Device for delaying sinking of tunnel vault

Abstract

The utility model discloses a device for delaying sinking of a tunnel vault. The device mainly comprises a plurality of anchor rods, a plurality of hook ribs, connecting pieces and connecting rods. The anchor rod is arranged in the tunnel vault, and the tail end of the anchor rod is exposed; the two ends of the hook ribs are connected with the different anchor rods respectively and arranged in a crossed mode. The connecting pieces are arranged on the cross points of the hook ribs and used for connecting and fixing the crossed hook ribs; and the two ends of the connecting rod are fixed on the connected anchor rods. Through the structural design, the anchor rods, the hook ribs, the connecting pieces and the connecting rods jointly form a structural shape which is locally of a triangular structure and integrally of a net shape, and the stability of the tunnel vault is effectively enhanced. After concrete is sprayed to the vault, the device and the concrete jointly form a firm tunnel vault supporting system, sinking of the tunnel vault can be obviously delayed, and the overall safety and stability of a tunnel are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of building construction especially relates to a device for delaying tunnel vault subsidence. BACKGROUND

[0002] In the tunnel construction process, the stability of the tunnel vault is a key factor to ensure the overall safety of the tunnel. However, due to geological conditions, construction methods and various factors in the tunnel use process, the tunnel vault often faces the risk of subsidence. The traditional tunnel vault support method often cannot effectively resist the subsidence of the vault, especially in the case of complex geological conditions or large tunnel span, the problem of vault subsidence is more prominent.

[0003] Tunnel subsidence not only affects the normal use of the tunnel, but also may pose a serious threat to driving safety. In severe cases, the subsidence of the tunnel vault may cause damage to the arch structure, and then major repair measures such as arch replacement need to be taken. This not only increases the engineering cost, but also prolongs the construction period, causing great inconvenience to traffic operation.

[0004] Therefore, an effective device for delaying tunnel vault subsidence is needed to improve the stability and safety of the tunnel, reduce maintenance costs and construction difficulty. SUMMARY

[0005] The utility model aims at providing a device for delaying tunnel vault subsidence to effectively delay the subsidence of the tunnel vault, improve the stability and safety of the tunnel, and reduce maintenance costs and construction difficulty.

[0006] To achieve the above-mentioned purpose, the utility model adopts the technical scheme of providing a device for delaying tunnel vault subsidence, which comprises:

[0007] A plurality of anchor rods, the anchor rods are arranged in the tunnel vault, and the ends of the anchor rods are exposed;

[0008] A plurality of hook rods, the two ends of the hook rods are respectively connected to different anchor rods, and the hook rods are arranged in cross;

[0009] A connecting piece, the connecting piece is arranged on the intersection of the hook rods, and the connecting piece is used to connect and fix the intersecting hook rods;

[0010] A connecting rod, the two ends of the connecting rod are fixed to the connected anchor rods.

[0011] In one embodiment, the anchor rod is a hollow grouting structure.

[0012] In one embodiment, the connecting piece is a bolt.

[0013] In one embodiment, the connecting rod is a ribbed steel bar.

[0014] In one embodiment, the hooking rib comprises straight sections and hook ends arranged at both ends of the straight sections, the hook ends are in the shape of a circular arc, and the radius of the circular arc of the hook ends is the same as the radius of the anchor rod.

[0015] In one embodiment, the anchor rods are densely arranged in the area where the tunnel vault sinks fast.

[0016] The one or more technical solutions in the above embodiments of the utility model have at least the following technical effects or advantages:

[0017] The device for delaying the sinking of a tunnel vault provided by the embodiments of the utility model can effectively disperse and bear the pressure on the vault, significantly enhances the stability of the tunnel vault, and effectively resists the sinking of the tunnel vault by forming a firm net structure. Even in the case of complex geological conditions or a large tunnel span, the stability of the vault can be maintained, and the occurrence of problems such as intrusion and vault replacement caused by sinking can be reduced. Since the device can effectively delay the sinking of the tunnel vault, the repair and replacement costs caused by sinking are reduced.

[0018] In summary, the device for delaying the sinking of a tunnel vault effectively improves the stability and anti-sinking ability of the tunnel vault, and reduces the construction difficulty and maintenance cost. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the utility model, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0020] Fig. 1 The device for delaying the sinking of a tunnel vault provided by the embodiments of the utility model is a structural schematic view.

[0021] Fig. 2 The device for delaying the sinking of a tunnel vault provided by the embodiments of the utility model is a structural schematic view.

[0022] Among them, various signs are as follows:

[0023] 1, connecting rod; 2, anchor rod; 3, hooking rib; 4, connecting piece. DETAILED DESCRIPTION

[0024] The embodiments of the present application are described below in detail, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary, and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0025] In the description of the present application, it should be understood that the terms "length", "width", "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 present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0026] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0027] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; 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 internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0028] Please refer to Figs. 1-2 The embodiment of the present application provides a device for delaying the subsidence of the tunnel vault, which comprises a plurality of anchor rods 2, a plurality of hook rods 3, a connecting piece 4 and a connecting rod 1. The anchor rod 2 is arranged in the tunnel vault, and the end of the anchor rod 2 is exposed; the two ends of the hook rod 3 are respectively connected with different anchor rods 2, and the hook rods 3 are cross arranged; the connecting piece 4 is arranged on the intersection of the hook rods 3, and the connecting piece 4 is used for connecting and fixing the cross hook rods 3; the two ends of the connecting rod 1 are fixed on the connected anchor rods 2.

