CN109057784A - The method of rock mass regular tenacity parameter is quickly determined using Rock Cutting intensity - Google Patents
The method of rock mass regular tenacity parameter is quickly determined using Rock Cutting intensity Download PDFInfo
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- CN109057784A CN109057784A CN201810805370.0A CN201810805370A CN109057784A CN 109057784 A CN109057784 A CN 109057784A CN 201810805370 A CN201810805370 A CN 201810805370A CN 109057784 A CN109057784 A CN 109057784A
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- 239000011435 rock Substances 0.000 title claims abstract description 96
- 238000000034 method Methods 0.000 title claims abstract description 39
- 230000006835 compression Effects 0.000 claims abstract description 9
- 238000007906 compression Methods 0.000 claims abstract description 9
- 238000005553 drilling Methods 0.000 claims description 29
- 238000004364 calculation method Methods 0.000 claims description 16
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 239000002689 soil Substances 0.000 abstract description 8
- 238000005070 sampling Methods 0.000 abstract description 3
- 241001074085 Scophthalmus aquosus Species 0.000 abstract description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/003—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells by analysing drilling variables or conditions
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B49/00—Testing the nature of borehole walls; Formation testing; Methods or apparatus for obtaining samples of soil or well fluids, specially adapted to earth drilling or wells
- E21B49/005—Testing the nature of borehole walls or the formation by using drilling mud or cutting data
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- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
The method disclosed by the invention that rock mass regular tenacity parameter is quickly determined using Rock Cutting intensity, the method that the present invention quickly determines rock mass regular tenacity parameter using Rock Cutting intensity identify Rock Cutting intensity with brill to realize by the method for field test.Pass through the relationship between Rock Cutting intensity and rock basic mechanical parameter, calculate the mechanics parameter of rock, such as compression strength, elasticity modulus, internal friction angle and cohesive strength, method of the invention, directly calculated using compression strength, elasticity modulus, internal friction angle and the cohesive strength that rotation touch investigating test acquired results carry out rock, this method only needs to manually compute, and calculating process is simple, the influence that the disturbance of foundation soil body and test result can be not allowed to avoid traditional drill sampling and laboratory soil test.
Description
Technical field
The invention belongs to Geotechnical Engineering fields, and in particular to quickly determine that rock mass is commonly strong using Rock Cutting intensity
Spend the method for parameter.
Background technique
How various rock mass engineering projects such as slope project, cavity engineering in foundation engineering, rapidly and accurately obtain rock mass mechanics
Parameter is basis and the guarantee of the above various engineering designs, construction and Scheme of Strengthening.
The measuring method of Mechanics Parameters of Rock Mass generallys use the large-scale field test of indoor sillar specimen test and scene.It is indoor
Sillar specimen test has the advantages that be easily obtained test result, but unfavorable disturbance factor causes the reality with Test in Situ
Situation has differences；Disturbed for field test technology on site it is less, closer to rock mass on-site actual situations, but engineering
It measures great, and is limited by various factors and restricts.Since indoor specimen test disturbs larger, field test test restriction
It is more, expensive, time-consuming and laborious, seek the improved method or new technology that obtain Mechanics Parameters of Rock Mass, abandon drawback, realizes real
Engineering site Mechanics Parameters of Rock Mass quickly test and be just particularly important.
Summary of the invention
The object of the present invention is to provide using Rock Cutting intensity quickly determine rock mass regular tenacity parameter method, to
Quick obtaining rock mass regular tenacity parameter.
The technical scheme adopted by the invention is that quickly determining the side of rock mass regular tenacity parameter using Rock Cutting intensity
Method is specifically implemented in accordance with the following steps:
Step 1 carries out the test of place rotation touch investigating to rock, obtains rotation touch investigating data；
Step 2, the data obtained to step 1 are handled, and obtain the average value of the rotation touch investigating drilling parameter on each stratum,
The average value of average value and drilling pressure including rotation torque；
Step 3, the cutting hardness that each stratum in rock is calculated using the drilling parameter that step 2 obtains；
The cutting hardness on each stratum calculates the pressure resistance on each stratum in rock in step 4, the rock obtained using step 3
Degree, elasticity modulus, internal friction angle and cohesive strength.
The features of the present invention also characterized in that
In step 1, the place rotation touch investigating test includes in test rotation touch investigating drill bit at the uniform velocity injection stratum with depth
Pressure, that is, drilling pressure of consecutive variations, unit MPa；Rotation torque, unit MNm；And it records in drill bit drilling process
Cut contact area, unit m2, rotation touch investigating drill bit bottom surface radius, unit m.
Detailed process is as follows for step 2:
The rotation touch investigating measured data obtained according to step 1 draws the rotation touch investigating drilling pressure changed with depth of stratum
Determine formation lithology title with the test curve of rotation torque, calculate each stratum and according to test curve Form division stratum
The average value of rotation touch investigating drilling parameter, comprising: each stratum rotation touch investigating drilling pressure average value, unit MPa；Each stratum rotation
Turn feeler inspection drill bit rotation torque average value, unit MNm.
In step 3, the calculation method of the cutting hardness on each stratum are as follows:
In formula (1), S is to cut contact area in drill bit drilling process, and P is drilling pressure, and M is rotation torque, R is drill bit
Bottom surface radius, RMFor cutting hardness；When drill edge is crept into completely, think for cornual plate drill bit and spiral bit
S is the lateral area of circular cone, for cornual plate drill bit S=2000.95mm2；For spiral bit S=1193.29mm2；For core drill
Head thinks that S is the area of annulus, S=30.35mm2。
In step 4, the compression strength on each stratum in rock, elasticity modulus, internal friction angle and cohesive strength calculation method such as
Under:
The calculation method of compressive strength of rock σ:
In formula (2), when using cornual plate bit cutting rock, a1=0.21, b1=1.04；Using spiral bit rock cutting
When, a1=0.43, b1=0.05；When using hollow boring bit rock cutting, a1=4.4, b1=-6.1.
The calculation method of elastic modulus of rock E:
In formula (3), when using cornual plate bit cutting rock, a2=2.92, b2=1.04；Using spiral bit rock cutting
When, a2=5.86, b2=0.06；When using hollow boring bit rock cutting, a2=59.57, b2=-6.02.
Internal friction angle of rockCalculation method:
In formula (4), when using cornual plate bit cutting rock, a3=0.01, b3=1.40；Using spiral bit rock cutting
When, a3=0.03, b3=0.71；When using hollow boring bit rock cutting, a3=0.29, b3=1.57.
The calculation method of rock cohesion c:
In formula (5), when using cornual plate bit cutting rock, a4=0.16, b4=1.44；Using spiral bit rock cutting
When, a4=0.32, b4=0.84；When using hollow boring bit rock cutting, a4=3.13, b4=2.28.
The beneficial effects of the present invention are:
The method that rock mass regular tenacity parameter is quickly determined using Rock Cutting intensity of the invention, directly application rotation touching
Compression strength, elasticity modulus, internal friction angle and the cohesive strength that detection examination acquired results carry out rock calculate, and this method only needs craft
It calculates, calculating process is simple, and when not using experiential modification coefficient, computational accuracy still with higher can be applied to soil
Wood engineering field Rock Cutting Strength co-mputation is only needed calculating the parameter in basic cutting hardness from live rotation touch investigating examination
It tests, it, can be inaccurate to the disturbance of foundation soil body and test result to avoid traditional drill sampling and laboratory soil test without probing
Influence, simplify prospecting program, save prospecting cost, have a extensive future.
Detailed description of the invention
Fig. 1 is the flow chart for the method that the present invention quickly determines rock mass regular tenacity parameter using Rock Cutting intensity；
Fig. 2 is the relational graph between Elastic Modulus and cutting hardness of the present invention；
Fig. 3 is the relational graph in the present invention between compression strength and cutting hardness；
Fig. 4 is the relational graph in the present invention between cohesive strength and cutting hardness；
Fig. 5 is the relational graph in the present invention between internal friction angle and cutting hardness.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The method that the present invention quickly determines rock mass regular tenacity parameter using Rock Cutting intensity, passes through the side of field test
Method identifies Rock Cutting intensity with brill to realize.Pass through the relationship between Rock Cutting intensity and rock basic mechanical parameter, meter
The mechanics parameter for calculating rock, such as compression strength, elasticity modulus, internal friction angle and cohesive strength, as shown in Figure 1, specifically according to as follows
Step is implemented:
Step 1 carries out the test of place rotation touch investigating to rock, obtains rotation touch investigating data:
With geotechnical engineering place rotation touch investigating vehicle, carry out rotation touch investigating field test, place rotation touching at pile foundation
Detection examination includes pressure, that is, drilling pressure in test rotation touch investigating drill bit at the uniform velocity injection stratum with depth consecutive variations, and unit is
MPa；Rotation torque, unit MNm, and record cutting contact area S, unit m in drill bit drilling process2；It is cut in drill bit
It cuts in the case of sword creeps into completely, thinks that S is the lateral area of circular cone for cornual plate drill bit and spiral bit, for cornual plate drill bit S=
2000.95mm2；For spiral bit S=1193.29mm2；S, which is the area of annulus, S=, to be thought for hollow boring bit
30.35mm2；Rotation touch investigating drill bit bottom surface radius, unit m.
Step 2, the data obtained to step 1 are handled, and obtain the average value of the rotation touch investigating drilling parameter on each stratum,
The average value of average value and drilling pressure including rotation torque；
The rotation touch investigating measured data obtained according to step 1 draws the rotation touch investigating drilling pressure changed with depth of stratum
Determine formation lithology title with the test curve of rotation torque, calculate each stratum and according to test curve Form division stratum
The average value of rotation touch investigating drilling parameter, comprising: each stratum rotation touch investigating drilling pressure average value, unit MPa；Each stratum rotation
Turn feeler inspection drill bit rotation torque average value, unit MNm.
Step 3, the cutting hardness that each stratum in rock is calculated using the parameter that step 2 obtains:
In formula (1), S is to cut contact area in drill bit drilling process, and P is drilling pressure, and M is rotation torque, and R is drill bit
Bottom surface radius, RMFor cutting hardness.When drill edge is crept into completely, think for cornual plate drill bit and spiral bit
S is the lateral area of circular cone, for cornual plate drill bit S=2000.95mm2；For spiral bit S=1193.29mm2；For core drill
Head thinks that S is the area of annulus, S=30.35mm2。
The cutting hardness on each stratum calculates the pressure resistance on each stratum in rock in step 4, the rock obtained using step 3
Degree, elasticity modulus, internal friction angle and cohesive strength, Fig. 2~Fig. 5 are respectively elasticity modulus, compression strength, cohesive strength and internal friction angle
Relational graph between cutting hardness；
Wherein, the calculation method of compressive strength of rock σ:
In formula (2), when using cornual plate bit cutting rock, a1=0.21, b1=1.04；Using spiral bit rock cutting
When, a1=0.43, b1=0.05；When using hollow boring bit rock cutting, a1=4.4, b1=-6.1.
The calculation method of elastic modulus of rock E:
In formula (3), when using cornual plate bit cutting rock, a2=2.92, b2=1.04；Using spiral bit rock cutting
When, a2=5.86, b2=0.06；When using hollow boring bit rock cutting, a2=59.57, b2=-6.02.
Internal friction angle of rockCalculation method:
In formula (4), when using cornual plate bit cutting rock, a3=0.01, b3=1.40；Using spiral bit rock cutting
When, a3=0.03, b3=0.71；When using hollow boring bit rock cutting, a3=0.29, b3=1.57.
The calculation method of rock cohesion c:
In formula (5), when using cornual plate bit cutting rock, a4=0.16, b4=1.44；Using spiral bit rock cutting
When, a4=0.32, b4=0.84；When using hollow boring bit rock cutting, a4=3.13, b4=2.28.
The present invention directly applies rotation touch investigating test acquired results to carry out Rock Cutting Strength co-mputation, and this method only needs craft
It calculates, calculating process is simple, and when not using experiential modification coefficient, computational accuracy still with higher can be applied to soil
Wood engineering field Rock Cutting Strength co-mputation.Basic cutting hardness is carried out using the method for the present invention, calculating parameter is only needed from existing
The test of rotation touch investigating can disturbance and survey to avoid traditional drill sampling, laboratory soil test to foundation soil body without probing
The inaccurate influence of test result simplifies prospecting program, saves prospecting cost, has a extensive future.
The mechanics parameter for the rock that method of the invention obtains is compared with actual measured results, such as table 1.
The comparison of result and actual result that table 1 is obtained using method of the invention
It can see that the mechanics parameter for the rock that method of the invention is calculated is basic and actual result is close from table 1,
For global error less than 5%, this is able to satisfy engine request completely, therefore, illustrates the rock regular tenacity that method of the invention measures
Parameter the result is that reliable.
Claims (5)
1. quickly determining the method for rock mass regular tenacity parameter using Rock Cutting intensity, which is characterized in that specifically according to as follows
Step is implemented:
Step 1 carries out the test of place rotation touch investigating to rock, obtains rotation touch investigating data；
Step 2, the data obtained to step 1 are handled, and obtain the average value of the rotation touch investigating drilling parameter on each stratum, including
The average value of rotation torque and the average value of drilling pressure；
Step 3, the cutting hardness that each stratum in rock is calculated using the drilling parameter that step 2 obtains；
The cutting hardness on each stratum calculates the compression strength on each stratum, bullet in rock in step 4, the rock obtained using step 3
Property modulus, internal friction angle and cohesive strength.
2. the method for quickly determining rock mass regular tenacity parameter using Rock Cutting intensity as described in claim 1, feature
It is, in step 1, the place rotation touch investigating test includes continuous with depth in test rotation touch investigating drill bit at the uniform velocity injection stratum
Pressure, that is, drilling pressure of variation, unit MPa；Rotation torque, unit MNm；And it records and is cut in drill bit drilling process
Contact area, unit m2；Rotation touch investigating drill bit bottom surface radius, unit m.
3. the method for quickly determining rock mass regular tenacity parameter using Rock Cutting intensity as described in claim 1, feature
It is, detailed process is as follows for step 2:
The rotation touch investigating measured data obtained according to step 1 draws the rotation touch investigating drilling pressure changed with depth of stratum and rotation
The test curve of torque, and according to test curve Form division stratum, determine formation lithology title, calculates each stratum rotation
The average value of feeler inspection drilling parameter, comprising: each stratum rotation touch investigating drilling pressure average value, unit MPa；Each stratum rotation touching
Prospecting bit head rotation torque average value, unit MNm.
4. the method for quickly determining rock mass regular tenacity parameter using Rock Cutting intensity as described in claim 1, feature
It is, in step 3, the calculation method of the cutting hardness on each stratum are as follows:
In formula (1), S is that contact area is cut in drill bit drilling process, and P is drilling pressure, and M is rotation torque, and R is the bottom of drill bit
Radius surface, RMFor cutting hardness；When drill edge is crept into completely, think that S is for cornual plate drill bit and spiral bit
The lateral area of circular cone, for cornual plate drill bit S=2000.95mm2；For spiral bit S=1193.29mm2；For hollow boring bit
Think that S is the area of annulus, S=30.35mm2。
5. the method for quickly determining rock mass regular tenacity parameter using Rock Cutting intensity as described in claim 1, feature
It is, in step 4, the compression strength on each stratum in rock, elasticity modulus, the calculation method of internal friction angle and cohesive strength are as follows:
The calculation method of compressive strength of rock σ:
In formula (2), when using cornual plate bit cutting rock, a1=0.21, b1=1.04；When using spiral bit rock cutting, a1
=0.43, b1=0.05；When using hollow boring bit rock cutting, a1=4.4, b1=-6.1.
The calculation method of elastic modulus of rock E:
In formula (3), when using cornual plate bit cutting rock, a2=2.92, b2=1.04；When using spiral bit rock cutting, a2
=5.86, b2=0.06；When using hollow boring bit rock cutting, a2=59.57, b2=-6.02.
Internal friction angle of rockCalculation method:
In formula (4), when using cornual plate bit cutting rock, a3=0.01, b3=1.40；When using spiral bit rock cutting, a3
=0.03, b3=0.71；When using hollow boring bit rock cutting, a3=0.29, b3=1.57.
The calculation method of rock cohesion c:
In formula (5), when using cornual plate bit cutting rock, a4=0.16, b4=1.44；When using spiral bit rock cutting, a4
=0.32, b4=0.84；When using hollow boring bit rock cutting, a4=3.13, b4=2.28.
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Cited By (7)
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| CN109989740A (en) * | 2019-04-10 | 2019-07-09 | 中煤科工集团西安研究院有限公司 | Coal measure strata drilling intelligent identifying system and its method based on Multi-source Information Fusion |
| CN111209684A (en) * | 2020-01-15 | 2020-05-29 | 西安理工大学 | Rock strength parameter advanced prediction method based on while-drilling monitoring technology |
| CN111398273A (en) * | 2019-10-09 | 2020-07-10 | 天津大学 | Rock geometric-mechanical parameter acquisition method and holographic scanning system |
| CN111766170A (en) * | 2020-07-03 | 2020-10-13 | 西南石油大学 | Test method and test device for rock breaking by coupling laser |
| CN114630950A (en) * | 2019-09-04 | 2022-06-14 | 艾尼股份公司 | Downhole rock mechanics property tool, assembly and method |
| CN115855795A (en) * | 2023-01-31 | 2023-03-28 | 中国科学院力学研究所 | Lunar soil in-situ mechanical testing method and load testing equipment |
| CN116752968A (en) * | 2023-06-07 | 2023-09-15 | 陕煤集团神木红柳林矿业有限公司 | While-drilling device for measuring basic elastic mechanical parameters of coal rock and use method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109989740A (en) * | 2019-04-10 | 2019-07-09 | 中煤科工集团西安研究院有限公司 | Coal measure strata drilling intelligent identifying system and its method based on Multi-source Information Fusion |
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| CN114630950B (en) * | 2019-09-04 | 2024-05-24 | 艾尼股份公司 | Downhole rock mechanical property tools, assemblies, and methods |
| CN111398273A (en) * | 2019-10-09 | 2020-07-10 | 天津大学 | Rock geometric-mechanical parameter acquisition method and holographic scanning system |
| CN111209684A (en) * | 2020-01-15 | 2020-05-29 | 西安理工大学 | Rock strength parameter advanced prediction method based on while-drilling monitoring technology |
| CN111209684B (en) * | 2020-01-15 | 2024-03-22 | 西安理工大学 | Advanced forecasting method for rock strength parameters based on while-drilling monitoring technology |
| CN111766170A (en) * | 2020-07-03 | 2020-10-13 | 西南石油大学 | Test method and test device for rock breaking by coupling laser |
| CN115855795A (en) * | 2023-01-31 | 2023-03-28 | 中国科学院力学研究所 | Lunar soil in-situ mechanical testing method and load testing equipment |
| CN115855795B (en) * | 2023-01-31 | 2024-06-11 | 中国科学院力学研究所 | Lunar soil in-situ mechanical testing method and load testing equipment |
| CN116752968A (en) * | 2023-06-07 | 2023-09-15 | 陕煤集团神木红柳林矿业有限公司 | While-drilling device for measuring basic elastic mechanical parameters of coal rock and use method thereof |
| CN116752968B (en) * | 2023-06-07 | 2024-05-17 | 陕煤集团神木红柳林矿业有限公司 | While-drilling device for measuring basic elastic mechanical parameters of coal rock and use method thereof |
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