CN101629489A - Tunnel portal sealing device for shield break-in and break-out simulation test - Google Patents
Tunnel portal sealing device for shield break-in and break-out simulation test Download PDFInfo
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- CN101629489A CN101629489A CN200910055881A CN200910055881A CN101629489A CN 101629489 A CN101629489 A CN 101629489A CN 200910055881 A CN200910055881 A CN 200910055881A CN 200910055881 A CN200910055881 A CN 200910055881A CN 101629489 A CN101629489 A CN 101629489A
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Abstract
The invention discloses a tunnel portal sealing device for a shield break-in and break-out simulation test. The sealing device comprises a square flange short connection seat, a circumference transition short connection seat, a lockgate and a round short connection seat, wherein, the square flange short connection seat is arranged on the soil body side of the simulation test, and one end of the square flange short connection seat is used for connecting a tunnel portal of a testing platform; the circumference transition short connection seat is arranged on the soil body side of the simulation test, and one end of the circumference transition short connection seat is connected with the other end of the square flange short connection seat; one side of the lockgate is connected with the other end of the circumference transition short connection seat; and the round short connection seat is arranged on the non-soil body side of the simulation test, and one end of the round short connection seat is connected with the other side of the lockgate. The tunnel portal sealing device for the shield break-in and break-out simulation test not only can favorably simulate the actual shield break-in and break-out working conditions and avoids potential safety hazard and time and labor consumption caused by chiseling out the concrete tunnel portal, but also has fine seal effect.
Description
Technical field
The invention belongs to the construction of tunnel technical field, be specifically related to a kind of shield structure turnover hole portal sealing device that is used for simulated test research.
Background technology
The tunnel of shield construction generally has a bite starting well and a bite received well at a certain distance.Before the actual tunnel shield-tunneling construction, at starting well, received well place, the soil body in the tunnel excavation scope is to keep independence by the concrete portal.The shield structure needs the starting well side portal space enclosing structure of appearing is carried out gradation and cut and (generally be divided into twice before starting, for the first time cut off the back side reinforcing bar earlier and cut the space enclosing structure concrete to the upstream face reinforcing bar, remove remainder again before appearing for the second time), the shield structure advances in the incision soil body then.And need space enclosing structure back side reinforcing bar to portal in the received well cut off before the shield and concrete cuts, to remove obstacle before the shield structure turnover hole.
In the construction simulation test of shield structure turnover hole, consistent in order to accomplish with actual shield structure turnover hole operating mode, must build the concrete portal that passes in and out the hole earlier, when the construction of shield structure turnover hole, manually cut the concrete portal then.Yet the concreting structure must be brought following problem as the portal of shield structure turnover hole construction simulation test:
1. because concrete has certain curing time, in order to allow portal have certain intensity, to stop the place ahead water and soil pressure, must need to spend time about at least one week as concrete curing time, thereby increase the total time of shield structure turnover hole model testing;
2. in order to build twice concrete portal, must shuttering, work such as wire-tie, workload is big; And owing in the concrete portal structure reinforcing bar is arranged, and concrete strength is generally at C more than 15, and the difficulty and the workload that therefore manually cut the concrete portal are all very big;
3. cut the concrete portal, easily produce potential safety hazard, soil layer instability when making the construction of shield structure turnover hole.
Summary of the invention
The present invention is directed to the defective that needs to build the concrete portal in turnover hole in the construction simulation test of shield structure turnover hole in the prior art and bring, a kind of tunnel portal sealing device for shield break-in and break-out simulation test is provided.
Tunnel portal sealing device for shield break-in and break-out simulation test of the present invention comprises:
One square flange short circuit seat, for being arranged at simulated test soil body side, the one end is used for being connected with the test platform portal;
One circumference transition short circuit seat, for being arranged at simulated test soil body side, the one end is connected with the other end of described square flange short circuit seat;
One gate, the one side is connected with the other end of described circumference transition short circuit seat;
One circle short circuit seat, for being arranged at the non-soil body side of simulated test, the one end is connected with the opposite side of described gate.
Wherein, an end of described circumference transition short circuit seat is a square flange, and the other end is a round flange, and described square flange is connected by a connecting ring with described round flange.
Inner surface at described round short circuit seat is equipped with a circle ankle socks.
Described gate has two fan door-plates, and gate oil cylinder respectively is installed on it, for opening and close described gate automatically; Rubber strip for the usefulness of sealing is installed between the described two fan door-plates.
The junction of described square flange short circuit seat and the junction of circumference transition short circuit seat, described circumference transition short circuit seat and gate and described gate are respectively equipped with sealing flange with the junction of justifying the short circuit seat and are connected.
