A soft rock high slope anchor rod frame beam combined steel mold system and a using method thereof

Abstract

This invention discloses a combined steel formwork system for anchor beams on soft rock high slopes and its usage method. The system includes adjustable supports (5); combined steel formwork for main beam segments, which includes a left formwork, a right formwork, and a top formwork. The left formwork includes a left formwork main panel (1) and a left formwork flange plate (2) located on one side of the top of the left formwork main panel (1). The top formwork includes a top formwork main panel (12) and a top formwork right-side protruding water-retaining flange plate (11) located on the top of one side of the top formwork main panel (12); a formwork fastening device (13) located between the left, right, and top formswork; and an integral steel formwork for the cross-shaped nodes of the frame beams at the joint points of multiple combined steel formwork units for anchor beams on soft rock high slopes. The system of this invention controls the elevation and straightness of the side forms by adjusting the adjustable supports, thereby unifying the dimensions of the frame beams and solving the problem of the difficulty in manually leveling the bottom of rock trenches.

Description

Technical Field

[0001] This invention belongs to the field of anchor frame beam formwork construction, and more specifically, relates to a combined steel formwork system for anchor frame beams on soft rock high slopes and its usage method. Background Technology

[0002] Currently, anchored frame beam slope protection has often achieved good results in addressing high slope problems both domestically and internationally. However, in actual on-site construction, objective factors often make it difficult to guarantee the construction quality of the frame beams. For example, most construction teams lack a set of effective construction techniques, resulting in substandard construction that fails to meet specifications and design requirements. Furthermore, the common practice of simply assembling wooden or steel formwork on-site leads to loose assembly, resulting in inconsistent dimensions and unattractive alignment of the anchored frame beams, and even grout leakage and formwork bursting during concrete pouring. Additionally, the use of assembly during formwork erection makes it difficult to integrate the main beam and water-retaining edge formwork, requiring the water-retaining edge to be poured in stages, leaving construction joints and affecting the overall integrity of the frame beam structure. Moreover, the need for closed formwork on steep slopes results in insufficient concrete compaction, easily leading to defects such as voids, honeycombing, and pitting on the finished frame beam appearance. Therefore, the construction quality and appearance of anchored frame beams are affected by many factors, with the selection and installation of the formwork system being particularly crucial. Summary of the Invention

[0003] To address the aforementioned deficiencies or improvement needs of existing technologies, this invention discloses a combined steel formwork system for anchor bolt frame beams on soft rock high slopes and its usage method. The fastening device can simultaneously tighten the side formwork and press the top formwork. The fastening device consists of a central screw and a central bolt sleeve. The upper part of the screw has a rotating handle, and the lower part has a concave ring for connecting a tension rope. The central screw is tightened downwards through the central bolt sleeve, simultaneously driving the tension rope connected to the screw's concave ring. This tension rope tightens the left and right side formworks through a tensioning connector, while simultaneously pressing the top formwork downwards. This device allows the fastening device to tighten both side formworks without penetrating the formwork and concrete structure, and the central pressing bolt prevents the top formwork from floating. Overall, it is convenient to use and provides good fastening effect.

[0004] To achieve the above objectives, according to one aspect of the present invention, a composite steel formwork system for anchor bolt frame beams on soft rock high slopes is provided, comprising:

[0005] Adjustable support (5) is provided at the bottom of the template;

[0006] The frame beam main beam segment combined steel formwork is set on the adjustable support (5). The frame beam main beam segment combined steel formwork includes a left mold, a right mold and a top mold. The left mold includes a left mold main panel (1) and a left mold flange plate (2) set on one side of the top of the left mold main panel (1). The top mold includes a top mold main panel (12) and a top mold right protruding water-blocking flange template (11) set on the top of one side of the top mold main panel (12). The left mold, right mold and top mold are fixedly connected and together constitute the soft rock high slope anchor frame beam combined steel formwork unit.

[0007] A template fastening device (13) is provided between the left side mold, the right side mold, and the top mold. The template fastening device (13) includes a rotating screw (13-3) and tensioning connecting buckles (13-1) symmetrically arranged on the rotating screw (13-3). One tensioning connecting buckle (13-1) fastens the flange plate (2) of the left side mold, and the other tensioning connecting buckle (13-1) fastens the right side protruding water-blocking flange template (11) of the top mold.

