Tunnel steel lining pre-holes lofting device and method

Abstract

The application discloses a tunnel steel lining reserved hole position lofting device and method, which comprises a moving vehicle (1), a fusion projection assembly and a steel bar detection device (2); the moving vehicle (1) is arranged on a track inside a tunnel and can move along the track inside the tunnel, the fusion projection assembly is arranged on the moving vehicle (1), the steel lining reserved hole drawing is stored in the fusion projection assembly, and an output end of the fusion projection assembly is arranged to face the inner wall of the tunnel and project the steel lining reserved hole on the inner wall of a tunnel segment (4); the steel bar detection device (2) is arranged on the moving vehicle (1), and an output end of the steel bar detection device (2) is arranged to face the inner wall of the tunnel segment (4). The application can solve the problems of the prior art, i.e., the bolt implantation touches the internal steel bars of the segment during the installation of the steel lining and the low work efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to a tunnel repair device and method, in particular to a tunnel steel lining reserved hole lofting device and method. BACKGROUND

[0002] As a main repair technology for tunnel structure damage, steel lining reinforcement is widely used in the treatment of tunnel transverse large deformation and longitudinal uneven settlement caused by various reasons. The principle is as follows: based on the original reinforced concrete structure, a circle of 2-3cm thick steel plate is installed on the inner arc of the segment as a steel lining to provide support. The segmented steel plates are connected by welding to form a steel ring, and the steel ring is connected with the concrete segment through bolts, and the gap between the steel ring and the segment is filled with epoxy resin to make it an integral whole, forming a new stress structure and improving the overall strength of the tunnel.

[0003] After the steel lining is assembled in place, bolt planting work needs to be carried out according to the reserved bolt hole position on the steel lining. Through the planting of nearly 100 bolts, rigid connection between the steel lining and the tunnel segment is achieved. According to the traditional construction mode, all the reserved hole positions on the steel lining are uniformly designed. However, there is a certain degree of difference in the distribution of steel bars inside the tunnel segment. Therefore, according to the traditional bolt planting process, the steel bars inside the segment will often be touched during the process of the bolt being implanted into the segment through the reserved hole of the steel lining, which will affect the construction quality and efficiency to some extent.

[0004] On the other hand, in order to avoid the above situation, the corresponding hole position will be manually marked on the segment according to the distribution position of the reserved hole of the steel lining, and steel bar detection will be carried out at the hole position, so as to avoid the hole position that may touch the steel bar. However, nearly 100 bolts need to be implanted into the segment, and large-scale reinforcement projects usually involve hundreds of segments. If all the hole positions are marked, measured and re-planned, the workload will be extremely large and the work efficiency will be low.

[0005] Therefore, it is necessary to provide a tunnel steel lining reserved hole lofting device and method, which can solve the problems of bolt implantation touching the steel bars inside the segment and low work efficiency during the installation of the steel lining in the prior art. SUMMARY

[0006] The purpose of the present application is to provide a tunnel steel lining reserved hole lofting device and method, which can solve the problems of bolt implantation touching the steel bars inside the segment and low work efficiency during the installation of the steel lining in the prior art.

[0007] The present application is implemented as follows:

[0008] The utility model provides a kind of tunnel steel lining preformed hole lofting device, including mobile car, fusion projection component and steel bar detection equipment;Mobile car is set up on the track inside tunnel and can move inside tunnel along track, fusion projection component is set on mobile car, steel lining preformed hole drawing is stored in fusion projection component, and the output end of fusion projection component is set to tunnel inner wall and projects steel lining preformed hole on the inner wall of tunnel segment;Steel bar detection equipment is set on mobile car, and the output end of steel bar detection equipment is set to the inner wall of tunnel segment.

