CN207366116U - A kind of recyclable geostress survey device - Google Patents
A kind of recyclable geostress survey device Download PDFInfo
- Publication number
- CN207366116U CN207366116U CN201721344836.9U CN201721344836U CN207366116U CN 207366116 U CN207366116 U CN 207366116U CN 201721344836 U CN201721344836 U CN 201721344836U CN 207366116 U CN207366116 U CN 207366116U
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- China
- Prior art keywords
- test chamber
- matrix steel
- tube
- injection pipe
- compensated cavity
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Abstract
A kind of recyclable geostress survey device,Including guide rod,Joint protective sleeve,Matrix steel tube,Compensated cavity,Test chamber,Circular metal gasket,Guide head,Elastic membrane,Strain rosette,Liquid injection pipe,Air injection pipe,Metal fixing sleeve,Reading conducting wire,Quick coupling,Clamp nut,Liquid pressing device,Gas pressurized device,Differential pressure control valve,Data acquisition device,Three-way control valve,Fluid injection hose,Gas injection hose,Compensated cavity polyurethane tube and test chamber polyurethane tube,After device is sent into core drilling specified location by guide rod during use,Pressurizeed respectively by gas pressurized device by air injection pipe to compensated cavity and liquid pressing device by liquid injection pipe into test chamber,It is consistent again by three-way control valve and the pressure of differential pressure control valve compensated cavity polyurethane tube and test chamber polyurethane tube,Ensure to produce a real cylindric deformation along test chamber,So that elastic membrane is adjacent on hole wall completely,Release the stress of core,The deflection of core is gathered by strain rosette and data acquisition device,And then obtain the crustal stress of rock mass before stress relieving,By taking out the also recyclable present apparatus of core,It can be achieved repeatedly to utilize by replacing elastic membrane.Since the present apparatus can ensure that elastic membrane is fitted on hole wall completely, the coupling mass of strain rosette and palisades ensure that, using stress relief by overcoring principle, can accurately obtain the crustal stress of rock mass.The present apparatus is easy to operate, tries to achieve data accuracy height and repeatable utilization, therefore practicality is extremely strong.
Description
Technical field
The method and measuring device of on-the-spot test crustal stress are the utility model is related to, should especially by Test in Situ sets of holes
Power overcoring method asks the measurement of crustal stress to test, and belongs to rock mass mechanics and field of engineering technology.
Background technology
As the deep underground engineering for needing to build in fields such as water conservancy and hydropower, mine, traffic at present increases increasingly.Excavate
Geological conditions deteriorates, crustal stress increase, fragmented rock body increases, head pressure and water yield increase, the factor such as temperature rise to depth
Portion's underground engineering causes to significantly affect, to study the mechanical property of deep underground engineering rock mass, especially work under condition of high ground stress
The stress parameters of Cheng Yanti, approach more directly, economic is to carry out Test in Situ stress measurement, and stress relief by overcoring
It is one of most commonly seen rock mass stress measuring method.
At present traditional stress relief by overcoring on the whole, stress relief by overcoring not only have it is easy to use,
The advantages such as cost is low, while single hole triaxiality can also be measured, but in actually measuring, microfissure and rock mass are brilliant
Grain has a great influence stress relief by overcoring, so as to cause the drift value of strain gauge reading excessive.And involved by this method
Moisture-proof and technology for applying is sufficiently complex, and particularly when being measured in having water drilling hole, its difficult coefficient will increase severely.
And hollow inclusion Strain Method can effectively avoid the shadow of microfissure, rock mass crystal and water to acquisition accurate measurements
Ring, but the making of the epoxy resin hollow inclusion sensor of hollow inclusion strain gauge is a very elaboration, to resin,
The ratio requirement of curing agent material is very stringent, and the control especially to experimental temperature requires harsh.If resin, curing agent the proportioning palm
Hold improper, manufactured sensor performance is with regard to unstable, the temperature controlled improper failure that may also cause manufacturing process.
