CN207816533U - A kind of cross duct pieces of shield tunnel seam waterproof experimental rig - Google Patents
A kind of cross duct pieces of shield tunnel seam waterproof experimental rig Download PDFInfo
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- CN207816533U CN207816533U CN201820324197.8U CN201820324197U CN207816533U CN 207816533 U CN207816533 U CN 207816533U CN 201820324197 U CN201820324197 U CN 201820324197U CN 207816533 U CN207816533 U CN 207816533U
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- shield tunnel
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Abstract
The utility model discloses a kind of cross duct pieces of shield tunnel seam waterproof experimental rigs, belong to shield tunnel project technical field, the waterproof test device is cross-shaped configuration, energy needle carries out " ten " shape waterproof test, when removing two pieces of L-squares, and after tabular unit substrate of the new clothes with one piece of prior art, you can carry out "T"-shaped waterproof test, it assembles very convenient, can realize the experiment of multiple technologies scheme；The waterproof test device can be more true and comprehensively simulates shield tunnel seam waterproof environment, to realize that waterproof test result can be more accurate, it can more accurately reflect the performance development rule of true tunnel duct piece seam waterproof gasket, to which design, the maintenance for Tunnel Engineering segments' joints waterproofing provide relatively reliable test basis.
Description
Technical field
The utility model belongs to shield tunnel project technical field, and in particular to a kind of cross duct pieces of shield tunnel seam
Waterproof test device is, it can be achieved that simulation shield tunnel segment joint waterproof sealing gasket " cross under straight joint, staggered joint erection state
Type " waterproof 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.
Shield tunnel is formed by one piece one piece of pipe sheet assembling, between the ring of between section of jurisdiction and section of jurisdiction there are a large amount of longitudinal joint with
Circumferential weld, these are sewed with " one " shape, " T " shaped and " ten " shape.The pipe sheet assembling of shield tunnel generally has straight joint and the fissure of displacement two
Kind form, straight joint indicate that the longitudinal joint between ring and ring is mapped, and " ten " shape seam in this way accounts for the overwhelming majority；The fissure of displacement indicates ring and ring
Between longitudinal joint needs be staggered, therefore it is "T"-shaped seam account for the overwhelming majority, " ten " shape, which is sewn in staggered joint erection still, has certain probability to go out
It is existing.Duct pieces of shield tunnel both domestic and external is assembled at present takes staggered joint erection mostly, therefore seam waterproof tests spininess to "T"-shaped seam
Come carry out.
Existing duct pieces of shield tunnel seam waterproof spininess pair word seam and T words seam, there is no anti-for cross crotch both at home and abroad
The seam waterproof performance test apparatus of line waterstop sealing.
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 waterproof
Experimental rig.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of cross duct pieces of shield tunnel seam waterproof experimental rig, including unit substrate, the unit substrate open up
There is the gasket groove of rectangular frame structure；
The unit substrate is L-square, and the gasket groove is folded into two parts in length and breadth from centre position, described close
The folding of packing groove indulges portion and folds the two outside right-angle surfaces that transverse part is located at the L-square；
The unit substrate has four pieces, and four pieces of unit substrates are abutted against and constitute cross-shaped configuration, described in adjacent two pieces
It is the Demountable being bolted between unit substrate, the gasket groove between adjacent two pieces of unit substrates
Corresponding to be laid out in opposite directions, the link bolt hole between adjacent two module units substrate is L-type bolt hole, and one of unit substrate is set
It is equipped with inlet outlet hole, the inlet outlet hole is the through-hole for penetrating through the inside and outside both sides of unit substrate, and the inlet outlet hole leads to institute
State the intermediate raised zones that gasket groove is enclosed.
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, several gussets, the muscle are provided on the inside of the unit substrate
Plate is welded with two inside right-angle surfaces of the unit substrate simultaneously.
As a kind of technical solution of this patent selection, the gusset offers lifting through-hole.
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 setting of the outside right-angle surface of the unit substrate is useful
Spacer film trap between the spacer film trap of installation steel plate washer, adjacent two module units substrate is corresponded and is laid out in opposite directions.
The beneficial effects of the utility model are：
The waterproof test device is cross-shaped configuration, can needle carry out " ten " shape waterproof test, when removing two pieces of L-squares, and
After tabular unit substrate of the new clothes with one piece of prior art, you can carry out "T"-shaped waterproof test, assembling is very convenient, can
Realize the experiment of multiple technologies scheme；The waterproof test device can be more true and comprehensively simulates shield tunnel seam waterproof
Environment can more accurately reflect true tunnel duct piece seam waterproof gasket to realize that waterproof test result can be more accurate
Performance development rule, to for Tunnel Engineering segments' joints waterproofing design, maintenance relatively reliable test basis is provided.
Description of the drawings
Fig. 1 is the main structure diagram of duct pieces of shield tunnel seam waterproof experimental rig described in the utility model；
Fig. 2 is the overlooking structure diagram of duct pieces of shield tunnel seam waterproof experimental rig described in the utility model；
Fig. 3 is the structural schematic diagram of L-square water swivel installation side described in the utility model；
In figure：1- L-squares, 2- bolts, 3- water swivels, 4- gussets, 5- lift through-hole, 6- inlet outlet holes, 7- gasket ditches
Slot, 8- graduation marks, 9- spacer film traps, 10- steel plate washers, 11-L type bolts hole.