[0009] The utility model discloses a kind of tunnel steel lining preformed hole lofting device, including mobile car, fusion projection component and steel bar detection equipment;Mobile car is set up on the track inside tunnel and can move inside tunnel along track, fusion projection component is set on mobile car, steel lining preformed hole drawing is stored in fusion projection component, and the output end of fusion projection component is set to tunnel inner wall and projects steel lining preformed hole on the inner wall of tunnel segment;Steel bar detection equipment is set on mobile car, and the output end of steel bar detection equipment is set to the inner wall of tunnel segment。

[0010] The utility model discloses a kind of tunnel steel lining preformed hole lofting device, including mobile car, fusion projection component and steel bar detection equipment;Mobile car is set up on the track inside tunnel and can move inside tunnel along track, fusion projection component is set on mobile car, steel lining preformed hole drawing is stored in fusion projection component, and the output end of fusion projection component is set to tunnel inner wall and projects steel lining preformed hole on the inner wall of tunnel segment;Steel bar detection equipment is set on mobile car, and the output end of steel bar detection equipment is set to the inner wall of tunnel segment。

[0011] The utility model discloses a kind of tunnel steel lining preformed hole lofting device, including mobile car, fusion projection component and steel bar detection equipment;Mobile car is set up on the track inside tunnel and can move inside tunnel along track, fusion projection component is set on mobile car, steel lining preformed hole drawing is stored in fusion projection component, and the output end of fusion projection component is set to tunnel inner wall and projects steel lining preformed hole on the inner wall of tunnel segment;Steel bar detection equipment is set on mobile car, and the output end of steel bar detection equipment is set to the inner wall of tunnel segment。

[0012] The utility model discloses a kind of tunnel steel lining preformed hole lofting device, including mobile car, fusion projection component and steel bar detection equipment;Mobile car is set up on the track inside tunnel and can move inside tunnel along track, fusion projection component is set on mobile car, steel lining preformed hole drawing is stored in fusion projection component, and the output end of fusion projection component is set to tunnel inner wall and projects steel lining preformed hole on the inner wall of tunnel segment;Steel bar detection equipment is set on mobile car, and the output end of steel bar detection equipment is set to the inner wall of tunnel segment。

[0013] A kind of tunnel steel lining preformed hole lofting device lofting method, comprising the following steps:

[0014] Step 1: according to steel lining preformed hole drawing input fusion projection component in the fusion ware of fusion projection component;

[0015] Step 2: fusion projection component and steel bar detection equipment are moved to a ring tunnel segment by mobile car;

[0016] Step 3: steel lining preformed hole is projected to the inner wall of this ring tunnel segment by several projectors of fusion projection component;

[0017] Step 4: the steel bar in this ring tunnel segment is detected by steel bar detection equipment;

[0018] Step 5: according to the steel lining preformed hole projection position on tunnel segment and the steel bar position in tunnel segment, adjust and mark the steel lining preformed hole on tunnel segment;

[0019] Step 6: fusion projection component and steel bar detection equipment are moved to next ring tunnel segment by mobile car;

[0020] Step 7: Repeat steps 3 to 6 until all the reserved hole positions on the inner wall of the tunnel segment are labeled and adjusted.

[0021] In steps 2 and 6, the center of the ring of the several projectors of the fusion projection assembly coincides with the center of the ring tunnel segment.

[0022] Compared with the prior art, the present application has the following beneficial effects:

[0023] 1. The present application inputs the complete point position map into the fusion device through multi-channel projection fusion, projects several projection pictures onto the inner wall of the curved tunnel segment and realizes multi-angle, cross-linkage and complete image presentation. The distribution image of the steel lining reserved hole position is projected on the tunnel segment by several projectors, the reserved hole position on the tunnel segment is accurately projected, the labeling efficiency of the reserved hole position on the tunnel segment is greatly improved, the hole rate when implanting the bolt can be improved by more than 30%, and the damage of drilling to the structure of the tunnel segment is effectively controlled.

[0024] 2. The present application realizes real-time detection of the position of the steel bar in the tunnel segment by the steel bar detection equipment, adjusts the position of the steel lining reserved hole to avoid the steel bar in the tunnel segment, thereby secondarily optimizes and obtains the accurate steel lining processing drawing, and provides guidance for subsequent accurate processing of the steel lining. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic view of the tunnel steel lining reserved hole lofting device of the present application, in which the triangle represents the projection range of the projector.

[0026] In the figure, 1 is a mobile vehicle, 11 is a mounting rack, 2 is a steel bar detection equipment, 3 is a projector, and 4 is a tunnel segment. DETAILED DESCRIPTION

[0027] The present application will be further described below in combination with the drawings and specific embodiments.

[0028] Please refer to the accompanying Figure 1 A tunnel steel lining reserved hole lofting device, comprising a mobile vehicle 1, a fusion projection assembly and a steel bar detection equipment 2; the mobile vehicle 1 is set on the track inside the tunnel and can move inside the tunnel along the track, the fusion projection assembly is arranged on the mobile vehicle 1, the fusion projection assembly stores the steel lining reserved hole drawing, and the output end of the fusion projection assembly is arranged to face the inner wall of the tunnel and project the steel lining reserved hole on the inner wall of the tunnel segment 4; the steel bar detection equipment 2 is arranged on the mobile vehicle 1, and the output end of the steel bar detection equipment 2 is arranged to face the inner wall of the tunnel segment 4.

[0029] The steel lining reserved hole position drawing is input into the fusion projection assembly, and the corresponding reserved hole position is projected onto the inner wall of the tunnel segment 4 through the fusion projection assembly, so that the reserved hole position on the tunnel segment 4 is quickly determined, and the work efficiency is greatly improved. The steel bar detection device 2 detects the position of the steel bar in the tunnel segment 4, so that the steel bar can be effectively avoided when determining the reserved hole position, the hole rate is improved, and the structure of the tunnel segment 4 is damaged.

[0030] The fusion projection assembly includes a fusion device (not shown in the figure) and a plurality of projectors 3. The fusion device stores the steel lining reserved hole position drawing. The output end of the fusion device is electrically connected to the input end of the plurality of projectors 3. The output end of the plurality of projectors 3 faces the inner wall of the tunnel segment 4 and projects the steel lining reserved hole position on the inner wall of the tunnel segment 4.

[0031] Preferably, a multi-channel splicing fusion device of HL-B100 or the like can be used, and the projector can use a laser projector of the prior art.

[0032] The multi-channel splicing fusion device can divide the steel lining reserved hole position drawing into multi-ring reserved hole position drawings according to the number of rings of the tunnel segment 4, and divide the reserved hole position drawing of each ring into a plurality of projection parts according to the number of projectors 3. Each of the plurality of projectors 3 projects a plurality of projection parts, so as to project the reserved hole position drawing of each ring onto the inner wall of the tunnel segment 4. The projection position can determine the reserved hole position on the tunnel segment 4.

[0033] The projection range of the plurality of projectors 3 is in a ring structure and covers the entire tunnel inner wall in a ring shape, so that each ring of the steel lining reserved hole position is projected on the inner wall of the tunnel segment 4 in a ring imaging form, ensuring effective coverage and projection of the entire tunnel segment 4 inner wall, reducing the projection overlap area, and ensuring the projection accuracy.

[0034] The plurality of projectors 3 are installed in a ring shape by the mounting frame 11, so that the output ends of the plurality of projectors 3 face the inner wall of the tunnel segment 4, and the mounting frame 11 is fixed on the mobile vehicle 1.

[0035] The mounting frame 11 can be welded into a rectangular frame structure by aluminum alloy or steel pipe, which is used to install the plurality of projectors 3 in a ring shape, so that the projection area of the plurality of projectors 3 is in a ring structure, matching the shape of the tunnel segment 4.

[0036] The center of the plurality of projectors 3 coincides with the center of the tunnel segment 4.

[0037] The plurality of projectors 3 divide the tunnel segment 4 into a plurality of arc-shaped segments, so as to project the corresponding projection part onto the plurality of arc-shaped segments, ensuring effective and accurate projection and reducing the projection overlap area.

[0038] Please refer to the attached drawings Figure 1 A method for lofting reserved hole positions of a tunnel steel lining, comprising the following steps:

[0039] Step 1: input the reserved hole position drawing of the steel lining into the fusion device of the fusion projection assembly according to the drawing.

[0040] The reserved hole position drawing of the steel lining can be input in its entirety, or the corresponding reserved hole position drawing of each ring of tunnel segments 4 can be input into the fusion device in sequence.

