CN205617396U - Close on existing railway line construction protection structure - Google Patents
Close on existing railway line construction protection structure Download PDFInfo
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- CN205617396U CN205617396U CN201620354071.6U CN201620354071U CN205617396U CN 205617396 U CN205617396 U CN 205617396U CN 201620354071 U CN201620354071 U CN 201620354071U CN 205617396 U CN205617396 U CN 205617396U
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- line
- fender pile
- existing railway
- construction
- existing
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Abstract
The utility model relates to a close on existing railway line construction protection structure. When the construction of neighbouring existing railway line, adopt bored pile to protect more, ground water level higher, pass whitewashed fine sand layer when thick, excavation pore -forming difficulty often takes place to gush husky phenomenon, arouses that the road bed sinks, threatens existing line operation safety. The utility model discloses installing the cable according to the railway roadbed characteristics on digging the hole fender pile, forming a self -balancing system, be jian zhi or half cantilever state to the fender pile by cantilever state change, the bored pile below ground anchorage length that can significantly reduce reduces the construction degree of difficulty and risk, saving investment, the installation is simple, and the atress is clear and definite, connects reliably, can effectively solve the embankment excavation back soil body protection problem in the existing line construction of closing on, guarantees existing line operation safety.
Description
Technical field
This utility model relates to railway engineering technology field, is specifically related to one and closes on existing railway line construction protection structure.
Background technology
Two wires is built as increased in construction of railway project, the situation increasing the neighbouring existing railway line constructions such as culvert grade separation is more, existing railway is generally electric railway, big machinery is prohibitted the use of in distance contact net certain limit, for ensureing the most wired operation security in construction, before excavation subgrade soil, many employing caissons protect, it is more to meet build-in requirement that caisson gos deep into below ground when protecting the soil body and being higher, higher in level of ground water, through fine sand layer thicker time, excavation pore-forming difficulty, often gush husky phenomenon, cause Subgrade Subsidence, jeopardize the most wired operation security.
Summary of the invention
The purpose of this utility model is to provide one and closes on existing railway line construction protection structure, effectively solves to close in the most wired construction soil body protection question after embankment excavation.
The technical scheme that this utility model is used is:
One closes on existing railway line construction protection structure, it is characterised in that:
Including fender pile, drag-line, anchor slab and anchorage；
Fender pile is positioned at the excavation side of existing railway embankment, and anchor slab is positioned at the offside of fender pile, is provided through the drag-line of existing railway embankment between fender pile and anchor slab, and fender pile and anchor slab are all fixed on by anchorage in end, drag-line two ends.
Fender pile is deposited reinforced concrete pile；
Anchor slab is prefabricated reinforced concrete structure；
The circular hole through drag-line all it is reserved with on fender pile and anchor slab.
This utility model has the advantage that
This utility model installs drag-line according to railway bed feature on borehole fender pile, form a kind of self equilibrium systems, fender pile is changed into freely-supported or semi-cantilever state by cantilever position, caisson below ground anchorage length can be greatly reduced, reduce difficulty of construction and risk, reduce investment outlay, this utility model is installed simple simultaneously, and stress is clear and definite, connects reliable, can effectively solve to close in the most wired construction soil body protection question after embankment excavation, it is ensured that the most wired operation security.
Accompanying drawing explanation
Fig. 1 is structure section figure.
Fig. 2 is structure Section A-A figure.
Fig. 3 is structure section B-B figure.
In figure, 1-fender pile, 2-drag-line, 3-anchor slab, 4-anchorage, 5-existing railway, 6-excavates body, 7-existing railway embankment.
Detailed description of the invention
Below in conjunction with detailed description of the invention, this utility model is described in detail.
The one that this utility model relates to closes on existing railway line construction protection structure, including fender pile 1, drag-line 2, anchor slab 3 and anchorage 4.Fender pile 1 is positioned at the excavation side of existing railway embankment 7, and anchor slab 3 is positioned at the offside of fender pile 1, is provided through the drag-line 2 of existing railway embankment 7 between fender pile 1 and anchor slab 3, and fender pile 1 and anchor slab 3 are all fixed on by anchorage 4 in end, drag-line 2 two ends.
Fender pile 1 is deposited reinforced concrete pile；Anchor slab 3 is prefabricated reinforced concrete structure；The circular hole through drag-line 2 all it is reserved with on fender pile 1 and anchor slab 3.
During construction:
1, according to design caisson, anchor slab position, drilling and forming hole in existing railway embankment 7 body, wear in pore-forming and put drag-line 2.
2, need to excavate side at existing railway embankment 7 and implement manually digging hole, dig while protect, notice that reserved drag-line 2, through hole, installs steel reinforcement cage, concrete perfusion fender pile 1.
3, prefabricated reinforced concrete anchor slab, excavates anchor slab foundation ditch on side slope of embankment, installs anchor slab.
4, anchorage 4 is installed on fender pile 1, drag-line 2 is fixed with fender pile 1.Drag-line 2 through anchor slab 3, stretch-draw drag-line 2, anchor slab side anchor tool 4 is installed and anchors.
5, the needs excavation soil body is excavated.
Content of the present utility model is not limited to cited by embodiment, the conversion of any equivalence that technical solutions of the utility model are taked by those of ordinary skill in the art by reading this utility model description, is claim of the present utility model and is contained.
Claims (2)
1. one kind is closed on existing railway line construction protection structure, it is characterised in that:
Including fender pile (1), drag-line (2), anchor slab (3) and anchorage (4)；
Fender pile (1) is positioned at the excavation side of existing railway embankment (7), anchor slab (3) is positioned at the offside of fender pile (1), being provided through the drag-line (2) of existing railway embankment (7) between fender pile (1) and anchor slab (3), fender pile (1) and anchor slab (3) are all fixed on by anchorage (4) in drag-line (2) end, two ends.
One the most according to claim 1 closes on existing railway line construction protection structure, it is characterised in that:
Fender pile (1) is deposited reinforced concrete pile；
Anchor slab (3) is prefabricated reinforced concrete structure；
The circular hole through drag-line (2) all it is reserved with on fender pile (1) and anchor slab (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620354071.6U CN205617396U (en) | 2016-04-26 | 2016-04-26 | Close on existing railway line construction protection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620354071.6U CN205617396U (en) | 2016-04-26 | 2016-04-26 | Close on existing railway line construction protection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205617396U true CN205617396U (en) | 2016-10-05 |
Family
ID=57028257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620354071.6U Active CN205617396U (en) | 2016-04-26 | 2016-04-26 | Close on existing railway line construction protection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205617396U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968139A (en) * | 2017-03-09 | 2017-07-21 | 中铁十九局集团有限公司 | The construction method of railway bed supporting in undercrossing tunnel jacking framed bridge jack-in process |
| GB2623610A (en) * | 2023-05-18 | 2024-04-24 | Hypertunnel Ip Ltd | Method and system of stabilising a landform |
-
2016
- 2016-04-26 CN CN201620354071.6U patent/CN205617396U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106968139A (en) * | 2017-03-09 | 2017-07-21 | 中铁十九局集团有限公司 | The construction method of railway bed supporting in undercrossing tunnel jacking framed bridge jack-in process |
| CN106968139B (en) * | 2017-03-09 | 2018-08-24 | 中铁十九局集团有限公司 | The construction method of railway bed supporting in undercrossing tunnel jacking framed bridge jack-in process |
| GB2623610A (en) * | 2023-05-18 | 2024-04-24 | Hypertunnel Ip Ltd | Method and system of stabilising a landform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |