CN108256259A - The method and device of seat earth slip casting target area is determined based on Fuzzy Level Analytic Approach - Google Patents
The method and device of seat earth slip casting target area is determined based on Fuzzy Level Analytic Approach Download PDFInfo
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Abstract
The present invention relates to the method and devices that seat earth slip casting target area is determined based on Fuzzy Level Analytic Approach.The present invention is based on the Dominated Factors of floor strata water-resisting property, it sets up than more comprehensive water-resisting property overall merit subsystem, with Fuzzy AHP weight is assigned to each Dominated Factors, consider the interaction between each index and combined effect, establish more unified slip casting target area judgment method, so that the discovery of target area has more operability, convenient for promoting;The geologic information obtained can be made full use of, more can accurately judge the position of slip casting target area.
Description
Technical field
The present invention relates to a kind of target areas to determine method and device, belongs to coal mining technology field, and in particular to Yi Zhongji
The method and device of seat earth slip casting target area is determined in Fuzzy Level Analytic Approach.
Background technology
Coalfield deep ordovician limestone has the characteristics that watery is strong, hydraulic pressure is high, and in paleotopography, ancient landform, the ancient hydrology
Under the multifactor impacts such as geologic climate, the water proof depth of stratum of the following group seat earth to grey strong aquifer difficult to understand has height unevenness
And the characteristics of anisotropy, especially in the region of the geological structures such as fold, fracture, karst collapse col umn development, effective water barrier becomes
Weaker or even missing causes seriously to be threatened by bottom grey gushing water difficult to understand during most of the following group coal back production.In order to solve to pacify
The problem of full back production, generally use floor grouting renovation technique reinforces water-resisting floor and thin layer limestone aquifer changes
It makes, so as to increase effective water-resisting layer thickness and reach the target of safety coal extraction.The quality of grout transformation engineering depends primarily on note
Three target area selection, injecting paste material, grouting process factors are starched, wherein, the selection of slip casting target area is injecting paste material selection, grouting process
Therefore how the basis of optimization, reasonably selects slip casting target area very crucial, in order to solve this problem, seat earth is noted
The water-resisting property progress systematic research for starching medium-rock stratum is very necessary.
At present, for the selection of bottom slip casting target area, mainly by the analysis method that conventional qualitative or semidefinite quantifies into
The selection of row slip casting target area.Although these methods have some saving graces, but these methods are deposited in specific practical engineering application
In the deficiency of several aspects:(1) selection of rock stratum water-resisting property evaluation index is not comprehensive, it is difficult to mutual between considering each index
Effect and combined effect;(2) artificial subjective factors are larger, evaluation criterion disunity, higher to personnel qualifications, it is impossible to wide
It is general universal.
Fuzzy Analytic Hierarchy Process (FAPH) is the modified version of analytic hierarchy process (AHP), has all advantages of analytic hierarchy process (AHP),
It is a kind of qualitative and be quantitatively combined, analysis method of systematization, stratification, its main feature is that make complicated system decomposition,
Subjective thought process mathematicization, the systematization of people on solving the problems, such as there can be terseness, especially solve unstructured determine
There is apparent advantage in question and answer on politics topic, meanwhile, Fuzzy Analytic Hierarchy Process uses three-level scale, convenient for building jdgement matrix,
It is more suitable for the judge of quantitative and semi-quantitative.GIS-Geographic Information System (GIS) is to combine geography and cartography and the meter of remote sensing
Calculation machine tool has the function of powerful data acquisition, data management, image analysis, image output, information fusion technology etc., has
Very strong compatibility and autgmentability facilitates the insertion of mathematical model and solves the problems, such as engineering spatial analysis.But up to the present, also
There is no a set of overall merit side for the selection of floor grouting target location based on Fuzzy AHP and GIS information platforms
Method.
Invention content
The present invention mainly solves the technical issues of above-mentioned present in the prior art, provides a kind of based on fuzzy hierarchy
Analysis determines seat earth transformation slip casting target area method and device.This method and device are based on Comprehensive analytic hierarchy process and GIS believes
Breath platform sets up the appraisement system of slip casting target area selection, can make full use of the geologic information obtained, can be more accurate
The position for judging slip casting target area.
