Shield hydraulic tunnel template

Abstract

The utility model belongs to the field of shield tunnel construction of hydraulic engineering, and particularly relates to a shield hydraulic tunnel template. The shield hydraulic tunnel formwork transfer system solves the problem of shield hydraulic tunnel formwork transfer and comprises an end formwork system I, a central formwork system II, a central formwork system III and an end formwork system IV, the end formwork system I, the central formwork system II, the central formwork system III and the end formwork system IV are connected through wedge-shaped plates, and the end formwork system I and the end formwork system IV are arranged at the two ends respectively. The central formwork system II and the central formwork system III are arranged between the end formwork system I and the end formwork system IV, and pouring windows and pumping ports are formed in the outer sides of the end formwork system I, the central formwork system II, the central formwork system III and the end formwork system IV. Top formwork supporting frameworks and bottom formwork supporting frameworks are arranged in the end formwork system I, the central formwork system II, the central formwork system III and the end formwork system IV and used for supporting.

Description

Technical Field

[0001] The utility model belongs to the field of shield tunnel construction of water conservancy projects, in particular to a shield hydraulic tunnel template. Background Art

[0002] In recent years, with the development of my country's infrastructure, the number of full-circle tunnels has gradually increased, especially the water diversion and water supply tunnels. Compared with urban subway shield tunnels, the full-circle tunnels for water diversion and water supply have a small cross-section and a small turning radius. When pouring secondary lining concrete, it is more difficult for the lining trolley to change between straight sections and curved sections.

[0003] The use of circular needle beam lining trolleys for full-circle tunnel lining construction can ensure the integrity of the lining concrete. The existing needle beam trolleys are of the following types:

[0004] 1. Lining trolley with a straight longitudinal axis: It has excellent adaptability when constructing straight sections, but when constructing curved sections, the lining trolley cannot fit well with the curved sections. Therefore, in curved sections, especially those with small radius, it is necessary to reduce the length of concrete poured by the lining trolley at one time to avoid excessive deviation in lining thickness on both sides, which will fail to meet design and specification requirements.

[0005] 2. Lining trolley with wedge-shaped plates can be added: When constructing curved sections, the needle beam and formwork are disassembled and wedge-shaped plates are installed to adapt to the curved sections.

[0006] 3. Rotary form lining trolley: The lining trolley template is made into a trapezoid. When constructing a straight section, the lining trolley template is connected to the long side and the short side of the trolley template to make the lining trolley template a straight line; when constructing a curved section, the lining trolley template is connected to the long side and the long side of the lining trolley template to make the lining trolley template a curve by rotating the template (see CN202110647452.9 for details).

[0007] The traditional straight-line needle beam lining trolley has the following problems:

[0008] 1. During the construction of curved sections, in order to ensure the thickness of the lining, the length of the lining cannot be too long at one time. The lining concrete is divided into many sections, there are many construction joints, and the quality risk is high;

[0009] 2. The amount of work required to erect formwork and carry out waterproofing is large;

[0010] 3. The lining times are many, the progress is slow, and the labor and equipment costs are high.

[0011] 4. Because the lining concrete is divided into many sections, construction interference is large and construction organization is difficult.

[0012] The traditional broken line lining trolley with wedge-shaped plates has the following problems:

[0013] 1. The steps of disassembling the needle beam and installing the wedge plate are complicated. Repeated disassembly and assembly affect the accuracy of the lining trolley. The trolley parts are prone to local deformation, which affects the service life.

[0014] 2. The installation and removal of wedge-shaped formwork takes a long time, which affects the construction progress and has high labor costs.

[0015] The rotary form lining trolley has the following problems:

[0016] 1. Two sets of top pumping ports need to be installed, and the concrete pouring window can only be opened and closed horizontally, which is quite different from the traditional concrete pouring operation habits.

[0017] 2. The center of rotation of the template is located at the center of the template system, so counterweights are required to keep the center of gravity stable.

[0018] 3. The rotating formwork system has many components, including the hydraulic system. When the formwork rotates, the hydraulic system operating the formwork must also rotate with the formwork. Each set of formwork requires a hydraulic system. Therefore, multiple sets of independent closed hydraulic systems are required to prevent interference with each other during rotation. Therefore, multiple independent hydraulic operating systems are required. When rotating the formwork, multiple people are required to operate the hydraulic system in coordination, which makes the operation difficult.

