CN213953678U - Novel inverted arch drainage and pressure relief device for high-speed railway tunnel in cold region - Google Patents
Novel inverted arch drainage and pressure relief device for high-speed railway tunnel in cold region Download PDFInfo
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- CN213953678U CN213953678U CN202022996032.5U CN202022996032U CN213953678U CN 213953678 U CN213953678 U CN 213953678U CN 202022996032 U CN202022996032 U CN 202022996032U CN 213953678 U CN213953678 U CN 213953678U
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Abstract
The utility model provides a novel high-speed railway tunnel invert drainage pressure release in cold district device, including the invert, the invert upper surface is provided with the invert filler, including the leading pipe, leading pipe bottom free end passes the invert filler and places in the invert, is provided with a plurality of infiltration holes on the leading pipe bottom lateral wall, and the leading pipe top is provided with a steel sleeve, and the leading pipe intercommunication sets up in steel sleeve bottom center department, and the steel sleeve setting is in the invert filler, and steel sleeve lateral wall is provided with the heat preservation sleeve along circumference, and the heat preservation sleeve setting is in the invert filler, and steel sleeve and heat preservation sleeve top are provided with the fixed bolster. The utility model combines the characteristics of the high-speed railway tunnel, and purposefully solves the problem of freezing expansion phenomenon caused in winter due to the accumulation of underground water in the tunnel inverted arch construction joint; the device has realized discharging the water in the tunnel invert construction joint through the device, under the effect of heat preservation sleeve, the water in leading conduit and the steel casing pipe can not take place to freeze.
Description
Technical Field
The utility model belongs to high-speed railway tunnel engineering field especially relates to a novel cold district high-speed railway tunnel invert drainage pressure release device.
Background
With the rapid development of high-speed railways in recent years, tunnels are used as engineering buildings of underground passages in the process of building the high-speed railways, can overcome the terrain or elevation obstacles, improve the linearity, improve the vehicle speed, shorten the mileage, reduce the damage to vegetation, protect the ecological environment and the like, but due to the construction joints generated by filling and applying the inverted arch and the influence of underground water in the tunnel construction process, although a relatively perfect waterproof and drainage system is arranged in the tunnel, due to the existence of weak parts such as longitudinal construction joints and circumferential construction joints, part of accumulated water exists in the inverted arch filling, particularly when water pressure is high, ballastless tracks can float upwards, cold areas are affected by low temperature, and the accumulated water at the construction joints is easy to accumulate due to the arrangement of pressure relief holes to freeze and expand, so that the filled parts of the inverted arch are bulged, and the driving safety is endangered under the condition of high-speed driving.
Based on the above problems, the inventor has sought a way to discharge water in the construction joints of the inverted arch of the tunnel and to prevent the water in the tunnel from flowing into the construction joints, so that the filling of the inverted arch due to frost heaving can be effectively prevented from rising, and the above drawbacks in the prior art can be eliminated.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide a novel high-speed railway tunnel invert drainage pressure relief device in cold district, especially be fit for solving groundwater and get into gathering in the tunnel invert construction joint and the easy frozen problem that rises that produces, realize the log raft play invert in the invert construction joint to prevent rail surface water to enter into in the invert.
In order to solve the technical problem, the utility model discloses a technical scheme is: the utility model provides a novel high-speed railway tunnel invert drainage pressure release in cold district device, including the invert, the invert upper surface is provided with the invert filler, including the leading pipe, leading pipe bottom free end passes the invert filler and places in the invert, is provided with a plurality of infiltration holes on the leading pipe bottom lateral wall, and the leading pipe top is provided with a steel sleeve, and the leading pipe intercommunication sets up in steel sleeve bottom center department, and the steel sleeve setting is in the invert filler, and the steel sleeve lateral wall is provided with the heat preservation sleeve along circumference, and the heat preservation sleeve sets up in the invert filler, and steel sleeve and heat preservation sleeve top are provided with the fixed bolster.
Furthermore, a movable piston is arranged in the steel sleeve in a horizontal sliding mode, and the edge of the side wall of the movable piston is attached to the inner side wall of the steel sleeve. The piston has the effect that under the action of water pressure in the water conduit, water in an inverted arch construction joint can be discharged out of an inverted arch of the tunnel through the movable piston, and surface water on the upper part of the inverted arch enters the steel pipe sleeve and cannot enter the water conduit through the movable piston.
