Soil slope surface displacement monitoring and safety early warning method

A technology for soil slope and surface displacement, which can be used in measuring devices, instruments, optical devices, etc., and can solve problems such as the lack of quantitative judgment standards.

Inactive Publication Date: 2014-03-19
CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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Problems solved by technology

The above methods have played a very good role in landslide early warning and forecasting, but there are many problems when applied to road slopes: first, the maximum value of displacement and other response values ​​is mai...

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  • Soil slope surface displacement monitoring and safety early warning method
  • Soil slope surface displacement monitoring and safety early warning method
  • Soil slope surface displacement monitoring and safety early warning method

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Embodiment Construction

[0018] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0019] This method first monitors the basic data of slope deformation and uses mathematical statistics to obtain the deformation trend monitoring index: the upper limit value S when the slope deformation is stable and the measured value is basically unchanged. d1 The lower limit value S with obvious time-aging deformation of the slope d2 , after obtaining the monitoring data of slope deformation, the state of slope displacement in this time period can be judged according to the standard deviation S of the displacement time series. If S≤S dl , the slope is in the stable deformation stage: the deformation has been stabilized, and the displacement basically does not change; if the gas S dl d2 , the slope is in the time-dependent deformation stage, and further deformation judgment and analysis are required; if S>S d2 , it shows that the slop...

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Abstract

The invention provides a soil slope surface displacement monitoring and safety early warning method and belongs to the technical field of slope monitoring. The soil slope surface displacement monitoring and safety early warning method comprises the following steps of: 1) arranging laser displacement sensors on a slope to the measured and collecting the distance information between the laser displacement sensors and the fixed monitoring points of the surface of the slope; 2) transmitting the collected data to a remote monitoring center and calculating the displacement of monitoring points of the soil slope and a displacement rate; 3) judging the deformation stage of the soil slope according to calculated results in the step 2 and judging whether the deformation of the soil slope is in a steady deformation stage, or a time-dependent deformation stage or an accelerated failure stage; 4) judging the displacement stability of the soil slope in the time-dependent deformation stage and performing early warning according to judged results. The soil slope surface displacement monitoring and safety early warning method can relatively comprehensively describes nature and the change trend of the monitoring data of slope deformation and can reflect development processes of the slope deformation relatively truly, thereby providing objective basis for finding a deformation abnormal portion of the slope and for evaluating the safety and stability of the slope.

Description

technical field [0001] The invention belongs to the technical field of slope monitoring, and relates to a displacement monitoring and safety warning method for soil slope surface. Background technique [0002] At present, in the research of remote real-time monitoring of highway slopes, how to analyze the displacement data obtained by monitoring has always been a bottleneck that limits the development of remote real-time monitoring technology for highway slopes. Deformation stability is an important aspect of slope safety and stability, and it is of great significance to understand the deformation state of slopes in different periods for evaluating the safety and stability of slopes. Safety monitoring, as a means to correctly evaluate the change process of slope safety state, has been widely used in highway slope engineering gradually. Due to the complexity of the slope problem, it is very important to conduct in-depth research on the theory and method of slope safety monit...

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Application Information

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IPC IPC(8): G01B11/02G01B11/16
Inventor 阎宗岭陶丽娜李聪黄河柴贺军
Owner CHINA MERCHANTS CHONGQING COMM RES & DESIGN INST
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