CN102095595A - Pushing-type tested hydraulic pressure application device for shield tunnel structure prototype - Google Patents
Pushing-type tested hydraulic pressure application device for shield tunnel structure prototype Download PDFInfo
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- CN102095595A CN102095595A CN2010105936683A CN201010593668A CN102095595A CN 102095595 A CN102095595 A CN 102095595A CN 2010105936683 A CN2010105936683 A CN 2010105936683A CN 201010593668 A CN201010593668 A CN 201010593668A CN 102095595 A CN102095595 A CN 102095595A
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Abstract
The invention discloses a pushing-type tested hydraulic pressure application device for a shield tunnel structure prototype, which is formed by that the top of a tunnel structure prototype (2) of which the central axis is parallel to the ground is provided with more than two circumferential jacks (4); two ends of each jack (4) are respectively provided with a longitudinal left pushing beam body (3) and a longitudinal right pushing beam body (3); two ends of a hoop anchor rope (5) are intersected on the top surface of the tunnel structure prototype (2) between the longitudinal left pushing beam body (3) and the longitudinal right pushing beam body (3) after the hoop anchor rope (5) surrounds the surface of the tunnel structure prototype (2) for one circle; and two interacted ends are respectively connected with the longitudinal left pushing beam body (3) and the longitudinal right pushing beam body (3). According to the device, interference on structure hydraulic pressure simulation because of additional concentrated force on the hoop beam in a self-anchoring hoop method, so that the action and the influence on the prototype tunnel structure by the environmental hydraulic pressure can be truly simulated, more accurate and reliable test basis is provided for the design and the construction of underwater shield tunnel structure, and the tunnel can be safely built and operated.
Description
Technical field
The present invention relates to a kind of duct pieces of shield tunnel architecture prototyping test unit, relate in particular to a kind of push mode shield tunneling structure prototype experiment hydraulic pressure bringing device.
Background technology
To applying of shield tunnel prototype tunnel segment structure hydraulic pressure, adopt usually from the device of anchor ring hoop formula and realize that it is overlooked the partial structurtes synoptic diagram and sees Fig. 3.Its formation is: shield tunnel construction prototype 2 is placed vertically in ground (its central axis is perpendicular to the ground), two hoop beams 3 vertically are set on the outer peripheral face, hoop beam 3 one sides are provided with lifting jack 4, the top of hoop anchor cable 5 passes the anchor cable hole, top on the hoop beam 3, after rounding on the shield tunnel construction prototype 2, the terminal anchor cable hole that its end passes on the hoop beam 3 links to each other with the push rod of lifting jack 4 again.Wherein, hoop beam 3 provides pressure to simulate and the control structure water pressure by hoop anchor cable 5.Yet the charger of this self-anchored type hoop formula exists the problem and the hidden danger of following two aspects:
At first, because lifting jack tonnage and size are bigger, hoop beam both sides hoop anchor cable is when the section of jurisdiction outside surface of arc enters the hoop beam, because the anchor cable hole is straight, its left and right sides is identical with the distance on shield tunnel construction prototype surface, and in addition, lifting jack tonnage and size are bigger, its top will cause producing inevitably about 14 °～17 ° stretch-draw angle (α) with the distance of side, and the anchor cable other end that symmetry is installed also certainly leads to 14 °～17 ° stretch-draw angle (β).Make hoop beam left and right sides near zone have bigger stretch-draw space, and produce additional concentrated force at hoop Liang Chu, when simulation hydraulic pressure was big, the influence of the additional concentrated force of hoop Liang Chu was very remarkable, had a strong impact on test effect.
Secondly, the hoop anchor cable forms flex point at the A of edge in anchor cable hole, and stress concentrates on herein during stretch-draw, will cause the easily fracture herein of hoop anchor cable, has potential safety hazard.
Summary of the invention
Purpose of the present invention just provides a kind of push mode shield tunneling structure prototype experiment hydraulic pressure bringing device, this device adopts push mode hoop loading method, eliminated hoop Liang Chu in the self-anchored type hoop method owing to add the interference of the existence of concentrated force, the potential safety hazard that exists when reaching hoop beam hoop anchorage cable stretching to the structure hydraulic analogue.Test findings is true and accurate more; Thereby simulate the role and influence of environment hydraulic pressure more realistically, provide more accurate, reliable test basis, to guarantee the construction and the operation safety in tunnel with design and construction to underwater shield tunneling structure to the prototype tunnel structure; And the reliability height of device, security is good.
The technical solution adopted for the present invention to solve the technical problems is: a kind of push mode shield tunneling structure prototype experiment hydraulic pressure bringing device, its composition is: the top that the axis is parallel to the tunnel structure prototype on ground is provided with circumferential plural lifting jack, and the two ends of lifting jack are respectively equipped with left and right longitudinally thrust beam body; The hoop anchor yoke intersects at the tunnel structure prototype top surface between the left and right thrust beam body after one week around tunnel structure prototype surface, the two ends after the intersection link to each other with left and right thrust beam body respectively.
Compared with prior art, the invention has the beneficial effects as follows:
Change into vertical tunnel structure prototype horizontal, even the axis of tunnel structure prototype is parallel to ground, then on its surface around laying the hoop anchor cable, the hoop anchor cable intersects at behind the top surface of tunnel structure prototype stretch-draw anchor on the thrust beam of the left and right sides again, lifting jack outside (both sides) applied thrust in the middle of two thrust beams.Because the hoop anchor cable forms a complete circle on tunnel structure prototype surface, its stretch-draw angle is 0, does not have any stretch-draw space between the two, therefore, can not produce any additional concentrated force, thoroughly eliminate the adverse effect of the additional concentrated force of hoop beam the constitution water pressure simulation; Make the simulation of constitution water pressure more true and reliable.Thereby make test simulate the role and influence of environment hydraulic pressure more truly, provide more scientific and reliable test basis, to guarantee the construction and the operation safety in tunnel with design and construction to underwater shield tunneling structure to the tunnel structure prototype.
The above-mentioned relative side of left and right thrust beam body is installed the pushing tow force transfer body respectively, between the pushing tow force transfer body lifting jack is set.
Lifting jack promotes force transfer body, by force transfer body the jacking force of lifting jack is delivered to two beam bodies, avoids the stress raisers of lifting jack and beam body contact position.
Have the anchor cable hole on the above-mentioned left and right thrust beam body, the hoop anchor cable is anchored on the lateral surface of left and right thrust beam body after passing the anchor cable hole; The anchor cable hole tilts, and the angle of its inclination makes the hoop anchor cable that passes left and right thrust beam body not form flex point at the peritreme place.
Like this, can further make the hoop anchor cable thrust beam pass and connecting place does not form flex point, do not produce stress and concentrate in any position of thrust beam, make the hoop anchor cable firm, not easy fracture, come off, safe in utilization.
Below in conjunction with accompanying drawing and concrete embodiment the present invention is further specified.
Description of drawings
Fig. 1 is that structural representation is faced at the top (part) of the embodiment of the invention.
Fig. 2 be the embodiment of the invention from bow-rear is to the perspective view of seeing of dwindling.
Fig. 3 existingly overlooks the partial structurtes synoptic diagram from anchor ring hoop formula device.
Embodiment
Embodiment
Fig. 1-2 illustrates, and a kind of embodiment of the present invention is:
A kind of push mode shield tunneling structure prototype experiment hydraulic pressure bringing device, its composition is: the top that the axis is parallel to the tunnel structure prototype 2 on ground is provided with circumferential plural lifting jack 4, and the two ends of lifting jack 4 are respectively equipped with left and right longitudinally thrust beam body 3; Hoop anchor cable 5 intersects at tunnel structure prototype 2 top surfaces between the left and right thrust beam body 3 around the tunnel structure prototype after 2 surperficial weeks, the two ends after the intersection link to each other with left and right thrust beam body 3 respectively.Left and right thrust beam body 3 relative sides are installed pushing tow force transfer body 31 respectively, and lifting jack 4 is set between the pushing tow force transfer body 31.
Have anchor cable hole 32 on the left and right thrust beam body 3, hoop anchor cable 5 is anchored on the lateral surface of left and right thrust beam body 3 after passing anchor cable hole 32; Anchor cable hole 32 tilts, and the angle of its inclination makes the hoop anchor cable 5 that passes left and right thrust beam body 3 not form flex point at the peritreme place.
Claims (3)
1. push mode shield tunneling structure prototype experiment hydraulic pressure bringing device, its composition is: the top that the axis is parallel to the tunnel structure prototype (2) on ground is provided with circumferential plural lifting jack (4), and the two ends of lifting jack (4) are respectively equipped with left and right longitudinally thrust beam body (3); Hoop anchor cable (5) intersects at tunnel structure prototype (2) top surface between the left and right thrust beam body (3) around tunnel structure prototype (2) after the surperficial week, the two ends after the intersection link to each other with left and right thrust beam body (3) respectively.
2. a kind of push mode shield tunneling structure prototype experiment hydraulic pressure bringing device as claimed in claim 1, it is characterized in that: the side that described left and right thrust beam body (3) is relative also is separately installed with pushing tow force transfer body (31), and lifting jack (4) is arranged between the left and right pushing tow force transfer body (31).
