CN108665136A - A kind of analysis calculation method of filling mining effect assessment - Google Patents
A kind of analysis calculation method of filling mining effect assessment Download PDFInfo
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- 238000004458 analytical method Methods 0.000 title claims abstract description 23
- 238000004364 calculation method Methods 0.000 title claims abstract description 18
- 239000003245 coal Substances 0.000 claims abstract description 16
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Abstract
The invention belongs to technical field of coal exploitation, are related to the analysis calculation method of filling mining effect assessment.Choose the evaluation index of the falling head, the falling head of earth's surface, the area of plane of roof strata descent tape of roof strata and four influence factors of the area of plane of earth's surface descent tape as filling mining effect assessment after coal seam filling mining is stablized.The present invention can accurately analyze the influence to ground after filling mining, and the foundation of science is provided for the safety of filling mining, be suitable for wide popularization and application.
Description
Technical field
The invention belongs to technical field of coal exploitation, are related to the analysis calculation method of filling mining effect assessment.
Background technology
It is 184,200,000,000 tons that coal resources in China, which verifies residual recoverable reserves, wherein " under three " press about 14,000,000,000 tons of coal, east mine
Area " under three " presses coal amount generally to exceed the 50% of recoverable reserves, can not be produced especially in the presence of a large amount of scarce coal resources resources.Filling
Exploitation is exactly the propulsion with coal working face, is sent into the fillers such as spoil, sandstone, lotion to goaf, and in obturation
The technology mined under protection.A large amount of " under three " pressure coal safely and efficiently can be produced by filling mining, improved resource and returned
Yield extends mine service-life, for promoting Coal Industry Sustainable Development to be of great significance.Filling mining mine at present
Pressure is insufficient with strata movement theoretical research, and the evaluation of filling mining effect lacks corresponding section often according only to empirically determined
The guidance of method.
Invention content
The present invention lacks the problem of scientific method instructs for current filling mining mine and proposes that a kind of novel filling is opened
Adopt the analysis calculation method of effect assessment.
In order to achieve the above object, the present invention is realized using following technical solutions：
A kind of analysis calculation method of filling mining effect assessment, steps are as follows for analysis calculating：
1）Choose falling head, the falling head of earth's surface, the roof strata descent tape of roof strata after coal seam filling mining is stablized
The area of plane and earth's surface descent tape evaluation index of four influence factors of the area of plane as filling mining effect assessment；
2）Field measurement, probing, physical prospecting or micro-seismic monitoring data after being stablized according to coal seam filling mining, determine roof strata
Falling head hTop, earth's surface falling head hGround, roof strata falling head be hTopWhen area of plane mTopWith the decline of earth's surface
Height is hGroundWhen area of plane mGround；
3）It builds under the falling head membership function α of roof strata, the falling head membership function β of earth's surface, roof strata respectively
The area of plane membership function θ of the area of plane membership function γ and earth's surface descent tape that drop band are as follows:
The falling head membership function of roof strata：
In formula：α is the falling head degree of membership of roof strata；hTopFor falling head, unit：m；H is working thickness, unit：m；
The falling head membership function of earth's surface：
In formula：β is the falling head degree of membership of earth's surface；hGroundFor the falling head of earth's surface, unit：m；H is working thickness, unit：
m；
The area of plane membership function of roof strata descent tape：
In formula：γ is the area of plane degree of membership of roof strata descent tape；mTopIt is h for falling headTopWhen the area of plane, it is single
Position：m2；M is the area of plane in goaf, unit：m2；
The area of plane membership function of earth's surface descent tape：
In formula：θ is the area of plane degree of membership that earth's surface declines；mGroundIt is h for earth's surface falling headGroundWhen the area of plane, m2；M is
The area of plane in goaf, m2；
For the effect of overall merit filling mining, calculating is overlapped to α, β, γ and θ：
,
In formula：η is the total degree of membership of filling mining effect assessment；B is the weight of α；C is the weight of β, and d is the weight of γ；E is θ's
Weight.B, c, d and e are directly chosen according to the practical geological condition of previous achievement in research and mine, carry out multiple stacking
Tentative calculation determines after comprehensive analysis；
4）After comprehensive analysis selectes each weight, the total degree of membership η of filling mining effect assessment is calculated；
5）The effect of filling mining is evaluated with the size of the total degree of membership η of filling mining effect assessment, η values are bigger, filling mining
Effect is better；
6）Establish the analysis and calculation model of filling mining effect assessment.
Data in this method are that result is quantitatively calculated by real data to be analyzed；Entire calculating process needs
Calculate first subitem as a result, then in conjunction with the corresponding different weights of each subitem result, the two, which is multiplied, calculates overall result, according to
Overall result is analyzed；I.e. the present embodiment is quantitative intuitively to be analyzed, counted by choosing key index and assigning respective weights
It calculates and evaluation, effect size of the subitem result played in entire calculating process is divided in the way of weight, led to
The quality for representing filling mining effect that the computational methods of the present embodiment can quantify is crossed, result of calculation is with a high credibility, can join
It is strong according to property, therefore the computational methods of the present invention have a wide range of applications and promotional value.
The advantages and positive effects of the present invention are compared with prior art：The analysis of filling mining effect assessment of the present invention
Computational methods have rated the effect of filling mining from underground and ground two spaces, and it is right after filling mining accurately to analyze
The influence on ground provides the foundation of science for the safety of filling mining, is suitable for wide popularization and application.
Specific implementation mode
To better understand the objects, features and advantages of the present invention, with reference to specific embodiment pair
The present invention is described further.It should be noted that in the absence of conflict, the spy in embodiments herein and embodiment
Sign can be combined with each other.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
With using implementing different from other modes described here, therefore, the present invention is not limited to the specific of specification is described below
The limitation of embodiment.
Embodiment 1, the present embodiment provides a kind of specific calculation steps of analysis calculation method of filling mining effect assessment, such as
Shown in lower：
1）After being completed and filled due to seam mining, the rock stratum of fill area, earth's surface can all have a degree of decline, therefore
For the filling effect of comprehensive assessment fill area, the decline that the present embodiment chooses roof strata after coal seam filling mining is stablized is high
Four influence factors of the area of plane of degree, the falling head of earth's surface, the area of plane of roof strata descent tape and earth's surface descent tape
Evaluation index as filling mining effect assessment；
2）Field measurement, probing, physical prospecting or micro-seismic monitoring data after being stablized according to coal seam filling mining, determine roof strata
Falling head hTop, earth's surface falling head hGround, roof strata falling head be hTopWhen area of plane mTopWith the decline of earth's surface
Height is hGroundWhen area of plane mGround；
3）It builds under the falling head membership function α of roof strata, the falling head membership function β of earth's surface, roof strata respectively
The area of plane membership function θ of the area of plane membership function γ and earth's surface descent tape that drop band are as follows:
The falling head membership function of roof strata：
In formula：α is the falling head degree of membership of roof strata；hTopFor falling head, unit：m；H is working thickness, unit：m；
The falling head membership function of earth's surface：
In formula：β is the falling head degree of membership of earth's surface；hGroundFor the falling head of earth's surface, unit：m；H is working thickness, unit：
m；
The area of plane membership function of roof strata descent tape：
In formula：γ is the area of plane degree of membership of roof strata descent tape；mTopIt is h for falling headTopWhen the area of plane, it is single
Position：m2；M is the area of plane in goaf, unit：m2；
The area of plane membership function of earth's surface descent tape：
In formula：θ is the area of plane degree of membership that earth's surface declines；mGroundIt is h for earth's surface falling headGroundWhen the area of plane, m2；M is
The area of plane in goaf, m2；
For the effect of overall merit filling mining, calculating is overlapped to α, β, γ and θ：
,
In formula：η is the total degree of membership of filling mining effect assessment；B is the weight of α；C is the weight of β, and d is the weight of γ；E is θ's
Weight.B, c, d and e are directly chosen according to the practical geological condition of previous achievement in research and mine, carry out multiple stacking
Tentative calculation determines after comprehensive analysis；
4）After comprehensive analysis selectes each weight, the total degree of membership η of filling mining effect assessment is calculated；
5）The effect of filling mining is evaluated with the size of the total degree of membership η of filling mining effect assessment, η values are bigger, filling mining
Effect is better；
6）Establish the analysis and calculation model of filling mining effect assessment.
Data in the present embodiment method are that result is quantitatively calculated by real data to be analyzed；Entirely calculated
Journey needs to calculate first itemizing as a result, then in conjunction with the corresponding different weights of each subitem result, the two multiplication calculates summary
Fruit is analyzed according to overall result；That is the present embodiment is by choosing key index and assigning respective weights, quantitative intuitive progress
Analysis is calculated and is evaluated, and effect size of the subitem result played in entire calculating process is carried out in the way of weight
It divides, the quality for representing filling mining effect that computational methods through this embodiment can quantify, result of calculation confidence level
Height, the property of can refer to is strong, therefore the computational methods of the present invention have a wide range of applications and promotional value.