Further, a heat insulation material is arranged between the steel sleeve and the heat insulation sleeve. The freezing effect of water in the steel pipe sleeve and the water diversion pipe is reduced under the combined action of the inverted arch filler and the heat insulation sleeve. And under the action of the water pressure at the lower part of the inverted arch, flowing water is not frozen in the process of passing through the water conduit and the movable piston.
Furthermore, the fixed bolster is long rod-shaped and has two, and two fixed bolster middle parts are connected through a fixed bolster movable pivot, and the fixed bolster tip all is provided with the bolt, and the bolt free end sets up on the invert filler, and the fixed bolster passes through bolt and invert filler fixed connection promptly. Because the wind pressure in the tunnel is large when the train runs in the high-speed railway tunnel, in order to prevent the drainage device from falling off, the double protection of two fixing modes of concrete pouring and a fixed support is adopted. And the two supports are connected, so that the reinforcing effect can be ensured, the reinforcing effect can be ensured between the two supports, and the integral reinforcing effect is prevented from being influenced by the looseness of one support.
Furthermore, the water guide pipe provided with the water seepage holes is positioned in the inverted arch and at the bottom of the filler of the inverted arch.
Furthermore, the water seepage holes are arranged in a quincunx shape.
In the use process, when groundwater gets into tunnel invert construction joint and forms local water pressure, the infiltration hole that water passes through the quincunx arrangement of leading pipe lower part gets into the leading pipe under the effect of water pressure. After the water guide pipe passes through the steel sleeve and the movable piston, the water is discharged out of the inverted arch filler, and water flow is collected on the upper surface of the inverted arch filler to the side ditch and discharged out of the tunnel hole, so that the water pressure at the lower part of the inverted arch filler is discharged, and the damage of the water pressure to the inverted arch filler is reduced.
When accumulated water flows through the surface of the device on the surface of the filler of the tunnel inverted arch, the upper water cannot enter the water guide pipe due to the action effect of the movable piston, and the device realizes the effect that only water is discharged and water does not enter the tunnel inverted arch. Particularly in cold seasons, because a large amount of water below the inverted arch filler is reduced, even if a small amount of water in a horizontal construction joint is frozen, the structural safety of the inverted arch filler is not influenced by too much freezing and swelling force.
When using in cold season, when invert bottom water pressure is still great, for preventing the utility model discloses device upper end drainage position freezes and influences the discharge of water, and pours the heat preservation sleeve in the invert filler to set up insulation material between heat preservation sleeve and steel sleeve. On one hand, when water in the invert filler is not frozen and water pressure still exists, the heat preservation measures can ensure that the water in the steel sleeve is not frozen first to influence the drainage of the water under the invert filler; on the other hand, pour the heat preservation sleeve in the invert filler to under the double-deck protection of fixed bolster, can guarantee the utility model discloses the installation of device is firm, thereby can not receive the influence of train piston wind to cause to drop and threaten to influence driving safety.
For example, in the northeast of China, a tunnel cannot be drained in time due to the collection of a large amount of underground water around the tunnel. Underground water is rapidly poured into horizontal construction joints of an inverted arch filling layer from waterproof weak positions such as inverted arch construction joints and side walls of an inspection well, so that water head pressure generated by the underground water acts on the inverted arch filling leveling layer, and a track structure is raised and floated under the action of the water head pressure. Particularly in cold seasons, the filling and bulging of the inverted arch caused by the expansion of the frozen material are obvious. The utility model discloses the device is to above phenomenon, can effectively release the invert and fill lower part water pressure to can prevent that invert upper surface water from flowing backward and getting into inside the invert.
The utility model has the advantages and positive effects that: by adopting the technical scheme, the utility model combines the characteristics of the high-speed railway tunnel, and the freezing expansion phenomenon generated in winter due to the accumulation of underground water in the tunnel inverted arch construction joint is pertinently solved; the device can discharge water in the construction joint of the tunnel inverted arch, and accumulated water on the upper surface of the inverted arch can not enter the inverted arch through the device, so that the tunnel inverted arch can be drained only without water; the device is poured in the inverted arch filling, water in the water guide pipe and the steel sleeve cannot be frozen under the action of the heat insulation sleeve, and under the condition that water pressure exists at the lower part of the inverted arch, the water cannot be frozen in the device to prevent the water from flowing out under the action of water flow, so that the inverted arch filling uplift caused by the frozen expansion of the water in the inverted arch construction joint in winter is prevented.
