CN110805453A - Tunnel engineering extrusion type two-lining concrete pouring device and two-lining construction method - Google Patents
Tunnel engineering extrusion type two-lining concrete pouring device and two-lining construction method Download PDFInfo
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- CN110805453A CN110805453A CN201910996104.5A CN201910996104A CN110805453A CN 110805453 A CN110805453 A CN 110805453A CN 201910996104 A CN201910996104 A CN 201910996104A CN 110805453 A CN110805453 A CN 110805453A
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- lining
- tunnel
- concrete
- template
- lifting devices
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- 239000004567 concrete Substances 0.000 title claims abstract description 39
- 238000001125 extrusion Methods 0.000 title claims abstract description 16
- 238000010276 construction Methods 0.000 title claims abstract description 13
- 238000009415 formwork Methods 0.000 claims description 21
- 239000010720 hydraulic oil Substances 0.000 claims description 15
- 238000009412 basement excavation Methods 0.000 claims description 6
- 238000007796 conventional method Methods 0.000 claims description 3
- 239000011800 void material Substances 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 7
- 230000003028 elevating effect Effects 0.000 description 3
- 239000011378 shotcrete Substances 0.000 description 3
- 235000004869 Tussilago farfara Nutrition 0.000 description 1
- 240000000377 Tussilago farfara Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/102—Removable shuttering; Bearing or supporting devices therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
- E21D11/105—Transport or application of concrete specially adapted for the lining of tunnels or galleries ; Backfilling the space between main building element and the surrounding rock, e.g. with concrete
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention relates to the technical field of tunnel engineering, and discloses a tunnel engineering extrusion type double-lining concrete pouring device which comprises a double-lining template support and double-lining templates arranged in an annular mode, wherein a plurality of lifting devices are arranged on the double-lining template support, the lifting devices are distributed along the circumferential direction of a tunnel, and the output ends of the lifting devices are in abutting connection with the double-lining templates. The invention provides an extrusion type double-lined concrete pouring device and a pouring construction method for tunnel engineering. The invention can realize the purpose of tight fit between the second lining and the primary lining of the tunnel arch, and solves the project problem of the existing cast-in-place concrete arch void by arranging the second lining template bracket and arranging a plurality of lifting devices on the second lining template bracket to ensure that the output ends of the lifting devices are abutted against the second lining template.
Description
Technical Field
The invention relates to the technical field of tunnel engineering, in particular to a tunnel engineering extrusion type double-lining concrete pouring device and a double-lining construction method.
Background
The tunnel engineering is under the ground, and the irreversibility of the construction of the tunnel engineering puts requirements on the self safety of the tunnel which are far higher than that of a ground building. At present, a mountain tunnel and a shallow-buried underground excavation tunnel lining structure are composed of primary lining sprayed concrete and cast-in-place secondary lining concrete, a shield tunnel is mostly provided with a layer of segment lining, and part of the shield tunnel is cast-in-place secondary lining concrete in segments.
Except that open cut construction tunnels usually adopt rectangular cross sections, the cross sections of the tunnels are mostly in curved shapes, such as horse hoof shapes commonly used in mountain tunnels and circular shapes of shield tunnels. For a curved section, when the concrete with the two liners is cast in place, the concrete cannot be completely filled and compacted due to the curve of the arch crown of the tunnel, so that the two liners at the arch part of the tunnel are empty, the two liners become an underground water gathering channel, and the operation safety of the tunnel is damaged.
Disclosure of Invention
Based on the problems, the invention provides a tunnel engineering extrusion type double-lining concrete pouring device and a double-lining construction method. The invention can realize the purpose of tight fit between the second lining and the primary lining of the tunnel arch, and solves the project problem of the existing cast-in-place concrete arch void by arranging the second lining template bracket and arranging a plurality of lifting devices on the second lining template bracket to ensure that the output ends of the lifting devices are abutted against the second lining template.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a two lining concrete placement devices of tunnel engineering extrusion formula, includes two lining template supports and is the two lining templates of annular setting, be provided with a plurality of elevating gear on the two lining template supports, elevating gear distributes along tunnel circumference, and elevating gear's output is contradicted with two lining templates and is connected.
