CN-120101628-B - Slope displacement and settlement monitoring method, system, equipment and medium

CN120101628BCN 120101628 BCN120101628 BCN 120101628BCN-120101628-B

Abstract

The invention belongs to the field of slope monitoring, and discloses a method, a system, equipment and a medium for monitoring slope displacement and settlement, wherein the method comprises the steps of obtaining first observation data of a plurality of monitoring points and second observation data of a target slope; the method comprises the steps of determining LOS deformation of a target side slope based on second observation data of the target side slope by SAR satellites, extracting LOS deformation of each monitoring point from the LOS deformation of the target side slope, determining the deformation of each monitoring point according to each first observation data, constructing an LOS deformation correction model based on the deformation of each monitoring point and the LOS deformation of each monitoring point, correcting the LOS deformation of the target side slope based on the LOS deformation correction model to obtain the LOS deformation after the target side slope is corrected, and inputting the LOS deformation after the target side slope is corrected and the deformation of each monitoring point into a fusion model to obtain final deformation of the target side slope. The invention is beneficial to observing the deformation change of the side slope in real time.

Inventors

Chang Yinlian
AN JIANG
YANG WENPING
YANG SHIYU
WEN XIAOGANG

Assignees

中铁十九局集团有限公司

Dates

Publication Date: 20260512
Application Date: 20250224

Claims (7)

1. A method for monitoring displacement and settlement of a side slope, the method comprising: Acquiring first observation data of a plurality of monitoring points deployed on a target slope at the same sampling moment and second observation data of SAR satellites on the target slope, wherein each monitoring point is deployed with a GNSS receiver; Determining LOS deformation of the target side slope based on second observation data of the SAR satellites on the target side slope, and extracting LOS deformation of each monitoring point from the LOS deformation of the target side slope; determining the deformation quantity of each monitoring point according to the first observation data of each monitoring point; constructing an LOS deformation correction model based on the deformation of each monitoring point and the LOS deformation of each monitoring point; correcting the LOS deformation of the target slope based on the LOS deformation correction model to obtain the LOS deformation of the target slope after correction; inputting the LOS deformation quantity and the deformation quantity of each monitoring point after the target slope is corrected into a fusion model to obtain the final deformation of the target slope; based on the deformation amount of each monitoring point and the LOS deformation amount of each monitoring point, an LOS deformation correction model is constructed, comprising: acquiring the sight of SAR satellites of each monitoring point; Projecting the deformation of each monitoring point onto the corresponding line of sight of the SAR satellite to obtain the projection line-shaped variable of each monitoring point; calculating LOS deformation difference values of the monitoring points according to projection television linear variables of the monitoring points and LOS deformation variables of the monitoring points; Acquiring position coordinates of each monitoring point; constructing an LOS deformation correction model based on the position coordinates of each monitoring point and the LOS deformation difference value of each monitoring point; Based on the position coordinates of each monitoring point and the LOS deformation difference value of each monitoring point, an LOS deformation correction model is constructed, and the method comprises the following steps: The method comprises the steps of taking position coordinates of each monitoring point as independent variables, taking LOS deformation difference values of each monitoring point as dependent variables, carrying out polynomial fitting by adopting a preset fitting algorithm to obtain a position coordinate-LOS deformation difference equation, and taking the position coordinate-LOS deformation difference equation as an LOS deformation correction model; Correcting the LOS deformation of the target slope based on the LOS deformation correction model to obtain the corrected LOS deformation of the target slope, comprising the following steps: acquiring a coordinate position range of a target slope and resolution of SAR satellites; determining a plurality of coordinate points in the coordinate position range based on the resolution of the SAR satellites; substituting each coordinate point into the LOS deformation correction model to obtain LOS correction quantity of each coordinate point; and correcting the LOS deformation corresponding to each coordinate point based on the LOS correction quantity of each coordinate point to obtain the LOS deformation after the target slope correction.
2. The slope displacement and settlement monitoring method as set forth in claim 1, wherein at least one sub-monitoring point is disposed around each monitoring point, each sub-monitoring point having an inertial monitor thereon for collecting inertial deformation amounts at the sub-monitoring points.
3. The method of monitoring slope displacement and settlement according to claim 2, further comprising: for any monitoring point, acquiring the deformation of the monitoring point at the last sampling moment; Calculating the deformation variation of the monitoring point according to the deformation of the monitoring point at the last sampling moment and the deformation of the monitoring point at the current sampling moment; Judging whether the deformation variation of the monitoring point exceeds a preset variation; If yes, extracting inertial monitors on sub monitoring points adjacent to the monitoring point to obtain at least one adjacent inertial monitor; Acquiring inertial deformation quantity acquired by at least one adjacent inertial monitor; Correcting the deformation of the monitoring point at the current sampling moment based on the inertial deformation acquired by at least one adjacent inertial monitor to obtain the corrected deformation of the monitoring point at the current sampling moment, and participating in the construction of an LOS deformation correction model by the corrected deformation of the monitoring point at the current sampling moment.
4. The slope displacement and settlement monitoring method according to claim 3, wherein correcting the deformation amount of the monitoring point at the current sampling time based on the inertial deformation amount acquired by at least one adjacent inertial monitor to obtain the corrected deformation amount of the monitoring point at the current sampling time comprises: Calculating the adjacent average inertial deformation quantity of the monitoring point according to the quantity of at least one adjacent inertial monitor and the inertial deformation quantity acquired by the at least one adjacent inertial monitor; At the current sampling moment, determining a first calculation weight of the deformation quantity of the monitoring point and a second calculation weight of the adjacent average inertial deformation quantity according to the deformation quantity of the monitoring point; and carrying out weighted summation according to the deformation of the monitoring point, the first calculation weight and the adjacent average inertia deformation and the second calculation weight to obtain the deformation of the monitoring point at the corrected current sampling moment.
5. A side slope displacement and settlement monitoring system for implementing the side slope displacement and settlement monitoring method according to any one of claims 1 to 4, characterized in that the system comprises: The data acquisition module is used for acquiring first observation data of a plurality of monitoring points deployed on the target slope at the same sampling moment and second observation data of the SAR satellites on the target slope; The first calculation module is used for determining LOS deformation of the target side slope based on second observation data of the target side slope by the SAR satellites, extracting LOS deformation of each monitoring point from the LOS deformation of the target side slope, and disposing a GNSS receiver on each monitoring point; The second calculation module is used for determining the deformation quantity of each monitoring point according to the first observation data of each monitoring point; the model construction module is used for constructing an LOS deformation correction model based on the deformation of each monitoring point and the LOS deformation of each monitoring point; The deformation correction module is used for correcting the LOS deformation of the target slope based on the LOS deformation correction model to obtain the LOS deformation of the target slope after the correction; and the deformation fusion module is used for inputting the LOS deformation after the target slope is corrected and the deformation of each monitoring point into the fusion model to obtain the final deformation of the target slope.
6. An electronic device comprising a memory, a processor and a computer program stored in the memory and executable on the processor, characterized in that the processor implements the slope displacement and settlement monitoring method according to any one of claims 1-4 when the computer program is executed.
7. A computer readable storage medium having stored thereon a computer program, which when executed by a processor implements the slope displacement and settlement monitoring method according to any one of claims 1-4.

