CN103776572B - Detecting earth stress device - Google Patents
Detecting earth stress device Download PDFInfo
- Publication number
- CN103776572B CN103776572B CN201410032090.2A CN201410032090A CN103776572B CN 103776572 B CN103776572 B CN 103776572B CN 201410032090 A CN201410032090 A CN 201410032090A CN 103776572 B CN103776572 B CN 103776572B
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- China
- Prior art keywords
- end cap
- connecting shaft
- polyurethane rod
- ring
- rod
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Abstract
A kind of detecting earth stress device, including polyurethane rod, connecting shaft, left end cap, right end cap, high-voltage tube, liquid pressing device, described connecting shaft is positioned at described polyurethane rod center and connecting shaft two ends and stretches out outside polyurethane rod, described left end cap is fixed on described polyurethane rod left end, described right end cap is fixed on described polyurethane rod right-hand member, liquid injection hole is had in described connecting shaft, described liquid pressing device connects one end of described liquid injection hole by described high-voltage tube, the other end of described liquid injection hole is connected in described polyurethane rod, described liquid pressing device is provided with Pressure gauge.Detecting earth stress device of the present invention, its simple in construction, easy to use, and can accurately record the crustal stress in coal body, rock mass without power supply.
Description
Technical field
The present invention relates to a kind of stress test device, in particular relate to the test device of crustal stress in a kind of coal body, rock mass.
Background technology
Crustal stress refers to underground coal rock stratum subjected to stress, mainly includes the overlying rock weight stress that causes of deadweight and by ground
The tectonic stress that matter tectonism causes.Along with the carrying out that coal mining is movable, destroy original stress equilibrium so that adopt
Dynamic space occurs in that the redistribution of stress, and therefore, the stress of digging spatial peripheral coal and rock also includes mining induced stress.Ground should
Power size is coal mining, supporting and the underlying parameter of the disaster prevention such as Roof Control, coal and gas prominent, tests and assesses
Coal and rock stress is the main contents of pressure observation, be solve by mining influence strata behavior analysis of roadway control, mining sequence design,
Roadway position rationally selects and safeguards, coal body safe working under bump and Coal and Gas Outbursts Prediction and preventing and treating, artesian water
Decision-making foundation Deng key technical problem.
Detecting earth stress is an extremely complex engineering.At present, real applicable underground coal mine working condition, conveniently coal
Rock mass stress testing tool is the most less.
Summary of the invention
It is an object of the invention to provide a kind of detecting earth stress device, its simple in construction, easy to use, and without power supply be
Can accurately record the crustal stress in coal body, rock mass.
To achieve these goals, the technical solution of the present invention is: a kind of detecting earth stress device, excellent including polyurethane,
Connecting shaft, left end cap, right end cap, high-voltage tube, liquid pressing device, described connecting shaft be positioned at described polyurethane rod center and
Connecting shaft two ends are stretched out outside polyurethane rod, and described left end cap is fixed on described polyurethane rod left end, described right end cap is fixed on described
Polyurethane rod right-hand member, described connecting shaft has liquid injection hole, and described liquid pressing device connects described fluid injection by described high-voltage tube
The one end in hole, the other end of described liquid injection hole is connected in described polyurethane rod, and described liquid pressing device is provided with Pressure gauge.
Detecting earth stress device of the present invention, wherein, described left end cap is enclosed within the left end of described connecting shaft, and described right end cap is enclosed within institute
State outside described left and right end cap, on connecting shaft right-hand member, and described connecting shaft, be respectively equipped with two locking nuts.
Detecting earth stress device of the present invention, wherein, described left and right end cap is respectively equipped with ring-type installation end, described polyurethane rod
Left and right being respectively arranged at two ends with ring-type mounting groove, the ring-type installation end on described left end cap is located at the ring-type of described polyurethane rod left end
In mounting groove, the ring-type installation end on described right end cap is located in the ring-type mounting groove of described polyurethane rod right-hand member.
Detecting earth stress device of the present invention, wherein, described liquid injection hole includes interconnective axial direction part and radial section.
Detecting earth stress device of the present invention, wherein, is respectively equipped with sealing ring between described connecting shaft and left and right end cap.
Detecting earth stress device of the present invention, wherein, described liquid pressing device is Manual pressurization pump.
Detecting earth stress device of the present invention, wherein, described polyurethane rod is rubber bar or sticking plaster.