The above-mentioned technical problem of the present invention is mainly what is be addressed by following technical proposals:
1) water-resisting property overall merit subsystem is established, including selection coal seam rock stratum water-resisting property Dominated Factors, with mould
Paste layer fractional analysis assigns weight to Dominated Factors, establishes Dominated Factors evaluation criterion;
2) the vertical layer position in slip casting target area determines, vertical segmentation is determined including according to water bursting coefficient and mining under safe waterpressure of aquifer theory
Length according to the vertical development characteristics of floor strata and carries out vertical sub- segmentation with available complete data degree and divides, Utilization assessment
Submodel is to vertical sub- segmentation rock stratum water-resisting property overall merit;
3) slip casting target area plan-position determines, including each Dominated Factors special topic subgraph of drafting and utilizes GIS information skills
Art special topic subgraph merges and subregion divides;
4) water proof evaluation model validity check, judges whether water proof evaluation model precision meets research area's Practical Project and want
It asks;
5) slip casting target area finally determines, makes when water proof evaluation model precision is met the requirements, and carries out slip casting target location and determines;
Therefore, the invention has the advantages that:(1) Dominated Factors of the based on floor strata water-resisting property, it is established that relatively more complete
The water-resisting property overall merit subsystem in face assigns weight to each Dominated Factors with Fuzzy AHP, considers each
Interaction and combined effect between index;(2) establishes more unified slip casting target area judgment method according to related specifications,
Reduce artificial subjective factor so that the discovery of target area has more operability, convenient for promoting;(3) be based on Fuzzy AHP and
GIS information platforms set up the overall evaluation system of slip casting target area selection, can make full use of the geologic information obtained so that
The determining more accurate and science of slip casting target area.
Description of the drawings
Attached drawing 1 is that the floor grouting target area of the present invention determines particular flow sheet;
Attached drawing 2 is the bottom plate segmentation rock stratum entirety water-resisting property overall evaluation system of the present invention;
Attached drawing 3 is rock stratum water-resisting property plane subregion overall evaluation system;
Attached drawing 4 is seat earth rock stratum piecewise graph;
Attached drawing 5 is floor strata water-resisting property plane subregion schematic diagram.
Specific embodiment
Below with reference to the embodiments and with reference to the accompanying drawing the technical solutions of the present invention will be further described.
Embodiment:
The method of the present embodiment is as shown in Figure 1.Main to include establishing water-resisting property overall merit subsystem, slip casting target area is vertical
Layer position determines that slip casting target area plan-position determines, water proof evaluation model validity check and etc..It is detailed below.
1. establish water-resisting property overall evaluation system
(1) appraisement system Dominated Factors are selected
Seat earth grouting horizon is mainly seat earth thin layer limestone and grey cap rock layer difficult to understand, both belongs to limestone,
It needs to analyze the Dominated Factors for influencing karsts developing area.In order to determine slip casting target area place layer position, according to fuzzy synthesis layer
Secondary method sets up bottom plate segmentation rock stratum entirety water-resisting property overall evaluation system (Fig. 2), and carries out synthesis to bottom plate segmentation rock stratum and comment
Valency, including 3 rule layer indexs and 12 solution layer indexs:V={ rock mass porosity V1, water chemistry and hydrodynamic force V2, rock
Property V3};V1(rock mass porosity)={ drilling rate of karstification V11, core recovery V12, karst porosity V13, flushing liquor wastage
V14, fracture filling degree V15, permeability V16};V2(flow and water chemistry)={ bore flooding quantity V21, aqueous hole number V22, PH
Value V23, water temperature V24};V3(lithology)={ rock constituents V31, rock stratum combination V32}.Destination layer V is divided into four grades, that is, water proof
Property strong, water-resisting property compared with it is strong, water-resisting property is medium, water-resisting property is weak.In grout transformation engineering, controlled using water-resisting property incompetent beds as slip casting
Manage target area.
