CN111365033A - Rapid lining method and template for tunnel-shaped tunnel of city portal - Google Patents
Rapid lining method and template for tunnel-shaped tunnel of city portal Download PDFInfo
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- CN111365033A CN111365033A CN202010386980.9A CN202010386980A CN111365033A CN 111365033 A CN111365033 A CN 111365033A CN 202010386980 A CN202010386980 A CN 202010386980A CN 111365033 A CN111365033 A CN 111365033A
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- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000009415 formwork Methods 0.000 claims description 45
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 238000007789 sealing Methods 0.000 claims description 25
- 238000009434 installation Methods 0.000 claims description 7
- 239000004593 Epoxy Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 239000004570 mortar (masonry) Substances 0.000 claims description 5
- 239000011435 rock Substances 0.000 abstract description 16
- 238000010276 construction Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
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- 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
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- 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)
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- 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 discloses a template for quickly lining an urban portal tunnel, which has the advantage of improving the lining construction efficiency and lining utilization efficiency of the tunnel. The template for quickly lining the urban cave-shaped tunnel has an arch effect, and the side wall template and the surrounding rock are connected by the high-strength bolts, so that the template can be stabilized when concrete is poured without external support. Meanwhile, the bottom part of the side wall template is tightly combined with the bottom surrounding rock by adopting the foundation bolts, the upper load is transferred to the bottom surrounding rock, and the functions of pouring, vibrating and other loads can be borne without external support. The invention also provides a rapid lining method based on the template for rapid lining of the urban cave-shaped tunnel.
Description
Technical Field
The invention relates to the technical field of tunnel steel pipe sheet templates, in particular to a rapid lining method and a template for an urban portal tunnel.
Background
The shape of an urban portal is a common type in hydraulic tunnels. The speed of tunnel lining is great to engineering progress and safe influence, and present tunnel lining template adopts the steel mould platform truck more, needs a large amount of outside supports on the one hand, influences the traffic of the interior construction period in the hole. On the other hand, the poured concrete needs to reach certain strength, the template can be dismantled and the lining section can be poured for the next section for use, and the lining speed of the whole tunnel is directly influenced by the influence of the steel mould trolley manufacturing cost and traffic in the tunnel due to low template utilization efficiency.
Therefore, how to provide a template for rapid lining of an urban portal tunnel to improve the working efficiency is a technical problem to be solved urgently by those skilled in the art.
Disclosure of Invention
In view of the above, the present invention provides a formwork for rapid lining of an urban cave-shaped tunnel, so as to improve work efficiency. The invention also aims to provide a rapid lining method based on the template for rapid lining of the urban cave-shaped tunnel.
In order to achieve the purpose, the invention provides the following technical scheme:
a template for rapid lining of an urban cave-shaped tunnel comprises a template unit, wherein the template unit comprises a bottom template, a left side wall template, a right side wall template, a left shoulder template, a right shoulder template and a top sealing template, wherein,
the left side wall template comprises a left vertical plate and a left horizontal plate, the right side wall template comprises a right vertical plate and a right horizontal plate,
the bottom template is laid at the bottom of the urban portal tunnel, one end of the bottom template is connected with the left horizontal plate, the left horizontal plate is sequentially connected with the left vertical plate, the left shoulder template and the top sealing template upwards,
the other end of the bottom template is connected with the right horizontal plate, the right horizontal plate is sequentially connected with the right vertical plate, the right shoulder template and the top sealing template upwards,
the left side wall template is connected with a left embedded sleeve on the left side wall of the urban portal tunnel, and the right side wall template is connected with a right embedded sleeve on the right side wall of the urban portal tunnel.
Preferably, the length of the template units along the axial direction of the urban portal tunnel is 2-4 meters, and the template units are multiple and are paved on the inner wall of the urban portal tunnel.
Preferably, the left vertical plate is provided with a first through hole for the left embedded sleeve to pass through and be connected through a bolt,
the right vertical plate is provided with a second through hole for the right embedded sleeve to pass through and be connected through a bolt,
the left horizontal plate is connected with the bottom of the urban portal tunnel through a bolt, and the right horizontal plate is connected with the bottom of the urban portal tunnel through a bolt.
Preferably, the bottom formwork, the left side wall formwork, the right side wall formwork, the left shoulder formwork, the right shoulder formwork and the top sealing formwork are all composed of steel plates, longitudinal rib plates and transverse rib plates, wherein the longitudinal rib plates and the transverse rib plates are fixed on one sides of the steel plates.
