CN204825963U - Stride single track ground of formula hypomere track wall structure - Google Patents
Stride single track ground of formula hypomere track wall structure Download PDFInfo
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- CN204825963U CN204825963U CN201520489039.4U CN201520489039U CN204825963U CN 204825963 U CN204825963 U CN 204825963U CN 201520489039 U CN201520489039 U CN 201520489039U CN 204825963 U CN204825963 U CN 204825963U
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Abstract
The utility model relates to a monorail transit the technical of the orbit field, concretely relates to stride single track ground of formula hypomere track wall structure. It includes: the prefabricated wall in upper portion and cast -in -place wall in lower part and foundation structure, wherein, the prefabricated wall in upper portion is prefabricated construction, and inside reinforcing bar downwardly extending just leans out prefabricated construction's lower surface, the cast -in -place wall in lower part is the structure of cast in situs, its inside containing the prefabricated wall in upper portion inside reinforcing bar, the cast -in -place wall in lower part is visited in the foundation structure, and with the structure is pour to as an organic wholeization of foundation structure. The utility model discloses do not need the both sides buttress, behind the cancellation buttress, buttress occupation space is left out in this technique under traditional track roof beam circumstances, and the tunnel terminal surface reduces.
Description
Technical field
The utility model relates to monorail transit railway technology field, is specifically related to straddle monorail underground section track wall construction.
Background technology
Straddle-type monorail system is that vehicle straddles a kind of novel rail mode that rail beam runs, and its main feature is that investment cost is low, the construction period is short, adaptable, ambient influnence is little, is suitable for the medium sized city that China is vast.Although straddle-type monorail is based on overhead bridge structure, in downtown urban land, especially bustling location, urban district, by the restriction of ground space, local is entered underground by straddle-type monorail.After straddle-type monorail enters underground, in order to ensure the accuracy of manufacture of track, the form of structure of buttress and pre-track beam is have employed in current tunnel, this form of structure makes train load and rail beam self Load concentration act on buttress, cause buttress key dimension large, thus require that the cross dimensions in tunnel is comparatively large, improve construction costs, reduce the economy of straddle-type monorail.
Utility model content
Embodiment of the present utility model provides a kind of straddle monorail underground section track wall construction, under the prerequisite meeting the track accuracy of manufacture, dispersion train load and dead load load can be solved, avoid all Load concentrations to act on a pier foundation, reduce the problem of tunnel end face.
There is provided a kind of straddle monorail underground section track wall construction according to an aspect of the present utility model, it comprises: top dry wall and bottom cast-in-place wall and foundation structure; Wherein, described top dry wall is precast construction, and inner reinforcing bar extends downwards and leans out the soffit of described precast construction; Described bottom cast-in-place wall is the structure of cast in situs, and its inside comprises the described inner reinforcing bar of described top dry wall, and described bottom cast-in-place wall probes in described foundation structure, and pouring structure integrated with described foundation structure.
In certain embodiments, be preferably, along the longitudinal extension direction of described track wall construction, described top dry wall is in series by multiple tops dry wall subelement, and the length of described top dry wall subelement is within the scope of 1 meter-20 meters.
In certain embodiments, be preferably, arrange ater-casting between adjacent two described top dry wall subelements, described ater-casting is concrete placings structure.
In certain embodiments, be preferably, the length of described ater-casting is within the scope of 600-1200 millimeter.
In certain embodiments, be preferably, the middle part of described ater-casting arranges deformation joint, and the length of described deformation joint is within the scope of 20-50 millimeter.
