CN218373415U - Administer structure of large-scale extra-high position danger rock crowd in tunnel portal top - Google Patents
Administer structure of large-scale extra-high position danger rock crowd in tunnel portal top Download PDFInfo
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- CN218373415U CN218373415U CN202222744347.XU CN202222744347U CN218373415U CN 218373415 U CN218373415 U CN 218373415U CN 202222744347 U CN202222744347 U CN 202222744347U CN 218373415 U CN218373415 U CN 218373415U
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Abstract
The utility model belongs to the protective measure protection field of dangerous rock mass, discloses a structure for managing large-scale extra-high position dangerous rock mass above tunnel portal, including the rock mass, be provided with the initiative protection network on the rock mass and near the top position, the rock mass middle part is provided with a mouthful curtain formula protection machanism, be provided with passive protection network protection machanism on the rock mass and above the tunnel portal, a mouthful curtain formula protection machanism includes the first base that sets up on the rock mass, the first base top is provided with first steel column, first steel column top one side is connected with first pull-up stock through first pull-up anchor rope, and first pull-up stock one end is pegged graft on the rock mass; first steel column top opposite side is connected with first annular net and two hexagonal net that twist, the utility model has the advantages of the efficiency of construction is fast, construction cost is low, the security of construction safety has improved the convenience of using.
Description
Technical Field
The utility model relates to a safeguard measure protection field of danger rock crowd, more specifically says, relates to a structure of administering large-scale special high-order danger rock crowd in tunnel portal top.
Background
With the continuous push of the western development strategy, the transportation industry in the western region is developed vigorously. The western region of China is a mountain and heavy hill region, the terrain is dangerous, and mountainous regions are densely distributed, so a traffic line is built in the region, the safety threat of dangerous rock falling rocks at the tunnel entrance section to the line is a problem which needs to be solved.
However, the technical method only has the function of intercepting dangerous rockfall by the single-layer protective net, and once the protective net is damaged, secondary disasters are easily caused, so the applicant proposes a structure for treating large-scale extra-high-level dangerous rock groups above a tunnel portal to solve the existing problems.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
To the problem that exists among the prior art, the utility model aims to provide an administer the structure of the large-scale special high-order dangerous detritus in tunnel portal top has that the efficiency of construction is fast, construction cost is low, the security of construction safety is high advantage, has improved the convenience of using.
2. Technical scheme
In order to solve the problem, the utility model adopts the following technical proposal.
The utility model provides a administer structure of large-scale special high-order dangerous detritus in tunnel portal top, includes the rock mass, on the rock mass and be close to the top position and be provided with the initiative protection network, the rock mass middle part is provided with opens a mouthful curtain formula protection machanism, on the rock mass and be located the tunnel portal top and be provided with passive protecting network protection machanism.
Furthermore, the split curtain type protection mechanism comprises a first base arranged on the rock mass, a first steel column is arranged at the top end of the first base, one side of the top end of the first steel column is connected with a first pull-up anchor rod through a first pull-up anchor rope, and one end of the first pull-up anchor rod is inserted into the rock mass;
the other side of the top of the first steel column is connected with a first annular net and a twisted hexagonal net, the other ends of the first annular net and the twisted hexagonal net are connected with a rock body through a deformed steel anchor rod, and the twisted hexagonal net is located between the first annular net and the surface of the outer wall of the rock body.
Furthermore, an energy dissipation device is connected in series with the middle of the first upper pull anchor rope.
Further, the passive protecting net protection mechanism comprises a second base arranged on the rock mass, the top end of the second base is movably connected with a second steel column, one side of the top end of the second steel column is connected with a second pull-up anchor rod through a second pull-up anchor rope, the second pull-up anchor rod is inserted and fixed on the rock mass above the second base,
the other side of the top end of the second steel column is connected with a second annular net and a grid net, the bottom ends of the second annular net and the grid net are connected with the side wall of the second base,
the second endless wire is located outside the grille wire.
Furthermore, the top end of the second base is movably connected with the bottom end of the second steel column through a shaft pin.
Further, the horizontal positions of the first annular net and the double-twisted hexagonal net are connected through a secondary support rope.