Preferably, the longitudinal rib and the lateral rib are welded to the steel plate,
the thickness of the longitudinal rib plates, the thickness of the transverse rib plates and the thickness of the steel plate are all 5-10 mm.
Preferably, when the height of the urban cave-shaped tunnel is more than 5m, the left side wall formworks and the right side wall formworks are all multiple,
and when the height of the urban door-opening-shaped tunnel is not more than 5 meters, the left side wall template and the right side wall template are both one.
The invention also provides a rapid lining method for the urban portal tunnel, which comprises the following steps:
step 1) manufacturing a template for rapid lining of an urban portal tunnel in a processing plant, wherein the template is provided with a first through hole at a position corresponding to the left embedded sleeve and a second through hole at a position corresponding to the right embedded sleeve;
step 2) when the urban portal tunnel is excavated, embedding a left embedded sleeve on the left side wall of the urban portal tunnel, and embedding a right embedded sleeve on the right side wall of the urban portal tunnel;
step 3) laying the template for quickly lining the urban portal tunnel along the inner wall of the urban portal tunnel until the installation of the template unit in the whole urban portal tunnel is finished;
and 4) pouring concrete, cutting off a connecting piece which is arranged on the left side wall template and is connected with the left embedded sleeve after the concrete reaches a preset strength, cutting off a connecting piece which is arranged on the right side wall template and is connected with the right embedded sleeve, and dismantling the template for quickly lining the urban portal tunnel.
Preferably, in the step 3), the assembling and fixing sequence of the template for rapid lining of the urban cave-shaped tunnel in the urban cave-shaped tunnel is from bottom to top.
Preferably, the assembling and fixing sequence is as follows: the bottom template, the left side wall template or the right side wall template, the left shoulder template or the right shoulder template, and finally the top sealing template.
Preferably, the step 4) further includes finally treating the remaining connecting members in the concrete with epoxy mortar.
The invention provides a template for rapid lining of an urban cave-shaped tunnel, which comprises a template unit, wherein the template unit comprises a bottom template, a left side wall template, a right side wall template, a left shoulder template, a right shoulder template and a top sealing template,
the left side wall template comprises a left vertical plate and a left horizontal plate, the right side wall template comprises a right vertical plate and a right horizontal plate,
the bottom template is laid at the bottom of the urban portal tunnel, one end of the bottom template is connected with the left horizontal plate, the left horizontal plate is sequentially connected with the left vertical plate, the left shoulder template and the top sealing template upwards,
the other end of the bottom template is connected with the right horizontal plate, the right horizontal plate is sequentially connected with the right vertical plate, the right shoulder template and the top sealing template upwards,
the left side wall template is connected with a left embedded sleeve on the left side wall of the urban portal tunnel, and the right side wall template is connected with a right embedded sleeve on the right side wall of the urban portal tunnel.
When in use, the template for quickly lining the urban cave-shaped tunnel is manufactured in a processing plant in the step 1), wherein a first through hole is formed in the position, corresponding to the left embedded sleeve, of the left side wall template, and a second through hole is formed in the position, corresponding to the right embedded sleeve, of the right side wall template;
step 2) when the urban portal tunnel is excavated, embedding a left embedded sleeve on the left side wall of the urban portal tunnel, and embedding a right embedded sleeve on the right side wall of the urban portal tunnel;
step 3) laying the template for quickly lining the urban portal tunnel along the inner wall of the urban portal tunnel until the installation of the template unit in the whole urban portal tunnel is finished;
and 4) pouring concrete, cutting off a connecting piece which is arranged on the left side wall template and is connected with the left embedded sleeve after the concrete reaches a preset strength, cutting off a connecting piece which is arranged on the right side wall template and is connected with the right embedded sleeve, and dismantling the template for quickly lining the urban portal tunnel.
