CN109187226A - Preboring formula original position rock association formula measuring device and measuring method - Google Patents
Preboring formula original position rock association formula measuring device and measuring method Download PDFInfo
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- CN109187226A CN109187226A CN201811035992.6A CN201811035992A CN109187226A CN 109187226 A CN109187226 A CN 109187226A CN 201811035992 A CN201811035992 A CN 201811035992A CN 109187226 A CN109187226 A CN 109187226A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/24—Investigating strength properties of solid materials by application of mechanical stress by applying steady shearing forces
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/08—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces
- G01N3/10—Investigating strength properties of solid materials by application of mechanical stress by applying steady tensile or compressive forces generated by pneumatic or hydraulic pressure
- G01N3/12—Pressure testing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0016—Tensile or compressive
- G01N2203/0019—Compressive
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/0014—Type of force applied
- G01N2203/0025—Shearing
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N2203/003—Generation of the force
- G01N2203/0042—Pneumatic or hydraulic means
- G01N2203/0048—Hydraulic means
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The present invention provides a kind of preboring formula original position rock association formula measuring device and measuring method, including auxiliary device, shear measuring device, compression measuring device, adapter, the auxiliary device provides power source for shear measuring device and compression measuring device, and handle the measurement data of its acquisition, the shear measuring device is installed on compression measuring device lower end, the adapter is installed on shear measuring device top, is placed in compression measuring device；Thus, the present invention can not only measure the shearing strength and deformation modulus of rock mass simultaneously, the compression strength of rock mass can also be measured, it is loaded additionally by hydraulic cylinder, sufficiently large power can be applied to measuring device, so that measuring device is applicable not only to measure compared with soft formation engineering parameter, be also applied for the measurement of hard rock stratum engineering parameter, for mine working engineering field, a kind of safe and reliable measuring device and measurement method are provided.
Description
Technical field
The present invention relates to the technical field of geotechnical engineering investigation more particularly to a kind of preboring formula mine original position rock association formulas
Measuring device and measuring method.
Background technique
In geotechnical engineering investigation field, rock soil classifiction, deformation modulus and compression strength are evaluation geotechnical structures
The important parameter of stability.Especially in terms of mine working Surrounding Rock Control and improvement, not with mining scale, mining depth
It is disconnected to increase, cause mining condition constantly to deteriorate, the geomechanics environment of mine laneway is increasingly sophisticated, underground engineering disasters frequency
Hair, improving stability of surrounding rocks in roadway control become particularly difficult, therefore, can correctly, reasonably evaluate the steady of mine working country rock
The qualitative generation that can effectively prevent underground engineering disasters.
Currently, measurement rock soil classifiction or deformation modulus can be divided into Experimental Method in Laboratory and in-situ test method.Room
Interior test method mainly has direct shear test, simple shear test, ring shear test, triaxial compression test etc..Although laboratory test can be very
The load of drainage condition, stress and strain is controlled well, but is materialsed and inevitably disturbed during transportation
It influences, and then the physical characteristic parameter of sample is caused to change, so that test measurement result can not accurately characterize ground
Original state index.
In-situ test method mainly has cone penetration test, vane shear test, lateral loading test etc..In-situ test method
Rock soil classifiction or deformation modulus in situ can be directly measured, drill hole sampling is not needed, reduces the disturbance to ground.Separately
Outside, during engineering construction, in-situ test can carry out at any time, real-time monitoring rock soil classifiction or deformation modulus.But
Existing in-situ test method test item is excessively single, can not obtain rock soil classifiction and deformation modulus simultaneously, so that
The original state metrics evaluation of ground is excessively unilateral.If plate loading test is applied in soil body test, by by measurement data band
Enter in empirical equation and calculate, and then obtains the mechanics parameter of the soil body；Vane shear test can only measure soft soil classifiction,
Ground mixing hydrodynamic properties can not be described；Lateral loading test can only measure the curve of pressure Yu rock mass volume change, can not obtain
The shearing strength of rock mass.
For this purpose, designer of the invention, in view of drawbacks described above, by concentrating on studies and designing, synthesis is engaged in for many years for a long time
The experience and achievement of related industry, researching and designing go out a kind of preboring formula original position rock association formula measuring device and measuring method, with
Overcome drawbacks described above.
Summary of the invention
The purpose of the present invention is to provide a kind of preboring formula original position rock association formula measuring device and measuring method, structures
It is small and exquisite, it is easy to operate, it is easy to loading and unloading, working efficiency is greatly improved, is loaded using hydraulic cylinder, measuring device can be applied
Add sufficiently large power, can effectively measure hard formation parameters, the shearing strength of rock mass can be measured by shear measuring device
And deformation modulus, the compression strength of rock mass can be measured by compressing measuring device, is mine working engineering field, provides one
Kind safe and reliable measuring device and measurement method.
To solve the above problems, the invention discloses a kind of preboring formula original position rock association formula measuring device, feature exists
In include auxiliary device, shear measuring device, compression measuring device and adapter, the shear measuring device transfer to bottom hole pair
The deformation modulus and shearing strength of rock mass in situ measure, and the compression measuring device is transferred to bottom hole and resisted to rock mass in situ
Compressive Strength measures, and the auxiliary device provides power source by petroleum pipeline for shear measuring device and compression measuring device,
And be analyzed and processed measurement data acquired in shear measuring device and compression measuring device, one end of the adapter will
Shear measuring device and compression measuring device connect, and other end is connected to the drilling rod on drilling machine.
Wherein: the shear measuring device includes displacement loading device, 6 elastic shear pieces and lower top, 6 elasticity
Shearing loop is cylinder, and the lower top is set to the lower end of cylinder, and the displacement loading device is set in cylinder.
Wherein: once lock ring is arranged the lower part for being installed on 6 elastic shear piece outer rims, and solid with each elastic shear piece lower part
Fixed, holding jacket sets the top for being installed on 6 elastic shear piece outer rims on one, and fixes with each elastic shear piece top, under described
6 elastic shear pieces and lower lock ring are fixed in top cooperation, and 6 elastic shear pieces and upper are fixedly mounted in the displacement loading device cooperation
Lock ring.
Wherein: the displacement loading device include cylinder block end cap, 1 group of reset disc spring, cylinder block, oil cylinder piston,
Intermediate connecting rod, bottom offset disk, 6 bottom offset disk fixed blocks, 6 connecting rods, 6 elastic shear piece fixed blocks, 6 pore water pressures
Sensor, 12 stress strain gauges and 1 displacement sensor, wherein the cylinder block end cap is connect with cylinder block,
The oil cylinder piston is slidably arranged in cylinder block, and 1 group of reset disc spring, which is arranged, is installed on cylinder block to be used for
The upward reset of oil cylinder piston, the both ends of the intermediate connecting rod are respectively connected to oil cylinder piston and bottom offset disk, the adapter
There is one to be connected to the asphalt channel of petroleum pipeline so that a cavity is collectively formed with cylinder block, 6 elastic shear pieces are fixed
Block one end is fixedly installed on the inside of 6 elastic shear pieces, and other end is articulated with the lower part of 6 connecting rods, 6 connecting rods it is upper
Portion is hingedly connected to 6 bottom offset disk fixed blocks, and 6 bottom offsets disk fixed block is installed on the bottom offset disk, and described 6
Pore water pressure sensor is respectively arranged on 6 elastic shear piece fixed blocks in situ for measuring each elastic shear piece incision
Pressure when rock mass, 12 stress strain gauges are respectively arranged in 6 elastic shear pieces to cut for measuring each elasticity
Ess-strain on slice, 1 displacement sensor are installed on the bottom offset disk of displacement loading device to measure each elasticity
Displacement and each elastic shear piece when shearing piece incision rock mass cut displacement to rock mass.
Wherein: 2 shear measuring device sealing rings are arranged respectively is installed on cylinder block end cap and oil cylinder piston to seal
Cavity is respectively equipped with the seal groove of accommodating shear measuring device sealing ring on the cylinder block end cap and oil cylinder piston.
Wherein: the compression measuring device includes upper limit gasket ring, 4 compressions measurement pieces, hollow oil cylinder piston, hollow oil
Cylinder cylinder body, lower limit gasket ring, hollow oil cylinder cylinder end caps and interior connector sleeve, wherein in the upper limit gasket ring is arranged and is installed on
The upper end outer rim of connector sleeve, the hollow oil cylinder piston are connected to the lower end of interior connector sleeve, and 4 compressions measurement piece covers two-by-two
It is installed on outside interior connector sleeve if then one pair of them are arranged, another pair, which is arranged, is installed on hollow oil cylinder cylinder body outer lower end, institute
Hollow oil cylinder piston bush is stated outside adapter, and lower end is protruded into hollow oil cylinder cylinder body, the lower limit gasket ring, which is sheathed on, to be turned
On connector and it is placed in the bottom end of hollow oil cylinder cylinder body.
Wherein: the auxiliary device includes data line, control device, data analysis set-up, oil pump, fuel tank, regulating valve, stream
Meter and petroleum pipeline, described oil pump one end are connect with fuel tank, and other end is connect with adapter, will be in fuel tank by petroleum pipeline
Hydraulic oil output or recycling hydraulic oil to fuel tank, the regulating valve and flowmeter in petroleum pipeline flow velocity and flow adjust
Section, the compression measuring device cut rock mass, and the shear measuring device cuts rock mass, then, the compression measuring device pair
Shear measuring device has pulling force straight up, measures volume of data and is supplied to data analysis set-up to obtain the shearing resistance of rock mass
Intensity, deformation modulus and compression strength.
