A buckle-belt anchoring device for sanitary landfill liner

Abstract

A buckle-type anchoring device for the cushion layer of a sanitary landfill belongs to the technical field of sanitary landfills. The device includes a lower fixed shell, an upper fixed shell, and a mouth frame. The device is located in an intermediate platform between the upper section and the lower end of the upper end of the landfill slope. The shell is fixedly connected to a concrete anchor pile. One end of the cushion layer of the downslope section is wound around the mouth frame and placed in the shell. The remaining part of the cushion layer of the downslope section extends outward from the shell and is placed on the slope. The device uses a mouth frame to wind the cushion layer of the downslope section, which is placed in a shell composed of a lower fixed shell and an upper fixed shell, and is fixedly connected to a concrete anchor pile. The cushion layer can be firmly fixed, and the problems of large engineering volume, long construction period, and difficulty in maintenance and reinforcement of the traditional groove anchoring system can be solved or improved.

Description

Technical Field

[0001] The invention belongs to the technical field of sanitary landfills, and in particular relates to a buckle-belt anchoring device for a sanitary landfill liner. Background Art

[0002] With the development of the national economy and the improvement of urbanization, the amount of urban domestic waste is increasing rapidly. There are three main methods for the final disposal of urban domestic waste: sanitary landfill, composting and incineration. Among them, sanitary landfill is the most commonly used waste treatment technology in the world. It is based on scientific site selection, adopts necessary site protection treatment methods and reasonable landfill structure to minimize and eliminate the impact of garbage on the environment, especially on groundwater pollution. In recent years, many cities have successively built large-scale domestic waste landfills.

[0003] In urban sanitary landfills, a liner system must be set up to prevent leachate from seeping into the ground and causing groundwater pollution. During the landfill process, garbage is landfilled in layers and blocks. Due to the continuous accumulation and compression of garbage and the action of landfill operation vehicles, tension will be formed in the liner layer, and the liner system may lose its original function. In order to prevent this phenomenon from happening, an anchoring area is generally set at the top of the slope or the platform of the segmented slope.

[0004] The anchoring of the landfill liner generally adopts a trench anchoring system, which mostly adopts a rectangular cross-section. The edges of the geomembrane and the protective fabric are folded in the trench and fixed with cement concrete. This traditional trench anchoring system requires reinforcement of the trench sidewalls and bottom during construction, which is a large amount of work. The concrete pouring and curing period on the liner is long, so it has certain limitations in terms of functionality and practical performance. Summary of the invention

[0005] The present invention proposes a buckle-belt anchoring device for the liner of a sanitary landfill, which adopts an opening frame to wrap around the liner of the downhill section, is placed in a shell body composed of a lower fixed shell and an upper fixed shell, and is fixedly connected to concrete anchor piles. The device can firmly fix the liner, and can solve or improve the problems of large engineering workload, long construction period, and difficulty in maintenance and reinforcement of the traditional trench anchoring system.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A buckle-belt anchoring device for a sanitary landfill liner comprises a liner, wherein the liner comprises an upslope liner and a downslope liner, the device comprises a lower fixed shell, an upper fixed shell and an opening frame, the lower fixed shell and the upper fixed shell are combined into a shell, the opening frame is placed in the shell, the device is placed in an intermediate platform opened between an upper section and a lower end of the upper end of a landfill slope, a concrete anchor pile is arranged below the intermediate platform, the shell is fixedly connected to the concrete anchor pile, one end of the downslope liner is wound around the opening frame and placed in the shell, the remaining part of the downslope liner extends outward from the shell and is placed on the slope, the upslope liner is laid from the upslope to the top of the shell and then overlapped on top of the downslope liner, and the two are fixed by welding at the overlap.

[0008] Furthermore, side ears are provided on both sides of the lower fixing shell and the upper fixing shell, and side ear circular holes are opened on the side ears. The lower fixing shell and the upper fixing shell are connected by bolts.

[0009] Furthermore, notches are provided at corresponding positions on the same side of the lower fixed shell and the upper fixed shell, and the downhill section cushion layer extends out of the shell from the notch and is placed on the slope.

[0010] Furthermore, a circular hole is provided at the bottom of the lower fixing shell, and the lower fixing shell is connected to the top of the concrete anchor pile via expansion bolts and rubber sheets arranged in the circular hole at the bottom of the lower fixing shell.

[0011] Furthermore, the lower fixed shell and the upper fixed shell are prefabricated parts of reinforced concrete material, the bottom is a square with a side length of 1000mm and a height of 230mm, the middle hollow part has a side length of 850mm and a height of 180mm, the side ears are 100mm wide and 30mm thick, and the radius of the side ear holes is 30mm.

[0012] Furthermore, the recess is rectangular, 780 mm long and 40 mm deep.

