CN215053217U - Underground railway access structure for penetrating underground pipeline - Google Patents

Abstract

The utility model discloses a wear pipeline's subway access & exit structure down, include: the subway entrance and exit device comprises a plurality of supporting devices, a plurality of connecting rods and a plurality of supporting rods, wherein all the supporting devices are arranged at intervals along the length direction of the subway entrance and exit, each supporting device comprises two stand columns, a cross beam and a bottom beam, the two stand columns are respectively arranged on the left side and the right side of the subway entrance and exit, the cross beams stretch across the tops of the two stand columns, and the bottom beams stretch across the bottoms of the two stand columns; a plurality of first advancing small guide pipes distributed at intervals along the vertical direction are arranged on the outer side of each upright post, and each first advancing small guide pipe inclines backwards from inside to outside; the large pipe shed is arranged at the top of the subway entrance and exit and is arranged in each beam in a penetrating manner; and each supporting device is provided with at least one steel structure lattice column, and the steel structure lattice columns are arranged between the cross beam and the bottom beam in a detachable mode. The utility model discloses a subway access & exit structure can reduce the influence of engineering construction to intensive sensitive underground pipeline.

Description

Underground railway access structure for penetrating underground pipeline

Technical Field

The utility model relates to a subway engineering technical field, in particular to wear underground pipeline's subway access & exit structure down.

Background

In recent years, urban subways are rapidly developed in China, and the number and mileage of the constructed subways are rapidly increased every year. The subway is generally built in a busy area with dense urban population, and the condition that dense sensitive underground pipelines are worn down is often encountered in the process of building an entrance and an exit of a subway station, and the underground pipelines are life lines of the city and are extremely important to the life of urban residents. The construction of subway entrances and exits inevitably can disturb surrounding rocks, so that stress and deformation are generated, dense and sensitive underground pipelines in the adjacent surrounding rocks are influenced, the underground pipelines are generally overhauled for a long time and are sensitive to stress and deformation, once the deformation is too large, the underground pipelines can be damaged or even broken, the ground is collapsed, the construction progress is influenced, and huge life and property losses are caused to workers and urban residents.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wear underground pipeline's subway access & exit structure down to lead to the cracked shortcoming of underground pipeline easily when overcoming current subway access & exit construction.

In order to achieve the above object, the utility model provides a wear pipeline's subway access & exit structure down, include: the supporting devices are arranged at intervals along the length direction of a subway entrance, each supporting device comprises two stand columns, a cross beam and a bottom beam, the two stand columns are respectively arranged on the left side and the right side of the subway entrance, the cross beam stretches across the tops of the two stand columns, and the bottom beam stretches across the bottoms of the two stand columns; the outer side of each upright post is provided with a plurality of first advancing small guide pipes which are distributed at intervals in the vertical direction, and each first advancing small guide pipe inclines backwards from inside to outside; the large pipe shed is arranged at the top of the subway entrance and exit and penetrates through each beam; and each supporting device is provided with at least one steel structure lattice column, and the steel structure lattice columns are arranged between the cross beams and the bottom beams in a detachable mode.

Preferably, in the above technical solution, at least one second leading small conduit is arranged between two adjacent steel pipes in the large pipe shed.

Preferably, in each of the supporting devices, both left and right ends of the bottom beam extend outward beyond the outer side of the corresponding upright.

Preferably, in the above technical solution, in each of the supporting devices, the cross beam, the bottom beam, and each of the columns are all of a reinforced concrete structure, and a connecting reinforcement connected to the lining is reserved in each of the supporting devices.

Preferably, in the above technical solution, each of the first small leading ducts is parallel to the bottom of the subway entrance/exit.

Preferably, in the above technical scheme, an included angle between each first advanced small guide pipe and the length direction of the subway entrance/exit is 15-45 °.

Preferably, in the above technical scheme, the top and the bottom of the steel structure lattice column are both provided with steel backing plates.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the utility model discloses a subway access & exit structure sets up in the below of pipeline, is convenient for the construction of subway access & exit, reduces the influence of construction to intensive sensitive pipeline, guarantees the safety of city lifeline in the work progress, reduces the expense of construction; each beam is combined with the large pipe shed into a whole, so that the large pipe sheds can be firmly fixed on the beams, and the rigidity and the overall stability of the supporting device are improved; the outside of stand is equipped with first leading little pipe, and the fixed and support of country rock of being convenient for further improves strutting arrangement's stability.

2. The utility model discloses a strutting arrangement can play temporary support effect and can pour as an organic wholely with permanent structures such as lining cutting again, not only reduces the repeated work of demolising, can also increase the bulk rigidity and the stability of lining cutting, has great practical value.

Drawings

Fig. 1 is a schematic structural view of a subway entrance/exit structure for passing underground pipelines.

Fig. 2 is a front view schematic of fig. 1 according to the present invention.

Description of the main reference numerals:

1-underground pipeline, 2-second advanced small conduit, 3-large pipe shed, 4-first advanced small conduit, 5-upright post, 6-lining, 7-steel structure lattice column, 8-steel backing plate, 9-beam and 10-bottom beam.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

Throughout the specification and claims, unless explicitly stated otherwise, the word "comprise", or variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated element or component but not the exclusion of any other element or component.

Fig. 1 and 2 show a schematic structural view of a subway entrance/exit structure passing underground pipelines, which includes a plurality of supporting devices, a large pipe shed 3 and steel lattice columns 7 according to a preferred embodiment of the present invention. Referring to fig. 1 and 2, all the supporting devices are arranged at intervals along the length direction of the subway entrance/exit, each supporting device comprises two columns 5, a cross beam 9 and a bottom beam 10, the two columns 5 are respectively arranged at the left side and the right side of the subway entrance/exit, the cross beam 9 spans the tops of the two columns 5, and the bottom beam 10 spans the bottoms of the two columns 5, so that the columns 5, the cross beam 9 and the bottom beam 10 form a rectangular structure, thereby supporting the subway entrance/exit and improving the utilization rate of the section of the subway entrance/exit. The outer side of each upright post 5 is provided with a plurality of first advanced small guide pipes 4 which are distributed at intervals along the vertical direction, each upright post 5 is combined with the first advanced small guide pipes 4 into a whole, each first advanced small guide pipe 4 inclines backwards from inside to outside, namely the left side of the upright post 5 on the left side is provided with the first advanced small guide pipe 4, and the first advanced small guide pipes 4 incline backwards from right to left; a first advanced small conduit 4 is arranged on the right side of the right upright post 5, and the first advanced small conduit 4 inclines backwards from left to right; wherein, the backward inclined direction of the first advancing small conduit 4 is the same as the excavation direction of the subway entrance and exit. Big pipe shed 3 sets up in the top of subway access & exit, and the length of big pipe shed 3 is along the length direction of subway access & exit, and big pipe shed 3 wears to locate in every crossbeam 9 and along the length direction interval distribution of crossbeam 9 to make every crossbeam 9 combine in an organic whole with big pipe shed 3, and all steel pipes along the length direction interval distribution of crossbeam in the big pipe shed 3. Each supporting device is provided with at least one steel structure lattice column 7, and the steel structure lattice columns 7 are detachably arranged between the cross beams 9 and the bottom beams 10 and used for supporting and fixing the cross beams 9 so as to facilitate the supporting and construction of the cross beams 9. The utility model discloses a subway access & exit structure sets up in the below of pipeline 1, is convenient for the construction of subway access & exit, reduces the influence of construction to intensive sensitive pipeline 1, guarantees the safety of city lifeline in the work progress, reduces the expense of construction; each beam 9 is combined with the large pipe shed 3 into a whole, so that the large pipe shed 3 can be firmly fixed on the beam 9, and the rigidity and the overall stability of the supporting device are improved; the outside of stand 5 is equipped with first leading little pipe 4, and the fixed and support of country rock is convenient for further improve strutting arrangement's stability.

Referring to fig. 1 and 2, preferably, at least one second advanced small conduit 2 is arranged between two adjacent steel pipes in the large pipe shed 3, the steel pipes in the large pipe shed 3 and the second advanced small conduits are distributed at intervals, grouting of the large pipe shed 3 and grouting of the advanced small conduits can be combined together, the reinforcing effect is improved, and each beam 9 is poured into a whole together with the large pipe shed 3 and the second advanced small conduits 2, so that the overall performance of the support is improved.

Referring to fig. 1 and 2, preferably, in each supporting device, the left and right ends of the bottom beam 10 extend outwards beyond the outer side of the corresponding upright 5, and the length of the outward extension of the bottom beam 10 is 0.5-1 m, so as to transmit the axial force applied to the upright 5 to the lower bedrock through the bottom beam 10 in a dispersed manner, reduce stress concentration, and increase structural stability.

Referring to fig. 1 and 2, preferably, in each supporting device, the cross beam 9, the bottom beam 10 and each upright post 5 are all of reinforced concrete structure and are reserved with connecting steel bars connected with the lining 6, and are cast integrally with the lining 6 to form a permanent structure, so that the rigidity and stability of the lining 6 and the capability of resisting the stress of surrounding rocks are greatly increased while materials are not wasted.

Referring to fig. 1 and 2, preferably, each first advanced small guide pipe 4 is parallel to the bottom of the subway entrance/exit, and an included angle between each first advanced small guide pipe 4 and the length direction of the subway entrance/exit is 15-45 °, so that the first advanced small guide pipes 4 of the left and right side columns 5 are in a splayed structure with the opening direction facing backwards, and further fixing and supporting of the surrounding rock are improved.

Referring to fig. 1 and 2, steel backing plates 8 are preferably provided at the top and bottom of the steel lattice column 7 to improve the stability of the beam 9 support.

When the device is used, the large pipe shed 3, the second advanced small guide pipes 2 and the first advanced small guide pipes 4 of the first supporting device are firstly constructed by grouting, then the bottom beam 10 and the upright columns 5 on two sides of the first supporting device are constructed, then the steel structure lattice columns 7 are installed on the bottom beam 10, and then the cross beam 9 is constructed; after the first supporting device is constructed, excavating a soil body at the entrance and exit of the subway, constructing a lining 6 after excavating a section of soil body, and connecting and pouring reinforcing steel bars of the lining 6 with reserved connecting reinforcing steel bars of two stand columns 5, a bottom beam 10 and a cross beam 9 into a whole; after the lining 6 construction is completed, a second supporting device is constructed, the process is circulated until the construction of the subway entrance and exit is completed, and then all the steel structure latticed columns 7 are disassembled, so that the influence of the construction on the intensive sensitive underground pipelines 1 can be reduced by the subway entrance and exit structure and the construction process, and the safety of city life lines in the construction process is ensured.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.

Claims (7)

1. The utility model provides a wear underground pipeline's subway access & exit structure which characterized in that includes:

the supporting devices are arranged at intervals along the length direction of a subway entrance, each supporting device comprises two stand columns, a cross beam and a bottom beam, the two stand columns are respectively arranged on the left side and the right side of the subway entrance, the cross beam stretches across the tops of the two stand columns, and the bottom beam stretches across the bottoms of the two stand columns; the outer side of each upright post is provided with a plurality of first advancing small guide pipes which are distributed at intervals in the vertical direction, and each first advancing small guide pipe inclines backwards from inside to outside;

the large pipe shed is arranged at the top of the subway entrance and exit and penetrates through each beam; and

the steel structure lattice column, every strutting arrangement is equipped with at least one this steel structure lattice column, and this steel structure lattice column with can dismantle the mode install in the crossbeam with between the floorbar.

2. A subway entrance/exit structure as claimed in claim 1, wherein at least one second advanced small guide tube is provided between two adjacent steel pipes in said large canopy.

3. A subway entrance and exit structure as claimed in claim 1, wherein in each of said supporting means, both left and right ends of said bottom beam are extended outwardly beyond the outer side of said corresponding said pillar.

4. A subway entrance/exit structure through which underground utilities pass down according to claim 1, wherein in each of said supporting means, said cross beams, said bottom beams and each of said columns are of a reinforced concrete structure and are each reserved with a connecting reinforcement connected to a lining.

5. A subway entrance/exit structure as claimed in claim 1, wherein each of said first small lead pipes is parallel to the bottom of said subway entrance/exit.

6. A subway entrance/exit structure for underground pipelines according to claim 1, wherein an angle formed by each of said first small leading pipes and a longitudinal direction of said subway entrance/exit is 15 to 45 °.

7. A subway entrance and exit structure passing underground according to claim 1, wherein steel backing plates are provided on the top and bottom of said steel lattice columns.

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