CN105866380A - Specific compound alterated rock/zone comprehensive deformation modulus parameter acquisition method - Google Patents
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Abstract
The invention relates to the fields of rock soil and water-power engineering, and provides a specific compound alterated rock/zone comprehensive deformation modulus parameter acquisition method to solve the problem of no specific compound alterated rock/zone comprehensive deformation modulus parameter acquisition methods at present. The method concretely comprises the following steps: investigating and testing the macroscopic geological characteristics, the internal alterated rock macroscopic mechanical properties and the petrologic characteristics of an alterated rock/zone, and dividing the concrete alterated rock/zone according to the alteration type; carrying out deformation test on all alterated rocks in all the alteration types of areas to obtain the corresponding deformation modulus of every alteration type rock in every divided area; and calculating according to the corresponding deformation modulus of every alteration type rock in every divided area and the area of every alteration type rock area to obtain a compound alterated rock/zone comprehensive deformation modulus parameter. The method is suitable for acquiring the rock comprehensive deformation modulus parameter.
Description
Technical field
The present invention relates to ground and hydroelectric project field, there is the compound of multiple alteration type rock mass particularly to a kind of being applied to
Alterated rocks (carrying) overall deformation modulus parameter value method.
Background technology
Alterated rocks refers to the rock formed because hydrothermal process, Biao Sheng and tectonism etc. cause rock and the secondary change of mineral, erosion
Change part mineralogical composition within rock mass, structure structural type etc. are crossed in accommodation, change primary rock mass physico mechanical characteristic, alteration
Diversity Rock Mass then can be caused uneven, the Geological Defects such as weak band even forming engineering.For a long time, alterated rocks
Research be mainly used in the geology of ore deposits, it is main that by alterated rocks properties study, it is correlated with into the matter of ore deposit mineral, measures, is distributed rule
Rule and Forming Mechanism, and relatively fewer for alterated rocks engineering Geological Characteristics research.
Under certain area geology and environmental condition, part alterated rocks is distributed multiple erosion by the difference of alteration degree, alterated rocks
Becoming type rock mass, different alteration type rock mass physical mechanics differ greatly, and each alteration type rock mass distributional pattern, combining form are multiple
Miscellaneous, regularity is the strongest.
The specific compound alterated rocks (carrying) that the present invention relates to possesses features described above, refers specifically to distribution two kinds in alterated rocks (carrying)
Or two or more alteration rock mass, there is certain mechanics diversity in various alteration type rock mass, in " couple, mix, wrap up " formula
Distribution.For engineering and technical standpoint, it is difficult to by the division of alteration type rock mass more system each in such alterated rocks (carrying)
Carry out sort research for independent engineering geology unit, such alterated rocks need to be thought of as unified geologic body by its distribution characteristics and enter
The suitable engineering geology of row is generally changed, engineering design.Such alterated rocks (carrying) is distributed in the important engineerings such as hydroelectric project high dam foundation
During position, the value of its deformation parameter is one of important engineering geological problems building dam suitability evaluation, according to presently relevant exploration
Method and technical regulation specification carry out deformation parameter test, engineering analogy and then can cause bigger with practical situation deviation.With regard to applicant
Known, there is no at present for such compound alterated rocks (carrying) overall deformation modulus parameter value method.
Differ greatly it is contemplated that propose a kind of multiple alterated rocks mechanics complicated for such alteration type, internal and be distributed shape
Formula low compound alterated rocks (carrying) overall deformation modulus parameter value method mixed and disorderly, regular.
Summary of the invention
The purpose that the present invention solves is to provide for a kind of specific compound alterated rocks overall deformation modulus parameter value method, for this
What the work such as the geologic survey of class alterated rocks and test shot the arrow at the target carries out offer support, is also that the later stage is compound for such simultaneously
Alterated rocks (carrying) Engineering Geology Classification, project treatment design etc. provide strong foundation.
The present invention provides a kind of specific compound alterated rocks/band overall deformation modulus parameter acquiring method, comprises the steps:
A. alterated rocks/band macrogeological features, internal each alteration rock mass macromechanics character, Petrographic Features are carried out investigation with
Test；
B. according to geologic survey and test result, become for the internal alteration rock mass mineral of alterated rocks representative in enumeration district/band
Dividing, form and content, incorporation engineering geology character carries out alteration type engineering geology and divides, and carries out for concrete alterated rocks/band
Different alteration type area divide；
C. according to alteration type geology division results different in alterated rocks/band, alteration rock mass in the range of each alteration type area is entered
Row deformation test is tested, and obtains the dissimilar alteration in each zoning corresponding deformation modulus of rock mass；
D. according to the dissimilar alteration in each zoning corresponding deformation modulus of rock mass, in conjunction with each alteration type rock mass region area,
Calculate and obtain compound alterated rocks overall deformation modulus parameter.