[0008] The overall steel formwork for the cross-shaped nodes of the frame beams at the joint points of multiple soft rock high slope anchor frame beam combined steel formwork units is provided. The crisscrossing soft rock high slope anchor frame beam combined steel formwork units are connected by the overall steel formwork for the cross-shaped nodes of the frame beams to form a soft rock high slope anchor frame beam combined steel formwork system.

[0009] Furthermore, the left mold includes a side mold bottom hole (3) located at the bottom of the left mold main panel (1);

[0010] And a side mold connection side hole (4) located at one end of the left side mold main panel (1).

[0011] Furthermore, the top mold includes a plurality of top mold pouring ports (9) provided on the main panel (12) of the top mold.

[0012] Furthermore, the top mold includes a left flange plate (10) of the top mold located on the top of the other side of the main panel (12) of the top mold.

[0013] Furthermore, the template fastening device (13) includes a pad (13-5), and the rotating screw (13-3) is disposed on the pad (13-5).

[0014] Furthermore, the template fastening device (13) includes a central threaded sleeve (13-4) located in the middle section of the rotating screw (13-3).

[0015] Furthermore, the template fastening device (13) includes a tension rope (13-2) disposed on the rotating screw (13-3).

[0016] Furthermore, it also includes a tensioning connector (8) that is matched with the template fastening device (13), the tensioning connector (8) including a left mold fixing mechanism (8-1) and a top mold fixing mechanism (8-2).

[0017] Furthermore, the adjustable support (5) includes a pad (5-4), a perforated screw (5-1) disposed on the pad (5-4), and an upper nut fastener (5-2) and a lower nut fastener (5-3) sleeved on the perforated screw (5-1).

[0018] According to a second aspect of the present invention, a method for using a composite steel formwork system for anchor bolt frame beams on a soft rock high slope is provided, comprising the following steps:

[0019] S100: After the steel reinforcement cage of the anchor frame beam is tied, the construction layout is carried out. According to the design drawings, the left and right formwork edges are marked in the slope trench, and the formwork is lifted and placed into the corresponding position in the slope trench using a truck crane.

[0020] S200: Hoist the integral steel formwork of the cross intersection node of the frame beam to the cross intersection node of the anchor frame beam reinforcement and install it. After installation, temporarily fix it.

[0021] S300: Hoist the main beam segment combination formwork of the frame beam and install the left and right side formwork in the trench. Before erecting the side formwork, install adjustable supports at the bottom of the side formwork. After the side formwork is installed, adjust the height of the adjustable supports to ensure the straightness and elevation of the formwork. Fill the gap between the bottom of the side formwork and the slope trench with mortar or clay to keep the formwork stable.

[0022] S400: The side formwork and the cross-shaped node integral steel formwork are connected through the side formwork bolt connection holes to make them a whole;

[0023] S500: The top formwork of the main beam segment combination formwork for hoisting frame beams, the outer side of the left flange plate of the top formwork and the inner side of the left flange plate of the left formwork are closely attached, and the inner side of the right water-blocking flange formwork and the outer side of the flange plate of the right formwork are closely attached.

[0024] S600: After the side mold and top mold are combined, set the template fastening device, manually tighten the central screw to tighten the tension rope to tighten the left and right molds, and at the same time press the top mold downward;

[0025] S700: After the formwork is accepted, pour and vibrate the concrete through the top formwork's vibratory inlet. Once the concrete reaches the design strength, remove the formwork, unload the formwork fastening devices and formwork connecting bolts, and then use a hammer to knock down the left formwork, top formwork, and right formwork in sequence to remove the formwork.

[0026] In summary, compared with the prior art, the above-described technical solutions conceived by this invention can achieve the following beneficial effects:

[0027] 1. The system of the present invention includes a fastening device that can simultaneously tighten the side molds and press the top mold. The fastening device consists of a central screw and a central bolt sleeve. The upper part of the screw has a rotating handle, and the lower part has a concave ring for connecting a tension rope. The central screw is tightened downwards through the central bolt sleeve, simultaneously driving the tension rope connected to the screw's concave ring. This tension rope tightens the left and right side molds through a tensioning connector, and simultaneously presses the top mold downwards. This device allows the fastening device to tighten both side molds without passing through the formwork and concrete structure, and the central pressing bolt prevents the top mold from floating. Overall, it is convenient to use and provides a good fastening effect.

