CN108590656B - A kind of disaster-ridden member coupling hard-to-recovery reserve decoupling recovery method - Google Patents
A kind of disaster-ridden member coupling hard-to-recovery reserve decoupling recovery method Download PDFInfo
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C41/00—Methods of underground or surface mining; Layouts therefor
- E21C41/16—Methods of underground mining; Layouts therefor
- E21C41/18—Methods of underground mining; Layouts therefor for brown or hard coal
Abstract
The invention discloses a kind of disaster-ridden member coupling hard-to-recovery reserves to decouple recovery method, based on complicated hard-to-recovery reserve type and calamity element type, analyzes disaster-ridden first factors causing disaster and intercouples and relationship and constitute specific gravity, establishes different calamity members and cause calamity contribution degree evaluation methods and index system；Different calamity members cause calamity contribution degree in risk index and recovery activity by calculating each calamity member, can determine coupling level and sequence between leading calamity member, the sequence of other factors causing disasters, different calamity members；The whole and local decoupling sequence of disaster-ridden member coupling hard-to-recovery reserve has been determined；Then, to exploit as core, decoupling method is proposed；According to interaction relationship between decoupling level and sequence, calamity member, the target for administering mine disaster is simplified, in Main Stages such as Mine hydrogeology, construction and productions, decouple calamity member, degree of coupling is reduced, finally eliminates mine disaster, and then improve shaft production safety.
Description
Technical field
The invention belongs to mines, Geotechnical Engineering field, are related to the exploitation of various complicated mode of occurence hard-to-recovery reserves, tool
Body is a kind of disaster-ridden member coupling hard-to-recovery reserve decoupling recovery method.
Background technique
The ratio of China's coal-mine pit mining accounts for about 90% or more, is the highest country of pit mining ratio in the world, several
All geographic areas and coal-forming stratum have coal mine to be exploited, due to having a very wide distribution and forming Environment complexity, geology
Complicated condition or extremely complex coal mine account for 36%, preservation the international mining circle such as a large amount of very thin, special thickness, high inclination-angle it is generally acknowledged
Hard-to-recovery reserve, meanwhile, the coal mine exploited at present is the mine for having Gas, national coal mine year gas emission 100
More than billion cubic meter, in State owned coal mine, high methane and projecting mine account for 49.8%；There is the mine of coal dust explosion hazard to account for
87.4%；There is the mine of spontaneous fire danger to account for 51.3% in coal seam；Complicated hydrogeological conditions or extremely complex coal mine account for
27%.According to statistics, roof collapse, gas explosion (burning), coal and gas prominent, thoroughly (prominent) water accident, spontaneous combustion of coal seam ignition, punching
Press (strong mine pressure), underground thermal pollution etc. to constitute coal mine severe and great casualty ratio up to 90% or more with hitting.It will be apparent that complicated coal-forming
Environment causes exploiting along with a variety of cause calamity sources such as high-ground stress, high methane, High-geotemperature, fire, water damage, bump
Single disaster quantity gradually decreases in journey, and the compound disaster quantity that two or more disasters occur simultaneously is in rising situation, and to open
Adopting induction is core, generates coupling, had not only caused the continuous expansion of disaster degree of injury, but also result in hazard management difficulty
Constantly promoted.
Coal mining and safety (hazard management) are two aspects of a problem, and key is to exploit, without exploitation
Safety problem is just not present in activity, it may be said that safety problem caused by the disaster of all is caused by exploitation, and disaster
The purpose of improvement is to guarantee exploitation safety.In traditional hazard management methods and techniques, it is generally adopted by specific aim and administers original
Then, i.e., for certain single disaster take targetedly method or technique administered more, bring polynary disaster into one
Be that core carries out the less of comprehensive treatment in a system and with exploitation, cause hazard management methods and techniques it is increasingly sophisticated,
Diaster prevention and control difficulty is continuously improved, diaster prevention and control cost climbs up and up, and seriously constrains mine technology levels and enterprise is whole
Body economic and social benefits are promoted.
Summary of the invention
It is in the prior art existing insufficient the invention aims to solve, a kind of disaster-ridden member coupling hard-to-recovery reserve is provided
Decouple recovery method.
In order to achieve the above objectives, the present invention is implemented according to following technical scheme:
A kind of disaster-ridden member coupling hard-to-recovery reserve decoupling recovery method, comprising the following steps:
Step 1: analyzing for specific mine, according to its geologic information and history accident rate, the whole of the mine is determined
Body Disasters Type, the calamity seed type include complicated hard-to-recovery reserve type and calamity element type, are then constructed to exploit as core
Polynary disaster coupling model；
Step 2: characterizing each calamity member of the mine and its risk of disaster index with risk index H, and determine the mine
The risk index of each calamity member of well and the mapping table of Hazard rank:
,
And the initial risk index of each calamity member of the mine is calculated using index weights method, index weights method calculates public
Formula:In formula: m is calamity member sum, and calamity member is marked with i, i=1,
2 ..., m；N is the index number of disaster i, and index is marked with j, j=1,2 ..., n；wijFor the corresponding weight of j-th of index,HijFor the corresponding risk size of j-th of index, and the risk index of each calamity member according to the mine and dangerous
The mapping table of property grade determines the initial Hazard rank of each calamity member of the mine；
Step 3: when the mine each calamity member between there are when triggering relationship, show trigger calamity member initial risk refer to
Number HiIt cannot reflect its risk completely, need to be adjusted according to triggering relationship, introduce variable Δ HiTo characterize initial risk
Thus the knots modification of index establishes the Space Coupling rule based on triggering relationship:
,
Modified hazard index H is obtained according to the rulei', it may be assumed that Hi'=Hi+ΔHi, work as HiIts danger etc. is thought when ' > 5
Grade be it is very high, then to this variety of calamity member index for selection and be classified, referred to according to the availability of basic data and pertinent literature
It marks weight to determine by analytic hierarchy process (AHP), is finally completed the determination of the initial Hazard rank to triggering calamity member；
Step 4: taking sampling statistics analytic approach, all disaster accidents which occurs are united
Score class carries out identification and statistics to the calamity member of triggering relationship, and draws the triggering relationship statistical form between disaster:
,
In table, 1 is indicated there are triggering relationship, and 0 indicates to be not present；Later, risk index or the amendment of each calamity member are calculated
Risk index, while showing in the form of pie chart the ratio that single calamity member causes calamity and disaster-ridden member causes calamity, and by respective institute's accounting
Example, which is considered as, causes calamity contribution degree；
Step 5: the analysis according to step 4 and combination to different calamity members cause calamity contribution degree, specifies the master in disaster accident
Coupling level and sequence between calamity member, the sequence of other factors causing disasters, different calamity members are led, disaster-ridden first Decoupled Model is then established；
Step 6: the analysis based on step 5 takes corresponding hazard mitigation measure as a result, being directed to specific calamity element type, carry out
It decouples and achievees the purpose that reduce or eliminate calamity member；
Step 7: in the mine later period production process, choosing the period of same duration after hazard mitigation measure is implemented, unite
The disaster accident of the mine within the time period is counted, calculates the risk index of each calamity member again, and formed with pie chart and difference is presented
Calamity member causes calamity proportion, causes the reduction amount of calamity ratio to be considered as the contribution degree of each hazard mitigation measure, overall merit decoupling all calamity members
Effect；
Step 8: circulation implements decoupling hazard mitigation measure based on step 1 to eight, mine disaster is eliminated, is finally determined disaster-ridden
The whole and local decoupling sequence of member coupling hard-to-recovery reserve, proposes decoupling method.
Compared with prior art, the invention has the benefit that
Based on hard-to-recovery reserve and polynary Disasters Type, can construct to exploit the polynary disaster coupling model for core, point
It analyses disaster-ridden first factors causing disaster and intercouples and relationship and constitute specific gravity, establish different calamity members and cause calamity contribution degree evaluation methods and index body
System；
Different calamity members cause calamity contribution degree in risk index and recovery activity by calculating each calamity member, can determine leading
Coupling level and sequence between calamity member, the sequence of other factors causing disasters, different calamity members；
Decoupling effect evaluation method is proposed, mitigation contribution degree index system corresponding with calamity contribution degree is caused is established, and
Based on coupled relation and mitigation contribution degree between all calamities member for constituting coupling disaster accident, it is determined that disaster-ridden member coupling hard-to-recovery reserve is whole
Body and local decoupling sequence；
Then, to exploit as core, decoupling method is proposed；It is closed according to interacting between decoupling level and sequence, calamity member
System simplifies the target for administering mine disaster, in Main Stages such as Mine hydrogeology, construction and productions, decouples calamity member, reduces coupling
Conjunction degree finally eliminates mine disaster, and then improves shaft production safety.
Detailed description of the invention
Fig. 1 is disaster-ridden first coupling model of the invention；
Detailed description of the invention: top-roof collapse；Watt-gas explosion (burning)；Prominent-coal and gas prominent；Thoroughly-thoroughly (prominent) water thing
Therefore；Combustion-spontaneous combustion of coal seam is under fire；Punching-bump (strong mine pressure)；Heat-underground thermal pollution.
Fig. 2 is coupling level and sequence between different calamities member of the invention；
Fig. 3 is disaster-ridden first Decoupled Model of the invention；
Fig. 4 is disaster-ridden first decoupling method of the invention.
Specific embodiment
The invention will be further described combined with specific embodiments below, in the illustrative examples and explanation of the invention
For explaining the present invention, but it is not as a limitation of the invention.
The disaster-ridden member coupling hard-to-recovery reserve of one kind of the present embodiment decouples recovery method, comprising the following steps:
Step 1: analyzing for specific mine, according to its geologic information and history accident rate, the whole of the mine is determined
Body Disasters Type, the calamity seed type include complicated hard-to-recovery reserve type and calamity element type, in the present embodiment, miscellaneous hard-to-recovery reserve class
Type specifically includes: half-edge coal seam, large-inclination-angle coal bed, girdle, irregular coal seam, steeply inclined thin seam, high-dipping are unstable
Coal seam, deep inclined thin coal seam, high inclination-angle irregular coal seam, thin and irregular coal seam, calamity element type specifically include: roof collapse,
Gas explosion (burning), coal and gas prominent, thoroughly (prominent) water accident, spontaneous combustion of coal seam ignition, bump (strong mine pressure), mine heat
Evil；Then it constructs to exploit the polynary disaster coupling model for core, as shown in Figure 1, it should be noted that the top in Fig. 1 is
Represent roof collapse；Watt i.e. represent gas explosion (burning)；It is prominent to represent coal and gas prominent；(prominent) water thing thoroughly is represented thoroughly
Therefore；Combustion represents spontaneous combustion of coal seam ignition；Punching represents bump (strong mine pressure)；Heat represents underground thermal pollution.
Step 2: characterizing each calamity member of the mine and its risk of disaster index with risk index H, and determine the mine
The risk index of each calamity member of well and the mapping table of Hazard rank:
,
And the initial risk index of each calamity member of the mine is calculated using index weights method, index weights method calculates public
Formula:In formula: m is calamity member sum, and calamity member is marked with i, i=1,
2 ..., m；N is the index number of disaster i, and index is marked with j, j=1,2 ..., n；wijFor the corresponding weight of j-th of index,HijFor the corresponding risk size of j-th of index, and the risk index of each calamity member according to the mine and dangerous
The mapping table of property grade determines the initial Hazard rank of each calamity member of the mine.
Step 3: when between each calamity of mine member there are when triggering relationship, as shown in figure 1, such as roof collapse, gas explosion
(burning), coal and gas prominent, thoroughly (prominent) water accident, spontaneous combustion of coal seam ignition, in bump (strong mine pressure), underground thermal pollution arbitrarily
The dual factors that the combination of two calamities member generates couple risk, and any calamity member can be used as leading calamity member；Roof collapse, gas explosion
(burning), coal and gas prominent, thoroughly (prominent) water accident, spontaneous combustion of coal seam ignition, three kinds in bump (strong mine pressure), underground thermal pollution
The various factors coupling risk that the combination of the above calamity member generates, any calamity member can be used as leading calamity member；Show to trigger calamity member
Initial risk index HiIt cannot reflect its risk completely, need to be adjusted according to triggering relationship, introduce variable Δ HiCarry out table
The knots modification of initial risk index is levied, the Space Coupling rule based on triggering relationship is thus established:
,
Modified hazard index H is obtained according to the rulei', it may be assumed that Hi'=Hi+ΔHi, work as HiIts danger etc. is thought when ' > 5
Grade be it is very high, then according to the availability of basic data, pertinent literature and expertise to this variety of calamity member index for selection
And be classified, index weights are then determined according to expert judgments by analytic hierarchy process (AHP), are finally completed the initial risk to triggering calamity member
The determination of grade.
Step 4: taking sampling statistics analytic approach, all disaster accidents which occurs are united
Score class carries out identification and statistics to the calamity member of triggering relationship, and draws the triggering relationship statistical form between disaster:
,
In table, 1 is indicated there are triggering relationship, and 0 indicates to be not present；Later, risk index or the amendment of each calamity member are calculated
Risk index, while showing in the form of pie chart the ratio that single calamity member causes calamity and disaster-ridden member causes calamity, and by respective institute's accounting
Example, which is considered as, causes calamity contribution degree.
Step 5: the analysis according to step 4 and combination to different calamity members cause calamity contribution degree, specifies the master in disaster accident
Coupling level and sequence between calamity member, the sequence of other factors causing disasters, different calamity members are led, as shown in Figure 2；Then disaster-ridden member decoupling is established
Model, as shown in Figure 3.