Further, the inclination angle between the upper surface of the second pull-up anchor rod and the upper surface of the inserted rock body is 75-105 degrees.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
the utility model discloses can make things convenient for the initiative protection network, open a mouthful curtain formula protection machanism and passive protecting network protection machanism adhere to fix on the rock mass, earlier through the initiative protection network, can protect the rubble on rock mass upper portion, thereby can play preliminary guard action, then through opening a mouthful curtain formula protection machanism, can be to the abrupt domatic all-round that carries on of whole tunnel mouth top, thereby can make tunnel mouth top rock mass can not bounce after collapsing, through setting up passive protecting network protection machanism on tunnel open cut tunnel upper portion after that, thereby can intercept the dangerous rock that guides down, guarantee below tunnel construction safety, the utility model has the advantages of the efficiency of construction is fast, construction cost is low, construction safety is high, has improved the convenience of using.
Drawings
FIG. 1 is a schematic view of the comprehensive treatment structure of the present invention;
fig. 2 is a schematic view of the structure of the open curtain type net of the present invention;
fig. 3 is a schematic view of the passive protective screening structure of the present invention.
The numbering in the figures illustrates:
1. a rock mass; 2. a flared curtain type guard mechanism; 201. a first base; 202. a first steel column; 203. a first pull-up anchor line; 204. a first pull-up anchor; 205. an energy dissipator; 206. a first endless web; 207. a twisted hexagonal network; 208. a deformed steel bar anchor rod; 3. a passive protective net protection mechanism; 301. a second base; 302. a second steel column; 303. a second pull-up anchor line; 304. a second pull-up anchor; 305. a second endless web; 306. a grid net; 4. an active protective net; 5. a tunnel portal.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and the products not described in the present invention are already products, and can be obtained from the market, and all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the protection scope of the present invention based on the embodiments of the present invention.
Example (b):
referring to fig. 1, a structure for treating large-scale extra-high-level dangerous rock groups above a tunnel portal comprises a rock mass 1, wherein a driving protective net 4 is arranged on the rock mass 1 and close to the top end, a split curtain type protective mechanism 2 is arranged in the middle of the rock mass 1, and a driven protective net protective mechanism 3 is arranged on the rock mass 1 and above a tunnel portal 5;
through first, two bases are fixed on the rock mass, can make things convenient for initiative protection network 4, open-mouthed curtain formula protection machanism 2 and passive protection network protection machanism 3 adhere to fixedly, then through initiative protection network 4, can protect the rubble on 1 upper portion of rock mass, thereby can play preliminary guard action, then through open-mouthed curtain formula protection machanism 2, can carry out the total cover to whole precipitous domatic, thereby can make tunnel portal top rock mass can not bounce after caving, then through setting up passive protection network protection machanism 3 on tunnel open cut tunnel upper portion, thereby can intercept the dangerous rock that the guide got off, guarantee below tunnel construction safety, and this product has that the efficiency of construction is fast, low in construction cost, the high advantage of construction safety, the convenience of use has been improved.
Referring to fig. 2, the opening curtain type protection mechanism 2 includes a first base 201 disposed on the rock mass 1, a first steel column 202 is disposed at the top end of the first base 201, one side of the top end of the first steel column 202 is connected with a first pull-up anchor rod 204 through a first pull-up anchor rope 203, and one end of the first pull-up anchor rod 204 is inserted into the rock mass 1;
the other side of the top of the first steel column 202 is connected with a first annular net 206 and a twisted hexagonal net 207, the other ends of the first annular net 206 and the twisted hexagonal net 207 are connected with the rock mass 1 through a deformed steel bar anchor rod 208, and the twisted hexagonal net 207 is located between the first annular net 206 and the outer wall surface of the rock mass 1;
through fixing the first base 201 in the curtain-type protection machanism 2 that opens on rock mass 1, first steel column 202 lower extreme is fixed on it promptly, can be through first steel column 202 again to first pull-up anchor rope 203, first looped netcom 206 and two hank hexagon nets 207 install, then through first pull-up anchor pole 204 on first pull-up anchor rope 203, can fix first pull-up anchor rope 203 one end on rock mass 1, thereby can pull reinforcing pulling force to first steel column 202, through a plurality of screw-thread steel stock 208, can fix first looped netcom 206 and two hank hexagon nets 207 bottom on rock mass 1, and under the support of first steel column 202, make first looped netcom 206 and two hank hexagon nets 207 apart from certain distance of rock mass 1 outer wall, and then can make first looped netcom 206 and two hexagon nets 207 whole steep domatic and carry out the full coverage, thereby can make tunnel portal top can not bounce after the rock mass collapses, can play dual protection effect again simultaneously, can not cause the secondary disaster.
Referring to fig. 2, energy dissipaters 205 (made of existing products, such as tension springs) are connected in series in the middle of the first upper pulling anchor rope 203, so that a tension pulling function is achieved, the first upper pulling anchor rope 203 is prevented from being broken, and the use safety of the first ring net 206 and the twisted hexagonal net 207 is improved.
Referring to fig. 3, the passive protective net protection mechanism 3 includes a second base 301 disposed on the rock mass 1, the top end of the second base 301 is movably connected with a second steel column 302, one side of the top end of the second steel column 302 is connected with a second pull-up anchor rod 304 through a second pull-up anchor rope 303, the second pull-up anchor rod 304 is fixedly inserted into the rock mass 1 above the second base, the other side of the top end of the second steel column 302 is connected with a second annular net 305 and a grid net 306, and the bottom ends of the second annular net 305 and the grid net 306 are connected with the side wall of the second base 301;
second looped netowrk 305 is located the grid net 306 outside, through second base 301 in passive protecting wire net protection machanism 3, can fix on rock mass 1, can install second pull-up anchor rope 303 through second steel column 302 again, pull-up anchor rope 303 on through the second, can cooperate the second to pull-up anchor pole 304, thereby can pull second steel column 302, and then can make second steel column 302 prop up second looped netowrk 305 and grid net 306, so that can make the dangerous rock mass that the guide got off on rock mass 1 intercept, guarantee below tunnel construction safety.
Referring to fig. 3, the top end of the second base 301 is movably connected to the bottom end of the second steel column 302 through a shaft pin, so that the second steel column 302 can swing conveniently, and the impact force of the second endless wire 305 and the grid wire 306 bearing dangerous rocks can be offset.
Referring to fig. 2, the horizontal positions of the first ring network 206 and the twisted-pair hexagonal network 207 are connected by a secondary support rope (or steel wire rope), which facilitates the connection of the first ring network 206 and the twisted-pair hexagonal network 207 and improves the stability of the use of the two.
Referring to fig. 3, the inclination angle of the upper surface of the second pull-up anchor rod 304 to the upper surface of the inserted rock mass 1 is 75-105 °, which improves the stability of the second pull-up anchor rod 304 installed on the rock mass 1.
When in use: the active protective net 4, the split curtain type protective mechanism 2 and the passive protective net protective mechanism 3 can be conveniently attached and fixed by fixing the first base and the second base on the rock mass 1, then the broken stones on the upper part of the rock mass 1 can be protected by the active protective net 4, so that the primary protection effect can be achieved, then the whole steep slope can be completely covered by the split curtain type protective mechanism 2, so that the rock mass above the tunnel mouth cannot bounce after caving, and then the guided dangerous rock mass can be intercepted by arranging the passive protective net protective mechanism 3 on the upper part of the tunnel open cut tunnel, so that the construction safety of the tunnel below is ensured, and the product has the advantages of high construction efficiency, low construction cost and high construction safety, and the use convenience is improved;
through the first base 201 in the split curtain type protection mechanism 2, the first steel column 202 can be fixed on the rock mass 1, the first pull-up anchor rope 203, the first annular net 206 and the twisted-pair hexagonal net 207 can be installed through the first steel column 202, then through the first pull-up anchor rod 204 on the first pull-up anchor rope 203, one end of the first pull-up anchor rope 203 can be fixed on the rock mass 1, so that the first steel column 202 can be pulled, through the threaded steel anchor rod 208, the bottom ends of the first annular net 206 and the twisted-pair hexagonal net 207 can be fixed on the rock mass 1, and under the support of the first steel column 202, the first annular net 206 and the twisted-pair hexagonal net 207 can be separated from the outer wall of the rock mass 1 by a certain distance, so that the whole steep overall coverage of the first annular net 206 and the twisted-pair hexagonal net 207 can be realized, so that the rock mass above the tunnel portal cannot bounce after the tunnel portal is collapsed, and meanwhile, the double protection effect cannot cause secondary disasters, through the pull energy dissipation device 205, the tension and pull-up pull-down function can be realized, the breakage of the first pull anchor rope 203 is improved, and the use of the first twisted-pair hexagonal net 207 and the slope surface is improved;
through the second base 301 in the passive protective net protection mechanism 3, the second steel column can be fixed on the rock mass 1, the second pull-up anchor rope 303 can be installed through the second steel column 302, the second pull-up anchor rope 303 can be matched with the second pull-up anchor rod 304 through the second pull-up anchor rope 303, so that the second steel column 302 can be pulled, the second steel column 302 can further support the second annular net 305 and the grid net 306, dangerous rock masses guided from the rock mass 1 can be intercepted, and the construction safety of a lower tunnel can be ensured.