After using such scheme, owing to the present invention includes polyurethane rod, connecting shaft, high-voltage tube, liquid pressing device, connecting shaft
On have liquid injection hole, liquid pressing device by high-voltage tube connect liquid injection hole one end, the other end of liquid injection hole is connected to polyurethane
The center of rod, liquid pressing device is provided with Pressure gauge, therefore can use liquid pressing device that liquid is poly-by liquid injection hole press-in
Urethane rod, in making polyurethane rod, pressure raises, and when the pressure in polyurethane rod is equal with the stress in rock mass, liquid pressing fills
Putting the force value shown by Pressure gauge and be the crustal stress of measured position, this apparatus structure is simple, easy to use, and is not required to
Want power supply.
Accompanying drawing explanation
Fig. 1 is the profile of polyurethane rod in detecting earth stress device of the present invention；
Fig. 2 is the overall diagram of detecting earth stress device of the present invention.
Detailed description of the invention
As shown in Figure 1, 2, a kind of detecting earth stress device, including polyurethane rod 11, connecting shaft 13, left end cap 15, right-hand member
Lid 17, high-voltage tube 18, liquid pressing device 19, connecting shaft 13 is positioned at polyurethane rod 11 centers and connecting shaft 13 two ends are stretched
Going out outside polyurethane rod 11, connecting shaft 13, left end cap 15, right end cap 17 all use stainless steel material, left and right end cap 15,
Being respectively equipped with ring-type installation end 151,171 on 17, polyurethane rod 11 is left and right is respectively arranged at two ends with ring-type mounting groove 111,113,
Ring-type installation end 151 on left end cap 15 is located in the ring-type mounting groove 111 of polyurethane rod 11 left ends, and left end cap 15 overlaps
Ring-type installation end 171 on the left end of connecting shaft 13, right end cap 17 is located at the ring-type mounting groove 113 of polyurethane rod 11 right-hand members
In, and right end cap 17 is enclosed within connecting shaft 13 right-hand member, and connecting shaft 13 is respectively arranged at two ends with trapezoidal thread, in connecting shaft 13
Two locking nuts 21,22,23,24, connecting shaft 13 and left and right end cap it is bolted with respectively outside left and right end cap 15,17
15, being respectively equipped with sealing ring 25,27 between 17, connecting shaft 13 has liquid injection hole 131, liquid injection hole 131 includes interconnecting mutually
The axial direction part 132 connect and radial section 133, liquid pressing device 19 connects has high-voltage tube 18, high-voltage tube 18 to be threadedly connected to note
One end of the axial direction part 132 of fluid apertures 131, one end of liquid injection hole 131 radial section is connected in polyurethane rod 11, and liquid pressing fills
Put 19 and be provided with Pressure gauge 191.In liquid injection hole 131, the liquid of press-in is hydraulic oil, and liquid pressing device 19 uses and manually adds
Press pump.
In liquid injection hole 131, the liquid of press-in can also is that water, and polyurethane rod 11 also can use rubber bar or sticking plaster.
During use, need test crustal stress test point to coal body or rock mass internal bore, detecting earth stress device of the present invention
Putting in being holed, the expansion of polyurethane is extremely strong with contractility, and manually force (forcing) pump pressurizes in polyurethane rod 11, works as pressure
Stop pressurization when power table tends towards stability, read pressure gauge reading and be the crustal stress of measured position.
Embodiment described above is only to be described the preferred embodiment of the present invention, not limits the scope of the present invention
Fixed, on the premise of designing spirit without departing from the present invention, technical scheme is made by this area ordinary skill technical staff
Various deformation and improvement, all should fall in the protection domain that claims of the present invention determines.
Claims (6)
1. a detecting earth stress device, it is characterised in that: include polyurethane rod (11), connecting shaft (13), left end cap (15),
Right end cap (17), high-voltage tube (18), liquid pressing device (19), described connecting shaft (13) is positioned at described poly-
Polyurethane rod (11) is stretched out outward in urethane rod (11) center and connecting shaft (13) two ends, described left end cap (15)
Be fixed on described polyurethane rod (11) left end, described right end cap (17) is fixed on described polyurethane rod (11) right-hand member,
Having liquid injection hole (131) in described connecting shaft (13), described liquid pressing device (19) passes through described high-voltage tube
(18) connecting one end of described liquid injection hole (131), the other end of described liquid injection hole is connected to described polyurethane rod (11)
In, described liquid pressing device (19) is provided with Pressure gauge (191), upper point of described left and right end cap (15,17)
Not being provided with ring-type installation end (151,171), (11) are left and right is respectively arranged at two ends with ring-type installation for described polyurethane rod
Groove (111,113), the ring-type installation end (151) on described left end cap (15) is located at described polyurethane rod (11)
In the ring-type mounting groove (111) of left end, the ring-type installation end (171) on described right end cap (17) is located at described poly-
In the ring-type mounting groove (113) of urethane rod (11) right-hand member.
