CN209669718U - A kind of existing hangar tunnel combination stone cut off wall structure of rockfall protection - Google Patents
A kind of existing hangar tunnel combination stone cut off wall structure of rockfall protection Download PDFInfo
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- CN209669718U CN209669718U CN201920174169.7U CN201920174169U CN209669718U CN 209669718 U CN209669718 U CN 209669718U CN 201920174169 U CN201920174169 U CN 201920174169U CN 209669718 U CN209669718 U CN 209669718U
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Abstract
The utility model relates to a kind of existing hangar tunnels of rockfall protection to combine stone cut off wall structure, the existing hangar tunnel cantilever segment of existing hangar tunnel support cylinder and its top including high gradient slope side, it is that existing hangar tunnel bankets at the top of existing hangar tunnel cantilever segment, longitudinal stone cut off wall panel is laid at the top of existing hangar tunnel cantilever segment along line direction, it is provided with stone cut off wall floor, stone cut off wall panel bottom and stone cut off wall floor bottom between stone cut off wall panels outside and high gradient slope, covering is backfilled by original soil；The bottom outside of stone cut off wall floor sets horizontal and vertical floor anchoring anchor pole into high gradient slope；Inclined plate sets anchor cable into high gradient slope at the top of stone cut off wall floor.The utility model, which is used, handles both above rockfalls of wired shed tunnel top by the engineering structure that reinforced concrete member and prestress anchorage cable form, and avoids and removes existing this dangerous design scheme of hangar tunnel；Newly-built four lines hangar tunnel is overcome, security risk caused by the existing hangar tunnel of partial dismantling is needed to increase and the slow defect of construction speed.
Description
Technical field
The utility model belongs to transport development technical field, and in particular to a kind of existing hangar tunnel combination of rockfall protection
Stone cut off wall structure.
Background technique
Building railway unavoidably encounters rockfall, and in Southwestern China mountain area, high gradient slope topography is dangerously steep, rockfall
A large amount of distributions influence operation security very big.
Railway, the protection of highway rockfall mostly use brush slope, metal stone blocking net, cut-and-cover tunnel, gravity type stone cut off wall, peg board
The structures such as stone cut off wall, rail fence.The hangar tunnel of protection single-track railway wide security has been built in existing single-track railway, creates iron
It is 8 parallel station track station roadbeds that road is extended herein, is shown after falling rocks trajectory calculation, and falling rocks can cross single line hangar tunnel and pound to newly-built
Adjacent parallel station track, causes major hidden danger to traffic safety, is badly in need of a kind of method solution.
Summary of the invention
The purpose of the utility model is to provide a kind of existing hangar tunnels of rockfall protection to combine stone cut off wall structure, to solve
Not caused enough the security risk of existing single line hangar tunnel protective range increases problem.
The technology employed by the present utility model is
A kind of existing hangar tunnel combination stone cut off wall structure of rockfall protection, the existing hangar tunnel branch including high gradient slope side
Bearing column body and its existing hangar tunnel cantilever segment of top, existing hangar tunnel cantilever segment top are that existing hangar tunnel bankets, it is characterised in that:
Longitudinal stone cut off wall panel, stone cut off wall panels outside and height are laid at the top of existing hangar tunnel cantilever segment along line direction
It is provided with stone cut off wall floor, stone cut off wall panel bottom and stone cut off wall floor bottom between gradient slope, covering is backfilled by original soil.
Stone cut off wall floor is C-shaped, and bottom is level board, and top is inclined plate, is connected on the outside of level board and inclined plate by riser.
The part of horizontal plate and part inclined plate of stone cut off wall floor are backfilled by original soil and are covered.
The bottom outside of stone cut off wall floor sets horizontal and vertical floor anchoring anchor pole into high gradient slope.
Inclined plate sets anchor cable into high gradient slope at the top of stone cut off wall floor.
Stone cut off wall panel width 0.8m, height 10.0m.
