CN212376665U - Roadway safety support device - Google Patents
Roadway safety support device Download PDFInfo
- Publication number
- CN212376665U CN212376665U CN202021600272.2U CN202021600272U CN212376665U CN 212376665 U CN212376665 U CN 212376665U CN 202021600272 U CN202021600272 U CN 202021600272U CN 212376665 U CN212376665 U CN 212376665U
- Authority
- CN
- China
- Prior art keywords
- roadway
- fixing
- piece
- fixed
- supporting
- Prior art date
- 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
Images
Landscapes
- Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
Abstract
In order to improve the supporting safety of the roadway supporting device, the roadway supporting device is suitable for the condition of tunneling a broken top plate of a roadway under a complex condition. The utility model provides a roadway safety support device, which comprises an upper protective net, a lower protective net, a base, a support piece, a fixing piece and a fixing rod; the supporting piece is of a double-layer structure, the lower end of the supporting piece is fixed on the base, and the base and the roadway bottom plate are fixed through the ground anchor; the upper protection net is fixed on the upper layer of the support piece, the lower protection net is fixed on the lower layer of the support piece, the outer side of the upper protection net is fixed with fixing rods through fixing pieces, and the fixing rods are horizontally arranged on the outer side of the upper protection net at intervals.
Description
Technical Field
The utility model belongs to the technical field of the colliery is strutted, especially, relate to a tunnel safety support device.
Background
Coal plays an important role in energy systems in China, safety problems in the coal mining process are central, and various effective measures are adopted by various coal mining enterprises in order to reduce the personal injury rate in the coal mining process, wherein the important measure is to support a roadway. The supporting technology in the existing excavation roadway has the problems of low supporting strength, easy falling of broken stones and the like when an anchor cable net is used for supporting, and a roadway supporting device is needed in actual construction operation to improve supporting safety and adapt to the working condition of excavating roadway broken roofs under complex conditions.
SUMMERY OF THE UTILITY MODEL
In order to improve the supporting safety of the roadway supporting device, the roadway supporting device is suitable for the condition of tunneling a broken top plate of a roadway under a complex condition. The utility model provides a tunnel safety support device.
A roadway safety support device comprises an upper protective net, a lower protective net, a base, a supporting piece, a fixing piece and a fixing rod; the supporting piece is of a double-layer structure, the lower end of the supporting piece is fixed on the base, and the base and the roadway bottom plate are fixed through the ground anchor; the upper protection net is fixed on the upper layer of the support piece, the lower protection net is fixed on the lower layer of the support piece, the outer side of the upper protection net is fixed with fixing rods through fixing pieces, and the fixing rods are horizontally arranged on the outer side of the upper protection net at intervals.
Furthermore, the supporting piece is formed by welding I-shaped steel, and the supporting piece is adaptive to the shape of the section of the roadway.
Furthermore, the number of the bases is two, and the bases are respectively arranged on two sides of the roadway bottom plate, which are close to the roadway wall.
Furthermore, the protective net is fixed on the supporting piece through bolts, nuts and fixing pieces.
Furthermore, one end of the fixing part is provided with a vertical through hole, and the other end side surface of the fixing part is provided with a horizontally arranged threaded blind hole.
Furthermore, the two ends of the fixing rod are provided with external threads, and the fixing rod is connected with the threaded blind hole of the fixing piece through the external threads.
Furthermore, the section of the fixing piece along the vertical direction is rectangular or step-shaped.
Furthermore, the dead lever is the cylinder pole, or dead lever both ends are the cylinder threaded rod, and the middle is the flat pole.
The utility model provides the high broken country rock of construction tunnel struts the effect, has strengthened country rock stability, has reduced the roadway support cost expense, and the device can be arranged in broken country rock excavation tunnel under the different complex conditions.
The utility model provides a when tunnel safety support device replaces traditional stock anchor rope to strut, reduced the construction process that needs large-scale drilling equipment such as stock anchor rope drilling, reduced the cost expense of strutting to device overall structure is simple, the operation maintenance of being convenient for.
The utility model discloses compare in traditional anchor bolt support, support piece can directly contact with broken country rock when strutting, plays passive supporting effect, plays high strength supporting role to broken country rock, and the device has set up two-layer protection network simultaneously, can effectively intercept the rock mass that the roof dropped, has guaranteed tunnel constructor and equipment safety, struts effectually.
Drawings
Fig. 1 is the main structure schematic diagram of the roadway safety support device of the utility model.
Fig. 2 is the utility model discloses a supporting device is along the cross-sectional view of tunnel section direction.
Fig. 3 is a main structural schematic diagram of the present invention and a detailed schematic diagram in fig. 1.
Fig. 4 is a schematic sectional view of three main structures of the fixing member of the present invention.
In the figure, an upper layer protection net 1; a lower layer protective net 2; a base 3; a support 4; a fixing member 5; a fixing rod 6; a through hole 7; and a threaded blind hole 8.
