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System and method for testing lateral resistance of roadbed of ladder track

A technology of lateral resistance and testing system, which is applied in the field of rail transit, can solve the problems of insufficient applicability of the lateral force method and device, and does not meet the longitudinal structure of ladder-type sleepers, etc., and achieve the effect of large reaction force value, simple installation and flexible operation

Active Publication Date: 2015-01-28
BEIJING JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is that the method and device for testing the lateral resistance of ordinary strip-shaped sleeper track beds have insufficient applicability and the method and device for applying lateral force do not satisfy the longitudinal structure of ladder-type sleepers.

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  • System and method for testing lateral resistance of roadbed of ladder track

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Embodiment Construction

[0028] combine figure 1 The present invention is described further:

[0029] A ladder-type ballasted track bed lateral resistance testing system, one end of a sleeper 1 to be tested, and a square log 4 and a steel block 3 are arranged opposite to each other on both sides. The steel block 3 can be a rectangular steel block, or a cut section of scrap steel rail. The square wood 4 is placed close to the outside of the end of the sleeper 2 adjacent to the sleeper 1 to be tested, and the steel block 3 is placed close to the outside of the square wood 4 . The steel block 3 is longer than the square wood 4, and the part extending from the square wood 4 extends to the outside of the sleeper 1 to be tested, forming a suspended space with the end of the sleeper 1 to be tested. Between the steel blocks 3 on both sides of the same end, a steel wire rope 6 is sheathed, and its effect is to tightly fix the steel blocks 3 on both sides, the square wood 4 and the sleeper 2 together. As an ...

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Abstract

The invention relates to a system and a method for testing the lateral resistance of the roadbed of a ladder track, and belongs to the field of rail transport. The system and the method are applicable to the measurement of the lateral resistance or stiffness of the roadbed of a ladder ballast track. Square wood pieces and steel blocks are symmetrically arranged outside both sides of the two ends of a to-be-tested track sleeper. A steel wire rope is arranged in a sleeved way between the steel blocks at the two sides of the same end, and the steel wire ropes tightly fix the steel blocks and the square wood pieces at both sides to the track sleeper. The to-be-tested track sleeper is moved by a jack. The system is formed by combining the steel track, the square wood pieces and other equipment, and data is acquired and recorded by electronic apparatuses like a displacement meter and a pressure sensor. According to the system for testing the lateral resistance of the roadbed of a ladder track, counter force can be provided through adjacent ladder track sleepers, the counter force structure is stable, and the counter force is large. The device is simple in installation and flexible in operation.

Description

technical field [0001] The invention relates to a system and method for measuring the resistance of a ladder-type ballasted track transverse track bed, belonging to the field of rail transportation. It is suitable for the determination of lateral resistance or stiffness of ladder-type track bed. Background technique [0002] Ladder-type ballasted track is an important track structure, which is suitable for high-speed railways, heavy-duty railways and urban rail transit. However, due to the characteristics of longitudinal sleeper structure, the ladder-type ballasted track has the following shortcomings in the measurement of lateral track bed resistance: [0003] 1. The lateral resistance of the ladder-type ballasted track bed is large. The lateral resistance of the ladder-type ballast track is a track bent frame structure, and the lateral resistance of the ballast bed is more than ten times that of the ordinary bar sleeper. Therefore, the conventional ordinary sleeper latera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00
Inventor 郭云龙
Owner BEIJING JIAOTONG UNIV
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