In order to determine plane slip casting target location, bottom plate segmentation rock stratum water proof is set up also according to fuzzy synthesis stratification
Mild-natured face subregion overall evaluation system (Fig. 3), including 4 rule layer indexs and 15 solution layer indexs, H={ rock mass holes
Gap H1, flow and water chemistry H2, lithology H3, geological structure H4};H1(body porosity)={ drilling rate of karstification H11, core takes
Rate H12, karst porosity H13, flushing liquor wastage H14, fracture filling degree H15, permeability H16};H2(flow and water chemistry)=
{ bore flooding quantity H21, aqueous hole number H22, pH value H23, water temperature H24};H3(lithology)={ rock constituents H31, rock stratum combination
H32, H4={ mature fault degree H41, fold axle portion H42, karst collapse col umn H43}.Destination layer H is divided into four grades, that is, water-resisting property
By force, water-resisting property compared with it is strong, water-resisting property is medium, water-resisting property is weak.Using the weak plane subregion of water-resisting property as grouting treatment target area, water-resisting property
Medium plane subregion need to do further engineering exploration and determine if to need slip casting.
(2) Dominated Factors weight is determined using Fuzzy AHP
Bottom plate segmentation rock stratum entirety water-resisting property overall evaluation system and rock stratum water-resisting property are determined using Fuzzy AHP
The weighted value of each index of plane subregion overall evaluation system.It is as follows:
1. establish precedence relation matrix
The matrix is fuzzy complementary matrix R=(rij)n×n, matrix factor determines according to following rules:
2. precedence relation matrix is transformed into Fuzzy consistent matrix
It first sums, is denoted as by row to R
In formula, n is the number of Dominated Factors in sub- evaluation system;
Implement row transformation, obtain Fuzzy consistent matrix F=(fij)n×n
3. Mode of Level Simple Sequence
According to fuzzy consistent judgment matrix to the importance ranking of Dominated Factors, Si (k)Represent k i-th of Dominated Factors pair of layer
(k-1) in layer certain Dominated Factors significance sequence, commonly use following root method:
4. total hierarchial sorting
So-called total hierarchial sorting, the Dominated Factors that as calculating same layer includes are to destination layer (top) importance
Sequencing weight, the weight of Dominated Factors needs from top to bottom successively sequence progress, for the top following second layer, level
Single sequence is total sequence.On the basis of level but sequence, it is assumed that calculated -1 layer of m element of kth relative to general objective
Weight S(k-1)=(S1 (k-1),S2 (k-1),…,Sm (k-1))T, n element of kth layer is for last layer (kth layer) j-th of element
Single weight order is pj (k)=(p1j (k),p2j (k),…,pnj (k))T, wherein being not zero by the weight of the j elements dominated.Enable P(k)=
(p1 (k),p2 (k),…,pn (k)), represent sequence of the kth layer element to -1 layer element of kth, then kth layer element is for general objective
Always it is ordered as:
S(k)=(S1 (k),S2 (k),…,Sn (k))T=p(k)S(k-1) (4)
In formula, S(k)Represent the weight vectors of all Dominated Factors centering targets of kth layer.
Each Dominated Factors weight initial assignment table of 1 sub- evaluation system of table
Dominated Factors matrix is built to Analysis The Main Control Factor and judgement by expert, by calculating, obtains two respectively
The weight initial assignment of sub- overall evaluation system, such as table 1, system V represents bottom plate segmentation rock stratum entirety water-resisting property overall merit body
System, system H represents rock stratum water-resisting property plane subregion overall evaluation system, can be practical according to research area in specific Practical Project
Geological conditions is adjusted weight initial assignment.