Also disclose a kind of measurement method of preboring formula original position rock association formula measuring device, it is characterised in that comprising as follows
Method:
Method one: carrying out shearing strength and deformation modulus parameter measurement, firstly, transferring shear measuring device to bottom hole；Its
It is secondary, it is cut into rock mass, then, pulling force is applied to shear measuring device by drilling machine, shearing rock mass post-processing data are come
The shearing strength and deformation modulus of rock mass out；
Method two: carrying out measuring multiple parameters, firstly, shear measuring device and compression measuring device combination are transferred to hole
Bottom；Secondly, hydraulic oil is cut into shear measuring device in rock mass all the way, in addition a road binders to compress measuring device incision
Into rock mass, finally, the data that enter of sensor transmissions are handled by data analysis set-up come obtain shearing strength, deformation modulus with
And multiple rock mass engineering project parameters such as compression strength.
By above structure it is found that preboring formula original position rock association formula measuring device and measuring method of the invention have such as
Lower effect:
The present invention is applicable not only to rock mass engineering project parameter measurement, is also applied for the measurement of soil body engineering parameter；
1, it is loaded using hydraulic cylinder, sufficiently large power can be applied to measuring device, so that measuring device is not only applicable in
It is measured in compared with soft formation engineering parameter, applies also for the measurement of hard rock stratum engineering parameter；
2, easy to operate, widely applicable, shear measuring device can be applied in combination with compression measuring device, can also be independent
Measure rock mass engineering project parameter；
3, shear measuring device can effectively measure the shearing strength and deformation modulus of rock mass in situ, analyzed and filled by data
It sets to obtain the interior friction factor f and cohesive strength c of shear strength of rock；
4, the compression strength q of rock mass in situ can be measured by compressing measuring deviceu。
Detailed content of the invention can be obtained by aftermentioned explanation and institute's attached drawing.
Detailed description of the invention
Fig. 1 shows the structural schematic diagram of preboring formula original position rock association formula measuring device of the invention.
Fig. 2 shows the cross-sectional view of preboring formula original position rock association formula measuring device of the invention；
Fig. 3 shows the cross-sectional view of shear measuring device of the invention；
Fig. 4 A and Fig. 4 B show displacement loading device schematic diagram of the invention；
Fig. 5 shows compression measuring device cross-sectional view of the invention；
Fig. 6 shows workflow schematic diagram of the invention；
Fig. 7 shows shear measuring device operation schematic diagram of the invention.
Appended drawing reference:
1. auxiliary device, 2. shear measuring devices, 3. compression measuring devices, 4. adapters, 5. data lines, 6. control dresses
It sets, 7. data analysis set-ups, 8. oil pumps, 9. fuel tanks, 10. regulating valves, 11. flowmeters, 12. petroleum pipelines, 13. displacement load dresses
It sets, 14. elastic shear pieces, 15. lower tops, 16. lower lock rings, lock ring on 17., 18. cylinder block end caps, 19. shear measuring devices
Sealing ring, 20. cylinder blocks, 21. reset disc spring, 22. intermediate connecting rods, 23. oil cylinder pistons, 24. bottom offset disks, 25. bottom offsets
Disk fixed block, 26. connecting rods, 27. elastic shear piece fixed blocks, 28. pore water pressure sensors, 29. stress strain gauges,
30. displacement sensor, 31. upper limit gasket rings, 32. compression measurement pieces, 33. hollow oil cylinder pistons, 34. hollow oil cylinder end cap seals
Circle, 35. hollow oil cylinder cylinder bodies, 36. hollow oil cylinder piston seals, 37. lower limit gasket rings, 38. hollow oil cylinder cylinder body sealing rings,
39. hollow oil cylinder cylinder end caps, 40. expanded films, connector sleeve in 41..
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention can be easier to by ability
Field technique personnel understand so as to make a clearer definition of the protection scope of the present invention, with reference to the accompanying drawing and have
The present invention is described in detail for body embodiment.Referring to Fig. 1 to Fig. 5, it is shown that preboring formula original position rock association of the invention
Formula measuring device.
Preboring formula original position rock association formula measuring device includes auxiliary device 1, shear measuring device 2, compression measurement
Device 3 and adapter 4, the shear measuring device 2 are transferred to bottom hole and are carried out to the deformation modulus and shearing strength of rock mass in situ
Measurement, the compression measuring device 3 are transferred to bottom hole and are measured to the compression strength of rock mass in situ, and the auxiliary device 1 is logical
Crossing petroleum pipeline 12 is that shear measuring device 2 and compression measuring device 3 provide power source, and by shear measuring device 2 and can compress
Measurement data acquired in measuring device 3 is analyzed and processed, and described 4 one end of adapter can be by shear measuring device 2 and compression
Measuring device 3 connects, and other end is connected to the drilling rod on drilling machine.