Specifically, step A specifically includes:
A1. alterated rocks/band is carried out matter character investigation on a macro scale, including alterated rocks/band occurrence, scale, extension, the regularity of distribution,
And internal each alteration rock mass color, the regularity of distribution, form, Matter Composition, hammering intensity and hydrophilic；
A2. in choosing enumeration district, all kinds of representative alterated rocks/bands carry out rock abrasive disc and the test of X powder diffraction, find out alterated rocks
Mineral species, composition and content.
Specifically, step B is carried out alteration type engineering geology divide after, if alterated rocks/band meet specific compound alterated rocks/
SNNP, then the compound alterated rocks/band of the granitization met condition-clay lithification carries out alteration type area division, specifically
Condition is:
Two or more alteration type rock mass it is distributed in alterated rocks/band；
Each alteration type rock mass is distributed in " couple, mix, wrap up " formula in alterated rocks/band, and its distributional pattern can not be divided into solely
Vertical engineering geology unit carries out sort research；
In alterated rocks/band there is certain mechanics difference in various alteration type rock mass.
Specifically, described alteration type area includes three classes, and step D specifically includes:
D1. alterated rocks/with each covert modulus averages of alteration type area is calculated as the test standard value of each alteration type rock mass；
D2. obtain each alteration type rock mass region area by geologic survey, calculate each alteration type rock mass outcrop area and total alteration
The ratio that scar is long-pending；
D3. by deformation Equivalent Calculation formula scales compound alterated rocks overall deformation modulus, concrete formula is:
In formula: E represents compound alterated rocks overall deformation modulus, EA、EB、ECRepresent A, B, C alteration type rock mass respectively
Deformation modulus test standard value, α, β, γ represent A, B, C alteration type rock mass area accounting, alpha+beta+γ=1 respectively.
The medicine have the advantages that presently relevant investigation method and technical regulation specification carry out the compound alterated rocks of indication of the present invention
Deformation parameter test, engineering analogy often result in relatively big with practical situation deviation, the present invention propose a kind of for such alterated rocks/
With the obtaining value method of main mechanical index comprehensive deformation modulus parameter, test each alteration rock mass corresponding deformation by alteration Type division
Modulus, on the basis of obtaining each alteration type rock mass content, percentage accounting, by deformation its comprehensive deformation of Equivalent Calculation formula scales
Modulus parameter, provides strong foundation to later stage Engineering Geology Classification, engineering design and improvement.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet of a kind of specific compound alterated rocks/band overall deformation modulus parameter acquiring method of the present invention；
Fig. 2 is specific compound alterated rocks/band alteration type and region division schematic diagram；
Labelling in figure: SA、SB(SB1+SB2)、SC(SC1+SC2) it is that different alteration type rock mass exploration (earth's surface) discloses (exposure)
Site area.
Detailed description of the invention
Below in conjunction with accompanying drawing, technical scheme is described in further detail.
The present invention is directed to there is no at present for being distributed two or more alteration rock mass, various alteration types in alterated rocks (carrying)
There is certain mechanics diversity in rock mass, in compound alterated rocks (carrying) comprehensive deformation of " couple, mix, wrap up " formula distribution
The problem of the method for modulus parameter value, it is provided that a kind of specific compound alterated rocks overall deformation modulus parameter value method, such as figure
Shown in 1, the method concretely comprises the following steps: first, to alterated rocks/band macrogeological features, internal each alteration rock mass macromechanics
Shape, Petrographic Features are investigated and are tested；Secondly, according to geologic survey and test result, for representative in enumeration district
The internal alteration rock mass mineralogical composition of alterated rocks/band, composition and content, incorporation engineering geology character carries out alteration type engineering geology
Divide, carry out different alteration type area for concrete alterated rocks/band and divide；Then, according to alterations different in alterated rocks/band
Type geology division result, carries out deformation test test to alteration rock mass in the range of each alteration type area, obtains each zoning not
With the type corresponding deformation modulus of alterated rocks body；Finally, according to the dissimilar alteration in each zoning corresponding deformation modulus of rock mass,
In conjunction with each alteration type rock mass region area, calculate and obtain compound alterated rocks overall deformation modulus parameter.