(3) evaluation criterion of Dominated Factors
Each Dominated Factors influence difference to rock stratum water-resisting property, by consulting related specifications, it is established that each Dominated Factors grade
Evaluation criterion table (table 2).The table is shared for two subsystems:Bottom plate segmentation rock stratum entirety water-resisting property overall evaluation system is being evaluated
In the process, 12 Dominated Factors included using rock mass pore property, flow and hydrochemical characteristics, geological structure, due to the son
Appraisement system reflects the average level of floor strata water-resisting property, therefore each Dominated Factors are averaged, for example, drilling core rate is real
For average penetration core rate;Rock stratum water-resisting property plane subregion overall evaluation system needs to use listed in table 2 in evaluation procedure
15 Dominated Factors, in addition to four rock constituents, tomography, fold axis, karst collapse col umn Dominated Factors, remaining each Dominated Factors is using
When be averaged.
2 Dominated Factors water-resisting property grade evaluation criterion table of table
Note:A.Lu is Lugeon unit, is the mean pressure inbound traffics of every meter of examination section, in terms of L/min under 1Mpa pressure;
B. the opinion rating of each Dominated Factors corresponds to hundred-mark system, weak:< 60;It is medium:60-80;It is relatively strong:80-90;By force:>
90;
2. the vertical layer position in slip casting target area determines
(1) bottom rock stratum vertical fragmentation
To realize that safe working is pressed in the following group ribbing, therefore, to assure that seat earth has enough effective water proof rock stratum, therefore, needs
Bottom plate water proof thickness critical value is calculated.At present, common method is to push away water-resisting floor by the way that water inrush coefficient method is counter
Thickness critical value M, concrete operation step are as follows:
In formula, M is bottom plate water proof thickness critical value (m), and P is the hydraulic pressure (MPa) that bears of water-resisting floor, TsFor gushing water system
Number (MPa/m).National real data is seen, bottom plate is generally no greater than 0.06MPa/m by structure destruction block water bursting coefficient, normally
Block is not more than 0.1MPa/m.
Seat earth water proof rock stratum vertical fragmentation length Mi=5,10 ... m are divided according to actual formation condition.
For example, to floor strata according to sub- segmentation Mi=5m is segmented, such as Fig. 4.
(2) bottom plate is respectively segmented rock stratum overall merit
For the quantitative target in each Dominated Factors, establishing criteria statistical value obtains each grade scoring;For qualitative master
Control factor then carries out grade scoring using expert's Evaluation Method;Last bottom plate is respectively segmented rock stratum water-resisting property evaluation mathematical model can table
It is shown as:
In formula, WviFor i-th of rock stratum sectional evaluation integrated value of bottom plate,Rock stratum overall evaluation system is respectively segmented for bottom plate
In 12 Dominated Factors relative to the weight vectors of target, which is obtained by (2) step in step 1;ViThe bottom of for
Plate i-th be segmented rock stratum in each Dominated Factors scoring vector, the scoring vector be by bottom plate i-th be segmented rock stratum in each master control because
The real data of element judges to obtain with the comparison of evaluation criterion table 2;
According to WviComprehensive score judges its water-resisting property grade interval being subordinate to and whether needs slip casting:If comprehensive score is subordinate to
Belong to the weak section of water-resisting property, then judge that the rock stratum is segmented into slip casting target area layer position, if being under the jurisdiction of the medium section of water-resisting property, need
According to the exploration data in later stage, including later stage physical prospecting, the updates drilled etc., further determine whether as slip casting target area
Layer position.
3. slip casting target area plan-position determines
The keypoint treatment layer position particulars that the vertical layer position in slip casting target area determines in collection step 2, and by relevant geography
Coordinate information and judge data input generalized information system, build up Dominated Factors related data database;Utilize GIS spatial analysis tools
To processing such as research interval mesh generation, interpolation, Dominated Factors thematic map is drawn out, for example, drilling rate of karstification, core are taken
The thematic maps such as rate, karst porosity, flushing liquor wastage, fracture filling degree.According to the thematic map of determining Dominated Factors and
The weight of each index of rock stratum water-resisting property plane subregion, establishes slip casting target area plane subregion mathematical model:
In formula, WhEach grid point water-resisting property comprehensive score of layer bit plane, S are administered for emphasishiIt is commented for plane water-resisting property subregion
I-th of Dominated Factors is relative to the weight vectors of target, H in valency system solution layeri(x, y) is in the research any grid positions of layer
The comprehensive score of i-th of Dominated Factors, (x, y) are the coordinate of grid point, and n is the number of Dominated Factors in appraisement system.
