CN213741213U

CN213741213U - Concrete utility tunnel partition panel

Info

Publication number: CN213741213U
Application number: CN202022239324.4U
Authority: CN
Inventors: 刘军; 杜钊
Original assignee: Zhonglu Dura International Engineering Co ltd
Current assignee: ZHONGLU DURA INTERNATIONAL ENGINEERING Co.,Ltd.
Priority date: 2020-10-10
Filing date: 2020-10-10
Publication date: 2021-07-20
Anticipated expiration: 2030-10-10

Abstract

The utility model discloses a concrete utility tunnel partition panel, including shield structure utility tunnel and partition plate body, be provided with the partition plate body in the shield structure utility tunnel, still include: wet seam and concrete boundary beam, wet seam has been pour between shield structure utility tunnel inner wall to the compartment plate body, and the compartment plate body includes UHPC rib plate roof beam and stand built-in fitting, is provided with the stand built-in fitting in the UHPC rib plate roof beam, and the both ends of compartment plate body all are provided with the spread groove, and this concrete utility tunnel compartment plate full play ultrahigh performance concrete super high strength, the super high toughness pass through structural optimization design for the structure dead weight reduces 40% -60%. Not only improve the efficiency of construction and greatly reduced construction safety risk in the installation, through prefabricating in the mill, do not influence other process constructions of engineering, and whole construction process is simple, reliable, and the process is few and simple and easy, shortens construction period greatly, and the characteristics of the overlength durability of make full use of ultra high performance concrete for whole structure reaches later stage non-maintaining's characteristics.

Description

Concrete utility tunnel partition panel

Technical Field

The utility model relates to a partition panel technical field specifically is a concrete utility tunnel partition panel.

Background

In order to solve the problem of urban traffic jam, an underground comprehensive pipe gallery system is usually built in a city, so that the maintenance and the overhaul of municipal facilities such as electric power, communication, gas, water supply and drainage and the like are greatly facilitated.

The shield comprehensive pipe gallery partition plate commonly used in modern times mostly adopts a common concrete cast-in-place method or concrete prefabricated installation construction, the space in the comprehensive pipe gallery is small, the construction process is complex and the construction is inconvenient by adopting the cast-in-place method, the cast-in-place method construction has great influence on the whole construction period, and great hidden troubles are caused to the construction quality and the construction safety. The prefabricated common concrete partition plate has large self weight and large structural stress influence, is difficult to install, and has high requirements on durability, fire resistance, seepage resistance and the like of the structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a concrete utility tunnel partition panel to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a concrete utility tunnel partition panel, constructs utility tunnel and partition plate body including the shield, the shield is provided with the partition plate body in the utility tunnel, still includes: wet seam and concrete boundary beam, wet seam has been pour between compartment plate body and the shield structure utility tunnel inner wall, the compartment plate body includes UHPC rib plate roof beam and stand built-in fitting, be provided with the stand built-in fitting in the UHPC rib plate roof beam, the both ends of compartment plate body all are provided with the spread groove.

Preferably, the inner wall symmetry of shield structure utility tunnel is provided with the concrete boundary beam, the top at the concrete boundary beam is installed to the compartment plate body.

Preferably, the inner wall symmetry of shield structure utility tunnel is provided with the dark bracket of shaped steel, and the dark bracket of shaped steel is fixed in the spread groove on the compartment plate body.

Preferably, the wet joint is poured micro-expanded fine-stone concrete.

Preferably, the thickness of the panel of the UHPC rib plate beam is 6 meters, the height of the rib is 24 centimeters, and the ribs of the UHPC rib plate beam are arranged in a cross shape.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses the super high performance concrete of full play intensity, the super high toughness of pass through structural optimization design for the structure dead weight reduces 40% -60%. Not only improve the efficiency of construction and greatly reduced construction safety risk in the installation.

2. The utility model discloses a prefabricating in mill does not influence other process constructions of engineering, and whole construction simple process, reliable, and the process is few and simple and easy, shortens construction period greatly.

3. The utility model discloses the characteristics of make full use of ultra high performance concrete overlength durability for entire structure reaches later stage non-maintaining's characteristics, greatly reduced later stage maintenance, maintenance cost.

