Deslagging device for tunnel deep shaft

Abstract

The utility model discloses a tunnel deep vertical shaft deslagging device, which belongs to the field of vertical shaft deslagging, and comprises a steel protection pipe, at least four supporting pieces are fixedly connected to the outer side of the steel protection pipe in an annular array mode, each supporting piece comprises a cross beam and a vertical beam, and the vertical beams are fixedly connected to the outer wall of the steel protection pipe. The cross beam is fixedly connected to the upper end of the vertical beam and fixedly connected with the outer wall of the steel protection pipe, channel steel is fixedly connected between the end, away from the steel protection pipe, of the cross beam and the lower end of the vertical beam, and a grooving device is arranged in the channel steel. The utility model has the advantages that the shovel blade in each channel steel is used for shoveling soil upwards along the channel steel, so that a groove for accommodating the cross beam, the vertical beam and the channel steel is formed on the side wall of the periphery of the vertical shaft opening, the supporting area is increased, and the vertical shaft opening is protected.

Description

Technical Field

[0001] This utility model relates to the technical field of vertical shaft muck removal devices, and in particular to a muck removal device for deep vertical shafts in tunnels. Background Technology

[0002] Subway station tunnels are equipped with ventilation shafts. One end of the ventilation shaft connects to the underground space (usually a horizontal ventilation duct connected to the main tunnel opening), and the other end connects to the surface. Currently, shaft construction mostly adopts the main shaft method. The construction sequence is generally to excavate from top to bottom and follow up with initial support. After excavating to the auxiliary horizontal passage, the secondary lining of the shaft wall is then carried out from bottom to top. The muck removal method for shaft excavation is vertical lifting, first lifting the muck to the surface, and then transporting it away from the surface.

[0003] When the soil around the ground opening of a vertical shaft is unstable, it is easy to cause collapse. However, vertical shaft opening slag removal auxiliary devices, such as the patent (publication) number CN215860164U, adopt the method of expanding the opening into a cone shape. On the one hand, the amount of excavation work is large, and on the other hand, it is not convenient for the auxiliary device to be transferred to the next vertical shaft support. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a slag removal device for deep vertical shafts in tunnels, thereby solving the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A slag removal device for deep vertical shafts in tunnels includes a steel casing. At least four supporting members are fixedly connected to the outer side of the steel casing in a circular array. Each supporting member includes a horizontal beam and a vertical beam. The vertical beam is fixedly connected to the outer wall of the steel casing. The horizontal beam is fixedly connected to the upper end of the vertical beam and to the outer wall of the steel casing. A channel steel is fixedly connected between the end of the horizontal beam away from the steel casing and the lower end of the vertical beam. A grooving device is provided inside the channel steel.

[0007] Preferably, the grooving device includes a mounting frame, which is fixedly connected to a crossbeam. A hydraulic telescopic rod is fixedly connected to the mounting frame. A shovel is slidably connected to the inner groove of the channel steel. The telescopic end of the hydraulic telescopic rod is fixedly connected to the shovel.

[0008] Preferably, a number of threaded holes are provided on the upper side of the end of the crossbeam away from the steel protective pipe.

[0009] Preferably, a support plate is fixedly connected to the upper end of two crossbeams, and several bolt columns are fixedly connected to the upper side of the support plate.

[0010] Preferably, a pad is fixedly connected to the upper end of one of the crossbeams.

[0011] Preferably, anti-slip strips are fixedly connected to the upper side of the pad at intervals.

[0012] This utility model provides a muck removal device for deep vertical shaft tunnels. It has the following beneficial effects:

[0013] (1) Install steel protective pipes at the top of the excavated shaft. Set protective pipes on the inner wall of the top of the shaft. Set clearance grooves on the protective pipes. Align the channel steel with the clearance grooves. Cut the lower edge of the channel steel into the soil. Use the shovel in each channel steel to shovel soil upwards along the channel steel, so that the side wall of the shaft opening forms a groove to accommodate the crossbeams, vertical beams and channel steel, increasing the support area and protecting the shaft opening. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the basic structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the steel protective pipe hoisting status of this utility model;

[0016] Figure 3 This is a structural schematic diagram of the support component of this utility model. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0018] Please see Figures 1 to 3 This utility model provides a technical solution: a slag removal device for deep vertical shafts in tunnels, including a steel protective pipe 1. At least four supporting members are fixedly connected in a ring array on the outer side of the steel protective pipe 1. The supporting members include a horizontal beam 2 and a vertical beam 3. The vertical beam 3 is fixedly connected to the outer wall of the steel protective pipe 1. The horizontal beam 2 is fixedly connected to the upper end of the vertical beam 3 and is fixedly connected to the outer wall of the steel protective pipe 1. A channel steel 4 is fixedly connected between the end of the horizontal beam 2 away from the steel protective pipe 1 and the lower end of the vertical beam 3. The inner side of the groove of the channel steel 4 is formed with a bevel 411 by mechanical processing, so that the edge of the channel steel 4 is thinned to facilitate soil cutting. A grooving device is provided inside the channel steel 4.

[0019] The grooving device includes a mounting frame 41, which is fixedly connected to the crossbeam 2. The mounting frame 41 is also fixedly connected to a hydraulic telescopic rod 42. The inner groove of the channel steel 4 is slidably connected to a shovel 43. The telescopic end of the hydraulic telescopic rod 42 is fixedly connected to the shovel 43. Several threaded holes 44 are provided on the upper side of the end of the crossbeam 2 away from the steel protective pipe 1. The threaded holes 44 allow the mounting frame 41 to be detachably installed by screws, so that a hydraulic telescopic rod 42 is installed at the end of each channel steel 4. The steel protective pipe 1 is lowered by suspension. During the descent, the shovel 43 in each channel steel 4 scrapes soil upward along the channel steel 4, so that the side wall of the shaft 10 opening forms a groove to accommodate the crossbeam 2, the vertical beam 3 and the channel steel 4, increasing the support area and protecting the shaft 10 opening.

[0020] Two crossbeams 2 are fixedly connected to support plates 5 at their upper ends. Several bolt columns 51 are fixedly connected to the upper side of the support plates 5. When the steel protective pipe 1 is installed, the bolt columns 51 are connected to the lifting device. After the steel protective pipe 1 is installed in place, the lifting device is removed. Conventional slag lifting devices such as gantry frames and vertical lifting slag discharge machines of existing technology are installed on the bolt columns 51. On the one hand, they provide stable support, and on the other hand, they are convenient for reuse through modular assembly.

[0021] One of the crossbeams 2 is fixedly connected to a pad 6 at the upper end. Anti-slip strips 61 are fixedly connected to the upper side of the pad 6 at intervals. The pad 6 is fixedly connected to the threaded hole 44 by countersunk bolts. When the vehicle or equipment transporting the slag moves to the pad 6, the support around the opening of the shaft 10 is stable, preventing the ground from collapsing.

[0022] This utility model involves installing a steel protective pipe 1 at the upper end of a completed vertical shaft 10, with a protective wall pipe 20 installed on the inner wall of the upper end of the shaft 10. The protective wall pipe 20 has a relief groove 30, and the channel steel 4 is aligned with the relief groove 30. The lower edge of the channel steel 4 cuts into the soil. The shovel 43 inside each channel steel 4 scrapes the soil upward along the channel steel 4, so that the side wall around the opening of the shaft 10 forms a groove to accommodate the horizontal beam 2, the vertical beam 3 and the channel steel 4, thereby increasing the support area and protecting the opening of the shaft 10.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A slag removal device for a deep vertical shaft in a tunnel, comprising a steel casing (1), wherein at least four supporting members are fixedly connected in a ring array on the outer side of the steel casing (1), the supporting members comprising a crossbeam (2) and a vertical beam (3), the vertical beam (3) being fixedly connected to the outer wall of the steel casing (1), the crossbeam (2) being fixedly connected to the upper end of the vertical beam (3) and fixedly connected to the outer wall of the steel casing (1), and a channel steel (4) being fixedly connected between the end of the crossbeam (2) away from the steel casing (1) and the lower end of the vertical beam (3), characterized in that: A grooving device is provided inside the channel steel (4).

2. The muck removal device for deep vertical shaft tunnels according to claim 1, characterized in that: The grooving device includes a mounting frame (41), which is fixedly connected to the crossbeam (2). The mounting frame (41) is fixedly connected to a hydraulic telescopic rod (42). The inner groove of the channel steel (4) is slidably connected to a shovel (43). The telescopic end of the hydraulic telescopic rod (42) is fixedly connected to the shovel (43).

3. The muck removal device for deep vertical shaft tunnels according to claim 2, characterized in that: Several threaded holes (44) are provided on the upper side of the end of the crossbeam (2) away from the steel protective pipe (1).

4. The muck removal device for deep vertical shaft tunnels according to claim 1, characterized in that: Two of the crossbeams (2) are fixedly connected to the upper end of the support plate (5), and several bolt columns (51) are fixedly connected to the upper side of the support plate (5).

5. The muck removal device for deep vertical shaft tunnels according to claim 1, characterized in that: One of the crossbeams (2) has a fixed connection plate (6) at its upper end.

6. A muck removal device for deep vertical shaft tunnels according to claim 5, characterized in that: Anti-slip strips (61) are fixedly connected to the upper side of the pad (6) at intervals.

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