CN107328919B - Mine slope On Engineering Stability Classification of Rock Masses analysis method - Google Patents
Mine slope On Engineering Stability Classification of Rock Masses analysis method Download PDFInfo
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- CN107328919B CN107328919B CN201710695325.XA CN201710695325A CN107328919B CN 107328919 B CN107328919 B CN 107328919B CN 201710695325 A CN201710695325 A CN 201710695325A CN 107328919 B CN107328919 B CN 107328919B
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- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
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Abstract
A kind of mine slope On Engineering Stability Classification of Rock Masses analysis method, comprising the following steps: 1) in open field mine, investigate the rock mass discontinuity developmental state of slope rock mass range.The occurrence and scale of field measurement stratification, foliation, thousand pieces of reasons, piece reason, tomography and joint, and edited and recorded respectively；2) be classified the structural plane developed in slope rock mass: the tomography for a multiple that stratification, foliation, thousand pieces of reasons, piece reason and structural plane scale are more than or equal to overall side slope scale is through structural plane, the tomography that structural plane scale is less than a multiple of overall side slope scale is non-through structural plane, and joint is small-scale structure face；3) according to the determining side slope face tendency of the design state of mine totality side slope and inclination angle, stereogram is acted as with the tendency and inclination angle one for running through structural plane, carries out the overall stability Latent destruction pattern analysis of rock body quality of mine totality side slope.The principle of the invention is simple and convenient to operate, is low in cost, using effect is good.
Description
Technical field
The present invention relates to mine slope On Engineering Stability Classification of Rock Masses analysis methods, are suitable for according to field condition mine side
The rock mass discontinuity investigation on slope carries out the occasion of mine slope rock mass engineering project estimation of stability.
Background technique
Development has the structural plane of different scales in the engineering rock mass of mine slope, and mine slope needs often according to exploitation
A series of bench slope is provided on the basis of overall side slope.The estimation of stability of mine slope will not only evaluate totality
The stability of side slope also needs the stability of evaluation bench slope.Studies have shown that the stability of mine slope is by rock mass discontinuity control
System: the occurrence of structural plane, scale, combination form and its determine that mine slope is possible latent with the spatial composing relations in side slope face
In failure mode, a possibility that mechanical characteristic of structural plane determines mine slope potential sliding rupture；Mine Slope Stability
Evaluation should carry out general stability evaluation and local estimation of stability respectively, and different scales structural plane is to Mine Slope Stability shadow
Loud degree and range is different.
With being constantly progressive for society, the awareness of safety of people is more and more stronger, and requirement of the government to safety in production is also more next
It is higher.Mine Slope Stability not only has close connection to the safety of opencut, but also close with the economic benefit of opencut
Cut phase is closed.In the production phase of opencut, with the development of mine engineering, the stratum of exposure is more and more, and people can be more
Big range, more spaces obtain the Space geometric parameter and physical and mechanical parameter of more, more accurate structural plane, utilize institute
The new structural surface information grasped carries out Stability Classification analysis to mine slope engineering rock mass, realizes mine slope rock mass work
The accurate evaluation of journey stability, and tune appropriate is carried out to the intrinsic boundary of opencut or slope angle according to accurate evaluation result
It is whole, so that slope angle adjusted is met the principle of " not only economic but also safety ", so that the overall economic benefit of opencut is best.It is another
Aspect, mine slope are a kind of interim or semipermanent side slopes, they allow to occur a small amount of slump even scale of locality
Biggish slump, but the slump to cause casualties for not allowing to occur suddenly, also do not allow to cause heavy economic losses
Slump.Carry out mine slope engineering rock mass in the Production of Strip Mine stage and carry out Stability Classification analysis, realizes mine slope rock
The accurate evaluation of body engineering stability, decision, design and the construction that can be prevented and treated for side slope local instability location provide important
Foundation.Due at present still without mine slope On Engineering Stability Classification of Rock Masses analysis method, by 5-20 meters of scale of joint (small rule
Mode structure face) and scale 150-200 meters of tomography (non-through structural plane), even greater than 500 meters greater than 300 meters of scale of layers
Reason, foliation, thousand pieces of reasons, piece reason, tomography (running through structural plane) side slope different brackets side slope (are highly greater than 500 meters of superelevation side
Slope, 300-500 meters of height of high slope, 100-300 meters of height of middle side slope, the low side slope highly less than 100 meters) stability
Equalization, while the stability analysis for overall side slope are influenced, has desalinated structural plane scale on control different brackets mine side
Differentiation effect in slope stability, leads to Analysis of Slope Stability result serious distortion, Slope Stability Evaluation result is reliable
Property is poor.Therefore, mine slope rock mass work is carried out to the Different Effects of mine slope rock stability according to different scales structural plane
Journey Stability Classification analysis, to realize that the accurate evaluation of mine slope rock mass engineering project stability has great engineering value and huge
Big economic benefit.