In view of the problems of existing rock mass measuring method and device, as strain rosette in traditional stress relief by overcoring is straight
Connect and be attached in hole wall rock mass so that the contact surface of strain rosette and hole wall is small, it is difficult to ensure that bonding quality；And hollow inclusion strain gauge
Epoxy resin hollow inclusion sensor making require it is harsh, it is not easy to operate the problems such as, propose that one kind is based on sets of holes stress solution
Division, using indirect strain measurement, conveniently can accurately measure rock mass crustal stress, adapt to high temperature, have the severe measuring environment such as water,
And recyclable geostress survey device.
Utility model content
The purpose of this utility model is to overcome the defects of the prior art, there is provided a kind of recyclable geostress survey dress
Put, its is easy to use, can adapt to high temperature, has the severe measuring environment such as water, energy recycling, obtains lively should exactly
Force data, accurate stress Evolution Data is provided for the stability assessment of deep underground engineering and damage control.
To achieve the above object, the technical solution of the utility model is：
A kind of recyclable geostress survey device, including guide rod, joint protective sleeve, matrix steel tube, compensated cavity, test
Chamber, circular metal gasket, guide head, elastic membrane, strain rosette, liquid injection pipe, air injection pipe, metal fixing sleeve, reading conducting wire, fast quick access
Head, clamp nut, liquid pressing device, gas pressurized device, differential pressure control valve, data acquisition device, three-way control valve, fluid injection
Hose, gas injection hose, compensated cavity polyurethane tube and test chamber polyurethane tube are formed, and the test chamber polyurethane tube is sleeved on matrix
The middle part of steel pipe, test chamber is formed with matrix steel tube, and the compensated cavity polyurethane tube is located at the both ends of test chamber polyurethane tube, is covered
Compensated cavity is formed on matrix steel tube, and with matrix steel tube, compensated cavity both ends are equipped with metal circular gasket, the metal circular pad
Piece both sides are provided with clamp nut, so that test chamber polyurethane tube and compensated cavity polyurethane tube are fixed on matrix steel tube,
The elastic membrane is fixed on compensated cavity polyurethane tube and test chamber polyurethane tube by the metal fixing sleeve at both ends, is set inside it
There is strain rosette, guide head is connected with the right side of described matrix steel pipe, left side is connected with joint protective sleeve, the test chamber polyurethane
Corresponding matrix steel tube is equipped with liquid injection hole in the middle part of pipe, and corresponding matrix steel tube is equipped with injecting hole, institute in the middle part of the compensated cavity
To state matrix steel tube and be internally provided with liquid injection pipe, air injection pipe and reading conducting wire, the liquid injection pipe is connected by liquid injection hole with test chamber,
The air injection pipe is connected by injecting hole with compensated cavity, and the liquid injection pipe, air injection pipe and reading conducting wire are on the left of matrix steel tube
To stretch out, the liquid injection pipe and air injection pipe are connected in joint protective sleeve by quick coupling with fluid injection hose and gas injection hose,
The guide rod can snap-fitting protective case left side, the fluid injection hose pass through guide rod inside with outside liquid pressue device
It is connected, the gas injection hose inside guide rod with extraneous gas pressue device by being connected, the fluid injection hose and gas injection
Hose is connected in outside by three-way control valve with differential pressure control valve, and described reading conducting wire one end passes through positioned at matrix steel tube
On reading conducting wire drilling and circular metal gasket on gasket drill be connected with the strain rosette in elastic membrane, the reading conducting wire
The other end is connected with data acquisition device.
A kind of recyclable geostress survey device of the utility model, wherein, described matrix steel pipe is stainless steel, empty
Core structure.
A kind of recyclable geostress survey device of the utility model, wherein, the elastic membrane is epoxy resin material.
A kind of recyclable geostress survey device of the utility model, wherein, the guide rod is hollow-core construction.
A kind of recyclable geostress survey device of the utility model, wherein, the joint protective sleeve is hollow-core construction.
A kind of recyclable geostress survey device of the utility model, wherein, the reading conducting wire drilling is positioned at fastening spiral shell
On matrix steel tube between female and joint protective sleeve.
A kind of recyclable geostress survey device of the utility model, wherein, the quick coupling reaches setting for one kind
The connector that pressure can disconnect automatically.
