CN207908107U - A kind of duct pieces of shield tunnel seam multi layer waterproof experimental rig - Google Patents
A kind of duct pieces of shield tunnel seam multi layer waterproof experimental rig Download PDFInfo
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- CN207908107U CN207908107U CN201820312476.2U CN201820312476U CN207908107U CN 207908107 U CN207908107 U CN 207908107U CN 201820312476 U CN201820312476 U CN 201820312476U CN 207908107 U CN207908107 U CN 207908107U
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Abstract
The utility model discloses a kind of duct pieces of shield tunnel seam multi layer waterproof experimental rigs, belong to shield tunnel project technical field, the waterproof test device be provided in, in, the various sizes of gasket grooves of Wai Sandao, three kinds of various sizes of gaskets can be tested, the experiment of twice waterproof and three waterproofs can also be realized simultaneously, more shield tunnel seam waterproof environment can be simulated really and comprehensively, disclosure satisfy that the needs that existing tunnel technology requires.
Description
Technical field
The utility model belongs to shield tunnel project technical field, and in particular to a kind of duct pieces of shield tunnel seam multiple tracks is anti-
Water test device is, it can be achieved that simulation shield tunnel segment joint waterproof sealing gasket multi layer waterproof under straight joint, staggered joint erection state
Watertightness verifying attachment is tested.
Background technology
With the fast development of Urbanization in China, the tunnel constructions demand such as subway, rivers channel is very big, shield tunnel
Road has consequence as main tunnel form.The waterproof problem of underground engineering is closed by numerous technical staff always
Note, and for shield tunnel, since for a long time by the immersion of underground water and corrosion, water resistance is most important.Shield tunnel
Waterproof is not only related to tunnel and uses the normal performance of function, but also is related to the length of tunnel service life.Shield tunnel is anti-
Water includes section of jurisdiction self waterproofing, seam waterproof and hand hole waterproof.Wherein, pipe-plate lining block makes in pre-fabricated factory, and production quality has
It ensures, anti-permeability performance is good, the most ripe；Seam waterproof is the weakest, also mostly important, so the emphasis of shield tunnel waterproof
It is between section of jurisdiction block and block and the waterproof of ring and the seam of ring.Due to the difference of Tunnel Engineering geological conditions and tunnel structure,
Waterproofing design condition is all different, therefore need to often carry out a large amount of simulation test, to select suitable seam waterproof material and break
Face pattern.Currently, most of engineering is all made of the ternary of single material (chemical stability is good, ageing-resistant and water resistance is excellent)
Second the third expanded rubber gasket, also by the composite gland bush formed using EPDM expanded rubber and water swelling rubber.It is close
The principle of envelope is that under pressure, the internal stress generated by the deformation of sealing joint strip internal holes is allowed to contact at two
Face generates huge stress and hermetic seal.
Seam waterproof experiment is used for simulating waterproof product (the swollen expanded rubber sealing of such as EPT rubber packing pad and chance water
Pad) hydraulic pressure environment residing under actual working state, to determine that can designed and manufacture product hold in work process
Leakage is generated without causing by external hydraulic pressure, and its pre-determined characteristics can be played, reaches the reliability of predetermined age.
Existing duct pieces of shield tunnel seam waterproof is mostly the water proof structure form of single track elastic sealing gasket, be there is no both at home and abroad
Simultaneously for the seam waterproof performance test apparatus of multiple defence line waterstop sealing, it is impossible to meet the diameters of shield tunnel gradually to increase
The trend that big and waterproof requirement improves,
Utility model content
The purpose of this utility model is that solve the above-mentioned problems and provides a kind of duct pieces of shield tunnel seam multiple tracks
Waterproof test device.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of duct pieces of shield tunnel seam multi layer waterproof experimental rig, including unit substrate, the unit substrate offer
The gasket groove of loop configuration；
The gasket groove has three, and respectively internal layer gasket groove, middle level gasket groove, outer layer gasket
Groove, the groove width of gasket groove described in three are all different；
The unit substrate has two pieces, is the Demountable being bolted between two pieces of unit substrates；
Internal layer, middle level, the outer layer gasket groove of two pieces of unit substrates correspond opposite layout；
The link bolt hole of two pieces of unit substrates is L-type bolt hole；
One of unit substrate is provided with inlet outlet hole at three, and it is close to respectively lead to internal layer for the inlet outlet hole at three
Raised zones between intermediate raised zones, middle level gasket groove and internal layer gasket groove that packing groove is enclosed, in
Raised zones between layer gasket groove and outer layer gasket groove.