The template for quickly lining the urban portal tunnel has the advantage of improving the lining construction efficiency and lining utilization efficiency of the tunnel. The template for quickly lining the urban cave-shaped tunnel has an arch effect, and the side wall template and the surrounding rock are connected by the high-strength bolts, so that the template can be stabilized when concrete is poured without external support. Meanwhile, the bottom part of the side wall template is tightly combined with the bottom surrounding rock by adopting the foundation bolts, the upper load is transferred to the bottom surrounding rock, and the functions of pouring, vibrating and other loads can be borne without external support.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a formwork for rapid lining of an urban cave-shaped tunnel according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a capping template according to an embodiment of the present invention;
FIG. 3 is a schematic structural view of the connection between the left side wall form and the bottom of the tunnel in an urban cave according to the embodiment of the present invention;
fig. 4 is a schematic structural view of the connection between the left side wall formwork and the left side wall and left shoulder formwork of the tunnel in the shape of an urban doorway provided by the embodiment of the present invention;
fig. 5 is a schematic structural view of the connection of the capping template with the left shoulder template and the right shoulder template according to the embodiment of the present invention.
In the above FIGS. 1-5:
the steel bar net-shaped formwork comprises a bottom formwork 1, a left side wall formwork 2, a left shoulder formwork 3, a top sealing formwork 4, a right side wall formwork 5, a right shoulder formwork 6, a steel bar net block 7, foundation bolts 8, a left embedded sleeve 9, a right embedded sleeve 10, high-strength bolts 11, transverse rib plates 12 and longitudinal rib plates 13.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 5, fig. 1 is a schematic structural diagram of a template for rapid lining of an urban cave-shaped tunnel according to an embodiment of the present invention; FIG. 2 is a schematic structural diagram of a capping template according to an embodiment of the present invention; FIG. 3 is a schematic structural view of the connection between the left side wall form and the bottom of the tunnel in an urban cave according to the embodiment of the present invention; fig. 4 is a schematic structural view of the connection between the left side wall formwork and the left side wall and left shoulder formwork of the tunnel in the shape of an urban doorway provided by the embodiment of the present invention; fig. 5 is a schematic structural view of the connection of the capping template with the left shoulder template and the right shoulder template according to the embodiment of the present invention.
The template for rapid lining of the urban cave-shaped tunnel provided by the embodiment of the invention comprises a template unit, wherein the template unit comprises a bottom template 1, a left side wall template 2, a right side wall template 5, a left shoulder template 3, a right shoulder template 6 and a top sealing template 4,
the left side wall template 2 comprises a left vertical plate and a left horizontal plate, the right side wall template 5 comprises a right vertical plate and a right horizontal plate,
the bottom template 1 is laid at the bottom of the urban portal tunnel, one end of the bottom template is connected with a left horizontal plate, the left horizontal plate is upwards connected with a left vertical plate, a left shoulder template 3 and a top sealing template 4 in sequence,
the other end of the bottom template is connected with a right horizontal plate, the right horizontal plate is upwards sequentially connected with a right vertical plate, a right shoulder template 6 and a top sealing template 3,
the left side wall template 2 is connected with a left embedded sleeve 9 positioned on the left side wall of the urban portal tunnel, and the right side wall template 5 is connected with a right embedded sleeve 10 positioned on the right side wall of the urban portal tunnel.
The template for quickly lining the urban portal tunnel provided by the embodiment of the invention is a template which has lower cost, can be self-stabilized and can be quickly disassembled and assembled, and has the advantages of improving the lining construction efficiency and the lining utilization efficiency of the tunnel. The template for quickly lining the urban cave-shaped tunnel has an arch effect, and the side wall template and the surrounding rock are connected by the high-strength bolts 11, so that the template can be stabilized when concrete is poured without external support. Meanwhile, the bottom part of the side wall template is tightly combined with the bottom surrounding rock by adopting the foundation bolts 8, the upper load is transferred to the bottom surrounding rock, and the functions of pouring, vibrating and other loads can be borne without external support.
Specifically, the length of the template units along the axial direction of the urban portal tunnel is 2-4 meters, and the template units are a plurality of and are paved on the inner wall of the urban portal tunnel.
Specifically, a first through hole is formed in the left vertical plate to allow the left embedded sleeve 9 to pass through and be connected through a bolt, a second through hole is formed in the right vertical plate to allow the right embedded sleeve 10 to pass through and be connected through a bolt, the left horizontal plate is connected with the bottom of the urban portal tunnel through a bolt, and the right horizontal plate is connected with the bottom of the urban portal tunnel through a bolt.
Specifically, the bottom formwork 1, the left side wall formwork 2, the right side wall formwork 5, the left shoulder formwork 3, the right shoulder formwork 6 and the top sealing formwork 4 are all composed of steel plates, longitudinal rib plates 13 and transverse rib plates 12, wherein the longitudinal rib plates 13 and the transverse rib plates 12 are fixed on one sides of the steel plates. The longitudinal rib plate 13 and the transverse rib plate 12 are welded on the steel plate, and the thickness of the longitudinal rib plate 13, the thickness of the transverse rib plate 12 and the thickness of the steel plate are 5-10 mm.
