CN205091090U - Experimental test piece of using of shield tunnel section of jurisdiction circumferential weld impervious performance - Google Patents
Experimental test piece of using of shield tunnel section of jurisdiction circumferential weld impervious performance Download PDFInfo
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- CN205091090U CN205091090U CN201520739292.0U CN201520739292U CN205091090U CN 205091090 U CN205091090 U CN 205091090U CN 201520739292 U CN201520739292 U CN 201520739292U CN 205091090 U CN205091090 U CN 205091090U
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Abstract
The utility model relates to an experimental test piece of using of shield tunnel section of jurisdiction circumferential weld impervious performance, this test piece include A type section of jurisdiction and type B section of jurisdiction, the type B section of jurisdiction set up the both ends in A type section of jurisdiction, a type section of jurisdiction include the A -1 type section of jurisdiction and the A -2 type section of jurisdiction of mutual longitudinal tie, the type B section of jurisdiction include B -1 type section of jurisdiction and B -2 type section of jurisdiction, B -1 type section of jurisdiction and B -2 type section of jurisdiction respectively with A -1 type section of jurisdiction and the section of jurisdiction circumferential joints of A -2 type. Compared with the prior art, the utility model has the advantages of the precision is high, with low costs.
Description
Technical field
The utility model relates to test specimen and manufactures field, especially relates to a kind of duct pieces of shield tunnel circumferential weld anti-permeability performance test test specimen.
Background technology
For shield tunnel, percolating water is an outstanding difficult problem for puzzlement structure of the subway safety and normal operation always.Investigation finds, most percolating water all betides segment joint position, and the waterproof sealing of seam generally adopts the elastic sealing gasket be pasted onto near section of jurisdiction extrados to realize.As can be seen here, the anti-permeability performance of tunnel seam is most important for the reliable military service of shield tunnel.The seam of shield tunnel can be divided into longitudinal seam (section of jurisdiction-section of jurisdiction) and hoop seam (Lining Ring-Lining Ring).Therefore, for ensureing the waterproof sealing of shield tunnel in horizontal and vertical two dimensions, need to carry out impervious study mechanism for longitudinal seam and hoop seam respectively.Relative to Longitudinal Joint between Segments, section of jurisdiction circumferential weld reason many rings lining segment ring is formed, comprise longitudinal joint and circumferential weld structure, there is significant space three-dimensional effect, the machine-processed rule of its stressed condition, waterproof sealing performance is more complicated, be difficult to make a breakthrough on theoretical analysis, thus need to adopt the method for analysis of experiments to determine.Literature search finds, utility model patent---elastic sealing gasket of shield tunnel " yi word pattern " watertightness verifying attachment (CN201010145789) and utility model patent---shield duct piece joint anti-permeability performance test unit (CN104075854A) is all the indoor model tests based on small scale, and adopt punching block fixture simulation section of jurisdiction, the actual contact condition of elastic sealing gasket elastomeric material and concrete groove can not be reflected, thus test findings and the larger discrepancy of engineering physical presence, the correctness of result needs further to be verified.
In sum, in view of duct pieces of shield tunnel seam complexity stress with contact condition; the indoor model test of small scale is difficult to the waterproof sealing mechanism accurately reflecting that it is true and reliable; therefore research and develop a kind of duct piece specimen manufacture method that can be used for the test of full size section of jurisdiction circumferential weld anti-permeability performance, most important for the deep development promoting shield tunnel waterproof technique field.
Utility model content
The purpose of this utility model be exactly in order to overcome above-mentioned prior art exist defect and the duct pieces of shield tunnel circumferential weld anti-permeability performance test test specimen that a kind of precision is high, cost is low is provided.
The purpose of this utility model can be achieved through the following technical solutions:
A kind of duct pieces of shield tunnel circumferential weld anti-permeability performance test test specimen, this test specimen comprises A type section of jurisdiction and Type B section of jurisdiction, described Type B section of jurisdiction is arranged on the two ends of A type section of jurisdiction, described A type section of jurisdiction comprises the A-1 type section of jurisdiction and A-2 type section of jurisdiction that mutually longitudinally connect, described Type B section of jurisdiction comprises B-1 type section of jurisdiction and B-2 type section of jurisdiction, and described B-1 type section of jurisdiction and B-2 type section of jurisdiction are connected with A-1 type section of jurisdiction and A-2 type section of jurisdiction hoop respectively.