As a preferable mode, the lifting device is set to be a hydraulic oil cylinder, and a base of the hydraulic oil cylinder is fixedly connected with the two lining template supports.
As a preferable mode, the two lining formwork supports are isosceles trapezoid supports, and the lifting devices are located on two sides and upper sides of the two lining formwork supports and symmetrically distributed along the longitudinal axis of the two lining formwork supports.
Preferably, the two lining forms are formed by hinging a plurality of sub-forms by means of hinges 5.
A tunnel engineering extrusion type concrete secondary lining construction method comprises the following specific steps:
(1) excavating a tunnel by adopting a conventional method and applying a primary lining;
(2) pouring inverted arch filling at the rear part of the tunnel excavation surface;
(3) after the inverted arch filling reaches the design strength, mounting a second lining template bracket and a second lining template on the upper surface of the inverted arch filling;
(4) continuously pouring concrete into a gap between the secondary lining template and the primary lining through a pouring opening of the secondary lining template;
(5) when the concrete pouring amount reaches the design amount, starting a lifting device on the second lining template bracket to enable the output end of the lifting device to extrude the second lining template towards the primary lining direction, and pushing the concrete to move towards the vault area of the tunnel and be tightly attached to the vault primary lining;
(6) and after the second lining concrete reaches the form removal strength, withdrawing the hydraulic oil cylinder to complete the form removal operation, and entering the next construction cycle.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention can realize the purpose of tight fit between the second lining and the primary lining of the tunnel arch, and solves the project problem of the existing cast-in-place concrete arch void by arranging the second lining template bracket and arranging a plurality of lifting devices on the second lining template bracket to ensure that the output ends of the lifting devices are abutted against the second lining template.
(2) According to the invention, the lifting device is set to be the hydraulic oil cylinder, the base of the hydraulic oil cylinder is fixedly connected with the two lining template supports, the stability in the process of extruding the two lining templates is ensured by setting the lifting device to be the hydraulic oil cylinder, and the stroke of the piston rod of the hydraulic oil cylinder is convenient to control.
(3) The two lining template supports are isosceles trapezoid supports, the lifting devices are located on two sides and the upper sides of the two lining template supports and symmetrically distributed along the longitudinal axis of the two lining template supports, the two lining templates are formed by hinging a plurality of auxiliary templates through hinges, and the lifting devices are symmetrically distributed along the longitudinal axis of the two lining template supports, so that the two sides of the two lining templates are stressed in balance, and the two linings of the arch part of the tunnel are tightly attached to the primary lining.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic sectional view A-A of the present invention.
The concrete-filled inverted arch concrete formwork comprises a primary lining 1, a secondary lining formwork 2, a secondary lining formwork support 3, an inverted arch filling 4, a lifting device 5, a hinge joint 6 and concrete 7.
Detailed Description
The invention will be further described with reference to the accompanying drawings. Embodiments of the present invention include, but are not limited to, the following examples.
Example 1:
referring to fig. 1-2, a tunnel engineering extrusion type double-lining concrete pouring device comprises two lining formwork supports 3 and two lining formworks 2 which are arranged in an annular mode, wherein a plurality of lifting devices 5 are arranged on the two lining formwork supports 3, the lifting devices 5 are distributed along the circumferential direction of a tunnel, and the output ends of the lifting devices 5 are connected with the two lining formworks 2 in an abutting mode.
In the invention, the lifting device can adopt the existing hydraulic cylinder, air cylinder or jack as long as the extrusion of the two lining templates can be realized, when in use, concrete is injected between the two lining templates and the primary lining, and then the two lining templates are extruded by the lifting device, so that the concrete between the two lining templates and the primary lining is uniformly distributed in the gap between the two lining templates, and the purpose of tightly attaching the two lining templates and the primary lining of the tunnel arch part is realized.