Specifically, when the height of the urban cave-shaped tunnel is more than 5m, a plurality of left side wall templates 2 and right side wall templates 5 are provided,
when the height of the urban door-opening-shaped tunnel is not more than 5m, the left side wall template 2 and the right side wall template 5 are both one.
The embodiment of the invention also provides a rapid lining method for the urban portal tunnel, which comprises the following steps:
step 1) manufacturing a template for rapid lining of an urban portal tunnel in a processing plant according to any one of the embodiments, wherein a first through hole is formed in a position, corresponding to a left embedded sleeve 9, of a left side wall template 2, and a second through hole is formed in a position, corresponding to a right embedded sleeve 10, of a right side wall template 5;
step 2), when the urban portal tunnel is excavated, a left embedded sleeve 9 is embedded in the left wall of the urban portal tunnel, and a right embedded sleeve 10 is embedded in the right wall of the urban portal tunnel;
step 3) laying a template for quickly lining the urban portal tunnel along the inner wall of the urban portal tunnel until the installation of the template unit in the whole urban portal tunnel is finished;
and 4) pouring concrete, cutting off a connecting piece which is used for being connected with the left embedded sleeve 9 on the left side wall template 2 after the concrete reaches a preset strength, cutting off a connecting piece which is used for being connected with the right embedded sleeve 10 on the right side wall template 5, and removing the template for quickly lining the urban portal tunnel.
Specifically, in the step 3), the template for quickly lining the urban portal tunnel is assembled from bottom to top in the assembling and fixing sequence of the urban portal tunnel. The assembly and fixation sequence is as follows: the wall formwork comprises a bottom formwork 1, a left side wall formwork 2 and/or a right side wall formwork 5, a left shoulder formwork 3 and/or a right shoulder formwork 6 and finally a top sealing formwork 3.
Specifically, the step 4) further comprises the step of finally treating the residual connecting pieces in the concrete by adopting epoxy mortar.
In order to improve lining efficiency of an urban portal tunnel and improve production conditions in the tunnel, the template for quickly lining the urban portal tunnel provided by the embodiment of the invention adopts the following technical scheme, and the invention aims to provide a method for designing an assembled steel segment template suitable for quickly lining the urban portal tunnel, which is carried out according to the following steps:
And 3, prefabricating according to the bottom template 1, the side wall template, the shoulder template and the top sealing template 4 in the steel pipe sheet template processing plant respectively, namely prefabricating the bottom template 1, the left side wall template 2, the left shoulder template 3, the top sealing template 4, the right side wall template 5 and the right shoulder template 6. The side wall template is provided with holes at corresponding positions of the embedded sleeves, namely a first through hole is formed in the left vertical plate to allow the left embedded sleeve 9 to pass through and be connected through a bolt, and a second through hole is formed in the right vertical plate to allow the right embedded sleeve 10 to pass through and be connected through a bolt.
The bottom template 1, the side wall template, the shoulder template and the top sealing template 4 are all connected through high-strength bolts 11. And the foundation bolts 8 are adopted to connect the surrounding rock at the bottom of the tunnel and the bottom of the side wall template, so as to support the side wall template, the shoulder template and the capping template 4. The connecting bolts are adopted to connect the embedded sleeves and the side wall templates, so that slip forms and die running are prevented when concrete is poured.
And 5, repeating the step 2 to the step 4 until the installation of the whole city portal tunnel template unit is completed.
And 6, pouring concrete after the urban door opening-shaped steel duct piece template is assembled and fixed. And after the concrete reaches the preset strength, cutting off the connecting nut on the side wall template, dismantling the template, and treating the residual bolts in the concrete by adopting epoxy mortar.
And 7, repeating the step 2 to the step 6 until the lining construction of the whole city portal tunnel is completed.
The template for quickly lining the urban portal tunnel provided by the embodiment of the invention has the advantage of improving the lining construction efficiency and lining utilization efficiency of the tunnel. Because the formwork has an arch effect, and the high-strength bolts 11 are additionally arranged to connect the side wall formwork and the surrounding rock, the formwork can achieve self-stability during concrete pouring without external support. Meanwhile, the bottom of the side wall template is tightly combined with the bottom surrounding rock by the foundation bolts 8, the upper load is transmitted to the bottom surrounding rock, and the effect of pouring, vibrating and other loads can be borne without external support.
In specific implementation, the method for designing the assembled steel segment template suitable for rapid lining of the urban portal tunnel is carried out according to the following steps:
And 2, embedding a sleeve in the surrounding rock of the side wall when the urban portal tunnel is excavated.
And 3, prefabricating according to the bottom template 1, the side wall template, the shoulder template and the top sealing template 4 in the steel pipe sheet template processing plant. The bottom template 1, the side wall template, the shoulder template and the capping template 4 are all steel frame construction, namely: the steel plate comprises a steel plate, and a transverse rib plate 12 and a longitudinal rib plate 13 which are welded on the steel plate, wherein the thickness of the transverse rib plate 12 and the thickness of the longitudinal rib plate 13 are 10 mm. And the side wall template is provided with holes at the corresponding parts of the side wall template and the embedded sleeves.
And 5, repeating the step 2 to the step 4 until the installation of the whole city portal tunnel template unit is completed.
And 6, after the urban door opening-shaped steel segment template is assembled and fixed, assembling the plurality of unit template rings to a set length, and connecting the unit template rings through high-strength bolts 11 to pour the integral tunnel lining structure. And after the concrete reaches the preset strength, cutting off the connecting nut on the side wall template, dismantling the template, and treating the residual bolts in the concrete by adopting epoxy mortar.
And 7, repeating the step 2 to the step 6 until the lining construction of the whole city portal tunnel is completed.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A template for rapid lining of an urban cave-shaped tunnel is characterized by comprising a template unit, wherein the template unit comprises a bottom template, a left side wall template, a right side wall template, a left shoulder template, a right shoulder template and a capping template, wherein,
the left side wall template comprises a left vertical plate and a left horizontal plate, the right side wall template comprises a right vertical plate and a right horizontal plate,
the bottom template is laid at the bottom of the urban portal tunnel, one end of the bottom template is connected with the left horizontal plate, the left horizontal plate is sequentially connected with the left vertical plate, the left shoulder template and the top sealing template upwards,
the other end of the bottom template is connected with the right horizontal plate, the right horizontal plate is sequentially connected with the right vertical plate, the right shoulder template and the top sealing template upwards,
the left side wall template is connected with a left embedded sleeve on the left side wall of the urban portal tunnel, and the right side wall template is connected with a right embedded sleeve on the right side wall of the urban portal tunnel.
2. The template for rapid lining of an urban portal tunnel according to claim 1, wherein the length of said template unit in the axial direction of the urban portal tunnel is 2-4 m,
the template units are multiple and are paved on the inner wall of the urban portal tunnel.
3. The template for the rapid lining of the urban cave-shaped tunnel according to claim 1, wherein the left vertical plate is provided with a first through hole for the left embedded sleeve to pass through and be connected through a bolt,
the right vertical plate is provided with a second through hole for the right embedded sleeve to pass through and be connected through a bolt,
the left horizontal plate is connected with the bottom of the urban portal tunnel through a bolt, and the right horizontal plate is connected with the bottom of the urban portal tunnel through a bolt.
4. The template for rapid lining of an urban cave-shaped tunnel according to claim 1, wherein the bottom template, the left side wall template, the right side wall template, the left shoulder template, the right shoulder template and the capping template are all composed of a steel plate, and a longitudinal rib plate and a transverse rib plate which are fixed on one side of the steel plate.
5. The formwork for rapid lining of an urban cave-shaped tunnel according to claim 4, wherein the longitudinal ribs and the transverse ribs are welded on the steel plate,
the thickness of the longitudinal rib plates, the thickness of the transverse rib plates and the thickness of the steel plate are all 5-10 mm.
6. The template for rapid lining of an urban cave-shaped tunnel according to claim 1, wherein when the height of the urban cave-shaped tunnel is more than 5m, the left side wall template and the right side wall template are both plural,
and when the height of the urban door-opening-shaped tunnel is not more than 5 meters, the left side wall template and the right side wall template are both one.
