Quick insertion structure of open cut tunnel cover plate
By designing a quick-insert structure with a reversible cover and quick-insert plug-in, the problem of rapid sealing of the open hole cover in the event of water and sand gushing is solved, ensuring construction safety and operational efficiency. The quick sealing and unsealing of the cover is achieved by using quick sockets and concrete anchoring.
Patent Information
- Application Number
- CN202423282454.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2034-12-30
AI Technical Summary
The existing open hole cover is difficult to quickly seal in the event of sand and water gushing, posing a safety hazard, and bolting is time-consuming and labor-intensive.
A quick-insert structure for open hole cover plates was designed, which uses a reversible cover plate and quick-insert plugs. The quick sockets are anchored to the concrete, and the quick-insert plugs contact the hole wall to press the cover plate, thus achieving rapid sealing.
The cover plate is quickly sealed to avoid water and sand gushing out, which improves construction safety and operational efficiency. The circumferential spacing of multiple quick-insert structures enhances stability.
Smart Images
Figure CN223459379U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of open cut tunnel receiving, and particularly relates to a quick plug structure of open cut tunnel cover plate. BACKGROUND
[0002] Open cut tunnel receiving refers to, in shield tunnel construction, when a shield machine is excavated to a predetermined position, receiving the shield machine through a pre-constructed open cut tunnel structure. In the open cut tunnel receiving process, the open cut tunnel portal needs to be opened, and the concrete in the open cut tunnel needs to be removed, so that when the shield machine is about to reach the portal, the staff can more conveniently observe and adjust the attitude of the shield machine through the portal.
[0003] Influenced by surrounding geological conditions, construction technology and other factors, sand and water will gush out of the opened portal during the process of removing the concrete in the open cut tunnel, which not only affects the subsequent construction, but also has a great safety hazard. To solve this problem, the concrete cover plate of the open cut tunnel portal is replaced with an openable steel cover plate in the prior art. When sand and water gush out of the open cut tunnel, the steel cover plate is closed to block the portal, and the steel cover plate is fixedly connected with the concrete below by using bolts to ensure the blocking effect. However, the number of bolts is large, and it is time-consuming and laborious to install them, so that the portal cannot be quickly blocked, and there is still a certain safety hazard.
[0004] Therefore, there is an urgent need for a quick plug structure of an open cut tunnel cover plate to solve the above problems. UTILITY MODEL CONTENTS
[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a quick plug structure of an open cut tunnel cover plate, so that the cover plate can quickly block the portal of the open cut tunnel, which not only facilitates operation, but also effectively prevents water and sand from gushing out of the open cut tunnel, and ensures the safety of construction during the open cut tunnel receiving process.
[0006] To achieve this purpose, the utility model adopts the following technical solutions:
[0007] A quick plug structure of an open cut tunnel cover plate is provided, a reversible cover plate is arranged at the portal of the open cut tunnel, a plurality of quick plug structures of the open cut tunnel cover plate are arranged at the cover plate in a circumferential direction, and the quick plug structure of the open cut tunnel cover plate comprises:
[0008] A quick socket can be anchored in the concrete below the cover plate, and a quick plug hole is arranged on the quick socket;
[0009] The quick plug has a blocking position for plugging the quick plug hole and a construction position for separating from the quick plug hole, in the blocking position, the quick plug contacts with the hole wall of the quick plug hole and partially extends from the quick plug hole, the part of the quick plug extending from the quick plug hole can contact with the cover plate and press the cover plate to the concrete below the cover plate, and the cover plate can block the hole; in the construction position, the cover plate can be turned over to unblock the hole.
[0010] Optionally, the quick socket comprises an anchor and a top plate, one end of the anchor is connected with the top plate, and the other end can be anchored in the concrete below the cover plate, the quick plug hole is formed by the anchor, the top plate and the concrete, and the quick plug abuts against the top plate after being inserted into the quick plug hole.
[0011] Optionally, the anchor comprises a plurality of anchor rods, and the plurality of anchor rods are arranged at intervals along the circumference of the top plate.
[0012] Optionally, the anchor rod comprises a screw rod part, and the screw rod part is embedded in the concrete.
[0013] Optionally, the anchor rod is made of screw steel.
[0014] Optionally, the quick socket further comprises a backing plate installed above the concrete, and the anchor passes through the backing plate and is anchored in the concrete below the cover plate.
[0015] Optionally, the quick plug comprises two separable plug blocks, when the cover plate is switched from the construction position to the blocking position, the two plug blocks can be inserted into the quick plug hole, in the blocking position, the two plug blocks are stacked up and down in the quick plug hole and abut against the hole wall of the quick plug hole, and the lower plug block partially extends from the quick plug hole and is pressed against the cover plate.
