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Filling body strength matching system, construction method thereof and filling body strength matching method

A construction method and filling body technology, applied in the field of mining, can solve problems such as incomplete consideration of random factors, inappropriate function functions, and failure to consider the impact, etc., to achieve the best practical value, high accuracy of calculation results, and simple and convenient operation

Inactive Publication Date: 2020-12-22
YUXI MINING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Does not take into account the influence of uncertain factors
In the prior art, the strength of the filling body is also determined through the reliability theory, but the existing reliability calculation method has the disadvantages that the function function is not suitable, the random factors are not fully considered, the calculation amount is large, and the calculation efficiency is low.

Method used

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  • Filling body strength matching system, construction method thereof and filling body strength matching method
  • Filling body strength matching system, construction method thereof and filling body strength matching method
  • Filling body strength matching system, construction method thereof and filling body strength matching method

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Embodiment 1

[0054] This embodiment provides a method for constructing a filling body strength matching system, such as figure 2 shown, which includes:

[0055] S1. Select several main factors that affect the force of the cemented backfill; including the strength σ of the cemented backfill, the size of the cemented backfill (length L, width W, height H), and the internal friction angle of the cemented backfill Internal friction angle of side wall rock The internal friction angle between the cemented filling body and the surrounding rock wall Internal friction angle of non-cemented tailings filling Bulk density of cemented filling body γ, bulk density of roof loose rock γ 1 , bulk density of stope side rock γ 2 , bulk density of uncemented filling tailings γ 3 .

[0056] S2. Select a functional function containing multiple main factors, and introduce multiple main factors into the functional function as random variables; the functional function is

[0057]

[0058] S3. Each r...

Embodiment 2

[0080] This embodiment provides a filling body strength matching method, which uses the filling body strength matching system provided in Embodiment 1, such as figure 2 shown, which includes:

[0081] S1. Use cyclic calculation to screen out the strength value of the corresponding cemented filling body under the condition of reliability probability ≥ 90%;

[0082] S2. Using the strength characteristic database, find the raw material ratio of the cemented filling body under the condition that the strength value of the cemented filling body is satisfied.

[0083] Since the amount of cement in the process of mine cementation filling directly determines the filling cost, the cost analysis of the primary selection results is carried out, and the proportioning scheme with the smallest amount of cement is selected under the condition of meeting the strength requirements, so as to realize the filling strength under different structural parameters. Proportional matching process.

[...

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Abstract

The invention discloses a filling body strength matching system and a construction method thereof, relates to the technical field of mining. The method aims to comprehensively select main factors influencing the strength of a filling body, introduce the main factors into a selected performance function as random parameters, and perform operation by utilizing a subset simulation method so as to realize preliminary screening of the strength of a cemented filling body. The construction method is simple and convenient to operate, various random factors influencing the cemented filling body are fully considered, and accurate matching of the strength of the filling body is achieved. The embodiment of the invention further provides a filling body strength matching method which is carried out by adopting the filling body strength matching system, and the filling body strength matching method is high in calculation result precision, small in calculation amount, high in efficiency and good in practical value.

Description

technical field [0001] The invention relates to the field of mining technology, in particular to a filling body strength matching system and a construction method thereof, and a filling body strength matching method. Background technique [0002] With the continuous development of my country's economic level and the continuous improvement of environmental protection awareness, waste-free mining in mines has become an inevitable trend in the development of mining technology. Among them, the filling mining method has become the core and focus of mining method research due to its advantages of effectively reducing the amount of tailings stockpiled on the surface, reducing the mining dilution rate, and maintaining the stability of underground stope pressure. Among the filling and filling mining methods, the stage empty stop and then filling mining method is a relatively common mining method in the mining of low-grade mines. Its essence belongs to the method of joint mining of s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20G06Q50/02
CPCG06F30/20G06Q50/02
Inventor 李广涛陈平黄飞李在利乔登攀陈浩范天林
Owner YUXI MINING