Described A-1 type section of jurisdiction and A-2 type section of jurisdiction are mutually permanently connected by the curved bolt of hoop, and form longitudinal joint at interface place, described B-1 type section of jurisdiction is fixedly connected with A-2 type section of jurisdiction with A-1 type section of jurisdiction respectively by longitudinal tiltedly bolt with B-2 type section of jurisdiction, and forms circumferential weld at interface place.
Described A-1 type section of jurisdiction and A-2 type section of jurisdiction are equipped with longitudinal groove at longitudinal joint place, and be provided with first ring to groove at circumferential weld place, described B-1 type section of jurisdiction and B-2 type section of jurisdiction are equipped with the second hoop groove and water filling duct built-in fitting at circumferential weld place, longitudinal groove shape on described A-1 type section of jurisdiction and A-2 type section of jurisdiction is harmonious, and described first ring is harmonious to groove and the second hoop groove shape.
Described longitudinal groove, first ring form airtight center water cavity to groove and the second hoop groove common combination, are filled with rubber seal in described center water cavity, and by water injection hole and ft connection.
Described A type section of jurisdiction and Type B section of jurisdiction are reinforced concrete segment.
Described A-1 type section of jurisdiction and inside, A-2 type section of jurisdiction are equipped with longitudinal hand hole and hoop hand hole, described B-1 type section of jurisdiction and inside, B-2 type section of jurisdiction are equipped with longitudinal hand hole, be provided with hoop bolt hole between the hoop hand hole of described A-1 type section of jurisdiction and the hoop hand hole of A-2 type section of jurisdiction, longitudinal hand hole place of described A-1 type section of jurisdiction, A-2 type section of jurisdiction, B-1 type section of jurisdiction and B-2 type section of jurisdiction all offers longitudinal bolt hole.
The curved bolt of hoop is arranged in hoop bolt hole, and described longitudinally oblique bolt is arranged in longitudinal bolt hole.
Compared with prior art, the utility model has the following advantages:
The utility model adopts the existing duct piece steel mould of shield tunnel to carry out the making of test component, take full advantage of the use value of existing punching block, ensure that test component and actual section of jurisdiction make the consistance of precision, and then ensure that the accuracy of test figure, and decrease punching block processing cost and the cost of test specimen, shorten test period, there is good economic benefit, this test specimen can simulate duct pieces of shield tunnel longitudinal joint and the different joint open of circumferential weld in actual loading situation accurately, magnitude of misalignment and open-angle, coordinate hydraulic pressure loading system can simulate duct pieces of shield tunnel longitudinal joint and the impermeability of circumferential weld under different operating mode, for Tunnel Engineering seam impermeable liquid refinement provides qualitative reference foundation.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the utility model embodiment duct piece specimen.
Fig. 2 is duct piece specimen A-1 circumferential weld surface of contact schematic diagram (by duct piece specimen B-1 side).
Fig. 3 is duct piece specimen A-1 circumferential weld surface of contact schematic diagram (by duct piece specimen B-2 side).
Fig. 4 is duct piece specimen A-1 longitudinal joint surface of contact schematic diagram.
Fig. 5 is duct piece specimen A-1 intrados schematic diagram.
Fig. 6 is duct piece specimen A-2 circumferential weld surface of contact schematic diagram (by duct piece specimen B-1 side).
Fig. 7 is duct piece specimen A-2 circumferential weld surface of contact schematic diagram (by duct piece specimen B-2 side).
Fig. 8 is duct piece specimen A-2 longitudinal joint surface of contact schematic diagram.
Fig. 9 is duct piece specimen A-2 intrados schematic diagram.
Figure 10 is duct piece specimen B-1 circumferential weld surface of contact schematic diagram.
Figure 11 is duct piece specimen B-1 intrados schematic diagram.
Figure 12 is duct piece specimen B-1 side view.
Figure 13 is duct piece specimen B-2 circumferential weld surface of contact schematic diagram.
Figure 14 is duct piece specimen B-2 intrados schematic diagram.
Figure 15 is duct piece specimen B-2 side view.
Wherein, 1, A-1 type section of jurisdiction, 2, A-2 type section of jurisdiction, 3, B-1 type section of jurisdiction, 4, B-2 type section of jurisdiction, 5, the curved bolt of hoop, 6, longitudinal tiltedly bolt, 7, longitudinal groove, 8, first ring is to groove, 9, the second hoop groove, 10, longitudinal hand hole, 11, hoop hand hole, 12, longitudinal bolt hole, 13, hoop bolt hole, 14, water injection hole.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in detail.
Embodiment:
As shown in figures 1-15, the present embodiment comprises the large class in A type section of jurisdiction and two, Type B section of jurisdiction, and the section of jurisdiction of each model is subdivided into A-1, A-2 and B-1, B-2 two subclasses.Wherein, at the longitudinal joint surface of contact of duct piece specimen A-1 and A-2 steel reinforcement cage, longitudinal groove built-in fitting is installed, at the circumferential weld surface of contact installing ring of duct piece specimen A-1 and A-2 steel reinforcement cage to groove built-in fitting, at the circumferential weld surface of contact installing ring of duct piece specimen B-1 and B-2 steel reinforcement cage to groove built-in fitting, water filling duct built-in fitting is installed in duct piece specimen B-1 and B-2 circumferential weld surface of contact and extrados region, and the concreting of test specimen is carried out by existing punching block, the test of duct pieces of shield tunnel circumferential weld anti-permeability performance can be carried out after test piece maintenance completes.
Duct piece specimen A-1, A-2, B-1 and B-2 that the present embodiment makes are the test specimen of universal tunnel section of jurisdiction.
The present embodiment method step is as follows:
First the steel reinforcement cage of duct piece specimen A-1, A-2, B-1 and B-2 is made.
To A type section of jurisdiction: according to the installation position of longitudinal joint surface of contact position at the opposite position place longitudinal groove built-in fitting of steel reinforcement cage, according to the installation position of circumferential weld surface of contact position at the opposite position place hoop groove built-in fitting of steel reinforcement cage; By the splicing of longitudinal groove built-in fitting in the longitudinal joint surface of contact position of steel reinforcement cage, by the splicing of hoop groove built-in fitting in the circumferential weld surface of contact position of steel reinforcement cage; Afterwards steel reinforcement cage, longitudinal groove built-in fitting and hoop groove built-in fitting are put into existing punching block to fix, and carry out the concreting of test specimen, carry out corresponding maintenance work.
To Type B section of jurisdiction: the installation position reserving hoop groove built-in fitting according to circumferential weld surface of contact position at the opposite position place of steel reinforcement cage, reserve the installation position of water filling duct built-in fitting at the opposite position place of steel reinforcement cage according to regional location between circumferential weld surface of contact and extrados; By the splicing of hoop groove built-in fitting in the longitudinal joint surface of contact position of steel reinforcement cage, by water filling duct built-in fitting splicing position between the circumferential weld surface of contact and extrados of steel reinforcement cage; Afterwards steel reinforcement cage, hoop groove built-in fitting and water filling duct built-in fitting are put into existing punching block to fix, and carry out the concreting of test specimen, carry out corresponding maintenance work.
The bar material making the steel reinforcement cage of duct piece specimen A type and Type B selects universal segment material, the dimensions of test specimen steel reinforcement cage is substantially identical with the steel reinforcement cage of universal segment, difference is duct piece specimen A type: the installation position of reserved longitudinal groove built-in fitting on the longitudinal joint surface of contact of steel reinforcement cage, the installation position of reserved hoop groove built-in fitting on the circumferential weld surface of contact of steel reinforcement cage, for longitudinal direction and hoop groove installation of embedded parts in place; To duct piece specimen B: the installation position of reserved hoop groove built-in fitting on the circumferential weld surface of contact of steel reinforcement cage, for hoop groove installation of embedded parts is in place, between the circumferential weld surface of contact of steel reinforcement cage and extrados, the installation position of water filling duct built-in fitting is reserved in region, for water filling duct installation of embedded parts is in place.
Claims (7)
1. a duct pieces of shield tunnel circumferential weld anti-permeability performance test test specimen, it is characterized in that, this test specimen comprises A type section of jurisdiction and Type B section of jurisdiction, described Type B section of jurisdiction is arranged on the two ends of A type section of jurisdiction, described A type section of jurisdiction comprises the A-1 type section of jurisdiction (1) and A-2 type section of jurisdiction (2) that mutually longitudinally connect, described Type B section of jurisdiction comprises B-1 type section of jurisdiction (3) and B-2 type section of jurisdiction (4), and described B-1 type section of jurisdiction (3) is connected with A-1 type section of jurisdiction (1) and A-2 type section of jurisdiction (2) hoop respectively with B-2 type section of jurisdiction (4).
2. a kind of duct pieces of shield tunnel circumferential weld anti-permeability performance test test specimen according to claim 1, it is characterized in that, described A-1 type section of jurisdiction (1) and A-2 type section of jurisdiction (2) are mutually permanently connected by the curved bolt of hoop (5), and form longitudinal joint at interface place, described B-1 type section of jurisdiction (3) is fixedly connected with A-2 type section of jurisdiction (2) with A-1 type section of jurisdiction (1) respectively by longitudinal tiltedly bolt (6) with B-2 type section of jurisdiction (4), and forms circumferential weld at interface place.
3. a kind of duct pieces of shield tunnel circumferential weld anti-permeability performance test test specimen according to claim 2, it is characterized in that, described A-1 type section of jurisdiction (1) and A-2 type section of jurisdiction (2) are equipped with longitudinal groove (7) at longitudinal joint place, and be provided with first ring at circumferential weld place to groove (8), described B-1 type section of jurisdiction (3) and B-2 type section of jurisdiction (4) are equipped with the second hoop groove (9) and water filling duct built-in fitting at circumferential weld place, longitudinal groove (7) shape on described A-1 type section of jurisdiction (1) and A-2 type section of jurisdiction (2) is harmonious, described first ring is harmonious to groove (8) and the second hoop groove (9) shape.
4. a kind of duct pieces of shield tunnel circumferential weld anti-permeability performance test test specimen according to claim 3, it is characterized in that, described longitudinal groove (7), first ring form airtight center water cavity to groove (8) and the second hoop groove (9) common combination, rubber seal is filled with in described center water cavity, and by water injection hole (14) and ft connection.
5. a kind of duct pieces of shield tunnel circumferential weld anti-permeability performance test test specimen according to claim 1, it is characterized in that, described A type section of jurisdiction and Type B section of jurisdiction are reinforced concrete segment.
6. a kind of duct pieces of shield tunnel circumferential weld anti-permeability performance test test specimen according to claim 2, it is characterized in that, described A-1 type section of jurisdiction (1) and A-2 type section of jurisdiction (2) inside are equipped with longitudinal hand hole (10) and hoop hand hole (11), described B-1 type section of jurisdiction (3) and B-2 type section of jurisdiction (4) inside are equipped with longitudinal hand hole (10), hoop bolt hole (13) is provided with between the hoop hand hole (11) of described A-1 type section of jurisdiction (1) and the hoop hand hole (11) of A-2 type section of jurisdiction (2), described A-1 type section of jurisdiction (1), A-2 type section of jurisdiction (2), longitudinal hand hole (10) place of B-1 type section of jurisdiction (3) and B-2 type section of jurisdiction (4) all offers longitudinal bolt hole (12).
7. a kind of duct pieces of shield tunnel circumferential weld anti-permeability performance test test specimen according to claim 6, it is characterized in that, the curved bolt of hoop (5) is arranged in hoop bolt hole (13), and described longitudinally oblique bolt (6) is arranged in longitudinal bolt hole (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739292.0U CN205091090U (en) | 2015-09-23 | 2015-09-23 | Experimental test piece of using of shield tunnel section of jurisdiction circumferential weld impervious performance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520739292.0U CN205091090U (en) | 2015-09-23 | 2015-09-23 | Experimental test piece of using of shield tunnel section of jurisdiction circumferential weld impervious performance |
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| CN205091090U true CN205091090U (en) | 2016-03-16 |
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| CN201520739292.0U Active CN205091090U (en) | 2015-09-23 | 2015-09-23 | Experimental test piece of using of shield tunnel section of jurisdiction circumferential weld impervious performance |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181252A (en) * | 2015-09-23 | 2015-12-23 | 同济大学 | Test piece used for shield tunnel segment circumferential weld anti-permeability performance test and manufacturing method thereof |
| CN112160769A (en) * | 2020-09-23 | 2021-01-01 | 济南轨道交通集团有限公司 | Prefabricated shield segment formed by post-pouring, segment assembly and construction method |
-
2015
- 2015-09-23 CN CN201520739292.0U patent/CN205091090U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181252A (en) * | 2015-09-23 | 2015-12-23 | 同济大学 | Test piece used for shield tunnel segment circumferential weld anti-permeability performance test and manufacturing method thereof |
| CN112160769A (en) * | 2020-09-23 | 2021-01-01 | 济南轨道交通集团有限公司 | Prefabricated shield segment formed by post-pouring, segment assembly and construction method |
| CN112160769B (en) * | 2020-09-23 | 2023-03-21 | 济南轨道交通集团有限公司 | Prefabricated shield segment formed by post-pouring, segment assembly and construction method |
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