CN217354480U - Assembled flood gate for excavation of shield tunnel contact channel of water-rich stratum - Google Patents
Assembled flood gate for excavation of shield tunnel contact channel of water-rich stratum Download PDFInfo
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- CN217354480U CN217354480U CN202221035277.4U CN202221035277U CN217354480U CN 217354480 U CN217354480 U CN 217354480U CN 202221035277 U CN202221035277 U CN 202221035277U CN 217354480 U CN217354480 U CN 217354480U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
一种用于富水地层盾构隧道联络通道开挖的装配式防淹门，涉及富水地层盾构隧道联络通道开挖时防止涌水涌砂险情的装置。它包括门板、横门框和竖门框，其关键技术是门板和横门框、竖门框的所有接触面开设螺栓孔，两横门框分别位于上、下方位置，两竖门框分别位于两侧位置，横门框和竖门框之间连接组成门框总成；在门板、横门框、竖门框之间的接触面均设置密封垫片。本实用新型具有的有益效果是：防淹门的门板、横门框、竖门框等所有接触面均采用螺栓连接，组装、使用快捷，可在富水地层盾构隧道联络通道开挖发生涌水涌砂险情时，快速、高效地封闭联络通道开挖断面。
The utility model relates to an assembled anti-flooding door used for excavation of a connection passage of a shield tunnel in a water-rich stratum, and relates to a device for preventing the danger of water and sand gushing during the excavation of the connection passage of a shield tunnel in a water-rich stratum. It includes a door panel, a horizontal door frame and a vertical door frame. The key technology is that bolt holes are provided on all the contact surfaces of the door panel, the horizontal door frame and the vertical door frame. The two horizontal door frames are located at the upper and lower positions, respectively. It is connected with the vertical door frame to form a door frame assembly; sealing gaskets are arranged on the contact surfaces between the door panel, the horizontal door frame and the vertical door frame. The utility model has the beneficial effects as follows: all the contact surfaces of the anti-flood door, such as the door panel, the horizontal door frame, the vertical door frame, etc., are connected by bolts, which is quick to assemble and use, and can cause water and sand gushing during the excavation of the connection channel of the shield tunnel in the water-rich stratum. In case of danger, quickly and efficiently close the excavation section of the communication channel.
Description
Technical Field
An assembled flood gate for excavation of a water-rich stratum shield tunnel contact channel relates to a device for preventing water burst and sand burst dangerous situations during excavation of the water-rich stratum shield tunnel contact channel.
Background
When a shield tunnel connecting channel of a water-rich stratum is excavated, the water gushing and sand gushing are easy to happen in the excavation process due to the large water content of the stratum; if the excavation section of the contact channel cannot be closed timely and tightly, the gushing water and sand enter the shield tunnel, so that serious tunnel water permeation accidents can be caused, and the life and property safety of construction personnel is threatened seriously.
The common method for excavating the cross section of the closed communication channel comprises two methods: a flood prevention sand bag filling and grouting sealing method and a combined flood prevention door sealing method. The flood prevention sand bag filling and grouting sealing method is characterized in that when water and sand gushing dangerous situations occur, flood prevention sand bag walls are manually stacked on the excavation section of the communication channel, and then double-liquid grout (AC grout) is injected into the back of the flood prevention sand bag walls to prevent water and sand from entering a shield tunnel, so that the excavation section of the communication channel is sealed. The combined flood gate closing method has the following defects that need to be improved: 1) the door frame assembly of the flood-proof door is connected with the door frame by hinges, so that the gap is large and the sealing effect is poor; 2) a hinge switch is adopted between the door frame assembly and the door frame, the operation space required by opening and closing the door frame is large, and the sealing of the excavation section of the connecting channel cannot be quickly realized under the condition of narrow operation space; 3) the combined flood-proof door frame assembly and the door frame are integrated, the combined flood-proof door with one size can only be applied to pipe pieces with specific sizes, and in addition, the combined flood-proof door is heavy and inconvenient to assemble and disassemble.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the problem that solves is exactly to above not enough and provide one kind and take place to gush water when gushing sand dangerous situation at water-rich stratum shield tunnel contact passageway excavation, can seal the sectional anti-flooding door of contact passageway excavation fast, high-efficiently. The technical scheme is as follows:
the key technology is that bolt holes are arranged on all contact surfaces of the door plate, the transverse door frame and the vertical door frame, the two transverse door frames are respectively positioned at the upper and lower positions, the two vertical door frames are respectively positioned at the two sides, and the transverse door frame and the vertical door frames are connected to form a door frame assembly; sealing gaskets are arranged on the contact surfaces among the door plate, the transverse door frame and the vertical door frame.
The transverse door frame is connected by two opposite transverse plates and two opposite vertical plates to form a plate-frame structure.
The vertical door frame is of a frame structure formed by connecting two opposite straight rods, arc-shaped rods and two opposite short vertical rods.