As shown in Fig. 2, the shear measuring device 2 is installed on compression 3 lower end of measuring device, the two is both connected to adapter
On 4.
As shown in figure 3, the shear measuring device 2 includes 13,6 elastic shear pieces 14 of displacement loading device and lower top
15, wherein the displacement loading device 13 is connect by screw thread with adapter 4, the top of 6 elastic shear pieces 14, under
Respectively there is a through-hole at portion and medium position, 6 elastic shear pieces 14 can be using ring as cylinder, and the lower top is set to cylinder
Lower end, the displacement loading device are set in cylinder, and once lock ring 16, which is arranged, is installed under 6 14 outer rims of elastic shear piece
Portion, periphery are equipped at intervals with 6 equal-sized through-holes, and solid by bolt and the cooperation of the through-hole of each 14 lower part of elastic shear piece
Fixed each elastic shear piece 14 forms cylindrical shape, and preferably to protect spaced tooth on elastic shear piece 14, the tooth is preferred
For triangular shape, lock ring 17 is arranged the top for being installed on 6 14 outer rims of elastic shear piece on one, and periphery is equipped at intervals with 6 sizes
Equal through-hole, and cylinder is formed by bolt and the fixed each elastic shear piece 14 of the through-hole on each 14 top of elastic shear piece cooperation
Shape, it is described it is lower top 15 periphery be equipped at intervals with 6 threaded holes, with bolt cooperate be fixedly mounted 6 elastic shear pieces 14 and under
Lock ring 16, the periphery of the displacement loading device 12 can also be equipped at intervals with 6 threaded holes, to be fixedly mounted 6 with bolt cooperation
Elastic shear piece 14 and upper lock ring 17, it is by bolt that lower lock ring 16 and upper lock ring 17 and 6 piece elastic shear piece 14 is common as a result,
It is connected on displacement loading device 12 and lower top 15.
As shown in Figure 4 A and 4 B shown in FIG., the displacement loading device 13 includes 18,2 shear measuring devices of cylinder block end cap
24,6 19,1 groups of reset disc springs 21 of sealing ring, cylinder block 20, oil cylinder piston 23, intermediate connecting rod 22, bottom offset disk bottom offsets
26,6, the connecting rod ess-strain of pore water pressure sensor 28,12 of elastic shear piece fixed block 27,6 of disk fixed block 25,6
Sensor 29 and 1 displacement sensor 30, wherein the cylinder block end cap 18 is connect by bolt with cylinder block 20, is covered
If being installed in the cylinder of 6 elastic shear pieces 14 formation, and the outer rim of the cylinder block 20 can be equipped at intervals with 6 screw threads
Hole, to cooperate 6 elastic shear pieces 14 of fixed installation and upper lock ring 17, the oil cylinder piston 23 to be slidably arranged on bolt
In cylinder block 20,2 shear measuring device sealing rings 19 are arranged respectively is installed on cylinder block end cap 18 and oil cylinder work
On plug 23, it is used to seal cavity, wherein accommodating shearing can be respectively equipped on the cylinder block end cap 18 and oil cylinder piston 23 and surveyed
Measure the seal groove of device sealing ring 19, wherein 1 group of reset disc spring 21, which is arranged, is installed on cylinder block 20, the oil cylinder
Body 20 is equipped with against the flange for resetting 21 lower end of disc spring, and the periphery of the oil cylinder piston 23 is equipped with against reset 21 upper end of disc spring
Protrusion, to reset the upward reset that disc spring 21 can be used for oil cylinder piston 23, the lower end of the adapter 4 can pass through screw thread and oil
Cylinder cylinder end caps 18 connect, and the both ends of the intermediate connecting rod 24 can be connected through a screw thread respectively to oil cylinder piston 23 and bottom offset disk
24, so as to which the pressure of oil cylinder piston 23 is transmitted to the bottom offset disk 24 positioned at the lower section of cylinder block 20, the adapter 4 with
Drilling rod connects closed at one end, and the one end connecting with cylinder block end cap 18 has an oil circuit that can be connected to petroleum pipeline 12 to lead to
Road a, so that cavity, 6 elastic shears piece fixed block is collectively formed in the asphalt channel of adapter 4 and cylinder block 20
27 one end can be fixedly installed in respectively 6 elastic shear pieces, 14 inside by bolt, and other end can be respectively articulated with by pin
In the lower part of 6 connecting rods 26, the top of 6 connecting rods 26 can be hingedly connected to 6 bottom offset disk fixed blocks 25 by pin,
6 bottom offset disks fixed block 25 is equipped with upper location hole, and the bottom offset disk 24 is correspondingly provided with lower Positioning holes, when installation under
It is welded after upper location hole positioning on displacement disk fixed block 25,6 pore water pressure sensors 28 are respectively arranged in 6
On piece elastic shear piece fixed block 27, with for measuring pressure when each elastic shear piece 14 cuts rock mass in situ, described 12
Stress strain gauge 29 is respectively arranged in 6 elastic shear pieces 14, and the two sides in each 14 middle position of elastic shear piece are respectively installed
There is a stress strain gauge 29, for measuring the ess-strain on each elastic shear piece 14,1 displacement sensor
30 are installed on the bottom offset disk 24 of displacement loading device 13, for measure displacement when each elastic shear piece 14 cuts rock mass and
Each elastic shear piece 14 cuts displacement to rock mass.
