CN206769927U - A kind of tunnel portal lining cutting full framing plate device - Google Patents

Abstract

The utility model discloses a tunnel door lining full hall support formwork device. There are multiple arches distributed along the axial direction of the tunnel. The steel arches are supported on the inner side of the steel formwork. The steel arches are connected by formwork channel steel. The formwork channel steel is set on the inside of the steel arch. On the outside, there is a steel pipe support between the formwork channel steel and the door opening bracket. The utility model has the advantages of simple structure, convenient installation, dismantling and use; low cost; high working efficiency;

Description

A tunnel door lining full hall support formwork device

technical field

The utility model belongs to the construction field of the lining formwork for the tunnel door of an excavated tunnel, in particular to a formwork device for lining a full hall of the tunnel door, which is suitable for the construction of the lining of the tunnel door of an underground excavation.

Background technique

Because the size of the template structure of the tunnel lining trolley is inconsistent with the size of the tunnel bell-mouth door, such as re-customizing the portal trolley, the price is expensive, the assembly time is long, the utilization rate of the trolley is low, and the location of the tunnel door or terrain factors The operation is inconvenient; in view of this, in order to further improve production efficiency, save costs, facilitate on-site installation and removal by workers, save space occupation, etc., the full hall support door formwork device is formulated.

Utility model content

The purpose of the utility model is to solve the problems existing in the prior art, and provide a tunnel door lining full hall support formwork device, which is low in price, high in work efficiency, easy to install or dismantle, and saves space occupied by the tunnel door.

Above-mentioned purpose of the utility model is realized through the following technical solutions:

A formwork device for the lining of a tunnel portal, including a doorway bracket, formwork channel steel, a steel arch, an arched steel formwork and an arched wooden formwork, the doorway bracket is located in the steel formwork, and the steel arches are multiple And along the axial distribution of the tunnel, the steel arches are supported on the inner side of the steel formwork, and the steel arches are connected by formwork channel steel, the formwork channel steel is set inside the steel arch frame, the wooden formwork is set outside the steel formwork, and the formwork channel steel A steel pipe support is provided between the bracket and the door opening bracket.

The above-mentioned door opening support includes two door opening axial channel steels parallel to the tunnel axis, and several distribution beams are erected between the two door opening axial channel steels. Each distribution beam is distributed along the tunnel axial direction, and the door opening axial grooves The steel is supported on the ground by columns.

As mentioned above, the steel pipe supports include three-way vertically connected horizontal supports, axial supports and vertical supports. The horizontal supports and vertical supports are connected to the formwork channel steel through jacking brackets, and the distribution beam is connected to the bottom end of the vertical support above the distribution beam.

Diagonal bracing steel pipes are arranged between the above-mentioned formwork channel steel and the door opening bracket.

As mentioned above, the wooden formwork and the steel formwork are fixed by tie rods.

Compared with the prior art, the utility model has the following advantages:

1. Simple structure, easy to install, remove and use;

2. Low cost;

3. High work efficiency;

4. Save the occupation of the site at the tunnel door.

Description of drawings

Fig. 1 is the front view of the utility model.

Fig. 2 is a side view of the utility model.

In the figure: 1-steel pipe support; 2-diagonal bracing steel pipe; 3-jack; 4-steel formwork; 5-steel arch; 6-column; Template; 10-I-shaped steel back rib; 11-pair of tie rods; 12-column diagonal brace; 13-formwork channel steel; 14-door opening bracket;

detailed description

The technical scheme of the utility model is further described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1~2,

A tunnel door lining full hall support formwork device, including door opening support 14, and also includes formwork channel steel 13, steel arch frame 5, arched steel formwork 4 and arched wooden formwork 9, the doorway support 14 is located in the steel formwork 4 , there are multiple steel arches 5 distributed along the axial direction of the tunnel, the steel arches 5 are supported on the inside of the steel formwork 4, each steel arch 5 is connected by formwork channel steel 13, and the formwork channel steel 13 is arranged on the steel arch 5 inside, the wooden formwork 9 is arranged on the outside of the steel formwork 4, and a steel pipe support 1 is arranged between the formwork channel steel 13 and the door opening bracket 14.