The specific compound alterated rocks of the present invention/band overall deformation modulus parameter value method, comprises the steps:
(1) geologic survey and test: conduct a geological survey and test, find out alterated rocks (carrying) macroscopic view geology character in enumeration district,
Alteration rock mass mineral composition, feature and mechanics diversity thereof, specifically comprise the following steps:
A. exploration is disclosed or earth's surface exposure (footrill, boring etc.) alterated rocks (carrying) carries out macroscopic view geology character investigation, including
Alterated rocks (carrying) occurrence, scale, extension, the regularity of distribution and internal each alteration rock mass color, the regularity of distribution and form, thing
Matter composition, hammering intensity, hydrophilic etc.；
B. in choosing enumeration district, all kinds of representative alterated rocks (carrying) carry out rock abrasive disc, alterated rocks is found out in the test of X powder diffraction
Mineral species, composition and content；
(2) alteration type engineering geology divides: according to geologic survey and test result, for each erosion representative in enumeration district
Become rock mass mineralogical composition, composition and content, carry out comprehensive geological analysis, classification in conjunction with geology character, and then implement alteration type
Engineering geology divides, and in confirming enumeration district according to alteration type engineering geology division result, whether alterated rocks (carrying) meets the present invention
Indication specific compound alterated rocks (carrying) condition, actual conditions is:
A. two or more alteration type rock mass it is distributed in alterated rocks (carrying)；
B. in alterated rocks (carrying), each alteration type rock mass is in the distribution of " couple, mix, wrap up " formula, and its distributional pattern can not be drawn
It is divided into independent engineering geology unit to carry out sort research；
C. in alterated rocks (carrying) there is certain mechanics difference in various alteration type rock mass；
If possessing, the granitization specifically the met condition-compound alterated rocks of clay lithification (carrying) carries out alteration type area
Dividing, alteration rock body types A shown in accompanying drawing 1 is divided into region A, alteration rock mass type B is divided into region B (area SB=SB1+SB2)、
Alteration rock mass Type C rock mass is divided into region C, area SC=SC1+SC2；
(3) each alteration type Deformation Module of Rock Mass parameter testing: divide knot according to alteration type geology different in alterated rocks (carrying)
Really, alteration rock mass in the range of each alteration type area is carried out deformation test test, obtain the dissimilar alteration in each zoning rock mass
Corresponding deformation modulus；
(4) compound alterated rocks overall deformation modulus value, concretely comprises the following steps:
A. alterated rocks (carrying) each alteration covert modulus averages of type area test standard value as each alteration type rock mass is calculated；
B. obtain each alteration type rock mass region area by geologic survey, calculate each alteration type rock mass area accounting (the most each erosion
Become type rock mass outcrop area/total alterated rocks area)；
C. by deformation Equivalent Calculation formula scales compound alterated rocks overall deformation modulus, concrete formula is:
In formula: E represents compound alterated rocks overall deformation modulus, EA、EB、ECRepresent A, B, C alteration type rock mass respectively
Deformation modulus test standard value, α, β, γ represent A, B, C alteration type rock mass area accounting, alpha+beta+γ=1 respectively.
Claims (4)
1. specific compound alterated rocks/band overall deformation modulus parameter acquiring method, it is characterised in that comprise the steps:
A. alterated rocks/band macrogeological features, internal each alteration rock mass macromechanics character, Petrographic Features are carried out investigation with
Test；
B. according to geologic survey and test result, become for the internal alteration rock mass mineral of alterated rocks representative in enumeration district/band
Dividing, form and content, incorporation engineering geology character carries out alteration type engineering geology and divides, and carries out for concrete alterated rocks/band
Different alteration type area divide；
C. according to alteration type geology division results different in alterated rocks/band, alteration rock mass in the range of each alteration type area is entered
Row deformation test is tested, and obtains the dissimilar alteration in each zoning corresponding deformation modulus of rock mass；
D. according to the dissimilar alteration in each zoning corresponding deformation modulus of rock mass, in conjunction with each alteration type rock mass region area,
Calculate and obtain compound alterated rocks overall deformation modulus parameter.
2. a kind of specific compound alterated rocks/band overall deformation modulus parameter acquiring method as claimed in claim 1, its feature
Being, step A specifically includes:
A1. alterated rocks/band is carried out matter character investigation on a macro scale, including alterated rocks/band occurrence, scale, extension, the regularity of distribution,
And internal each alteration rock mass color, the regularity of distribution, form, Matter Composition, hammering intensity and hydrophilic；
A2. in choosing enumeration district, all kinds of representative alterated rocks/bands carry out rock abrasive disc and the test of X powder diffraction, find out alterated rocks
Mineral species, composition and content.
