CN215256256U - Tunnel initiative top protection temporary support device - Google Patents
Tunnel initiative top protection temporary support device Download PDFInfo
- Publication number
- CN215256256U CN215256256U CN202120248772.2U CN202120248772U CN215256256U CN 215256256 U CN215256256 U CN 215256256U CN 202120248772 U CN202120248772 U CN 202120248772U CN 215256256 U CN215256256 U CN 215256256U
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- China
- Prior art keywords
- jack
- supporting beam
- supporting
- support
- anchor rod
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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.)
- Expired - Fee Related
Links
- 239000003381 stabilizer Substances 0.000 claims abstract description 26
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 229910000831 Steel Inorganic materials 0.000 claims description 11
- 239000010959 steel Substances 0.000 claims description 11
- 238000004873 anchoring Methods 0.000 claims description 8
- 238000010276 construction Methods 0.000 abstract description 9
- 230000005641 tunneling Effects 0.000 description 9
- 239000003245 coal Substances 0.000 description 7
- 239000011435 rock Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000010878 waste rock Substances 0.000 description 1
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- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
The utility model relates to a temporary support device for a tunnel active roof guard, which comprises a front-exploring support beam, a support beam stabilizer and a jack; the front and rear ends of the front detection supporting beam are respectively provided with a front connection jack and a rear connection jack, a front support point of a jack is arranged below the front of the front detection supporting beam, a rear support point of the jack is arranged below the rear of the front detection supporting beam, the middle of the front detection supporting beam is provided with a through anchor rod tray hole, the front detection supporting beam is fixed on an anchor rod in a top plate, the two ends of the jack are connected to the front support point of the jack of a second front detection supporting beam and the rear support point of the jack of a first front detection supporting beam, and the jack can lift the front detection supporting beam to support the top plate. The supporting device is circularly disassembled and assembled, extends in sections to adapt to the complex shape and trend of the roadway roof, and is tightly attached to the roadway roof to provide stable active supporting force. The operation is simple and easy, can effectual control roof, guarantees the safety of underworkings construction environment, and the tunnelling work can go on in order.
Description
Technical Field
The utility model relates to a tunnel initiative top protection temporary support device belongs to coal mine tunnel construction technical field.
Background
In the tunnel construction of coal mine underground and tunnel engineering, the traditional tunneling method is coal rock breaking → temporary support → permanent support → then enters the next cycle, the two procedures of coal rock breaking and permanent support in the same tunnel section are required to be temporarily supported by applying the construction method, the temporary support can ensure the safety of personnel during the permanent support, and constructors can construct under the condition that a top plate has support in the construction process.
Disclosure of Invention
In order to overcome above-mentioned prior art's weak point, the utility model provides a tunnel initiative top protection temporary support device for carry out permanent support and provide better temporary support before the tunnel tunnelling, provide stable supporting power, personnel's safety when guaranteeing to carry out permanent support roof.
The utility model discloses a realize through following technical scheme: the utility model provides a tunnel initiative top protection temporary support device which characterized in that: comprises a front-exploring supporting beam, a supporting beam stabilizer and a jack; the front and rear ends of the front detection supporting beam are respectively provided with a front connection jack and a rear connection jack, a front support point of a jack is arranged below the front of the front detection supporting beam, a rear support point of the jack is arranged below the rear of the front detection supporting beam, the middle of the front detection supporting beam is provided with an anchor rod tray hole, the supporting beam stabilizer comprises a fastener, a bearing, an anchor steel plate and a connecting rod, the fastener is arranged at the upper end of the supporting beam stabilizer, the bearing is arranged in the middle of the supporting beam stabilizer, the periphery of the bearing is connected with the anchor steel plate, the lower end of the stabilizer is the connecting rod, the front detection supporting beam is fixed on an anchor rod in a top plate through the supporting beam stabilizer, the two ends of the jack are provided with joints connected to the front support point of the jack of a second front detection supporting beam and the rear support point of the jack of a first front detection supporting beam, and the jack can lift the front detection supporting beam to support the top plate.
In the front support empty roof area of the front support beam, the connection of two front support beams is that the front connection jack of the second beam is connected with the back connection jack of the first beam by a bolt.
The height of the rear supporting point of the jack is 4-5 times of that of the front supporting point of the jack, and the rear supporting point of the jack and the front supporting point of the jack can be connected with the jack.
