Comprehensive cavern arc-shaped chamfer one-time optimization tool
By using pre-formed bendable rubber chamfered units in tunnel construction, combined with high-strength adhesive and structural design, the problem of weak links in concrete chamfers in tunnel construction is solved, and the quality of concrete molding and structural stability are achieved.
Patent Information
- Application Number
- CN202421523096.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-06-28
AI Technical Summary
During tunnel construction, the concrete easily forms weak links at the angle formed by the lining of the arch wall of the comprehensive cave chamber and the lining of the main cave, which is easily damaged and not beautiful, and cannot be repaired in the later stage, resulting in concrete defects.
A comprehensive cavernous chamber arc-shaped chamfering unit is adopted, including a rubber chamfering unit prefabricated through an arc mold, which can be bent and adjusted according to the arc of the comprehensive cavernous chamber and bonded to the comprehensive cavernous chamber formwork through a high-strength adhesive. Combined with the design of tightening bolts and long steel sheets, the rubber chamfering unit is fixed to ensure the quality of concrete molding.
The concrete quality of the cavernous position molded at the chamfered position of the tunnel and the tunnel is achieved at one time, eliminating the phenomenon of concrete forming defects at the chamfered position, saving the cost of post-treatment of the cavernous defects, and being simple in structure and easy to use.
Smart Images
Figure CN222782645U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tunnel construction, in particular to a one-time excellent tooling for comprehensive cavern arc chamfering. Background Art
[0002] When a tunnel has multiple RUU, extra-long cavity and other types of integrated caverns, the integrated cavern arch wall lining is prone to form an angle with the main tunnel lining. After demolding, the finished concrete at the angle is prone to form a weak link, which is easy to break and unsightly. At the same time, it cannot be repaired later, resulting in concrete defects. In view of this, the present application provides a one-time excellent tooling for integrated cavern arc chamfering. Utility Model Content
[0003] In order to solve the above technical problems, the utility model proposes a comprehensive cavern arc chamfering one-time optimal tooling.
[0004] The technical solution of the utility model is achieved in this way:
[0005] A one-time high-quality tooling for arc chamfering of a comprehensive cavern comprises a rubber chamfering unit, which is prefabricated by an arc-shaped mold and can be bent and adjusted according to the curvature of the comprehensive cavern, wherein the rubber chamfering unit is used to be installed on a template of the comprehensive cavern.
[0006] Furthermore, the rubber chamfering unit is bonded to the integrated cavern formwork by a high-strength adhesive.
[0007] Furthermore, a tightening bolt is provided on the inner side surface of the rubber chamfer unit, and a mounting hole is correspondingly provided on the integrated cavern template, and the tightening bolt passes through the mounting hole and then a tightening nut is installed.
[0008] Furthermore, a long steel sheet is arranged inside the rubber chamfer unit, a through hole for the tightening bolt to pass through is arranged on the inner side surface of the rubber chamfer unit, and the outer end of the tightening bolt is fixedly connected to the long steel sheet.
[0009] Furthermore, a through hole is provided on one side of the inner side surface of the rubber chamfering unit, and one through hole is provided corresponding to both ends of the long steel sheet, and one of the through holes is connected to the through hole, one end of the long steel sheet is bent inward and enters the through hole, and the tightening bolt located on one side of the through hole is fixedly connected to the bent end of the long steel sheet.
[0010] The utility model has the following beneficial effects:
[0011] The quality of concrete formed at the chamfered positions of the cavern and the tunnel secondary lining is improved in one go, defects in the concrete at the chamfered positions are eliminated, the cost of later processing of cavern defects is saved, and the structure is simple and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of Embodiment 1 of the present utility model;
[0013] Figure 2 It is a schematic diagram of Embodiment 2 of the present utility model;
[0014] Figure 3 It is a schematic diagram of the rubber chamfering unit in Embodiment 2 of the present utility model;
[0015] Figure 4 It is a schematic diagram of Embodiment 4 of the present utility model;
[0016] Figure 5 This utility model Figure 4 Enlarged view of point A in . DETAILED DESCRIPTION
[0017] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0018] Please refer to Figure 1 The first embodiment of the present invention is a one-step tooling for arc chamfering of a comprehensive cavern, comprising a rubber chamfering unit 1, which is prefabricated by an arc mold and can be bent and adjusted according to the arc of the comprehensive cavern, wherein the rubber chamfering unit 1 is used to be installed on the template of the comprehensive cavern. The rubber chamfering unit 1 is bonded to the template of the comprehensive cavern by a high-strength adhesive.
[0019] Before installing the rubber chamfering unit 1, the chamfered position of the integrated cavern template is first polished and cleaned, and then the rubber chamfering unit 1 is directly bonded to the chamfered position of the integrated cavern template using a high-strength adhesive.
[0020] Specifically, the rubber chamfering unit 1 has good wear resistance, high elasticity, good strength and elongation, good sealing performance in use, strong pressure resistance and not easy to deform, high alkali resistance and not easy to oxidize, high reusability and not easy to harden and degenerate.
