CN117090241A - Temporary plugging structure for two ends or reserved intersection of open cut tunnel and construction method - Google Patents

Temporary plugging structure for two ends or reserved intersection of open cut tunnel and construction method Download PDF

Info

Publication number
CN117090241A
CN117090241A CN202311034577.XA CN202311034577A CN117090241A CN 117090241 A CN117090241 A CN 117090241A CN 202311034577 A CN202311034577 A CN 202311034577A CN 117090241 A CN117090241 A CN 117090241A
Authority
CN
China
Prior art keywords
temporary plugging
wall
tunnel
tunnel structure
outer side
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311034577.XA
Other languages
Chinese (zh)
Inventor
李建林
孙烨
周长林
吴金刚
郭淞
王浩春
张金波
李婧
张智航
刘世行
祁亚雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing General Municipal Engineering Design and Research Institute Co Ltd
Original Assignee
Beijing General Municipal Engineering Design and Research Institute Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing General Municipal Engineering Design and Research Institute Co Ltd filed Critical Beijing General Municipal Engineering Design and Research Institute Co Ltd
Priority to CN202311034577.XA priority Critical patent/CN117090241A/en
Publication of CN117090241A publication Critical patent/CN117090241A/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D29/00—Independent underground or underwater structures; Retaining walls
    • E02D29/045—Underground structures, e.g. tunnels or galleries, built in the open air or by methods involving disturbance of the ground surface all along the location line; Methods of making them
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
    • E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
    • E02D31/025—Draining membranes, sheets or fabric specially adapted therefor, e.g. with dimples

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Hydrology & Water Resources (AREA)
  • Lining And Supports For Tunnels (AREA)

Abstract

The application discloses a temporary plugging structure for two ends or reserved intersections of an open cut tunnel and a construction method, wherein the temporary plugging structure comprises a tunnel structure top plate, a tunnel structure bottom plate, a tunnel structure side wall and a temporary plugging wall, and further comprises the following components: the steel edge rubber water stop belt is paved on the outer side of the temporary plugging wall; the first brick wall is arranged at the outer side of the steel edge rubber water stop; the full-package waterproof layer is arranged on the outer side of the first brick wall; the second brick wall is arranged at the outer side of the full-package waterproof layer; the interior of the temporary plugging wall adopts glass fiber reinforced plastics. The application provides an excellent choice for effectively constructing the temporary plugging structure type of the open-cut tunnel, and when the temporary plugging structure and the construction method are adopted for plugging, the temporary plugging structure can be conveniently detached, the manufacturing cost is reduced, the sealing property of the structure can be ensured, and the effective water stop is realized.