The supporting beam stabilizer is connected with the anchor rod through the anchor rod tray hole and clings to the front-exploring supporting beam.
The fastener is connected with the anchor rod, and the fastener is connected with the anchoring steel plate through a bearing.
The utility model has the advantages that: in the roadway construction, a plurality of groups of front-detecting supporting beams can be arranged simultaneously, so that the supporting area is increased; the subsection extension front-exploring supporting beam is hinged to a plurality of sections by adapting to the row spacing of the anchor rods, and adapts to different shapes and trend changes of a roadway roof; the supporting beam stabilizer enables the front-detection supporting beam to be tightly attached to the top plate so as to provide stable active supporting force; the multi-section hinged support device is adopted, the weight is light, and the jack is used for supporting the support device, so that the installation is convenient. The temporary support device for the anchor net roadway roof-touching subsection extension forepoling is reasonable in design, simple and easy to operate, low in cost and good in practical value and economic benefit in coal mine roadway tunneling construction.
Drawings
The invention will be further explained below with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic structural view of the cantilever beam of the present invention;
FIG. 3 is a top view of the cantilever support beam of the present invention;
fig. 4 is a schematic structural view of the supporting beam stabilizer of the present invention.
In the figure: 1. the device comprises a front-detection supporting beam, 2, a supporting beam stabilizer, 3, a jack, 4, an anchor rod, 5, an anchor rod tray, 6, an anchor rod nut, 7, a top plate, 8, a tunneling working surface, 11, a front connecting jack, 12, a front supporting point of the jack, 13, a hole passing through the anchor rod tray, 14, a rear supporting point of the jack, 15, a rear connecting jack, 21, a fastener, 22, a bearing, 23, an anchoring steel plate, 24 and a connecting rod.
Detailed Description
The roadway active roof-protecting temporary supporting device shown in figures 1 to 4 is characterized in that: comprises a front-exploring supporting beam 1, a supporting beam stabilizer 2 and a jack 3; the front and rear ends of the front detecting supporting beam 1 are respectively provided with a front connecting jack 11 and a rear connecting jack 15, a front jack supporting point 12 is arranged below the front part of the front detecting supporting beam 1, a rear jack supporting point 14 is arranged below the rear part of the front detecting supporting beam 1, the middle part of the front detecting supporting beam 1 is provided with an anchor rod tray hole 13, the supporting beam stabilizer 2 comprises a fastener 21, a bearing 22, an anchoring steel plate 23 and a connecting rod 24, the fastener 21 is arranged at the upper end of the supporting beam stabilizer 2, the bearing 22 is arranged in the middle, the periphery of the bearing 22 is connected with the anchoring steel plate 23, the lower end of the stabilizer is the connecting rod 24, the front detecting supporting beam 1 is fixed on the anchor rod 4 in the top plate 7 through the supporting beam stabilizer 2, the two ends of the jack 3 are provided with joints connected on the front jack supporting point 12 of the second front detecting supporting beam 1 and the rear jack supporting point 14 of the first front detecting supporting beam 1, the jack 3 can lift the front support beam 1 to support the top plate 7.
In the advanced supporting empty roof area of the front supporting beam 1, the two front supporting beams 1 are connected through a second front connecting jack 11 and a first rear connecting jack 15 and are connected through a bolt.
The height of the jack rear supporting point 14 is 4-5 times of that of the jack front supporting point 12, and both the jack rear supporting point 14 and the jack front supporting point 12 can be connected with the jack 3.
The supporting beam stabilizer 2 is connected with the anchor rod 4 through the anchor rod tray hole 13 and clings to the front detection supporting beam 1.
The fastener 21 is connected with the anchor rod 4, and the fastener 21 is connected with the anchor steel plate 23 through a bearing 22.
Firstly, initially installing a segmented forepoling beam 1: before the roadway construction, two front-exploring supporting beams 1 are installed, and 2-3 groups are installed according to the width of the roadway. During installation, the forepoling beam 1 passes through the anchor rod tray hole 13, penetrates through the anchor rod tray 5, is tightly attached to the top plate 7, and connects and screws the supporting beam stabilizer 2 and the anchor rod 4.
Secondly, connecting the front probe supporting beam 1 after breaking the coal rock: and after the coal and the waste rock are broken along the direction of the tunneling working face 8 by adopting an explosion or fully-mechanized tunneling machine in the roadway, the third supporting beam of each group is connected and installed on the front detection supporting beam 1 along the tunneling direction. When in installation, the front connecting jack 11 of the third front support beam 1 is connected with the rear connecting jack 15 of the second front support beam 1 and is connected with the front connecting jack by a bolt; connecting a jack 3 to a jack rear supporting point 12 of a second forward-exploring supporting beam 1 and a jack front supporting point 14 of a third forward-exploring supporting beam 1; paving a meter protecting net on the third forward support beam 1; and supplying high-pressure emulsion to the jack 3, enabling the jack 3 to act, and lifting the supporting top plate 7 by the third forward supporting beam 1.
Thirdly, constructing an anchor rod and fixing a forepoling beam 1: and (3) drilling an anchor rod 4 in a third forepoling supporting beam 1 passing through the anchor rod tray hole 13, connecting and screwing the supporting beam stabilizer 2 and the anchor rod 4, enabling the fastener 21 to firmly lean against the anchor rod nut 6, and enabling the anchoring steel plate 23 to be tightly attached to the lower surface of the forepoling supporting beam 1.
Fourthly, mounting the front probe supporting beam 1 to the tunneling working face 8 after the second rock breaking and dismantling: after the second rock breaking, the supporting beam stabilizer 2 on the rearmost front supporting beam 1 is removed, the connecting pin with the front supporting beam 1 is removed, and the rearmost front supporting beam 1 is transported to the tunneling working face 8.
And fifthly, repeating the second step to the fourth step, and repeating the steps in the same way, and repeating the steps for multiple times until the tunneling construction of the whole roadway is completed.
Claims (5)
1. The utility model provides a tunnel initiative top protection temporary support device which characterized in that: comprises a front-exploring supporting beam (1), a supporting beam stabilizer (2) and a jack (3); the front and rear ends of the front detection supporting beam (1) are respectively provided with a front connection jack (11) and a rear connection jack (15), a front support point (12) of a jack is arranged below the front of the front detection supporting beam (1), a rear support point (14) of the jack is arranged below the rear of the front detection supporting beam (1), the middle of the front detection supporting beam (1) is provided with a through anchor rod tray hole (13), the supporting beam stabilizer (2) comprises a fastener (21), a bearing (22), an anchoring steel plate (23) and a connection rod (24), the fastener (21) is arranged at the upper end of the supporting beam stabilizer (2), the bearing (22) is arranged in the middle, the periphery of the bearing (22) is connected with the anchoring steel plate (23), the lower end of the stabilizer is provided with the connection rod (24), the front detection supporting beam (1) is fixed on an anchor rod (4) in the top plate (7) through the supporting beam stabilizer (2), joints are arranged at two ends of the jack (3) and connected to a jack front supporting point (12) of the second forward supporting beam (1) and a jack rear supporting point (14) of the first forward supporting beam (1), and the jack (3) can lift the forward supporting beam (1) to support the top plate (7).
2. The roadway active roof-protecting temporary supporting device according to claim 1, characterized in that: the front-probing supporting beams (1) support the empty roof area in advance, and the two front-probing supporting beams (1) are connected with the first rear-probing inserting hole (15) through the second front-probing inserting hole (11) and are connected by a bolt.
3. The roadway active roof-protecting temporary supporting device according to claim 1, characterized in that: the height of the rear supporting point (14) of the jack is 4-5 times of that of the front supporting point (12) of the jack, and both the rear supporting point (14) and the front supporting point (12) of the jack can be connected with the jack (3).
4. The roadway active roof-protecting temporary supporting device according to claim 1, characterized in that: the supporting beam stabilizer (2) is connected with the anchor rod (4) through the anchor rod tray hole (13) and clings to the forward-exploring supporting beam (1).
5. The roadway active roof-protecting temporary supporting device according to claim 1, characterized in that: the fastener (21) is connected with the anchor rod (4), and the fastener (21) is connected with the anchoring steel plate (23) through a bearing (22).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022432085 | 2020-10-28 | ||
| CN2020224320854 | 2020-10-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215256256U true CN215256256U (en) | 2021-12-21 |
Family
ID=79500114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120248772.2U Expired - Fee Related CN215256256U (en) | 2020-10-28 | 2021-01-29 | Tunnel initiative top protection temporary support device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215256256U (en) |
-
2021
- 2021-01-29 CN CN202120248772.2U patent/CN215256256U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211221 |