CN-121977503-A - Method, system, product and medium for measuring tunnel ultra-under-excavated volume

CN121977503ACN 121977503 ACN121977503 ACN 121977503ACN-121977503-A

Abstract

The application discloses a method, a system, a product and a medium for measuring tunnel ultra-under excavation, belonging to the technical field of power grids; the method comprises the steps of carrying out point cloud calculation according to the tunnel point cloud data, calculating coordinates of the point cloud data and the three-dimensional contour of the tunnel on an unfolding plane according to the point cloud data and the three-dimensional contour of the tunnel to obtain the super-undermining condition of the tunnel, and generating a super-undermining result report by establishing an irregular triangular network based on the super-undermining condition of the tunnel and the three-dimensional contour of the tunnel. According to the technical scheme, the point cloud data acquired by the handheld SLAM scanner is rapidly transmitted, the measuring equipment is simplified, the operation efficiency is improved, and the rapid analysis of the super-undermining square quantity is realized by constructing an irregular triangular network by combining the tunnel contour and the point cloud data, so that the rapid extraction of the tunnel section and the rapid generation of the super-undermining report are realized.

Inventors

HUANG HAIFENG
ZHOU GUANGHAI
WANG JIEKAI
ZHANG DEXIAN
YANG LIYANG

Assignees

广州南方测绘科技股份有限公司

Dates

Publication Date: 20260505
Application Date: 20251230

Claims (10)

1. The method for measuring the tunnel over-under-excavated square quantity is characterized by comprising the following steps of: receiving tunnel point cloud data obtained by laser scanning of a tunnel to be tested by an operation model; Performing point cloud calculation according to the tunnel point cloud data to obtain first point cloud data; Calculating coordinates of the first point cloud data and the three-dimensional contour of the tunnel to be tested on an unfolding plane according to the first point cloud data and the three-dimensional contour of the tunnel to be tested to obtain the super-underexcavation condition of the tunnel to be tested, wherein the three-dimensional contour of the tunnel to be tested is constructed through a preset tunnel design file to be tested; and generating a super-undermining result report by establishing an irregular triangular network based on the super-undermining condition of the tunnel to be tested and the three-dimensional profile of the tunnel to be tested.
2. The method for measuring the tunnel overexcitation according to claim 1, wherein the calculating coordinates of the first point cloud data and the three-dimensional contour of the tunnel to be measured on the expansion plane according to the first point cloud data and the three-dimensional contour of the tunnel to be measured, to obtain the tunnel underexcavation condition includes: projecting the data points in the first point cloud data under a coordinate system of a three-dimensional contour of the tunnel to be detected to obtain second point cloud data; Projecting the second point cloud data and the three-dimensional contour of the tunnel to be measured to an unfolding plane, and obtaining the coordinates of the second point cloud data on the unfolding plane through the tunnel mileage of each data point in the second point cloud data and the angle of the data point on the corresponding section contour; And obtaining the super-undermining condition of the tunnel to be tested according to the coordinates of the second point cloud data on the unfolding plane and the coordinates of the three-dimensional outline of the tunnel to be tested on the unfolding plane.
3. The method for measuring the tunnel overexcitation according to claim 1, wherein the generating the underexcavation result report by establishing an irregular triangle network based on the underexcavation condition of the tunnel to be measured and the three-dimensional profile of the tunnel to be measured includes: Taking the three-dimensional contour of the tunnel to be tested as a reference plane, taking the super-underexcavation condition of the tunnel to be tested as an elevation, and constructing an irregular triangular network; Based on the irregular triangular network, visual data of a plurality of tunnel sections are obtained, the tunnel super-undermining method quantity is calculated, and a super-undermining result report is generated.
4. The method for measuring the tunnel overexcitation volume according to claim 1, wherein the receiving operation model is used for obtaining tunnel point cloud data by laser scanning of a tunnel to be measured, and specifically comprises the following steps: And splitting the tunnel point cloud data obtained by the operation model into a plurality of groups of tunnel point cloud data files, and transmitting the tunnel point cloud data files in groups through a wireless network.
5. The method for measuring the tunnel overexcitation volume according to claim 1, wherein the performing the point cloud calculation according to the tunnel point cloud data to obtain first point cloud data includes: acquiring scanning center point coordinates according to a plurality of control points in the tunnel point cloud data; and carrying out point cloud calculation on the tunnel point cloud data according to the scanning center point coordinates to obtain first point cloud data.
6. The method for measuring the tunnel super-underexcavated volume according to claim 1, wherein the method for constructing the three-dimensional profile of the tunnel to be measured by obtaining the design file of the tunnel to be measured is specifically as follows: Based on tunnel centerline data and contour design files in the tunnel design files, a corresponding contour line is generated on each tunnel section according to the contour design files by taking a tunnel centerline as an axis, and a three-dimensional contour of a tunnel to be tested is constructed, wherein the tunnel centerline data comprises a centerline starting point, a centerline ending point and curve elements, and the contour design files comprise radiuses, circle center positions and coordinates of all characteristic points.
7. The method for measuring the amount of tunnel overexcitation according to claim 3, further comprising, after the generation of the underexcavation result report: Pushing the over-under-cut result report to an operation model, wherein the over-cut result report comprises visual data of a tunnel section, an over-cut point bitmap, an over-cut square quantity of the tunnel, a working point and corresponding mileage information.
8. The tunnel ultra-under excavation amount measuring system is characterized by comprising a data acquisition module, a point cloud resolving module, an ultra-under excavation analyzing module and a report generating module; The data acquisition module is used for receiving tunnel point cloud data obtained by the operation model through laser scanning of the tunnel to be tested; The point cloud calculating module is used for carrying out point cloud calculation according to the tunnel point cloud data to obtain first point cloud data; The system comprises a first point cloud data acquisition module, a super-undermining analysis module, a first point cloud data acquisition module, a first tunnel analysis module and a second point cloud data acquisition module, wherein the first point cloud data acquisition module is used for acquiring a first point cloud data of a first tunnel to be tested, the first point cloud data acquisition module is used for acquiring a first point cloud data of the first tunnel to be tested, and the first point cloud data acquisition module is used for acquiring a first point cloud data of the first tunnel to be tested; The report generation module is used for generating a super-undermining result report by establishing an irregular triangular network based on the super-undermining condition of the tunnel to be detected and the three-dimensional profile of the tunnel to be detected.
9. A computer-readable storage medium, in which a computer program or instructions is stored which, when executed by a communication device, implements the method of measuring tunnel overexcavation as claimed in any one of claims 1 to 7.
10. A computer program product comprising computer programs or instructions which, when executed by a communication device, implement a method of measuring tunnel overexcavation as claimed in any one of claims 1 to 7.