As a kind of technical solution of this patent selection, the gasket groove is rectangle annular groove.、
As this patent selection a kind of technical solution, the inlet outlet hole be provided with for water pressure control system and water
The water swivel of pressure gauge connection.
As a kind of technical solution of this patent selection, the one side of the unit substrate is provided with the gasket groove
And another side is provided with several gussets.
As a kind of technical solution of this patent selection, the edge part of the unit substrate, which is provided with, is used to indicate changing of the relative positions amount
Graduation mark, horizontal direction of the changing of the relative positions amount between upper and lower unit substrate be staggered displacement.
As a kind of technical solution of this patent selection, the edge part of the unit substrate is provided with for installing steel plate washer
Spacer film trap, the spacer film trap between two module unit substrates corresponds and is laid out in opposite directions.
The beneficial effects of the utility model are：
The waterproof test device be provided in, in, the various sizes of gasket grooves of Wai Sandao, can be to three kinds of different sizes
Gasket tested, while can also realize the experiment of twice waterproof and three waterproofs, being capable of truer and comprehensive mould
Quasi- shield tunnel seam waterproof environment disclosure satisfy that the needs that existing tunnel technology requires.
Description of the drawings
Fig. 1 is the structural schematic diagram of duct pieces of shield tunnel seam multi layer waterproof experimental rig described in the utility model；
Fig. 2 is the structural schematic diagram that unit substrate described in the utility model is equipped with gusset side；
Fig. 3 is the structural schematic diagram that unit substrate described in the utility model offers gasket groove side；
In figure：1- unit substrates, 2- bolts, 3- water swivels, 4- gussets, 5- inlet outlet holes, 6- graduation marks, 7- adjusting gaskets
Slot, 8-L type bolts hole, 9- gasket grooves.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings：
In conjunction with shown in Fig. 1, Fig. 2 and Fig. 3, the utility model includes unit substrate 1, and unit substrate 1 offers loop configuration
Gasket groove 9；
Gasket groove 9 has three, and respectively internal layer gasket groove, middle level gasket groove, outer layer gasket ditch
Slot, the groove width of gasket groove 9 described in three are all different；
Unit substrate 1 has two pieces, is the Demountable connected by bolt 2 between two module unit substrates 1；
Internal layer, middle level, the outer layer gasket groove of two module unit substrates 1 correspond opposite layout；
The link bolt hole of two module unit substrates 1 is L-type bolt hole 8；
One of unit substrate 1 is provided with inlet outlet hole 5 at three, and inlet outlet hole 5 respectively leads to internal layer gasket at three
Raised zones, middle level between intermediate raised zones, middle level gasket groove and internal layer gasket groove that groove is enclosed are close
Raised zones between packing groove and outer layer gasket groove.
As a kind of technical solution of this patent selection, gasket groove is rectangle annular groove.、
As this patent selection a kind of technical solution, inlet outlet hole 5 be provided with for water pressure control system and hydraulic pressure
The water swivel 3 of power table connection.
As a kind of technical solution of this patent selection, the one side of unit substrate 1 is provided with gasket groove and another
Side is provided with several gussets 4, and the design of gusset 4 makes 1 intensity higher of unit substrate.
As a kind of technical solution of this patent selection, the edge part of unit substrate 1, which is provided with, is used to indicate changing of the relative positions amount
Graduation mark 6, horizontal direction of the changing of the relative positions amount between upper and lower unit substrate 1 are staggered displacement.
As a kind of technical solution of this patent selection, the edge part of unit substrate 1 is provided with for installing steel plate washer
Spacer film trap 7, the spacer film trap 7 between two module unit substrates 1 are corresponded and are laid out in opposite directions.
The operation principle of the utility model is as follows：
Unit substrate 1 is equipped with the gasket groove of three difference size scales, gasket is put into wherein corresponding together
(various sizes of gasket correspondence is installed in the gasket groove that size matches) is then reassembled in gasket groove
At structure shown in FIG. 1, extruding is generated after assembled densification between gasket, to form cavity inside device；
By water swivel 3 by be formed by the corresponding inlet outlet hole 5 of cavity access water pressure control system flow port and
Water pressure table, initial water pressure table are opened, and from water pressure control system to cavity water filling is formed by, are discharged from water pressure table empty
Air in chamber is discharged in cavity after all air, closes the water pressure table of connection inlet outlet hole 5, forms inside water pressure；
Interconnecting piece between unit substrate 1 can carry out changing of the relative positions adjusting, according to dress due to being designed with L-type bolt hole 8
The graduation mark 6 for setting side adjusts changing of the relative positions amount；
Three seals pad groove, using wherein one, then correspond to a kind of single track gasket waterproof of size, while using it
Middle twice then correspond to double sealing pad waterproof, while using wherein three, then correspond to three seals pad waterproof, so can mould
The water proof environment of quasi- shield tunnel gasket, verifies the water resistance of gasket, to for Tunnel Engineering seam waterproof design,
It safeguards and test basis is provided.
Duct pieces of shield tunnel seam multi layer waterproof experimental rig described in the utility model, major design point be in, in, it is outer
Three seals pad groove, and unit substrate 1 shown in the figure is slab construction, but in actual design, unit substrate 1 is not
Be limited to slab construction or right angle harden structure, it is designed it is interior, in, external seal pad groove be both needed to the closing for head and the tail connection
Slot is folded according to the structure of unit substrate 1.
The above is only the preferred embodiments of the present utility model only, is not intended to limit the utility model, all in this practicality
All any modification, equivalent and improvement etc., should be included in the guarantor of the utility model made by within novel spirit and principle
It protects in range.
Claims (6)
1. a kind of duct pieces of shield tunnel seam multi layer waterproof experimental rig, including unit substrate, the unit substrate offer ring
The gasket groove of shape structure, it is characterised in that：
The gasket groove has three, and respectively internal layer gasket groove, middle level gasket groove, outer layer gasket ditch
Slot, the groove width of gasket groove described in three are all different；
The unit substrate has two pieces, is the Demountable being bolted between two pieces of unit substrates；
Internal layer, middle level, the outer layer gasket groove of two pieces of unit substrates correspond opposite layout；
The link bolt hole of two pieces of unit substrates is L-type bolt hole；
One of unit substrate is provided with inlet outlet hole at three, and the inlet outlet hole respectively leads to internal layer gasket at three
Raised zones, middle level between intermediate raised zones, middle level gasket groove and internal layer gasket groove that groove is enclosed are close
Raised zones between packing groove and outer layer gasket groove.
2. duct pieces of shield tunnel seam multi layer waterproof experimental rig according to claim 1, which is characterized in that the sealing
Pad groove is rectangle annular groove.
3. duct pieces of shield tunnel seam multi layer waterproof experimental rig according to claim 1, which is characterized in that the discrepancy
Water hole is provided with the water swivel for being connect with water pressure control system and water pressure table.
4. duct pieces of shield tunnel seam multi layer waterproof experimental rig according to claim 1, which is characterized in that the unit
The one side of substrate is provided with the gasket groove and another side is provided with several gussets.
5. duct pieces of shield tunnel seam multi layer waterproof experimental rig according to claim 1, which is characterized in that the unit
The edge part of substrate is provided with the graduation mark for being used to indicate changing of the relative positions amount, level side of the changing of the relative positions amount between upper and lower unit substrate
To the displacement that is staggered.
6. duct pieces of shield tunnel seam multi layer waterproof experimental rig according to claim 1, which is characterized in that the unit
The edge part of substrate is provided with the spacer film trap for installing steel plate washer, and the spacer film trap between two module unit substrates is one by one
It corresponds to and is laid out in opposite directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820312476.2U CN207908107U (en) | 2018-03-07 | 2018-03-07 | A kind of duct pieces of shield tunnel seam multi layer waterproof experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820312476.2U CN207908107U (en) | 2018-03-07 | 2018-03-07 | A kind of duct pieces of shield tunnel seam multi layer waterproof experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207908107U true CN207908107U (en) | 2018-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820312476.2U Active CN207908107U (en) | 2018-03-07 | 2018-03-07 | A kind of duct pieces of shield tunnel seam multi layer waterproof experimental rig |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562402A (en) * | 2018-03-07 | 2018-09-21 | 西南交通大学 | A kind of duct pieces of shield tunnel seam multi layer waterproof experimental rig |
| CN114509350A (en) * | 2022-02-15 | 2022-05-17 | 中南大学 | Segment joint double-channel waterproof test device and method for simulating hydraulic action of inner cavity |
-
2018
- 2018-03-07 CN CN201820312476.2U patent/CN207908107U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108562402A (en) * | 2018-03-07 | 2018-09-21 | 西南交通大学 | A kind of duct pieces of shield tunnel seam multi layer waterproof experimental rig |
| CN114509350A (en) * | 2022-02-15 | 2022-05-17 | 中南大学 | Segment joint double-channel waterproof test device and method for simulating hydraulic action of inner cavity |
| CN114509350B (en) * | 2022-02-15 | 2024-02-23 | 中南大学 | Segment joint double-channel waterproof test device and method for simulating inner cavity water pressure effect |
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