Tunnel primary support flatness and springback material control mold spraying trolley

Abstract

The invention provides a tunnel primary support flatness and springback material control mold spraying trolley which comprises a frame, a walking system and a multidirectional adjusting system, the multidirectional adjusting system comprises a translation device and a vertical adjusting mechanism, the translation device comprises a translation oil cylinder, the vertical adjusting mechanism comprises a jacking cylinder, the lower end of the jacking cylinder is installed on a base, and the lower end of the jacking cylinder is installed on the base. A jacking seat is mounted at the tail end of a cylinder rod of the jacking cylinder, the jacking seat is fixed on the frame, and a reinforcing plate is arranged between the jacking seat and the frame; the frame comprises two annular track beams which are arranged side by side, and a plurality of connecting beams are arranged between the two annular track beams at intervals; longitudinal beams are arranged at the top ends of the two annular track beams, and adjusting mechanisms used for adjusting the paving formworks are arranged on the longitudinal beams. The height and the position of the frame can be flexibly adjusted according to use requirements, the paving formwork can be conveniently adjusted to be in a horizontal state through the adjusting mechanism, and on the premise that it is guaranteed that the primary supporting flatness meets the requirement, springback materials are reduced, and the construction progress is accelerated.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel construction, and in particular relates to a tunnel initial support flatness and rebound material control mold spraying trolley. Background Art

[0002] The construction process of initial tunnel support includes initial spraying of concrete after excavation, system support construction (anchor rods, steel mesh, steel frame) and re-spraying of concrete to the designed thickness. During the construction process, the steel arch frame is one of the important components of the initial tunnel support, which is mainly used to support the load on the top of the tunnel and improve the overall stability of the tunnel. However, not all initial tunnel supports require the use of steel arch frames, especially in some specific construction sections or conditions, steel arch frames can be used for support without them. For example, when encountering a fault-broken section with severe water seepage, drainage should be carried out in time before the initial support is applied to prevent the occurrence of landslides. In this case, after the initial support spraying is completed, the number of blind pipes can be increased when the invert is constructed to improve the drainage capacity, and the use of steel arch frames is not necessarily required. In the prior art, most of the initial tunnel support sections without arch frames have different degrees of poor initial support flatness and a lot of rebound materials. Therefore, it is necessary to improve the construction defects. Summary of the invention

[0003] In view of this, the invention aims to overcome the defects in the prior art and proposes a tunnel initial support flatness and rebound material control mold spraying trolley.

[0004] To achieve the above object, the technical solution created by the present invention is implemented as follows:

[0005] A tunnel initial support flatness and rebound material control mold spraying trolley, including a frame, a walking system and a multi-directional adjustment system, the multi-directional adjustment system includes a translation device and a vertical adjustment mechanism, the translation device includes a translation cylinder, the vertical adjustment mechanism includes a jacking cylinder, the lower end of the jacking cylinder is installed on a base, the end of the cylinder rod of the jacking cylinder is installed with a jacking seat, the jacking seat is fixed to the frame, and a reinforcement plate is provided between the jacking seat and the frame; the frame includes two annular track beams arranged side by side, and a plurality of connecting beams are provided between the two annular track beams; longitudinal beams are provided at the top ends of the two annular track beams, and an adjustment mechanism for adjusting the paving template is provided on the longitudinal beam.

[0006] Furthermore, the template adjustment mechanism includes two adjustment cylinders symmetrically arranged on the longitudinal beam.

[0007] Furthermore, a trolley is provided on each annular track beam.

[0008] Furthermore, the adjustment range of the lifting cylinder is 600mm-1200mm.

[0009] Furthermore, plugging templates are respectively provided on both sides of the paving template, and the plugging templates are made of steel templates.

[0010] Furthermore, the plug template is driven by an angle adjustment mechanism, which is installed on the base frame. One end of the plug template is hinged to the base frame. The angle adjustment mechanism drive includes an angle adjustment cylinder. The extending rod end of the angle adjustment cylinder is hinged to the plug template, and the cylinder body end is hinged to the base frame.

[0011] Furthermore, both the base frame and the plug template are provided with an articulated seat which is hinged to the angle adjustment cylinder.

[0012] Furthermore, the traveling system includes a hydraulically driven wheel installed at the bottom of the frame.

[0013] Furthermore, the paving template is made of stainless steel.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] The tunnel initial support flatness and rebound material control mold spraying trolley provided by the invention can flexibly adjust the frame height and position according to the use needs, and can conveniently adjust the paving template to a horizontal state through the adjustment mechanism. It can reduce rebound material and speed up the construction progress while ensuring that the initial support flatness meets the requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the structure created by the present invention;

[0018] Figure 2 A schematic diagram of the sideways direction is created for the present invention;

[0019] Figure 3 It is a schematic diagram of the plug template part in the invention. DETAILED DESCRIPTION

[0020] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the invention can be understood according to specific circumstances.

[0023] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0024] A tunnel initial support flatness and rebound material control mold spraying trolley, such as Figures 1 to 3 As shown, it includes a frame 1, a walking system 2 and a multi-directional adjustment system 3, the multi-directional adjustment system includes a translation device 4 and a vertical adjustment mechanism 5, the translation device includes a translation cylinder, the vertical adjustment mechanism includes a lifting cylinder, the lower end of the lifting cylinder is installed on the base 6, the end of the cylinder rod of the lifting cylinder is installed with a lifting seat 7, the lifting seat is fixed to the frame, and a reinforcing plate 8 is provided between the lifting seat and the frame; the frame includes two annular track beams 9 arranged side by side, and a plurality of connecting beams 10 are provided between the two annular track beams; a longitudinal beam 11 is provided at the top of the two annular track beams, and an adjustment mechanism 12 for adjusting the paving template is provided on the longitudinal beam.

[0025] The template adjustment mechanism includes two adjustment cylinders symmetrically arranged on the longitudinal beam. A trolley is provided on each annular track beam. The adjustment range of the jacking cylinder is 600mm-1200mm. Both the base frame and the plug template are provided with an articulated seat articulated with the angle adjustment cylinder. The walking system includes a hydraulic drive wheel installed at the bottom of the frame. The paving template is made of stainless steel.

[0026] In an optional embodiment, plug templates 13 are respectively provided on both sides of the paving template, and the plug template is made of steel template. The plug template is driven by an angle adjustment mechanism 14, which is installed on a base frame 15, one end of the plug template is hinged to the base frame, and the angle adjustment mechanism driving includes an angle adjustment cylinder, the extended rod end of the angle adjustment cylinder is hinged to the plug template, and the cylinder end is hinged to the base frame.

[0027] The tunnel initial support flatness and rebound material control mold spraying trolley provided by the invention can flexibly adjust the frame height and position according to the use needs, and can conveniently adjust the paving template to a horizontal state through the adjustment mechanism. It can reduce rebound material and speed up the construction progress while ensuring that the initial support flatness meets the requirements.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, 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. A tunnel initial support flatness and rebound material control mold spraying trolley, characterized by: It includes a frame, a traveling system and a multi-directional adjustment system, which includes a translation device and a vertical adjustment mechanism. The translation device includes a translation cylinder, and the vertical adjustment mechanism includes a lifting cylinder. The lower end of the lifting cylinder is installed on a base, and a lifting seat is installed at the end of the cylinder rod of the lifting cylinder. The lifting seat is fixed to the frame, and a reinforcement plate is provided between the lifting seat and the frame; the frame includes two annular track beams arranged side by side, and a plurality of connecting beams are provided between the two annular track beams; longitudinal beams are provided at the top ends of the two annular track beams, and an adjustment mechanism for adjusting the paving template is provided on the longitudinal beams.

2. According to claim 1, a tunnel initial support flatness and rebound material control mold spraying trolley is characterized by: The template adjustment mechanism comprises two adjustment cylinders symmetrically arranged on the longitudinal beam.

3. According to claim 1, a tunnel initial support flatness and rebound material control mold spraying trolley is characterized by: A trolley is provided on each circular track beam.

4. According to claim 1, a tunnel initial support flatness and rebound material control mold spraying trolley is characterized by: The adjustment range of the lifting cylinder is 600mm-1200mm.

5. The tunnel initial support flatness and rebound material control mold spraying trolley according to claim 1, characterized in that: The traveling system includes hydraulically driven wheels mounted at the bottom of the frame.

6. The tunnel initial support flatness and rebound material control mold spraying trolley according to claim 1, characterized in that: Plug templates are respectively provided on both sides of the paving template.

7. A tunnel initial support flatness and rebound material control mold spraying trolley according to claim 6, characterized in that: The plug template is a steel template.

8. The tunnel initial support flatness and rebound material control mold spraying trolley according to claim 1, characterized in that: The paving template is made of stainless steel.

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