As shown in figure 5, the compression measuring device includes that upper limit gasket ring 31,4 compression measurement pieces 32, hollow oil cylinders are living
Plug 33, hollow oil cylinder end cap seal circle 34, hollow oil cylinder cylinder body 35, hollow oil cylinder piston seal 36, lower limit gasket ring 37, in
Empty cylinder block sealing ring 38,39,2 expanded films 40 of hollow oil cylinder cylinder end caps and interior connector sleeve 41, wherein the upper limit
Gasket ring 31 is arranged the upper end outer rim for being installed on interior connector sleeve 41, can be connect by screw thread with interior connector sleeve 41, the hollow oil cylinder
Piston 33 is connected to the lower end of interior connector sleeve 41, and the upper limit gasket ring 31 is matched with hollow oil cylinder piston 33, surveys to compression
It measures piece 32 and expanded film 40 limits, 4 compressions measurement piece 32 is arranged two-by-two to be installed on outside expanded film 40, then one pair of them
It is arranged and is installed on outside interior connector sleeve 41, another pair, which is arranged, is installed on 35 outer lower end of hollow oil cylinder cylinder body, the hollow oil cylinder
Piston 33 is sheathed on outside adapter 4, and lower end is protruded into hollow oil cylinder cylinder body 35, and the hollow oil cylinder end cap seal circle 34 is installed
In the inside groove of hollow oil cylinder cylinder end caps 39 to provide sealing function, the hollow oil cylinder piston seal 36, which is arranged, to be installed on
The lower end outer rim of empty oil cylinder piston 33, the lower limit gasket ring 37 are sheathed on adapter 4 and are placed in hollow oil cylinder cylinder body 35
Bottom end is matched with 35 bottom end of hollow oil cylinder cylinder body, compresses measurement piece 32 to another pair and expanded film 40 limits, described hollow
Cylinder block sealing ring 38 is arranged between the lower end for being installed on hollow oil cylinder cylinder body 35 and adapter 4, the hollow oil cylinder cylinder body
End cap 39, which is arranged, to be installed on outside hollow oil cylinder piston 33, is connect by bolt with hollow oil cylinder cylinder body 35, oily by input hydraulic pressure,
4 compression measurement pieces 32 are acted on, so that 4 compression measurement pieces 32 are cut into rock mass, the interior connector sleeve 41 passes through screw thread
It is connect with adapter 4.
It is illustrated in figure 6 a kind of workflow schematic diagram of preboring formula original position rock association formula measuring device of the invention,
The auxiliary device includes data line 5, control device 6, data analysis set-up 7, oil pump 8, fuel tank 9, regulating valve 10, flowmeter 11
With petroleum pipeline 12, wherein the states such as the switch of oil pump 8 are adjusted in the control device 6, and described 8 one end of oil pump and fuel tank 9 connect
It connects, other end is connect with adapter 4, exports or recycle hydraulic oil to fuel tank for the hydraulic oil in fuel tank 9 by petroleum pipeline 12
9, the regulating valve 10 and flowmeter 11 in petroleum pipeline 12 flow velocity and flow be adjusted, the compression measuring device 3
Compression measurement piece 32 cuts rock mass, and the elastic shear piece 14 of the shear measuring device 2 cuts rock mass, and then, the compression is surveyed
Amount device 3 has pulling force straight up to shear measuring device 2, and the compression measurement piece 32 compresses rock mass vertically, while described
Elastic shear piece 14 shears rock mass, the pore water pressure sensor 28, stress strain gauge 29, displacement sensor 30 vertically
Volume of data is measured, with shearing strength, deformation modulus and the compression strength for being supplied to data analysis set-up 7 to obtain rock mass.