[0029] The device for delaying the sinking of the tunnel vault provided by the embodiment is characterized in that: the anchor rod 2 is first punched into the tunnel vault, and the end of the anchor rod 2 is exposed, then the adjacent anchor rods 2 are connected and fixed by the connecting rod 1, the anchor rods 2 are cross-connected by the hooking rib 3, the connecting piece 4 is used to fix the cross-connected hooking ribs 3, the fixed cross-connected hooking ribs 3 make the anchor rod 2, the hooking rib 3, the connecting piece 4 and the connecting rod 1 form a local triangular structure and an overall net structure, then the concrete is sprayed to the vault to cover the anchor rod 2, the hooking rib 3, the connecting piece 4 and the connecting rod 1, and a firm tunnel vault is formed. In this way, the pressure on the vault can be effectively dispersed and borne, the stability of the tunnel vault is significantly enhanced, and the sinking speed of the tunnel vault is greatly delayed.

[0030] In one embodiment, the anchor rod 2 is a hollow grouting structure. The anchor rod 2 is a hollow grouting structure, so that the anchor rod 2 can be injected with grout through the hollow part after being punched into the tunnel vault, thereby further enhancing the bonding force between the anchor rod 2 and the rock or soil of the tunnel vault and improving the anchoring effect and overall stability of the anchor rod 2.

[0031] In one embodiment, the connecting piece 4 is a bolt. The connecting piece 4 is a bolt, which has the advantages of convenient installation, easy disassembly, reliable connection and the like, can conveniently connect and fix the cross-connected hooking ribs 3, and ensures the stability and firmness of the net structure.

[0032] In one embodiment, the connecting rod 1 is a ribbed steel bar. The ribbed steel bar has high tensile strength and bending strength, can bear large tension and pressure, enhances the connection and support of the connecting rod 1 to the anchor rod 2, and improves the carrying capacity of the whole device.

[0033] In one embodiment, the hooking rib 3 comprises a straight section and a bent hook end arranged at both ends of the straight section, the bent hook end is in the shape of a circular arc, and the radius of the circular arc of the bent hook end is the same as the radius of the anchor rod 2. The hooking rib 3 comprises a straight section and a bent hook end arranged at both ends of the straight section, the bent hook end is in the shape of a circular arc and has the same radius as the anchor rod 2. This design makes the hooking rib 3 more closely hook the anchor rod 2, prevents the hooking rib 3 from slipping off under stress, and improves the connection reliability of the hooking rib 3 and the anchor rod 2.

[0034] Further, in order to improve the connection strength between the hooking rib 3 and the anchor rod 2, the hooking rib 3 can be fixed to the anchor rod 2 by welding. During connection, the bent hook end of the hooking rib 3 is first hooked to the anchor rod 2, and then the bent hook end of the hooking rib 3 is welded and fixed to the anchor rod 2.

[0035] In one embodiment, the anchor rods 2 are densely arranged in the area where the tunnel vault sinks fast. The anchor rods 2 are densely arranged in the area where the tunnel vault sinks fast, the number of anchor rods 2 in the area where the tunnel vault sinks fast is increased in a targeted manner, the sinking force of the area can be more effectively resisted, the sinking speed of the tunnel vault is slowed down, and the overall stability of the tunnel is improved.

[0036] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A device for delaying the subsidence of a tunnel vault, characterized in that, The device for delaying tunnel vault subsidence comprises: a plurality of anchor rods, the anchor rods being arranged in the tunnel vault, and the anchor rods being exposed at their ends; a plurality of hook rods, the hook rods being connected to different anchor rods at their two ends, and the hook rods being arranged in a cross shape; a connecting piece, the connecting piece being arranged at the intersection of the hook rods, and the connecting piece being used for connecting and fixing the intersecting hook rods; a connecting rod, the connecting rod being fixed at its two ends to the connected anchor rods.

2. The device for delaying tunnel vault subsidence according to claim 1, wherein: the anchor rod is a hollow grouting structure.

3. The device for delaying tunnel vault subsidence according to claim 1, wherein: the connecting piece is a bolt.

4. The device for delaying tunnel vault subsidence according to claim 1, wherein: the connecting rod is a ribbed steel bar.

5. The device for delaying tunnel vault subsidence according to claim 1, wherein: the hook rod comprises a straight section and a hook end arranged at the two ends of the straight section, the hook end being in a circular arc shape, and the radius of the circular arc of the hook end being the same as the radius of the anchor rod.

6. The device for delaying tunnel vault subsidence according to claim 1, wherein: the anchor rods are densely arranged in the area where the tunnel vault subsides fast.

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