Detailed Description
The utility model discloses an improve the safety of strutting of roadway support device, the condition of the broken roof of tunnelling under the adaptation complex condition. The utility model provides a tunnel safety support device. Specific embodiments of the present invention will be described below with reference to fig. 1 to 4.
A certain coal mine tunnel adopts a comprehensive mechanical tunneling construction process, due to the influence of a goaf, a top plate is broken when the tunnel is tunneled to a certain position, the tunnel is broken seriously along with the continuous development and extension of the tunnel, the phenomenon of local caving of the top plate is caused when the tunnel is tunneled to a deeper position again, the traditional tunnel anchor rod and anchor cable support cannot meet the construction requirement, multiple top plate broken stones happen in the early stage of tunnel construction to injure constructors, mechanical equipment and other accidents, and the safe and rapid tunneling of the construction tunnel is seriously threatened. In order to strengthen the supporting safety of the tunnel, reduce the supporting cost, adopt in this coal mine tunnel supporting the utility model provides a tunnel safety supporting device.
A roadway safety supporting device comprises an upper protective net 1, a lower protective net 2, a base 3, a supporting piece 4, a fixing piece 5 and a fixing rod 6; the supporting piece 4 is of a double-layer structure, the lower end of the supporting piece 4 is fixed on the base 3, and the base 3 and the roadway bottom plate are fixed through a ground anchor; the upper layer protection net 1 is fixed on the upper layer of the support piece 4, the lower layer protection net 2 is fixed on the lower layer of the support piece 4, the outer side of the upper layer protection net 1 is fixed with fixing rods 6 through fixing pieces 5, and the fixing rods 6 are horizontally arranged on the outer side of the upper layer protection net 1 at intervals.
The supporting piece 4 is formed by welding I-shaped steel, and the supporting piece 4 is adaptive to the shape of the section of the roadway. The two bases 3 are respectively arranged on two sides of the roadway bottom plate close to the roadway wall. The protective net is fixed on the supporting piece 4 through bolts, nuts and fixing pieces 5. The fixing member 5 has a vertical through hole 7 at one end and a horizontally disposed threaded blind hole 8 at the other end. The two ends of the fixed rod 6 are provided with external threads, and the fixed rod 6 is connected with the fixing piece threaded blind hole 8 through the external threads. The section of the fixing piece 5 along the vertical direction is rectangular or step-shaped. The fixed rod 6 is a cylindrical rod, or two ends of the fixed rod are cylindrical threaded rods, and the middle of the fixed rod is a flat rod.
The protective net is two-layer, and the protective net can adopt the specification length x width to be 1.2m x 0.5m, and two-layer protective net and the inside aspect of support piece 4 contact closely to adopt fixing bolt nut and fixed with the mounting.
The working principle is as follows: firstly, a pneumatic drilling machine is adopted to respectively construct two drill holes on two side bottom plates of a roadway, and a ground anchor rod is adopted to fix the base and the bottom plates; and after the base is installed, the double-layer supporting piece and the base are fixedly connected by adopting a nut. The two layers of protective nets are respectively arranged inside the supporting piece, fixing bolts penetrate through round holes in the supporting piece and the two layers of protective nets, fixing pieces are arranged at the other ends of the bolts, and the bolts penetrating through vertical through holes of the fixing pieces are screwed down by nuts so that the fixing pieces and the protective nets are completely pre-tightened to prevent the protective nets from falling off; and then, mounting a fixing rod according to the width of the protective net, wherein the threaded end of the fixing rod is connected with the threaded blind hole of the fixing piece. After the protective net of the first supporting piece is installed, the second supporting piece is installed, the installation process is the same as that of the first supporting piece, the protective net is stretched and extended to the second supporting piece, and then the first supporting piece and the second supporting piece are fixed through the fixing bolt, the fixing nut and the fixing piece. In the use after the safety support device installation, when the construction tunnel top rubble falls, lower floor's protection network can be intercepted great piece of rock, and less piece of rock can be intercepted by upper protection network to avoid great rockfall to injure the staff by a crashing object, thereby improve the protecting effect of whole device.
Through seeing at actual colliery lane application effect, adopt the utility model discloses improved the broken country rock of construction tunnel and strutted the effect behind the device, strengthened country rock stability, reduced tunnel support cost expense. The device can be used for crushing surrounding rock and excavating roadways under different complex conditions.
This coal mine tunnel has adopted the utility model discloses a after the supporting device, improved the broken country rock supporting effect in construction tunnel, strengthened country rock stability, reduced roadway support cost expense, the device can be arranged in the broken country rock excavation tunnel under the different complex conditions.
When the coal mine tunnel safety support device replaces the traditional anchor rod and anchor cable support, the construction process of large-scale drilling equipment such as anchor rod and anchor cable drilling is reduced, the support cost is reduced, the whole structure of the device is simple, and the operation and maintenance are convenient.
Adopt in this roadway support the utility model discloses a after the supporting device, compare in traditional anchor bolt support, support piece can directly and broken country rock contact when strutting, play passive supporting effect, play high strength supporting role to broken country rock, the device has set up two-layer protection network simultaneously, can effectively intercept the rock mass that the roof falls, has guaranteed tunnel constructor and equipment safety, struts effectually.
Claims (8)
1. A roadway safety support device is characterized by comprising an upper layer protective net, a lower layer protective net, a base, a support piece, a fixing piece and a fixing rod; the supporting piece is of a double-layer structure, the lower end of the supporting piece is fixed on the base, and the base and the roadway bottom plate are fixed through the ground anchor; the upper protection net is fixed on the upper layer of the support piece, the lower protection net is fixed on the lower layer of the support piece, the outer side of the upper protection net is fixed with fixing rods through fixing pieces, and the fixing rods are horizontally arranged on the outer side of the upper protection net at intervals.
2. The roadway safety support device of claim 1, wherein the supporting pieces are formed by welding I-shaped steel, and the supporting pieces are adapted to the shape of the section of the roadway.
3. The roadway safety support device according to claim 1, wherein the number of the bases is two, and the two bases are respectively arranged on two sides of the roadway bottom plate close to the roadway wall.
4. The roadway safety support device of claim 1, wherein the protective net is fixed on the supporting piece through bolts, nuts and fixing pieces.
5. A roadway safety support device as claimed in any one of claims 1 to 4, wherein the fixing member has a vertical through hole at one end and a horizontally arranged threaded blind hole at the other end.
6. The roadway safety support device of claim 5, wherein the fixing rod has external threads at both ends thereof, and the fixing rod is connected with the fixing member threaded blind hole through the external threads.
7. The roadway safety support apparatus of claim 5, wherein the fixing member is rectangular or stepped in vertical cross section.
8. The roadway safety support device of claim 6, wherein the fixing rod is a cylindrical rod, or two ends of the fixing rod are cylindrical threaded rods, and the middle of the fixing rod is a flat rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021600272.2U CN212376665U (en) | 2020-08-03 | 2020-08-03 | Roadway safety support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021600272.2U CN212376665U (en) | 2020-08-03 | 2020-08-03 | Roadway safety support device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212376665U true CN212376665U (en) | 2021-01-19 |
Family
ID=74172715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021600272.2U Expired - Fee Related CN212376665U (en) | 2020-08-03 | 2020-08-03 | Roadway safety support device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212376665U (en) |
-
2020
- 2020-08-03 CN CN202021600272.2U patent/CN212376665U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105178206B (en) | Spliced-type shed tunnel | |
| CN106523003A (en) | Rigid-flexible coupling energy absorbing support technology suitable for deep mining roadway | |
| CN106320348A (en) | Opposite-pulling anchor cable supporting structure for adjacent deep foundation pits and construction method of opposite-pulling anchor cable supporting structure | |
| CN103758529A (en) | Coal mine gob-side entry retaining side supporting method | |
| CN108951441A (en) | Ecological shed tunnel structure for protecting high and steep slope off-road | |
| CN112464340A (en) | Rock burst roadway support design method based on comprehensive impact risk index evaluation | |
| CN104141503A (en) | Sharp inclination fully mechanized coal face open-off cut square supporting method | |
| CN205349380U (en) | Prevent whole crest truncation support of gob entry pucking | |
| CN212376665U (en) | Roadway safety support device | |
| CN210948737U (en) | Efficient and rapid tunneling roadway support facility for inclined small-section half-coal-rock roadway with thin coal seam | |
| CN108517795A (en) | Railroad bridge protecting canopy frame structure and its construction method | |
| CN219261097U (en) | Variable cross-section type rock anchor rod foundation for overhead transmission line | |
| CN206338082U (en) | A kind of anchor cable support apparatus | |
| CN208415124U (en) | A kind of railroad bridge protecting canopy frame structure | |
| CN213684189U (en) | Colliery protection hydraulic support equipment | |
| CN110145363B (en) | Roof control method for realizing transition from fully mechanized mining face caving to filling mining | |
| CN210049130U (en) | Mountain area mountain-by-mountain highway bellows shed tunnel | |
| CN110714418A (en) | Energy-consuming shed tunnel capable of generating plastic deformation and maintenance method thereof | |
| CN206487486U (en) | A kind of mining TBM safe temporary support device | |
| CN211113240U (en) | Energy-consuming shed tunnel capable of generating plastic deformation | |
| CN215890049U (en) | Mine tunnel supporting device | |
| CN218759943U (en) | Flexible protective net device for preventing rock falling from top of tunnel | |
| CN218786788U (en) | Small-size water-rock flow protective structure of high-speed railway tunnel entrance to a cave natural gully | |
| CN214403607U (en) | Mining is with tunnel supporting construction in broken area of argillaceous | |
| CN211038672U (en) | Rock burst flexible protection system with energy dissipation device |
Legal Events
| 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: 20210119 Termination date: 20210803 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |