Real-time slope stability evaluation method in combination with pore water pressure
A technology of pore water pressure and stability, applied in the direction of instruments, complex mathematical operations, design optimization/simulation, etc., can solve the problems that cannot reflect the safety state of the slope, the pore water pressure is not widely used, and the early warning threshold of pore water pressure Difficult to clarify and other problems, to achieve the effect of strong applicability and good accuracy
Active Publication Date: 2021-06-01
深圳市安泰数据监测科技有限公司
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Problems solved by technology
However, the use of pore water pressure monitoring data for slope safety early warning analysis faces the following problems: (1) It is difficult to determine the early warning threshold based on pore water pressure; (2) The spatial distribution of pore water pressure is highly random. The pore water pressure at the monitoring point may not reflect the safe state of the slope
For this reason, in engineering practice, the monitoring of pore water pressure is not widely used.
Method used
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[0031]The invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that the various features of the present invention can be combined with each other if it is not conflict, and each of the features in the embodiments may be within the scope of the invention.
[0032]Seefigure 1 The present invention provides a real-time slope stability assessment method for binding a pore water pressure, including the following steps:
[0033]S1, get the grid coordinate of monitoring point coordinates and unmodified points;
[0034]The method of obtaining the coordinates of the monitoring point and the mesh coordinates of the unmodified point can be obtained by means of the on-site surveying, map, coordinate measuring device, sensor with position detection function, and the acquisition method is not specifically defined here.
[0035]S2, the monitoring data of the pore water pressure at the measuring point is obtained according to the monitoring po...
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The invention discloses a real-time slope stability evaluation method in combination with pore water pressure. The method comprises the following steps: obtaining coordinates of monitoring points and grid coordinates of non-monitoring points; acquiring monitoring data of pore water pressure at the monitoring point according to the monitoring point coordinates; according to the monitoring data, judging a trend structure of pore water pressure in space distribution; according to the monitoring data and the trend structure, judging a self-correlation structure of pore water pressure distributed in space; according to the self-correlation structure and the trend structure, performing interpolation prediction on the non-monitoring point area to obtain a pore water pressure distribution field; inputting the pore water pressure distribution field into a slope stability analysis model; and calculating a real-time slope safety coefficient by using the slope stability analysis model, and generating a real-time early warning signal. According to the method, the uncertainty of spatial distribution of the pore water pressure is combined, the real-time slope safety coefficient is used as an early warning judgment index, the accuracy is good, and the applicability is high.
Description
Technical field[0001]The present invention relates to the field of slope monitoring techniques, and more particularly to a real-time slope stability assessment method of binding pore water pressure.Background technique[0002]Rainfall is the most common factor in induced landslide disasters. During the rainfall, rainwater into the seepage body increased the water pressure of soil, and the strength of the soil decreased, resulting in landslide disasters. This is an important reason for the occurrence of shallow landslides. In the field of slope monitoring, although existing technologies attempt to put the pore water pressure as a monitoring index. However, the monitoring data of pore water pressure Makes the slope safety warning analysis facing the following issues: (1) The warning threshold based on the pore water pressure is difficult to clear; (2) The spatial distribution of the pore water pressure has a large random Sex, the pore water pressure of the monitoring point is likely to ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): G06F17/18G06F30/20G06F119/02
CPCG06F17/18G06F30/20G06F2119/02Y02A10/23
Inventor 李娜黄磊李永生
Owner 深圳市安泰数据监测科技有限公司