[0041] Step 2: move the mobile vehicle 1 with the fusion projection assembly and the steel bar detection device 2 along the track inside the tunnel to a ring of tunnel segments 4.

[0042] At this time, the centers of the several projectors 3 of the fusion projection assembly coincide with the center of the ring of tunnel segments 4.

[0043] Step 3: the several projectors 3 of the fusion projection assembly project the reserved hole positions of the steel lining onto the inner wall of the ring of tunnel segments 4.

[0044] Specifically, the fusion device of the fusion projection assembly divides the corresponding reserved hole position drawing of the ring of tunnel segments 4 on the reserved hole position drawing of the steel lining into several projection parts, and distributes the several projection parts to the several projectors 3, so that the several projectors 3 project the corresponding reserved hole positions of the ring of tunnel segments 4 onto the inner wall of the tunnel segments 4.

[0045] Preferably, four projectors 3 are provided, and the projection range of each projector 3 is about one-fourth of the ring of tunnel segments 4. The corresponding reserved hole positions of the ring of tunnel segments 4 are divided into four projection parts, and the four projection parts are projected by the four projectors 3 respectively, so that the four projection parts combine to cover the inner wall of the ring of tunnel segments 4, thereby determining the positions of the reserved hole positions on the inner wall of the ring of tunnel segments 4, i.e. the hole positions of the segments can be quickly determined by manual marking and the like.

[0046] Step 4: detect the steel bars inside the ring of tunnel segments 4 by the steel bar detection device 2.

[0047] Preferably, the steel bar detection device 2 can adopt an ultrasonic detection device, a Proceq GP8100 radar detection device and the like of the prior art, for accurately detecting the distribution of the steel bars inside the tunnel segments 4.

[0048] Step 5: adjust and mark the reserved hole positions on the tunnel segments 4 according to the projected positions of the reserved hole positions on the tunnel segments 4 and the positions of the steel bars inside the tunnel segments 4.

[0049] Specifically, according to the steel bar detection condition, if the reserved hole position projected on the tunnel segment 4 interferes with the internal steel bar, the position of the reserved hole position projected on the tunnel segment 4 is adjusted to ensure that each reserved hole position can be smoothly implanted with a bolt, and damage to the steel bar during bolt implantation is avoided.

[0050] After determining the reserved hole position on the ring tunnel segment 4 and the internal steel bar distribution condition, the internal steel bar position can be avoided when marking the reserved hole position, the reserved hole position distribution on the tunnel segment 4 is optimized, the hole rate can be increased by more than 30%, and the damage of bolt implantation to the structure of the tunnel segment 4 is effectively controlled.

[0051] According to the adjustment condition of the reserved hole position on the tunnel segment 4, the reserved hole position of the steel lining is secondarily optimized, the specification parameters of the reserved hole position of the steel lining are adjusted, and the accurate reserved hole position processing drawing of the steel lining can be obtained. According to the optimized reserved hole position processing drawing, the steel lining is processed to ensure that the processed steel lining can be accurately and effectively installed on the tunnel segment 4, and the steel bar in the tunnel segment 4 is effectively avoided during installation, thereby improving the hole rate.

[0052] Step 6: The mobile vehicle 1 drives the fusion projection assembly and the steel bar detection device 2 to move to the next ring tunnel segment 4 along the track inside the tunnel.

[0053] At this time, the ring center of the plurality of projectors 3 of the fusion projection assembly coincides with the center of the ring tunnel segment 4.

[0054] Step 7: Steps 3 to 6 are repeated until the marking and adjustment of the reserved hole position on the inner wall of all tunnel segments 4 are completed.

[0055] The above is only a preferred embodiment of the present application, and is not used to limit the protection scope of the application, therefore, any modification, equivalent replacement, improvement, etc. 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 staking out reserved holes for tunnel steel lining, characterized by: The invention comprises a mobile vehicle (1), a fusion projection component and a steel bar detection device (2); the mobile vehicle (1) is set on a track inside a tunnel and can move inside the tunnel along the track; the fusion projection component is arranged on the mobile vehicle (1); a steel lining reserved hole position drawing is stored in the fusion projection component; the output end of the fusion projection component is arranged facing the inner wall of the tunnel and projects the steel lining reserved hole position onto the inner wall of the tunnel segment (4); the steel bar detection device (2) is arranged on the mobile vehicle (1); the output end of the steel bar detection device (2) is arranged facing the inner wall of the tunnel segment (4); The fusion projection assembly includes a fusion device and a plurality of projectors (3), wherein a drawing of a reserved hole position of a steel lining is stored in the fusion device, an output end of the fusion device is electrically connected to an input end of the plurality of projectors (3), and the output ends of the plurality of projectors (3) are arranged facing the inner wall of a tunnel segment (4) and project the reserved hole position of the steel lining onto the inner wall of the tunnel segment (4); The fusion device divides the steel lining reserved hole position drawing into multiple rings of reserved hole position drawings according to the number of rings of the tunnel segment (4), and divides the reserved hole position drawing of each ring into a plurality of projection parts according to the number of projectors (3), and the plurality of projectors (3) respectively project the plurality of projection parts, thereby projecting the reserved hole position drawing of each ring onto the inner wall of the tunnel segment (4); The projection ranges of the plurality of projectors (3) are annular in structure and cover the entire inner wall of the tunnel in an annular direction, so that each reserved hole of the steel lining is projected on the inner wall of the tunnel segment (4) in the form of an annular image.

2. The tunnel steel lining reserved hole layout device according to claim 1 is characterized by: The plurality of projectors (3) are installed at intervals in a circumferential direction via a mounting frame (11), so that the output ends of the plurality of projectors (3) are respectively arranged facing the inner wall of the tunnel segment (4), and the mounting frame (11) is fixed on the mobile vehicle (1).

3. The tunnel steel lining reserved hole position layout device according to claim 2 is characterized by: The ring centers of the plurality of projectors (3) coincide with the centers of the tunnel segments (4).

4. A method for staking out reserved holes for tunnel steel linings using the device for staking out reserved holes for tunnel steel linings according to claim 1, characterized in that: The following steps are involved: Step 1: Input the reserved hole position drawing of the steel liner into the fusion device of the fusion projection assembly; Step 2: The mobile vehicle (1) drives the fusion projection assembly and the steel bar detection device (2) along the track inside the tunnel to a ring of tunnel segments (4); Step 3: A plurality of projectors (3) of the fusion projection assembly project the reserved hole positions of the steel lining onto the inner wall of the ring tunnel segment (4); The fusion device of the fusion projection assembly divides the reserved hole position drawing corresponding to the ring tunnel segment (4) on the reserved hole position drawing of the steel lining into a plurality of projection parts, and distributes the plurality of projection parts to a plurality of projectors (3), so that the plurality of projectors (3) project the reserved hole position corresponding to the ring tunnel segment (4) onto the inner wall of the tunnel segment (4); Step 4: Detecting the steel bars in the ring tunnel segment (4) using a steel bar detection device (2); Step 5: adjusting and marking the reserved hole positions on the tunnel segment (4) according to the projected positions of the reserved hole positions on the tunnel segment (4) and the positions of the steel bars in the tunnel segment (4); According to the adjustment of the reserved hole positions on the tunnel segment (4), the reserved hole positions of the steel lining are optimized for a second time, the specification parameters of the reserved hole positions of the steel lining are adjusted, and an accurate processing drawing of the reserved hole positions of the steel lining is obtained; and the steel lining is processed according to the optimized processing drawing of the reserved hole positions; Step 6: The mobile vehicle (1) drives the fusion projection assembly and the steel bar detection device (2) along the track inside the tunnel to the next ring tunnel segment (4); Step 7: Repeat steps 3 to 6 until all reserved hole positions on the inner wall of the tunnel segments (4) are marked and adjusted.

5. The lofting method according to claim 4, wherein: In the steps 2 and 6, the center of the ring of the plurality of projectors (3) of the fusion projection assembly coincides with the center of the ring tunnel segment (4).

Images