4. The utility model discloses a structural optimization designs, full play ultra high performance concrete's each big advantage for the cost greatly reduced of ultra high performance concrete in using reaches at the project construction initial stage and keeps level with ordinary concrete partition board cost, and the characteristics that full life cycle economic nature is showing.

Drawings

FIG. 1 is a schematic structural view of a sectional view of a partition plate according to the present invention;

fig. 2 is a schematic structural view of a partition plate of the present invention.

In the figure: 1. a shield comprehensive pipe gallery; 2. a compartment plate body; 3. wet seaming; 4. concrete boundary beams; 5. a UHPC ribbed panel beam; 6. an upright post embedded part; 7. hidden brackets made of profile steel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: the utility model provides a concrete utility tunnel partition board, includes shield utility tunnel 1 and partition plate body 2, shield is provided with partition plate body 2 in the utility tunnel 1, still includes: the shield comprehensive pipe gallery comprises a wet joint 3 and a concrete boundary beam 4, wherein the wet joint 3 is poured between a partition plate body 2 and the inner wall of a shield comprehensive pipe gallery 1, the partition plate body 2 comprises a UHPC rib plate beam 5 and an upright post embedded part 6, the upright post embedded part 6 is arranged in the UHPC rib plate beam 5, and connecting grooves are formed in two ends of the partition plate body 2;

it should be noted that, because of its ultra-thin structural design, the ultra-high performance concrete compartment plate body 2 has a higher requirement for the fluidity of the ultra-high performance concrete in the pouring process, before the concrete is discharged, the fluidity needs to be strictly controlled through tests, because of the circular structure of the utility tunnel, the precision requirement for prefabricating the compartment plate body 2 in the installation process is higher, because the thickness of the designed compartment plate body 2 is thinner, it needs to be paid particular attention in the hoisting and transferring process, and it is prevented from being subjected to anti-folding and anti-torsion damages.

Please refer to fig. 1, the inner wall of the shield utility tunnel 1 is symmetrically provided with concrete boundary beams 4, the partition plate bodies 2 are installed on the top of the concrete boundary beams 4, the arrangement of the concrete boundary beams 4 plays a role in stably supporting the partition plate bodies 2, and the stability of the partition plate bodies 2 in the shield utility tunnel 1 is ensured.

Referring to fig. 1 and 2, the inner wall of the shield comprehensive pipe gallery 1 is symmetrically provided with profile steel hidden brackets 7, and the profile steel hidden brackets 7 are fixed in the connecting grooves on the partition plate bodies 2, so that the stability of the connection between the partition plate bodies 2 and the shield comprehensive pipe gallery 1 is ensured.

Referring to fig. 2, the wet joint 3 is poured micro-expanded fine aggregate concrete, so that the stability of connection is ensured.

Referring to fig. 2, the panel thickness of the UHPC rib plate beam 5 is 6 meters, the rib height is 24 centimeters, and the ribs of the UHPC rib plate beam 5 are arranged in a grid shape, according to the ultrahigh strength and the ultrahigh durability of the UHPC, through calculation analysis and process study, it is recommended to use a prefabricated rib plate type UHPC plate, wherein the panel thickness is 6 meters, the rib height is 24 centimeters, and the ribs are arranged in a grid shape, the specific size is determined by the size of the project pipe gallery where the UHPC is located, the UHPC is special concrete with ultrahigh strength, ultralow water absorption, ultrahigh durability and erosion resistance, the UHPC rib plate beam 5 is adopted to fully exert the ultrahigh strength and ultrahigh toughness of the ultrahigh performance concrete, the dead weight of the structure is reduced by 40% -60% through structural optimization design, and the construction efficiency is improved and the construction safety risk is greatly reduced in the installation process.

The construction method of the ultra-high performance concrete partition board comprises the following steps: corbel longeron cast-in-place construction in the prefabricated of compartment plate body 2, compartment plate body 2 installation, wet connecing, 3 constructions, concrete step is as follows:

the method comprises the following steps: prefabricating a partition plate:

the prefabrication of the compartment plate body 2 is similar to that of a prefabricated hollow plate, the template is assembled by an I-shaped steel pad, the attached vibrator is installed at the bottom of the template, the ultrahigh-performance concrete is poured after the embedded part is installed, the template is disassembled after the strength is achieved, the compartment plate body 2 is hung to a steam curing area for high-temperature steam curing, and the steam curing can be transported to the site for installation after the steam curing is completed.

Step two: and (3) casting the corbel longitudinal beam in situ:

1. galvanized steel sheet welding frame

(1) Mounting arc welding plates (radius R = 2700; angle = alpha 9 ℃) on the duct piece, wherein the distance between the arc welding plates and the duct piece is 1.5 m, and the welding plates and the duct piece are fixedly connected through bolts;

(2) welding galvanized steel plates (250 multiplied by 250 galvanized steel plates and 200 multiplied by 200 galvanized steel plates) on the welding plates to form a square frame;

(3) mounting longitudinal beam steel bars on a galvanized steel sheet frame;

(4) fixing the longitudinal beam steel bars at the galvanized steel plate frame by adopting spot welding;

2. pouring of concrete

And after the construction of the steel bar net rack is finished, installing a bottom die and a side die, pumping concrete for pouring through special equipment, and removing the template after the strength is reached to enter the next section of construction.

Step three: partition panel mounting

After the intensity of longeron formed, at longeron top installation compartment board, use special platform truck (taking hoisting equipment) to carry into the piping lane tunnel with 1.6 orientation with compartment plate body 2, transport to the construction site, hoist compartment plate body 2, place on the longeron at longeron top horizontal rotation 90, adjustment compartment plate body 2 position aligns with a preceding compartment plate body 2 and closes.

Step four: wet joint 3 construction

After the partition plate body 2 is placed, wet joint 3 construction is carried out section by section, and wet joint 3 is divided into two parts:

1. UHPC joint materials are poured between the partition plate bodies 2 and the inner wall of the shield comprehensive pipe gallery 1, so that the partition plate bodies 2 and the pipe wall form a whole.

2. And a transverse joint between the two compartment plate bodies 2 is poured with UHPC joint material for pouring, so that the upper compartment and the lower compartment are sealed.

The working principle is as follows: according to the ultrahigh strength and the ultrahigh durability of the UHPC, through calculation analysis and process study, a prefabricated rib plate type UHPC plate is recommended, wherein the thickness of a panel is 6 meters, the height of ribs is 24 centimeters, the ribs are arranged in a # -shaped manner, the specific size is determined by the size of a project pipe gallery, the UHPC is special concrete with ultrahigh strength, ultralow water absorption, ultrahigh durability and erosion resistance, the ultrahigh strength and ultrahigh toughness of the ultrahigh-performance concrete are fully exerted by adopting the UHPC rib plate beam 5, the self weight of the structure is reduced by 40-60% through structure optimization design, the construction efficiency is improved and the construction safety risk is greatly reduced in the installation process.

It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, 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.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a concrete utility tunnel partition panel, includes shield structure utility tunnel (1) and partition plate body (2), be provided with partition plate body (2) in shield structure utility tunnel (1), its characterized in that still includes: wet seam (3) and concrete boundary beam (4), wet seam (3) have been pour between compartment plate body (2) and shield structure utility tunnel (1) inner wall, compartment plate body (2) include UHPC rib board roof beam (5) and stand built-in fitting (6), be provided with stand built-in fitting (6) in UHPC rib board roof beam (5), the both ends of compartment plate body (2) all are provided with the spread groove.

2. The concrete utility tunnel partition panel of claim 1, characterized in that: the inner wall symmetry of shield structure utility tunnel (1) is provided with concrete boundary beam (4), the top at concrete boundary beam (4) is installed in compartment plate body (2).

3. The concrete utility tunnel partition panel of claim 1, characterized in that: the inner wall symmetry of shield structure utility tunnel (1) is provided with shaped steel hidden corbel (7), and shaped steel hidden corbel (7) fix in the spread groove on compartment plate body (2).

4. The concrete utility tunnel partition panel of claim 1, characterized in that: the wet joint (3) is poured micro-expansion fine stone concrete.

5. The concrete utility tunnel partition panel of claim 1, characterized in that: the thickness of the panel of the UHPC rib plate beam (5) is 6 meters, the height of the rib is 24 centimeters, and the ribs of the UHPC rib plate beam (5) are arranged in a cross shape.