[0016] Optionally, the quick plug comprises two separable plug blocks, when the cover plate is switched from the construction position to the blocking position, the two plug blocks can be inserted into the quick plug hole, in the blocking position, the two plug blocks are stacked up and down in the quick plug hole and abut against the hole wall of the quick plug hole, and the lower plug block partially extends from the quick plug hole and is pressed against the cover plate.
[0017] Optionally, the plug block is a wedge-shaped block.
[0018] Optionally, the quick plug is made of steel.
[0019] Compared with the prior art, the quick plug has the advantages that:
[0020] The utility model provides a kind of fast plug structure of open cut tunnel cover plate, when water and sand gushing site occurs in open cut tunnel, turn over cover plate and insert fast plug into fast plug hole, the part of fast plug that extends relative to fast plug hole can be pressed tightly cover plate below concrete, so that cover rice can be quickly blocked tunnel gate, avoid water and sand from open cut tunnel, ensure the safety of construction in open cut tunnel receiving process;Moreover, fast plug and the hole wall contact of fast plug hole, so that fast plug can be stably inserted in fast plug hole, cannot move, avoid water and sand from open cut tunnel, ensure the safety of construction in open cut tunnel receiving process. When tunnel gate needs to be opened, fast plug can be taken out from fast plug hole, it is convenient and fast to operate, improve the efficiency of cover plate opening and closing.In addition, multiple fast plug structures are arranged along the circumferential direction of cover plate, so that cover plate can be pressed tightly below concrete along its circumferential direction when blocking position, to ensure the stability of cover plate when blocking position. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 The fast plug structure of open cut tunnel cover plate and the plan layout of cover plate provided for the embodiment are provided;
[0022] Figure 2 The fast plug structure of open cut tunnel cover plate and the plan layout of cover plate provided for the embodiment are provided;
[0023] Figure 3 The schematic diagram of fast plug seat of the fast plug structure of open cut tunnel cover plate provided for the embodiment is provided;
[0024] Figure 4 The schematic diagram of fast plug of the fast plug structure of open cut tunnel cover plate provided for the embodiment is provided.
[0025] Wherein:
[0026] 100, fast plug structure;200, cover plate;300, concrete;
[0027] 1, fast plug seat;11, fast plug hole;12, anchor rod;13, top plate;14, pad plate;
[0028] 2, fast plug;21, plug-in block;211, plug-in inclined surface;
[0029] 3, fastener. DETAILED DESCRIPTION
[0030] It should be understood that, in the description of the utility model, the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0031] It should be noted that, in the description of the utility model, unless otherwise explicitly specified and limited, the terms "set", "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.
[0032] The technical solutions of the utility model will be further illustrated below by combining the drawings and through specific embodiments.
[0033] As shown in the drawings, Figures 1 to 4 The embodiment provides a quick plug structure 100 of an open cut cover plate, so that the cover plate 200 can quickly block the portal of the open cut, which is not only convenient to operate, but also can effectively prevent water and sand from flowing out of the open cut, and ensures the safety of construction during the open cut receiving process.
[0034] Referring to Figure 1 and Figure 2 , the portal of the open cut is provided with a reversible cover plate 200, a plurality of quick plug structures 100 of the open cut cover plate are arranged at intervals along the circumference of the cover plate 200, the quick plug structure 100 of the open cut cover plate comprises a quick plug seat 1 and a quick plug 2, the quick plug seat 1 can be anchored in the concrete 300 below the cover plate 200, and the quick plug seat 1 is provided with a quick plug hole 11; the quick plug 2 has a blocking position of inserting into the quick plug hole 11 and a construction position of being separated from the quick plug hole 11, in the blocking position, the quick plug 2 is in contact with the hole wall of the quick plug hole 11, and part of the quick plug 2 protrudes from the quick plug hole 11, the part of the quick plug 2 protruding from the quick plug hole 11 can be in contact with the cover plate 200 and press the cover plate 200 against the concrete 300 below the cover plate 200, and the cover plate 200 can block the portal; in the construction position, the cover plate 200 can be turned over to unblock the portal.
[0035] The quick plug structure 100 of the open cut cover provided in the embodiment can press the cover 200 against the concrete 300 below when water and sand in the open cut gushes, so that the cover can quickly seal the portal to avoid water and sand from gushing out of the open cut, and ensure the safety of construction during the receiving process of the open cut. Moreover, the quick plug 2 is in contact with the hole wall of the quick plug hole 11, so that the quick plug 2 can be stably inserted into the quick plug hole 11 and cannot move, avoiding water and sand from gushing out of the open cut, and ensuring the safety of construction during the receiving process of the open cut. When the portal needs to be opened, the quick plug 2 can be taken out of the quick plug hole 11, which is convenient and fast, and improves the efficiency of opening and closing the cover 200. In addition, a plurality of quick plug structures 100 are arranged along the circumference of the cover 200, so that the cover 200 can be pressed against the concrete 300 below along the circumference when sealing the position, to ensure the stability of the cover 200 when sealing the position.
