High-precision settlement displacement monitoring system and monitoring method thereof

Abstract

The invention relates to the technical field of surveying and mapping, and provides a high-precision settlement displacement monitoring system, which is characterized by comprising an observation point arranged in front of a monitored object, an angle orientation point arranged on one side of the observation point, an angle reference point arranged on the other side of the observation point, an integrated monitoring point arranged on the monitored object, and a settlement reference point, the integrated monitoring point comprises a supporting rod with the bottom fixed to a monitored object and a reflector plate arranged in the middle of the supporting rod. And the total station is arranged on the observation point and monitors the settlement of the monitored object by observing the top of the integrated monitoring point, and monitors the displacement of the monitored object by observing the reflector plate on the integrated monitoring point. According to the invention, a fixed permanent displacement settlement integrated monitoring mark is adopted; and a quicker and simpler recording and calculating method is adopted. The whole monitoring process of field work point distribution, data acquisition and calculation methods is optimized. All aspects of operation safety, data quality reliability, enterprise production cost, indoor and outdoor production efficiency, data timeliness and the like are greatly improved.

Description

Technical Field

[0001] The present invention belongs to the field of surveying and mapping technology, and particularly relates to a high-precision settlement displacement monitoring system and a monitoring method thereof. Background Art

[0002] Deformation observation can master the deformation condition of a building during construction and use, timely detect abnormal changes, make judgments on the stability and safety of the building, so as to timely adopt necessary remedial measures to avoid accidents and ensure the construction quality of the building and the safe operation of the building. Through deformation observation, monitoring results and analysis data can be accumulated to scientifically explain the deformation mechanism, verify deformation prediction, and serve the research on disaster prediction theories and methods. At present, the main methods for deformation monitoring of foundation pits, retaining walls, buildings, slopes, and dams are traverse surveying, sight alignment method, intersection method, polar coordinate method, and small angle method. Due to the influence of on-site cross-construction, most of these methods use the intersection method or polar coordinate method. These methods have a large workload, large accidental errors and cumulative errors, large calculation amounts, and high requirements for the site. It requires a large amount of manpower, material resources and time. Summary of the Invention

[0003] In view of the above-mentioned defects or deficiencies in the prior art, the present invention provides a high-precision settlement displacement monitoring system and a monitoring method thereof to solve the problems existing in the above-mentioned prior art.

[0004] Its main technical solution is: a high-precision settlement displacement monitoring system, including an observation point arranged in front of the object to be monitored, an angle orientation point arranged on one side of the observation point, an angle reference point arranged on the other side of the observation point, an integrated monitoring point arranged on the object to be monitored, and a settlement reference point; the integrated monitoring point includes a support rod fixed at the bottom on the object to be monitored and a reflector arranged in the middle of the support rod; a total station is arranged at the observation point to monitor the settlement of the object to be monitored by observing the top of the integrated monitoring point, and monitor the displacement of the object to be monitored by observing the reflector on the integrated monitoring point.

[0005] Preferably, the settlement reference point is arranged in an area outside the image range of the settlement area.

[0006] A monitoring method of a high-precision settlement displacement monitoring system, characterized by comprising the following steps:

[0007] (1) Implant an integrated monitoring point on the object to be monitored;

[0008] (2) At the observation point, use a total station to observe the top of each integrated monitoring point and record the settlement data;

[0009] (3) At the observation point, use a total station to observe the reflector of each integrated monitoring point to calculate the angle difference of each integrated monitoring point and the ranging data of the total station to the integrated monitoring point in the initial state;

[0010] (4) Use the angular differences and distances of each integrated monitoring point obtained in step (3), and calculate the horizontal displacement of each integrated monitoring point through the measurement principle of the small-angle method.

[0011] (5) Analyze the deformation of the object under monitoring based on the settlement data and horizontal displacement data of each integrated monitoring point.

[0012] The beneficial effects of the present invention are as follows: For projects such as foundation pit monitoring, retaining wall monitoring, pipeline monitoring, dam monitoring, and building monitoring, the small-angle method displacement monitoring with permanently implanted settlement and displacement integrated observation marks realizes single-person displacement monitoring operation instead of the original multi-person cooperation for observation, greatly reducing the consumption of manpower and time. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Other features, objects, and advantages of the present application will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings:

[0014] Figure 1 is a schematic structural diagram of an embodiment of the present invention;

[0015] Figure 2 is a schematic structural diagram of the integrated monitoring point of the present invention;

[0016] Figure 3 is a calculation principle diagram of the monitoring method of the present invention;

[0017] 1. Support rod; 2. Reflective sheet; 3. Object under monitoring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present application will be further described in detail below with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the related invention and do not limit the invention. Additionally, it should be noted that only the parts related to the invention are shown in the drawings for the convenience of description.