Step 6: the analysis based on step 5 takes corresponding hazard mitigation measure as a result, being directed to specific calamity element type, carry out
It decouples and achievees the purpose that reduce or eliminate calamity member.
Step 7: in the mine later period production process, choosing the period of same duration after hazard mitigation measure is implemented, unite
The disaster accident of the mine within the time period is counted, calculates the risk index of each calamity member again, and formed with pie chart and difference is presented
Calamity member causes calamity proportion, causes the reduction amount of calamity ratio to be considered as the contribution degree of each hazard mitigation measure, overall merit decoupling all calamity members
Effect.
Step 8: circulation implements decoupling hazard mitigation measure based on step 1 to eight, mine disaster is eliminated, is finally determined disaster-ridden
The whole and local decoupling sequence of member coupling hard-to-recovery reserve, proposes decoupling method, as shown in Figure 4.
The limitation that technical solution of the present invention is not limited to the above specific embodiments, it is all to do according to the technique and scheme of the present invention
Technology deformation out, falls within the scope of protection of the present invention.
Claims (2)
1. a kind of disaster-ridden member coupling hard-to-recovery reserve decouples recovery method, which comprises the following steps:
Step 1: analyzing for specific mine, according to its geologic information and history accident rate, the whole calamity of the mine is determined
Evil type, the Disasters Type include complicated hard-to-recovery reserve type and calamity element type, are then constructed to exploit as the polynary of core
Disaster coupling model；
Step 2: characterizing each calamity member of the mine and its risk of disaster index with risk index H, and determine the mine
The risk index of each calamity member and the mapping table of Hazard rank:
,
And the initial risk index of each calamity member of the mine is calculated using index weights method, index weights method calculation formula:I=1,2 ..., m, j=1,2 ..., n, in formula: m is calamity member sum, and calamity member is marked with i, i=1,
2 ..., m；N is the index number of disaster i, and index is marked with j, j=1,2 ..., n；wijFor the corresponding weight of j-th of index,HijFor the corresponding risk size of j-th of index, and the risk index of each calamity member according to the mine and dangerous
The mapping table of property grade determines the initial Hazard rank of each calamity member of the mine；
Step 3: when there are the initial risk index H for when triggering relationship, showing triggering calamity member between each calamity of mine memberiNo
It can reflect its risk completely, need to be adjusted according to triggering relationship, introduce variable Δ HiTo characterize initial risk index
Knots modification, thus establish based on triggering relationship Space Coupling rule:
,
Modified hazard index H is obtained according to the rulei', it may be assumed that Hi'=Hi+ΔHi, work as HiThink that its danger classes is when ' > 5
It is very high, then to this variety of calamity member index for selection and divided according to the availability of basic data, pertinent literature and expertise
Grade, index weights are then determined according to expert judgments by analytic hierarchy process (AHP), are finally completed the initial Hazard rank to triggering calamity member
Determination；
Step 4: taking sampling statistics analytic approach, statistical is carried out to all disaster accidents that the mine certain time period occurs
Class carries out identification and statistics to the calamity member of triggering relationship；Later, the risk index or amendment risk for calculating each calamity member refer to
Number, while showing single calamity member in the form of pie chart and calamity and disaster-ridden member is caused to cause the ratio of calamity, and respective proportion is considered as cause
Calamity contribution degree；
Step 5: the analysis according to step 4 and combination to different calamity members cause calamity contribution degree, specifies the leading calamity in disaster accident
Then coupling level and sequence between first, other factors causing disaster sequences, different calamity members establish disaster-ridden first Decoupled Model；
Step 6: the analysis based on step 5 takes corresponding hazard mitigation measure as a result, being directed to specific calamity element type, decoupled
And achieve the purpose that reduce or eliminate calamity member；
Step 7: in the mine later period production process, choosing the period of same duration, statistics should after hazard mitigation measure is implemented
The disaster accident of mine within the time period calculates the risk index of each calamity member again, and is formed with pie chart and different calamity members are presented
Calamity proportion is caused, causes the reduction amount of calamity ratio to be considered as the contribution degree of each hazard mitigation measure, overall merit decoupling effect all calamity members；
Step 8: circulation implements decoupling hazard mitigation measure, eliminates mine disaster based on step 1 to eight, disaster-ridden first coupling is finally determined
The whole and local decoupling sequence of hard-to-recovery reserve is closed, proposes decoupling method.
2. disaster-ridden member coupling hard-to-recovery reserve according to claim 1 decouples recovery method, it is characterised in that: the step 4
In identification and statistics are carried out to the calamity member of triggering relationship after, and draw the triggering relationship statistical form between disaster:
,
In table, 1 is indicated there are triggering relationship, and 0 indicates to be not present.
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