The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (7)
1. The utility model provides a administer structure of large-scale special high-order dangerous detritus in tunnel portal top, includes rock mass (1), on rock mass (1) and be close to the top position and be provided with initiative protection network (4), its characterized in that: the tunnel portal protective device is characterized in that a portal curtain type protective mechanism (2) is arranged in the middle of the rock body (1), and a passive protective net protective mechanism (3) is arranged on the rock body (1) and above the tunnel portal.
2. The structure for treating large extra-high-level dangerous rock groups above a tunnel portal according to claim 1, wherein: the split curtain type protection mechanism (2) comprises a first base (201) arranged on the rock body (1), a first steel column (202) is arranged at the top end of the first base (201), one side of the top end of the first steel column (202) is connected with a first pull-up anchor rod (204) through a first pull-up anchor rope (203), and one end of the first pull-up anchor rod (204) is inserted into the rock body (1);
the other side of the top of the first steel column (202) is connected with a first annular net (206) and a twisted hexagonal net (207), the other ends of the first annular net (206) and the twisted hexagonal net (207) are connected with the rock body (1) through a deformed steel bar anchor rod (208), and the twisted hexagonal net (207) is located between the first annular net (206) and the outer wall surface of the rock body (1).
3. The structure for treating large extra-high-level dangerous rock groups above a tunnel portal according to claim 2, wherein: and the energy dissipater (205) is connected in series in the middle of the first upper pulling anchor rope (203).
4. The structure for treating large extra-high-level dangerous rock groups above a tunnel portal according to claim 1, wherein: the passive protecting net protection mechanism (3) comprises a second base (301) arranged on the rock mass (1), the top end of the second base (301) is movably connected with a second steel column (302), one side of the top end of the second steel column (302) is connected with a second pull-up anchor rod (304) through a second pull-up anchor rope (303), the second pull-up anchor rod (304) is fixedly inserted into the rock mass (1) above the second base,
the other side of the top end of the second steel column (302) is connected with a second ring-shaped net (305) and a grid net (306), the bottom ends of the second ring-shaped net (305) and the grid net (306) are connected with the side wall of the second base (301),
the second endless wire (305) is located outside of a grid wire (306).
5. The structure of administering large-scale extra-high position dangerous rock mass above tunnel portal according to claim 4, characterized in that: the top end of the second base (301) is movably connected with the bottom end of the second steel column (302) through a shaft pin.
6. The structure for treating large-scale extra-high-position dangerous rock groups above a tunnel portal according to claim 2, characterized in that: the horizontal positions of the first annular net (206) and the double-twisted hexagonal net (207) are connected through a secondary support rope.
7. The structure for treating large extra-high-level dangerous rock groups above a tunnel portal according to claim 4, wherein: the inclination angle between the upper surface of the second pull-up anchor rod (304) and the upper surface of the inserted rock body (1) is 75-105 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222744347.XU CN218373415U (en) | 2022-10-19 | 2022-10-19 | Administer structure of large-scale extra-high position danger rock crowd in tunnel portal top |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222744347.XU CN218373415U (en) | 2022-10-19 | 2022-10-19 | Administer structure of large-scale extra-high position danger rock crowd in tunnel portal top |
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| Publication Number | Publication Date |
|---|---|
| CN218373415U true CN218373415U (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222744347.XU Active CN218373415U (en) | 2022-10-19 | 2022-10-19 | Administer structure of large-scale extra-high position danger rock crowd in tunnel portal top |
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| Country | Link |
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| CN (1) | CN218373415U (en) |
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- 2022-10-19 CN CN202222744347.XU patent/CN218373415U/en active Active
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