The longitudinally disposed multiple tracks of stone cut off wall floor, longitudinal pitch 3.5m-4.5m.
The width 0.5m of stone cut off wall floor, height 0.8m.
The utility model has the advantage that
The utility model, which is used, handles rockfall protection question by the engineering structure that reinforced concrete member forms, and avoids
To block stone structure protection height low to building on the destruction of environment and abrupt slope for traditional brush slope, falling rocks can across the problems such as.
Detailed description of the invention
Fig. 1 is the existing shed tunnel top stone cut off wall cross-sectional view of rockfall protection.
In figure, 1- stone cut off wall panel, 2- floor are anchored anchor pole, and 3- stone cut off wall floor, 4- anchor cable, the existing hangar tunnel of 5- bankets,
The existing hangar tunnel cantilever segment of 6-, the existing hangar tunnel support cylinder of 7-.
Specific embodiment
The utility model is described in detail With reference to embodiment.
The utility model relates to a kind of existing hangar tunnels for rockfall protection to combine stone cut off wall structure, including high steep side
The existing hangar tunnel support cylinder 7 of slope side and its existing hangar tunnel cantilever segment 6 of top are existing at the top of existing hangar tunnel cantilever segment 6
Hangar tunnel bankets 5, longitudinal stone cut off wall panel 1 is laid at the top of existing hangar tunnel cantilever segment 6 along line direction, outside stone cut off wall panel 1
Stone cut off wall floor 3 is provided between side and high gradient slope, 1 bottom of stone cut off wall panel and 3 bottom of stone cut off wall floor are backfilled by original soil
Covering.
Stone cut off wall floor 3 is C-shaped, and bottom is level board, and top is inclined plate, is held in the mouth on the outside of level board and inclined plate by riser
It connects.The part of horizontal plate and part inclined plate of stone cut off wall floor 3 are backfilled by original soil and are covered.The bottom outside of stone cut off wall floor 3 is to height
Horizontal and vertical floor anchoring anchor pole 2, the tension anchor pole as stone cut off wall floor 3 are set in gradient slope.Stone cut off wall floor 3 pushes up
Portion's inclined plate sets anchor cable 4 into high gradient slope, applies prestressing force and reaches design value locking, using concrete enclosing anchor cable end.
Stone cut off wall panel 1 width 0.8m, height 10.0m.
The longitudinally disposed multiple tracks of stone cut off wall floor 3, longitudinal pitch 3.5m-4.5m.The width 0.5m of stone cut off wall floor 3, height
0.8m。
Based on the rockfall means of defence of existing hangar tunnel combination stone cut off wall structure, realized by following steps:
Step 1: longitudinal stone cut off wall panel 1 is laid along line direction at the top of existing hangar tunnel base position, is excavated first
The existing hangar tunnel of 1 position of stone cut off wall panel bankets 5, then in 1 position formwork erection of stone cut off wall panel, assembling reinforcement and pours coagulation
Soil carries out original soil backfill to its foundation pit after 1 concrete strength of stone cut off wall panel reaches design requirement；
Step 2: laying stone cut off wall floor 3 at the top of existing hangar tunnel base position, first excavation 3 position of stone cut off wall floor
Existing shed tunnel top bankets, and then performs floor anchoring anchor pole 2, in 3 position formwork erection of stone cut off wall floor, assembling reinforcement and pours mixed
Solidifying soil, carries out original soil backfill to its foundation pit after 3 concrete strength of stone cut off wall floor reaches design requirement；
Step 3: it carries out reserving prestressed anchor cable borehole in 3 top floor of stone cut off wall floor, perform anchor cable 4.
The utility model, which is used, handles both wired canopies by the engineering structure that reinforced concrete member and prestress anchorage cable form
The above rockfall at the top of hole, avoids and removes existing this dangerous design scheme of hangar tunnel；Newly-built four lines hangar tunnel is overcome, is needed
Security risk caused by the existing hangar tunnel of partial dismantling is wanted to increase and the slow defect of construction speed.