After using the above scheme, since the utility model includes guide rod, joint protective sleeve, matrix steel tube, compensated cavity, survey
Try chamber, circular metal gasket, guide head, elastic membrane, strain rosette, liquid injection pipe, air injection pipe, metal fixing sleeve, reading conducting wire, quick
Connector, clamp nut, liquid pressing device, gas pressurized device, differential pressure control valve, data acquisition device, three-way control valve, note
Liquid hose, gas injection hose, compensated cavity polyurethane tube and test chamber polyurethane tube, send device into core drilling by guide rod and refer to
After place is put in positioning, respectively by gas pressurized device by air injection pipe to compensated cavity and liquid pressing device by liquid injection pipe to survey
Pressurize in examination chamber, then pass through three-way control valve and the pressure of differential pressure control valve compensated cavity polyurethane tube and test chamber polyurethane tube
Power is consistent, it is ensured that a real cylindric deformation is produced along test chamber, so that elastic membrane is adjacent in hole completely
On wall, the stress of core is released, the deflection of core is gathered by strain rosette and data acquisition device, and then obtain stress relieving
The crustal stress of preceding rock mass is more by replacing the i.e. achievable present apparatus repetition of elastic membrane by taking out the i.e. recyclable present apparatus of core
Secondary utilization.Since the present apparatus can ensure that elastic membrane is fitted on hole wall completely, the coupling mass of strain rosette and palisades ensure that,
Using stress relief by overcoring principle, the crustal stress of rock mass can be accurately obtained.The present apparatus is easy to operate, tries to achieve data accuracy height
And repeatable utilization, therefore practicality is extremely strong.
Brief description of the drawings
The technical solution of the utility model is further described in detail with reference to the accompanying drawings and detailed description.
Fig. 1 is a kind of profile of recyclable geostress survey device of the utility model.
Fig. 2 is drilling construction schematic diagram in this example.
Fig. 3 is a kind of recyclable geostress survey device course of work schematic diagram of the utility model.
Fig. 4 is a kind of recyclable geostress survey device data acquisition schematic diagram of the utility model.
In figure, 1- guide rods, 2- joint protective sleeves, 3- matrix steel tubes, 4- compensated cavities, 5- test chambers, 6- circular metal pads
Piece, 7- guide heads, 8- elastic membranes, 9- strain rosettes, 10- liquid injection pipes, 11- air injection pipes, 12- metal fixing sleeves, 13- reading conducting wires,
14- quick couplings, 15- clamp nuts, 16- liquid pressing devices, 17- gas pressurized devices, 18- differential pressure control valves, 19- data
Harvester, 20- three-way control valves, the big drillings of 21-, 22- small bores, 23- tubular cores, 24- basement rock, 25- hole walls, 101- notes
Liquid hose, 111- gas injection hoses, the drilling of 301- readings conducting wire, 401- compensated cavity polyurethane tubes, 501- test chamber polyurethane tubes,
601- gaskets drill, 1001- liquid injection holes, 1101- injecting holes.
Embodiment
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with the accompanying drawings and
Specific embodiment is described in detail.
