Transparent light tunnel secondary lining trolley template

Abstract

The utility model relates to a transparent light tunnel secondary lining trolley formwork which comprises a plurality of first side formworks, second side formworks and third side formworks which are arranged in a bilateral symmetry mode and a plurality of fourth top formworks arranged between the third side formworks on the left side and the right side. The first side dies, the second side dies and the third side dies are sequentially arranged along the bottom of the trolley main frame from bottom to top, the fourth top dies are arranged on the top of the trolley main frame, each first side die, each second side die, each third side die and each fourth top die are connected to the trolley main frame through spiral supporting rods, and a reserved pipeline opening is reserved in the top die formed after the fourth top dies are spliced. The trolley is segmented into a plurality of templates along the circumferential direction and is made of transparent and light fiberglass materials, so that the templates are convenient to produce, process and transport, the production cost is low, the assembled trolley is light in weight and high in flexibility, frequent movement or transition is greatly facilitated, the hidden engineering construction condition can be observed in real time during construction, and the hidden engineering construction efficiency is improved. Abnormalities can be found and corrected in time, and reworking is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel lining equipment, in particular to a transparent and lightweight tunnel secondary lining trolley template. Background Art

[0002] During tunnel construction, secondary lining is carried out after excavation and initial support are completed. This requires a secondary lining trolley formwork. While conventional tunnel trolley formwork is constructed from welded steel plates, it is durable and wear-resistant. However, it also suffers from limitations such as being heavy, time-consuming to assemble, and lacks visibility. For concealed projects like tunnel concrete pouring, traditional formwork cannot monitor rebar positioning and concrete pouring in real time, preventing timely detection and correction of anomalies and thus hindering tunnel construction quality. Utility Model Content

[0003] In order to solve the shortcomings of the traditional tunnel secondary lining trolley, the utility model provides a transparent and lightweight tunnel secondary lining trolley template.

[0004] The specific technical solution of the utility model is: a transparent and lightweight tunnel secondary lining trolley template, including several first side molds, second side molds and third side molds that are symmetrically arranged on the left and right, and several fourth top molds arranged between the left and right third side molds. The first side molds, the second side molds and the third side molds are arranged in sequence from bottom to top along the bottom of the trolley main frame, and the fourth top mold is arranged on the top of the trolley main frame. Each of the first side molds, the second side molds, the third side molds and the fourth top mold is connected to the trolley main frame through a spiral strut, and a reserved pipe opening is reserved on the top mold after several pieces of the fourth top molds are spliced.

[0005] Furthermore, preferably, the first side mold, the second side mold, the third side mold and the fourth top mold are all made of fiberglass.

[0006] Furthermore, preferably, the joints between the first side mold, the second side mold, the third side mold and the fourth top mold are filled with glass glue.

[0007] Furthermore, preferably, the joint seam is tapered.

[0008] Furthermore, preferably, a walking mechanism is provided at the bottom of the trolley main frame.

[0009] The beneficial effects of the present invention are as follows: the tunnel secondary lining trolley template provided by the present invention is segmented into several templates along the circumferential direction, and adopts transparent and lightweight fiber glass material. Such a design facilitates the production, processing and transportation of the template, and has low production cost. The assembled trolley is light in weight and highly flexible, which is extremely convenient for frequent movement or transfer. During construction, the construction conditions of concealed projects such as steel bar positioning and concrete pouring can be observed in real time, which is conducive to discovering abnormalities and correcting them in time to avoid rework. In addition, the fiber glass has good smoothness, which is conducive to improving the appearance of the secondary lining concrete. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a front view of a transparent and lightweight tunnel secondary lining trolley template according to an embodiment;

[0011] Figure 2 A top view of a transparent and lightweight tunnel secondary lining trolley template according to an embodiment;

[0012] Figure 3 for Figure 2 Schematic diagram of the structure of the splicing seam;

[0013] In the figure: 1-first side mold, 2-second side mold, 3-third side mold, 4-fourth top mold, 5-trolley main frame, 6-spiral support rod, 7-travel mechanism, 8-reserved pipe opening. DETAILED DESCRIPTION

[0014] In order to make the technical problems and technical solutions solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0015] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0016] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integrated connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this utility model based on the specific circumstances.

[0017] like Figure 1 Figure 2 As shown, this embodiment provides a transparent and lightweight tunnel secondary lining trolley formwork, including a plurality of first side forms 1, second side forms 2, and third side forms 3 that are symmetrically arranged on the left and right sides, and a plurality of fourth top forms 4 that are arranged between the third side forms 3 on the left and right sides. The first side form 1, the second side form 2, and the third side form 3 are arranged in sequence from bottom to top along the bottom of the trolley main frame 5, and the fourth top form 4 is arranged on the top of the trolley main frame 5. Each of the first side form 1, the second side form 2, the third side form 3, and the fourth top form 4 is connected to the trolley main frame 5 through a spiral strut 6. A walking mechanism 7 is provided at the bottom of the trolley main frame 5. A reserved pipe opening 8 is reserved on the top formwork after the plurality of fourth top forms 4 are spliced ​​together. The reserved pipe opening 8 is used for concrete grouting, exhaust, and observation.

[0018] As a preferred embodiment of this embodiment, the first side mold 1, the second side mold 2, the third side mold 3 and the fourth top mold 4 are all made of fiberglass, and the joints 9 between the first side mold 1, the second side mold 2, the third side mold 3 and the fourth top mold 4 are filled with strong glass glue. This embodiment uses fiberglass instead of steel plate as the trolley template, which has very good properties. First, its density is 1.92g / cm 3 , which is only a quarter of the weight of iron. As a formwork for the secondary lining trolley of the tunnel, it can greatly reduce the overall weight of the trolley, increase its flexibility, and greatly facilitate frequent movement or transfer; secondly, it has good rigidity and can provide sufficient support; thirdly, it has good transparency and can achieve complete perspective, which is convenient for observing the position of steel bars, concrete pouring and other concealed construction conditions during construction, and correct any abnormalities in time without waiting until the formwork is removed to rework; fourthly, it is significantly more economical than steel, accounting for only about half of the cost of steel, which can greatly reduce manufacturing costs; fifthly, it has good smoothness, which is beneficial to improving the appearance of the secondary lining concrete.

[0019] Further, such as Figure 3 As shown, since each template is an arc-shaped plate, the joint seams 9 between the templates are tapered, and the joints are more secure.

[0020] Since different road grades have different tunnel clear widths, this embodiment uses a clearance of width D = 10.5m and height H = 5.5m as an example for explanation. The specific assembly method of the template is as follows:

[0021] 1. According to the tunnel construction drawings, the secondary lining trolley is divided into seven sections with different curvatures and arc lengths. The left and right sides are symmetrically divided into the first, second, and third sections from bottom to top, and the top is set as the fourth section. The arc lengths of each section are: L1 = 2.7m for the first section, L2 = 3.5m for the second section, L3 = 3.5m for the third section, and L4 = 3.6m for the fourth section.

[0022] 2. The first side mold 1, the second side mold 2, the third side mold 3 and the fourth top mold 4 are customized and produced in the glass manufacturing plant. The first side mold 1, the second side mold 2, the third side mold 3 and the fourth top mold 4 are respectively arranged at the first section, the second section, the third section and the fourth section.

[0023] 3. When processing fiberglass templates, the template width is 1.5m, so that the first side mold 1, the second side mold 2, the third side mold 3 and the fourth top mold 4 are all produced in 6 pieces, and then Figure 2 The trolley of longitudinal length 9m can be obtained by assembling as shown. During assembly, the joint seams 9 between the templates are filled with strong glass glue to connect them into a whole.

[0024] 4. A spiral strut 6 is connected to the inner surface of each template, and the other end of the spiral strut 6 is connected to the trolley main frame 5, so that the template and the trolley main frame 5 are connected as one.

[0025] 5. After assembly is completed, check and calibrate to ensure that the trolley template surface is completely consistent with the tunnel cross section. It can be put into use after passing the inspection.

[0026] The tunnel secondary lining trolley template provided in this embodiment is divided into several templates along the circumferential direction and is made of transparent, lightweight fiberglass material. This design facilitates the production, processing and transportation of the template, and has low production costs. The assembled trolley is light in weight and is extremely convenient for frequent movement or transfer. During construction, the position of steel bars, concrete pouring and other hidden engineering construction conditions can be observed in real time, which is conducive to discovering abnormalities and correcting them in time to avoid rework. In addition, fiberglass has good smoothness, which is conducive to improving the appearance of the secondary lining concrete. Based on these advantages, this transparent and lightweight trolley template will be widely used in various tunnel construction projects to improve construction efficiency and improve the quality of concrete pouring.

[0027] The present invention is described in detail above through specific and preferred embodiments, but those skilled in the art should understand that the present invention is not limited to the embodiments described above. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A transparent and lightweight tunnel secondary lining trolley template, characterized by: The invention comprises a plurality of first side molds (1), second side molds (2) and third side molds (3) symmetrically arranged on the left and right sides, and a plurality of fourth top molds (4) arranged between the third side molds (3) on the left and right sides, wherein the first side molds (1), the second side molds (2) and the third side molds (3) are arranged in sequence from bottom to top along the bottom of the trolley main frame (5), and the fourth top mold (4) is arranged on the top of the trolley main frame (5). Each of the first side molds (1), the second side molds (2), the third side molds (3) and the fourth top mold (4) is connected to the trolley main frame (5) through a spiral support rod (6), and a reserved pipe opening (8) is reserved on the top mold after the plurality of fourth top molds (4) are spliced.

2. The transparent and lightweight tunnel secondary lining trolley template according to claim 1 is characterized by: The first side mold (1), the second side mold (2), the third side mold (3) and the fourth top mold (4) are all made of fiberglass.

3. The transparent and lightweight tunnel secondary lining trolley template according to claim 2 is characterized by: The joints (9) between the first side mold (1), the second side mold (2), the third side mold (3) and the fourth top mold (4) are filled with glass glue.

4. The transparent and lightweight tunnel secondary lining trolley template according to claim 3 is characterized by: The joint seam (9) is tapered.

5. The transparent and lightweight tunnel secondary lining trolley template according to claim 1 is characterized by: A walking mechanism (7) is provided at the bottom of the trolley main frame (5).

Images