Supporting structure for full-section fabricated lining of drilling and blasting method tunnel

Abstract

The utility model discloses a supporting structure for a full-section assembly type lining of a drilling and blasting method tunnel, which relates to the field of drilling and blasting method tunnel supporting and comprises an anchor rod structure, a reinforcing mesh, a frame body supporting structure and a steel rail supporting structure. One end of the anchor rod structure is arranged in the rock mass structure, and the other end of the anchor rod structure penetrates out of the reinforcing mesh and is embedded into the frame body supporting structure; the reinforcing mesh is arranged between the rock mass structure and the frame body supporting structure; the steel rail supporting structure is arranged on the other side of the frame body supporting structure. According to the supporting structure for the full-section assembly type lining of the drilling and blasting method tunnel, detachable connection is achieved, the wood stick bridging principle is adopted to disperse pressure on each supporting stick, and the effects of facilitating construction, effectively supporting and improving the supporting effect can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the drilling and blasting method tunnel support field especially the full face assembly type lining's support structure for drilling and blasting method tunnel. BACKGROUND

[0002] Drilling and blasting method tunnel support is a construction method widely used in tunnel construction, which combines modern mechanized equipment and efficient blasting technology to ensure the safety and efficiency of tunnel excavation.

[0003] Drilling and blasting method tunnel support usually involves using large mechanical equipment such as rock drilling jumbo, multi-arm rock drilling jumbo, etc. for drilling, and removing rock through precisely controlled blasting to form a tunnel profile. This process requires high technical support and strict safety measures to ensure the safety of construction personnel and the quality of the project.

[0004] In terms of support, initial support will be carried out immediately after drilling and blasting method tunnel construction to stabilize the newly excavated tunnel wall. Common initial support methods include sprayed concrete, anchor rod, steel frame, etc. These measures can effectively control the deformation of surrounding rock and prevent landslides and other possible geological disasters.

[0005] With the development of technology, drilling and blasting method is also constantly improving and a support structure with good support effect and convenient construction is needed. SUMMARY

[0006] The utility model provides a kind of support structure for the full face assembly type lining of drilling and blasting method tunnel, including anchor rod structure, reinforcing mesh, frame support structure and steel rail support structure;

[0007] The anchor rod structure is arranged in the rock mass structure at one end, and the other end is embedded in the frame support structure from the net of reinforcing mesh;

[0008] The reinforcing mesh is arranged between the rock mass structure and the frame support structure;

[0009] The steel rail support structure is arranged on the other side of the frame support structure.

[0010] Preferably, the anchor rod structure is provided with several;

[0011] Several anchor rod structures are arranged on the rock mass structure in a staggered manner;

[0012] Several anchor rod structures are provided with hooks near the rock layer, and the reinforcing mesh is hung on the hooks.

[0013] Preferably, the frame support structure includes frame connecting mechanism and frame support structure;

[0014] The left connecting cylinder is arranged on the front side of the left end of the cuboid framework structure, and the right connecting cylinder is arranged on the rear side of the right end of the cuboid framework structure.

[0015] The left connecting cylinder is arranged on the front side of the left end of the cuboid framework structure, and the right connecting cylinder is arranged on the rear side of the right end of the cuboid framework structure.

[0016] The left connecting cylinder and the right connecting cylinder are provided with connecting bolts.

[0017] Preferably, the bottom of the frame support structure is welded to the upper surface of the cuboid framework structure.

[0018] The frame support structure comprises a plurality of support rods, which are arranged in an arch bridge shape through the principle of wooden rod bridging, and the contact positions of the support rods are fixed by steel wires.

[0019] Preferably, the rail support structure is in a circular arc shape.

[0020] The rail support structure is fixedly connected with a fixing pin at both ends.

[0021] The fixing pin comprises a fixing cylinder and a positioning pin.

[0022] The positioning pin is arranged in the fixing cylinder.

[0023] Preferably, the gap between the rock mass structure and the frame support structure is provided with a filler.

[0024] The frame connecting mechanism further comprises a pair of connecting pins, and the connecting pin comprises a fixing plate and an end connecting cylinder.

[0025] The end connecting cylinder is arranged at one end of the fixing plate, and the end connecting cylinder is used in cooperation with the left connecting cylinder and the right connecting cylinder.

[0026] The end connecting cylinder is provided with a connecting bolt.

[0027] Compared with the prior art, the utility model has the following beneficial effects:

[0028] The utility model provides a support structure of full-face assembly type lining for a drill-and-blast method tunnel, and aims at the problem of drill-and-blast method tunnel support, establishes a frame support structure based on the principle of wooden rod bridging to effectively solve the support problem, disperses the overall pressure by using support rods to improve the support effect of the support structure, solves the problem of difficult construction by using a plurality of frame support structures in a connected mode, and can be used in different scenes.

[0029] The technical scheme of the utility model will be further described in detail below with reference to the drawings and embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a structural schematic view of a support structure of a full-face assembled lining for a drill-and-blast tunnel according to the present application;

[0031] Figure 2 is a schematic view of a frame support structure of a support structure of a full-face assembled lining for a drill-and-blast tunnel according to the present application;

[0032] Figure 3 is a top view of a frame connecting mechanism of a support structure of a full-face assembled lining for a drill-and-blast tunnel according to the present application;

[0033] Figure 4 is a front view of a connecting pin of a support structure of a full-face assembled lining for a drill-and-blast tunnel according to the present application;

[0034] Figure 5 is a plan view of a connecting pin of a support structure of a full-face assembled lining for a drill-and-blast tunnel according to the present application.

[0035] Reference signs

[0036] 1, anchor rod structure; 2, steel mesh; 3, frame support structure; 31, frame connecting mechanism; 311, left connecting cylinder; 312, right connecting cylinder; 32, frame support structure; 321, support stick; 4, steel rail support structure; 41, fixing pin; 411, fixing cylinder; 412, positioning pin; 5, rock mass structure; 6, hook; 7, connecting bolt; 8, filler; 9, connecting pin; 91, fixing plate; 92, end connecting cylinder. DETAILED DESCRIPTION

[0037] The technical solutions of the present application are further described below by means of the accompanying drawings and examples.

[0038] Unless otherwise defined, the technical terms or scientific terms used in the present application shall have the usual meanings understood by those with ordinary skills in the field to which the present application belongs.

[0039] The similar words such as "comprising" or "including" used in the utility model mean that the elements before the words cover the elements listed after the words, and the possibility of covering other elements is not excluded. The directions or position relations indicated by the terms "in", "out", "up", "down" and the like are based on the directions or position relations shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply 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 a limitation on the utility model, and when the absolute position of the described object changes, the relative position relation may also change accordingly. In the utility model, unless otherwise specified and limited, the term "attached" and the like should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrated; can be directly connected, can be indirectly connected through an intermediate medium, can be the communication or interaction relationship between 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.

[0040] As Figure 1 , Figure 2 , Figure 3 and Figure 4 indicated, the utility model discloses a kind of support structure for full-face assembly type lining of drill and blast tunnel, including anchor rod structure 1, reinforcing mesh 2, frame body support structure 3 and steel rail support structure 4;

[0041] Anchor rod structure 1 one end is arranged in rock mass structure 5, and the other end is embedded in frame body support structure 3 from the net of reinforcing mesh 2;

[0042] Preferably, the anchor rod structure 1 is provided with several;

[0043] Several anchor rod structures 1 are arranged on rock mass structure 5 in a scattered manner;

[0044] Several anchor rod structures 1 are provided with hooks 6 near rock stratum, and the reinforcing mesh 2 is hung on the hook 6.

[0045] Reinforcing mesh 2 is arranged between rock mass structure 5 and frame body support structure 3;

[0046] Preferably, the frame body support structure 3 includes frame body connecting mechanism 31 and frame body support structure 32;

[0047] The left and right ends of the cuboid framework structure are respectively provided with left connecting barrel 311 and right connecting barrel 312;

[0048] Left connecting barrel 311 is arranged at the left end front side of the cuboid framework structure, and right connecting barrel 312 is arranged at the right end rear side of the cuboid framework structure;

[0049] The left connecting cylinder 311 and the right connecting cylinder 312 are provided with connecting bolts 7.

[0050] Preferably, the frame support structure 32 is welded at the bottom to the upper surface of the cuboid framework structure.

[0051] The frame support structure 32 comprises a plurality of support rods 321 which are arched by the principle of wooden rod bridging, and the contact positions of the support rods 321 are fixed by steel wires.

[0052] The frame connecting mechanism 31 further comprises a pair of connecting pins 9, which comprise a fixed plate 91 and an end connecting cylinder 92.

[0053] The end connecting cylinder 92 is arranged at one end of the fixed plate 91, and the end connecting cylinder 92 is used in cooperation with the left connecting cylinder 311 and the right connecting cylinder 312.

[0054] The end connecting cylinder 92 is provided with connecting bolts 7.

[0055] Preferably, the gap between the rock mass structure 5 and the frame support structure 3 is provided with a filler 8.

[0056] The rail support structure 4 is arranged on the other side of the frame support structure 3.

[0057] Preferably, the rail support structure 4 is in the shape of a circular arc.

[0058] The rail support structure 4 is fixedly connected with a fixed pin 41 at both ends.

[0059] The fixed pin 41 comprises a fixed cylinder 411 and a positioning pin 412.

[0060] The positioning pin 412 is arranged inside the fixed cylinder 411.

[0061] The use steps of the utility model are as follows: in the use process, first, the anchor rod structure 1 is fixed in the rock mass structure 5 by punching, the reinforcement mesh 2 is hung on the anchor rod structure 1, the filler 8 is applied once, the appropriate number of frame support structures 3 are selected, the frame support structures 3 are connected and inserted on the anchor rod structure 1, the end connecting cylinder 92 is connected at both ends of the frame support structure 3 and is fixed, the filler 8 is applied twice, the rail support structure 4 is arranged at the lower part of the frame support structure 3, and the fixed pin 41 is used for fixing.

[0062] It should be pointed out finally that: the above examples are only used to illustrate the technical solutions of the utility model and not to limit them, although the utility model has been explained in detail with reference to the preferred embodiments, ordinary skilled in the art should understand that: its still can modify or equivalent replace the technical solutions of the utility model, and these modifications or equivalent replacements also can not make the modified technical solutions deviate from the spirit and scope of the technical solutions of the utility model.

Claims

1. A support structure for full-section prefabricated lining of drill-and-blast tunnels, characterized in that, This includes anchor bolt structure, steel mesh, frame support structure, and rail support structure; One end of the anchor structure is set inside the rock mass structure, and the other end passes through the steel mesh and is embedded in the frame support structure. The steel mesh is placed between the rock mass structure and the frame support structure; The rail support structure is located on the other side of the frame support structure; The frame support structure includes a frame connection mechanism and a frame support structure; The frame connection mechanism is a cuboid skeleton structure with a left connecting cylinder and a right connecting cylinder at each end. The left connecting cylinder is located on the front side of the left end of the cuboid frame structure, and the right connecting cylinder is located on the rear side of the right end of the cuboid frame structure. The left and right connecting cylinders are equipped with connecting bolts; The bottom of the frame support structure is welded to the upper surface of the cuboid skeleton structure; The frame support structure includes several support rods, which are arched by the principle of wooden sticks bridging, and the contact parts of the support rods are fixed by steel wires. The frame connection mechanism also includes a pair of connecting pins, each connecting pin comprising a fixing plate and an end connecting cylinder; The end connecting cylinder is disposed at one end of the fixed plate, and the end connecting cylinder is used in conjunction with the left connecting cylinder and the right connecting cylinder; The end connecting cylinder is equipped with connecting bolts.

2. The support structure for full-section prefabricated lining of drill-and-blast tunnels according to claim 1, characterized in that, The anchor structure is provided in several parts; Several of the aforementioned anchor structures are staggered and arranged on the rock mass structure; Several of the anchor structures are equipped with hooks near the rock strata, and the steel mesh is hung on the hooks.

3. The support structure for full-section prefabricated lining of drill-and-blast tunnels according to claim 2, characterized in that, The rail support structure is arc-shaped; The rail support structure is fixed at both ends with fixing pins. The fixing pin includes a fixing cylinder and a positioning pin; The positioning pin is located inside the fixed cylinder.

4. A support structure for a full-section prefabricated lining of a drill-and-blast tunnel according to claim 3, characterized in that, The gap between the rock mass structure and the frame support structure is filled with a filling material.

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