As shown in Figure 1, a kind of recyclable geostress survey device, including guide rod 1, joint protective sleeve 2, matrix steel tube
3, compensated cavity 4, test chamber 5, circular metal gasket 6, guide head 7, elastic membrane 8, strain rosette 9, liquid injection pipe 10, air injection pipe 11, gold
Belong to fixing sleeve 12, reading conducting wire 13, quick coupling 14, clamp nut 15, fluid injection hose 101, gas injection hose 111, compensated cavity gathers
Urethane pipe 401, test chamber polyurethane tube 501, liquid injection hole 1001, injecting hole 1101, the test chamber polyurethane tube 501 are sleeved on
The middle part of matrix steel tube 3, forms test chamber 5, the compensated cavity polyurethane tube 401 is located at test chamber polyurethane with matrix steel tube 3
The both ends of pipe 501, are sleeved on matrix steel tube 3, and form compensated cavity 4 with matrix steel tube 3, and 4 both ends of compensated cavity are equipped with metal circular
Gasket 6,6 both sides of metal circular gasket are provided with clamp nut 15, so that test chamber polyurethane tube 501 and compensated cavity
Polyurethane tube 401 is fixed on matrix steel tube 3, and the elastic membrane 8 is fixed on compensated cavity by the metal fixing sleeve 12 at both ends and gathers
On urethane pipe 401 and test chamber polyurethane tube 501, strain rosette 9 is internally provided with, the right side of described matrix steel pipe 3, which is connected with, leads
To first 7, left side is connected with joint protective sleeve 2, and corresponding matrix steel tube 3 is equipped with note in the middle part of the test chamber polyurethane tube 501
Fluid apertures 1001, the corresponding matrix steel tube 3 in the middle part of the compensated cavity 4 are equipped with injecting hole 1101, and described matrix steel pipe 3 is internally provided with
Liquid injection pipe 10, air injection pipe 11 and reading conducting wire 13, the liquid injection pipe 10 is connected by liquid injection hole 1001 with test chamber 5, described
Air injection pipe 11 is connected by injecting hole 1101 with compensated cavity 4, and the liquid injection pipe 10, air injection pipe 11 and reading conducting wire 13 are from matrix
The left side of steel pipe 3 is stretched out, and the liquid injection pipe 10 and air injection pipe 11 pass through quick coupling 14 and fluid injection hose in joint protective sleeve 2
101 are connected with gas injection hose 111, and the left side of joint protective sleeve 2 is connected with guide rod 1, as shown in Fig. 2, the fluid injection hose 101
It is connected by the inside of guide rod 1 with outside liquid pressue device 16, the gas injection hose 111 is by the inside of guide rod 1 with outside
Portion's gas pressurized device 17 is connected, the fluid injection hose 101 and gas injection hose 111 outside by three-way control valve 20 with it is poor
Pressure regulating valve 18 is connected, and described 13 one end of reading conducting wire passes through the reading conducting wire drilling 301 on matrix steel tube 3 and circle
Gasket drilling 601 on metal gasket 6 is connected with the strain rosette 9 in elastic membrane 8, and 13 other end of reading conducting wire is adopted with data
Acquisition means 19 are connected.
The specific implementation case of the utility model is as follows：
1st, as shown in Fig. 2, first boring big drilling 21 on basement rock 24 to predetermined depth with core drill bit, core is taken out, is polished
Bottom hole, and rinse well, then concentric small bore 22 is bored to predetermined depth in 21 bottom surfaces of drilling greatly.
2nd, a kind of recyclable geostress survey device that installation is complete is slowly sent into by guide rod 1 and guide head 7
22 specified location of small bore.
3rd, as shown in figure 3, closing gas injection conduit 111 to the three-way control valve door 20 and injection catheter of differential pressure control valve 18
101 to differential pressure control valve 18 three-way control valve door 20, first open gas pressurized device 17 and switch so that gases at high pressure lead to successively
Cross gas injection hose 111, air injection pipe 11, injecting hole 1101 to enter in compensated cavity 4, after being passed through the gases at high pressure of a period of time so that
Compensated cavity polyurethane tube 401 gradually expands, until touching hole wall 25, closes gas pressurized device 17 and switchs, then open liquid
Pressue device 18 switchs so that highly pressurised liquid passes sequentially through fluid injection hose 101, liquid injection pipe 10, liquid injection hole 1001 and enters test chamber 5
In, after being passed through the highly pressurised liquid of a period of time so that test chamber polyurethane tube 501 gradually expands, then opens three previously closed
Logical control valve 20, is protected by the pressure of 18 compensated cavity polyurethane tube 401 of differential pressure control valve and test chamber polyurethane tube 501
Hold unanimously, when reaching rated pressure, quick coupling 14 disconnects automatically, it is ensured that real cylindric along the generation of test chamber 5 one
Deformation, so that elastic membrane 8 is adjacent on hole wall 25 completely, adjusts and is adopted by the data of the connection strain rosette 9 of reading conducting wire 13
Acquisition means 19 so that dependent variable at this time is zero.