Description

Method, system, product and medium for measuring tunnel ultra-under-excavated volume Technical Field The application relates to the technical fields of computer systems, mapping equipment, engineering construction and network systems, in particular to a method for measuring tunnel ultra-under-excavation amount. Background The tunnel explosion drilling method is a traditional core technology of rock tunnel excavation, when the tunnel passes through a hard rock stratum, the explosion can quickly break the rock through explosive energy, and geological conditions are ascertained in advance by matching with drilling, so that the tunnel explosion drilling method becomes an efficient excavation scheme. When measuring the section of a tunnel in blasting construction, the measurement needs to be completed as soon as possible after ballast cleaning due to the very short construction window period, and the condition of over-and-under excavation is rapidly analyzed. If the excavation profile exceeds the design range, the backfill amount of concrete and the consumption of supporting materials are increased, the engineering cost is increased, the supporting structure is easy to be stressed unevenly, and if the excavation profile does not reach the design profile, secondary blasting or trimming is needed, the construction period is delayed, the clearance is shortened, the safety of the subsequent engineering is influenced, and even the collapse risk is caused. At present, the measuring method for the tunnel super-underexcavation condition mainly uses a section instrument, a total station instrument, a robot total station instrument and the like, but the measuring method is based on the measurement of partial points, has low measuring speed and is not fully covered. The method for measuring by using the stand type scanner needs to carry more instruments, has complex operation steps and low integrated development efficiency. Therefore, the prior art has the defect that the tunnel section cannot be measured efficiently and accurately, and the rapid analysis of the super-undermining data is performed. Disclosure of Invention The application provides a method, a system, a product and a medium for measuring the tunnel super-underexcavation capacity, which can realize the rapid issuing of a tunnel super-underexcavation report. The application provides a method for measuring the over-under-excavated square quantity of a tunnel, which comprises the following steps: receiving tunnel point cloud data obtained by laser scanning of a tunnel to be tested by an operation model; Performing point cloud calculation according to the tunnel point cloud data to obtain first point cloud data; Calculating coordinates of the first point cloud data and the three-dimensional contour of the tunnel to be tested on an unfolding plane according to the first point cloud data and the three-dimensional contour of the tunnel to be tested to obtain the super-underexcavation condition of the tunnel to be tested, wherein the three-dimensional contour of the tunnel to be tested is constructed through a preset tunnel design file to be tested; and generating a super-undermining result report by establishing an irregular triangular network based on the super-undermining condition of the tunnel to be tested and the three-dimensional profile of the tunnel to be tested. According to the method, the three-dimensional space data base for calculating the tunnel super-undermining condition is obtained by collecting and resolving the point cloud data obtained by the laser scanning. And three-dimensional contour modeling is carried out by acquiring a tunnel design file, so that a standardized and visual comparison basis is provided for calculation of the over-under-excavation square quantity of different sections of the tunnel. The point cloud data and the three-dimensional contour of the tunnel are projected to the unfolding plane, and the corresponding coordinates of the point cloud data and the three-dimensional contour of the tunnel on the unfolding plane are compared, so that the super-undermining condition of each point cloud data is calculated, and accurate data input is provided for the subsequent super-undermining quantity calculation and visualization. On the basis of the three-dimensional contour of the tunnel, an irregular triangular network is established according to the tunnel super-undermining condition, super-undermining values are calculated, visual analysis is carried out, and a super-undermining result report is finally generated, so that visual and reliable basis is provided for the control and decision of the tunnel construction quality. Compared with the prior art, the method and the device have the advantages that the point cloud data and the three-dimensional outline of the tunnel are subjected to coordinate comparison, the super-undermining square quantity is calculated through modeling, and the technical effect of quickly acquiring the super-un