CN111119247A

CN111119247A - Sanitary landfill liner layer buckle belt type anchoring device

Info

Publication number: CN111119247A
Application number: CN202010109118.3A
Authority: CN
Inventors: 方瑞东; 李明飞
Original assignee: Shenyang University of Technology
Current assignee: Shenyang University of Technology
Priority date: 2020-02-21
Filing date: 2020-02-21
Publication date: 2020-05-08

Abstract

The utility model provides a sanitary landfill backing layer detains belt anchor, belongs to sanitary landfill technical field, the device is including lower set casing, last set casing, mouthful sub-frame, the device is in the middle platform of seting up between upper segment and the lower extreme of landfill side slope upper end, the casing links to each other with the concrete anchor stake is fixed, downhill path backing layer one end twines on mouthful sub-frame and places in the casing, downhill path backing layer other parts are stretched out outward by the casing and are placed in on the side slope. The device adopts the mouth subframe winding downhill path bedding layer, arranges in lower stationary casing, goes up the stationary casing combination and for the casing, and with concrete anchor stake fixed connection, can play firm fixed action to the bedding layer, can solve or improve traditional slot anchorage system engineering volume big, the period of operation is long, the maintenance is consolidated the difficulty scheduling problem.

Description

Sanitary landfill liner layer buckle belt type anchoring device

Technical Field

The invention belongs to the technical field of sanitary landfill sites, and particularly relates to a backing layer buckle belt type anchoring device for a sanitary landfill site.

Background

With the development of national economy and the improvement of urbanization level, the generation amount of municipal solid waste is increased sharply. There are three main final disposal methods for municipal solid waste: sanitary landfill, composting and incineration. Among them, sanitary landfill is the most common garbage disposal technology in the world at present. On the basis of scientific site selection, necessary site protection treatment means and reasonable landfill structure are adopted to reduce and eliminate the influence of garbage on the environment, especially on the pollution of underground water bodies to the greatest extent. In recent years, many cities have built large domestic waste landfills in succession.

In municipal sanitary landfills, a liner system must be provided to prevent leachate from penetrating into the ground and causing contamination of the groundwater. In the process of landfill, the garbage is filled in layers and blocks, tension is formed in the liner layer due to continuous accumulation and continuous compression of the garbage and the action of a landfill operation vehicle, the liner system can lose the original action, and in order to prevent the phenomenon, an anchoring area is generally arranged at the top end of the side slope or at the platform of the sectional side slope.

The liner layer of the refuse landfill is anchored by a groove anchoring system, the edges of the geomembrane and the protective fabric are folded in the groove and are fixed by pouring cement concrete. The side wall and the bottom surface of the groove need to be reinforced in the construction process of the traditional groove anchoring system, the engineering quantity is large, and the concrete pouring and the maintenance period of a long time are performed on the backing layer, so that the traditional groove anchoring system has certain limitations in the aspects of functionality and practicability.

Disclosure of Invention

The invention provides a buckling belt type anchoring device for a liner layer of a sanitary landfill site, which is characterized in that an opening frame is wound on the liner layer of a downward slope section, is arranged in a shell formed by combining a lower fixing shell and an upper fixing shell and is fixedly connected with a concrete anchor pile, can play a firm fixing role for the liner layer, and can solve or improve the problems of large engineering quantity, long construction period, difficult maintenance and reinforcement and the like of a traditional groove anchoring system.

The technical scheme adopted by the invention is as follows:

the utility model provides a sanitary landfill backing layer detains belt anchor, contains the backing, the backing includes uphill section backing, downhill path section backing, the device is including lower set casing, last set casing, mouthful sub-frame, lower set casing, last set casing combination are the casing, mouthful sub-frame is arranged in the casing, device in the middle platform of seting up between upper segment and the lower extreme of landfill side slope upper end, middle platform below is equipped with the concrete anchor pile, the casing links to each other with the concrete anchor pile is fixed, downhill path section backing one end twines on mouthful sub-frame, and place in the casing, downhill path section backing all the other parts are stretched out outward by the casing and are arranged in on the side slope, uphill section backing is laid to casing top back by the uphill section and is lapped in downhill path section backing top, the two overlap joint welded fastening.

Furthermore, side lugs are arranged on two sides of the lower fixing shell and the upper fixing shell, side lug round holes are formed in the side lugs, and the lower fixing shell and the upper fixing shell are connected through bolts.

Furthermore, notches are formed in the corresponding positions of the lower fixing shell and the upper fixing shell on the same side, and the liner layer of the downward slope section extends out of the shell from the notches to be arranged on a side slope.

Furthermore, a lower fixing shell bottom round hole is formed in the bottom of the lower fixing shell, and the lower fixing shell is connected with the top of the concrete anchor pile through an expansion bolt and a rubber sheet which are arranged in the lower fixing shell bottom round hole.

Furthermore, the lower fixing shell and the upper fixing shell are prefabricated parts made of reinforced concrete materials, the bottom of each prefabricated part is a square with the side length of 1000mm and the height of 230mm, the middle hollow part is 850mm in side length, 180mm in height, 100mm in side lug width, 30mm in thickness and 30mm in side lug circular hole radius.

Further, the notch is rectangular, 780mm long and 40mm deep.

Further, the radius of the round hole at the bottom of the lower fixing shell is 50 mm.

Further, the mouth frame is a square reinforced concrete prefabricated part, and the outer side length is 800mm, the inner side length is 560mm, and the height is 200 mm.

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

Further, the liner layer of the downward slope section winds from the bottom of one side of the opening frame to the top of the side, winds the opposite bottom and winds from the top of the opposite side.

The invention has the advantages and effects that:

the invention provides a novel assembly type anchoring structure for a liner layer of a sanitary landfill, which is characterized in that an opening frame is wound on the liner layer of a downward slope section, and the opening frame is arranged in a shell formed by combining a lower fixing shell and an upper fixing shell and is fixedly connected with a concrete anchor pile, so that the liner layer can be firmly fixed. The prefabricated steel pipe can be prefabricated in a factory, constructed in an on-site assembly mode, parts are manufactured in a standardized mode, the working efficiency can be improved, and the construction period can be shortened. On the premise of meeting the anchoring technical requirements, the problems of large engineering quantity, long construction period, difficult maintenance and reinforcement and the like of the traditional groove anchoring system can be solved.

Drawings

FIG. 1 is a cross-sectional view of the fastener type anchor structure of the liner layer of the sanitary landfill site;

FIG. 2 is a plan view of the lower retaining shell;

FIG. 3 is a side view of the lower retaining shell;

FIG. 4 is a perspective view of the upper stationary shell;

FIG. 5 is a plan view of the upper retaining shell;

FIG. 6 is a perspective view of the mouth frame;

FIG. 7 is a plan view of the mouth frame;

FIG. 8 is a schematic view of a lower liner layer socket subframe path;

FIG. 9 is a perspective view of the upper and lower fixing shells and the conventional bolt;

fig. 10 is a perspective view of the upper fixing case, the lower fixing case, and the opening frame.

In the figure: the concrete anchor pile is characterized in that the concrete anchor pile comprises a lower fixing shell 1, an upper fixing shell 2, a mouth frame 3, a middle platform 4, an ascending section liner layer 5, a descending section liner layer 6, a side slope 7, a concrete anchor pile 8, a side lug 9, a side lug round hole 10, a notch 11, a lower fixing shell bottom round hole 12, an expansion bolt 13, a rubber sheet 14, a welding point 15 and a bolt 16.

Detailed Description

The invention is further explained below with reference to the figures and the examples.

A sanitary landfill liner layer buckle belt type anchoring structure comprises a lower fixing shell, an upper fixing shell, a mouth frame, concrete anchor piles, expansion bolts and rubber sheets; an ascending section liner layer and a descending section liner layer are arranged on a side slope of the refuse landfill; a lower fixing shell is embedded in the middle platform of the side slope and is fixed at the upper end of the concrete anchor pile through a round hole at the bottom of the lower fixing shell by using an expansion bolt and a rubber sheet; the slope section liner layer is inserted into the mouth frame in a certain sequence, the mouth frame and the slope section liner layer wound on the mouth frame are arranged in the lower fixing shell, side lugs are arranged on two sides of the upper fixing shell and the lower fixing shell, and side lug round holes are formed in the side lugs; the upper fixing shell and the lower fixing shell are connected through round holes in the side lugs by adopting common bolts. The backing layer of the ascending slope section and the backing layer of the descending slope section are overlapped at the welding point in a welding mode, and continuity is kept.

Further, the lower fixing shell and the upper fixing shell are prefabricated parts made of reinforced concrete materials, the bottom of each prefabricated part is a square with the side length of 1000mm and the height of 230mm, the side length of a middle hollow part is 850mm and the height of 180mm, and the radius of a round hole at the bottom of the lower fixing shell is 50 mm; the width of the lateral ear is 100mm, the thickness is 30mm, and the radius of the round hole of the lateral ear is 30 mm; one side edge has a rectangular notch 780mm long and 40mm deep to provide space for penetration of the underlying backing layer.

Further, the mouth frame is the square reinforced concrete prefab, and outside side length 800mm, inside side length 560mm, height 200 mm.

Furthermore, the concrete anchor pile is 2m long, 20cm in diameter, conical in bottom and provided with a preformed hole at the upper end, so that an expansion bolt can be conveniently inserted.

Example 1

As shown in fig. 1, the present invention is a buckle type anchoring structure for a liner layer of a sanitary landfill, comprising a lower fixing shell (see fig. 2 and 3 in detail), an upper fixing shell (see fig. 4 and 5 in detail), a mouth frame (see fig. 6 and 7 in detail), a concrete anchor pile, an expansion bolt and a rubber sheet; an ascending section liner layer and a descending section liner layer are arranged on a side slope of the refuse landfill; a lower fixing shell is embedded in the middle platform of the side slope and is fixed at the upper end of the concrete anchor pile through a circular hole at the bottom of the lower fixing shell by using an expansion bolt and a rubber sheet; the slope section lining layer is inserted into the mouth sub-frame in the order shown in fig. 8, and the slope section lining layer winds from the bottom of one side of the mouth sub-frame to the top of the side, then winds around the opposite bottom, and winds out from the top of the opposite side. The mouth frame and the liner layer of the downward slope section wound on the mouth frame are arranged in the lower fixed shell, side lugs are arranged on two sides of the upper fixed shell and the lower fixed shell, and side lug round holes are formed in the side lugs; the upper fixing shell and the lower fixing shell are connected through round holes on the side lugs by adopting common bolts, as shown in fig. 9 and 10. The ascending section liner layer and the descending section liner layer are overlapped at the welding point in a welding mode, and continuity is kept.

The lower fixed shell and the upper fixed shell are prefabricated parts made of reinforced concrete materials, the bottom of each prefabricated part is a square with the side length of 1000mm and the height of 230mm, the side length of the middle hollow part is 850mm and the height of 180mm, and the radius of a round hole at the bottom of the lower fixed shell is 50 mm; the width of the lateral ear is 100mm, the thickness is 30mm, and the radius of the round hole of the lateral ear is 30 mm; one side edge is provided with a rectangular notch which is 780mm long and 40mm deep and provides space for the liner layer of the descending slope section to penetrate.

The mouth frame is the square reinforced concrete prefab, and outside length of side is 800mm, and inside length of side 560mm, height 200 mm. The liner layer of the downward slope section is inserted into the mouth frame according to the path shown in figure 1, and the liner layer is fixed through the characteristic that the upper and lower fixing shells cannot rotate relatively.

The concrete anchor pile is 2m long, 20cm in diameter, conical in bottom and provided with a preformed hole at the upper end, so that an expansion bolt can be conveniently inserted.

Claims

1. A buckle-type anchoring device for a sanitary landfill liner layer, comprising a liner layer, characterized in that: the liner layer comprises an upslope section liner layer (5), a downslope section liner layer (6) ), the device comprises a lower fixed shell (1), an upper fixed shell (2), and an opening frame (3). (3) The device is placed in the shell, and the device is placed in an intermediate platform (4) between the upper section and the lower end of the upper end of the landfill slope, and a concrete anchor pile (8) is arranged under the intermediate platform (4), The shell is fixedly connected to the concrete anchor pile (8), one end of the downslope section lining layer (6) is wound on the opening frame (3), and is placed in the shell, and the downslope section lining layer ( 6) The rest is protruded from the shell and placed on the side slope (7), the upslope section liner (5) is laid from the upslope section to the top of the shell and then overlapped with the downslope section liner (6) Above, the lap joint of the two is welded and fixed.

2. A buckle-type anchoring device for a sanitary landfill liner layer according to claim 1, characterized in that: side ears (9) are provided on both sides of the lower fixing shell (1) and the upper fixing shell (2). ), a side ear circular hole (10) is provided on the side ear, and the lower fixing shell (1) and the upper fixing shell (2) are connected by bolts (16).

3 . The buckle-type anchoring device for the liner layer of a sanitary landfill according to claim 1 , wherein the lower fixing shell ( 1 ) and the upper fixing shell ( 2 ) are provided with recesses at corresponding positions on the same side. 4 . A mouth (11), the downslope section liner layer (6) is protruded from the notch (11) to the outside of the casing and placed on the side slope (7).

4 . The buckle-type anchoring device for the liner layer of a sanitary landfill according to claim 1 , wherein the bottom of the lower fixing shell ( 1 ) is provided with a circular hole ( 12 ) at the bottom of the lower fixing shell. The lower fixing shell (1) is connected with the top of the concrete anchor pile (8) via expansion bolts (13) and rubber sheets (14) arranged in the circular hole (12) at the bottom of the lower fixing shell.

5. A buckle-type anchoring device for a sanitary landfill liner layer according to claim 2, characterized in that: the lower fixing shell (1) and the upper fixing shell (2) are prefabricated reinforced concrete materials, 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 side lugs (9) are 100mm wide and 30mm thick.

6 . The buckle-type anchoring device for the liner layer of a sanitary landfill according to claim 3 , wherein the notch ( 11 ) is a rectangle with a length of 780 mm and a depth of 40 mm. 7 .

7 . The buckle-type anchoring device for the liner layer of a sanitary landfill according to claim 4 , wherein the circular hole ( 12 ) at the bottom of the lower fixed shell has a radius of 50 mm. 8 .

8 . The buckle-type anchoring device for the liner layer of a sanitary landfill according to claim 1 , wherein the opening frame ( 3 ) is a square reinforced concrete prefabricated part with an outer side length of 800 mm and an inner side length of 800 mm. 9 . 560mm, height 200mm.

9 . The buckle-type anchoring device for the liner layer of a sanitary landfill according to claim 1 , wherein the concrete anchor pile ( 8 ) has a length of 2 m, a diameter of 20 cm, a tapered bottom, and an upper end with a There are reserved holes.

10 . The buckle-type anchoring device for the liner layer of a sanitary landfill according to claim 1 , wherein the liner layer ( 6 ) in the downslope section is wound around the bottom of one side of the opening frame ( 3 ). 11 . To the upper part of the side, and then around the opposite bottom, and out from the upper part of the opposite side.