[0028] 2. In the system of the present invention, adjustable supports are installed at the bottom of the left and right molds of the frame beam. This can address the problem that the bottom of the rock trench is difficult to level manually. By adjusting the adjustable supports, the elevation and straightness of the side molds can be controlled, so that the frame beams are uniform in size and have a linear and aesthetically pleasing appearance.

[0029] 3. The system of the present invention includes a combined steel formwork for anchor frame beams with flange plates and water-retaining flanges. This combined steel formwork ensures that the water-retaining flange and the main body of the frame beam are poured in one go without leaving construction joints, and can ensure uniform and beautiful structural dimensions. The side formwork has limiting flange plates, which better ensures tight splicing with the top formwork. Moreover, the construction speed is fast and the installation accuracy is high when using this combined steel formwork, which can well guarantee the quality of the frame beam.

[0030] 4. The method of the present invention involves hoisting steel formwork into the excavated trench of the slope frame beam using hoisting machinery, installing adjustable supports at the bottom of the side formwork, and then sequentially erecting the overall formwork for the cross intersection of the frame beam and the combined formwork for the main beam segments of the frame beam (including the left side formwork, the right side formwork, and the top formwork). After assembly, the side formwork is tightened in opposite directions and the top formwork is pressed down by the formwork fastening device. Based on this system, the combined steel formwork for the frame beam is installed and construction is carried out. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the combined steel formwork for the main beam segments of the frame beam according to an embodiment of the present invention;

[0032] Figure 2 This is a diagram of the overall steel formwork for the cross-shaped intersection of the frame beams in an embodiment of the present invention.

[0033] Figure 3 This is a schematic diagram of the left-side formwork structure of the main beam segment of the frame beam in an embodiment of the present invention;

[0034] Figure 4 This is a schematic diagram of the right-side formwork structure of the main beam segment of the frame beam according to an embodiment of the present invention;

[0035] Figure 5 This is a schematic diagram of the top formwork structure of the main beam segment of the frame beam according to an embodiment of the present invention;

[0036] Figure 6This is a diagram of the template fastening device according to an embodiment of the present invention;

[0037] Figure 7 This is an adjustable support diagram according to an embodiment of the present invention;

[0038] Figure 8 This is a schematic diagram illustrating the process of using a combined steel formwork for anchor bolt frame beams on a soft rock high slope, according to an embodiment of the present invention.

[0039] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1 left side mold main panel; 2 left side mold flange plate; 3 side mold bottom hole; 4 side mold connecting side hole; 5 adjustable support; 5-1 through-hole screw; 5-2 upper nut fastener; 5-3 lower nut fastener; 5-4 pad plate; 6 right side mold main panel; 7 right side mold flange plate; 8 tensioning connection buckle; 8-1 left side mold fixing mechanism; 8-2 top mold fixing mechanism; 9 top mold tamping port; 10 top mold left flange plate; 11 top mold right side raised water-blocking flange template; 12 top mold main panel; 13 template fastening device; 13-1 tensioning connection buckle; 13-2 tension rope; 13-3 rotating screw; 13-4 central threaded sleeve; 13-5 pad plate. Detailed Implementation

[0040] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention. Furthermore, the technical features involved in the various embodiments of this invention described below can be combined with each other as long as they do not conflict with each other.

[0041] like Figure 1 , Figure 2As shown, this embodiment of the invention provides a combined steel formwork system for anchored frame beams on soft rock high slopes, consisting of four parts: adjustable bottom supports 5, combined steel formwork for main beam segments of the frame beam (including left side formwork, right side formwork, and top formwork), integral steel formwork for the cross intersection of the frame beam, and formwork fastening device 13. The steel formwork is mainly hoisted into the excavated trench of the frame beam on the slope using hoisting machinery. Adjustable supports 5 are installed at the bottom of the side formwork. Then, the integral formwork for the cross intersection of the frame beam and the combined formwork for the main beam segments of the frame beam (including left side formwork, right side formwork, and top formwork) are sequentially erected. After assembly, the side formwork is tightened in opposite directions and the top formwork is pressed downwards by the formwork fastening device 13. Based on this system, the combined steel formwork for the frame beam is installed and construction is carried out. The system fastening device of this invention can simultaneously tighten the side molds and press the top mold. The device consists of a central screw and a central bolt sleeve. The upper part of the screw has a rotating handle, and the lower part has a concave ring for connecting a tension rope. The central screw is tightened downwards through the central bolt sleeve, simultaneously driving the tension rope connected to the screw's concave ring. This tension rope tightens the left and right side molds through a tension connector, and simultaneously presses the top mold downwards. This device allows the fastening device to tighten both side molds without passing through the formwork and concrete structure, and the central pressing bolt prevents the top mold from floating. Overall, it is convenient to use and provides good fastening effect.

