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Slope Disaster Mechanism And Online Monitoring Analysis

Posted on:2021-09-21Degree:MasterType:Thesis
Country:ChinaCandidate:F Q YanFull Text:PDF
GTID:2510306200451184Subject:Architecture and Civil Engineering
Abstract/Summary:PDF Full Text Request
During and after the treatment of slopes,due to the complex and diverse geological conditions of the slope,accidents caused by various unfavorable geology are common.Although a lot of geological surveys have been carried out before construction,due to the limitations of survey techniques,methods,and the extent of surveys,coupled with the complexity and variability of geological bodies,it is expected that the status and characteristics of rock and soil bodies will be fully identified and accurately predicted before construction.The location,nature,and scale of geological disasters that may occur during the use of the slope are very difficult.The monitoring method is to collect the stress and deformation parameters of the slope in time,effectively understand the actual status and stability of the slope,determine the safety status of the slope,and provide early warning of safety.Can improve the level of slope design and construction.Based on the current status of slope monitoring,the wireless sensor technology slope on-line monitoring system enables the overall improvement of slope safety operation and maintenance level,continuous real-time monitoring and real-time rapid assessment.Competent authorities and maintenance units push alarms,early warning information,and emergency plan suggestions in the form of mobile phone text messages,mobile phone clients,or computer terminal reminders to achieve "early awareness" of risk events and grasp the initiative of emergency rescue and maintenance.You can directly view the safety status of multiple slopes and tunnels in the area on your mobile phone or web map.The main research contents are as follows:(1)Analyze the geographical location of the study slope,engineering geology and hydrogeology,support design,sliding history,sliding causes and consequences.(2)Using FLAC3D software to establish a three-dimensional numerical simulation analysis model for sliding slopes,and to quantitatively analyze and evaluate the slope stability.The maximum settlements,maximum horizontal displacements,and total displacements at the top of the slope were obtained by analyzing the soil surface area and the prison area of the damaged slope.(3)The stability analysis of the slope is performed using the strength stabilization method to obtain the stability coefficients and failure characteristics of the three sections,and the stability coefficient calculated by the boundary balance method is compared with the potential sliding surface.(4)The boundary balance method is used to analyze the four treatment schemes of section 1 and section 2 under natural and special working conditions.After analysis,solution4 can meet the stability requirements.You can clear the profile three to meet the stability requirements.(5)Based on the wireless sensing technology,establish a monitoring and early warning system for sliding slopes,analyze the excellent hardware equipment and software applications of the monitoring and early warning system,establish a data center,and from a technical and applicative perspective,The significance of slope safety monitoring is analyzed.
Keywords/Search Tags:Slope engineering, Wireless sensor technology, Field monitoring, Numerical simulation, Disaster analysis
PDF Full Text Request
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