4th, as shown in figure 4, extraction guide rod 1, fluid injection hose 101 and gas injection hose 111, the big drilling 21 of deepening so that cylinder
Shape core 23 is separated with basement rock 24, realizes stress relieving, then tubular core 23 deforms upon the elastic membrane 8 for making to be close to thereon and also sends out
Raw deformation, the data variation of strain rosette 9 since then is recorded by data acquisition device 19, until data no longer change, is led to
The crustal stress size of rock mass herein can accurately be drawn by crossing relevant Data Analysis Services.
5th, tubular core 23 is taken out, so as to recycle a kind of recyclable geostress survey device of the utility model, is passed through
The fluid in cavity is excluded, it is i.e. reusable to replace elastic membrane 8, strain rosette 9 and metal fixing sleeve 12.
It should be noted last that above embodiment is only illustrating the technical solution of the utility model rather than limit
System, although the utility model is described in detail with reference to preferred embodiment, it will be understood by those of ordinary skill in the art that,
Can be to the technical solution of the utility model technical scheme is modified or replaced equivalently, without departing from the essence of technical solutions of the utility model
God and scope, it should all cover among the right of the utility model.
Claims (7)
1. a kind of recyclable geostress survey device, including guide rod (1), joint protective sleeve (2), matrix steel tube (3), auxiliary
Chamber (4), test chamber (5), circular metal gasket (6), guide head (7), elastic membrane (8), strain rosette (9), liquid injection pipe (10), gas injection
Manage (11), metal fixing sleeve (12), reading conducting wire (13), quick coupling (14), clamp nut (15), liquid pressing device
(16), gas pressurized device (17), differential pressure control valve (18), data acquisition device (19), three-way control valve (20), fluid injection hose
(101), gas injection hose (111), compensated cavity polyurethane tube (401), test chamber polyurethane tube (501), liquid injection hole (1001), gas injection
Hole (1101), the test chamber polyurethane tube (501) are sleeved on the middle part of matrix steel tube (3), and test chamber is formed with matrix steel tube (3)
(5), the compensated cavity polyurethane tube (401) is sleeved on the both ends of test chamber polyurethane tube (501), is sleeved on matrix steel tube (3), and
Compensated cavity (4) is formed with matrix steel tube (3), compensated cavity (4) both ends are equipped with metal circular gasket (6), the metal circular gasket
(6) both sides are provided with clamp nut (15), so that test chamber polyurethane tube (501) and compensated cavity polyurethane tube (401) are solid
It is scheduled on matrix steel tube (3), the elastic membrane (8) is fixed on compensated cavity polyurethane tube by the metal fixing sleeve (12) at both ends
(401) and on test chamber polyurethane tube (501), strain rosette (9) is internally provided with, described matrix steel pipe is connected with the right side of (3)
Guide head (7), left side are connected with joint protective sleeve (2), corresponding matrix steel tube in the middle part of the test chamber polyurethane tube (501)
(3) liquid injection hole (1001) is equipped with, corresponding matrix steel tube (3) is equipped with injecting hole (1101), institute in the middle part of the compensated cavity (4)
State matrix steel tube (3) and be internally provided with liquid injection pipe (10), air injection pipe (11) and reading conducting wire (13), the liquid injection pipe (10) passes through note
Fluid apertures (1001) is connected with test chamber (5), and the air injection pipe (11) is connected by injecting hole (1101) with compensated cavity (4),
The liquid injection pipe (10), air injection pipe (11) and reading conducting wire (13) are stretched out on the left of the matrix steel tube (3), the liquid injection pipe (10) and
Air injection pipe (11) passes through quick coupling (14) and fluid injection hose (101) and gas injection hose (111) phase in joint protective sleeve (2)
Even, guide rod (1) is buckled on the left of joint protective sleeve (2), and the fluid injection hose (101) is internal and exterior by guide rod (1)
Liquid pressing device (16) is connected, and the gas injection hose (111) passes through guide rod (1) inside and extraneous gas pressue device
(17) it is connected, the fluid injection hose (101) and gas injection hose (111) pass through three-way control valve (20) and differential pressure tune in outside
Section valve (18) is connected, described reading conducting wire (13) one end by reading conducting wire on matrix steel tube (3) drilling (301) and
Gasket drilling (601) on circular metal gasket (6) is connected with the strain rosette (9) in elastic membrane (8), the reading conducting wire (13)
The other end is connected with data acquisition device (19).
