Device for measuring dumping volume of shield construction on line based on profile scanning

A technology of measuring device and section, applied in the direction of measuring device, using optical devices, instruments, etc., can solve the problems of poor subway shield construction environment and easily damaged camera lenses, and achieve the effect of realizing scanning synchronization and improving accuracy.

CN102706279AInactive Publication Date: 2012-10-03上海地铁盾构设备工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2012-10-03
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a device for measuring the dumping volume of a shield construction on line based on profile scanning, and relates to the field of measurement of shield constructions. An n-shaped vertical bracket is arranged on the two sides of a belt conveyor and is perpendicular to the conveying direction of the belt conveyor; three two-dimensional laser scanners are arranged on the bracket; mounting centers of the three two-dimensional laser scanners are positioned on the same horizontal line; a friction wheel is connected with a rotary encoder through a coupler, is arranged on the lower surface of the belt conveyor and is tightly attached to the lower surface of the belt conveyor; a nylon supporting plate is arranged on the lower surface of a conveying belt on the measuring section of the belt conveyor; a main processing unit is used for processing a transverse outline acquired by scanning and calculating the current cross section area by a numerical integration method; the friction wheel is used for measuring the speed of the belt conveyor, and the speed is integrated to acquire the current soil body volume; and an upper computer is used for displaying the current soil body volume in real time. By the device, the soil output of the shield construction can be accurately measured on line in the process of conveying muck by using the belt conveyor.
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Description

technical field

[0001] The invention is an engineering measuring device applied to shield tunneling construction, in particular to an on-line measuring device for excavated soil volume in shield tunneling construction based on section scanning. Background technique

[0002] In Japan, a company "Co., Ltd. Calculus Workshop" has produced a soil analyzer product, which is used to measure the volume of soil on the belt conveyor. This product uses a 2D laser scanner to scan the cross-sectional area of ​​the soil, and then integrates with the speed of the conveyor to obtain the volume. This technical solution is applied to shield construction. Due to the harsh construction environment of the subway and the unstable soil viscosity, it may be broken from time to time, and the section is very irregular. The accuracy of the measurement results cannot meet the expected results.

[0003] The scheme of using ultrasonic measurement: set more ultrasonic measuring points on the belt convey...

Examples

Embodiment Construction

[0027] The technical solution of the present invention will be further introduced below in conjunction with the accompanying drawings.

[0028] In terms of obtaining the cross-section of the muck, the present invention uses a commercially available two-dimensional laser scanner sensor, which itself is not a contribution of the present invention to the prior art. Such as Figure 5 As shown, the two-dimensional laser scanner sensor of the model ZLDS200 produced by the manufacturer ZHENSHANGYOU GROUP LTD., its working principle is: when working, the semiconductor laser generator 1 emits a laser beam, which passes through the lens 2 to form a plane light curtain 3 The reflection is formed on the surface of the measured object, and the lens 4 collects the light reflected by the object and projects it on a two-dimensional CMOS array 5, so as to obtain the contour of the measured object. The two-dimensional laser scanning sensor has the advantages of high sampling frequency and high...