[0019] A high-precision settlement and displacement monitoring system includes an observation point arranged in front of the object under monitoring, an angular orientation point arranged on one side of the observation point, an angular reference point arranged on the other side of the observation point (to determine the 0-degree direction of the angle for each observation), an integrated monitoring point arranged on the object under monitoring, and a settlement reference point (arranged outside the image range of the settlement area, generally arranged more than 200 m outside the foundation pit for a foundation pit); the integrated monitoring point includes a support rod fixed at the bottom on the object under monitoring and a reflective sheet arranged in the middle of the support rod; a total station is arranged at the observation point to monitor the settlement of the object under monitoring by observing the top of the integrated monitoring point, and to monitor the displacement of the object under monitoring by observing the reflective sheet on the integrated monitoring point.

[0020] A monitoring method for a high-precision settlement displacement monitoring system, characterized by comprising the following steps:

[0021] (1) Implant an integrated monitoring point on the object to be monitored;

[0022] (2) At the observation point, use a total station to observe the top of each integrated monitoring point and record the settlement data;

[0023] (3) At the observation point, use a total station to observe the reflector of each integrated monitoring point to calculate the angular difference of each integrated monitoring point and the ranging data of the total station to the integrated monitoring point in the initial state;

[0024] (4) Use the angular difference and distance of each integrated monitoring point obtained in step (3) to calculate the horizontal displacement of each integrated monitoring point through the small-angle method measurement principle;

[0025] (5) Analyze the deformation of the object to be monitored based on the settlement data and horizontal displacement data of each integrated monitoring point.

[0026] Embodiment

[0027] As Figure 2-3 shown, integrated monitoring points are vertically arranged at intervals of 10 meters on the top of the retaining wall, and integrated monitoring points are horizontally arranged at intervals of 10 meters in the middle and lower parts of its inclined surface. At the observation point, use a total station to observe the top of the integrated monitoring point, and compare with the settlement reference point to record the settlement data of each integrated monitoring point; the observation point is A, the angle reference point is B, the angle orientation point is point E, and the integrated monitoring point is C. When observing the initial position of the integrated monitoring point at the observation point, the angle β of ∠ABC 1 and the distance D of BC. After a period of time, use a total station to observe the angle β of ∠ABC' of the integrated monitoring point at this time 2 , according to the calculation formula of the small-angle method where ρ = 206265″ ， calculate the horizontal displacement data of each integrated monitoring point; analyze the overall deformation of the retaining wall through the settlement displacement data and horizontal displacement data of each integrated monitoring point.

[0028] In the present invention, integrated monitoring points are implanted on monitoring objects such as retaining walls, foundation pits, buildings, dams, etc. The length and size of the monitoring points can be appropriately designed and processed according to the on-site environment and operation requirements; then, the total station reflector sticker of the supporting instrument is pasted on the reflector of the monitoring point. According to the requirements of the monitoring plan, the monitoring points are arranged. The top and bottom of the foundation pit can be arranged. Angle measurement is carried out through a total station to calculate the displacement amount. The main components are the observation point, the angle orientation point, the angle reference point, the settlement reference point, and each monitoring point.

[0029] The above description is only a preferred embodiment of the present application and an explanation of the applied technical principles. Those skilled in the art should understand that the scope of the invention involved in the present application is not limited to the technical solutions formed by the specific combination of the above technical features, but should also cover other technical solutions formed by any combination of the above technical features or their equivalent features without departing from the inventive concept. For example, the technical solutions formed by mutually replacing the above features with the technical features (but not limited to) disclosed in the present application that have similar functions.

Claims

1. A high-precision settlement displacement monitoring system, characterized in that: It includes an observation point in front of the monitored object, an angle orientation point on one side of the observation point, an angle reference point on the other side of the observation point, an integrated monitoring point on the monitored object, and a settlement reference point; the integrated monitoring point includes a support rod with a bottom fixed on the monitored object and a reflector provided in the middle of the support rod; The total station is arranged at the observation point to monitor the settlement of the monitored object by observing the top of the integrated monitoring point, and to monitor the displacement of the monitored object by observing the reflective sheet on the integrated monitoring point.

2. A high-precision settlement displacement monitoring system according to claim 1, characterized in that: The settlement reference points are arranged in an area outside the image range of the settlement area.

3. The monitoring method of a high-precision settlement displacement monitoring system according to claim 1, characterized in that: The following steps are involved: (1) Implant an integrated monitoring point on the monitored object; (2) Observe the top of each integrated monitoring point at the observation point using a total station and record the settlement data; (3) Observe the reflector of each integrated monitoring point at the observation point through the total station to calculate the angle difference of each integrated monitoring point and the distance measurement data of the total station to the integrated monitoring point in the initial state; (4) using the angle difference and distance of each integrated monitoring point obtained in step (3), the horizontal displacement of each integrated monitoring point is calculated by the small angle method measurement principle; (5) Analyze the deformation of the monitored object based on the settlement data and horizontal displacement data of each integrated monitoring point.

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