Positive progressive effect of the present invention is: the present invention does not adopt the concrete portal, and employing portal sealing device, design by gate on it and corresponding seal member, can not only simulate actual shield structure turnover hole working condition well, avoided cutting taking time and effort that potential safety hazard that the concrete portal produces and concreting portal cause, and have good sealing effectiveness, thereby guaranteed that shield structure turnover hole section water and soil is not kept the stability of soil layer by loss; Owing to be provided with gate oil cylinder, so can open automatically; And the employing steel work can be repeatedly used, and saves and drops into.
Description of drawings
Fig. 1 is the schematic top plan view of tunnel portal sealing device for shield break-in and break-out simulation test of the present invention;
Fig. 2 A and Fig. 2 B are the structural representation of the square flange short circuit seat of tunnel portal sealing device for shield break-in and break-out simulation test of the present invention;
Fig. 3 A and Fig. 3 B are the structural representation of the circumference transition short circuit seat of tunnel portal sealing device for shield break-in and break-out simulation test of the present invention;
Fig. 4 A and Fig. 4 B are the gate structures schematic diagram of tunnel portal sealing device for shield break-in and break-out simulation test of the present invention;
Fig. 5 A and Fig. 5 B are the structural representation of the round short circuit seat of tunnel portal sealing device for shield break-in and break-out simulation test of the present invention;
Fig. 6 A～6E is the operating process figure that the shield structure is appeared at the test platform that Fig. 1 device is installed; And
Fig. 7 A～7E is the shield structure enters the hole at the test platform that Fig. 1 device is installed operating process figure.
The specific embodiment
As shown in Figure 1, be tunnel portal sealing device for shield break-in and break-out simulation test of the present invention, comprise:
One square flange short circuit seat 10 (shown in Fig. 2 A and 2B), for being arranged at simulated test soil body side, the one end is a short circuit mouth 11, the other end is a flange port 12;
One circumference transition short circuit seat, 20 (shown in Fig. 3 A and 3B), for being arranged at simulated test soil body side, one end is a square flange 21, the other end is a round flange 22, square flange 21 is connected by a connecting ring 23 with round flange 22, the square flange 21 of circumference transition short circuit seat 20 is connected with the other end flange 12 of square flange short circuit seat 10, and is provided with sealing flange connection (figure does not show) in the junction;
One gate 30 (shown in Fig. 4 A and 4B) has two fan door-plates 33, and gate 30 1 sides are connected (as shown in Figure 6A) with the other end round flange 22 of circumference transition short circuit seat 20, and are provided with sealing flange connection (figure does not show) in the junction; Rubber strip (figure does not show) is housed between the two fan door-plates 33, this rubber strip is compressed, to reach the effect of sealing water by pressure; Pushed by the front of the soil body owing to be in gate 30 sidewalls of closed condition, be subjected to the effect of larger side frictional force when therefore opening, thus on two fan door-plates 33 of gate 30, a gate oil cylinder 34 can be installed respectively, for opening automatically and closed shutter 30;
One circle short circuit seat, 40 (shown in Fig. 5 A and 5B), for being arranged at the non-soil body side of simulated test, one end 41 is connected (as shown in Figure 6A) with the opposite side of gate 30, and be provided with sealing flange in the junction and connect (figure does not show), the inner surface of circle short circuit seat 40 is equipped with a circle ankle socks 43, be the rubber material, when shield structure turnover hole, the shield machine head enters in the round short circuit seat 40, through rubbing action, ankle socks 43 turns over the heading to shield machine, and ankle socks 43 sidewalls are close to shield machine shell outer wall, thereby reaches the effect of sealing water.
Shown in Fig. 6 A～6E, 7A～7E, when shield structure turnover of the present invention hole portal sealing device is applied to simulated test, with square flange short circuit seat 10 and circumference transition short circuit seat 20, place the simulated test soil body 70 sides, and square flange short circuit seat 10 1 end short circuit mouths 11 are connected with test platform portal 90, and be provided with sealing flange in the junction with portal 90 bodies of wall and be connected, to reach the effect of hermetic seal.When simulation shield structure is appeared (shown in Fig. 6 A～6E), shield structure 80 heads at first head in the round short circuit seat 40, and this moment, shield structure 80 cutterhead tips contacted with gate 30; Then gate 30 is pulled out starting gate 30 by gate oil cylinder 34 startups to both sides; Shield structure 80 continues to advance, and by gate 30, enters in the section of the appearing soil body side; Shield structure 80 continues to advance, and enters in the soil body of circumference transition short circuit seat 20; Backing structure 80 continues in the soil body of the blue short circuit seats 10 of access methods.Thus, the shield structure is appeared smoothly.When simulation during shield (shown in Fig. 7 A～7E), shield structure 80 is at first in the soil body of the blue short circuit seat 10 of access method; Then the shield structure enters in the soil body of circumference transition short circuit seat 20; Contact with gate 30 with backing structure 80 cutterhead tips, gate 30 is pulled out starting gate 30 by gate oil cylinder 34 startups to both sides simultaneously; The shield structure continues to advance, by gate 30; Backing structure 80 continues to advance, and enters in the round short circuit seat 40.Thus, shield structure 80 enters the hole smoothly.