[0019] 4. When adjusting the trolley line type, the entire formwork system needs to be rotated. The structure to be rotated is heavy, and all workers in the formwork need to be evacuated before rotation, and all construction tools must be cleaned up to avoid various accidents after rotation, which will cause great interference to construction.

[0020] Due to the construction requirements of the tunnel, a template needs to be designed to facilitate transportation. Utility Model Content

[0021] The utility model provides a shield hydraulic tunnel template to solve the problem of shield hydraulic tunnel template transportation.

[0022] The utility model adopts the following technical scheme: a shield hydraulic tunnel template, comprising an end template system I, a central template system II, a central template system III and an end template system IV, the end template system I, the central template system II, the central template system III and the end template system IV are all fully circular, the end template system I, the central template system II, the central template system III and the end template system IV are connected by a wedge plate, wherein the end template system I and the end template system IV are respectively arranged at two ends, the central template system II and the central template system III are arranged between the end template system I and the end template system IV, the end template system I, the central template system II, the central template system III and the end template system IV are provided with casting windows and pumping ports on the outside, and the end template system I, the central template system II, the central template system III and the end template system IV are provided with top template support skeletons and bottom template support skeletons inside for support.

[0023] In some embodiments, the end formwork system I, the central formwork system II, the central formwork system III (9) and the end formwork system IV are all provided with formwork stiffening ribs, end panels are provided at both ends, and the end panels are provided with formwork end panel positioning holes.

[0024] In some embodiments, the end formwork system I, the central formwork system II, the central formwork system III and the end formwork system IV have the same structure, including a top formwork, a bottom formwork and two side forms.

[0025] In some embodiments, the arc lengths of the top mold and the bottom mold are consistent, and the end panels of the top mold and the bottom mold are symmetrical to each other up and down, and the arc lengths of the two side molds are consistent and symmetrical to each other left and right.

[0026] In some embodiments, the template end panel positioning holes of the top mold and the bottom mold are symmetrical on both sides with the center of the template as the axis of symmetry, and the positions of the template end panel positioning holes of the top mold and the template end panel positioning holes of the bottom mold are consistent; the template end panel positioning holes of the two side molds are symmetrical on both sides with the center of the side molds as the axis of symmetry, and the positions of the template end panel positioning holes on the left and right side molds are consistent.

[0027] In some embodiments, the top mold is fixed to the sliding frame by a top mold support frame, and the sliding frame is a rectangular frame structure arranged in the end mold system I, the central mold system II, the central mold system III and the end mold system IV. Two side molds are hinged on both sides of the top mold, and their opening and closing are controlled by side mold opening and closing cylinders. One end of the side mold opening and closing cylinder is hinged to the end sliding frame, and the other end is hinged to the side mold; a bottom mold support frame is arranged in the bottom mold, and the lifting and lowering of the bottom mold is controlled by the bottom mold adjusting cylinder. One end of the bottom mold adjusting cylinder is fixed to the bottom of the sliding frame, and the other end is connected to the bottom mold support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 The structure diagram of the template system at both ends is shown in Figure I;

[0029] Figure 2 The structural diagram of the two-end template system is II;

[0030] Figure 3 It is the side view of the template system at both ends;

[0031] Figure 4 It is the structural diagram of the central template system I;

[0032] Figure 5 It is the structural diagram of the central template system II;

[0033] Figure 6 It is the side view of the central formwork system;

[0034] Figure 7 This is a side view of the formwork system. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all of the embodiments; based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0036] like Figure 1 to Figure 7 The formwork system includes an end formwork system I7, a central formwork system II8, a central formwork system III9, an end formwork system IV10, a top formwork support frame 33, a bottom formwork support frame 34, a side formwork opening and closing cylinder 35, a bottom formwork adjustment cylinder 36, a pouring window 37, and a pumping port 38.

[0037] Furthermore, each template is fully circular, and in the plane, each template end line is perpendicular to the tunnel axis, among which the end template system I7 and the end template system IV10 are end templates, and the central template system II8 and the central template system III9 are central templates.

[0038] The length of each template is the same as the length of the end faces at both ends of the sliding frame.

[0039] like Figure 3 As shown, the length of the end formwork system I7 is the same as the length of the end faces of the sliding frame. Correspondingly, the structure of the end formwork system IV10 corresponds to the end formwork system I7.