[0013] Furthermore, the radius of the circular hole at the bottom of the lower fixing shell is 50 mm.

[0014] Furthermore, the opening frame is a square reinforced concrete prefabricated part with an outer side length of 800 mm, an inner side length of 560 mm, and a height of 200 mm.

[0015] Furthermore, the concrete anchor pile is 2m long, 20cm in diameter, has a conical bottom, and is provided with a reserved hole at the upper end.

[0016] Furthermore, the downhill section cushion layer is wound from the bottom of one side of the opening frame to the upper part of the side, then wound around the relative bottom, and wound out from the upper part of the relative side.

[0017] The advantages and effects of the present invention are:

[0018] The new type of assembled anchoring structure for the sanitary landfill liner proposed in the present invention adopts an opening frame to wrap the downhill section liner, which is placed in a shell body composed of a lower fixed shell and an upper fixed shell, and is fixedly connected with concrete anchor piles, so as to firmly fix the liner. It can be prefabricated in a factory, assembled on site, and the components are standardized, which can improve work efficiency and shorten the construction period. On the premise of meeting the requirements of anchoring technology, it can solve the problems of large engineering volume, long construction period, and difficult maintenance and reinforcement of the traditional groove anchoring system. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is an overall cross-sectional view of the buckle-type anchoring structure of the sanitary landfill liner layer of the present invention;

[0020] Figure 2 This is the plan view of the lower fixed shell;

[0021] Figure 3 It is the side view of the lower fixed shell;

[0022] Figure 4 It is a three-dimensional diagram of the upper fixed shell;

[0023] Figure 5 This is the plan view of the upper fixed shell;

[0024] Figure 6 It is a three-dimensional picture of the opening frame;

[0025] Figure 7 It is the plan view of the opening frame;

[0026] Figure 8 It is a schematic diagram of the path of the subframe of the lower cushion layer;

[0027] Fig. 9 It is a three-dimensional diagram of the upper fixing shell, the lower fixing shell, and the common bolts;

[0028] Fig.10 It is a perspective view of the upper fixed shell, the lower fixed shell, and the opening frame.

[0029] In the figure: 1 is a lower fixed shell, 2 is an upper fixed shell, 3 is an opening frame, 4 is an intermediate platform, 5 is an uphill section cushion layer, 6 is a downhill section cushion layer, 7 is a slope, 8 is a concrete anchor pile, 9 is a side ear, 10 is a side ear circular hole, 11 is a notch, 12 is a bottom circular hole of the lower fixed shell, 13 is an expansion bolt, 14 is a rubber sheet, 15 is a welding point, and 16 is a bolt. DETAILED DESCRIPTION

[0030] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments.

[0031] The buckle-type anchoring structure of the sanitary landfill liner includes a lower fixed shell, an upper fixed shell, a mouth frame, a concrete anchor pile, an expansion bolt and a rubber sheet; an uphill section liner and a downhill section liner are arranged on the slope of the landfill; the lower fixed shell is buried at the middle platform of the slope, and is fixed to the upper end of the concrete anchor pile by expansion bolts and rubber sheets through the round hole at the bottom of the lower fixed shell; the downhill section liner is inserted into the mouth frame in a certain order, and the mouth frame together with the downhill section liner wrapped thereon is placed in the lower fixed shell, and side ears are arranged on both sides of the upper fixed shell and the lower fixed shell, and side ear round holes are arranged on the side ears; the upper fixed shell and the lower fixed shell are connected by ordinary bolts through the round holes on the side ears. The uphill section liner and the downhill section liner are overlapped by welding at the welding points to maintain continuity.

[0032] Furthermore, the lower fixed shell and the upper fixed shell are prefabricated parts of reinforced concrete material. The bottom is a square with a side length of 1000mm and a height of 230mm. The side length of the hollow part in the middle is 850mm and the height is 180mm. The radius of the circular hole at the bottom of the lower fixed shell is 50mm; the side ears are 100mm wide and 30mm thick, and the radius of the circular hole of the side ears is 30mm; there is a rectangular recess on one side, which is 780mm long and 40mm deep, providing space for the penetration of the lower cushion layer.

[0033] Furthermore, the opening frame is a square reinforced concrete prefabricated part with an outer side length of 800 mm, an inner side length of 560 mm, and a height of 200 mm.

[0034] Furthermore, the concrete anchor pile is 2 m long, 20 cm in diameter, has a conical bottom, and is provided with a reserved hole at the upper end for easy insertion of the expansion bolt.