Description

Temporary plugging structure for two ends or reserved intersection of open cut tunnel and construction method
Technical Field
The application relates to a temporary blocking wall structure of a tunnel constructed by an open cut method and a construction method.
Background
Along with the large number of construction of underground open cut tunnels, the crossing situation is more and more unavoidable, so that the construction time sequence difference between different tunnels can be generated, and interfaces are required to be reserved at the end parts of the tunnels and the positions of intersections; in addition, due to the requirements of construction conditions and construction progress, the tunnel can be subjected to sectional construction, so that temporary plugging is needed to be performed at the end part of the tunnel, at a reserved interface or at a sectional part, the safety and the integrity of a tunnel structure are ensured, and temporary plugging is removed when the tunnel is constructed to the position in the later stage, so that the whole tunnel is penetrated.
In order to facilitate connection on a later newly-built tunnel structure, temporary plugging of the tunnel is usually arranged at the deformation joint. The current temporary plugging method for the underground open cut tunnel mainly fills flexible materials at the position of a buried water stop in the end part of the tunnel, protects the water stop, and then plugs the outside of the plugging structure by utilizing steel plates or cast concrete.
The disadvantage of this form of construction is that: a. the shutoff wall in tunnel tip outside can not effectually be connected with tunnel main part structure, and overall stability is poor. b. The flexible material filled in the water stop is easy to be extruded and deformed, so that the performance of the water stop is affected.
Therefore, in the existing temporary plugging structure, when plugging is performed, the integrity of the main structure is protected, but the sealing effect of the plugging structure is poor, and the waterproof effect is poor.
Disclosure of Invention
The application aims to provide a temporary plugging structure for two ends or reserved intersections of an open cut tunnel, which can solve the technical problems.
According to one aspect of the application, there is provided a temporary plugging structure for both ends or reserved intersections of an open cut tunnel, including a tunnel structure top plate, a tunnel structure bottom plate, a tunnel structure side wall and a temporary plugging wall, and further including: the steel edge rubber water stop belt is paved on the outer side of the temporary plugging wall; the first brick wall is arranged at the outer side of the steel edge rubber water stop; the full-package waterproof layer is arranged on the outer side of the first brick wall; and the second brick wall is arranged at the outer side of the full-package waterproof layer.
Preferably, the interior of the temporary plugging wall adopts glass fiber reinforced plastic.
Preferably, the glass fiber reinforced plastic is pre-buried at the intersection of the tunnel structure top plate and the temporary plugging wall, the intersection of the tunnel structure bottom plate and the temporary plugging wall and the intersection of the tunnel structure side wall and the temporary plugging wall.
Preferably, the fiberglass tendon meets the anchoring length requirement.
Preferably, the glass fiber ribs are firmly bound by adopting iron wires or nylon ropes.
Preferably, the outer part of the steel edge rubber water stop is flush with the first brick wall.
Preferably, the lower part of the tunnel structure bottom plate further comprises a lower cushion layer of the tunnel structure bottom plate, and the lower cushion layer is used for dispersing load pressure.
According to another aspect of the application, a construction method of temporary plugging structures at two ends or reserved intersections of an open cut tunnel is provided, comprising the following steps: pouring a tunnel structure top plate, a tunnel structure bottom plate and a cushion layer at the lower part of the tunnel structure bottom plate, and then pouring a tunnel structure side wall; and secondly, embedding glass fiber ribs at the intersection of the tunnel structure top plate and the temporary plugging wall, the intersection of the tunnel structure bottom plate and the temporary plugging wall and the intersection of the tunnel structure side wall and the temporary plugging wall, and finishing the construction of the tunnel main body structure.
Preferably, after the second step, the method further includes: and thirdly, pouring the temporary plugging wall and paving a steel edge rubber water stop belt outside the temporary plugging wall.
Preferably, after the third step, the method further includes: and fourthly, constructing a first brick wall on the outer side of the steel edge rubber water stop belt, paving a full-package waterproof layer, and constructing a second brick wall. The application discloses a temporary plugging structure for two ends or reserved intersections of an open cut tunnel and a construction method. The temporary plugging structure comprises a tunnel structure top plate, a tunnel structure bottom plate, a tunnel structure side wall and a temporary plugging wall, wherein the temporary plugging structure further comprises: the steel edge rubber water stop belt is paved on the outer side of the temporary plugging wall; the first brick wall is arranged at the outer side of the steel edge rubber water stop; the full-package waterproof layer is arranged on the outer side of the first brick wall; and the second brick wall is arranged at the outer side of the full-package waterproof layer. The temporary plugging structure of the end or the reserved intersection of the tunnel is an indispensable link in the construction process, and the existing plugging structure is difficult to disassemble in the later period, so that the cost is usually increased, the main structure is damaged, or the sealing effect is poor, and the water stopping performance is poor. When the temporary plugging structure is used for plugging, the temporary plugging structure can be conveniently detached, the manufacturing cost is reduced, and the sealing property and the effective water stop of the structure can be ensured, so that the temporary plugging structure provides an excellent choice for the effective application of the temporary plugging structure of the open-cut tunnel.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application and do not constitute a limitation on the application. In the drawings:
fig. 1 is a plan structure diagram of temporary plugging structures at two ends or reserved intersections of an open cut tunnel according to an embodiment of the application;
fig. 2 is a vertical view structure diagram of temporary plugging structures at two ends or reserved intersections of an open cut tunnel according to an embodiment of the application.
In the figure: 1. a tunnel structure roof; 2. a tunnel structure bottom plate; 3. a tunnel structure side wall; 4. temporary plugging walls; 5. a first brick wall; 6. a second brick wall; 7. a steel edge rubber water stop; 8. glass fiber ribs; 9. a full-package waterproof layer; 2-1, a cushion layer at the lower part of the bottom plate of the tunnel structure.
Detailed Description
It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other. The application will be described in detail below with reference to the drawings in connection with embodiments.
Reference will now be made in detail to the various embodiments of the application, examples of which are illustrated in the accompanying drawings and described below. For convenience in explanation and accurate definition in the appended claims, the terms "upper", "lower", "inner" and "outer" are used to describe features of the exemplary embodiments with reference to the positions of such features as displayed in the figures.