The analysis calculation method of the present embodiment has rated the effect of filling mining from underground and ground two spaces, can
Influence after accurate analysis filling mining to ground, the foundation of science is provided for the safety of filling mining, is answered suitable for being widely popularized
With.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint
What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc.
It imitates embodiment and is applied to other fields, but it is every without departing from technical solution of the present invention content, according to the technical essence of the invention
To any simple modification, equivalent variations and remodeling made by above example, the protection domain of technical solution of the present invention is still fallen within.
Claims (1)
1. a kind of analysis calculation method of filling mining effect assessment, it is characterised in that：The step of analysis calculates is as follows：
1）Choose falling head, the falling head of earth's surface, the roof strata descent tape of roof strata after coal seam filling mining is stablized
The area of plane and earth's surface descent tape evaluation index of four influence factors of the area of plane as filling mining effect assessment；
2）Field measurement, probing, physical prospecting or micro-seismic monitoring data after being stablized according to coal seam filling mining, determine roof strata
Falling head hTop, earth's surface falling head hGround, roof strata falling head be hTopWhen area of plane mTopWith the decline of earth's surface
Height is hGroundWhen area of plane mGround；
3）It builds under the falling head membership function α of roof strata, the falling head membership function β of earth's surface, roof strata respectively
The area of plane membership function θ of the area of plane membership function γ and earth's surface descent tape that drop band are as follows:
The falling head membership function of roof strata：
In formula：α is the falling head degree of membership of roof strata；hTopFor falling head, unit：m；H is working thickness, unit：m；
The falling head membership function of earth's surface：
In formula：β is the falling head degree of membership of earth's surface；hGroundFor the falling head of earth's surface, unit：m；H is working thickness, unit：
m；
The area of plane membership function of roof strata descent tape：
In formula：γ is the area of plane degree of membership of roof strata descent tape；mTopIt is h for falling headTopWhen the area of plane, it is single
Position：m2；M is the area of plane in goaf, unit：m2；
The area of plane membership function of earth's surface descent tape：
In formula：θ is the area of plane degree of membership that earth's surface declines；mGroundIt is h for earth's surface falling headGroundWhen the area of plane, m2；M is to adopt
The area of plane of dead zone, m2；
For the effect of overall merit filling mining, calculating is overlapped to α, β, γ and θ：
,
In formula：η is the total degree of membership of filling mining effect assessment；B is the weight of α；C is the weight of β, and d is the weight of γ；E is θ's
Weight, b, c, d and e are directly chosen according to the practical geological condition of previous achievement in research and mine, carry out multiple stacking
Tentative calculation determines after comprehensive analysis；
4）After comprehensive analysis selectes each weight, the total degree of membership η of filling mining effect assessment is calculated；
5）The effect of filling mining is evaluated with the size of the total degree of membership η of filling mining effect assessment, η values are bigger, filling mining
Effect is better；
6）Establish the analysis and calculation model of filling mining effect assessment.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881182A (en) * | 2010-07-14 | 2010-11-10 | 中国矿业大学(北京) | Simulation and forecast evaluation method for delaying water inrush by mine fracture structure |
| CN103089305A (en) * | 2013-01-14 | 2013-05-08 | 中国矿业大学(北京) | Risk assessment method for coal and gas outburst of coal beds |
| CN103670511A (en) * | 2013-10-19 | 2014-03-26 | 煤炭工业济南设计研究院有限公司 | Roof strata fracture degree analysis and calculation method |
-
2018
- 2018-02-24 CN CN201810156810.4A patent/CN108665136A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101881182A (en) * | 2010-07-14 | 2010-11-10 | 中国矿业大学(北京) | Simulation and forecast evaluation method for delaying water inrush by mine fracture structure |
| CN103089305A (en) * | 2013-01-14 | 2013-05-08 | 中国矿业大学(北京) | Risk assessment method for coal and gas outburst of coal beds |
| CN103670511A (en) * | 2013-10-19 | 2014-03-26 | 煤炭工业济南设计研究院有限公司 | Roof strata fracture degree analysis and calculation method |
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