CN209559384U - A kind of gob side entry retaining goaf lateral stress monitoring device - Google Patents
A kind of gob side entry retaining goaf lateral stress monitoring device Download PDFInfo
- Publication number
- CN209559384U CN209559384U CN201920533121.0U CN201920533121U CN209559384U CN 209559384 U CN209559384 U CN 209559384U CN 201920533121 U CN201920533121 U CN 201920533121U CN 209559384 U CN209559384 U CN 209559384U
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- CN
- China
- Prior art keywords
- entry retaining
- stress
- shaped steel
- fixedly connected
- lateral stress
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model relates to stress monitoring technical fields, and disclose a kind of gob side entry retaining goaf lateral stress monitoring device, include U-shaped steel, the right side of the U-shaped steel is fixedly connected with metal baffle, the right side of the metal baffle is connected with stress meter by bolt, the upper and lower surfaces of the stress meter are fixedly connected to hanging ring, and the front of the stress meter, which is connected, is connected to high-pressure rubber pipe.The gob side entry retaining goaf lateral stress monitoring device, by the variation for monitoring lateral stress, it optimizes deep medium-thickness seam and cuts top release gear cash support technology, gob side entry retaining is carried out by binodal U-shaped steel substitution I-steel and keeps off cash supporting, continue to monitor goaf top plate spoil be caving, it is broken it is swollen during to the lateral stress of U-shaped steel, it explores the strata-pressure behavior of the side Liu Xiang lane side and then is to keep off the type selecting of cash supporting equipment or the opportunity of reprocessing in lane is stayed to lay the foundation, solve the problems, such as that the lane gob side entry retaining Nei Liu side lane side lateral stress changing rule is difficult to grasp.
Description
Technical field
The utility model relates to stress monitoring technical field, specially a kind of gob side entry retaining goaf lateral stress monitoring dress
It sets.
Background technique
Top release gob side entry retaining is cut without coal pillar mining technology, it is quick-fried along back production side lane side cut top before working face extraction
It is broken, shorten the length of goaf top plate cantilever beam, reduce gob side entry retaining is influenced by goaf dynamic pressure, after working face extraction,
Goaf top plate is caving along presplitting position and forms lane side under the action of keeping off cash supporting, continues to use for next working face.
It cuts top release gob side entry retaining and gear cash supporting is carried out using double-level-metal net cooperation I-steel or binodal U-shaped steel.Back production
Period successively hangs rhombus net and big eye net at tail first, above and below big eye net outer side stand binodal U-shaped steel, U-shaped steel
It is interlocked using limiting card cable, front and back is interlocked using connection clamp cable, forms gear cash wall whole together with double-level-metal net.
After gob side entry retaining is formed, goaf inner top panel spoil is persistently caving, broken swollen persistently forms side to gear cash supporting wall
To pressure.When monitoring the changing rule system voltage-controlled to the side Liu Xiang lane side mine of goaf lateral stress, keeping off cash supporting optimum and reprocess
Key issues of machine determines is of great significance.
But existing device can not be measured between gob side entry retaining gear cash supporting equipment and goaf spoil on the market
Lateral stress causes the lane gob side entry retaining Nei Liu side lane side lateral stress changing rule and is difficult to the problem of grasping.
Utility model content
In view of the deficiencies of the prior art, the utility model provides a kind of gob side entry retaining goaf lateral stress monitoring dress
It sets, has the lateral stress advantage measured between gob side entry retaining gear cash supporting equipment and goaf spoil, solve gob side entry retaining
The lane Nei Liu side lane side lateral stress changing rule is difficult to the problem of grasping.
To realize that above-mentioned gob side entry retaining out keeps off the purpose of the lateral stress between cash supporting equipment and goaf spoil, this reality
It is provided the following technical solutions with novel: a kind of gob side entry retaining goaf lateral stress monitoring device, including U-shaped steel, the U-shaped steel
Right side be fixedly connected with metal baffle, the right side of the metal baffle is connected with stress meter by bolt, described to answer
The upper and lower surfaces of power meter are fixedly connected to hanging ring, and the front of the stress meter, which is connected, is connected to high-pressure rubber pipe, the height
Moulding pipe is fixedly connected with pressure gauge far from one end of the stress meter, and the stress meter is fixed far from the side of the U-shaped steel
It is connected with metal mesh.
Preferably, the side far from the stress meter of the metal mesh is fixedly connected with one group of telescopic rod, described flexible
The outer surface for being evenly distributed on the metal mesh of bar, the quantity of the telescopic rod is as many as four, the appearance of the telescopic rod
Surface cover is equipped with spring.
Preferably, the side far from the metal mesh of the telescopic rod is fixedly connected with mounting plate, the mounting plate
Lower surface is fixedly connected with hydraulic stem, and the bottom end of the hydraulic stem is fixedly connected with tripod.
Preferably, the outer surface of the metal baffle is opened up there are four drilling, and four drillings are evenly distributed on described
The outer surface of metal baffle.
Preferably, the metal baffle, the U-shaped steel and the stress meter are chain by bifilar iron wire.
Beneficial effect
Compared with prior art, the utility model provides a kind of gob side entry retaining goaf lateral stress monitoring device, tool
It is standby following the utility model has the advantages that
(1) the gob side entry retaining goaf lateral stress monitoring device optimizes deep by monitoring the variation of lateral stress
Medium-thickness seam cuts top release gear cash support technology, i.e., carries out gob side entry retaining by binodal U-shaped steel substitution I-steel and keep off cash supporting, continue
Monitoring goaf top plate spoil be caving, it is broken it is swollen during to the lateral stress of U-shaped steel, the mine pressure for exploring the side Liu Xiang lane side is aobvious
Existing rule is to keep off the type selecting of cash supporting equipment or the opportunity of reprocessing in lane is stayed to lay the foundation in turn, solves the lane gob side entry retaining Nei Liu side
Lane side lateral stress changing rule is difficult to the problem of grasping.
(2) gob side entry retaining goaf lateral stress monitoring device, by playing and improving device and inspection by setting spring
The stability of survey portion connection, improves the accuracy for collecting data, plays the high effect of device by the way that hydraulic stem is arranged, passes through setting
Tripod plays the effect for improving device stability, to achieve the purpose that convenient to use.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the main view of the utility model
Fig. 3 is the top view of the utility model.
In figure: 1 metal baffle, 2U fashioned iron, 3 high-pressure rubber pipes, 4 pressure gauges, 5 metal meshes, 6 stress meters, 7 hanging rings, 8 are stretched
Bar, 9 springs, 10 mounting plates, 11 hydraulic stems, 12 tripods.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
Please refer to Fig. 1-3, a kind of gob side entry retaining goaf lateral stress monitoring device, including U-shaped steel 2, the right side of U-shaped steel 2
Side is fixedly connected with metal baffle 1, and the outer surface of metal baffle 1 is opened up there are four drilling, and four drillings are evenly distributed on gold
Belong to the outer surface of baffle 1, the right side of metal baffle 1 is connected with stress meter 6 by bolt, metal baffle 1, U-shaped steel 2 and answers
Power meter 6 is chain by bifilar iron wire, after gob side entry retaining just stays, the space not being caving sufficiently also using goaf spoil, in time
Lateral stress monitoring device is installed, since notch is arranged metal at 2 notch of U-shaped steel and keeps off towards goaf when U-shaped steel 2 is stood
Plate 1 makes an entirety, increases the area that stress meter 6 is in contact with it, avoids stress from concentrating, reach the mesh continued to monitor
, continue to monitor the purpose for the lateral stress that goaf spoil acts in U-shaped steel 2.
The upper and lower surfaces of stress meter 6 are fixedly connected to hanging ring 7, and the front of stress meter 6, which is connected, is connected to high-pressure glue
Pipe 3, high-pressure rubber pipe 3 are fixedly connected with pressure gauge 4 far from one end of stress meter 6, and side of the stress meter 6 far from U-shaped steel 2 is fixed to be connected
It is connected to metal mesh 5, the side of the separate stress meter 6 of metal mesh 5 is fixedly connected with one group of telescopic rod 8, and telescopic rod 8 is uniformly distributed
In the outer surface of metal mesh 5, for the quantity of telescopic rod 8 as many as four, the outer surface of telescopic rod 8 is arranged with spring 9, telescopic rod 8
The side of separate metal mesh 5 be fixedly connected with mounting plate 10, the lower surface of mounting plate 10 is fixedly connected with hydraulic stem 11, hydraulic
The bottom end of bar 11 is fixedly connected with tripod 12, by the way that spring 9 is arranged, plays and improves the stability that device is connect with test section,
The accuracy for collecting data is improved, the high effect of device is played by the way that hydraulic stem 11 is arranged, by the way that tripod 12 is arranged, plays and mention
The effect of high device stability, to achieve the purpose that convenient to use.
Working principle: the gob side entry retaining goaf lateral stress monitoring device, goaf spoil is caving, it is broken it is swollen during produce
Raw stress can objectively respond out by the reading of pressure gauge 4 on stress meter 6, according to actual requirement of engineering, differently
Monitoring station is arranged in matter condition section, and metal baffle 1 and stress meter 6 are installed between U-shaped steel 2 and gear cash metal mesh 5, daily to do
Good lateral stress observation, draws out different geological conditions section goaf lateral stress data variation curve graph, further instructs edge
The engineering construction in the lane Kong Liu.