Summary of the invention
In order to overcome prior art can not Different Effects according to different scales structural plane to mine slope rock stability,
The analysis of mine slope On Engineering Stability Classification of Rock Masses is carried out, to realize precisely evaluating for mine slope rock mass engineering project stability
Deficiency, the mine slope rock mass engineering project that the present invention provides a kind of principles to be simple and convenient to operate, low in cost, using effect is good
Stability Classification analysis method creates necessary condition to carry out accurately calculating for mining design.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of mine slope On Engineering Stability Classification of Rock Masses analysis method, comprising the following steps:
1) in open field mine, the rock mass discontinuity developmental state of slope rock mass range is investigated.Field measurement stratification, plate
The occurrence and scale of reason, thousand pieces of reasons, piece reason, tomography and joint, and edited and recorded respectively；
2) the side slope grade and scale determined according to the design state of mine totality side slope, the knot that will be developed in slope rock mass
Structure face is classified:
Stratification, foliation, thousand pieces of reasons, piece reason and structural plane scale are more than or equal to the tomography of a multiple of overall side slope scale
For through structural plane, the value range of a is 0.85~0.95；Structural plane scale is less than the tomography of a multiple of overall side slope scale
For non-through structural plane, joint is small-scale structure face；
3) according to the determining side slope face tendency of the design state of mine totality side slope and inclination angle, with the tendency for running through structural plane
Stereogram is acted as with inclination angle one, carries out the overall stability Latent destruction pattern analysis of rock body quality of mine totality side slope.
Further, the hierarchical analysis method is further comprising the steps of:
4) the side slope face tendency determined according to the design state of mine totality side slope and inclination angle, with non-through structural plane and small
The tendency in structure of size face and inclination angle one act as stereogram, and the local stability for carrying out rock body quality of mine totality side slope is potential broken
The Key Blocks of control rock body quality of mine totality side slope local stability are found out in bad pattern analysis.
Further, the hierarchical analysis method is further comprising the steps of:
5) the side slope grade and scale (height and width) determined according to the design state of mine bench slope, by side slope rock
The structural plane developed in body is classified:
Stratification, foliation, thousand pieces of reasons, piece reason and structural plane scale are more than or equal to the tomography of the b multiple of bench slope scale
For through structural plane, the value range of b is 0.85~0.95；Structural plane scale is less than the tomography of the b multiple of bench slope scale
For non-through structural plane, joint is small-scale structure face；
6) according to the determining side slope face tendency of the design state of mine bench slope and inclination angle, with the tendency for running through structural plane
Stereogram is acted as with inclination angle one, carries out the overall stability Latent destruction pattern analysis of rock body quality of mine bench slope.
Further, the hierarchical analysis method is further comprising the steps of:
7) the side slope face tendency determined according to the design state of mine bench slope and inclination angle, with non-through structural plane and small
The tendency in structure of size face and inclination angle one act as stereogram, and the local stability for carrying out rock body quality of mine bench slope is potential broken
The Key Blocks of control rock body quality of mine bench slope local stability are found out in bad pattern analysis.
The hierarchical analysis method is further comprising the steps of:
8) step 6) is repeated with 7), realizes the entirety of rock body quality of mine bench slope to all bench slopes in mine from top to bottom
The hierarchical analysis of the local stability of the hierarchical analysis and rock body quality of mine bench slope of stability.
Beneficial effects of the present invention are mainly manifested in: compared with prior art, mine slope On Engineering Stability Classification of Rock Masses
Analysis method principle is simple, easy to operate, low in cost, realizes grading evaluation, and using effect is good, convenient for being advised according to structural plane
The hierarchical analysis of mould classification and Mine Slope Stability is realized the evaluation of mine slope On Engineering Stability Classification of Rock Masses, is set for mining
Necessary condition is created in accurately calculating for meter, has biggish implementary value and economic results in society.
Specific embodiment
The invention will be further described below.
A kind of mine slope On Engineering Stability Classification of Rock Masses analysis method, comprising the following steps:
1) in open field mine, the rock mass discontinuity developmental state of slope rock mass range is investigated.Field measurement stratification, plate
The occurrence of the structural planes such as reason, thousand pieces of reasons, piece reason, tomography, joints and scale (height and width), and edited and recorded respectively；
2) the side slope grade and scale (height and width) determined according to the design state of mine totality side slope, by side slope rock
The structural plane developed in body is classified:
Structural plane scale is through knot close or larger than the stratification of overall side slope scale, foliation, thousand pieces of reasons, piece reason, tomography
Structure face (usual stratification, foliation, thousand pieces of reasons, piece reason are all greater than overall side slope), structural plane scale is significantly less than overall side slope rule
The tomography of mould is non-through structural plane, and structural plane scale is small-scale structure face significantly less than the joint of overall side slope scale；
Such as: stratification, foliation, thousand pieces of reasons, piece reason and structural plane scale are more than or equal to a multiple of overall side slope scale
Tomography is through structural plane, and the value range of a is 0.85~0.95；Structural plane scale is less than a multiple of overall side slope scale
Tomography is non-through structural plane, and joint is small-scale structure face；A can take 0.95,0.9 or 0.85, according to practical geological condition
It determines.
3) according to the determining side slope face tendency of the design state of mine totality side slope and inclination angle, with the tendency for running through structural plane
Stereogram is acted as with inclination angle one, carries out the overall stability Latent destruction pattern analysis of rock body quality of mine totality side slope；
4) the side slope face tendency determined according to the design state of mine totality side slope and inclination angle, with non-through structural plane and small
The tendency in structure of size face and inclination angle one act as stereogram, and the local stability for carrying out rock body quality of mine totality side slope is potential broken
The Key Blocks of control rock body quality of mine totality side slope local stability are found out in bad pattern analysis；
5) the side slope grade and scale (height and width) determined according to the design state of mine bench slope, by side slope rock
The structural plane developed in body is classified:
Structural plane scale is through knot close or larger than the stratification of bench slope scale, foliation, thousand pieces of reasons, piece reason, tomography
Structure face (usual stratification, foliation, thousand pieces of reasons, piece reason are all greater than bench slope), structural plane scale is significantly less than bench slope rule
The tomography of mould is non-through structural plane, and structural plane scale is small-scale structure face significantly less than the joint of bench slope scale；
Stratification, foliation, thousand pieces of reasons, piece reason and structural plane scale are more than or equal to the tomography of the b multiple of bench slope scale
For through structural plane, the value range of b is 0.85~0.95；Structural plane scale is less than the tomography of the b multiple of bench slope scale
For non-through structural plane, joint is small-scale structure face；B can take 0.95,0.9 or 0.85, be determined according to practical geological condition.
6) according to the determining side slope face tendency of the design state of mine bench slope and inclination angle, with the tendency for running through structural plane
Stereogram is acted as with inclination angle one, carries out the overall stability Latent destruction pattern analysis of rock body quality of mine bench slope；
7) the side slope face tendency determined according to the design state of mine bench slope and inclination angle, with non-through structural plane and small
The tendency in structure of size face and inclination angle one act as stereogram, and the local stability for carrying out rock body quality of mine bench slope is potential broken
The Key Blocks of control rock body quality of mine bench slope local stability are found out in bad pattern analysis；
8) step 6) is repeated with 7), realizes the entirety of rock body quality of mine bench slope to all bench slopes in mine from top to bottom
The hierarchical analysis of the local stability of the hierarchical analysis and rock body quality of mine bench slope of stability.
The scheme of the present embodiment, compared with prior art, mine slope On Engineering Stability Classification of Rock Masses analysis method principle
Simply, easy to operate, it is low in cost, grading evaluation is realized, using effect is good, convenient for according to the classification of structural plane scale and mine
The hierarchical analysis of slope stability realizes the evaluation of mine slope On Engineering Stability Classification of Rock Masses, for accurately calculating for mining design
Necessary condition is created, there are biggish implementary value and economic results in society.