Invention also provides a kind of measurement methods of preboring formula original position rock association formula measuring device, and it includes as follows
Method:
Method one: carrying out shearing strength and deformation modulus parameter measurement, firstly, decentralization shear measuring device 2 arrives bottom hole；Its
It is secondary, by 8 fuel feeding of oil pump, so that each elastic shear piece 14 is cut into rock mass, then, by drilling machine to shear measuring device 2
Apply pulling force, each elastic shear piece 14 can shear rock mass, finally, handling what sensor transmissions entered by data analysis set-up 7
Data can obtain the shearing strength and deformation modulus of rock mass；
Method two: carrying out measuring multiple parameters, firstly, shear measuring device 2 and the compression combination of measuring device 3 are transferred to hole
Bottom；Secondly, hydraulic oil is cut into each elastic shear piece 14 in rock mass all the way, and in addition a road binders makes by 8 fuel feeding of oil pump
Compression measurement piece 32 is cut into rock mass, and then, oil pump 8 may make compression measurement piece to the cylinder body fuel feeding of compression measuring device 3
32 vertical compression rock mass, in addition compressing measuring device 3 has pulling force to shear measuring device 2, so that each elastic shear piece 14 is cut
Cut rock mass, finally, handle the data that enter of sensor transmissions by data analysis set-up 7, can obtain shearing strength, deformation modulus with
And multiple rock mass engineering project parameters such as compression strength.
Specifically, as shown in fig. 7, hydraulic oil is logical when being measured in method one using decentralization shear measuring device 2
The cavity fuel feeding that petroleum pipeline 12 is formed to adapter 4 and cylinder block 20 is crossed, under oil cylinder piston 23 is pushed by intermediate connecting rod 22
It is displaced disk 24 to move, since the elastic shear piece fixed block 27 and elastic shear piece 14 that connect with bottom offset disk 24 are connected by bolt
It connects, therefore the elastic shear piece 14 on shear measuring device 2 generates certain pressure and deformation to rock mass, then can pass through data
Displacement sensor 30, pore water pressure sensor 28 and the collected signal of stress strain gauge 29 are conveyed into control by line 5
In device 6 processed, control device 6 feeds back signal to oil pump, and then adjustable input pressure, guarantees the tooth on elastic shear piece 14
It is cut into rock mass, by the collected stress-strain data of stress strain gauge 29 installed on elastic shear piece 14, with
And the collected pressure of pore water pressure sensor 28 installed on elastic shear piece fixed block 27, using E=IO(1-μ2)PD/W
(E: Deformation Module of Rock Mass；Io: form factor；μ: Poisson's ratio；D: shearing piece diameter；W: rock mass deformation) it can determine that the deformation of rock mass
In addition modulus uses σ=P/A1(P: act on the normal load on shear surface；A1: effective shear surface area；σ: shearing is acted on
Direct stress on face) it can must act on direct stress on rock mass.
Pulling force is applied to shear measuring device 2 by drilling machine, elastic shear piece 14 has shearing action to rock mass, passes through number
Displacement sensor 30, pore water pressure sensor 28 and stress strain gauge 29 are collected into data according to line 5 and are transferred to data
Interpretation of result is carried out in analytical equipment 7, using τ=q/nA1(n=2,3...) (q: acts on the shear-type load on shear surface；A1:
Effective shear surface area；N: tooth number；τ: the shear stress acted on shear surface) shear stress on rock mass can must be acted on, it draws
Shear stress and normal stress relation curve, and interior friction factor f and cohesive strength c is determined by coulomb-Nai Wei expression formula, by not
That-coulomb strength theory determines the shearing strength of rock mass.
Specifically, being combined shear measuring device 2 and compression measuring device 3 by 4 one end of adapter in method two
Connection, other end connect with the drilling rod on drilling machine, wherein hydraulic oil passes through petroleum pipeline 12 all the way, oil pump 8 is to adapter 4 and oil
Cylinder cylinder body 20 formed cavity fuel feeding, oil cylinder piston 23 by intermediate connecting rod 22 push bottom offset disk 24 move, due to bottom
It moves the elastic shear piece fixed block 27 that disk 24 connects to be bolted with elastic shear piece 14, therefore on shear measuring device 2
Elastic shear piece 14 have certain pressure to rock mass, by data line 5 by displacement sensor 30, pore water pressure sensor 28
It being conveyed into control device 6 with the collected signal of stress strain gauge 29, control device 6 feeds back signal to oil pump 8,
And then adjustable input pressure, guarantee that the tooth on elastic shear piece 14 is cut into rock mass, by installing on elastic shear piece 14
The collected stress-strain data of stress strain gauge 29 and elastic shear piece fixed block 27 on the pore water pressure installed
The collected pressure of force snesor 28, using E=IO(1-μ2) PD/W can determine that the deformation modulus of rock mass, in addition use σ=P/A1
It can must act on the direct stress on rock mass；In addition all the way hydraulic oil by petroleum pipeline 12, oil pump 8 to 40 fuel feeding of expanded film so that
Compression measurement piece 32 is cut into rock mass；Pass through the collected stress of stress strain gauge 29 installed on elastic shear piece 14
The collected pressure of pore water pressure sensor 28 installed on strain data and elastic shear piece fixed block 27, can determine that
In addition the deformation modulus of rock mass uses σ=P/A1It can must act on the direct stress on rock mass.