[0040] The sliding frame is arranged in the end formwork system I7, the central formwork system II8, the central formwork system III9 and the end formwork system IV10. Each formwork is fixedly connected to the sliding frame, and the sliding frame is mounted on the needle beam. The sliding frame is designed to be a structure that can move along the needle beam, that is, walking wheels are installed on the sliding frame, and driving the sliding frame can drive each formwork to move.

[0041] Wedge plates are arranged between the end formwork system I7, the central formwork system II8, the central formwork system III9 and the end formwork system IV10 to connect the various formworks together.

[0042] like Figure 6 As shown, the length of the central formwork system II8 is the same as the length of the end faces of the central sliding frame II24, and the structure of the central formwork system III9 is ​​consistent with the structure of the central formwork system II8.

[0043] In this example, the formwork system is divided into four parts, namely, a top formwork, a bottom formwork and two side formworks, which are specifically illustrated by the end formwork system I7 and the central formwork system II8. The structural settings of the central formwork system III9 and the end formwork system IV10 correspond to the formwork system I7 and the central formwork system II8.

[0044] The end formwork system I7 is composed of the top formwork 7.1 of the end formwork system I, two side forms 7.2 of the end formwork system I, and the bottom formwork 7.3 of the end formwork system I. Formwork stiffening ribs 7.4 are arranged in the formwork, end panels 7.5 are arranged at both ends of the formwork, and formwork end panel positioning holes 7.6 are arranged on the end panels 7.5 of the end formwork system I7 close to the central formwork system II8. The two side forms 7.2 of the end formwork system I are both provided with casting windows 37, and the top formwork 7.1 is provided with a pumping port 38. Similarly, the structural arrangement of the end formwork system IV10 corresponds to that of the end formwork system I7.

[0045] Furthermore, the arc lengths of the top mold 7.1 of the end formwork system I and the bottom mold 7.3 of the end formwork system I are consistent, and the end panels 7.5 of the top mold 7.1 and the bottom mold 7.3 are symmetrical to each other, and the arc lengths of the two side molds 7.2 of the end formwork system I are consistent and symmetrical to each other. Similarly, the structural setting of the end formwork system IV10 corresponds to that of the end formwork system I7.

[0046] The template end panel positioning holes 7.6 of the top mold 7.1 and the bottom mold 7.3 are symmetrical on both sides with the center of the template as the symmetry axis, and the template end panel positioning holes 7.6 of the top mold 7.1 are consistent with the template end panel positioning holes 7.6 of the bottom mold 7.3. Similarly, the template end panel positioning holes 7.6 of the side molds 7.2 of the two end template systems I are symmetrical on both sides with the center of the side mold as the symmetry axis, and the template end panel positioning holes 7.6 on the side molds 7.2 of the left and right end template systems I are consistent. Similarly, the structural setting of the end template system IV10 corresponds to the end template system I7.

[0047] The central formwork system II8 is composed of the top formwork 8.1 of the central formwork system II, two side forms 8.2 of the central formwork system II, and the bottom formwork 8.3 of the central formwork system II. Formwork stiffening ribs 8.4 are arranged in the formwork, central formwork end panels 8.5 are arranged at both ends of the formwork, and formwork end panel positioning holes 8.6 are arranged on the end panels 8.5 on both sides of the central formwork system II8. The two side forms 8.2 of the central formwork system II are both provided with casting windows 37, and the top formwork 8.1 is provided with a pumping port 38. Similarly, the structural setting of the central formwork system III9 is ​​consistent with that of the central formwork system II8.

[0048] Furthermore, the arc length of the top mold 8.1 of the end mold system II and the bottom mold 8.3 of the end mold system II are consistent, and the end panels 8.5 of the top mold 8.1 and the bottom mold 8.3 are symmetrical to each other, and the arc length of the two side molds 8.2 of the end mold system II is consistent and symmetrical to each other. Similarly, the structural setting of the central mold system III9 is ​​consistent with that of the central mold system II8.

[0049] The template end panel positioning holes 8.6 of the top mold 8.1 and the bottom mold 8.3 of the central template system II8 are symmetrical on both sides with the template center as the symmetry axis, and the template end panel positioning holes 8.6 of the top mold 8.1 are consistent with the template end panel positioning holes 8.6 of the bottom mold 8.3. Similarly, the template end panel positioning holes 8.6 of the side molds 8.2 of the two end template systems II are symmetrical on both sides with the side mold center as the symmetry axis, and the template end panel positioning holes 7.6 on the left and right side molds 8.2 of the two end template systems II are consistent in position. Similarly, the structural setting of the end template system III9 is ​​consistent with that of the end template system II8.