[0042] Specifically, such as Figure 3-5As shown, in an embodiment of the present invention, the composite steel formwork for the main beam segments of the frame beam includes a left mold, a right mold, and a top mold. The left and right molds are symmetrically arranged, and the top mold is located on top of the left and right molds. Together, these three form a composite steel formwork unit for the anchor beam of a soft rock high slope. The crisscrossing composite steel formwork units for the anchor beam of the soft rock high slope are connected by the integral steel formwork at the cross-shaped nodes of the frame beam to form a composite steel formwork system for the anchor beam of the soft rock high slope. The left mold includes a left mold main panel 1, a left mold flange plate 2 located on one side of the top of the left mold main panel 1, a side mold bottom hole 3 located at the bottom of the left mold main panel 1, and a side mold connecting side hole 4 located at one end of the left mold main panel 1. The right mold includes a right mold main panel 6, a right mold flange plate 7 located on one side of the top of the right mold main panel 6, a side mold bottom hole 3 located at the bottom of the right mold main panel 6, and a side mold connecting side hole 4 located at one end of the right mold main panel 6. The top mold includes a main panel 12 and multiple pouring ports 9 on the main panel 12. The diagram shows three ports, but more can be installed as needed to ensure rapid casting of the entire formwork system. Additionally, the top mold includes a left flange plate 10 located on the top of one side of the main panel 12, and a right-side raised water-blocking flange template 11 located on the top of the other side of the main panel 12. One side of the right-side raised water-blocking flange template 11 is fitted with the right-side flange plate 7, and the left flange plate 10 is fitted with the left-side flange plate 2. The left, right, and top molds are fixedly connected by a template fastening device 13, thus forming a steel formwork system. The system of the present invention includes a combined steel formwork for anchor frame beams, comprising flange plates and water-retaining flanges. This combined steel formwork ensures that the water-retaining flange and the main body of the frame beam are poured in one go without leaving construction joints, and also ensures uniform and aesthetically pleasing structural dimensions. The side formwork has limiting flange plates, which better ensures tight splicing with the top formwork. Furthermore, the use of this combined steel formwork results in fast construction speed and high installation accuracy, which can well guarantee the quality of the frame beam.

[0043] like Figure 6 As shown, in an embodiment of the present invention, the template fastening device 13 includes a pad 13-5, a rotating screw 13-3 disposed on the pad 13-5, and tensioning fasteners 13-1 symmetrically disposed on the rotating screw 13-3. One tensioning fastener 13-1 fastens the left mold flange plate 2, and the other tensioning fastener 13-1 fastens the right protruding water-blocking flange template 11 of the top mold. Simultaneously, the tensioning fasteners 13-1 are elastically connected to the rotating screw 13-3 via tension ropes 13-2. Furthermore, the rotating screw 13-3 has a central threaded sleeve 13-4 in its middle section.

[0044] like Figure 1As shown, in a preferred embodiment of the present invention, a tensioning connector 8 is further provided to match the template fastening device 13. The tensioning connector 8 includes a left mold fixing mechanism 8-1 and a top mold fixing mechanism 8-2. The left mold fixing mechanism 8-1 is provided on the left mold flange plate 2, and the top mold fixing mechanism 8-2 is provided on the right protruding water-blocking flange template 11 of the top mold. One end of the left mold fixing mechanism 8-1 and the top mold fixing mechanism 8-2 is respectively provided with a groove that matches the tensioning connector 13-1, so that the left mold, right mold and top mold can be quickly fixed by inserting into the groove during construction to form a steel membrane system, which greatly improves construction efficiency.

[0045] like Figure 7 As shown in the embodiment of the invention, the bottom of the left and right molds are respectively provided with multiple adjustable supports 5. Each adjustable support 5 includes a pad 5-4, a perforated screw 5-1 disposed on the pad 5-4, and an upper nut fastener 5-2 and a lower nut fastener 5-3 sleeved on the perforated screw 5-1. The adjustable supports installed at the bottom of the left and right molds of the system frame beam of the present invention address the problem of difficulty in manually leveling the bottom of rock trenches. By adjusting the adjustable supports, the elevation and straightness of the side molds can be controlled, resulting in uniform dimensions and a linear, aesthetically pleasing frame beam.

[0046] like Figure 8 As shown, in one embodiment of the present invention, a method for using a composite steel formwork system of anchor bolt frame beams for high soft rock slopes is provided. The method mainly includes the following steps:

[0047] S100: After the steel reinforcement cage of the anchor frame beam is tied, the construction layout is carried out. According to the design drawings, the left and right formwork edges are marked in the slope trench, and the formwork is lifted and placed in the corresponding position in the slope trench by a truck crane.

[0048] S200: Hoist the integral steel formwork of the cross intersection node of the frame beam to the cross intersection node of the anchor frame beam reinforcement and install it. After installation, temporarily fix it.

[0049] S300: Hoist the main beam segment combination formwork of the frame beam and install the left and right side formwork in the trench. Before erecting the side formwork, install adjustable supports at the bottom of the side formwork. After the side formwork is installed, adjust the height of the adjustable supports to ensure the straightness and elevation of the formwork. Fill the gap between the bottom of the side formwork and the slope trench with mortar or clay to keep the formwork stable.

[0050] S400: The side formwork and the cross-shaped node integral steel formwork are connected through the side formwork bolt connection holes to make them a whole;

[0051] S500: The top formwork of the main beam segment combination formwork for hoisting frame beams, the outer side of the left flange plate of the top formwork and the inner side of the left flange plate of the left formwork are closely attached, and the inner side of the right water-blocking flange formwork and the outer side of the flange plate of the right formwork are closely attached.

[0052] S600: After the side mold and top mold are assembled, set the template fastening device, manually tighten the central screw to tighten the tension rope to tighten the left and right molds, and at the same time press the top mold downward.

[0053] S700: After the formwork is accepted, pour and vibrate the concrete through the top formwork's vibratory inlet. Once the concrete reaches the design strength, remove the formwork. First, remove the formwork fastening devices and formwork connecting bolts, and then use a hammer to knock on the left side formwork, top formwork, and right side formwork in sequence to remove the formwork.

[0054] This invention provides a combined steel formwork system and method for using anchor frame beams on soft rock high slopes. It is used to solve the problems caused by traditional construction methods in the construction of anchor frame beam slope protection on high slopes, such as inconsistent frame beam dimensions, unsightly lines, easy formation of voids, honeycomb, pitting, and construction joints left by the phased pouring of water-retaining edges.

[0055] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A soft rock high slope anchor rod frame beam combined steel formwork system, characterized in that, include: Adjustable support (5) is provided at the bottom of the template; The frame beam main beam segment combined steel formwork is set on the adjustable support (5). The frame beam main beam segment combined steel formwork includes a left mold, a right mold and a top mold. The left mold includes a left mold main panel (1) and a left mold flange plate (2) set on one side of the top of the left mold main panel (1). The top mold includes a top mold main panel (12) and a top mold right protruding water-blocking flange template (11) set on the top of one side of the top mold main panel (12). The top mold also includes a top mold left flange plate (10) set on the top of the other side of the top mold main panel (12). The left mold, right mold and top mold are fixedly connected and together constitute a soft rock high slope anchor frame beam combined steel formwork unit. The top formwork of the main beam segment combination formwork for hoisting the frame beam has the outer side of the left flange plate of the top formwork and the inner side of the left flange plate of the left formwork tightly attached. The right side protruding water-blocking flange formwork of the top formwork and the outer side of the right side flange plate are also tightly attached. A formwork fastening device (13) is provided between the left side formwork, the right side formwork and the top formwork. The formwork fastening device (13) includes a rotating screw (13-3) and tensioning connecting buckles I (13-1) symmetrically arranged on the rotating screw (13-3). One tensioning connecting buckle I (13-1) fastens the left side flange plate (2), and the other tensioning connecting buckle I (13-1) fastens the right side protruding water-blocking flange formwork (11) of the top formwork. The formwork fastening device (13) includes a pad plate (13-5), and the rotating screw (13-3) is provided on the pad plate (13-5). The formwork fastening device (13) includes a tensioning rope (13-2) provided on the rotating screw (13-3). The overall steel formwork for the cross-shaped nodes of the frame beams at the joint points of multiple soft rock high slope anchor frame beam combined steel formwork units is provided. The crisscrossing soft rock high slope anchor frame beam combined steel formwork units are connected by the overall steel formwork for the cross-shaped nodes of the frame beams to form a soft rock high slope anchor frame beam combined steel formwork system.