The straddle monorail underground section track wall construction provided by embodiment of the present utility model, compared with prior art, top dry wall shifts to an earlier date outside hole prefabricated, the cast in situs in hole of bottom cast-in-place wall and foundation structure, top dry wall and bottom dry wall adopt same inner reinforcing bar, and overall structure is solid.And track wall is string configuration, and build with infrastructure is structure-integrated, through straddle type train on track wall, track wall entirety is stressed, pressure dissipation.Avoid conventional rails erection on the buttress of both sides, train process, both sides buttress bears the situation of whole train load and dead load.On the other hand, track wall force dispersion, stressed is also main mainly with pressure, and moment of flexure is very little, therefore significantly reduces the quantity of reinforcement in track portion within the walls.Compare, in the middle part of conventional rails beam, moment of flexure is comparatively large, and need heavy reinforcement, reinforcing bar use cost is large.The more important thing is, track wall is integrated with foundation structure just builds, and does not need both sides buttress, and after cancelling buttress, in conventional rails beam situation, buttress takes up room and is omitted in this technique, and tunnel end face reduces.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, discuss to the accompanying drawing used required in embodiment or description of the prior art below, obviously, only embodiments more of the present utility model in the technical scheme be described by reference to the accompanying drawings, for those of ordinary skills, under the prerequisite not paying creative work, other embodiment and accompanying drawing thereof can also be obtained according to these accompanying drawing illustrated embodiments.
Fig. 1 is that in the utility model embodiment, tunnel inner orbit wall construction indulges end view;
Fig. 2 is tunnel inner orbit wall and basic connection diagram in the utility model embodiment;
Fig. 3 is the connection diagram of adjacent upper dry wall subelement in the utility model embodiment.
Note: 1 top dry wall; 2 ater-castings; 3 deformation joints; 4 foundation structures; 5 reinforcing bars; 6 bottom cast-in-place walls.
Detailed description of the invention
Carry out clear complete description below with reference to the technical scheme of accompanying drawing to each embodiment of the utility model, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiment.Based on the embodiment in the utility model, other embodiments all that those of ordinary skill in the art obtain under the prerequisite not needing creative work, all in the scope that the utility model is protected.
In considering that current straddle monorail underground section is built, rail beam is placed on the buttress of both sides, train is through out-of-date, the load of train and self load of rail beam all act on buttress, cause buttress load large, the volume of buttress increases, the problem that tunnel internal space is strengthened, and the utility model provides a kind of straddle monorail underground section track wall construction.
First, this straddle monorail underground section track wall construction comprises: top dry wall and bottom cast-in-place wall and foundation structure; Wherein, top dry wall is precast construction, and inner reinforcing bar extends downwards and leans out the soffit of precast construction; Bottom cast-in-place wall is the structure of cast in situs, and its inside comprises the inside reinforcing bar of top dry wall, and bottom cast-in-place wall probes in foundation structure, and pouring structure integrated with foundation structure.
Top dry wall shifts to an earlier date outside hole prefabricated, the cast in situs in hole of bottom cast-in-place wall and foundation structure, and top dry wall and bottom dry wall adopt same inner reinforcing bar, and overall structure is solid.And track wall is string configuration, and build with infrastructure is structure-integrated, through straddle type train on track wall, track wall entirety is stressed, pressure dissipation.Avoid conventional rails erection on the buttress of both sides, train process, both sides buttress bears the situation of whole train load and dead load.On the other hand, track wall force dispersion, stressed is also main mainly with pressure, and moment of flexure is very little, therefore significantly reduces the quantity of reinforcement in track portion within the walls.Compare, in the middle part of conventional rails beam, moment of flexure is comparatively large, and need heavy reinforcement, reinforcing bar use cost is large.The more important thing is, track wall is integrated with foundation structure just builds, and does not need both sides buttress, and after cancelling buttress, in conventional rails beam situation, buttress takes up room and is omitted in this technique, and tunnel end face reduces.
Next this technology is described in detail:
Straddle monorail underground section track wall construction, as Figure 1-3, it comprises track wall and foundation structure 4, and track wall is absorbed in foundation structure 4.Track wall more than foundation structure 4 contact surface is called top dry wall 1, and the track wall below contact surface is called bottom cast-in-place wall 6.Wherein, top dry wall 1 is precast construction, prefabricated outside hole, and RPC can be adopted prefabricated, also can adopt reinforced concrete prefabricated.Reinforcing bar 5 is set in top dry wall 1, and this reinforcing bar 5 reserved, make reinforcing bar 5 (many) to downward-extension and lean out the soffit of precast construction, below the base surface probeing into foundation structure 4, its outside pouring reinforcement concrete, being called bottom cast-in-place wall 6, when building bottom cast-in-place wall 6, building foundation structure 4 simultaneously.