The Comprehensive Evaluation figure of GIS synthesis is classified, its water-resisting property grade interval being subordinate to is judged and whether needs to note
Starch (same to step 2:If comprehensive score is under the jurisdiction of the weak section of water-resisting property, the subregion rock stratum is judged for slip casting target area, if being under the jurisdiction of
The medium section of water-resisting property, then need the exploration data according to the later stage, further determines whether as slip casting target area.
4. water proof evaluation model validity check
According to evaluation result, using pilot method, i.e., at the one of prediction target area or many places carry out site layout project drilling, lead to
The parameter measurements such as drilling rate of karstification, core recovery, karst porosity, flushing liquor wastage are crossed, verification target location prediction is
It is no accurate, so that it is determined that each Dominated Factors weight of appraisement system if appropriate for survey region, if test effect is bad, needs weight
Each Dominated Factors weighted value is newly adjusted, until slip casting target area meets required precision.
5. slip casting target location determines
Each Dominated Factors weighted value for being suitble to research area is determined by step 4, then progress step 2,3 finally determine research
The position of area slip casting target area.For example, determine that slip casting target area layer position section is 30-35m in step 2, it can after being merged by GIS information
Floor strata water-resisting property plane block plan is obtained, Fig. 5 is schematic diagram.
Specific embodiment described herein is only an example for the spirit of the invention.Technology belonging to the present invention is led
The technical staff in domain can do various modifications or additions to described specific embodiment or replace in a similar way
In generation, however, it does not deviate from the spirit of the invention or beyond the scope of the appended claims.
Claims (8)
- A kind of 1. method that seat earth slip casting target area is determined based on Fuzzy Level Analytic Approach, which is characterized in that including:Appraisement system determines step, for selecting coal seam rock stratum water-resisting property Dominated Factors, with Fuzzy AHP to master control Factor assigns weight, establishes Dominated Factors evaluation criterion;Perpendicular layers position determines step, for determining vertical section length and carrying out vertical subsegment division, evaluation subsegment rock stratum water proof Property, determine slip casting target area layer position according to evaluation result;Plan-position determines step, establishes rock stratum water-resisting property plane partition model and the water proof of overall merit slip casting target area layer position Property, it will be judged as slip casting target area in the rock stratum in weak water-resisting property section;Evaluation effect checking procedure when precision is unsatisfactory for requiring when obtained slip casting target area, adjusts each Dominated Factors weighted value After repeat the above steps redefine slip casting target area until slip casting target area meet required precision.
- 2. a kind of method that seat earth slip casting target area is determined based on Fuzzy Level Analytic Approach according to claim 1, special Sign is that the appraisement system determines that step specifically includes following sub-step:Dominated Factors determine sub-step, for determining to set up bottom plate segmentation rock stratum entirety water-resisting property overall evaluation system and bottom Plate is segmented rock stratum water-resisting property plane subregion overall evaluation system;Factor weight determines sub-step, determines that bottom plate is segmented rock stratum entirety water-resisting property overall merit body using Fuzzy AHP The weighted value of each index of system and rock stratum water-resisting property plane subregion overall evaluation system;Grade evaluation determines sub-step, for establishing Dominated Factors and corresponding grade evaluation criterion table.
- 3. a kind of method that seat earth slip casting target area is determined based on Fuzzy Level Analytic Approach according to claim 1, special Sign is that the perpendicular layers position determines that step specifically includes following sub-step:Rock stratum vertical fragmentation sub-step is calculated bottom plate water proof thickness critical value, and is divided into bottom plate using the critical value as interval Several sections;Formation evaluation sub-step is segmented, bottom plate is established and is respectively segmented rock stratum water-resisting property evaluation model and calculates each section of evaluation of estimate, will comment The rock stratum that value is under the jurisdiction of the weak section of water-resisting property is judged as slip casting target area layer position.
