A Deformation Measurement Method Using Conical Wire
A measurement method, conical technology, applied in the direction of mechanical solid deformation measurement, measurement device, optical device, etc., can solve the problem that the theory and method of measurement are not perfect, the measurement of large deformation is impossible, and the measurement accuracy cannot be guaranteed, etc. problems, to achieve the effect of convenient manual or data extraction, wide range of measurement accuracy, and wide application range
Active Publication Date: 2017-02-15
HUBEI UNIV OF TECH
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Problems solved by technology
[0002] Large deformation and full-section measurement is a scientific problem that has not been well solved so far, and its measurement theory and methods are not perfect; in addition, in the case of large deformation measurement, the cost of use is high, the measurement accuracy cannot be guaranteed, and even large Deformation measurement impossible
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[0021] The present invention will be further described below in conjunction with the accompanying drawings. Such as Figure 1-3 As shown, a method of deformation measurement using conical wires includes the following steps:
[0022] 1. First fix the two ends of the measuring line, both ends can be fixed on the non-deformable foundation or on the measuring body, install the measuring components on the measuring line, fix the rotatable telescopic rod on the measuring point required by the measuring body, and extract the initial The value Δr of the deformation display 1 , and calculate the result ΔL converted into a large displacement 1 (ΔL 1 =Δr 1 / tanφ).
[0023] 2. After a period of deformation, extract the value Δr of the deformed display 2 , and calculate ΔL 2 , then the deformation result (absolute value or relative value) of this point within this period of time is ΔL 2 -ΔL 1 .
[0024] The basic principle of the present invention is: because the conical line dia...
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The invention discloses a method for measuring deformation through a conical line. The conical line is adopted as a measurement line. The two ends of the measurement line are fixed, measurement devices are arranged on the measurement line, a rotatable telescopic rod is fixed to a measurement point required by a measurement body, and the value of an initial deformation displayer is extracted, and is converted into the result of large displacement through calculation; after deformation of a period of time, the value of deformation displayer is extracted, and the deformation result of the point within this period of time can be obtained. The method has the advantages that the measurement result of the large displacement is obtained by measuring small deformation, and the problems of indoor and field large displacement and full-section measurement are solved; the measurement line is low in cost and easy to obtain; the measurement devices are cheap and simple, manpower or data extraction is facilitated, the change range of measurement precision is wide, and high adaptability is achieved; the application range is wide, and the method can be used for indoor testing and field measurement; full-section measurement can be implemented along different sections of the measurement line, and three-dimensional measurement can be implemented.
Description
technical field [0001] The invention belongs to the technical field of civil engineering and experimental measurement, and particularly relates to large deformation measurement, in particular to a deformation measurement method using a conical line. Background technique [0002] Large deformation and full-section measurement is a scientific problem that has not been well solved so far, and its measurement theory and methods are not perfect; in addition, in the case of large deformation measurement, the cost of use is high, the measurement accuracy cannot be guaranteed, and even large Deformation measurement is not possible. Contents of the invention [0003] The purpose of the present invention is to provide a method for measuring deformation utilizing conical wires for the defects in the prior art. This method can be applied to indoor tests, various construction buildings and natural deformations on the spot, and has a wide range of applications; With this method, absolu...
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IPC IPC(8): G01B5/30G01B11/16G01B21/32
Inventor 卢应发
Owner HUBEI UNIV OF TECH