CN206092002U - Tunnel bear building -up that reduces existing tunnel invert water pressure constructs - Google Patents
Tunnel bear building -up that reduces existing tunnel invert water pressure constructs Download PDFInfo
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- CN206092002U CN206092002U CN201621114040.XU CN201621114040U CN206092002U CN 206092002 U CN206092002 U CN 206092002U CN 201621114040 U CN201621114040 U CN 201621114040U CN 206092002 U CN206092002 U CN 206092002U
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- inverted arch
- tunnel
- pressure relief
- steel pipe
- relief vent
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Abstract
The utility model discloses a tunnel bear building -up that reduces existing tunnel invert water pressure constructs, include to set gradually inverted arch filling layer, inverted arch and the country rock at tunnel bottom under to by last the central point of inverted arch filling layer puts and vertically is provided with central ditch, set up the pressure relief vent that is the matrix and arranges respectively in the central ditch with on the inverted arch filling layer of central ditch both sides, every pressure relief vent and horizontal direction be perpendicular inverted arch filling layer, inverted arch and the country rock of just running through mutually, the pressure relief vent of central ditch both sides is by pipe connection to central ditch, be provided with the release steel pipe in the pressure relief vent, and fill the stifled water sand of rapid hardening and starch between release steel pipe and inverted arch, inverted arch filling layer. The utility model discloses can effectively reduce existing tunnel invert water pressure to rouse on in time preventing fracture infiltration of tunnel invert filling structure uplift and track, ensure the operation that the railway is normal safe.
Description
Technical field
This utility model belongs to existing tunnel defect treatment technology field, more particularly to a kind of reduction existing tunnel inverted arch water
The tunnel bottom structure of pressure.
Background technology
In recent years, developing rapidly with Chinese high ferro, high ferro tunnel increases, and the harm that tunnel water damage causes is just progressively
Highlight, with characteristics such as burst, serious, the regulation difficulties of consequence；Inverted arch filling, track that tunnel water damage can cause etc. rise protuberance and
The disasters such as bottom slab crack infiltration.
The inverted arch packed layer for solving to be caused by inverted arch water pressure swells the tunnel defect such as drum on crack and water leakage, track, can
In design, work progress, to lay splash guard at tunnel bottom and row lead pervious bed (including blind pipe) to improve the water-proof strip in tunnel
Part, alleviates the water pressure of inverted arch；But, splash guard is laid at tunnel bottom, the row of applying leads pervious bed, with certain difficulty of construction,
And it is still not thorough enough for the mechanism understanding of this novel tunnel disease both at home and abroad at present, therefore in structure design of tunnel, lead to
Subsoil water exhaust system is not still set in the case of often under inverted arch.
After tunnel inverted arch is closed or after the completion of construction, as country rock seepage field tends towards stability, the water on inverted arch is acted on
Pressure can gradually increase, so as to cause inverted arch to be subject to the effect of water pressure of certain value；Particularly in high water head water abundant ground, tunnel
Road inverted arch easily occur inverted arch hydraulic pressure it is excessive and cause tunnel bottom structure protuberance crack and water leakage, the tunnel defect phenomenon such as drum on track.
Therefore, remedied in measure it is difficult to lead in inverted arch subsoil water row for existing tunnel, it should take reliable regulation in time to arrange
Drum on prevention tunnel inverted arch interstitital texture protuberance crack and water leakage and track is applied, to guarantee the operation of railway normal safe.
Utility model content
In order to overcome the shortcomings of art methods, the purpose of this utility model is to propose that a kind of existing tunnel that reduces is faced upward
The tunnel bottom structure of arch water pressure, can effectively reduce inverted arch water pressure, so as to prevent tunnel inverted arch interstitital texture protuberance to open in time
Drum on infiltration and track is split, to guarantee the operation of railway normal safe.
To realize object above, this utility model is using technical scheme：A kind of reduction existing tunnel inverted arch water pressure
Tunnel bottom structure, including the inverted arch packed layer, inverted arch and the country rock that are successively set on tunnel bottom from top to bottom, in inverted arch filling
The center of layer is vertically arranged with Central drain；Divide in the Central drain and on the inverted arch packed layer of Central drain both sides
She Zhi be in the pressure relief vent of matrix arrangement, each pressure relief vent and horizontal direction it is perpendicular and through inverted arch packed layer, inverted arch and
Country rock, the pressure relief vent of the Central drain both sides is connected to Central drain by pipeline；It is provided with the pressure relief vent and unloads compressed steel
Pipe, and rapid hardening water blockoff mortar is filled between release steel pipe and inverted arch, inverted arch packed layer.
It is further that the release steel pipe is divided into from top to bottom packed layer and suppression arch section and country rock section, in the country rock
Apopore is provided with the release steel pipe of section；Infiltration in country rock is penetrated in release steel pipe by apopore, reduces inverted arch
The purpose of hydraulic pressure.
It is further that the apopore is distributed in plum blossom-shaped, the aperture of apopore is 10-15mm, between the hole of apopore
Away from for 8-10cm.
It is further, pervious bed of the parcel with reverse filter effect on the outside of release steel pipe section mutually overlap with country rock, and
Rubber washer is set in suppression arch and packed layer and country rock interface, prevents rapid hardening water blockoff mortar from entering release steel pipe mutually overlap with country rock
Section outside prevents country rock infiltration.
It is further that 3 pressure relief vents are provided with every cross section transverse of tunnel bottom, pressure relief vent stretches to inverted arch bottom
1-2m under face, the longitudinal pitch of pressure relief vent is 2-3m.
It is further, a diameter of φ 130 of the pressure relief vent, a diameter of φ 108 of corresponding release steel pipe；This standard
Versatility is stronger, and can be applied to most inverted arch hydraulic pressure causes drum tunnel on tunnel inverted arch interstitital texture protuberance crack and water leakage and track
In road paragraph.
It is further that the release steel pipe in the Central drain is higher by the top margin of Central drain；Guarantee to be seeped water under inverted arch
Center gutter can be smoothly entered, and the water in the gutter of center then can not be carried out in the country rock of inverted arch bottom by steel pipe.
Using the beneficial effect of the technical program：
It is rationally reliable right that structure designed by this utility model is proposed according to subsoil water seepage theory, hydraulic principle etc.
Plan, can effectively reduce inverted arch water pressure, can in time prevent drum disease on inverted arch packed layer protuberance crack and water leakage, track, protect
The safe operation of card railway tunnel；
Structure designed by this utility model is simple and convenient to operate with construction, effect reliable and does not affect railway normal
The advantages of operation.
Description of the drawings
Fig. 1 is a kind of elevation cross-sectional view of tunnel bottom structure for reducing existing tunnel inverted arch water pressure of the present utility model；
Fig. 2 is a kind of top view of tunnel bottom structure for reducing existing tunnel inverted arch water pressure of the present utility model；
Fig. 3 is the structural representation of release steel pipe in this utility model；
Wherein, 1 is inverted arch packed layer, and 2 is inverted arch, and 3 is country rock, and 4 is Central drain, and 5 is pressure relief vent, and 6 is release steel pipe,
7 is apopore, and 8 is rubber washer.
Specific embodiment
In order that the purpose of utility model, technical scheme and advantage are clearer, below in conjunction with the accompanying drawings to this utility model
It is further elaborated.
In the present embodiment, referring to shown in Fig. 1-Fig. 2, a kind of tunnel bottom structure for reducing existing tunnel inverted arch water pressure is wrapped
Inverted arch packed layer 1, inverted arch 2 and the country rock 3 for being successively set on tunnel bottom from top to bottom is included, in the inverted arch packed layer 1
Heart position is vertically arranged with Central drain 4；In the Central drain 4 and on the inverted arch packed layer 1 of the both sides of Central drain 4 respectively
Pressure relief vent 5 in matrix arrangement is set, and each pressure relief vent 5 and horizontal direction are perpendicular and through inverted arch packed layer 1, inverted arch 2
With country rock 3, the pressure relief vent 5 of the both sides of the Central drain 4 is connected to Central drain 4 by pipeline；It is provided with the pressure relief vent 5
Release steel pipe 6, and rapid hardening water blockoff mortar is filled between release steel pipe 6 and inverted arch 2, inverted arch packed layer 1.
As the prioritization scheme of above-described embodiment, as shown in figure 3, the release steel pipe 6 be divided into from top to bottom packed layer and
Suppression arch section and country rock section, arrange apopore 7 on the release steel pipe 6 of the country rock section；Seep water in country rock 3 and entered by apopore
In release steel pipe 6, the purpose of inverted arch hydraulic pressure is reduced.
The apopore 7 is distributed in plum blossom-shaped, and the aperture of apopore 7 is 10-15mm, and the pitch of holes of apopore 7 is 8-
10cm。
Pervious bed of the parcel with reverse filter effect on the outside of the section mutually overlap with country rock of the release steel pipe 6, increases reverse filter effect,
In suppression arch and fill interval and country rock section interface rubber washer 8 be set, prevent rapid hardening water blockoff mortar into release steel pipe 6 with enclose
Rock 3 mutually overlaps section outside and prevents country rock infiltration.
As the prioritization scheme of above-described embodiment, 3 pressure relief vents 5 are provided with every cross section transverse of tunnel bottom, are unloaded
Pressure hole 5 stretches to 1-2m under the bottom surface of inverted arch 2, and the longitudinal pitch of pressure relief vent 5 is 2-3m.
Preferably, a diameter of φ 130 of the pressure relief vent 5, a diameter of φ 108 of corresponding release steel pipe 6；This standard
Versatility is stronger, and can be applied to most inverted arch hydraulic pressure causes drum tunnel on tunnel inverted arch interstitital texture protuberance crack and water leakage and track
In road paragraph.
Used as the prioritization scheme of above-described embodiment, the release steel pipe 6 in the Central drain 4 is higher by the top of Central drain 4
Side；Guarantee that 2 times infiltrations of inverted arch can smoothly enter center gutter, and the water in the gutter of center then can not be carried out by steel pipe
In the bottom country rock 3 of inverted arch 2.
In order to be better understood from this utility model, below once complete description is made to operation principle of the present utility model：
1. determine and bore the paragraph of pressure relief vent 5 and position：Determining that the water pressure of inverted arch 2 is larger causes tunnel inverted arch packed layer 1 to swell
Drum paragraph, determines the parameters such as the depth of pressure relief vent 5 and longitudinal pitch on crack and water leakage, track.
2. pressure relief vent 5 is bored：According to above-mentioned parameter, pressure relief vent 5 is bored successively in position using rig.
3. release steel pipe 6 is installed：Country rock section will be goed deep in release steel pipe 6, and be provided with the outside parcel tool of the pipe of apopore 7
There is the pervious bed of reverse filter effect, and rubber washer 8 is installed at release steel pipe 6 and the basal surface position of inverted arch 2；Release steel pipe 6 is inserted
In entering pressure relief vent 5, then rapid hardening water blockoff mortar is filled up in release steel pipe 6 and inverted arch 2 and the gap of inverted arch packed layer 1.
4. draining：Release steel pipe 6 is higher by the design water surface in Central drain 4, it is ensured that during 2 times infiltrations of inverted arch can be entered smoothly
Heart gutter, and the water in the gutter of center then can not be carried out in the bottom country rock 3 of inverted arch 2 by release steel pipe 6；Both sides pressure relief vent
Water in 5 enters Central drain 4 using lateral connection pipeline.
Specific embodiment：
Pressure relief vent 5 is beaten in tunnel center gutter and both sides, per section pressure relief vent 5 quantity 3, the diameter of pressure relief vent 5 are arranged
φ 130,2～3m of longitudinal pitch, in order to reach optimal precipitation pressure effect, the depth of pressure relief vent 5 is that 1-2m is to the bottom surface of inverted arch 2
Preferably.
Wherein release steel pipe 6 is constructed：Diameter of steel tube φ 108,2 times country rock section pipe shafts of inverted arch are provided with apopore 7；The water outlet
Hole 7：10～15mm of aperture, pitch of holes is 8～10cm, in quincuncial arrangement.
Ultimate principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry it should be appreciated that this utility model is not restricted to the described embodiments, described in above-described embodiment and description
Simply illustrate principle of the present utility model, on the premise of without departing from this utility model spirit and scope, this utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within the range of claimed this utility model.This utility model
Claimed scope is by appending claims and its equivalent thereof.
Claims (7)
1. a kind of tunnel bottom structure for reducing existing tunnel inverted arch water pressure, it is characterised in that including being successively set on from top to bottom
The inverted arch packed layer (1) of tunnel bottom, inverted arch (2) and country rock (3), longitudinally set in the center of the inverted arch packed layer (1)
It is equipped with Central drain (4)；It is respectively provided with the Central drain (4) and on the inverted arch packed layer (1) of Central drain (4) both sides
Pressure relief vent (5) in matrix arrangement, each pressure relief vent (5) is with horizontal plane and through inverted arch packed layer (1), inverted arch (2)
With country rock (3), the pressure relief vent (5) of Central drain (4) both sides is connected to Central drain (4) by pipeline；In the pressure relief vent
(5) release steel pipe (6) is provided with, and rapid hardening water blockoff is filled between release steel pipe (6) and inverted arch (2), inverted arch packed layer (1)
Mortar.
2. it is according to claim 1 it is a kind of reduce existing tunnel inverted arch water pressure tunnel bottom structure, it is characterised in that it is described
Release steel pipe (6) is respectively from top to bottom packed layer and inverted arch section and country rock section, sets on the release steel pipe (6) of the country rock section
Put apopore (7).
3. it is according to claim 2 it is a kind of reduce existing tunnel inverted arch water pressure tunnel bottom structure, it is characterised in that it is described
Apopore (7) is distributed in plum blossom-shaped, and the aperture of apopore (7) is 10-15mm, and the pitch of holes of apopore (7) is 8-10cm.
4. it is according to claim 3 it is a kind of reduce existing tunnel inverted arch water pressure tunnel bottom structure, it is characterised in that in institute
Release steel pipe (6) pervious bed of the section outside parcel with reverse filter effect mutually overlap with country rock is stated, and in suppression arch and packed layer and country rock
Interface arranges rubber washer (8).
5. it is according to claim 1 it is a kind of reduce existing tunnel inverted arch water pressure tunnel bottom structure, it is characterised in that in tunnel
3 pressure relief vents (5) are provided with every cross section of road bottom, pressure relief vent (5) is deeply to 1-2m under inverted arch (2) bottom surface, pressure relief vent
(5) longitudinal pitch is 2-3m.
6., according to a kind of tunnel bottom structure of the reduction existing tunnel inverted arch water pressure described in claim 4 or 5, its feature exists
In a diameter of φ 130 of the pressure relief vent (5), a diameter of φ 108 of corresponding release steel pipe (6).
7. according to a kind of tunnel bottom structure of the reduction existing tunnel inverted arch water pressure described in claim 6, it is characterised in that institute
State the top margin that the release steel pipe (6) in Central drain (4) is higher by Central drain (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621114040.XU CN206092002U (en) | 2016-10-12 | 2016-10-12 | Tunnel bear building -up that reduces existing tunnel invert water pressure constructs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621114040.XU CN206092002U (en) | 2016-10-12 | 2016-10-12 | Tunnel bear building -up that reduces existing tunnel invert water pressure constructs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206092002U true CN206092002U (en) | 2017-04-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201621114040.XU Active CN206092002U (en) | 2016-10-12 | 2016-10-12 | Tunnel bear building -up that reduces existing tunnel invert water pressure constructs |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630706A (en) * | 2017-10-24 | 2018-01-26 | 中交第二航务工程局有限公司 | A kind of tunnel bottom structure and construction method for eliminating highland nip tunnel inverted arch protuberance |
| CN107905811A (en) * | 2017-12-27 | 2018-04-13 | 中铁二院工程集团有限责任公司 | The hollow longeron of foundation carries domes without the lining cutting of inverted arch type and its drainage system |
| CN107938463A (en) * | 2017-12-22 | 2018-04-20 | 中交公局海威工程建设有限公司 | A kind of road seepage-proof structure and tunnel road surface infiltration Treatment Methods |
| CN108316940A (en) * | 2018-01-10 | 2018-07-24 | 河海大学 | For alleviating the pipeline and enter flow through shaft connected structure that deep tunnel trapped air mass is discharged |
| CN109578018A (en) * | 2019-01-22 | 2019-04-05 | 青岛理工大学 | A kind of tunnel inverted arch structure of anti-pucking |
| CN110617077A (en) * | 2019-09-20 | 2019-12-27 | 中铁十八局集团有限公司 | Construction method for preventing floor heave of tunnel bottom inverted arch |
-
2016
- 2016-10-12 CN CN201621114040.XU patent/CN206092002U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107630706A (en) * | 2017-10-24 | 2018-01-26 | 中交第二航务工程局有限公司 | A kind of tunnel bottom structure and construction method for eliminating highland nip tunnel inverted arch protuberance |
| CN107630706B (en) * | 2017-10-24 | 2023-05-26 | 中交第二航务工程局有限公司 | Tunnel bottom structure for eliminating tunnel inverted arch bulge in high-earth-pressure area and construction method |
| CN107938463A (en) * | 2017-12-22 | 2018-04-20 | 中交公局海威工程建设有限公司 | A kind of road seepage-proof structure and tunnel road surface infiltration Treatment Methods |
| CN107905811A (en) * | 2017-12-27 | 2018-04-13 | 中铁二院工程集团有限责任公司 | The hollow longeron of foundation carries domes without the lining cutting of inverted arch type and its drainage system |
| CN107905811B (en) * | 2017-12-27 | 2024-01-19 | 中铁二院工程集团有限责任公司 | Inverted arch-free lining of foundation hollow longitudinal beam bearing arch structure |
| CN108316940A (en) * | 2018-01-10 | 2018-07-24 | 河海大学 | For alleviating the pipeline and enter flow through shaft connected structure that deep tunnel trapped air mass is discharged |
| CN108316940B (en) * | 2018-01-10 | 2019-10-11 | 河海大学 | For alleviating the pipeline of deep tunnel trapped air mass discharge and entering flow through shaft connected structure |
| CN109578018A (en) * | 2019-01-22 | 2019-04-05 | 青岛理工大学 | A kind of tunnel inverted arch structure of anti-pucking |
| CN110617077A (en) * | 2019-09-20 | 2019-12-27 | 中铁十八局集团有限公司 | Construction method for preventing floor heave of tunnel bottom inverted arch |
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