In conclusion the gob side entry retaining goaf lateral stress monitoring device, by monitoring the variation of lateral stress, optimization
Deep medium-thickness seam cuts top release gear cash support technology, i.e., substitutes I-steel by binodal U-shaped steel 2 and carry out gob side entry retaining and keep off cash branch
Shield, continue to monitor goaf top plate spoil be caving, it is broken it is swollen during to the lateral stress of U-shaped steel 2, explore the side Liu Xiang lane side
Strata-pressure behavior, and then for gear cash supporting equipment type selecting or stay the opportunity of reprocessing in lane to lay the foundation, solve gob side entry retaining
The lane Nei Liu side lane side lateral stress changing rule is difficult to the problem of grasping.
The gob side entry retaining goaf lateral stress monitoring device plays by the way that spring 9 is arranged and improves device and test section company
The stability connect improves the accuracy for collecting data, the high effect of device is played by the way that hydraulic stem 11 is arranged, by the way that three feet are arranged
Frame 12 plays the effect for improving device stability, to achieve the purpose that convenient to use.
It should be noted that the terms "include", "comprise" or its any other variant are intended to the packet of nonexcludability
Contain, so that the process, method, article or equipment for including a series of elements not only includes those elements, but also including
Other elements that are not explicitly listed, or further include for elements inherent to such a process, method, article, or device.
In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that including the element
Process, method, article or equipment in there is also other identical elements.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of gob side entry retaining goaf lateral stress monitoring device, including U-shaped steel (2), it is characterised in that: the U-shaped steel (2)
Right side be fixedly connected with metal baffle (1), the right side of the metal baffle (1) is connected with stress meter by bolt
(6), the upper and lower surfaces of the stress meter (6) are fixedly connected to hanging ring (7), and the front of the stress meter (6) is connected
It is connected to high-pressure rubber pipe (3), the high-pressure rubber pipe (3) is fixedly connected with pressure gauge (4), institute far from the one end of the stress meter (6)
It states stress meter (6) and is fixedly connected with metal mesh (5) far from the side of the U-shaped steel (2).
2. a kind of gob side entry retaining goaf lateral stress monitoring device according to claim 1, it is characterised in that: the gold
The side far from the stress meter (6) for belonging to net (5) is fixedly connected with one group of telescopic rod (8), and the telescopic rod (8) is uniformly divided
Cloth is in the outer surface of the metal mesh (5), and the quantity of the telescopic rod (8) is as many as four, the outer surface of the telescopic rod (8)
It is arranged with spring (9).
3. a kind of gob side entry retaining goaf lateral stress monitoring device according to claim 2, it is characterised in that: described to stretch
The side far from the metal mesh (5) of contracting bar (8) is fixedly connected with mounting plate (10), and the lower surface of the mounting plate (10) is solid
Surely it is connected with hydraulic stem (11), the bottom end of the hydraulic stem (11) is fixedly connected with tripod (12).
4. a kind of gob side entry retaining goaf lateral stress monitoring device according to claim 1, it is characterised in that: the gold
The outer surface for belonging to baffle (1) is opened up there are four drilling, and four described drill are evenly distributed on the appearance of the metal baffle (1)
Face.
5. a kind of gob side entry retaining goaf lateral stress monitoring device according to claim 1, it is characterised in that: the gold
It is chain by bifilar iron wire to belong to baffle (1), the U-shaped steel (2) and the stress meter (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920533121.0U CN209559384U (en) | 2019-04-19 | 2019-04-19 | A kind of gob side entry retaining goaf lateral stress monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920533121.0U CN209559384U (en) | 2019-04-19 | 2019-04-19 | A kind of gob side entry retaining goaf lateral stress monitoring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209559384U true CN209559384U (en) | 2019-10-29 |
Family
ID=68313115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920533121.0U Expired - Fee Related CN209559384U (en) | 2019-04-19 | 2019-04-19 | A kind of gob side entry retaining goaf lateral stress monitoring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209559384U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213181A (en) * | 2020-09-16 | 2021-01-12 | 安徽理工大学 | Method for monitoring and simulating lateral stress of filling entry retaining roadside body |
-
2019
- 2019-04-19 CN CN201920533121.0U patent/CN209559384U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213181A (en) * | 2020-09-16 | 2021-01-12 | 安徽理工大学 | Method for monitoring and simulating lateral stress of filling entry retaining roadside body |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191029 Termination date: 20200419 |
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| CF01 | Termination of patent right due to non-payment of annual fee |