As a preferable mode, the lifting device 5 is a hydraulic oil cylinder, and a base of the hydraulic oil cylinder is fixedly connected with the two lining template supports 3. In the mode, the lifting device is set to be the hydraulic oil cylinder, the stability in the process of extruding the two lining templates is guaranteed, and the stroke of a piston rod of the hydraulic oil cylinder is convenient to control.
Preferably, the two lining formwork supports 3 are isosceles trapezoid supports, and the lifting devices 5 are located on two sides and upper sides of the two lining formwork supports 3 and symmetrically distributed along the longitudinal axis of the two lining formwork supports 3. In the mode, the lifting devices are symmetrically distributed along the longitudinal axis of the two lining template support, so that the two sides of the two lining templates are stressed in balance, and the two linings of the arch part of the tunnel are tightly attached to the primary lining.
Preferably, the lining forms 2 are formed by a plurality of sub-forms hinged by means of hinges 6. In the mode, the two lining templates are formed by hinging a plurality of small auxiliary templates, so that the two lining templates can meet the requirements of tunnels with different sections, and the use flexibility of the two lining templates is improved.
A tunnel engineering extrusion type concrete secondary lining construction method comprises the following specific steps:
(1) excavating a tunnel by adopting a conventional method and constructing a primary lining 1, wherein the conventional tunnel excavating method can be excavation by adopting a drilling and blasting method, a mechanical excavation method, a tunnel boring machine and other methods, and the primary lining 1 is sprayed concrete or anchor sprayed concrete;
(2) pouring inverted arch filling 4 at the rear part of the tunnel excavation surface;
(3) after the inverted arch filling 4 reaches the design strength, mounting a second lining template bracket 3 and a second lining template 2 on the upper surface of the inverted arch filling;
(4) continuously pouring concrete 7 into a gap between the secondary lining template 2 and the primary lining 1 through a pouring opening of the secondary lining template 2;
(5) when the pouring amount of the concrete 7 reaches the design amount, starting a lifting device 5 on a second lining template bracket 3, so that an output end of the lifting device extrudes a second lining template 2 towards a primary lining 1, and pushing the concrete 7 to move towards the vault area of the tunnel and be tightly attached to the vault primary lining 1;
(6) and after the second lining concrete 7 reaches the form removal strength, withdrawing the hydraulic oil cylinder to complete the form removal operation, and entering the next construction cycle.
The above is an embodiment of the present invention. The embodiments and specific parameters in the embodiments are only used for clearly illustrating the verification process of the present invention, and are not used for limiting the scope of the present invention, which is defined by the claims, and all the equivalent structural changes made by using the contents of the description and the drawings of the present invention should be included in the scope of the present invention.
Claims (5)
1. The utility model provides a two lining concrete placement devices of tunnel engineering extrusion formula which characterized in that: the tunnel lining formwork comprises two lining formwork supports (3) and two lining formworks (2) which are annularly arranged, wherein a plurality of lifting devices (5) are arranged on the two lining formwork supports (3), the lifting devices (5) are circumferentially distributed along the tunnel, and the output ends of the lifting devices (5) are abutted against the two lining formworks (2).
2. The tunnel engineering extrusion type secondary lining concrete pouring device according to claim 1, is characterized in that: the lifting device (5) is a hydraulic oil cylinder, and a base of the hydraulic oil cylinder is fixedly connected with the two lining template supports (3).
3. The tunnel engineering extrusion type secondary lining concrete pouring device according to claim 2, is characterized in that: the two lining formwork supports (3) are isosceles trapezoid supports, and the lifting devices (5) are located on two sides and the upper side of the two lining formwork supports (3) and are symmetrically distributed along the longitudinal axis of the two lining formwork supports (3).