The utility model discloses a pour the device with the concrete in the tunnel invert is filled to fix with the fixed bolster in the top, guarantee the device installation firm through the mode of double-deck protection, prevent that the device from droing under the train wind effect, threaten driving safety.
Drawings
FIG. 1 is a schematic side view of the mounting structure of the present invention;
fig. 2 is a schematic top view of the present invention.
In the figure:
1. water conduit 2, water seepage hole 3, inverted arch
4. Inverted arch filler 5, heat insulation material 6 and heat insulation sleeve
7. Fixed support 8, movable piston 9 and steel sleeve
10. Bolt 11, fixed bolster activity fulcrum
Detailed Description
As shown in fig. 1 or 2, the utility model relates to a novel high-speed railway tunnel invert drainage pressure relief device in cold district, including invert 3, 3 upper surfaces of invert are provided with invert filler 4, including leading water pipe 1, 1 bottom free ends of leading water pipe pass invert filler 4 and place in invert 3, are provided with a plurality of infiltration holes 2 on the 1 bottom lateral wall of leading water pipe, and 1 top of leading water pipe is provided with a steel sleeve 9, and 1 intercommunication setting of leading water pipe is in steel sleeve 9 bottom center department, and steel sleeve 9 sets up in invert filler 4, and steel sleeve 9 lateral wall is provided with heat preservation sleeve 6 along circumference, and heat preservation sleeve 6 sets up in invert filler 4, and steel sleeve 9 and heat preservation sleeve 6 top are provided with fixed bolster 7.
Furthermore, the horizontal surface smooth motion is provided with the floating piston 8 in the steel sleeve 9, and 8 lateral wall edges of floating piston laminate with 9 inside walls of steel sleeve. The piston has the effect that under the action of the water pressure in the water conduit 1, water in the construction joint of the inverted arch 3 can be discharged out of the inverted arch of the tunnel through the movable piston 8, and water on the upper part of the inverted arch 3 enters the steel pipe sleeve 9 and cannot enter the water conduit 1 through the movable piston 8.
Further, a heat insulating material 5 is arranged between the steel sleeve 9 and the heat insulating sleeve 6. The freezing effect of the water in the steel pipe sleeve 9 and the water conduit 1 is reduced under the combined action of the inverted arch filler 4 and the heat insulation sleeve 6. And under the action of the water pressure at the lower part of the inverted arch 3, the flowing water does not freeze in the process of passing through the water conduit 1 and the movable piston 8.
Further, the fixed bolster 7 is long rod-shaped and has two, and two fixed bolster 7 middle parts are connected through a fixed bolster activity fulcrum 11, and 7 tip of fixed bolster all are provided with bolt 10, and the free end of bolt 10 sets up on invert filler 4, and fixed bolster 7 passes through bolt 10 promptly and invert filler 4 fixed connection. Because the wind pressure in the tunnel is high when the train runs in the high-speed railway tunnel, in order to prevent the drainage device from falling off, the double protection of two fixing modes of concrete pouring and a fixing bracket 7 is adopted. And connect two supports 7 and both can guarantee to consolidate the effect, can guarantee to consolidate the effect again between two supports 7 each other, prevent that a support 7 is not hard up and influence whole reinforcement effect.
Further, a water conduit 1 provided with water seepage holes 2 is positioned in the inverted arch 3 and at the bottom of the inverted arch filler 4.
Furthermore, the water seepage holes 2 are arranged in a quincunx shape.
In the use process, when groundwater gets into tunnel invert construction joint and forms local water pressure, the infiltration hole 2 that the quincunx of groundwater effect lower part was arranged through leading pipe 1 lower part gets into leading pipe 1 under the effect of water pressure. After passing through the water conduit 1, the water flows are discharged outside the inverted arch filler 4 after passing through the steel sleeve 9 and the movable piston 8, and the water flows are collected on the upper surface of the inverted arch filler 4 and discharged out of the tunnel hole in the side ditch, so that the water pressure at the lower part of the inverted arch filler 4 is relieved, and the damage of the water pressure to the inverted arch filler 4 is reduced.
When accumulated water flows through the surface of the device on the surface of the tunnel invert filler 4, the upper water cannot enter the water conduit 1 due to the action effect of the movable piston 8, and the device realizes the effect of only draining and not entering water for the tunnel invert. Particularly in cold seasons, because a large amount of water below the inverted arch filler 4 is reduced, even if a small amount of water in a horizontal construction joint is frozen, a large freezing and swelling force is not formed to affect the structural safety of the inverted arch filler 4.
When using in cold season, when invert bottom water pressure is still great, for preventing the utility model discloses device upper end drainage position freezes and influences the discharge of water, and pours heat preservation sleeve 6 in invert filler 4 to set up insulation material 5 between heat preservation sleeve 6 and steel sleeve 9. On one hand, when the water in the invert filler 4 is not frozen and the water pressure still exists, the heat preservation measures can ensure that the water in the steel sleeve 9 is not frozen first to influence the drainage of the water under the invert filler 4; on the other hand, pour heat preservation sleeve 6 in invert filler 4 to under the double-deck protection of fixed bolster 7, can guarantee the utility model discloses the installation of device is firm, thereby can not cause to drop by the influence of train piston wind and threaten to influence driving safety.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (6)
1. The utility model provides a novel high-speed railway tunnel invert drainage pressure release in cold district device, includes invert (3), invert (3) upper surface is provided with invert filler (4), its characterized in that: including leading water pipe (1), leading water pipe (1) bottom free end passes invert filler (4) and place in invert (3), be provided with a plurality of infiltration holes (2) on leading water pipe (1) bottom lateral wall, leading water pipe (1) top is provided with a steel sleeve (9), leading water pipe (1) intercommunication sets up steel sleeve (9) bottom center department, steel sleeve (9) set up in invert filler (4), just steel sleeve (9) lateral wall is provided with insulation sleeve (6) along circumference, insulation sleeve (6) set up in invert filler (4), steel sleeve (9) with insulation sleeve (6) top is provided with fixed bolster (7).
2. The novel inverted arch drainage and pressure relief device for the high-speed railway tunnel in the cold region as claimed in claim 1, wherein: the horizontal sliding in the steel sleeve (9) is provided with a movable piston (8), and the edge of the side wall of the movable piston (8) is attached to the inner side wall of the steel sleeve (9).
3. The novel inverted arch drainage and pressure relief device for the high-speed railway tunnel in the cold region as claimed in claim 1 or 2, wherein: and a heat insulation material (5) is arranged between the steel sleeve (9) and the heat insulation sleeve (6).
4. The novel inverted arch drainage and pressure relief device for the high-speed railway tunnel in the cold region as claimed in claim 1, wherein: fixed bolster (7) are long rod form and have two, and two fixed bolster (7) middle part is connected through a fixed bolster activity fulcrum (11), fixed bolster (7) tip all is provided with bolt (10), bolt (10) free end sets up on invert filler (4), promptly fixed bolster (7) pass through bolt (10) with invert filler (4) fixed connection.
5. The novel inverted arch drainage and pressure relief device for the high-speed railway tunnel in the cold region as claimed in claim 1, wherein: the water guide pipe (1) provided with the water seepage holes (2) is positioned in the inverted arch (3) and at the bottom of the inverted arch filler (4).
6. The novel inverted arch drainage and pressure relief device for the high-speed railway tunnel in the cold region as claimed in claim 1, wherein: the water seepage holes (2) are arranged in a quincunx shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022996032.5U CN213953678U (en) | 2020-12-11 | 2020-12-11 | Novel inverted arch drainage and pressure relief device for high-speed railway tunnel in cold region |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022996032.5U CN213953678U (en) | 2020-12-11 | 2020-12-11 | Novel inverted arch drainage and pressure relief device for high-speed railway tunnel in cold region |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213953678U true CN213953678U (en) | 2021-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022996032.5U Active CN213953678U (en) | 2020-12-11 | 2020-12-11 | Novel inverted arch drainage and pressure relief device for high-speed railway tunnel in cold region |
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| Country | Link |
|---|---|
| CN (1) | CN213953678U (en) |
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- 2020-12-11 CN CN202022996032.5U patent/CN213953678U/en active Active
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