Claims (5)
1. tunnel portal sealing device for shield break-in and break-out simulation test is characterized in that comprising:
One square flange short circuit seat, for being arranged at simulated test soil body side, the one end is used for being connected with the test platform portal;
One circumference transition short circuit seat, for being arranged at simulated test soil body side, the one end is connected with the other end of described square flange short circuit seat;
One gate, the one side is connected with the other end of described circumference transition short circuit seat;
One circle short circuit seat, for being arranged at the non-soil body side of simulated test, the one end is connected with the opposite side of described gate.
2. tunnel portal sealing device for shield break-in and break-out simulation test as claimed in claim 1 is characterized in that an end of described circumference transition short circuit seat is a square flange, and the other end is a round flange, and described square flange is connected by a connecting ring with described round flange.
3. tunnel portal sealing device for shield break-in and break-out simulation test as claimed in claim 1 is characterized in that at the inner surface of described round short circuit seat one circle ankle socks being installed.
4. tunnel portal sealing device for shield break-in and break-out simulation test as claimed in claim 1 is characterized in that described gate has two fan door-plates, respectively is equipped with gate oil cylinder, for opening and close described gate automatically on it; And the rubber strip for the usefulness of sealing is installed between the described two fan door-plates.
5. tunnel portal sealing device for shield break-in and break-out simulation test as claimed in claim 1 is characterized in that the junction of described square flange short circuit seat and the junction of circumference transition short circuit seat, described circumference transition short circuit seat and gate and described gate are respectively equipped with sealing flange with the junction of justifying the short circuit seat and are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100558816A CN101629489B (en) | 2009-08-04 | 2009-08-04 | Tunnel portal sealing device for shield break-in and break-out simulation test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100558816A CN101629489B (en) | 2009-08-04 | 2009-08-04 | Tunnel portal sealing device for shield break-in and break-out simulation test |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101629489A true CN101629489A (en) | 2010-01-20 |
| CN101629489B CN101629489B (en) | 2011-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100558816A Active CN101629489B (en) | 2009-08-04 | 2009-08-04 | Tunnel portal sealing device for shield break-in and break-out simulation test |
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| Country | Link |
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| CN (1) | CN101629489B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635361A (en) * | 2012-05-06 | 2012-08-15 | 上海城建市政工程（集团）有限公司 | Construction method for holing and welling of shield machine |
| CN108915707A (en) * | 2018-08-24 | 2018-11-30 | 济南中铁重工轨道装备有限公司 | A kind of shield machine factory load testing device for simulating geological environment |
-
2009
- 2009-08-04 CN CN2009100558816A patent/CN101629489B/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635361A (en) * | 2012-05-06 | 2012-08-15 | 上海城建市政工程（集团）有限公司 | Construction method for holing and welling of shield machine |
| CN102635361B (en) * | 2012-05-06 | 2014-04-30 | 上海城建市政工程（集团）有限公司 | Construction method for holing and welling of shield machine |
| CN108915707A (en) * | 2018-08-24 | 2018-11-30 | 济南中铁重工轨道装备有限公司 | A kind of shield machine factory load testing device for simulating geological environment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101629489B (en) | 2011-09-07 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Owner name: SHANGHAI TUNNEL ENGINEERING CO., LTD. Free format text: FORMER OWNER: SHANGHAI TUNNEL ENGINEERING CO LTD Effective date: 20150123 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150123 Address after: 200137 No. 58 East Road, Shanghai Patentee after: Shanghai Shield Center Co., Ltd. Patentee after: SHANGHAI TUNNEL ENGINEERING CO., LTD. Address before: 200137 No. 58 East Road, Shanghai Patentee before: Shanghai Shield Center Co., Ltd. Patentee before: Shanghai Tunnel Engineering Co., Ltd. |