7. A rapid lining method for an urban portal tunnel is characterized by comprising the following steps:
step 1) manufacturing the template for the rapid lining of the urban cave-shaped tunnel according to any one of the claims 1 to 6 in a processing plant, wherein a first through hole is formed in the position, corresponding to the left embedded sleeve, of the left side wall template, and a second through hole is formed in the position, corresponding to the right embedded sleeve, of the right side wall template;
step 2) when the urban portal tunnel is excavated, embedding a left embedded sleeve on the left side wall of the urban portal tunnel, and embedding a right embedded sleeve on the right side wall of the urban portal tunnel;
step 3) laying the template for quickly lining the urban portal tunnel along the inner wall of the urban portal tunnel until the installation of the template unit in the whole urban portal tunnel is finished;
and 4) pouring concrete, cutting off a connecting piece which is arranged on the left side wall template and is connected with the left embedded sleeve after the concrete reaches a preset strength, cutting off a connecting piece which is arranged on the right side wall template and is connected with the right embedded sleeve, and dismantling the template for quickly lining the urban portal tunnel.
8. The rapid lining method for an urban cave-shaped tunnel according to claim 7,
in the step 3), the template for rapid lining of the urban portal tunnel is assembled from bottom to top in the assembling and fixing sequence of the urban portal tunnel.
9. The rapid lining method for an urban cave tunnel according to claim 8, wherein the assembling and fixing sequence is as follows: the bottom template, the left side wall template or the right side wall template, the left shoulder template or the right shoulder template, and finally the top sealing template.
10. The rapid lining method for an urban cave tunnel according to claim 9, wherein the step 4) further comprises finally treating the remaining connecting members in the concrete with epoxy mortar.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010386980.9A CN111365033A (en) | 2020-05-09 | 2020-05-09 | Rapid lining method and template for tunnel-shaped tunnel of city portal |
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| CN202010386980.9A CN111365033A (en) | 2020-05-09 | 2020-05-09 | Rapid lining method and template for tunnel-shaped tunnel of city portal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111236976A (en) * | 2020-01-21 | 2020-06-05 | 黄河勘测规划设计研究院有限公司 | Rapid lining method and template for urban portal tunnel with reinforced concrete bottom plate |
| CN111365034A (en) * | 2020-05-09 | 2020-07-03 | 黄河勘测规划设计研究院有限公司 | Method and template for rapid lining of egg-shaped tunnel |
| CN113187520A (en) * | 2021-06-03 | 2021-07-30 | 中铁建大桥工程局集团第四工程有限公司 | Method for supporting surrounding rock of diversion tunnel |
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| JPH1122390A (en) * | 1997-07-03 | 1999-01-26 | Nishimatsu Constr Co Ltd | Form device for tunnel lining and lining method using the same |
| JP2012036564A (en) * | 2010-08-03 | 2012-02-23 | Kajima Corp | Method and device for placing lining concrete wall inside tunnel |
| CN110700210A (en) * | 2019-11-09 | 2020-01-17 | 黄河勘测规划设计研究院有限公司 | Assembly type steel segment template for rapid lining of horseshoe-shaped tunnel and application method |
| CN110700211A (en) * | 2019-11-09 | 2020-01-17 | 黄河勘测规划设计研究院有限公司 | Assembly type steel segment template construction method suitable for rapid lining of horseshoe-shaped tunnel |
| CN110778337A (en) * | 2019-11-09 | 2020-02-11 | 黄河勘测规划设计研究院有限公司 | Fabricated steel segment template construction method suitable for rapid lining of circular tunnel |
| CN110778330A (en) * | 2019-11-09 | 2020-02-11 | 黄河勘测规划设计研究院有限公司 | Prefabricated reinforced concrete bottom plate for rapid lining of horseshoe tunnel and construction method |
| CN111365034A (en) * | 2020-05-09 | 2020-07-03 | 黄河勘测规划设计研究院有限公司 | Method and template for rapid lining of egg-shaped tunnel |
| CN212054734U (en) * | 2020-05-09 | 2020-12-01 | 黄河勘测规划设计研究院有限公司 | A template that is used for quick lining cutting of city portal tunnel |
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| CN111236976A (en) * | 2020-01-21 | 2020-06-05 | 黄河勘测规划设计研究院有限公司 | Rapid lining method and template for urban portal tunnel with reinforced concrete bottom plate |
| CN111365034A (en) * | 2020-05-09 | 2020-07-03 | 黄河勘测规划设计研究院有限公司 | Method and template for rapid lining of egg-shaped tunnel |
| CN113187520A (en) * | 2021-06-03 | 2021-07-30 | 中铁建大桥工程局集团第四工程有限公司 | Method for supporting surrounding rock of diversion tunnel |
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