[0036] Optionally, referring to Figure 1 and Figure 2 , the quick socket 1 comprises an anchor and a top plate 13, one end of the anchor is connected with the top plate 13, and the other end can be anchored in the concrete 300 below the cover 200. The quick plug hole 11 is formed by the anchor, the top plate 13 and the concrete 300. When the quick plug 2 is inserted into the quick plug hole 11, the quick plug 2 is in abutment with the top plate 13. When water and sand in the open cut gushes, the water and sand in the open cut has an upward water pressure on the cover 200. The water pressure acts on the top plate 13 through the quick plug 2, so that the quick plug 2 is in abutment with the top plate 13, and the water pressure borne by the top plate 13 can be transmitted to the concrete 300 through the anchor, to ensure the stability of the installation of the quick socket 1. The anchor is anchored in the concrete 300, which can provide a certain anti-pulling force, to ensure that the cover 200 and the quick socket 1 can bear a large water pressure.
[0037] Exemplarily, the top plate 13 is made of steel material, which has large strength and is not easy to deform. Specifically, the top plate 13 adopts a steel plate with a thickness of 50 mm, a length of 250 mm and a width of 100 mm.
[0038] In the embodiment, referring to Figure 2 , the anchor comprises a plurality of anchor rods 12, which are arranged along the circumference of the top plate 13 to ensure the uniformity of force bearing and force transmission of the top plate 13, and prevent the top plate 13 from being damaged.
[0039] Exemplarily, referring to Figure 2 , two anchor rods 12 are arranged symmetrically along the width direction of the top plate 13, and the anchor rods 12 are welded with the top plate 13.
[0040] Further, the anchor rod 12 comprises a screw rod part which is embedded in the concrete 300. The screw thread can increase the bonding force between the anchor rod 12 and the concrete 300, so that the force on the anchor rod 12 can be effectively transmitted to the concrete 300, ensuring the fastness of the installation of the fast plug 1 in the concrete 300.
[0041] Illustratively, the anchor rod 12 adopts a threaded steel. Specifically, the anchor rod 12 adopts a HRB400 grade threaded steel with a diameter of 25 mm and a length of 820 mm, and the distance from the bottom of the top plate 13 to the concrete 300 is 120 mm.
[0042] Further, referring to Figure 2 and Figure 3 , the fast plug 1 further comprises a backing plate 14 which is installed above the concrete 300, and the anchor rod 12 passes through the backing plate 14 and is anchored in the concrete 300 below the cover plate 200, so as to increase the contact area between the anchor rod 12 and the concrete 300, so that the pressure can be uniformly distributed between the concrete 300 and the anchor rod 12, preventing the concrete 300 from being damaged.
[0043] Illustratively, the backing plate 14 adopts a steel plate, and the thickness of the backing plate 14 is 40 mm.
[0044] Optionally, referring to Figure 2 and Figure 4 , the fast plug 2 comprises two separable plug blocks 21, and when the cover plate 200 is switched from the construction position to the sealing position, the two plug blocks 21 can be inserted into the fast plug hole 11, and in the sealing position, the two plug blocks 21 are stacked up and down in the fast plug hole 11, and each abuts against the hole wall of the fast plug hole 11, and the lower plug block 21 partially extends out of the fast plug hole 11 and is pressed against the cover plate 200. By arranging the fast plug 2 as two separable plug blocks 21, the fast plug 2 can be quickly inserted into the fast plug hole 11, improving the rate of sealing the door opening by the cover plate 200; and moreover, the two plug blocks 21 can form a stable locking structure in the fast plug hole 11, effectively preventing the cover plate 200 from being pushed open under the action of water pressure.
[0045] Illustratively, the fast plug 2 is made of steel.
[0046] In this embodiment, referring to Figure 2 and Figure 4When the cover plate 200 is switched from the construction position to the sealing position, the two plug-in blocks 21 move along the corresponding plug-in inclined surfaces 211, and the plug-in inclined surfaces 211 of the two plug-in blocks 21 abut each other in the sealing position. The two plug-in blocks 21 can move along the corresponding plug-in inclined surfaces 211 when being inserted into the fast plug hole 11, so that the two plug-in blocks 21 can be quickly inserted into the fast plug hole 11, and after being inserted into the fast plug hole 11, the positions and angles of the two plug-in blocks 21 can be adjusted according to actual conditions, so as to ensure that the plug-in blocks 21 can be tightly attached to the hole wall of the fast plug hole 11, and the best locking effect is achieved.
