CN110700852A - Single-hole double-line mine method tunnel section with mid-partition wall designed by urban D-type vehicle clearance - Google Patents
Single-hole double-line mine method tunnel section with mid-partition wall designed by urban D-type vehicle clearance Download PDFInfo
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- CN110700852A CN110700852A CN201910974353.4A CN201910974353A CN110700852A CN 110700852 A CN110700852 A CN 110700852A CN 201910974353 A CN201910974353 A CN 201910974353A CN 110700852 A CN110700852 A CN 110700852A
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- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000005192 partition Methods 0.000 title claims abstract description 14
- 239000002131 composite material Substances 0.000 claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000011150 reinforced concrete Substances 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 238000005065 mining Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/14—Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings
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Abstract
The invention discloses a single-hole double-line belt mid-partition mine method tunnel section structure based on urban D-type vehicle clearance design, wherein the single-hole double-line belt mid-partition mine method tunnel section structure comprises the following steps: the tunnel section consists of eight sections of circular arcs in total, and sequentially comprises an arch crown circular arc surface, a right side upper circular arc surface, a right side middle circular arc surface, a right side lower circular arc surface, an inverted arch circular arc surface, a left side lower circular arc surface, a left side middle circular arc surface and a left side upper circular arc surface; the other two adjacent arc surfaces are tangent except that the inverted arch arc surface is not tangent with the adjacent arc surface; the tunnel is a single hole, a double-line track is arranged in the tunnel, and a middle partition wall is arranged in the middle of the tunnel; the inside of the tunnel is provided with a track structure and D-type vehicles in the city area from bottom to top in sequence. According to the scheme, various requirements such as vehicle limitation, building limitation, structural arrangement, equipment installation and personnel evacuation are fully considered, the requirement of train driving safety is met, the interference of trains and buildings and equipment is avoided, the problem of overrun cannot be caused in the driving process of the vehicles is reasonably and effectively guaranteed, the cross-sectional area of the tunnel is reduced, and the engineering investment is reduced.
Description
Technical Field
The invention belongs to the field of urban railway tunnels, and particularly relates to a single-hole double-track mine tunnel section structure with a mid-partition wall based on urban D-type vehicle clearance design.
Background
Common tunnel mining methods include mining, tunneling, pipe sinking, jacking, open cut and the like. Aiming at the aspects of engineering importance, engineering geological conditions, hydrogeological conditions, construction technical conditions, economic value, construction safety conditions, environmental protection requirements and the like, the most applicable mining method is selected by combining the technical characteristics of different mining methods.
The basic operation of the mining method comprises drilling and blasting excavation, transportation slag tapping and supporting and lining, and is a traditional construction method. When high-speed rails, subways and highways are built, when geological conditions such as abundant water areas and surrounding mountains occur, the tunnel is communicated or penetrates through the tunnel from the bottom, bypassing can be effectively reduced, and running time is shortened. The section form can be divided into a single-hole single line form and a single-hole double line form according to the number of lines, the single-hole double line excavation area is large, the construction machinery is convenient to turn around, but the cost is high, and the operation disaster prevention capability is not strong; the single-hole single-line cost is low, and a new hole needs to be dug again during double-line operation, so that the cost is increased, but the operation disaster prevention capability is high.
The existing tunnel section forms comprise designs aiming at automobiles, subways and motor train units, the sections are often designed according to specific limit differentiation, when the automobile type changes, the section forms are unchanged, so that the automobile is out of limit, interference is caused between the automobile and surrounding buildings and equipment, and driving safety is at risk. The urban railway is connected with a metropolitan city and a satellite city, the urban railway is determined to be between urban rail transit and a high-speed train, the type of the urban railway is different from that of a subway vehicle and a high-speed motor train unit, the existing tunnel section cannot be effectively matched, and the limitation needs to be improved, so that the section area is as small as possible on the premise that the requirement of the vehicle limitation is met.
In order to avoid the interference of vehicles with tunnel buildings and equipment and ensure the driving safety of trains, the invention provides a key technology for solving the problem that the reasonable design of the cross section structure of a single-tunnel double-line belt mid-partition mine method tunnel is carried out aiming at the vehicle limit of D-type vehicles in a city area.
Disclosure of Invention
Aiming at least one of the defects or improvement requirements in the prior art, the invention provides a single-hole double-line belt mid-partition mine method tunnel section structure which is simple in structure, reasonable in design and convenient to use and is designed based on a D-type vehicle limit, the tunnel section fully considers the requirements in various aspects such as vehicle limits, building limits, structural arrangement, equipment installation, personnel evacuation and the like, the requirement of train driving safety is met, the interference of a train with buildings and equipment is avoided, and the tunnel section structure has high practical value.
To achieve the above objects, according to one aspect of the present invention, there is provided a single-hole double-line belt mid-wall mining method tunnel section structure designed based on urban D-type vehicle clearance, wherein:
the tunnel section consists of eight sections of circular arcs in total, and sequentially comprises an arch crown circular arc surface, a right side upper circular arc surface, a right side middle circular arc surface, a right side lower circular arc surface, an inverted arch circular arc surface, a left side lower circular arc surface, a left side middle circular arc surface and a left side upper circular arc surface; the other two adjacent arc surfaces are tangent except that the inverted arch arc surface is not tangent with the adjacent arc surface;
the tunnel is a single hole, a double-line track is arranged in the tunnel, the line centers of the two lines are bilaterally symmetrical by taking the center line of the tunnel as the center line, and no intermediate wall is arranged in the tunnel;
evacuation platforms are arranged on two sides of the intermediate wall;
a composite lining is arranged on the inner side of the tunnel;
the inside of the tunnel is provided with a track structure and D-type vehicles in the city area from bottom to top in sequence;
and one side of the track structure close to the middle partition wall is provided with a side ditch drainage ditch, and the other side of the track structure is also provided with a drainage ditch.
Preferably, the section circle centers of the arch arc surface and the inverted arch arc surface are located on the central line of the tunnel.
Preferably, the effective headroom of the left single hole and the right single hole of the tunnel is 39.7 square meters.
Preferably, the arch crown arc surface is a 60-degree arc which is symmetrical left and right, and the inner side radius of the lining is 6840 mm.
Preferably, the right upper arc surface and the left upper arc surface are symmetrical left and right, the radius of the inner side of the lining is 5540mm, and the circle centers of the sections are not positioned on the central line of the tunnel;
and/or the right middle arc surface and the left middle arc surface are bilaterally symmetrical, the radius of the inner side of the lining is 5410mm, and the circle centers of the sections are not positioned on the central line of the tunnel;
and/or the right lower arc surface and the left lower arc surface are bilaterally symmetrical, the radius of the inner side of the lining is 7390mm, and the circle center of the cross section is not positioned on the central line of the tunnel;
and/or the arc surface of the inverted arch is symmetrical left and right, the radius of the inner side of the lining is 14450mm, and the center of the section is positioned on the central line of the tunnel.
Preferably, the composite lining comprises a primary support, a waterproof layer and a secondary lining. The thickness of the composite lining at the arc surface of the inverted arch is larger than that of other arc surfaces, specifically, the thickness of the arc surface of the inverted arch is 460mm, and the thickness of the other arc surfaces is 400 mm.
Preferably, the line centers of the two lines are 6500mm apart.
Preferably, the highest point of the inner profile of the tunnel is 30mm away from the top surface 80of the inner rail.
Preferably, the track structure comprises a bottom plate, a reinforced concrete track bed, fasteners and steel rails, and the height of the track structure is 560 mm.
Preferably, electrical equipment and fire fighting equipment are arranged on two sides of the track structure.
The electrical equipment comprises an illuminating lamp, an overhaul equipment box, a strong current bracket, a track circuit box, a direction box, a signal machine box, an interval wireless base station, a repeater and a stray current sensor.
The fire fighting equipment comprises an interval fire fighting water pipe and a waste water pump room water raising pipe.
The above-described preferred features may be combined with each other as long as they do not conflict with each other.
Generally, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:
according to the single-hole double-line belt mid-partition mine method tunnel section structure based on the urban D-type vehicle clearance design, the requirements of various aspects such as vehicle clearance, building clearance, structural arrangement, equipment installation and personnel evacuation are fully considered, the requirement of train driving safety is met, the interference of trains with buildings and equipment is avoided, the problem of overrun cannot be caused in the vehicle driving process is reasonably and effectively guaranteed, the tunnel section area is reduced, and the engineering investment is reduced. The invention has scientific and reasonable design, simple structure and good practicability.
Drawings
FIG. 1 is a cross-sectional view of a single-hole double-track mine tunnel with a mid-wall based on urban D-type vehicle clearance design according to an embodiment of the invention;
FIG. 2 is an inner contour diagram of a single-hole double-line strip mid-wall mine method tunnel lining based on a municipal D-type vehicle clearance design according to an embodiment of the invention;
FIG. 3 is a schematic view of a circle center relationship according to an embodiment of the present invention;
FIG. 4 is a table of cross-sectional dimensions for an embodiment of the present invention.
In the graph, the size unit is cm, each point O represents the center of a circle, each point R represents the inner radius of a lining, each point R represents the outer radius of the lining, each point a represents the horizontal/vertical distance between the corresponding centers of the circles, b1 represents the maximum half width in a tunnel, b2 represents the half width of the bottom in the tunnel, H represents the distance between the highest point of the inner contour of the tunnel and the top surface of an inner rail, and H represents the distance between the highest point of the outer contour of the tunnel and the outer end elevation of the arc surface of the inverted arch.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. In addition, the technical features involved in the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other. The present invention will be described in further detail with reference to specific embodiments.
As a preferred embodiment of the present invention, as shown in fig. 1 to 4, the present invention provides a single-hole double-line belt mid-wall mine method tunnel section structure based on urban area D type vehicle limit design, wherein:
the tunnel section consists of eight sections of circular arcs in total, and sequentially comprises an arch crown circular arc surface 1, a right side upper circular arc surface 2, a right side middle circular arc surface 3, a right side lower circular arc surface 4, an inverted arch circular arc surface 6, a left side lower circular arc surface 10, a left side middle circular arc surface 11 and a left side upper circular arc surface 12; except that the inverted arch arc surface 6 is not tangent to the adjacent arc surface, the other two adjacent arc surfaces are tangent. Fig. 2 shows the inner tunnel contour 14, the tunnel building delimitations 15, the tunnel basic building delimitations 16. The train passing area of the tunnel section meets the requirements of a vehicle limit and a building limit of a D-type vehicle in a city area.
The tunnel is a single hole, a double-line track is arranged in the tunnel, the line centers of the two lines are bilaterally symmetrical by taking the center line of the tunnel as the center line, and the middle of the tunnel is provided with a middle partition wall 7. Evacuation platforms 8 are arranged on two sides of the intermediate wall 7.
And a composite lining 13 is arranged on the inner side of the tunnel. Preferably, the composite lining 13 includes a primary support, a waterproof layer, and a secondary lining. The thickness of the composite lining 2 at the position of the inverted arch arc surface 6 is larger than that of other arc surfaces, specifically, the thickness of the inverted arch arc surface 6 is 450mm, and the thicknesses of the other arc surfaces are 350 mm. The type of the composite lining 13 is a limited discharge type.
The inside track structure 9, the D type car in municipality are in proper order from bottom to top in the tunnel. The side ditch 5 is arranged on one side of the track structure 9 close to the middle partition wall 7, and the other side of the track structure is also provided with the side ditch 5. The track structure 9 comprises a bottom plate, a reinforced concrete track bed, fasteners and steel rails, and the height of the track structure is 560 mm.
The section circle centers of the arch crown arc surface 1 and the inverted arch arc surface 6 are positioned on the central line of the tunnel.
The effective headroom of the left single hole and the right single hole of the tunnel is 39.7 square meters.
When the tunnel does not consider the widening, namely the standard width or the widening is 0, as shown in figures 1-4, the arch crown arc surface 1 is a 60-degree arc which is symmetrical left and right, and the inner radius of the lining is 6840 mm. The right upper arc surface 2 and the left upper arc surface 12 are bilaterally symmetrical, the radius of the inner side of the lining is 5540mm, and the circle centers of the sections are not positioned on the central line of the tunnel; and/or the right middle arc surface 3 and the left middle arc surface 11 are bilaterally symmetrical, the radius of the inner side of the lining is 5410mm, and the centers of the cross sections are not positioned on the central line of the tunnel; and/or the right lower arc surface 4 and the left lower arc surface 10 are bilaterally symmetrical, the radius of the inner side of the lining is 7390mm, and the circle center of the cross section is not positioned on the central line of the tunnel; and/or the inverted arch arc surface 6 is symmetrical left and right, the radius of the inner side of the lining is 14450mm, and the center of the cross section is positioned on the central line of the tunnel.
The line center distance of the two lines is 6500 mm.
The highest point of the inner contour of the tunnel is 30mm away from the top surface of the inner rail.
And electrical equipment and fire fighting equipment are arranged on two sides of the track structure 9.
The electrical equipment comprises an illuminating lamp, an overhaul equipment box, a strong current bracket, a track circuit box, a direction box, a signal machine box, an interval wireless base station, a repeater and a stray current sensor.
The fire fighting equipment comprises an interval fire fighting water pipe and a waste water pump room water raising pipe.
According to the single-hole double-line belt mid-partition mine method tunnel section structure based on the urban D-type vehicle clearance design, the requirements of various aspects such as vehicle clearance, building clearance, structural arrangement, equipment installation and personnel evacuation are fully considered, the requirement of train driving safety is met, the interference of trains with buildings and equipment is avoided, the problem of overrun cannot be caused in the vehicle driving process is reasonably and effectively guaranteed, the tunnel section area is reduced, and the engineering investment is reduced. The invention has scientific and reasonable design, simple structure and good practicability.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (10)
1. The utility model provides a single hole double-line area mid-board mine method tunnel section structure based on design of municipality D type limit, its characterized in that:
the tunnel section consists of eight sections of circular arcs in total, and sequentially comprises an arch crown circular arc surface (1), a right side upper circular arc surface (2), a right side middle circular arc surface (3), a right side lower circular arc surface (4), an inverted arch circular arc surface (6), a left side lower circular arc surface (10), a left side middle circular arc surface (11) and a left side upper circular arc surface (12); except that the inverted arch arc surface (6) is not tangent with the adjacent arc surface, other two adjacent arc surfaces are tangent;
the tunnel is a single hole, a double-line track is arranged in the tunnel, the line centers of the two lines are bilaterally symmetrical by taking the center line of the tunnel as the center line, and a middle partition wall (7) is arranged in the middle of the tunnel;
evacuation platforms (8) are arranged on two sides of the intermediate wall (7);
a composite lining (13) is arranged on the inner side of the tunnel;
the inside of the tunnel is sequentially provided with a track structure (9) and D-type vehicles in the urban area from bottom to top;
and one side of the track structure (9) close to the intermediate wall (7) is provided with a side ditch drainage ditch (5), and the other side of the track structure is also provided with a drainage ditch (5).
2. The single-hole double-line belt mid-wall mine method tunnel section structure based on the urban area D type vehicle limit design according to claim 1, characterized in that:
the section circle centers of the arch crown arc surface (1) and the inverted arch arc surface (6) are positioned on the central line of the tunnel.
3. The single-hole double-line belt mid-wall mine method tunnel section structure based on the urban area D type vehicle limit design according to claim 2, characterized in that:
the effective headroom of the left single hole and the right single hole of the tunnel is 39.7 square meters.
4. The single-hole double-line belt mid-wall mine method tunnel section structure based on the urban area D type vehicle limit design according to claim 2, characterized in that:
the arch crown arc surface (1) is a 60-degree arc which is bilaterally symmetrical, the radius of the inner side of the lining is 6840mm, and the center of the cross section is located on the central line of the tunnel.
5. The single-hole double-line belt mid-wall mine method tunnel section structure based on the urban area D type clearance design according to claim 4, characterized in that:
the right upper arc surface (2) and the left upper arc surface (12) are bilaterally symmetrical, the radius of the inner side of the lining is 5540mm, and the circle centers of the sections are not positioned on the central line of the tunnel;
and/or the right middle arc surface (3) and the left middle arc surface (11) are bilaterally symmetrical, the radius of the inner side of the lining is 5410mm, and the centers of the cross sections are not positioned on the central line of the tunnel;
and/or the right lower arc surface (4) and the left lower arc surface (10) are bilaterally symmetrical, the radius of the inner side of the lining is 7390mm, and the circle centers of the sections are not positioned on the central line of the tunnel;
and/or the inverted arch arc surface (6) is symmetrical left and right, the radius of the inner side of the lining is 14450mm, and the center of the cross section is positioned on the central line of the tunnel.
6. The single-hole double-line belt mid-wall mine method tunnel section structure based on the urban area D type vehicle limit design according to claim 1, characterized in that:
the composite lining (13) comprises a primary support, a waterproof layer and a secondary lining.
7. The single-hole double-line belt mid-wall mine method tunnel section structure based on the urban area D type vehicle limit design according to claim 1, characterized in that:
the line center distance of the two lines is 6500 mm.
8. The single-hole double-line belt mid-wall mine method tunnel section structure based on the urban area D type vehicle limit design according to claim 1, characterized in that:
the highest point of the inner contour of the tunnel is 30mm away from the top surface of the inner rail.
9. The single-hole double-line belt mid-wall mine method tunnel section structure based on the urban area D type vehicle limit design according to claim 1, characterized in that:
the track structure (9) comprises a bottom plate, a reinforced concrete track bed, fasteners and steel rails, and the height of the track structure is 560 mm.
10. The single-hole double-line belt mid-wall mine method tunnel cross-section structure designed based on the urban area D-type vehicle clearance as claimed in claim 9, wherein:
and electrical equipment and fire fighting equipment are arranged on two sides of the track structure (9).
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| CN201910974353.4A CN110700852A (en) | 2019-10-14 | 2019-10-14 | Single-hole double-line mine method tunnel section with mid-partition wall designed by urban D-type vehicle clearance |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114215598A (en) * | 2021-12-24 | 2022-03-22 | 中铁二院工程集团有限责任公司 | Single-hole double-track railway tunnel and method for reducing influence of train derailment on adjacent track operation |
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Inventor after: Liu Gaokun Inventor after: Yang Runzhi Inventor after: Zheng Qingsong Inventor after: Qiu Shaofeng Inventor after: Li Jiaqi Inventor after: Li Jingwei Inventor after: Zhou Mingxing Inventor after: Zhang Di Inventor after: Xu Hongwei Inventor after: Yang Hui Inventor before: Liu Gaokun Inventor before: Yang Runzhi Inventor before: Zheng Qingsong Inventor before: Qiu Shaofeng Inventor before: Li Jiaqi Inventor before: Li Jingwei Inventor before: Zhou Mingxing Inventor before: Zhang Di Inventor before: Xu Hongwei Inventor before: Yang Hui |