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Device and method for detection while drilling of lithological composition of roadway roof

A roadway roof and detection device technology, which is applied in surveying, tunneling, earthwork drilling and mining, etc., can solve the problem of not being able to quickly identify the lithological composition of the roof, and achieve the effects of reducing roof fall accidents, convenient use and simple operation on the construction site

Active Publication Date: 2019-03-19
CHINA UNIV OF MINING & TECH
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Problems solved by technology

[0004] Technical problem: Aiming at the deficiencies of the above-mentioned technologies, a method with simple steps is provided, which solves the technical problem that the lithological composition of the roof cannot be quickly identified during the tunneling and support of the coal mine roadway, and the lithology of the roof strata can be detected in real time during the tunneling process. Safe and efficient detection device and method for lithological composition of roadway roof while drilling

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  • Device and method for detection while drilling of lithological composition of roadway roof
  • Device and method for detection while drilling of lithological composition of roadway roof
  • Device and method for detection while drilling of lithological composition of roadway roof

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Embodiment Construction

[0021] An implementation example of the present invention will be further described below in conjunction with accompanying drawing:

[0022] Such as figure 1 As shown, the detection-while-drilling device for the lithological composition of the roadway roof of the present invention is characterized in that it includes a cuttings collection device 1, a single rock bolt rig 2 and an enhanced hand-held ore analyzer, wherein the single rock bolt rig 2 vertically arranged and drilled to the top plate 10; the cuttings collection device 1 includes a device casing, a cuttings collection funnel 3, a conduit 5, a drying device 6, a filter pipe 7, an exhaust hole 8 and a drain pipe 9, wherein The drying device 6 and the filter tube 7 are arranged vertically inside the device housing respectively. The drying device 6 is composed of two electric heating tubes with built-in 2000W nickel-chrome wires. The drying device 6 is arranged around the filter tube 7 and above the device housing. Ther...

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Abstract

The invention discloses a drilling-while-drilling detection method for the lithology composition of the roadway roof, which is suitable for the technical field of mine roadway support. The cuttings while drilling are collected by the rock bolter during the drilling process of the roof through the special cuttings collection device, and the whole process of cuttings drainage, filtration, sedimentation and drying is completed on the roadway excavation face, combined with the enhanced handheld ore analyzer , Instantly measure the lithological composition of the roadway roof within a certain range. The invention is simple in operation and convenient in testing, realizes the detection and analysis of the lithology of the roadway roof at the same time as the drilling process in the bolt support process, is especially suitable for the complex and changeable geological conditions of mine lithology, and solves the problem of quantitatively describing the lithology of the roof The major problem of composition can provide a scientific basis for the design and adjustment of roadway roof support methods and support parameters.

Description

technical field [0001] The invention relates to a method for detecting the lithology composition of the roadway roof while drilling, which is especially suitable for the complex and changeable geological conditions of the coal mine roadway roof lithology, solves the major problem of quantitatively describing the lithology composition of the roadway roof, and is applied to mine roadway support protection technology field. Background technique [0002] The occurrence conditions of my country's coal resources are affected by the depositional environment. The lithology of the roof often changes frequently in the same roadway at the same layer. Since the lithology characteristics of the roadway roof cannot be verified in time, the support design cannot follow the change of the roof lithology. However, timely changes may sometimes cause roof accidents due to insufficient support strength, or excessive support strength, waste support materials, and reduce tunneling efficiency. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B47/12E21B49/00E21D9/00
CPCE21B47/12E21B49/00E21D9/00E21B49/02
Inventor 安铁梁郑西贵程星王文凯刘灿灿
Owner CHINA UNIV OF MINING & TECH
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