3. a kind of specific compound alterated rocks/band overall deformation modulus parameter acquiring method as claimed in claim 1, its feature
It is, after step B carries out the division of alteration type engineering geology, if alterated rocks/band meets specific compound alterated rocks/SNNP,
The granitization then the met condition-compound alterated rocks of clay lithification (carrying) carries out alteration type area division, and actual conditions is:
Two or more alteration type rock mass it is distributed in alterated rocks/band；
Each alteration type rock mass is distributed in " couple, mix, wrap up " formula in alterated rocks/band, and its distributional pattern can not be divided into solely
Vertical engineering geology unit carries out sort research；
In alterated rocks/band there is certain mechanics difference in various alteration type rock mass.
4. a kind of specific compound alterated rocks/band overall deformation modulus parameter acquiring method as claimed in claim 1, its feature
Being, described alteration type area includes three classes, and step D specifically includes:
D1. alterated rocks/with each covert modulus averages of alteration type area is calculated as the test standard value of each alteration type rock mass；
D2. obtain each alteration type rock mass region area by geologic survey, calculate each alteration type rock mass outcrop area and total alteration
The ratio that scar is long-pending；
D3. by deformation Equivalent Calculation formula scales compound alterated rocks overall deformation modulus, concrete formula is:
In formula: E represents compound alterated rocks overall deformation modulus, EA、EB、ECRepresent A, B, C alteration type rock mass respectively
Deformation modulus test standard value, α, β, γ represent A, B, C alteration type rock mass area accounting, alpha+beta+γ=1 respectively.
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| CN106370812A (en) * | 2016-08-19 | 2017-02-01 | 华北水利水电大学 | Rock alteration zoning comprehensive quantitative discrimination method |
| CN106769501A (en) * | 2016-11-29 | 2017-05-31 | 中国电建集团华东勘测设计研究院有限公司 | A kind of measuring method of the Deformation Module of Rock Mass of different depth |
| CN107144567A (en) * | 2017-06-21 | 2017-09-08 | 华北水利水电大学 | A kind of geochemical discrimination method of granite Alteration Zoning |
| CN107328910A (en) * | 2017-06-26 | 2017-11-07 | 中国电建集团成都勘测设计研究院有限公司 | A kind of half diagenesis sand, great soil group stratum overall deformation modulus parameter acquiring method |
| CN108426778A (en) * | 2018-03-07 | 2018-08-21 | 华北水利水电大学 | A method of rock alteration extent is differentiated based on strength retrogression |
| CN109001422A (en) * | 2018-06-20 | 2018-12-14 | 华北水利水电大学 | A kind of geochemical discrimination method of granite choritization alteration extent |
| CN113866389A (en) * | 2021-09-27 | 2021-12-31 | 中国电建集团成都勘测设计研究院有限公司 | Method for generating mineral crystal model containing bedding rock |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106370812A (en) * | 2016-08-19 | 2017-02-01 | 华北水利水电大学 | Rock alteration zoning comprehensive quantitative discrimination method |
| CN106769501A (en) * | 2016-11-29 | 2017-05-31 | 中国电建集团华东勘测设计研究院有限公司 | A kind of measuring method of the Deformation Module of Rock Mass of different depth |
| CN107144567A (en) * | 2017-06-21 | 2017-09-08 | 华北水利水电大学 | A kind of geochemical discrimination method of granite Alteration Zoning |
| CN107328910A (en) * | 2017-06-26 | 2017-11-07 | 中国电建集团成都勘测设计研究院有限公司 | A kind of half diagenesis sand, great soil group stratum overall deformation modulus parameter acquiring method |
| CN108426778A (en) * | 2018-03-07 | 2018-08-21 | 华北水利水电大学 | A method of rock alteration extent is differentiated based on strength retrogression |
| CN109001422A (en) * | 2018-06-20 | 2018-12-14 | 华北水利水电大学 | A kind of geochemical discrimination method of granite choritization alteration extent |
| CN109001422B (en) * | 2018-06-20 | 2019-10-01 | 华北水利水电大学 | A kind of geochemical discrimination method of granite choritization alteration extent |
| CN113866389A (en) * | 2021-09-27 | 2021-12-31 | 中国电建集团成都勘测设计研究院有限公司 | Method for generating mineral crystal model containing bedding rock |
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