Claims (5)
1. a kind of mine slope On Engineering Stability Classification of Rock Masses analysis method, it is characterised in that: the following steps are included:
1) in open field mine, investigate the rock mass discontinuity developmental state of slope rock mass range, field measurement stratification, foliation,
The occurrence and scale of thousand pieces of reasons, piece reason, tomography and joint, and edited and recorded respectively；
2) the side slope grade and scale determined according to the design state of mine totality side slope, the structural plane that will be developed in slope rock mass
It is classified:
The tomography for a multiple that stratification, foliation, thousand pieces of reasons, piece reason and structural plane scale are more than or equal to overall side slope scale is to pass through
Structural plane is worn, the value range of a is 0.85~0.95；The tomography that structural plane scale is less than a multiple of overall side slope scale is non-
Through structural plane, joint is small-scale structure face；
3) according to the design state of mine totality side slope determine side slope face tendency and inclination angle, with through structural plane tendency and incline
Angle one acts as stereogram, carries out the overall stability Latent destruction pattern analysis of rock body quality of mine totality side slope.
2. mine slope On Engineering Stability Classification of Rock Masses analysis method as described in claim 1, it is characterised in that: the classification
Analysis method is further comprising the steps of:
4) according to the determining side slope face tendency of the design state of mine totality side slope and inclination angle, with non-through structural plane and on a small scale
The tendency of structural plane and inclination angle one act as stereogram, carry out the local stability Latent destruction mould of rock body quality of mine totality side slope
Formula analysis, finds out the Key Blocks of control rock body quality of mine totality side slope local stability.
3. mine slope On Engineering Stability Classification of Rock Masses analysis method as claimed in claim 2, it is characterised in that: the classification
Analysis method is further comprising the steps of:
5) the side slope grade and scale determined according to the design state of mine bench slope, the structural plane that will be developed in slope rock mass
It is classified:
The tomography for the b multiple that stratification, foliation, thousand pieces of reasons, piece reason and structural plane scale are more than or equal to bench slope scale is to pass through
Structural plane is worn, the value range of b is 0.85~0.95；The tomography that structural plane scale is less than the b multiple of bench slope scale is non-
Through structural plane, joint is small-scale structure face；
6) according to the design state of mine bench slope determine side slope face tendency and inclination angle, with through structural plane tendency and incline
Angle one acts as stereogram, carries out the overall stability Latent destruction pattern analysis of rock body quality of mine bench slope.
4. mine slope On Engineering Stability Classification of Rock Masses analysis method as claimed in claim 3, it is characterised in that: the classification
Analysis method is further comprising the steps of:
7) according to the determining side slope face tendency of the design state of mine bench slope and inclination angle, with non-through structural plane and on a small scale
The tendency of structural plane and inclination angle one act as stereogram, carry out the local stability Latent destruction mould of rock body quality of mine bench slope
Formula analysis, finds out the Key Blocks of control rock body quality of mine bench slope local stability.
5. mine slope On Engineering Stability Classification of Rock Masses analysis method as claimed in claim 4, it is characterised in that: the classification
Analysis method is further comprising the steps of:
8) step 6) is repeated with 7), realizes the monolithic stability of rock body quality of mine bench slope to all bench slopes in mine from top to bottom
The hierarchical analysis of the local stability of the hierarchical analysis and rock body quality of mine bench slope of property.
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| CN108416174B (en) * | 2018-04-16 | 2020-08-11 | 浙江大学 | Large-scale surface mine slope design safety factor value taking method |
| CN108776714B (en) * | 2018-04-16 | 2022-04-12 | 浙江大学 | Method for valuing maximum design safety coefficient of side slope of large-scale surface mine |
| CN108830317B (en) * | 2018-06-08 | 2022-04-15 | 宁波大学 | Rapid and fine evaluation method for joint attitude of surface mine slope rock mass based on digital photogrammetry |
| CN108489402B (en) * | 2018-06-08 | 2020-09-15 | 宁波大学 | Rapid and fine dereferencing method for surface mine slope rock mass joint scale based on three-dimensional laser scanning |
| CN108489403B (en) * | 2018-06-08 | 2020-08-07 | 宁波大学 | Rapid and fine evaluation method for joint attitude of surface mine slope rock mass based on three-dimensional laser scanning |
| CN113343343B (en) * | 2021-07-16 | 2024-02-02 | 龙欢 | Rock slope stability evaluation method |
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