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System and method for limiting ballast samples

A sample and ballast technology, applied in the field of limited samples, can solve the problems of ballast sample pollution, disturbing samples, etc., and achieve the effect of reducing sample pollution, reducing interference and reducing pollution

Pending Publication Date: 2022-07-15
北伯林顿铁路公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditional methods of ballast collection, such as hand-dug pits for sample excavation, can disturb the ballast surrounding the sample and contaminate the sample

Method used

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  • System and method for limiting ballast samples
  • System and method for limiting ballast samples
  • System and method for limiting ballast samples

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Embodiment Construction

[0016] Some known sampling methods are specifically designed for soils, which have smaller sample cross-sections because of the smaller particles in these soils. These known sampling methods are designed to take advantage of the soil's natural viscosity, thereby maintaining the integrity of the sample during extraction. Another way to collect samples is to use core drills to sample rock formations. Due to the firmness of the rock, the core is extracted uniformly, thus keeping the core intact. Ballast, such as railroad ballast, has a different consistency than soil or rock. Ballast may include larger (ie, 1 to 2.5 inches) rock particles. Existing soil sampling equipment does not have sufficient capacity to extract a suitable volume of ballast sample (eg, one cubic foot of ballast). Unlike soil and rock, ballast does not have the natural cohesion to keep the sample intact during extraction.

[0017] The present invention describes systems, methods and tools for confining bal...

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Abstract

In one embodiment, a sample restriction tool includes a first end and a second end. The first end of the sample restriction tool is coupled with a drive tool. And the driving tool is connected with the heavy vehicle. The sample restriction tool may be used to insert a predetermined depth below a ballast surface and collect a ballast sample within the second end of the sample restriction tool. The sample restriction tool may also be used to press the ballast sample by mechanical compression to restrict the ballast sample within the second end of the sample restriction tool. The sample restriction tool may also be used to release the ballast sample into a sample container by mechanically decompressing the ballast sample.

Description

technical field [0001] The present invention relates generally to confinement samples, and more particularly, to systems and methods for confinement of ballast samples. Background technique [0002] In rail transportation systems, railroad tracks are often supported by rubble called ballast. Ballast degrades over time and should be replaced. To assess the state of ballast degradation, ballast samples were collected and analyzed. Traditional ballast collection methods, such as hand digging for sample excavation, can disturb the ballast around the sample and contaminate the sample. SUMMARY OF THE INVENTION [0003] According to one embodiment, the sample confinement tool includes a first end and a second end. The first end of the sample confinement tool is coupled to the drive tool. The drive tool is coupled to the heavy vehicle. The sample restraint tool is operable to insert a predetermined depth below the ballast surface and collect a ballast sample at the second end...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01B37/00G01N1/08
CPCG01N1/08E01B27/00E01B37/00E01B27/04E01B2203/028
Inventor 达雷尔·R·克鲁格迈克尔·A·瓦尼克威廉·多姆布罗
Owner 北伯林顿铁路公司