[0050] like Figure 1 , Figure 2As shown, the control method of the end formwork system I7 is as follows: the top formwork 7.1 of the end formwork system I is fixed to the end sliding frame I23 by the top formwork support frame 33, and the two side forms 7.2 of the end formwork system I are hinged on both sides of the top formwork 7.1, and the opening and closing thereof are controlled by the side formwork opening and closing oil cylinder 35. One end of the side formwork opening and closing oil cylinder 35 is hinged to the vertical rod at the end of the end sliding frame I23, and the other end is hinged to the formwork stiffening rib 7.4 in the side formwork 7.2 to control the side formwork 7.2. The bottom formwork 7.3 of the end formwork system I is provided with a bottom formwork support frame 34, and the lifting and lowering of the bottom formwork 7.3 is controlled by the bottom formwork adjusting oil cylinder 36. One end of the bottom formwork adjusting oil cylinder 36 is fixed to the bottom of the end sliding frame I23, and the other end is connected to the bottom formwork support frame 34. Similarly, the opening and closing and lifting methods of the end formwork system IV10 are consistent with those of the end formwork system I7.

[0051] Similarly, the opening, closing and lifting methods of the central formwork system II8 and the central formwork system III9 are consistent with those of the end formwork system I7.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A shield hydraulic tunnel template, characterized in that: The invention comprises an end formwork system I (7), a central formwork system II (8), a central formwork system III (9) and an end formwork system IV (10), wherein the end formwork system I (7), the central formwork system II (8), the central formwork system III (9) and the end formwork system IV (10) are all fully circular, and the end formwork system I (7), the central formwork system II (8), the central formwork system III (9) and the end formwork system IV (10) are connected by a wedge plate, wherein the end formwork system I (7) and the end formwork system IV (10) are respectively arranged at two ends, and the central formwork system The system II (8) and the central formwork system III (9) are arranged between the end formwork system I (7) and the end formwork system IV (10); the end formwork system I (7), the central formwork system II (8), the central formwork system III (9) and the end formwork system IV (10) are provided with casting windows (37) and pumping ports (38) on the outside; and the end formwork system I (7), the central formwork system II (8), the central formwork system III (9) and the end formwork system IV (10) are provided with top formwork support frames (33) and bottom formwork support frames (34) on the inside for support.

2. The shield hydraulic tunnel template according to claim 1 is characterized in that: The end formwork system I (7), the central formwork system II (8), the central formwork system III (9) and the end formwork system IV (10) are all provided with formwork stiffening ribs, and end panels are provided at both ends thereof, and the end panels are provided with formwork end panel positioning holes.

3. The shield hydraulic tunnel template according to claim 2 is characterized in that: The end formwork system I (7), the central formwork system II (8), the central formwork system III (9) and the end formwork system IV (10) have the same structure, including a top formwork, a bottom formwork and two side forms.

4. The shield hydraulic tunnel template according to claim 3 is characterized in that: The top mold and the bottom mold have the same arc length, and the end panels of the top mold and the bottom mold are symmetrical to each other up and down. The two side molds have the same arc length and are symmetrical to each other left and right.

5. The shield hydraulic tunnel template according to claim 2 is characterized in that: The template end panel positioning holes of the top mold and the bottom mold are symmetrical on both sides with the template center as the symmetry axis, and the position of the template end panel positioning holes of the top mold is consistent with the template end panel positioning holes of the bottom mold; the template end panel positioning holes of the two side molds are symmetrical on both sides with the side mold center as the symmetry axis, and the positions of the template end panel positioning holes on the left and right side molds are consistent.

6. The shield hydraulic tunnel template according to claim 3 is characterized in that: The top mold is fixed to the sliding frame by a top mold support frame (33). The sliding frame is a rectangular frame structure arranged in the end mold system I (7), the central mold system II (8), the central mold system III (9) and the end mold system IV (10). Two side molds are hinged on both sides of the top mold. The opening and closing of the side molds are controlled by a side mold opening and closing cylinder (35). One end of the side mold opening and closing cylinder (35) is hinged on the end sliding frame, and the other end is hinged on the side mold. A bottom mold support frame (34) is arranged in the bottom mold. The lifting and lowering of the bottom mold is controlled by a bottom mold adjusting cylinder (36). One end of the bottom mold adjusting cylinder (36) is fixed to the bottom of the sliding frame, and the other end is connected to the bottom mold support frame (34).

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