4. The tunnel engineering extrusion type secondary lining concrete pouring device according to claim 3, is characterized in that: the two lining templates (2) are formed by hinging a plurality of auxiliary templates through hinges (6).
5. A tunnel engineering extrusion type concrete secondary lining construction method is characterized by comprising the following specific steps:
(1) excavating a tunnel by adopting a conventional method and applying a primary lining (1);
(2) pouring inverted arch filling (4) at the rear part of the tunnel excavation surface;
(3) after the inverted arch filling (4) achieves the design strength, mounting a second lining template bracket (3) and a second lining template (2) on the upper surface of the inverted arch filling;
(4) continuously pouring concrete (7) into a gap between the secondary lining template (2) and the primary lining (1) through a pouring opening of the secondary lining template (2);
(5) when the pouring amount of the concrete (7) reaches the design amount, starting a lifting device (5) on the second lining template bracket (3) to enable the output end of the lifting device to extrude the second lining template (2) towards the direction of the primary lining (1) so as to push the concrete (7) to move towards the vault area of the tunnel and be tightly attached to the vault primary lining (1);
(6) and after the second lining concrete (7) reaches the form removal strength, withdrawing the hydraulic oil cylinder to complete the form removal operation, and entering the next construction cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910996104.5A CN110805453A (en) | 2019-10-18 | 2019-10-18 | Tunnel engineering extrusion type two-lining concrete pouring device and two-lining construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910996104.5A CN110805453A (en) | 2019-10-18 | 2019-10-18 | Tunnel engineering extrusion type two-lining concrete pouring device and two-lining construction method |
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| Publication Number | Publication Date |
|---|---|
| CN110805453A true CN110805453A (en) | 2020-02-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910996104.5A Pending CN110805453A (en) | 2019-10-18 | 2019-10-18 | Tunnel engineering extrusion type two-lining concrete pouring device and two-lining construction method |
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| Country | Link |
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| CN (1) | CN110805453A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119945A (en) * | 2020-02-24 | 2020-05-08 | 中铁十七局集团第四工程有限公司 | Tunnel secondary lining concrete pumping extrusion type pouring construction method |
| CN111648787A (en) * | 2020-04-24 | 2020-09-11 | 同济大学 | Method for reinforcing shield tunnel lining structure by adopting ultra-high performance concrete |
| WO2021189746A1 (en) * | 2020-03-26 | 2021-09-30 | 中铁三局集团有限公司 | Rapid construction structure and method for secondary lining of multiple variable-cross-section bored tunnels |
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2019
- 2019-10-18 CN CN201910996104.5A patent/CN110805453A/en active Pending
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119945A (en) * | 2020-02-24 | 2020-05-08 | 中铁十七局集团第四工程有限公司 | Tunnel secondary lining concrete pumping extrusion type pouring construction method |
| CN111119945B (en) * | 2020-02-24 | 2021-10-15 | 中铁十七局集团第四工程有限公司 | Tunnel secondary lining concrete pumping extrusion type pouring construction method |
| WO2021189746A1 (en) * | 2020-03-26 | 2021-09-30 | 中铁三局集团有限公司 | Rapid construction structure and method for secondary lining of multiple variable-cross-section bored tunnels |
| JP2022530596A (en) * | 2020-03-26 | 2022-06-30 | 中鉄三局集団有限公司 | Secondary lining high-speed construction structure and method in excavation tunnels with various variable cross sections |
| JP7229368B2 (en) | 2020-03-26 | 2023-02-27 | 中鉄三局集団有限公司 | High-speed construction structure and method for secondary lining in excavated tunnels with various cross-sections |
| CN111648787A (en) * | 2020-04-24 | 2020-09-11 | 同济大学 | Method for reinforcing shield tunnel lining structure by adopting ultra-high performance concrete |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200218 |
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| RJ01 | Rejection of invention patent application after publication |