As shown in fig. 1 and 2, the application provides a temporary plugging structure for both ends or reserved intersections of an open cut tunnel, which comprises a tunnel structure top plate 1, a tunnel structure bottom plate 2, a tunnel structure side wall 3 and a temporary plugging wall 4, and further comprises: the steel edge rubber water stop belt 7 is paved on the outer side of the temporary plugging wall 4; the first brick wall 5 is arranged at the outer side of the steel edge rubber water stop 7; the full-package waterproof layer 9 is arranged on the outer side of the first brick wall 5; and the second brick wall 6 is arranged outside the full-covered waterproof layer 9.
In the related art, flexible materials are filled at the position of a buried water stop at the end part of a tunnel to protect the water stop, and then the outside of the plugging structure is plugged by utilizing a steel plate or poured concrete, so that the structure has the defects of poor overall stability, poor water stop performance and the like. In the embodiment of the application, the steel edge rubber water stop and the waterproof layer are arranged to be lapped and sealed, and the two brick walls are arranged, so that the water stop can be fully protected while the stress support is met, and a good water stop and waterproof effect is achieved.
According to the embodiment of the application, the inner part of the temporary plugging wall 4 adopts glass fiber reinforced plastic 8. In the related art, the casting and later dismantling construction difficulties of the reinforced concrete wall are large, so that the engineering cost is increased, and the safety and the integrity of the main structure are influenced by the dismantling of the wall. In the embodiment of the application, the glass fiber reinforced plastic is adopted to replace common steel bars, the concrete plugging wall is poured, and the glass fiber reinforced plastic is relatively simple in dismantling while meeting the stress requirement, so that the damage to the main structure can be greatly reduced.
According to the embodiment of the application, the glass fiber reinforced plastic 8 is pre-buried at the intersection of the tunnel structure top plate 1 and the temporary plugging wall 4, the intersection of the tunnel structure bottom plate 2 and the temporary plugging wall 4 and the intersection of the tunnel structure side wall 3 and the temporary plugging wall 4. In the related art, the plugging structure is difficult to disassemble in the later period, and the plugging structure can realize the effects of convenience in disassembly and low cost by adopting the mode for plugging.
According to an embodiment of the application, the glass fiber reinforcement 8 meets the anchoring length requirements.
According to the embodiment of the application, the glass fiber reinforced plastic 8 is firmly bound by adopting iron wires or nylon ropes.
According to an embodiment of the application, the outer part of the steel edge rubber water stop 7 is flush with the first brick wall 5.
According to the embodiment of the application, the lower part of the tunnel structure bottom plate 2 also comprises a lower cushion layer 2-1 of the tunnel structure bottom plate, which is used for dispersing load pressure.
The application also provides a construction method of the temporary plugging structure of the two ends or the reserved intersection of the open cut tunnel, which comprises the following steps: firstly, pouring a tunnel structure top plate 1, a tunnel structure bottom plate 2 and a cushion layer 2-1 at the lower part of the tunnel structure bottom plate, and then pouring a tunnel structure side wall 3; and secondly, embedding glass fiber reinforced plastic 8 at the intersection of the tunnel structure top plate 1 and the temporary plugging wall 4, the intersection of the tunnel structure bottom plate 2 and the temporary plugging wall 4 and the intersection of the tunnel structure side wall 3 and the temporary plugging wall 4, and finishing the construction of the tunnel main body structure.
According to an embodiment of the present application, after the second step, further includes: and thirdly, pouring the temporary plugging wall 4 and paving a steel edge rubber water stop 7 on the outer side of the temporary plugging wall.
According to an embodiment of the present application, after the third step, further includes: and fourthly, constructing a first brick wall 5 on the outer side of the steel edge rubber water stop 7, paving a full-covered waterproof layer 9, and constructing a second brick wall 6.
The following examples are given for the purpose of illustration only and are not intended to limit the embodiments of the application. Various other changes, modifications, substitutions, and alterations herein will become apparent to those skilled in the art without departing from the spirit and scope of the application as defined by the appended claims.
Embodiments of the present application are further described with reference to fig. 1 and 2. Fig. 1 is a temporary plugging plane structure diagram of an open cut tunnel end or a reserved intersection, fig. 2 is a vertical structure diagram, and the main technical scheme is as follows:
as shown in fig. 1 and 2, the temporary plugging structure for the end part or the reserved intersection of the open cut tunnel comprises: tunnel structure roof 1, tunnel structure bottom plate 2, tunnel structure side wall 3 and interim shutoff wall 4 still include: the steel edge rubber water stop belt 7 is paved on the outer side of the temporary plugging wall 4; the first brick wall 5 is arranged at the outer side of the steel edge rubber water stop 7; the full-package waterproof layer 9 is arranged on the outer side of the first brick wall 5; and the second brick wall 6 is arranged outside the full-covered waterproof layer 9.
When the open-cut tunnel is constructed to the two ends or the reserved intersection position, before the temporary plugging wall 4 is constructed, the glass fiber ribs 8 are pre-embedded in the top, the bottom and the side walls of the intersection with the plugging wall, and the glass fiber ribs 8 in the structure are required to meet the requirement of the anchoring length; finally binding glass fiber ribs 8 in the plugging wall and pouring concrete of the plugging wall; the glass fiber reinforced plastic 8 is easy to shift or deform due to light weight when concrete is poured, so specific measures are needed to ensure the accuracy of the binding position of the glass fiber reinforced plastic 8, and the specific measures can use iron wires or nylon ropes and the like to firmly bind the glass fiber reinforced plastic 8.
The overhanging part of the steel edge rubber water stop 7 is flush with the protection brick wall, namely the first brick wall 5, a waterproof layer 9 is arranged outside the brick wall, and the second brick wall 6 is used for protecting the waterproof layer. When the brick protection wall is dismantled in the follow-up construction, special attention must be paid to the damage of pre-buried waterstop.
The concrete construction steps are as follows:
pouring a tunnel top plate 1, a bottom plate 2 and a cushion layer 2-1 under the bottom plate, pouring a tunnel side wall 3, reserving a plugging wall glass fiber reinforced plastic 8, and finishing construction of a tunnel main body structure;
pouring the temporary plugging wall 4, paving the outer steel edge rubber water stop belt 7, constructing a first brick wall 5 outside the water stop belt, paving a full-covered waterproof layer 9, and constructing a second brick wall 6 to protect the waterproof layer 9.
It should be noted that in this document, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims (10)

1. The utility model provides an open cut tunnel both ends or reserve interim block structure of intersection, includes tunnel structure roof (1), tunnel structure bottom plate (2), tunnel structure side wall (3) and interim block wall (4), its characterized in that still includes:
the steel edge rubber water stop belt (7) is paved on the outer side of the temporary plugging wall (4);
the first brick wall (5) is arranged at the outer side of the steel edge rubber water stop belt (7);
the full-package waterproof layer (9) is arranged on the outer side of the first brick wall (5);
the second brick wall (6) is arranged at the outer side of the full-package waterproof layer (9).
2. Temporary plugging structure according to claim 1, characterized in that the interior of the temporary plugging wall (4) is made of glass fiber reinforced plastic (8).
3. Temporary plugging structure according to claim 2, characterized in that the glass fiber ribs (8) are pre-buried at the intersections of the tunnel structure top plate (1) and the temporary plugging wall (4), at the intersections of the tunnel structure bottom plate (2) and the temporary plugging wall (4) and at the intersections of the tunnel structure side walls (3) and the temporary plugging wall (4).
4. A temporary plugging structure according to claim 3, wherein the glass fiber ribs (8) meet the requirement of an anchoring length.
5. Temporary plugging structure according to claim 4, characterized in that the glass fiber reinforcement (8) is firmly bound by iron wires or nylon ropes.
6. Temporary plugging structure according to claim 1, characterized in that the outer portion of the steel edge rubber water stop (7) is flush with the first brick wall (5).
7. Temporary plugging structure according to claim 1, characterized in that the tunnel structure floor (2) further comprises a tunnel structure floor lower cushion layer (2-1) for distributing load pressure below.
8. The construction method of the temporary plugging structure of the two ends or the reserved intersection of the open cut tunnel is characterized by comprising the following steps:
firstly, pouring a tunnel structure top plate (1), a tunnel structure bottom plate (2) and a cushion layer (2-1) at the lower part of the tunnel structure bottom plate, and then pouring a tunnel structure side wall (3);
step two, pre-burying glass fiber reinforced plastic (8) at the intersection of the tunnel structure top plate (1) and the temporary plugging wall (4), the intersection of the tunnel structure bottom plate (2) and the temporary plugging wall (4) and the intersection of the tunnel structure side wall (3) and the temporary plugging wall (4), and finishing the construction of the tunnel main body structure.
9. The construction method according to claim 8, further comprising, after the second step:
and thirdly, pouring the temporary plugging wall (4) and paving a steel edge rubber water stop belt (7) on the outer side of the temporary plugging wall.
10. The construction method according to claim 9, further comprising, after step three:
and fourthly, constructing a first brick wall (5) on the outer side of the steel edge rubber water stop belt (7), paving a full-covered waterproof layer (9), and constructing a second brick wall (6).
CN202311034577.XA 2023-08-16 2023-08-16 Temporary plugging structure for two ends or reserved intersection of open cut tunnel and construction method Pending CN117090241A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311034577.XA CN117090241A (en) 2023-08-16 2023-08-16 Temporary plugging structure for two ends or reserved intersection of open cut tunnel and construction method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311034577.XA CN117090241A (en) 2023-08-16 2023-08-16 Temporary plugging structure for two ends or reserved intersection of open cut tunnel and construction method

