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Preparation material of remolded coal series mudstone sample and batch preparation method thereof

A mudstone and coal-measure technology, which is applied in the field of preparation materials for reshaping coal-measure mudstone samples and its batch preparation, can solve the problems that mudstone samples cannot be highly restored, and experimental rock samples cannot be prepared in batches, etc., and achieve simple and easy materials. The effect

Active Publication Date: 2020-12-08
CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD +1
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Problems solved by technology

[0006] In view of this, in order to solve the above-mentioned mudstone rock sample remodeling process, the present invention cannot prepare experimental rock samples in batches and the mudstone rock samples after batch remodeling cannot be highly To restore the mechanical properties of on-site carbonaceous mudstone, provide a preparation material for reshaping coal-measure mudstone samples and its batch preparation method

Method used

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  • Preparation material of remolded coal series mudstone sample and batch preparation method thereof
  • Preparation material of remolded coal series mudstone sample and batch preparation method thereof

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Embodiment Construction

[0032] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0033] Such as figure 1 A method for batch preparation of remodeled samples for reducing the mechanical properties of coal-measure mudstone is shown, comprising the following steps:

[0034] S1: According to the coal-measure carbonaceous mudstone object that needs to be studied, a group of rock samples are collected at the coal mine site and ground to powder. Measuring method of mechanical properties (GB / T23561.1-2009) "requires to m...

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Abstract

The invention belongs to the field of rock mechanics experiments, and relates to a preparation material of a remolded coal series mudstone sample. The material comprises the following components, by mass: 5-15% of pulverized coal, 10-20% of bentonite, 5-10% of clay, 30%-40% of quartz sand, 5%-15% of the cement, and the balance being water. In a laboratory, the characteristics of calcium bentoniteor sodium bentonite are utilized to simulate the water absorption characteristic and expansion deformation characteristic of mudstone, the characteristics of quartz sand and cement are utilized to simulate the sandy components and strength of mudstone, and a certain amount of on-site coal sample, clay and purified water are added. A remodeling experiment rock sample is obtained by using a specialplastic drying grinding tool according to different proportions to carry out a rock mechanics experiment, and a proportion closest to the mechanical property of an on-site rock sample is selected to prepare carbonaceous mudstone samples in batches to carry out mechanical evaluation.

Description

technical field [0001] The invention belongs to the field of rock mechanics experiments, and relates to a preparation material for remodeling coal-measure mudstone samples and a batch preparation method thereof, in particular to a preparation material for remodeling coal-measure mudstone samples that restores the mechanical properties of coal-measure mudstone and its batch preparation method. Background technique [0002] Coal-measure carbonaceous mudstone is a kind of sedimentary rock series associated with coal seams, and its lithology varies greatly. When taking rock samples on site for research, it is inevitable that the obtained rock samples have different mechanical properties, and it is difficult to obtain relatively uniform mechanical parameter comparison data through laboratory experiments. [0003] The invention patent with the publication number CN110482988A discloses a weakly expansive mudstone-like material and its preparation method, including the following co...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/24G01N3/08G01N15/08G01N1/44G01N1/36G01N1/28C04B28/00
CPCG01N33/24G01N1/28G01N3/08G01N15/08G01N1/286G01N1/36G01N1/44C04B28/00C04B2111/00991G01N2015/0866G01N2203/0019G01N2203/0252G01N2203/0298G01N2001/366G01N2001/2866C04B14/104C04B14/10C04B14/06C04B14/02Y02W30/91
Inventor 孙中光罗剑孙维贺奎赵庆川钟宇戴书球张建鑫薛宗杰韩麟之梁帅周琪森
Owner CHINA COAL TECH & ENG GRP CHONGQING RES INST CO LTD
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