Description

Slope displacement and settlement monitoring method, system, equipment and medium Technical Field The invention belongs to the field of slope monitoring, and particularly relates to a slope displacement and settlement monitoring method, a system, equipment and a medium. Background The side slope is a slope surface with a certain gradient formed on two sides of the roadbed, and is an important part for ensuring the stability of the roadbed. The side slope may be divided into an artificial side slope and a natural side slope, and an earth side slope and a rock side slope. Slope stability refers to the degree of stability of a slope under certain slope height and angle conditions. The unstable side slope may slide or collapse under the action of external forces such as gravity, water pressure, vibration force and the like, so that serious damage is caused. Therefore, research on slope stability is of great importance for predicting and preventing geological disasters. In slope stability assessment, monitoring of sedimentation and horizontal displacement is a vital aspect. Early slope displacement monitoring mainly adopts total station measurement, leveling measurement, displacement sensor monitoring and the like. These methods play an important role in early engineering, but have problems such as susceptibility to weather, limited measurement accuracy, high labor cost, poor data instantaneity, and the like. The time sequence InSAR technology belongs to one technology in a remote monitoring method, and the development of the time sequence InSAR technology is continuously advanced along with the increase of Synthetic aperture radar (Synthetic ApertureRadar, SAR) satellites, and the time sequence InSAR technology is widely applied to the fields of surface subsidence, landslide monitoring and the like due to the characteristics of no influence of cloud, periodic monitoring, wide coverage range and the like. Whereas the InSAR technology has at least the following problems in the actual monitoring process: 1. InSAR can only acquire one-dimensional deformation information in the line of sight (LOS) of a monitoring point, cannot acquire a complete two-dimensional or three-dimensional deformation field, and limits the accuracy and application range of a monitoring result; 2. The InSAR observation value is influenced by uncertainty factors such as SAR satellite radar parameters, phase observation values, terrain data and the like, so that systematic errors exist, and the accuracy of a monitoring result is further influenced; 3. The change in atmospheric conditions can affect the propagation of SAR satellite signals and thus the accuracy of the InSAR observations. In summary, the observation precision of the existing InSAR technology is still to be improved when the earth surface subsidence is monitored. Disclosure of Invention The invention aims to provide a side slope displacement and settlement monitoring method, a side slope displacement and settlement monitoring system, equipment and a medium, which are used for solving the problem that the observation precision of the existing InSAR technology is still to be improved when the earth surface settlement is monitored. In order to achieve the above purpose, the present invention adopts the following technical scheme: in a first aspect, the present invention provides a method for monitoring displacement and settlement of a side slope, the method comprising: Acquiring first observation data of a plurality of monitoring points deployed on a target slope at the same sampling moment and second observation data of SAR satellites on the target slope, wherein each monitoring point is deployed with a GNSS receiver; Determining LOS deformation of the target side slope based on second observation data of the SAR satellites on the target side slope, and extracting LOS deformation of each monitoring point from the LOS deformation of the target side slope; determining the deformation quantity of each monitoring point according to the first observation data of each monitoring point; constructing an LOS deformation correction model based on the deformation of each monitoring point and the LOS deformation of each monitoring point; correcting the LOS deformation of the target slope based on the LOS deformation correction model to obtain the LOS deformation of the target slope after correction; And (3) inputting the LOS deformation quantity after the target slope is corrected and the deformation quantity of each monitoring point into a fusion model to obtain the final deformation of the target slope. Preferably, at least one sub-monitoring point is disposed around each monitoring point, each sub-monitoring point having an inertial monitor thereon for collecting inertial deformation at the sub-monitoring point. Preferably, the method further comprises: for any monitoring point, acquiring the deformation of the monitoring point at the last sampling moment; Calculating the deformation variat