[0047] Exemplarily, the plug-in block 21 is a wedge-shaped block.
[0048] Further, when the cover plate 200 needs to be in the sealing position for a long time, in order to ensure the sealing firmness of the cover plate 200, a plurality of fasteners 3 can be arranged along the circumference of the cover plate 200 at intervals, and after the fast plug 2 is inserted into the fast plug hole 11, the fastener 3 is passed through the cover plate 200 and fastened to the concrete 300 below the cover plate 200.
[0049] Exemplarily, the fastener 3 is a bolt.
[0050] The use method of the fast plug structure 100 of the open cut cover plate provided by the embodiment is as follows: the fast plug seat 1 is pre-buried in the concrete 300 below the cover plate 200, in the open cut receiving process, when the hole door appears water leakage, the cover plate 200 is turned over, so that the cover plate 200 is switched from the construction position to the sealing position, and the two plug-in blocks 21 are quickly inserted into the fast plug hole 11, so as to fix the cover plate 200 in the sealing position.
[0051] The above merely describes the specific embodiments of the utility model, but the protection scope of the utility model is not limited to this, and the person skilled in the art should understand that any change or replacement within the technical range disclosed by the utility model can be easily thought by any person skilled in the art in this technical field, and all fall within the protection scope and disclosure range of the utility model.
Claims
1. A quick plug structure of a deck of a cut-and-cover tunnel, a deck (200) that can be turned over is provided at a portal of the cut-and-cover tunnel, characterized in that, A plurality of quick plug structures (100) of the open cut cover plate are arranged along the circumference of the cover plate (200), and the quick plug structure (100) of the open cut cover plate comprises: A quick plug seat (1) capable of being anchored in the concrete (300) below the cover plate (200), wherein a quick plug hole (11) is arranged on the quick plug seat (1); A quick plug piece (2) having a plugging position for being inserted into the quick plug hole (11) and a construction position for being separated from the quick plug hole (11), wherein, in the plugging position, the quick plug piece (2) is in contact with the hole wall of the quick plug hole (11) and partially protrudes from the quick plug hole (11), the part of the quick plug piece (2) protruding from the quick plug hole (11) is capable of being in contact with the cover plate (200) and pressing the cover plate (200) against the concrete (300) below the cover plate (200), and the cover plate (200) is capable of plugging the portal; in the construction position, the cover plate (200) can be flipped to unplug the portal.
2. The quick plug structure of the deck of the underpass according to claim 1, wherein, The quick plug seat (1) comprises an anchor and a top plate (13), one end of the anchor is connected with the top plate (13), and the other end is capable of being anchored in the concrete (300) below the cover plate (200), the quick plug hole (11) is formed by the anchor, the top plate (13) and the concrete (300), and the quick plug piece (2) is in abutment with the top plate (13) after being inserted into the quick plug hole (11).
3. The quick plug structure of the deck of the underpass according to claim 2, wherein, The anchor comprises a plurality of anchor rods (12), and the plurality of anchor rods (12) are arranged along the circumference of the top plate (13).
4. The quick plug structure of the deck of the underpass according to claim 3, wherein The anchor rod (12) comprises a screw rod part, and the screw rod part is embedded in the concrete (300).
5. The quick plug structure of the deck of the underpass according to claim 4, wherein The anchor rod (12) is made of threaded steel.
6. The quick plug structure of the deck of the underpass according to claim 2, wherein The quick plug seat (1) further comprises a backing plate (14) mounted above the concrete (300), and the anchor passes through the backing plate (14) and is anchored in the concrete (300) below the cover plate (200).
7. The quick plug structure of the deck of the underpass according to claim 1, wherein The quick plug piece (2) comprises two separable counter-plug blocks (21), the two counter-plug blocks (21) can be inserted into the quick plug hole (11) when the cover plate (200) is switched from the construction position to the plugging position, and the two counter-plug blocks (21) are stacked up and down in the quick plug hole (11) and are in abutment with the hole wall of the quick plug hole (11) in the plugging position, the lower counter-plug block (21) partially protrudes from the quick plug hole (11) and is pressed against the cover plate (200).
8. The quick plug structure of the deck of the underpass according to claim 7, wherein, A counter-plug inclined surface (211) is arranged on the counter-plug block (21), the two counter-plug blocks (21) move along the corresponding counter-plug inclined surfaces (211) when the cover plate (200) is switched from the construction position to the plugging position, and the counter-plug inclined surfaces (211) of the two counter-plug blocks (21) are in abutment with each other in the plugging position.
9. The quick plug structure of the deck of the underpass according to claim 8, wherein, The counter-plug block (21) is a wedge-shaped block.
10. The quick plug structure of the deck of the underpass according to any one of claims 1 to 9, wherein The quick plug piece (2) is made of steel.