CN210164491U

CN210164491U - A tunnel face consolidates stock device for railway tunnel construction

Info

Publication number: CN210164491U
Application number: CN201920784206.6U
Authority: CN
Inventors: 田军光; 陈鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-03-20
Anticipated expiration: 2029-05-28

Abstract

The utility model discloses a face reinforcing anchor rod device for railway tunnel construction, which comprises a cylindrical anchor rod main body, wherein the top end of the anchor rod main body is fixedly welded with a twist drill bit, a central hole is arranged in the anchor rod main body, a movable column is arranged in the central hole, the movable column is concentric with the central hole, and a plurality of groups of telescopic anchor column components are uniformly arranged on the movable column from top to bottom; the advantages are that: the utility model discloses simple structure, but strut the face through the special scalable anchor post mechanism of design, in using through fluted drill screw in face, then make the anchor post pierce the ground around the stock main part, good shearing resistance performance has, thereby replace the slip casting stock, play the function that the face was strutted to the short time, can make the anchor post withdrawal but go out the stock when further excavation, realize the reuse of stock, the slip casting step has been cancelled, the construction flow has been simplified, realize the utilization of resources maximize on the basis that improves work efficiency, be worth using widely in a large number.

Description

A tunnel face consolidates stock device for railway tunnel construction

Technical Field

The utility model relates to a railway construction technical field especially relates to a face consolidates stock device for railway tunnel construction.

Background

With the further acceleration of urbanization, the linkage development of regional economy is promoted, passenger dedicated lines and intercity tracks are being constructed in large quantities, the number of urban tunnels is increasing continuously, and in the tunnel construction process, when the tunnel passes through poor geological sections such as weak surrounding rocks and the like, the phenomena of surrounding rock collapse, instability and the like are easy to occur, and in order to avoid the situations, the tunnel face needs to be pre-reinforced, so that the safety of the full section of the tunnel is realized, and the smooth construction is ensured; the existing supporting system is realized by adopting a glass fiber anchor rod grouting technology, the technology really improves the stability of a tunnel face greatly, but has the following defects: the tunnel face only needs the temporary support of short time, and the tunnel face still need continue to excavate, and the glass fiber stock realizes firmly through the slip casting, and the glass fiber stock is destroyed not to be retrieved when excavating once more, can not used repeatedly, causes a large amount of wasting of resources.

Disclosure of Invention

An object of the utility model is to provide a face consolidates stock device for railway tunnel construction.

The content of the utility model is as follows: the utility model provides a face consolidates stock device for railway tunnel construction, it includes columniform stock main part, the fixed welding in top of stock main part has fluted drill bit set up has the centre bore in the stock main part, be provided with in the centre bore and remove the post, remove the post with the centre bore is concentric, remove on the post from last to installing the scalable anchor post subassembly of a plurality of groups down the equipartition, every scalable anchor post subassembly includes along the scalable anchor post mechanism of a plurality of circumferencial direction equipartition setting, every scalable anchor post mechanism comprises connecting rod and anchor post, the one end of connecting rod with it is articulated to remove the post, the other end of connecting rod with the one end of anchor post is articulated, be provided with the inclined hole in the outer periphery tilt of stock main part, the inclined hole with the centre bore is linked together, the anchor post with inclined hole sliding connection, a limiting disc is horizontally and fixedly arranged in the central hole, a matching through hole is formed in the central position of the limiting disc and is in sliding connection with the movable column, a compression spring is sleeved on the movable column, the top end of the compression spring is in contact with the limiting disc, the bottom end of the compression spring is in contact with a limiting circular table which is fixedly arranged on the movable column, the outer circumferential surface of the limiting circular table is in sliding connection with the central hole, a circular plate is fixedly connected to the bottom end of the anchor rod body, a sliding through hole is formed in the central position of the circular plate and is in sliding connection with the movable column, a movable disc is horizontally and fixedly connected to the bottom end of the movable column and is located under the circular plate, and two operating levers are horizontally and symmetrically fixed on the outer circumferential surface of the circular plate, the operating rod is vertically provided with a threaded through hole, the movable disc is provided with a unthreaded hole corresponding to the threaded through hole in position, an adjusting bolt is inserted in the unthreaded hole in a penetrating mode, and the bottom end of the adjusting bolt is in threaded connection with the threaded through hole.

Furthermore, a thread dismounting through hole is formed in the movable disc, and the circular plate is arranged right above the thread dismounting through hole.

Furthermore, the top end of the anchor column is a pointed top.

The utility model has the advantages that: the utility model discloses simple structure, but strut the face through the special scalable anchor post mechanism of design, in using through fluted drill screw in face, then make the anchor post pierce the ground around the stock main part, good shearing resistance performance has, thereby replace the slip casting stock, play the function that the face was strutted to the short time, can make the anchor post withdrawal but go out the stock when further excavation, realize the reuse of stock, the slip casting step has been cancelled, the construction flow has been simplified, realize the utilization of resources maximize on the basis that improves work efficiency, be worth using widely in a large number.

Description of the drawings:

fig. 1 is a perspective view of the present invention;

fig. 2 is a top view of the present invention;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;

in the figure, the anchor rod comprises an anchor rod body 1, a twist drill bit 2, a central hole 3, a movable column 4, a connecting rod 5, an anchor column 6, an inclined hole 7, a limiting disc 8, a matching through hole 9, a compression spring 10, a limiting circular truncated cone 11, a circular plate 12, a sliding through hole 13, a movable disc 14, an operating rod 15, a threaded through hole 16, a smooth hole 17, an adjusting bolt 18 and a threaded dismounting through hole 19.

The specific implementation mode is as follows:

as shown in fig. 1 to 3, a tunnel face reinforcing anchor rod device for railway tunnel construction comprises a cylindrical anchor rod main body 1, wherein a twist drill 2 is fixedly welded at the top end of the anchor rod main body 1, a central hole 3 is formed in the anchor rod main body 1, a movable column 4 is arranged in the central hole 3, the movable column 4 is concentric with the central hole 3, a plurality of groups of telescopic anchor rod components are uniformly arranged on the movable column 4 from top to bottom, each telescopic anchor rod component comprises a plurality of telescopic anchor rod mechanisms uniformly arranged along the circumferential direction, each telescopic anchor rod mechanism comprises a connecting rod 5 and an anchor rod 6, one end of the connecting rod 5 is hinged with the movable column 4, the other end of the connecting rod 5 is hinged with one end of the anchor rod 6, and an inclined hole 7 is obliquely and upwardly arranged on the outer circumferential face of the anchor rod main body 1, the inclined hole 7 is communicated with the central hole 3, the anchor post 6 is connected with the inclined hole 7 in a sliding manner, a limiting disc 8 is horizontally and fixedly arranged in the central hole 3, a matching through hole 9 is formed in the central position of the limiting disc 8, the matching through hole 9 is connected with the movable post 4 in a sliding manner, a compression spring 10 is sleeved on the movable post 4, the top end of the compression spring 10 is in contact with the limiting disc 8, the bottom end of the compression spring 10 is in contact with a limiting circular table 11, the limiting circular table 11 is fixedly arranged on the movable post 4, the outer circumferential surface of the limiting circular table 11 is connected with the central hole 3 in a sliding manner, a circular plate 12 is fixedly connected to the bottom end of the anchor rod body 1, a sliding through hole 13 is formed in the central position of the circular plate 12, the sliding through hole 13 is connected with the movable post 4 in a sliding manner, and a movable disc 14 is horizontally and fixedly, the moving disc 14 is positioned right below the circular plate 12, two operating levers 15 are horizontally fixed on the outer circumferential surface of the circular plate 12 in a centrosymmetric manner, a threaded through hole 16 is vertically formed in each operating lever 15, a smooth hole 17 is formed in the moving disc 14 corresponding to the threaded through hole 16, an adjusting bolt 18 is inserted into each smooth hole 17 in a penetrating manner, and the bottom end of each adjusting bolt 18 is in threaded connection with the threaded through hole 16; a thread dismounting through hole 19 is further formed in the moving disc 14, and the circular plate 12 is arranged right above the thread dismounting through hole 19; the top end of the anchor post 6 is a pointed top.

The working principle is as follows: when the twist drill bit works, the tip end of the twist drill bit 2 is enabled to be abutted against a tunnel face, then the operating lever 15 is held by hand to rotate so that the twist drill bit 2 is tapped into rock soil in the tunnel face, when proper depth transition is achieved, the adjusting bolt 18 is rotated so that the moving disc 14 moves towards the direction of the tunnel face, and the moving disc 14 pushes the moving column 4, so that the anchor column 6 extends out and penetrates into the surrounding rock soil, and a good anchoring pull resistance function is achieved; and when the excavation is continued after the support is finished, unscrewing the adjusting bolt 18, screwing the detached adjusting bolt 18 into the thread detaching through hole 19, abutting the bottom of the adjusting bolt 18 against the circular plate 12 to withdraw the movable column 4, retracting the anchor column 6, and then pulling out the anchor rod body 1.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a face consolidates stock device for railway tunnel construction which characterized in that: it includes columniform stock main part (1), the fixed welding in top of stock main part (1) has fluted drill (2) seted up centre bore (3) in stock main part (1), be provided with in centre bore (3) and remove post (4), remove post (4) with centre bore (3) are concentric remove from last to installing the scalable anchor post subassembly of a plurality of groups down the equipartition on post (4), every scalable anchor post subassembly includes the scalable anchor post mechanism of a plurality of along the circumferencial direction equipartition setting, every scalable anchor post mechanism comprises connecting rod (5) and anchor post (6), the one end of connecting rod (5) with it is articulated to remove post (4), the other end of connecting rod (5) with the one end of anchor post (6) is articulated be provided with inclined hole (7) on the outer periphery of stock main part (1) in the slant, the inclined hole (7) is communicated with the center hole (3), the anchor post (6) is connected with the inclined hole (7) in a sliding manner, a limiting disc (8) is horizontally and fixedly arranged in the center hole (3), a matching through hole (9) is formed in the center position of the limiting disc (8), the matching through hole (9) is connected with the movable post (4) in a sliding manner, a compression spring (10) is sleeved on the movable post (4), the top end of the compression spring (10) is contacted with the limiting disc (8), the bottom end of the compression spring (10) is contacted with a limiting circular table (11), the limiting circular table (11) is fixedly arranged on the movable post (4), the outer circumferential surface of the limiting circular table (11) is connected with the center hole (3) in a sliding manner, a circular plate (12) is fixedly connected to the bottom end of the anchor rod main body (1), and a sliding through hole (13) is formed in the center position of the circular plate (12), the sliding through hole (13) is connected with the moving column (4) in a sliding mode, a moving disc (14) is horizontally and fixedly connected to the bottom end of the moving column (4), the moving disc (14) is located right below the circular plate (12), two operating levers (15) are horizontally and symmetrically fixed on the outer circumferential surface of the circular plate (12), threaded through holes (16) are vertically formed in the operating levers (15), unthreaded holes (17) are formed in the moving disc (14) and correspond to the threaded through holes (16), adjusting bolts (18) are inserted in the unthreaded holes (17) in a penetrating mode, and the bottom ends of the adjusting bolts (18) are in threaded connection with the threaded through holes (16).

2. The face-reinforced anchor rod device for railway tunnel construction according to claim 1, wherein: the moving disc (14) is also provided with a thread dismounting through hole (19), and the circular plate (12) is arranged right above the thread dismounting through hole (19).

3. The face-reinforced anchor rod device for railway tunnel construction according to claim 1, wherein: the top end of the anchor post (6) is a pointed top.