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Ladder type track bed lateral resistance test system and test method

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

Active Publication Date: 2018-08-31
BEIJING JIAOTONG UNIV
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  • Abstract
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  • Claims
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to invent a ladder-type sleeper suitable for ladder-type sleepers in view of the lack of applicability of the test method and device for the lateral resistance of the conventional strip-shaped sleeper track bed and the lack of applicability of the method and device for applying lateral force and the inability to meet the longitudinal structural characteristics of ladder-type sleepers. System and method for determining lateral resistance or stiffness of ballasted track bed

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  • Ladder type track bed lateral resistance test system and test method

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Embodiment Construction

[0027] combine figure 1 The present invention is described further:

[0028] 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 lateral resistance test system and a test method of a ladder-type track bed, belonging to the field of rail traffic and suitable for measuring the lateral resistance or stiffness of a ladder-type ballast track bed. Outside the two sides of the two ends of the sleeper to be tested, square wood and steel blocks are arranged symmetrically; between the steel blocks on both sides of the same end, there are wire ropes that are looped to fix the steel blocks, square wood and sleepers on both sides. At the same time, the sleeper to be tested is moved by the jack. The present invention collects and records data with electronic devices such as displacement gauges, pressure sensors, etc. by combining equipments such as steel rails and square wood. The lateral resistance test system of the ladder-type track bed can provide a reaction force through the adjacent ladder-type sleepers, and the reaction force has a stable structure and a large reaction force value. The device is simple to install and flexible to operate.

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...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L5/00
Inventor 井国庆郭云龙贾文利强伟乐卢炜
Owner BEIJING JIAOTONG UNIV
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