A simulation loading system and loading method for the actual load characteristics of the segment on the soil layer

Abstract

The invention discloses a simulation loading system and loading method of the actual load characteristics of the soil layer on the segment, which is characterized in that it includes a segment fixing device, a detection module, a comparison module with a soil spring characteristic curve preset, a control module and a loading module , the segment fixing device is used to fix the test segment, the loading module is used to apply load to multiple force points on the test segment under the control of the control module, and the detection module is used to detect each force point after the load is applied and send it to the comparison module. The comparison module is used to obtain the target force data corresponding to the actual deformation data of each stress point and send it to the control module. The control module is used to control the loading module The corresponding force point applies the same load force as the target force data; the advantage is that it can truly simulate the loading environment with the required specific soil spring loading characteristics, so as to improve the performance of the test segment during the installation process of the test segment Perform simulation testing.

Description

technical field [0001] The invention relates to a load simulation loading system and a loading method, in particular to a simulation loading system and a loading method of the actual load characteristics of a soil layer to a segment. Background technique [0002] In the tunnel construction process, in order to ensure the safety of the segment during construction, it is necessary to test the deformation characteristics and load characteristics of the segment in advance. At present, the method of constant load is generally used to apply pressure to the test segment to test The overall average state of the segment when it is subjected to a constant load. However, the deformation at one position of the test segment will affect the surrounding parts, and the soil spring load characteristics at different positions in the actual construction environment will change with the construction progress. As time changes, the pressure on the test segment also changes accordingly. Therefore,...

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Problems solved by technology

[0002] In the tunnel construction process, in order to ensure the safety of the segment during construction, it is necessary to test the deformation characteristics and load characteristics of the segment in advance. At present, the method of constant load is generally used to apply pressure to the test segment to test The overall average state of the segment when it is subjected to a constant load. However, the deformation at one position of the test segment will affect the surrounding parts, and the soil spring load characteristics at different positions in the actual construction environment will change with the construction progress. As time changes, the pressure on the test segment also changes accordingly. Therefore, the test segment detected by the constant load method is easy to be damaged in a local position during actual construction. Among them, the soil spring characteristic curve is the The curve of the contrast relationship between the actual force data of each action point on the chip and the corresponding actual deformation data can generally be obtained by prior measurement

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