And a reinforcing rib is arranged between the straight rod and the arc-shaped rod.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. all contact surfaces of a door plate, a transverse door frame, a vertical door frame and the like of the flood-proof door are connected by bolts, so that the assembly and the use are rapid, and the excavation section of the contact passage can be rapidly and efficiently sealed when the water burst and sand gushing dangerous situation occurs in the excavation of the contact passage of the shield tunnel in the water-rich stratum.
2. Sealing rubber gaskets are arranged on all contact surfaces of a door plate, a transverse door frame, a vertical door frame and the like of the flood-proof door, and the waterproof sealing effect is good.
3. Adopt bolted connection between door frame assembly and the door frame, no hinge mechanism, the required operation space of switching of door frame is less, under the narrow and small condition in operation space, can realize fast that gushing water when the rich water stratum shield tunnel contacts the passageway excavation seals the cross section of interconnection passageway excavation, high efficiency deals with rich water stratum shield tunnel.
4. The flood-proof door is formed by assembling independent parts such as a door plate, a transverse door frame, a vertical door frame and the like on site, and the single part is light in weight and convenient to disassemble and assemble; a single part is simple in structure, and can be transformed on site according to construction requirements so as to adapt to duct pieces of different sizes.
Drawings
FIG. 1 is a bottom perspective view of the present invention;
FIG. 2 is a top perspective view of the present invention;
fig. 3 is an isometric view of the transverse doorframe of the present invention;
fig. 4 is a top view of the door panel of the present invention;
fig. 5 is an axonometric view of the door frame assembly of the present invention;
FIG. 6 is an isometric view of the vertical doorframe of the present invention;
fig. 7 is a usage state diagram of the present invention.
Detailed Description
As shown in fig. 1-6, an assembled flood gate for excavation of a water-rich stratum shield tunnel connecting channel comprises a door plate 1, transverse door frames 2 and vertical door frames 3, and is characterized in that bolt holes 5 are formed in all contact surfaces of the door plate 1, the transverse door frames 2 and the vertical door frames 3, the two transverse door frames 2 are respectively located at the upper position and the lower position, the two vertical door frames 3 are respectively located at the two sides, and the transverse door frames 2 and the vertical door frames 3 are connected through the bolt holes 5 by bolts to form a door frame assembly; sealing rubber gaskets 4 are arranged on contact surfaces among the door panels 1, the transverse door frames 2, the vertical door frames 3 and the shield tunnel segment 7.
The transverse door frame 2 is formed by connecting two opposite transverse plates 2.1 and two opposite vertical plates 2.2 to form a plate-frame structure.
The vertical door frame 3 is formed by connecting two opposite straight rods 3.1, arc-shaped rods 3.2 and two opposite short vertical rods 3.3 to form a frame type structure.
And a reinforcing rib 6 is arranged between the straight rod 3.1 and the arc-shaped rod 3.2.
The door plate 1, the transverse door frame 2 and the vertical door frame 3 are all connected through bolts.
The positions of bolt holes 5 on the contact surfaces of the door panel 1, the transverse door frame 2 and the vertical door frame 3 are matched with each other.
The size of door plant 1 and the size phase-match of the door frame assembly that horizontal door frame 2, vertical door frame 3 constitute, the size of door frame assembly and the excavation section size phase-match of contact passageway.
When a tunnel is excavated, as shown in fig. 7, a door frame assembly consisting of a transverse door frame 2 and a vertical door frame 3 is tightly fixed on a duct piece 7 at the excavation position of a connecting channel of the shield tunnel through an external expansion bolt; when the communication channel generates water and sand gushing, a sealing rubber gasket 4 is arranged on the contact surface between the door plate 1 and the door frame assembly, the door plate 1 is fixed on the door frame assembly through the bolt holes 5 by adopting bolt connection, the sealing of the excavation section of the communication channel is realized, and the purposes of waterproof sealing and high-efficiency disposal of the water and sand gushing dangerous situation are achieved.
The above description is the best technical solution of the present invention, and is not a limitation of the present invention; without departing from the technical solution of the present invention, those skilled in the art may modify some technical features of the present invention according to the technical solution disclosed above, and all such modifications fall within the scope of the claims of the present invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221035277.4U CN217354480U (en) | 2022-04-30 | 2022-04-30 | Assembled flood gate for excavation of shield tunnel contact channel of water-rich stratum |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221035277.4U CN217354480U (en) | 2022-04-30 | 2022-04-30 | Assembled flood gate for excavation of shield tunnel contact channel of water-rich stratum |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217354480U true CN217354480U (en) | 2022-09-02 |
Family
ID=83010956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221035277.4U Active CN217354480U (en) | 2022-04-30 | 2022-04-30 | Assembled flood gate for excavation of shield tunnel contact channel of water-rich stratum |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217354480U (en) |
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2022
- 2022-04-30 CN CN202221035277.4U patent/CN217354480U/en active Active
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