2. The soft rock high slope anchor rod frame beam combined steel form system according to claim 1, characterized in that, The left mold includes a side mold bottom hole (3) located at the bottom of the main panel (1) of the left mold. And a side mold connection side hole (4) located at one end of the left side mold main panel (1).

3. The composite steel formwork system for anchor bolt frame beams on soft rock high slopes according to claim 2, characterized in that, The top mold includes multiple top mold pouring ports (9) provided on the main panel (12) of the top mold.

4. The composite steel formwork system for anchor bolt frame beams on soft rock high slopes according to claim 3, characterized in that, The template fastening device (13) includes a central threaded sleeve (13-4) located in the middle section of the rotating screw (13-3).

5. A composite steel formwork system for anchor bolt frame beams on a high soft rock slope according to claim 4, characterized in that, It also includes a tensioning connection buckle II (8) that is matched with the template fastening device (13). The tensioning connection buckle II (8) includes a left mold fixing mechanism (8-1) and a top mold fixing mechanism (8-2). The left mold fixing mechanism (8-1) is located on the left mold flange plate (2), and the top mold fixing mechanism (8-2) is located on the right side protruding water-blocking flange template (11) of the top mold. One end of the left mold fixing mechanism (8-1) and the top mold fixing mechanism (8-2) is respectively provided with a groove that matches the tensioning connection buckle I (13-1), so that the left mold, right mold and top mold can be quickly fixed by inserting into the groove during construction to form a steel mold system.

6. A composite steel formwork system for anchor bolt frame beams on a high soft rock slope according to claim 5, characterized in that, The adjustable support (5) includes a pad (5-4), a perforated screw (5-1) provided on the pad (5-4), and an upper nut fastener (5-2) and a lower nut fastener (5-3) sleeved on the perforated screw (5-1).

7. A method for using a combined steel formwork system for anchor bolt frame beams on a high soft rock slope, characterized by employing the combined steel formwork system for anchor bolt frame beams on a high soft rock slope as described in claim 6. Includes the following steps: S100: After the steel reinforcement cage of the anchor frame beam is tied, the construction layout is carried out. According to the design drawings, the left and right formwork edges are marked in the slope trench, and the formwork is lifted and placed in the corresponding position in the slope trench using a truck crane. S200: Hoist the integral steel formwork of the cross intersection node of the frame beam to the cross intersection node of the anchor frame beam reinforcement and install it. After installation, temporarily fix it. S300: Hoist the main beam segment combination formwork of the frame beam and install the left and right side formwork in the trench. Before erecting the side formwork, install adjustable supports at the bottom of the side formwork. After the side formwork is installed, adjust the height of the adjustable supports to ensure the straightness and elevation of the formwork. Fill the gap between the bottom of the side formwork and the slope trench with mortar or clay to keep the formwork stable. S400: The side formwork and the cross-shaped node integral steel formwork are connected through the side formwork bolt connection holes to make them a whole; S500: The top formwork of the main beam segment combination formwork for hoisting frame beams, the outer side of the left flange plate of the top formwork and the inner side of the left flange plate of the left formwork are closely attached, and the right protruding water-blocking flange formwork of the top formwork and the outer side of the right flange plate are closely attached. S600: After the side mold and top mold are combined, a template fastening device is set up. The screw is manually turned so that the tension rope tightens the left and right molds and simultaneously presses the top mold downward. S700: After the formwork is accepted, pour and vibrate concrete through the top formwork pouring port. After the concrete reaches the design strength, remove the formwork, unload the formwork fastening device and formwork connecting bolts, and then use a hammer to knock down the left formwork, top formwork and right formwork in sequence to remove the formwork.

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