Post-anchoring channel group for fixing tunnel

Abstract

The utility model discloses a rear anchoring channel group for tunnel fixation, which comprises two arc-shaped steel frames, a plurality of connecting metal plates are welded between the tops of the two arc-shaped steel frames, the two ends of each connecting metal plate are both provided with limiting holes, the bottoms of the two arc-shaped steel frames are both provided with clamping grooves, and the clamping grooves are connected with the connecting metal plates. A plurality of bolt structures used for being fixed in a rear anchoring channel are arranged in the two clamping grooves, each bolt structure comprises a screw rod, a screw rod head is fixed to the top of each screw rod, the outer surface of each screw rod is sleeved with two screw caps, and the outer surface of each screw rod is further sleeved with a metal gasket located at the tops of the two screw caps. According to the post-anchoring channel group for fixing the tunnel, the contact area with the inner wall of the tunnel is increased through the plurality of connecting metal plates and the arc-shaped steel frame, so that the cohesive force area of concrete is increased, the stability of a post-anchoring channel is ensured, and meanwhile, the stability of an anchor piece and the post-anchoring channel is improved through the cooperation of a clamping groove and a screw head.

Description

Technical Field

[0001] This utility model relates to the field of rear anchoring channel technology, and in particular to a rear anchoring channel assembly for tunnel fixing. Background Technology

[0002] Post-anchoring channels are a connection and fixing technology used in building structures, widely applied in curtain walls, steel structures, bridges, tunnels, and other engineering fields. A post-anchoring channel is an anchoring system installed after the concrete structure has been poured, typically consisting of a channel (T-slot) and matching anchors (such as T-bolts). The channel can be pre-embedded in the concrete or installed later, using bolts or other connectors to fix external components (such as curtain walls, equipment supports, etc.) to the channel.

[0003] Currently, post-anchoring channels used in tunnels mainly rely on the bond force or mechanical interlocking force between the anchor bolts and the concrete. If the concrete strength is insufficient, the anchor bolts are improperly installed, or the channel design is unreasonable, it may lead to insufficient anchoring force, weak structural connection, and affect overall safety. Therefore, a post-anchoring channel assembly for tunnel fixing is proposed to solve the above problems. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a rear anchoring channel assembly for tunnel fixing, which has the advantages of increasing the bonding area between the rear anchoring channel and the tunnel concrete, increasing the stability between the anchor and the rear anchoring channel, and facilitating the installation of various equipment supports by easily changing the distance between the two anchors.

[0005] This utility model provides a rear anchoring channel assembly for tunnel fixing, including two arc-shaped steel frames. Multiple connecting metal plates are welded between the tops of the two arc-shaped steel frames. Limiting holes are opened at both ends of the multiple connecting metal plates. A slot is opened at the bottom of the two arc-shaped steel frames. Multiple bolt structures for fixing in the rear anchoring channel are arranged inside the two slots. The bolt structure includes a screw rod, a screw head is fixed at the top of the screw rod, two nuts are sleeved on the outer surface of the screw rod, and metal washers are also sleeved on the outer surface of the screw rod at the top of the two nuts.

[0006] Preferably, the screw has several turns of thread on its outer surface, and both nuts are threadedly connected to the thread of the screw.

[0007] Preferably, the two corner edges of the card slot are slightly upturned to serve as a limiting element.

[0008] Preferably, the bottom of the screw head has two inverted triangular notches that match the two corner edges of the slot.

[0009] Preferably, the two arc-shaped steel frames are parallel arc-shaped steel strips.

[0010] Compared with the prior art, the above technical scheme of the utility model has the following beneficial technical effects:

[0011] 1、The tunnel fixing rear anchoring channel group increases the contact area with the tunnel inner wall through the multiple connecting metal plates and the arc-shaped steel frames to increase the concrete bonding area, ensures the stability of the rear anchoring channel, and simultaneously increases the stability of the anchoring member and the rear anchoring channel through the cooperation of the clamping groove and the screw head.

[0012] 2、The tunnel fixing rear anchoring channel group can also move the screw head in the clamping groove through the loose nut, has the advantages of facilitating the change of the distance between the two anchoring members and the installation of various equipment supports. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 The utility model provides a kind of structure schematic diagram of tunnel fixing rear anchoring channel group.

[0014] Fig. 2 The utility model provides a kind of structure schematic diagram in tunnel fixing rear anchoring channel group.

[0015] Fig. 3 The utility model provides a kind of structure schematic diagram in tunnel fixing rear anchoring channel group.

[0016] Reference signs: 1, arc-shaped steel frame;2, connecting metal plate;3, clamping groove;4, bolt structure;401, screw;402, nut;403, screw head;404, metal gasket;5, limiting hole. DETAILED DESCRIPTION

[0017] To make the purpose, technical scheme and advantage of the utility model more clear and explicit, the utility model is further detailed below in combination with specific implementation manner and with reference to drawings.It should be understood that these descriptions are only exemplary, and not to limit the scope of the utility model.In addition, in the following description, the description of well-known structure and technology is omitted to avoid unnecessary confusion of the concept of the utility model.