Wherein, top dry wall 1 adopts prefabricate, and along the longitudinal extension direction of track wall construction, top dry wall 1 is in series by multiple tops dry wall 1 subelement.Prefabricated in advance outside the equal hole of top dry wall 1 subelement, every segment length is determined according to Linear Control and execution conditions, according to engineering experience value, can be controlled within the scope of 1 meter-20 meters.
Arrange ater-casting 2 between adjacent two top dry wall 1 subelements, ater-casting 2 should adopt ungauged regions concrete placings, to conscientiously clearing up, pick cutter in the seam of building, wash away before building.
According to engineering experience value, the length of this ater-casting 2 should be arranged within the scope of 600-1200 millimeter.
According to engineering experience value, the middle part of ater-casting 2 arranges deformation joint 3, and the length of deformation joint 3 is within the scope of 20-50 millimeter.
For above-mentioned straddle monorail underground section track wall construction, its concrete construction method comprises:
Step 101, makes top dry wall outside hole in advance;
Prefabricated in advance, the operating space in hole can be reduced, improve efficiency of construction, and the prefabricated clean and tidy degree also improving prefabricated component outside hole, for subsequent field builds minimizing cleaning work.
Step 102, determines that in hole foundation structure builds hole;
Foundation structure is for supporting the dry wall on top, and therefore, its position and size all need to set as the case may be.Bottom due to dry wall is deep in foundation structure, and therefore the degree of depth of foundation structure needs in conjunction with these needs and designs.
Step 103, by top dry wall installation in position in hole, the inside reinforcing bar of reserved top dry wall, and make it to downward-extension and be deep into build foundation structure build in hole;
Top dry wall and bottom cast-in-place wall adopt bar connecting, improve the stability connected, avoid stressed in be burdened with structural distortion.
Step 104, in hole, bottom cast-in-place wall and foundation structure are synchronously built in scene.
Bottom dry wall, foundation structure are the structure that steel concrete is built.
In order to improve prefabricated efficiency, top dry wall is segmental structure, and top dry wall is in series by multiple tops dry wall subelement, so,
Step 101 is decomposed into following steps:
Step 1011, prefabricated multiple tops dry wall subelement outside hole, the length of all tops dry wall subelement not etc., all within the scope of 1 meter-20 meters; Top dry wall subelement is the precast construction of RPC or reinforced concrete prefabricated structure
The length of each top dry wall subelement is determined according to Linear Control and execution conditions.
Dry wall subelement serial connection in all tops, in hole, is top dry wall by step 1012.
In hole, top dry wall subelement is connected, be more conducive to the construction of narrow space in hole, and reduce the construction space in hole, improve efficiency of construction.
In two top dry wall subelement series connection, should be noted that headspace and the problem that both effectively connect, therefore, step 1012 is decomposed into following steps:
Step 10121, when adjacent two top dry wall subelement serial connections, reserved position, ater-casting between adjacent two top dry wall subelements, the prearrangement of deformation amount seam position, middle part of position, ater-casting; The length of position, ater-casting is within the scope of 600-1200 millimeter; The length of deformation joint is within the scope of 20-50 millimeter;
Step 10122, carries out concrete placings in position, ater-casting.
In order to provide the quality of construction, and the stability connected, between step 103 and step 104, construction method comprises further: by the bottom surface dabbing of top dry wall, cleaning.
Equally, between step 10121 and step 10122, step 1012 comprises further: carried out at ater-casting place clearing up, pick cutter, wash away.
The track wall construction that this technology proposes, compared with the track beam structure adopted in current tunnel, has the following advantages:
(1) the rail beam scheme adopted in current tunnel, rail beam both sides prop up pier foundation assume responsibility for whole train loads and dead load reasonable, and in this technology, what track wall adopted is strip foundation, track wall integrated carrying train load, force dispersion, avoids using buttress, and then avoids train load and rail beam Load concentration and act on situation on buttress.