- 4. a kind of method that seat earth slip casting target area is determined based on Fuzzy Level Analytic Approach according to claim 1, special Sign is that the plan-position determines that step further comprises:Thematic maps draws sub-step, collects slip casting target area layer position data, draws Dominated Factors thematic map;Plane overall merit sub-step establishes rock stratum water-resisting property plane partition model and the water proof of overall merit slip casting target area layer position Property, it will be judged as slip casting target area in the rock stratum in weak water-resisting property section.
- 5. a kind of device that seat earth slip casting target area is determined based on Fuzzy Level Analytic Approach, which is characterized in that including:Appraisement system determining module, for selecting coal seam rock stratum water-resisting property Dominated Factors, with Fuzzy AHP to master control Factor assigns weight, establishes Dominated Factors evaluation criterion;Perpendicular layers position determining module, for determining vertical section length and carrying out vertical subsegment division, evaluation subsegment rock stratum water proof Property, determine slip casting target area layer position according to evaluation result;Plan-position determining module establishes rock stratum water-resisting property plane partition model and the water proof of overall merit slip casting target area layer position Property, it will be judged as slip casting target area in the rock stratum in weak water-resisting property section;Evaluation effect inspection module when precision is unsatisfactory for requiring when obtained slip casting target area, adjusts each Dominated Factors weighted value After call above-mentioned module redefine slip casting target area until slip casting target area meet required precision.
- 6. a kind of device that seat earth slip casting target area is determined based on Fuzzy Level Analytic Approach according to claim 5, special Sign is that the appraisement system determining module is specifically included with lower unit:Dominated Factors determination unit, for determining to set up bottom plate segmentation rock stratum entirety water-resisting property overall evaluation system and bottom plate It is segmented rock stratum water-resisting property plane subregion overall evaluation system;Factor weight determination unit determines that bottom plate is segmented rock stratum entirety water-resisting property overall evaluation system using Fuzzy AHP With the weighted value of each index of rock stratum water-resisting property plane subregion overall evaluation system;Grade evaluates determination unit, for establishing Dominated Factors and corresponding grade evaluation criterion table.
- 7. a kind of device that seat earth slip casting target area is determined based on Fuzzy Level Analytic Approach according to claim 5, special Sign is that perpendicular layers position determining module is specifically included with lower unit:Rock stratum vertical fragmentation unit calculates bottom plate water proof thickness critical value, and if being divided into bottom plate using the critical value as interval Dry section;Formation evaluation unit is segmented, bottom plate is established and is respectively segmented rock stratum water-resisting property evaluation model and calculates each section of evaluation of estimate, will evaluate The rock stratum that value is under the jurisdiction of the weak section of water-resisting property is judged as slip casting target area layer position.
- 8. a kind of device that seat earth slip casting target area is determined based on Fuzzy Level Analytic Approach according to claim 5, special Sign is that the plan-position determining module further comprises:Thematic maps drawing unit collects slip casting target area layer position data, draws Dominated Factors thematic map;Plane overall merit unit establishes rock stratum water-resisting property plane partition model and the water proof of overall merit slip casting target area layer position Property, it will be judged as slip casting target area in the rock stratum in weak water-resisting property section.
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CN108960662A (en) * | 2018-07-17 | 2018-12-07 | 安徽理工大学 | A kind of seat earth limestone gushing water evaluation method based on Fuzzy Level Analytic Approach |
CN112529443A (en) * | 2020-12-18 | 2021-03-19 | 河南理工大学 | Coal bed gas development target area optimization method based on fuzzy pattern recognition |
CN112529443B (en) * | 2020-12-18 | 2024-05-28 | 河南理工大学 | Coalbed methane development target area optimization method based on fuzzy pattern recognition |
CN112901268A (en) * | 2021-01-19 | 2021-06-04 | 宿州学院 | Method for preventing and treating water damage of coal seam floor |
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