By 35 fuel feeding of cylinder block to compression measuring device, compression measuring device 3 can compress vertically rock mass,
The elastic shear piece 14 on shear measuring device 2 has shearing action to rock mass simultaneously, by data line 5 by displacement sensor 30,
Pore water pressure sensor 28 and stress strain gauge 29 collect data and are transferred to progress result point in data analysis set-up 7
Analysis, by qu=F/A2(F: act on the pressure on compressing surface；A2: it is effectively compressed area；qu: the compression strength of rock mass) it can obtain
The compression strength of rock mass is obtained, τ=q/nA is in addition used1(n=2,3...) can must act on the shear stress on rock mass, and drafting, which is cut, answers
Power and normal stress relation curve, and interior friction factor f and cohesive strength c is determined by coulomb-Nai Wei expression formula, by More-library
Logical sequence strength theory determines the shearing strength of rock mass.
It can be seen that the present invention has the advantages that
1, it is loaded using hydraulic cylinder, sufficiently large power can be applied to measuring device, so that measuring device is not only applicable in
It is measured in compared with soft formation engineering parameter, applies also for the measurement of hard rock stratum engineering parameter；
2, easy to operate, widely applicable, shear measuring device can be applied in combination with compression measuring device, can also be independent
Measure rock mass engineering project parameter；
3, shear measuring device can effectively measure the shearing strength and deformation modulus of rock mass in situ, analyzed and filled by data
It sets to obtain the interior friction factor f and cohesive strength c of shear strength of rock；
4, the compression strength q of rock mass in situ can be measured by compressing measuring deviceu。
It is readily apparent that above description and record is only illustrated in the disclosure being not intended to be limiting of the invention
Appearance, application or use.Although describing and being described in the accompanying drawings embodiment in embodiment, the present invention is not limited
Be described as by attached drawing example and in embodiment it is now recognized that optimal mode to implement the particular case of the teachings of the present invention
Son, the scope of the present invention will include any embodiment for falling into the description and appended claims of front.
Claims (8)
1. a kind of preboring formula original position rock association formula measuring device, it is characterised in that including auxiliary device, shear measuring device, pressure
Contracting measuring device and adapter, the shear measuring device transfer to bottom hole to the deformation modulus of rock mass in situ and shearing strength into
Row measurement, the compression measuring device are transferred to bottom hole and are measured to the compression strength of rock mass in situ, and the auxiliary device is logical
It crosses petroleum pipeline and provides power source for shear measuring device and compression measuring device, and by shear measuring device and compress measuring device
Acquired measurement data is analyzed and processed, and one end of the adapter connects shear measuring device with compression measuring device
Get up, other end is connected to the drilling rod on drilling machine.
2. preboring formula as described in claim 1 original position rock association formula measuring device, it is characterised in that: the shearing measurement dress
It sets including displacement loading device, 6 elastic shear pieces and lower top, 6 elastic shear loops are cylinder, the lower top setting
In the lower end of cylinder, the displacement loading device is set in cylinder.
3. preboring formula as claimed in claim 2 original position rock association formula measuring device, it is characterised in that: once lock ring is arranged peace
Lower part loaded on 6 elastic shear piece outer rims, and fixed with each elastic shear piece lower part, holding jacket, which is set, on one is installed on 6 bullets
Property shearing piece outer rim top, and fixed with each elastic shear piece top, the lower top cooperation fixes 6 elastic shear pieces under
6 elastic shear pieces and upper lock ring is fixedly mounted in lock ring, the displacement loading device cooperation.
4. preboring formula as claimed in claim 2 or claim 3 original position rock association formula measuring device, it is characterised in that: the displacement adds
It carries and sets including under cylinder block end cap, 1 group of reset disc spring, cylinder block, oil cylinder piston, intermediate connecting rod, bottom offset disk, 6
It is displaced disk fixed block, 6 connecting rods, 6 elastic shear piece fixed blocks, 6 pore water pressure sensors, 12 ess-strain sensings
Device and 1 displacement sensor, wherein the cylinder block end cap is connect with cylinder block, and the oil cylinder piston is slidably set
It is placed in cylinder block, 1 group of reset disc spring, which is arranged, is installed on cylinder block with the upward reset for oil cylinder piston, described
The both ends of intermediate connecting rod are respectively connected to oil cylinder piston and bottom offset disk, and the adapter has an oil circuit for being connected to petroleum pipeline to lead to
A cavity is collectively formed with cylinder block, described 6 elastic shears piece fixed block one end is fixedly installed in 6 elasticity and cuts in road
Slice inside, other end are articulated with the lower part of 6 connecting rods, and it is solid that the top of 6 connecting rods is hingedly connected to 6 bottom offset disks
Determine block, 6 bottom offsets disk fixed block is installed on the bottom offset disk, and 6 pore water pressure sensors are installed respectively
In on 6 elastic shear piece fixed blocks with for measuring pressure when each elastic shear piece cuts rock mass in situ, described 12 are answered
Stress-strain sensor is respectively arranged in 6 elastic shear pieces with the ess-strain for measuring each elastic shear on piece, and described 1
Displacement sensor be installed on the bottom offset disk of displacement loading device with measure displacement when each elastic shear piece incision rock mass and
Each elastic shear piece cuts displacement to rock mass.