A kind of 2. recyclable geostress survey device according to claim 1, it is characterised in that：Described matrix steel pipe
(3) it is stainless steel, hollow-core construction.
A kind of 3. recyclable geostress survey device according to claim 1, it is characterised in that：The elastic membrane (8)
For epoxy resin material.
A kind of 4. recyclable geostress survey device according to claim 1, it is characterised in that：The guide rod (1)
For hollow-core construction.
A kind of 5. recyclable geostress survey device according to claim 1, it is characterised in that：The joint protective sleeve
(2) it is hollow-core construction.
A kind of 6. recyclable geostress survey device according to claim 1, it is characterised in that：The reading conducting wire
(13) on matrix steel tube (3) of the drilling between clamp nut (15) and joint protective sleeve (2).
A kind of 7. recyclable geostress survey device according to claim 1, it is characterised in that：The quick coupling
(14) it is a kind of connector that reaches setting pressure and can disconnect automatically.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721344836.9U CN207366116U (en) | 2017-10-15 | 2017-10-15 | A kind of recyclable geostress survey device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721344836.9U CN207366116U (en) | 2017-10-15 | 2017-10-15 | A kind of recyclable geostress survey device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207366116U true CN207366116U (en) | 2018-05-15 |
Family
ID=62420542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721344836.9U Expired - Fee Related CN207366116U (en) | 2017-10-15 | 2017-10-15 | A kind of recyclable geostress survey device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207366116U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588877A (en) * | 2017-10-15 | 2018-01-16 | 安徽理工大学 | A kind of recyclable geostress survey device |
| CN109341922A (en) * | 2018-11-07 | 2019-02-15 | 湖南科技大学 | Detecting earth stress is installed with Tubular Yarn aperture to middle regulator and application method |
| CN109883593A (en) * | 2019-03-15 | 2019-06-14 | 东北大学 | A kind of coal mine rock burst monitoring warning device |
| CN114777963A (en) * | 2022-04-20 | 2022-07-22 | 中国地质科学院地质力学研究所 | Stress strain sensor hole wall coupling device |
| CN116291410A (en) * | 2023-02-24 | 2023-06-23 | 中国矿业大学 | Single-point repeated stress relief original rock stress testing method |
-
2017
- 2017-10-15 CN CN201721344836.9U patent/CN207366116U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107588877A (en) * | 2017-10-15 | 2018-01-16 | 安徽理工大学 | A kind of recyclable geostress survey device |
| CN109341922A (en) * | 2018-11-07 | 2019-02-15 | 湖南科技大学 | Detecting earth stress is installed with Tubular Yarn aperture to middle regulator and application method |
| CN109341922B (en) * | 2018-11-07 | 2024-04-09 | 湖南科技大学 | Hollow inclusion small hole installation centering adjustment device for ground stress test and use method |
| CN109883593A (en) * | 2019-03-15 | 2019-06-14 | 东北大学 | A kind of coal mine rock burst monitoring warning device |
| CN109883593B (en) * | 2019-03-15 | 2021-04-06 | 东北大学 | Coal mine rock burst monitoring and early warning device |
| CN114777963A (en) * | 2022-04-20 | 2022-07-22 | 中国地质科学院地质力学研究所 | Stress strain sensor hole wall coupling device |
| CN116291410A (en) * | 2023-02-24 | 2023-06-23 | 中国矿业大学 | Single-point repeated stress relief original rock stress testing method |
| CN116291410B (en) * | 2023-02-24 | 2023-11-14 | 中国矿业大学 | Single-point repeated stress relief original rock stress testing method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180515 Termination date: 20181015 |
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| CF01 | Termination of patent right due to non-payment of annual fee |