Publications (1)

Publication Number Publication Date
CN117090241A true CN117090241A (en) 2023-11-21

Family

ID=88772718

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311034577.XA Pending CN117090241A (en) 2023-08-16 2023-08-16 Temporary plugging structure for two ends or reserved intersection of open cut tunnel and construction method

Country Status (1)

Country Link
CN (1) CN117090241A (en)

Similar Documents

Publication Publication Date Title
CN206545228U (en) A kind of piping lane with waterproof construction
CN109235499A (en) A kind of open cut hypogee Standard formula construction method
CN104480846B (en) A kind of construction method splicing bridge
CN103821180B (en) The two water-stopping structure of a kind of concrete extension joint
CN103774663A (en) Waterproof structure and construction method of basement anti-floating anchor bar
CN108660952A (en) A kind of Incremental Launching Method that the prefabricated car case of assembly concrete is logical
KR101167511B1 (en) Underpass using precast concrete pile and method for constructing the same
CN205712204U (en) A kind of multiple waterstop and waterproof construction thereof
KR20120029625A (en) Construction method of steel composite girder bridge applying precast deck
CN108589507A (en) Spelling fills precast concrete beam bridge superstructure and its construction method
CN112012763B (en) Construction method of double-layer primary support multi-arch tunnel structure
CN220486530U (en) Temporary plugging structure for two ends or reserved intersection of open cut tunnel
CN105821908A (en) Multiple water stop belt, waterproof structure and construction method of waterproof structure
JP4093428B2 (en) High-strength reinforced concrete precast plate
CN210597400U (en) Induced joint structure of concrete overlength structure
CN208685424U (en) Spelling fills precast concrete beam bridge superstructure
CN117090241A (en) Temporary plugging structure for two ends or reserved intersection of open cut tunnel and construction method
CN204645093U (en) Poured band of outer wall of basement advanced processing constructs
CN104314104B (en) Deformation joint setting method for oblique crossing with underground box culvert
CN203834477U (en) Waterproof structure of anti-floating anchor bars of basement
CN212223970U (en) Prefabricated apron post-cast strip stagnant water temporary enclosed construction
CN209960000U (en) Concrete-encapsulated pipeline structure
CN111917092A (en) Reinforced resin material assembled cable trench structure and manufacturing method thereof
KR101523634B1 (en) Environment friendly arch structure of long-span steel composite earth works
CN208685664U (en) A kind of city branch line underground pipe gallery construction system

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination