Method for testing permeability characteristic of full-tailings cemented filling slurry

A technology of permeability characteristics and cemented filling, which is used in permeability/surface area analysis, measurement device, suspension and porous material analysis, etc. Effect

Inactive Publication Date: 2013-06-12
HEBEI IRON & STEEL GRP MINING +2
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Problems solved by technology

The test of the background technology mainly adopts the soil infiltration method. Since the physical properties of the full tailings cemented filling slurry and the soil are different, the numerical error of t

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  • Method for testing permeability characteristic of full-tailings cemented filling slurry
  • Method for testing permeability characteristic of full-tailings cemented filling slurry

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Example Embodiment

[0013] The present invention will be further illustrated by the following examples.

[0014] In the embodiment, the test personnel follow a certain interval time ( , , ,... ) Use a graduated cylinder to measure the amount of permeated water ( , , ,... ), combined with permeate water volume ( , , ,... ) And the length and width of the square section of the cuboid groove ( A , B ), calculate the settlement height of seepage water ( , , ,... ); will get with Perform numerical fitting to obtain versus Relation function, further function derivation calculation, can obtain filler slurry permeability characteristics.

[0015] There are multiple embodiments of the present invention. The ratio of lime to sand between cement and whole tailings is 1:4, 1:5, 1:8, 1:10, 1:15, and the concentration after adding water is 65% and 68%. , 72%, 75%.

[0016] obtain versus The specific process of the relation function:

[0017] (1) S=A×B

[0018] In the above formula:

[0019] S Is ...

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PUM

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Abstract

The invention relates to a method for testing the permeability characteristic of a full-tailings cemented filling slurry, and belongs to the technical field of mine full-tailings cemented filling. The technical scheme of the method is characterized in that the method comprises the following steps: adding water to cement and full tailings until the concentration is 60-75%, and uniformly stirring to form the filling slurry; dumping the filling slurry into a cuboid tank, and measuring the length and the width of the squared section of the cuboid tank; carrying out permeation motion of free water in the filling slurry under a gap water pressure condition, measuring the permeation water amount in each period of time according to the interval time Ti, and calculating to obtain the settlement height Hi of penetration water; and carrying out value fitting of the obtained Hi and Ti to obtain a relation function of the Hi and Ti, and calculating through function derivation to obtain the permeability characteristic of the filling slurry. The test method has the advantages of simplicity, easy operation, suitableness for the dead zone filling slurry water-filtration scheme design and the researches on the permeability characteristic of the full-tailings cemented filling slurry, and accurate obtaining of the permeability characteristics of the full-tailings cemented filling slurry in different periods of time under conditions comprising different cement-sand ratio and different concentrations.

Description

technical field [0001] The invention relates to a method for testing the permeability characteristics of full tailings cemented filling slurry, which can quickly grasp the permeability characteristics of the full tailings cemented filling slurry, and belongs to the technical field of mine full tailings cemented filling. Background technique [0002] The permeability characteristics of the full tailings cementitious slurry is one of the important physical properties of the filling slurry. It is used to measure the ability of the filling slurry to penetrate water in the empty area of ​​the mine, and it is convenient for engineers and technicians to formulate scientifically and rationally in the filling design of the mine. Empty area filling slurry water filtration scheme. The test of the background technology mainly adopts the soil infiltration method. Since the physical properties of the full tailings cemented filling slurry and the soil are different, the numerical error of ...

Claims

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Application Information

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IPC IPC(8): G01N15/08
Inventor 南世卿胡亚军杨楠王得志王艳玲
Owner HEBEI IRON & STEEL GRP MINING
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