2. detecting earth stress device as claimed in claim 1, it is characterised in that: described left end cap (15) is enclosed within described connection
The left end of axle (13), described right end cap (17) is enclosed within described connecting shaft (13) right-hand member, and described connecting shaft (13)
On described left and right end cap (15,17) outside be respectively equipped with two locking nuts (21,22,23,24).
3. detecting earth stress device as claimed in claim 2, it is characterised in that: described liquid injection hole (131) includes interconnecting mutually
The axial direction part (132) connect and radial section (133).
4. detecting earth stress device as claimed in claim 3, it is characterised in that: described connecting shaft (13) and left and right end cap
Sealing ring (25,27) it is respectively equipped with between (15,17).
5. detecting earth stress device as claimed in claim 4, it is characterised in that: described liquid pressing device (19) is manual
Force (forcing) pump.
6. detecting earth stress device as claimed in claim 5, it is characterised in that: described polyurethane rod (11) be rubber bar or
Sticking plaster.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410032090.2A CN103776572B (en) | 2014-01-22 | 2014-01-22 | Detecting earth stress device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410032090.2A CN103776572B (en) | 2014-01-22 | 2014-01-22 | Detecting earth stress device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103776572A CN103776572A (en) | 2014-05-07 |
| CN103776572B true CN103776572B (en) | 2016-08-17 |
Family
ID=50569083
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410032090.2A Expired - Fee Related CN103776572B (en) | 2014-01-22 | 2014-01-22 | Detecting earth stress device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103776572B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107817069B (en) * | 2017-09-23 | 2020-05-22 | 广东建瀚工程管理有限公司 | Exploration engineering soft rock ground stress testing device |
| CN107588877A (en) * | 2017-10-15 | 2018-01-16 | 安徽理工大学 | A kind of recyclable geostress survey device |
| CN114485904A (en) * | 2022-01-25 | 2022-05-13 | 西北大学 | Ultrasonic sensor based on conical multi-core optical fiber |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0440012A1 (en) * | 1990-02-01 | 1991-08-07 | Pfister Messtechnik GmbH | Force measuring device |
| CN201622211U (en) * | 2010-03-30 | 2010-11-03 | 深圳市优宝惠新材料科技有限公司 | Stress loading device for detecting environment stress cracking indexes |
| CN102589767A (en) * | 2012-02-24 | 2012-07-18 | 山东大学 | Rock core internal stress field test instrument and use method thereof |
| CN202628024U (en) * | 2012-06-04 | 2012-12-26 | 浙江华东工程安全技术有限公司 | Hyperpressure packer device |
| CN203688112U (en) * | 2014-01-22 | 2014-07-02 | 安徽理工大学 | Crustal stress testing apparatus |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5363824B2 (en) * | 2009-01-30 | 2013-12-11 | サンコーコンサルタント株式会社 | Hydraulic fracturing test method and measuring device |
-
2014
- 2014-01-22 CN CN201410032090.2A patent/CN103776572B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0440012A1 (en) * | 1990-02-01 | 1991-08-07 | Pfister Messtechnik GmbH | Force measuring device |
| CN201622211U (en) * | 2010-03-30 | 2010-11-03 | 深圳市优宝惠新材料科技有限公司 | Stress loading device for detecting environment stress cracking indexes |
| CN102589767A (en) * | 2012-02-24 | 2012-07-18 | 山东大学 | Rock core internal stress field test instrument and use method thereof |
| CN202628024U (en) * | 2012-06-04 | 2012-12-26 | 浙江华东工程安全技术有限公司 | Hyperpressure packer device |
| CN203688112U (en) * | 2014-01-22 | 2014-07-02 | 安徽理工大学 | Crustal stress testing apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103776572A (en) | 2014-05-07 |
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Granted publication date: 20160817 Termination date: 20180122 |