(1)According to the survey and experience analysis of the landslide site of the JiZhen of Zhongyuan town,and the landslide is divided into three sections,the landslide ?-? 'section is the most unstable area.At this point the overall stability of the landslide is underdeveloped.(2)Based on the principle of anti-slide pile support,the paper selects the suitable anti-slide pile support scheme,and combines the geotechnical software to carry out the antiWait.Finally,the following three different pile size of the pile layout.(3)According to the above conclusions,the Midas GTS NX simulation analysis of three different anti-slide piles is carried out by using the geotechnical numerical analysis software.Under the simulation of the software,the optimal scheme is selected to carry out the Central Plains The governance of town town landslide.The three different pile schemes were simulated by Midas GTS NX,and the stability of the landslide after two kinds of different conditions was compared.(1)in the use of a pile of the program,whether it is natural conditions or heavy rain conditions,the use of the anti-slide pile reinforcement can meet the engineering requirements,the overall stability of the landslide.Anti-slide pile also played a role in supporting.(2)In the application of the two-pile scheme,we can find that the stability of the whole landslide has been reduced,but the landslide is still in steady state both in natural and heavy rain conditions.In contrast to the results of the scheme,there is a certain degree of deformation in the local area of the slope,and the stress near the anti-slide pile is increased,but the design requirement is still satisfied.(3)In the application of pile 3,as the spacing of piles increases,we can find that some abnormal phenomena occur obviously,that is,the stress near the anti-slide pile is decreased,which leads to the possibility of this phenomenon The reason is that the pile spacing increases so that the sliding body slides between the anti-slide piles,and the anti-slide piles do not effectively control the stability of the entire landslide.This program should be avoided as far as possible.(4)Therefore,considering the calculation and analysis of the three kinds of pile-pile scheme,this paper intends to strengthen the support of the cloth pile in the town of Zhongyuan town.That is,the anti-slide pile reinforcement method for the pile spacing 6m,pile cross-sectional size of 2.0 × 3.0m,pile length of 17 m. |
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