[0018] In the description of the utility model, it should be explained that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" 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 limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0019] In the description of the utility model, it should be explained that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection, welding, riveting, bonding and the like, or detachable connection, threaded connection, key connection, pin connection and the like, or integrally connected; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; 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 according to the specific circumstances.

[0020] As Figs. 1-3 shown, the utility model provides a kind of rear anchorage channel group for tunnel fixing, including two arc steel frames 1, the main load-bearing steel frame of rear anchorage channel, multiple connecting metal plates 2 are welded between the top of two arc steel frames 1, multiple connecting metal plates 2 are used to increase and install more stable between the contact surface between tunnel concrete, limit hole 5 is set in both ends of multiple connecting metal plates 2, and fixed bolt insertion hole is carried out with tunnel concrete, clamping groove 3 is set in the bottom of two arc steel frames 1, T-shaped slot for installing anchor, multiple bolt structures 4 for being fixed in rear anchorage channel are arranged in the inside of two clamping grooves 3, and bolt structure 4 includes screw rod 401, the main rod body of anchor, screw rod head 403 is fixed in the top of screw rod 401, fixed piece is matched with clamping groove 3, two nuts 402 are sleeved on the outer surface of screw rod 401, and metal gasket 404 is also sleeved on the top of two nuts 402 on the outer surface of screw rod 401.

[0021] It should be noted that the equipment support is fixed between the two nuts 402.

[0022] In an optional embodiment, the outer surface of the screw rod 401 is provided with a plurality of threads to increase the stability of the nut 402, and the two nuts 402 are threadedly connected with the threads of the screw rod 401.

[0023] In an optional embodiment, the two corner edges of the clamping groove 3 are slightly raised upward to serve as a limiting function.

[0024] In an alternative embodiment, the bottom of the screw head 403 is provided with two inverted triangular notches to fit the two corner edges of the clamping groove 3.

[0025] It should be noted that the screw head 403 can be inserted into the interior of the arc-shaped steel frame 1 from the bottom of the clamping groove 3, and by rotating 90°, the two inverted triangular notches of the screw head 403 can be clamped in the two corner edges of the clamping groove 3 for limiting.

[0026] In an alternative embodiment, the two arc-shaped steel frames 1 are arc-shaped steel strips arranged in parallel.

[0027] Working principle: when the rear anchoring channel needs to be fixed on the inner wall of the tunnel for fixation, a plurality of connecting metal plates 2 and two arc-shaped steel frames 1 can be welded and fixed first, then the connecting metal plates 2 and the inner wall of the top of the tunnel are fixed through the limiting holes 5 by means of bolts, after being fixed, the screw heads 403 of a plurality of screws 401 are inserted into the clamping grooves 3 in the arc-shaped steel frames 1, after rotating 90°, the two inverted triangular notches of the screw head 403 are clamped in the clamping groove 3, finally, the metal gasket 404 and the nut 402 are used to process the screw head 403 and the clamping groove 3 on the arc-shaped steel frame 1, so as to achieve the effect of installing the entire rear anchoring channel.

[0028] It should be understood that the above specific embodiments of the present application are only used for illustrative or explanatory purposes of the principles of the present application, and do not constitute a limitation on the present application. Therefore, any modification, equivalent replacement, improvement, etc. made without departing from the spirit and scope of the present application shall be included in the protection scope of the present application. In addition, the appended claims of the present application are intended to cover all changes and modifications falling within the scope and boundary of the appended claims, or the equivalent forms of such scope and boundary.

Claims

1. A set of post-anchoring channels for tunnel fixing, comprising two arc-shaped steel frames (1), characterized in that, The top of two arc-shaped steel frames (1) is welded with multiple connecting metal plates (2), both ends of multiple connecting metal plates (2) are provided with limiting holes (5), the bottom of two arc-shaped steel frames (1) is provided with clamping grooves (3), the inside of two clamping grooves (3) is provided with multiple bolt structures (4) for fixing in the rear anchoring channel, the bolt structure (4) comprises a screw rod (401), the top of the screw rod (401) is fixed with a screw rod head (403), the outer surface of the screw rod (401) is sleeved with two nuts (402), and the outer surface of the screw rod (401) is further sleeved with a metal gasket (404) located at the top of two nuts (402).

2. A post-anchoring channel set for tunnel fixation according to claim 1, characterized in that: The outer surface of the screw rod (401) is provided with several turns of thread lines, and two nuts (402) are in threaded connection with the thread lines of the screw rod (401).

3. A post-anchoring channel set for tunnel fixation according to claim 1, characterized in that: The two corner edges of the clamping groove (3) are slightly upwarping to play a limiting role.

4. A post-anchoring channel set for tunnel fixation according to claim 1, characterized in that: The bottom of the screw rod head (403) is provided with two inverted triangular notches matched with the two corner edges of the clamping groove (3).

5. A post-anchoring channel set for tunnel fixation according to claim 1, characterized in that: Two arc-shaped steel frames (1) are parallel arc-shaped steel strips.

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