[0035] Example 1

[0036] like Figure 1 As shown, the present invention is a sanitary landfill liner buckle type anchoring structure, including a lower fixing shell (see Figure 2 , 3 )、Upper fixed shell (see Figure 4 , 5 )、Opening frame (see Figure 6 , 7 ), concrete anchor piles, expansion bolts and rubber sheets; an uphill section cushion layer and a downhill section cushion layer are arranged on the slope of the landfill; a lower fixing shell is buried at the middle platform of the slope, and is fixed to the upper end of the concrete anchor pile with expansion bolts and rubber sheets through the circular holes at the bottom of the lower fixing shell; the downhill section cushion layer is arranged according to Figure 8The downslope lining layer is wound from the bottom of one side of the opening frame to the upper part of the side, then wound to the opposite bottom, and wound out from the upper part of the opposite side. The opening frame together with the downslope lining layer wound thereon is placed in the lower fixed shell, and the upper fixed shell and the lower fixed shell are provided with side ears on both sides, and the side ears are provided with side ear circular holes; the upper fixed shell and the lower fixed shell are connected by ordinary bolts through the circular holes on the side ears, such as Fig. 9 , Fig.10 As shown in the figure, the upslope lining layer and the downslope lining layer are overlapped at the welding points by welding to maintain continuity.

[0037] The lower fixed shell and the upper fixed shell are prefabricated parts of reinforced concrete. The bottom is a square with a side length of 1000mm and a height of 230mm. The side length of the hollow part in the middle is 850mm and the height is 180mm. The radius of the circular hole at the bottom of the lower fixed shell is 50mm; the side ears are 100mm wide and 30mm thick, and the radius of the circular hole of the side ears is 30mm; there is a rectangular recess on one side, which is 780mm long and 40mm deep, providing space for the penetration of the lining layer of the lower downhill section.

[0038] The opening frame is a square reinforced concrete prefabricated part with an outer side length of 800mm, an inner side length of 560mm and a height of 200mm. Figure 1 The path shown is inserted into the opening frame, and the cushion layer is fixed by fixing the upper and lower shells so that they cannot rotate relative to each other.

[0039] The concrete anchor pile is 2m long and 20cm in diameter. It has a conical bottom and a reserved hole at the top to facilitate the insertion of expansion bolts.

Claims

1. A buckle-belt anchoring device for a sanitary landfill liner, comprising a liner, characterized in that: The cushion layer comprises an uphill cushion layer (5) and a downhill cushion layer (6); the device comprises a lower fixed shell (1), an upper fixed shell (2), and an opening frame (3); side ears (9) are provided on both sides of the lower fixed shell (1) and the upper fixed shell (2); side ear circular holes (10) are provided on the side ears; the lower fixed shell (1) and the upper fixed shell (2) are connected to form a shell by bolts (16); the opening frame (3) is placed in the shell; the device is arranged in an intermediate platform (4) provided between the uphill section and the downhill section of the landfill slope; concrete anchor piles (8) are provided below the intermediate platform (4); the bottom of the lower fixed shell (1) is opened A circular hole (12) is provided at the bottom of the lower fixed shell, which is connected to the top of the concrete anchor pile (8) via an expansion bolt (13) and a rubber sheet (14); the downslope section cushion layer (6) is wound from the bottom of one side of the opening frame (3) in the shell to the upper part of the side, then wound around the bottom of the opposite side, and wound out from the upper part of the opposite side; the lower fixed shell (1) and the upper fixed shell (2) are provided with a notch (11) at corresponding positions on the same side; the downslope section cushion layer (6) extends out of the shell from the notch (11) and is placed on the slope (7); the upslope section cushion layer (5) is laid from the upslope section to the top of the shell and then overlapped on the top of the downslope section cushion layer (6); the two are welded and fixed at the overlap.

2. A sanitary landfill liner buckle-type anchoring device according to claim 1, characterized in that: The lower fixing shell (1) and the upper fixing shell (2) are prefabricated parts made of reinforced concrete. The bottom is a square with a side length of 1000 mm and a height of 230 mm. The middle hollow part has a side length of 850 mm and a height of 180 mm. The side ears (9) are 100 mm wide and 30 mm thick. The radius of the side ear holes (10) is 30 mm.

3. A sanitary landfill liner buckle-type anchoring device according to claim 1, characterized in that: The notch (11) is rectangular, 780 mm long and 40 mm deep.

4. The buckle-type anchoring device for sanitary landfill liner according to claim 1, characterized in that: The circular hole (12) at the bottom of the lower fixed shell has a radius of 50 mm.

5. The buckle-type anchoring device for sanitary landfill liner according to claim 1, characterized in that: The opening frame (3) is a square reinforced concrete prefabricated part with an outer side length of 800 mm, an inner side length of 560 mm, and a height of 200 mm.

6. The buckle-type anchoring device for sanitary landfill liner according to claim 1, characterized in that: The concrete anchor pile (8) is 2 m long, 20 cm in diameter, has a conical bottom, and is provided with a reserved hole at the top.

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