3. a kind of push mode shield tunneling structure prototype experiment hydraulic pressure bringing device as claimed in claim 1, it is characterized in that: have anchor cable hole (32) on the described left and right thrust beam body (3), hoop anchor cable (5) is anchored on the lateral surface of left and right thrust beam body (3) after passing anchor cable hole (32); Anchor cable hole (32) tilts, and the angle of its inclination makes the hoop anchor cable (5) that passes left and right thrust beam body (3) not form flex point at the peritreme place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010593668.3A CN102095595B (en) | 2010-12-17 | 2010-12-17 | Push mode shield tunneling structure prototype experiment test water pressure applying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010593668.3A CN102095595B (en) | 2010-12-17 | 2010-12-17 | Push mode shield tunneling structure prototype experiment test water pressure applying device |
Publications (2)
| Publication Number | Publication Date |
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| CN102095595A true CN102095595A (en) | 2011-06-15 |
| CN102095595B CN102095595B (en) | 2016-02-03 |
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| CN201010593668.3A Active CN102095595B (en) | 2010-12-17 | 2010-12-17 | Push mode shield tunneling structure prototype experiment test water pressure applying device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944399A (en) * | 2012-11-08 | 2013-02-27 | 沈阳中之杰流体控制***有限公司 | Wheel rim tangential loading method |
| CN108318270A (en) * | 2018-03-23 | 2018-07-24 | 北京交通大学 | A kind of high hydraulic pressure shield-tunneling construction environmental simulation test device |
| CN111254982A (en) * | 2020-01-20 | 2020-06-09 | 中交第三航务工程局有限公司 | Pushing process of underwater cable-stayed suspension tunnel |
| CN114720168A (en) * | 2022-04-29 | 2022-07-08 | 中国科学院武汉岩土力学研究所 | Tunnel engineering supporting structure deformation and control simulation test system |
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| JPH1077794A (en) * | 1996-09-02 | 1998-03-24 | Taisei Corp | Shield tunnel structure |
| CN101403645A (en) * | 2008-11-12 | 2009-04-08 | 西南交通大学 | Hydraulic pressure and soil pressure independently loaded shield tunneling structure prototype experiment apparatus |
| CN201225934Y (en) * | 2008-07-22 | 2009-04-22 | 西南交通大学 | Hydraulic prototype experiment apparatus for underwater shield tunnel construction model |
| CN201225933Y (en) * | 2008-07-22 | 2009-04-22 | 西南交通大学 | Hydraulic analogue apparatus for shield tunnel construction model |
| CN201650947U (en) * | 2010-04-01 | 2010-11-24 | 皇明太阳能股份有限公司 | Rapid assembling and disassembling hose clamp |
| CN201917462U (en) * | 2010-12-17 | 2011-08-03 | 西南交通大学 | Jacking type shield tunnel structure prototype test hydraulic pressure application device |
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2010
- 2010-12-17 CN CN201010593668.3A patent/CN102095595B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH1077794A (en) * | 1996-09-02 | 1998-03-24 | Taisei Corp | Shield tunnel structure |
| CN201225934Y (en) * | 2008-07-22 | 2009-04-22 | 西南交通大学 | Hydraulic prototype experiment apparatus for underwater shield tunnel construction model |
| CN201225933Y (en) * | 2008-07-22 | 2009-04-22 | 西南交通大学 | Hydraulic analogue apparatus for shield tunnel construction model |
| CN101403645A (en) * | 2008-11-12 | 2009-04-08 | 西南交通大学 | Hydraulic pressure and soil pressure independently loaded shield tunneling structure prototype experiment apparatus |
| CN201650947U (en) * | 2010-04-01 | 2010-11-24 | 皇明太阳能股份有限公司 | Rapid assembling and disassembling hose clamp |
| CN201917462U (en) * | 2010-12-17 | 2011-08-03 | 西南交通大学 | Jacking type shield tunnel structure prototype test hydraulic pressure application device |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944399A (en) * | 2012-11-08 | 2013-02-27 | 沈阳中之杰流体控制***有限公司 | Wheel rim tangential loading method |
| CN102944399B (en) * | 2012-11-08 | 2015-08-26 | 沈阳中之杰流体控制***有限公司 | The tangential loading method of a kind of wheel rim |
| CN108318270A (en) * | 2018-03-23 | 2018-07-24 | 北京交通大学 | A kind of high hydraulic pressure shield-tunneling construction environmental simulation test device |
| CN111254982A (en) * | 2020-01-20 | 2020-06-09 | 中交第三航务工程局有限公司 | Pushing process of underwater cable-stayed suspension tunnel |
| CN111254982B (en) * | 2020-01-20 | 2021-05-14 | 中交第三航务工程局有限公司 | Pushing process of underwater cable-stayed suspension tunnel |
| CN114720168A (en) * | 2022-04-29 | 2022-07-08 | 中国科学院武汉岩土力学研究所 | Tunnel engineering supporting structure deformation and control simulation test system |
| CN114720168B (en) * | 2022-04-29 | 2023-02-28 | 中国科学院武汉岩土力学研究所 | Tunnel engineering supporting structure deformation and control simulation test system |
| US11879872B2 (en) | 2022-04-29 | 2024-01-23 | Institute Of Rock And Soil Mechanics, Chinese Academy Of Sciences | Deformation and control simulation test system for tunnel engineering supporting structure |
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| Publication number | Publication date |
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| CN102095595B (en) | 2016-02-03 |
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