CN104727342A - Ribbing hollow plate underground passage structure - Google Patents
Ribbing hollow plate underground passage structure Download PDFInfo
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- CN104727342A CN104727342A CN201510072708.2A CN201510072708A CN104727342A CN 104727342 A CN104727342 A CN 104727342A CN 201510072708 A CN201510072708 A CN 201510072708A CN 104727342 A CN104727342 A CN 104727342A
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- underground passage
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Abstract
The invention discloses a ribbing hollow plate underground passage structure. The ribbing hollow plate underground passage structure comprises a left wall, a right wall and a bottom plate, wherein the bottom plate is further provided with at least one partition wall. The ribbing hollow plate underground passage structure further comprises a top plate, a plurality of cavities arranged separately are formed in the top plate in the longitudinal direction of the underground passage structure, an upper thin plate, a lower thin plate and a plurality of ribbing plates are formed on the top plate, the ribbing plates are connected between every two adjacent cavities, the top ends and the bottom ends of the ribbing plates are connected with the upper thin plate and the lower thin plate respectively, and the lower thin plate is arranged on the top surfaces of the left wall, the right wall and the partition. The ribbing hollow plate underground passage structure is higher in economy, is suitable for an underground passage with an ultralarge span and reduces the self gravity of the top plate, steel bars and concrete can all effectively play the anti-tensile and anti-pressing capacity, and then the bearing capacity of the top plate is effectively improved. The internal and external temperature difference caused by heat of hydration in the concrete pouring process is reduced, and the possibility of cracks generated can be lowered with less or without cooling measures.
Description
Technical field
The present invention relates to a kind of ribbing hollow template underground passage structure.
Background technology
Along with the development in city and the raising of living standards of the people, each large-scale city automobile recoverable amount increases year by year fast, makes urban traffic face huge pressure.Meanwhile, be promote urban green coverage rate and reduce the noise of sensitizing range, city and air pollution, Urban Underground Passage gradually accept by people and adopt.Due to the increase of the traffic volume, the span of underground passage is increasing, and top board is more and more thicker, it is increasing to conduct oneself with dignity, and current conventional structure effectively cannot solve the problem that " large span " is brought.
At present, rapid is the key method solving urban transport problems, and rapid key is to realize traffic flow without at grade intersection.The major way solving at grade intersection for set up at crossing place overhead bridge crossing or under wear tunnel, the former occupies part soil, view is difficult to modify, thus beautifies to civic landscape and bring a very large difficult problem; The latter is hidden in underground, does not occupy land resources completely from ground, and does not establish ground structure, has both solved the problem of traffic, does not impact to land resources, urban beautification again.
In multi-purpose project, wagon flow, the stream of people is huge and the area of plane is limited, and therefore often span is very large for underground passage; In addition, underground passage of growing up must arrange a ring road of linking up with ground every a segment distance, so that underground passage can effectively serve this section.In ring road Disengagement zone, underground, the main line of underground passage broadens, and should be able to meet main line and the sum requirement of ring road track, therefore, genuine width increases unavoidable.
Underground passage is most form of construction work adopting shield structure, open cut or lid to dig in city.Wherein, shield structure many employings circular cross section, limited width, the buried depth needed in addition is comparatively large, links up more difficult, be mainly applicable to the through trip of long distance with ground; But open cut or lid dig and adopt rectangular frame structure more, simply lucid and lively, space availability ratio is also high, is the classical model of underground passage.
But this kind of rectangular frame structure force-transmission mechanism is fairly simple, top board is the plated construction of supported at two edges.The deadweight of self directly born by top board, upper earthing weighs and vehicular load.When span is smaller, within conventional Four-Lane Road, conventional rectangular frame construction can meet force request; When span is larger, the such as rectangular area lower channel of two-way ten two lane highways, buried depth is fixed tentatively as 3m, and single chamber clear span is about 25m, conveniently rectangular frame structure, and top plate thickness will reach more than 1.8m, and wherein top board deadweight will account for more than 40% of total load.Therefore, in traditional underground passage structure when passage span is larger, the thickness of top board is very large, add the deadweight of top board, thus add concrete masonry's amount of top board, make top board self gravitation account for the ratio of total load very greatly, cause the load-carrying efficiency of top board extremely low.
Summary of the invention
The technical problem to be solved in the present invention is the defects such as the load-carrying efficiency that thickness is very large, deadweight is very large, concrete masonry measures increase and top board in order to overcome traditional underground passage structure of the prior art top board when passage span is larger is extremely low, a kind of reinforcement hollow template underground passage structure is provided, this reinforcement hollow template underground passage structure can alleviate concrete masonry's amount of top board, top board is conducted oneself with dignity low, bearing capacity is high.
The present invention solves above-mentioned technical problem by following technical proposals:
A kind of ribbing hollow template underground passage structure, it comprise one on the left of wall, a right-side wall and a base plate, its feature is, on the left of this, wall and this right-side wall symmetry are connected to the two ends, left and right of this base plate, and this base plate is also provided with at least one partition wall, this partition wall is on the left of this between wall and right-side wall;
This underground passage structure also comprises a top board, longitudinal direction along this underground passage structure in this top board offers some spaced cavitys, and this top board is formed with a top sheet, a bottom thin plate and some reinforcement floors, respectively this reinforcement floor is connected between two adjacent these cavitys, respectively the top of this reinforcement floor and bottom are connected on this top sheet and bottom thin plate, and this bottom thin plate is arranged on the end face of wall on the left of this, right-side wall and partition wall.
In this programme, adopt the underground passage structure economics of said structure form higher, and be applicable to the underground passage of super-span;
In addition, adopt said structure form, reduce concrete volume in top board, alleviate concrete masonry's amount of top board, reduce top board deadweight, make total slimmer and more graceful, reinforcing bar and concrete all can more effectively play its tension, anti-pressure ability, and then effectively strengthen top board supporting capacity;
In addition, because top board self gravitation reduces, left side wall, right-side wall, partition wall and base plate thickness also can correspondingly reduce, thus decrease concrete quantity of masonry, make total more economically, rationally, meet the social theory of modern environment-friendly and green, farthest reduce engineering quantity, reach economical and maximize;
Meanwhile, the top board of heavy thickness is arranged to two pieces of thin plates, structural thickness reduces, the internal-external temperature difference that when decreasing pouring concrete, the heat of hydration brings, and can reduce or completely unnecessary cooling measure of taking just can reduce the possibility producing crack.
Preferably, respectively this reinforcement floor all along the horizontally set of this underground passage structure.
In this programme, reinforcement floor, along genuine horizontally set, makes top board stressed more reasonable, thus has effectively played the resistance to compression of concrete and reinforcing bar, resistance to tension, given full play to the performance of each material in top board.
Preferably, this reinforcement floor, top sheet and bottom thin plate are armored concrete slab, and this reinforcement floor and this top sheet, bottom thin plate form an entirety, and the reinforcing bar of this reinforcement floor is connected with the reinforcing bar of this top sheet with bottom thin plate.
In this programme, top sheet and bottom thin plate are linked to be a general frame type structure by described reinforcement floor, and make structure the slimmest and the most graceful, integral rigidity compares maximization with supporting capacity.
Preferably, the Thickness Ratio of this top sheet, bottom thin plate and reinforcement floor is 1:(1-1.5): (1-1.5).
In this programme, adopt said structure form, the bearing capacity of lower floor's thin plate and reinforcement floor can be played to greatest extent, thus reach the object utilizing structure substantially.
Preferably, directly fluid concrete is obtained after adopting reinforcing bar to fix inner formword at cavity place for this top board.
Preferably, respectively lightweight material is filled with in this cavity.
In this programme, adopt said structure form, can guarantee that concrete forming can't occur obviously increasing loading.
Preferably, respectively hydro-expansive rubber bar is also provided with in this cavity.
In this programme, the boundary face that lightweight material contacts with concrete in cavity is arranged hydro-expansive rubber bar, guarantee cavity inside tight, thus ensure in cavity can not water-filling, thus avoid underground water corrosion is caused to reinforcing bar and concrete.
Preferably, respectively also prestressed reinforcement is provided with in this reinforcement floor.
In this programme, reinforcement floor connects the upper and lower part thin plate of top board, highly comparatively large, is configured with presstressed reinforcing steel, reduces engineering quantity, tensile stress and scope thereof.
Preferably, on the left of this, wall, right-side wall, partition wall and base plate are formed in one.
On the basis meeting this area general knowledge, above-mentioned each optimum condition, can be combined, obtain the preferred embodiments of the invention.
Positive progressive effect of the present invention is:
(1) economy is higher, and is applicable to the underground passage of super-span;
(2) concrete volume in top board is reduced, alleviate concrete masonry's amount of top board, reduce top board deadweight, make total slimmer and more graceful, reinforcing bar and concrete all can more effectively play its tension, anti-pressure ability, and then effectively strengthen top board supporting capacity;
(3) because top board self gravitation reduces, left side wall, right-side wall, partition wall and base plate thickness also can correspondingly reduce, thus decrease concrete quantity of masonry, make total more economically, rationally, meet the social theory of modern environment-friendly and green, farthest reduce engineering quantity, reach economical and maximize;
(4) internal-external temperature difference that when decreasing pouring concrete, the heat of hydration brings, can reduce or completely unnecessary cooling measure of taking just can reduce the possibility producing crack.
Accompanying drawing explanation
Fig. 1 is the structural representation of the ribbing hollow template underground passage structure of present pre-ferred embodiments.
Fig. 2 is the sectional view along A-A in Fig. 1.
Fig. 3 is the structure for amplifying schematic diagram of part B in Fig. 2.
Description of reference numerals:
Base plate: 1
Left side wall: 2
Right-side wall: 3
Partition wall: 4
Top board: 5 cavitys: 51 top sheet: 52
Bottom thin plate: 53 reinforcement floors: 54
Maintaining roadway: 6
Crash bearer: 7
Detailed description of the invention
Lift preferred embodiment below, and come by reference to the accompanying drawings clearlyer intactly the present invention to be described.
In describing the invention, it will be appreciated that, term " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", the orientation of the instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
The invention provides a kind of ribbing hollow template underground passage structure, wherein, in the present embodiment with two-way ten two lane highways, the underground passage structure of single hole 25m clear span is described in detail.
Please understood according to Fig. 1-3, this underground passage structure comprise one on the left of wall 2, right-side wall 3, base plate 1, partition wall 4 and a top board 5, wherein, on the left of this, wall 2 and this right-side wall 3 symmetry are connected to the two ends, left and right of this base plate 1, and partition wall 4 is on the left of this between wall 2 and right-side wall 3.Meanwhile, the bottom of partition wall 4 and top are connected on base plate 1 and top board 5; And the two ends of top board 5 are connected to on the end face of partition wall 4.
In the present embodiment, on the left of this, wall 2, right-side wall 3, partition wall 4 and base plate 1 are formed in one.And in work progress, left side wall 2, right-side wall 3, partition wall 4 and base plate 1 are poured into a mould according to normal construction flow process.Meanwhile, the left end of this base plate 1 and right-hand member are respectively equipped with a maintaining roadway 6, and this base plate 1 is also provided with two groups of crash bearers 7 near this partition wall 4 place, these two groups of crash bearers 7 lay respectively on the two side of this partition wall 4.
As Figure 2-3, the longitudinal direction along this underground passage structure in top board 5 offers some spaced cavitys 51, and this top board 5 is formed with top sheet 52, bottom thin plate 53 and some reinforcement floors 54.Wherein, respectively this reinforcement floor 54 is connected between two adjacent cavitys 51, the top of each reinforcement floor 54 and bottom are connected on this top sheet 52 and bottom thin plate 53, and this bottom thin plate 53 is arranged on the end face of left side wall 2, right-side wall 3 and partition wall 4.
In the present embodiment, adopt the underground passage structure economics of said structure form higher, and be applicable to the underground passage of super-span, meanwhile, reduce concrete volume in top board 5, alleviate concrete masonry's amount of top board 5, reduce top board 5 to conduct oneself with dignity, make total more slim and graceful, reinforcing bar and concrete all can more effectively play its tension, anti-pressure ability, and then effectively strengthen top board 5 supporting capacity.
In addition, because top board 5 self gravitation reduces, left side wall 2, right-side wall 3, partition wall 4 and base plate 1 thickness also can correspondingly reduce, thus decrease concrete quantity of masonry, make total more economically, rationally, meet the social theory of modern environment-friendly and green, farthest reduce engineering quantity, reach economical and maximize;
In addition, the top board 5 of heavy thickness is arranged to two pieces of thin plates, structural thickness reduces, the internal-external temperature difference that when decreasing pouring concrete, the heat of hydration brings, and can reduce or completely unnecessary cooling measure of taking just can reduce the possibility producing crack.
As shown in Figure 1-2, respectively this reinforcement floor 54 all along the horizontally set of this underground passage structure.Make top board 5 stressed more reasonable like this, thus effectively played the resistance to compression of concrete and reinforcing bar, resistance to tension, give full play to the performance of each material in top board 5.
In addition, this reinforcement floor 54, top sheet 52 and bottom thin plate 53 are armored concrete slab, this reinforcement floor 54 and this top sheet 52, bottom thin plate 53 shape are in aggregates, and the reinforcing bar of reinforcement floor 54 is connected with the reinforcing bar of bottom thin plate 53 with this top sheet 52.Top sheet 52 and bottom thin plate 53 are linked to be a general frame type structure by reinforcement floor 54, and make structure the slimmest and the most graceful, integral rigidity compares maximization with supporting capacity.
In addition, the Thickness Ratio of this top sheet 52, bottom thin plate 53 and reinforcement floor 54 is 1:(1-1.5): (1-1.5).The bearing capacity of lower floor's thin plate and reinforcement floor can be played so to greatest extent, thus reach the object utilizing structure substantially.
Further, this top board 5 is by after inner formword fixed by cavity 51 place employing reinforcing bar, directly fluid concrete is obtained or obtained by filling dilatancy lightweight material in each cavity 51.
In the present embodiment, adopt lightweight material to fill in top board 5 cavity 51, guarantee that concrete forming can't occur obviously increasing loading.Wherein, this lightweight material can be foamed plastics.
In addition, respectively hydro-expansive rubber bar is also provided with in this cavity.And this hydro-expansive rubber bar is arranged at this foamed plastics and this top sheet 52, between bottom thin plate 53 and the concrete of reinforcement floor 54.Can guarantee the inner tight of cavity 51 like this, thus ensure in cavity 51 can not water-filling, thus avoid underground water corrosion is caused to reinforcing bar and concrete.
Further, respectively also prestressed reinforcement is provided with in this reinforcement floor 54.Reinforcement floor 54 connects the upper and lower part thin plate 53 of top board 5, highly comparatively large, is configured with presstressed reinforcing steel, reduces engineering quantity, tensile stress and scope thereof.
In the present embodiment, for the underground passage structure of single hole 25m clear span, upper and lower part thin plate 53 can accomplish that 50cm is thick, and cavity 80cm is high, and 50cm is wide for reinforcement floor, and the spacing between two adjacent reinforcement floors 54 is 2m.Certainly, in Practical Project, height, the width of top sheet 52, bottom thin plate 53, reinforcement floor 54 and cavity 51 are determined according to Practical Calculation.
Simultaneously, top board 5 is in work progress, full framing is set up in underground passage inside after left side wall 2, right-side wall 3, partition wall 4 and base plate 1 reach design strength, assembling reinforcement, adopt at cavity place reinforcing bar to fix inner formword row cast top board 5 concrete or fill dilatancy lightweight material in cavity more simultaneously, prevent water-filling in space from causing corrosion to reinforcing bar and concrete.Wherein, the bar connecting of the reinforcing bar of reinforcement floor 54 and top sheet 52, bottom thin plate 53 is in aggregates.Near partition wall 4 or left side wall 2 or right-side wall 3 part, top sheet 52 and bottom thin plate 53 are an overall structure.
Although the foregoing describe the specific embodiment of the present invention, it will be understood by those of skill in the art that this only illustrates, protection scope of the present invention is defined by the appended claims.Those skilled in the art, under the prerequisite not deviating from principle of the present invention and essence, can make various changes or modifications to these embodiments, but these change and amendment all falls into protection scope of the present invention.
Claims (9)
1. a ribbing hollow template underground passage structure, it comprise one on the left of wall, a right-side wall and a base plate, it is characterized in that, on the left of this, wall and this right-side wall symmetry are connected to the two ends, left and right of this base plate, and this base plate is also provided with at least one partition wall, this partition wall is on the left of this between wall and right-side wall;
This underground passage structure also comprises a top board, longitudinal direction along this underground passage structure in this top board offers some spaced cavitys, and this top board is formed with a top sheet, a bottom thin plate and some reinforcement floors, respectively this reinforcement floor is connected between two adjacent these cavitys, respectively the top of this reinforcement floor and bottom are connected on this top sheet and bottom thin plate, and this bottom thin plate is arranged on the end face of wall on the left of this, right-side wall and partition wall.
2. underground passage structure as claimed in claim 1, it is characterized in that, respectively this reinforcement floor is all along the horizontally set of this underground passage structure.
3. underground passage structure as claimed in claim 1, it is characterized in that, this reinforcement floor, top sheet and bottom thin plate are armored concrete slab, this reinforcement floor and this top sheet, bottom thin plate form an entirety, and the reinforcing bar of this reinforcement floor is connected with the reinforcing bar of this top sheet with bottom thin plate.
4. underground passage structure as claimed in claim 1, it is characterized in that, the Thickness Ratio of this top sheet, bottom thin plate and reinforcement floor is 1:(1-1.5): (1-1.5).
5. underground passage structure as claimed in claim 1, is characterized in that, directly fluid concrete is obtained after adopting reinforcing bar to fix inner formword at cavity place for this top board.
6. underground passage structure as claimed in claim 1, is characterized in that, be respectively filled with lightweight material in this cavity.
7. underground passage structure as claimed in claim 6, is characterized in that, be respectively also provided with hydro-expansive rubber bar in this cavity.
8. underground passage structure as claimed in claim 1, is characterized in that, be respectively also provided with prestressed reinforcement in this reinforcement floor.
9. as the underground passage structure in claim 1-8 as described in any one, it is characterized in that, on the left of this, wall, right-side wall, partition wall and base plate are formed in one.
Priority Applications (1)
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| CN201510072708.2A CN104727342A (en) | 2015-02-11 | 2015-02-11 | Ribbing hollow plate underground passage structure |
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| CN201510072708.2A CN104727342A (en) | 2015-02-11 | 2015-02-11 | Ribbing hollow plate underground passage structure |
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| CN104727342A true CN104727342A (en) | 2015-06-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093822A (en) * | 2019-06-05 | 2019-08-06 | 中国能源建设集团安徽省电力设计院有限公司 | A kind of traction engine for the defeated coal shallow embedding gallery in thermal power plant underground is current to cross over plate and its design method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110093822A (en) * | 2019-06-05 | 2019-08-06 | 中国能源建设集团安徽省电力设计院有限公司 | A kind of traction engine for the defeated coal shallow embedding gallery in thermal power plant underground is current to cross over plate and its design method |
| CN110093822B (en) * | 2019-06-05 | 2024-01-23 | 中国能源建设集团安徽省电力设计院有限公司 | Heavy-load vehicle passing crossing plate for underground coal conveying shallow-buried corridor of thermal power plant and design method thereof |
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