[0021] By applying the rubber chamfering unit 1, rapid and accurate positioning of the hyperbolic model chamfering device is achieved. By applying a high-strength adhesive, the rubber chamfering unit 1 can be effectively fixed to ensure that the position of the rubber chamfering unit 1 is fixed during the pouring process, so that the quality of the molded concrete is excellent at one time, the cavern is clean and complete outside, and the phenomenon of defects in the concrete at the chamfer position of the cavern is eliminated.
[0022] Please refer to Figure 2 and Figure 3 In Example 2, a tightening bolt 2 is provided on the inner side of the rubber chamfering unit 1, and a mounting hole is correspondingly provided on the integrated cavern template. The tightening bolt 2 passes through the mounting hole and then the tightening nut 3 is installed. By using the cooperation between the tightening bolt 2 and the tightening nut 3, the rubber chamfering unit 1 is fixed on the integrated cavern template, so that the rubber chamfering unit 1 is easy to install and disassemble. Specifically, a plurality of tightening bolts 2 are equidistantly provided along the length direction of the rubber chamfering unit 1.
[0023] Please refer to Figure 4 and Figure 5 In Example 3, a long steel sheet 4 is arranged inside the rubber chamfering unit 1, a through hole 5 for the tightening bolt 2 to pass through is arranged on the inner side of the rubber chamfering unit 1, and the outer end of the tightening bolt 2 is fixedly connected to the long steel sheet 4.
[0024] Specifically, a long strip groove is provided in the rubber chamfering unit 1, and the long strip steel sheet 4 is located in the long strip groove. The long strip steel sheet 4 basically covers the inner side surface of the rubber chamfering unit 1 in the length direction, and a plurality of tightening bolts 2 are provided along the length direction of the long strip steel sheet 4.
[0025] When installing the rubber chamfering unit 1, the tightening bolt 2 is passed through the through hole 6 on the integrated cavern template, and then the long steel sheet 4 is pulled inward by using the tightening nut 3 and the tightening bolt 2. The long steel sheet 4 applies pressure to the inner wall of the rubber chamfering unit 1, so that the rubber chamfering unit 1 can be tightly attached to the integrated cavern template, further improving the sealing performance.
[0026] A through hole 6 is provided on one side of the inner side surface of the rubber chamfering unit 1, and a through hole 5 is provided corresponding to each end of the long steel sheet 4, and one of the through holes 5 is connected to the through hole 6. One end of the long steel sheet 4 is bent inward and enters the through hole 6, and the tightening bolt 2 located on one side of the through hole 6 is fixedly connected to the bent end of the long steel sheet 4.
[0027] Specifically, two tightening bolts 2 are provided, and the two tightening bolts 2 are provided corresponding to the two ends of the long steel sheet 4. When installing the rubber chamfering unit 1, the tightening bolt 2 at one end of the long steel sheet 4 away from the through hole 6 is first tightened by the tightening nut 3, and then the tightening bolt 2 located on one side of the through hole 6 is tightened by the other tightening nut 3. The tightening bolt 2 will pull the long steel sheet 4 outward. In this process, the inner wall surface of the rubber chamfering unit 1 will be pressed against the integrated cavern template.
[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 principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A comprehensive cavern arc chamfering one-time excellent tooling, characterized in that: It comprises a rubber chamfering unit (1), wherein the rubber chamfering unit (1) is prefabricated by means of an arc-shaped mold, and the rubber chamfering unit (1) can be bent and adjusted according to the curvature of the integrated cavity, wherein the rubber chamfering unit (1) is used to be installed on the integrated cavity template.
2. The one-step forming tool for comprehensive cavern arc chamfering according to claim 1 is characterized in that: The rubber chamfering unit (1) is bonded to the integrated cavern formwork by means of a high-strength adhesive.
3. The one-step forming tool for comprehensive cavern arc chamfering according to claim 1 is characterized in that: The inner side surface of the rubber chamfer unit (1) is provided with a tightening bolt (2), and a mounting hole is correspondingly provided on the integrated cavern template. The tightening bolt (2) passes through the mounting hole and then a tightening nut (3) is installed.
4. The one-step forming tool for comprehensive cavern arc chamfering according to claim 3 is characterized in that: A long steel sheet (4) is arranged inside the rubber chamfer unit (1), a through hole (5) for the tightening bolt (2) to pass through is arranged on the inner side surface of the rubber chamfer unit (1), and the outer end of the tightening bolt (2) is fixedly connected to the long steel sheet (4).
5. The one-step forming tool for comprehensive cavern arc chamfering according to claim 4 is characterized in that: A through hole (6) is provided on one side of the inner side surface of the rubber chamfer unit (1), one through hole (5) is provided corresponding to each of the two ends of the long steel sheet (4), and one of the through holes (5) is connected to the through hole (6), one end of the long steel sheet (4) is bent inwardly and enters the through hole (6), and the tightening bolt (2) located on one side of the through hole (6) is fixedly connected to the bent end of the long steel sheet (4).