The content of the utility model is not limited to cited by embodiment, and those of ordinary skill in the art are practical new by reading this
Type specification and to any equivalent transformation that technical solutions of the utility model are taken, be the claim institute of the utility model
Cover.
Claims (8)
1. a kind of existing hangar tunnel of rockfall protection combines stone cut off wall structure, the existing hangar tunnel bearing including high gradient slope side
The existing hangar tunnel cantilever segment (6) of cylinder (7) and its top, existing hangar tunnel cantilever segment (6) top are that existing hangar tunnel bankets (5),
It is characterized in that:
Longitudinal stone cut off wall panel (1) is laid at the top of existing hangar tunnel cantilever segment (6) along line direction, stone cut off wall panel (1) is outside
It is provided between side and high gradient slope stone cut off wall floor (3), stone cut off wall panel (1) bottom and stone cut off wall floor (3) bottom are former
Earthen backfill covering.
2. a kind of existing hangar tunnel of rockfall protection according to claim 1 combines stone cut off wall structure, it is characterised in that:
Stone cut off wall floor (3) is C-shaped, and bottom is level board, and top is inclined plate, is connected on the outside of level board and inclined plate by riser.
3. a kind of existing hangar tunnel of rockfall protection according to claim 2 combines stone cut off wall structure, it is characterised in that:
The part of horizontal plate and part inclined plate of stone cut off wall floor (3) are backfilled by original soil and are covered.
4. a kind of existing hangar tunnel of rockfall protection according to claim 3 combines stone cut off wall structure, it is characterised in that:
The bottom outside of stone cut off wall floor (3) sets horizontal and vertical floor anchoring anchor pole (2) into high gradient slope.
5. a kind of existing hangar tunnel of rockfall protection according to claim 4 combines stone cut off wall structure, it is characterised in that:
Inclined plate sets anchor cable (4) into high gradient slope at the top of stone cut off wall floor (3).
6. a kind of existing hangar tunnel of rockfall protection according to claim 5 combines stone cut off wall structure, it is characterised in that:
Stone cut off wall panel (1) width 0.8m, height 10.0m.
7. a kind of existing hangar tunnel of rockfall protection according to claim 6 combines stone cut off wall structure, it is characterised in that:
Stone cut off wall floor (3) longitudinally disposed multiple tracks, longitudinal pitch 3.5m-4.5m.
8. a kind of existing hangar tunnel of rockfall protection according to claim 7 combines stone cut off wall structure, it is characterised in that:
The width 0.5m of stone cut off wall floor (3), height 0.8m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920174169.7U CN209669718U (en) | 2019-01-31 | 2019-01-31 | A kind of existing hangar tunnel combination stone cut off wall structure of rockfall protection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920174169.7U CN209669718U (en) | 2019-01-31 | 2019-01-31 | A kind of existing hangar tunnel combination stone cut off wall structure of rockfall protection |
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| CN209669718U true CN209669718U (en) | 2019-11-22 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736215A (en) * | 2019-01-31 | 2019-05-10 | 中铁第一勘察设计院集团有限公司 | Rockfall means of defence and its existing hangar tunnel combine stone cut off wall structure |
| CN111636894A (en) * | 2020-05-30 | 2020-09-08 | 中铁十八局集团有限公司 | Open cut tunnel structure of high and steep slope tunnel portal and method for preventing avalanche falling of rocks |
-
2019
- 2019-01-31 CN CN201920174169.7U patent/CN209669718U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109736215A (en) * | 2019-01-31 | 2019-05-10 | 中铁第一勘察设计院集团有限公司 | Rockfall means of defence and its existing hangar tunnel combine stone cut off wall structure |
| CN111636894A (en) * | 2020-05-30 | 2020-09-08 | 中铁十八局集团有限公司 | Open cut tunnel structure of high and steep slope tunnel portal and method for preventing avalanche falling of rocks |
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