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 rectangle frame knot
The gasket groove 7 of structure；
Unit substrate 1 is L-square, and gasket groove 7 is folded into two parts in length and breadth from centre position, gasket groove 7
It folds the portion of indulging and folds the two outside right-angle surfaces that transverse part is located at L-square；
Unit substrate 1 has four pieces, and four module unit substrates 1 are abutted against and constitute cross-shaped configuration, adjacent two module units substrate 1 it
Between for the Demountable that is connected by bolt 2, the gasket groove 7 between adjacent two module units substrate 1 corresponds to opposite cloth
Office,
Link bolt hole between adjacent two module units substrate 1 is L-type bolt hole 11, and one of unit substrate 1 is set
It is equipped with inlet outlet hole 6, inlet outlet hole 6 is the through-hole for penetrating through 1 inside and outside both sides of unit substrate, and inlet outlet hole 6 leads to gasket groove
The 7 intermediate raised zones enclosed.
As this patent selection a kind of technical solution, inlet outlet hole 6 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 inside of unit substrate 1 is provided with several gussets 4, and gusset 4 is simultaneously
It is welded with two inside right-angle surfaces of unit substrate 1, to be reinforced to the device.
As a kind of technical solution of this patent selection, gusset 4 offers lifting through-hole 5, to facilitate tearing open for the device
Dress.
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 8, 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 the outside right-angle surface of unit substrate 1, which is provided with, to be used for
The spacer film trap 9 of steel plate washer 10 is installed, the spacer film trap 9 between adjacent two module units substrate 1 corresponds and opposite cloth
Office.
The operation principle of the utility model is as follows：
Gasket is put into gasket groove 7, Fig. 1 and cross-shaped configuration shown in Fig. 2 are then reassembled with into, it is assembled
Extruding is generated after densification between gasket, to form cavity inside device；
By water swivel 3 by be formed by the corresponding inlet outlet hole 6 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 6, forms inside water pressure；
Interconnecting piece between unit substrate 1 can carry out changing of the relative positions adjusting due to being designed with L-type bolt hole 11, according to
The graduation mark 8 of device side adjusts changing of the relative positions amount.
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 cross duct pieces of shield tunnel seam waterproof experimental rig, including unit substrate, the unit substrate offer
The gasket groove of rectangular frame structure, it is characterised in that：
The unit substrate is L-square, and the gasket groove is folded into two parts in length and breadth, the gasket from centre position
The folding of groove indulges portion and folds the two outside right-angle surfaces that transverse part is located at the L-square；
The unit substrate has four pieces, and four pieces of unit substrates are abutted against and constitute cross-shaped configuration, adjacent two pieces of units
It is the Demountable being bolted between substrate, the gasket groove between adjacent two pieces of unit substrates corresponds to
Opposite to be laid out, the link bolt hole between adjacent two module units substrate is L-type bolt hole, and one of unit substrate is provided with
Inlet outlet hole, the inlet outlet hole are the through-hole for penetrating through the inside and outside both sides of unit substrate, and the inlet outlet hole leads to described close
The intermediate raised zones that packing groove is enclosed.
2. cross duct pieces of shield tunnel seam waterproof experimental rig according to claim 1, which is characterized in that it is described go out
Blasthole is provided with the water swivel for being connect with water pressure control system and water pressure table.
3. cross duct pieces of shield tunnel seam waterproof experimental rig according to claim 1, which is characterized in that the list
Several gussets are provided on the inside of first substrate, the gusset is welded with two inside right-angle surfaces of the unit substrate simultaneously.
4. cross duct pieces of shield tunnel seam waterproof experimental rig according to claim 3, which is characterized in that the muscle
Plate offers lifting through-hole.
5. cross duct pieces of shield tunnel seam waterproof experimental rig according to claim 1, which is characterized in that the list
The edge part of first substrate is provided with the graduation mark for being used to indicate changing of the relative positions amount, level of the changing of the relative positions amount between upper and lower unit substrate
Direction is staggered displacement.
6. cross duct pieces of shield tunnel seam waterproof experimental rig according to claim 1, which is characterized in that the list
The edge part of the outside right-angle surface of first substrate is provided with the spacer film trap for installing steel plate washer, adjacent two module units substrate it
Between spacer film trap correspond and be laid out in opposite directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820324197.8U CN207816533U (en) | 2018-03-09 | 2018-03-09 | A kind of cross duct pieces of shield tunnel seam waterproof experimental rig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820324197.8U CN207816533U (en) | 2018-03-09 | 2018-03-09 | A kind of cross duct pieces of shield tunnel seam waterproof experimental rig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207816533U true CN207816533U (en) | 2018-09-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820324197.8U Active CN207816533U (en) | 2018-03-09 | 2018-03-09 | A kind of cross duct pieces of shield tunnel seam waterproof experimental rig |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108279097A (en) * | 2018-03-09 | 2018-07-13 | 西南交通大学 | A kind of cross duct pieces of shield tunnel seam waterproof experimental rig |
| CN114018502A (en) * | 2021-10-08 | 2022-02-08 | 山东大学 | Shield tunnel segment lining multi-joint water leakage test device and method |
-
2018
- 2018-03-09 CN CN201820324197.8U patent/CN207816533U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108279097A (en) * | 2018-03-09 | 2018-07-13 | 西南交通大学 | A kind of cross duct pieces of shield tunnel seam waterproof experimental rig |
| CN114018502A (en) * | 2021-10-08 | 2022-02-08 | 山东大学 | Shield tunnel segment lining multi-joint water leakage test device and method |
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