The doorway support 14 described above includes two doorway axial channel steels 7 parallel to the tunnel axis, and several distribution beams 8 are erected between the two doorway axial channel steels 7, and each distribution beam 8 is distributed along the tunnel axis. , the axial channel steel 7 of the door opening is supported on the ground by the column 6.

As mentioned above, the steel pipe support 1 includes a horizontal support 101, an axial support 102 and a vertical support 103 vertically connected in three directions. The horizontal support 101 and the vertical support 103 are connected to the formwork channel steel 13 through the jacking 3. The bottom end of the vertical support 103 above the 8 is connected.

Diagonal bracing steel pipes 2 are arranged between the above-mentioned formwork channel steel 13 and the door opening bracket 14 .

As mentioned above, the wooden formwork 9 and the steel formwork 4 are fixed by the tie rods 11 .

The tunnel door adopts the utility model for cast-in-place. In order not to affect the construction in the tunnel, a door opening bracket 14 is set in the middle of the tunnel door, and the clearance of the door opening bracket 14 meets the traffic requirements. The form foundation of the doorway support 14 adopts uprights 6, and the uprights 6 can be connected by upright diagonal braces 12 to enhance its overall stability. The top of the uprights 6 is connected with the doorway axial channel steel 7, and the doorway axial channel steel 7 is connected with the distribution beam 8 .

The steel pipe support 1 includes a horizontal support 101, an axial support 102 and a vertical support 103. The ends of the horizontal support 101 and the vertical support 103 are installed with a jacking bracket 3, and the jacking bracket 3 is connected with the formwork channel steel 13, and a steel arch is arranged on the outside of the formwork channel steel 13. Frame 5, steel formwork 4 is arranged on the outside of steel arch frame 5, and steel formwork 4 is arranged on the outside of steel formwork 4. Tunnel door reinforcement cage is arranged on the outside. After the installation of tunnel door reinforcement cage is completed, wooden formwork 9 is installed. , in order to ensure the overall stability of the steel formwork 4 and the wooden formwork 9, the steel formwork 4 and the wooden formwork 9 are fixed by the tie rods 11.

The specific embodiments described herein are only examples to illustrate the spirit of the present invention. Those skilled in the technical field to which the utility model belongs can make various modifications or supplements to the described specific embodiments or adopt similar methods to replace them, but they will not deviate from the spirit of the utility model or go beyond the appended claims defined range.

Claims (5)

1. a kind of tunnel portal lining cutting full framing plate device, including door opening support（14）, it is characterised in that also including template Channel-section steel（13）, steel arch-shelf（5）, arch steel form（4）With the wooden template of arch（9）, door opening support（14）Positioned at steel form （4）It is interior, steel arch-shelf（5）For it is multiple and along tunnel axially be distributed, steel arch-shelf（5）It is supported on steel form（4）Inner side, each steel arch Frame（5）Between pass through template channel-section steel（13）Connection, template channel-section steel（13）It is arranged on steel arch-shelf（5）Inner side, wooden template（9）Set In steel form（4）Outside, template channel-section steel（13）With door opening support（14）Between be provided with steel pipe support（1）.

A kind of 2. tunnel portal lining cutting full framing plate device according to claim 1, it is characterised in that described door Hole support（14）Including two door opening axial direction channel-section steels axially in parallel with tunnel（7）, two door opening axial direction channel-section steels（7）Between set up There are several distribution beams（8）, each distribution beam（8）Axially it is distributed along tunnel, door opening axial direction channel-section steel（7）Pass through column（6）Support On ground.

A kind of 3. tunnel portal lining cutting full framing plate device according to claim 2, it is characterised in that the steel pipe Support（1）Including three-dimensional cross-brace connected vertically（101）, axially support（102）And vertical support（103）, cross-brace （101）And vertical support（103）Pass through jacking（3）With template channel-section steel（13）Connection, distribution beam（8）With positioned at distribution beam（8）On The vertical support of side（103）Bottom connection.

A kind of 4. tunnel portal lining cutting full framing plate device according to claim 1, it is characterised in that described mould Board slot steel（13）With door opening support（14）Between be provided with diagonal brace steel pipe（2）.

A kind of 5. tunnel portal lining cutting full framing plate device according to claim 1, it is characterised in that described wood Matter template（9）And steel form（4）Between by pull bar（11）It is fixed.