5. preboring formula as claimed in claim 4 original position rock association formula measuring device, it is characterised in that: 2 shearing measurement dresses
It sets sealing ring and is arranged respectively and be installed on cylinder block end cap and oil cylinder piston comes seal cavity, the cylinder block end cap and oil cylinder
The seal groove of accommodating shear measuring device sealing ring is respectively equipped on piston.
6. preboring formula as described in claim 1 original position rock association formula measuring device, it is characterised in that: the compression measurement dress
It sets including upper limit gasket ring, 4 compressions measurement pieces, hollow oil cylinder piston, hollow oil cylinder cylinder body, lower limit gasket ring, hollow oil cylinder
Cylinder end caps and interior connector sleeve, wherein the upper limit gasket ring is arranged the upper end outer rim for being installed on interior connector sleeve, the hollow oil
The cylinder piston is connected to the lower end of interior connector sleeve, and 4 compressions measurement piece is arranged two-by-two, then one pair of them are arranged be installed in
Outside connector sleeve, another pair, which is arranged, is installed on hollow oil cylinder cylinder body outer lower end, and the hollow oil cylinder piston bush is set to adapter
Outside, and lower end is protruded into hollow oil cylinder cylinder body, and the lower limit gasket ring is sheathed on adapter and is placed in hollow oil cylinder cylinder body
Bottom end.
7. preboring formula as described in claim 1 original position rock association formula measuring device, it is characterised in that: the auxiliary device packet
Include data line, control device, data analysis set-up, oil pump, fuel tank, regulating valve, flowmeter and petroleum pipeline, described oil pump one end with
Fuel tank connection, other end are connect with adapter, export or recycle hydraulic oil to oil for the hydraulic oil in fuel tank by petroleum pipeline
Case, the regulating valve and flowmeter in petroleum pipeline flow velocity and flow be adjusted, the compression measuring device cuts rock mass,
The shear measuring device cuts rock mass, and then, the compression measuring device has pulling force straight up to shear measuring device,
It measures volume of data and is supplied to data analysis set-up to obtain shearing strength, deformation modulus and the compression strength of rock mass.
8. a kind of measurement method of preboring formula original position rock association formula measuring device, it is characterised in that include following method:
Method one: carrying out shearing strength and deformation modulus parameter measurement, firstly, transferring shear measuring device to bottom hole；Secondly, cutting
Enter into rock mass, then, pulling force is applied to shear measuring device by drilling machine, shearing rock mass post-processes data to obtain rock mass
Shearing strength and deformation modulus；
Method two: carrying out measuring multiple parameters, firstly, shear measuring device and compression measuring device combination are transferred to bottom hole；Its
Secondary, hydraulic oil is cut into shear measuring device in rock mass all the way, and in addition a road binders makes compression measuring device be cut into rock
In body, finally, handling the data that sensor transmissions enter by data analysis set-up to obtain shearing strength, deformation modulus and resist
Multiple rock mass engineering project parameters such as Compressive Strength.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811035992.6A CN109187226B (en) | 2018-09-06 | 2018-09-06 | Pre-drilling type in-situ rock mass combined measuring device and measuring method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811035992.6A CN109187226B (en) | 2018-09-06 | 2018-09-06 | Pre-drilling type in-situ rock mass combined measuring device and measuring method |
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| CN109187226B CN109187226B (en) | 2021-05-28 |
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| CN110031044A (en) * | 2019-05-17 | 2019-07-19 | 中国地震局地壳应力研究所 | A kind of adaptive borehole stress and strain probe of internal pressure |
| CN110455661A (en) * | 2019-08-01 | 2019-11-15 | 天地科技股份有限公司 | A kind of coal rock strength in-situ testing device |
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| CN113566881A (en) * | 2021-07-06 | 2021-10-29 | 中国地质大学（武汉） | Device and method for arranging multiple sensors outside slide body drill hole |
| CN113702211A (en) * | 2021-10-27 | 2021-11-26 | 成都理工大学 | Hole wall lateral expansion rotary shearing device for drilling shearing test and testing method |
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| CN113566881B (en) * | 2021-07-06 | 2022-06-07 | 中国地质大学（武汉） | Device and method for arranging multiple sensors outside slide body drill hole |
| CN113431559A (en) * | 2021-07-22 | 2021-09-24 | 上海勘察设计研究院(集团)有限公司 | Cabled light in-situ test system while drilling and in-situ test construction method |
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