(2) quantity of reinforcement of track wall is decreased.In current tunnel inner orbit beam technology, in the middle part of rail beam, moment of flexure is comparatively large, and quantity of reinforcement is larger.And this technological trajectory wall force dispersion, stressed based on compressive stress, moment of flexure is very little, therefore significantly can reduce arrangement of reinforcement.
(3) cross dimensions in tunnel is reduced.When adopting track beam structure, by the impact of Load concentration, the buttress of rail beam both sides and a pier foundation thereof are comparatively large, and cause tunnel cross-section to increase, and after adopting track wall scheme, do not need to arrange buttress, therefore tunnel cross-section is less.
The various embodiments that the utility model provides can combine as required in any way mutually, the technical scheme obtained by this combination, also in scope of the present utility model.
Obviously, when not departing from spirit and scope of the present utility model, those skilled in the art can carry out various change and modification to the utility model.If to change of the present utility model these and modification is within the scope of claim of the present utility model and equivalent thereof, then the utility model also will comprise these and change and modification.
Claims (5)
1. a straddle monorail underground section track wall construction, is characterized in that, comprising: top dry wall and bottom cast-in-place wall and foundation structure; Wherein, described top dry wall is precast construction, and inner reinforcing bar extends downwards and leans out the soffit of described precast construction; Described bottom cast-in-place wall is the structure of cast in situs, and its inside comprises the described inner reinforcing bar of described top dry wall, and described bottom cast-in-place wall probes in described foundation structure, and pouring structure integrated with described foundation structure.
2. straddle monorail underground section track wall construction as claimed in claim 1, it is characterized in that, along the longitudinal extension direction of described track wall construction, described top dry wall is in series by multiple tops dry wall subelement, and the length of described top dry wall subelement is within the scope of 1 meter-20 meters.
3. straddle monorail underground section track wall construction as claimed in claim 2, it is characterized in that, arrange ater-casting between adjacent two described top dry wall subelements, described ater-casting is concrete placings structure.
4. straddle monorail underground section track wall construction as claimed in claim 3, it is characterized in that, the length of described ater-casting is within the scope of 600-1200 millimeter.
5. straddle monorail underground section track wall construction as claimed in claim 4, it is characterized in that, the middle part of described ater-casting arranges deformation joint, and the length of described deformation joint is within the scope of 20-50 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520489039.4U CN204825963U (en) | 2015-07-08 | 2015-07-08 | Stride single track ground of formula hypomere track wall structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520489039.4U CN204825963U (en) | 2015-07-08 | 2015-07-08 | Stride single track ground of formula hypomere track wall structure |
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| CN204825963U true CN204825963U (en) | 2015-12-02 |
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| CN201520489039.4U Withdrawn - After Issue CN204825963U (en) | 2015-07-08 | 2015-07-08 | Stride single track ground of formula hypomere track wall structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104988951B (en) * | 2015-07-08 | 2017-01-04 | 中铁工程设计咨询集团有限公司 | Straddle monorail underground section track wall construction and construction method thereof |
| CN108756084A (en) * | 2018-07-27 | 2018-11-06 | 广东建星建造集团有限公司 | Assembled parapet and attaching method thereof |
| CN112281619A (en) * | 2020-09-23 | 2021-01-29 | 中铁工程设计咨询集团有限公司 | Straddle type monorail shield tunnel inner track beam bridge and construction method thereof |
-
2015
- 2015-07-08 CN CN201520489039.4U patent/CN204825963U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104988951B (en) * | 2015-07-08 | 2017-01-04 | 中铁工程设计咨询集团有限公司 | Straddle monorail underground section track wall construction and construction method thereof |
| CN108756084A (en) * | 2018-07-27 | 2018-11-06 | 广东建星建造集团有限公司 | Assembled parapet and attaching method thereof |
| CN112281619A (en) * | 2020-09-23 | 2021-01-29 | 中铁工程设计咨询集团有限公司 | Straddle type monorail shield tunnel inner track beam bridge and construction method thereof |
| CN112281619B (en) * | 2020-09-23 | 2022-04-15 | 中铁工程设计咨询集团有限公司 | Straddle type monorail shield tunnel inner track beam bridge and construction method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151202 Effective date of abandoning: 20161019 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |