CN111119248A

CN111119248A - Landfill tenon fourth of twelve earthly branches formula bedding fixing device

Info

Publication number: CN111119248A
Application number: CN202010109121.5A
Authority: CN
Inventors: 宋凡; 李明飞; 霍欣雨; 张雪梅; 李欢; 武帅斌
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

A tenon-and-mortise type backing layer fixing device for a landfill site comprises a foundation anchoring block, an auxiliary anchoring block, a bolt rod and a limiting pile, wherein the limiting pile is inserted into a lower foundation through a reserved limiting pile hole; the foundation anchoring block is provided with an A tenon, a B mortise and a C semicircular lower groove, and the auxiliary anchoring block is provided with an A mortise, a B tenon and a C semicircular upper groove; the liner layer is laid between the butt joints of the foundation anchoring blocks and the auxiliary anchoring blocks from the side slope and is arranged between the bolt rod and the C semicircular lower groove. The tenon-and-mortise type bedding layer fixing device for the landfill site can solve the problems that the traditional concrete pouring fixing form is long in construction period, difficult to maintain and reinforce and the like. The integrity of the backing layer can be maintained while the backing layer is fixed, and leakage is prevented from being caused.

Description

Landfill tenon fourth of twelve earthly branches formula bedding fixing device

Technical Field

The invention belongs to the technical field of environmental geotechnical engineering, and particularly relates to a tenon-and-mortise type backing layer fixing device for a landfill.

Background

The sanitary landfill is the most common garbage disposal technology in the world, and adopts necessary site protection treatment means and reasonable landfill structure on the basis of scientific site selection so as to reduce and eliminate the influence of the garbage on the environment, especially on the pollution of underground water bodies to the maximum extent. Particularly, in economically developed countries, garbage burning is greatly reduced from the viewpoints of health, environmental protection and low carbon, and the proportion of sanitary landfill treatment is obviously increased after 2000 years. Along with the increasing importance of people on sanitary landfill sites, the process flow, facility construction and operation management of refuse landfill are more and more environment-friendly, strict and standard.

In municipal sanitary landfills, a liner system must be provided to prevent leachate from penetrating into the ground and causing contamination of the groundwater. The liner layer comprises geomembrane and geotextile. The geomembrane is a flexible waterproof geosynthetic material, has high seepage-proofing coefficient and good chemical stability, can resist corrosion of strong acid, alkali and oil, is a good anticorrosive material, has good heat resistance and cold resistance, and has long service life. The geotextile is used for protecting the geomembrane and preventing the geomembrane from being punctured by a hard object. The continuous accumulation and compaction of the waste during the landfill process, and the action of the landfill vehicle, will create tension in the bedding layer. To prevent shifting and excessive deformation of the liner layer, the fixing is typically made at the top of the slope or at the platform of the segmented slope. In order to prevent the seepage-proofing function of the liner layer from being damaged, the liner layer can not be fixed by adopting a penetrating mode such as a rivet except the edge. At present, in municipal solid waste landfill sites, concrete pouring type fixing methods are applied more, and generally a rectangular groove is excavated first, and a liner layer is poured and fixed in the groove by cement concrete. The traditional concrete pouring and fixing method needs to reinforce the side wall and the bottom surface of the groove in the construction process, so that the engineering quantity is large, the concrete on the liner layer needs to be maintained, and the construction period is long. In addition, if the liner layer under the concrete is damaged, the concrete pouring body needs to be broken in maintenance and reinforcement, and the engineering quantity is large.

Disclosure of Invention

In order to solve the technical problems, the invention provides a tenon-and-mortise type bedding layer fixing device for a landfill, which adopts an assembly type structure and can solve the problems of long construction period, difficult maintenance and reinforcement and the like of the traditional concrete pouring and fixing mode.

The technical scheme adopted by the invention is as follows: a tenon-and-mortise type backing layer fixing device for a landfill site comprises a backing layer, wherein the device comprises a base anchoring block, an auxiliary anchoring block, a bolt rod and a limiting pile, wherein the base anchoring block is provided with a reserved limiting pile hole, the limiting pile is inserted into a lower foundation through the reserved limiting pile hole, and the top of the limiting pile is flush with the top surface of the base anchoring block; the foundation anchoring block is provided with an A tenon, a B mortise and a C semicircular lower groove, and the auxiliary anchoring block is provided with an A mortise, a B tenon and a C semicircular upper groove; the base anchor piece matches with supplementary anchor piece butt joint back tenon and the groove of the fourth of the twelve earthly branches, and B tenon matches with the groove of the fourth of the twelve earthly branches, C semicircle lower groove and C semicircle upper groove surround and form the keyhole, the keyhole is equipped with the peg, the bedding is laid to base anchor piece and is assisted between the anchor piece butt joint from the side slope, and the bedding is arranged in between peg and the C semicircle lower groove.

Further, the liner layer is composed of a protective geotextile and an impermeable membrane, and the impermeable membrane is arranged between the upper protective geotextile and the lower protective geotextile.

Further, the base anchoring block and the auxiliary anchoring block are made of reinforced concrete materials, the length of each segment is 2000mm, the height of each segment is 600mm, and the width of the bottom surface of the base anchoring block and the width of the top surface of the auxiliary anchoring block are both 1000 mm.

Further, the arc radius of the head parts of the tenon A and the tenon B is 50mm; the arc radius of the inner parts of the A-mortise groove and the B-mortise groove is 65 mm.

Further, the bolt rod is made of reinforced concrete materials, the length of each section is 2000mm, and the radius of each section is 80 mm.

Further, the radius of the lower groove of the C semicircle is 95mm, and the radius of the upper groove of the C semicircle is 80 mm.

Furthermore, the cross section of each limiting pile is square, the bottom of each limiting pile is conical, the length of each pile is 1200mm, the cross section of each reserved limiting pile hole is square, the side length of each reserved limiting pile hole is 110mm, two limiting pile sections are arranged, the inner distance is 1090mm, and a gap between each reserved limiting pile hole and each limiting pile is filled with a cementing material.

Further, arc chamfers are arranged at the corners of the top surface of the base anchoring block and the corners of the bottom of the auxiliary anchoring block.

The invention has the advantages and effects that:

the tenon-and-mortise type bedding layer fixing device for the landfill can adopt factory prefabrication and field assembly type construction, parts are manufactured in a standardized mode, the working efficiency can be improved, and the construction period can be shortened. The problems of long construction period, difficult maintenance and reinforcement and the like of the traditional concrete pouring and fixing form can be solved. The integrity of the backing layer can be maintained while the backing layer is fixed, and leakage is prevented from being caused.

Drawings

FIG. 1 is an overall cross-sectional view of the present invention;

FIG. 2 is a side view of a base anchor block;

FIG. 3 is a side view of a secondary anchor block;

FIG. 4 is a front view of the base anchor block;

FIG. 5 is a cross-sectional view of the latch rod;

fig. 6 is a front view of a limit post.

In the figure: 1 is a side slope, 2 is a lining layer, 3 is protective geotextile, 4 is an impermeable membrane, 5 is a foundation anchoring block, 5-1 is an A tenon, 5-2 is a B mortise groove, 5-3 is a C semicircular lower groove, 5-4 is a reserved limiting pile hole, 6 is an auxiliary anchoring block, 6-1 is an A mortise groove, 6-2 is a B tenon, 6-3 is a C semicircular upper groove, 7 is a bolt rod, and 8 is a limiting pile.

Detailed Description

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

As shown in figure 1, the invention relates to a fixing device for a tenon-and-mortise type backing layer of a landfill, which consists of a limiting pile 8, a base anchoring block 5, an auxiliary anchoring block 6 and a bolt 7. Arranging a liner layer 2 on a side slope 1 of a refuse landfill, wherein the liner layer 2 is specifically composed of a protective geotextile 3 and an impermeable membrane 4; the foundation anchoring block 5 is provided with reserved limiting pile holes 5-4, the limiting piles 8 are inserted into the lower foundation through the reserved limiting pile holes 5-4, the tops of the limiting piles 8 are flush with the top surface of the foundation anchoring block 5, and the foundation anchoring block 5 is fixed on the foundation. As shown in FIG. 2, the base anchoring block 5 is provided with a tenon A5-1, a mortise B5-2 and a semicircular lower groove C5-3; as shown in figure 3, the auxiliary anchoring block 6 is provided with a mortise A groove 6-1, a tenon B6-2 and a semicircular upper groove 6-3. The cross sections of the base anchoring block 5 and the auxiliary anchoring block 6 are L-shaped and spliced to form a rectangle, an inward concave B-shaped mortise 5-2 is arranged at the inner corner of the L-shaped base anchoring block 5, an outward convex A tenon 5-1 is arranged at the tail end of the base anchoring block, an inward concave A-shaped mortise 6-1 is arranged at the inner corner of the L-shaped auxiliary anchoring block 6, an outward convex B tenon 6-2 is arranged at the tail part of the L-shaped base anchoring block 5, an inward C semicircular lower groove 5-3 and a C semicircular upper groove 6-3 are arranged in the middle of the splicing seam of the base anchoring block 5 and the auxiliary anchoring block 6, and a liner layer 2 is extruded between the base anchoring block 5 and the auxiliary anchoring block 6; the tenon 5-1 corresponds to the mortise A6-1, and the liner layer 2 is arranged between the tenon and the mortise A6-1; the tenon 6-2 corresponds to the mortise B slot 5-2, and the liner layer 2 is arranged between the tenon and the mortise B slot. The bolt 7 is inserted into a bolt hole formed by the encircling of the lower groove 5-3 of the semicircle C and the upper groove 6-3 of the semicircle C, and the cushion layer 2 is extruded between the bolt 7 and the lower groove 5-3 of the semicircle C.

As shown in FIG. 4, the foundation anchor block 5 and the auxiliary anchor block 6 are made of reinforced concrete material, and have a segment length of 2000mm and a height of 600 mm. The widths of the bottom surface of the base anchoring block 5 and the top surface of the auxiliary anchoring block 6 are both 1000 mm.

The arc radiuses of the tenon heads A and B are 50mm, and the arc radiuses of the inner parts of the mortise grooves A and B are 6-1 and 5-2 are 65 mm;

the bolt 7 shown in figure 5 is of reinforced concrete material and has a segment length of 2000mm and a radius of 78 mm; the base anchor block 5 and secondary anchor block 6 segments are inserted into the key holes from the side after being installed in place. The function is to limit the horizontal relative displacement of the base anchor block and the auxiliary anchor block, and in addition, the cushion layer 2 can be pressed and fixed.

The radius of the lower groove 5-3 of the semicircle C is 95mm, and the radius of the upper groove 6-3 of the semicircle C is 80 mm. The radius of the lower groove 5-3 of the C semicircle is larger than the radius of the upper groove 6-3 of the C semicircle, so that space is provided for the liner layer 2.

As shown in fig. 6, the section of the limiting pile 8 is square, the bottom of the limiting pile is conical, the pile length is 1200mm, the section of the reserved limiting pile hole 5-4 is square, the side length is 110mm, two limiting pile holes are arranged in each segment, the inner distance is 1090mm, and a gap between the reserved limiting pile hole 5-4 and the limiting pile 8 is filled with a cementing material to fixedly connect the two limiting pile holes.

Arc chamfers with the radius of 50mm are arranged at the corners of the top surface of the base anchoring block 5 and the corners of the bottom of the auxiliary anchoring block 6 so as to prevent the cushion layer 2 from being damaged by the corners of the anchoring block.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a landfill tenon fourth of twelve earthly branches formula bedding fixing device, includes bedding (2), its characterized in that: the device comprises a base anchoring block (5), an auxiliary anchoring block (6), a bolt rod (7) and a limiting pile (8), wherein a reserved limiting pile hole (5-4) is formed in the base anchoring block (5), the limiting pile (8) is inserted into a lower foundation through the reserved limiting pile hole (5-4), and the top of the limiting pile (8) is flush with the top surface of the base anchoring block (5); the foundation anchoring block (5) is provided with an A tenon (5-1), a B mortise (5-2) and a C semicircular lower groove (5-3), and the auxiliary anchoring block (6) is provided with an A mortise (6-1), a B tenon (6-2) and a C semicircular upper groove (6-3); the base anchoring block (5) and the auxiliary anchoring block (6) are butted, a tenon (5-1) is matched with the mortise groove A (6-1), a tenon (6-2) is matched with the mortise groove B (5-2), the semicircular lower groove C (5-3) and the semicircular upper groove C (6-3) are encircled to form a bolt hole, a bolt rod (7) is arranged in the bolt hole, the backing layer (2) is paved between the base anchoring block (5) and the auxiliary anchoring block (6) in a butt joint mode from a side slope, and the backing layer (2) is arranged between the bolt rod (7) and the semicircular lower groove C (5-3).

2. The fixing device for the tenon-and-mortise type cushion layer of the landfill site according to claim 1, wherein: the liner layer (2) is composed of a protective geotextile (3) and an impermeable membrane (4), and the impermeable membrane (4) is arranged between the upper protective geotextile and the lower protective geotextile (3).

3. The fixing device for the tenon-and-mortise type cushion layer of the landfill site according to claim 1, wherein: the foundation anchor block (5) and the auxiliary anchor block (6) are made of reinforced concrete materials, the length of each segment is 2000mm, the height of each segment is 600mm, and the width of the bottom surface of the foundation anchor block (5) and the width of the top surface of the auxiliary anchor block (6) are both 1000 mm.

4. The fixing device for the tenon-and-mortise type cushion layer of the landfill site according to claim 1, wherein: the arc radiuses of the heads of the tenon A (5-1) and the tenon B (6-2) are 50mm; the arc radiuses of the inner parts of the A-mortise groove (6-1) and the B-mortise groove (5-2) are 65 mm.

5. The fixing device for the tenon-and-mortise type cushion layer of the landfill site according to claim 1, wherein: the bolt rod (7) is made of reinforced concrete materials, the length of each section is 2000mm, and the radius of each section is 78 mm.

6. The fixing device for the tenon-and-mortise type cushion layer of the landfill site according to claim 1, wherein: the radius of the lower semicircular groove (5-3) of the C is 95mm, and the radius of the upper semicircular groove of the C is 80 mm.

7. The fixing device for the tenon-and-mortise type cushion layer of the landfill site according to claim 1, wherein: spacing stake (8) cross-section be the square, the bottom is the toper, stake length 1200mm, reserve spacing stake hole cross-section and be the square, length of side 110mm, every festival section sets up two, interior interval 1090mm, reserve the gap between spacing stake hole and the spacing stake and fill cementing material.

8. The fixing device for the tenon-and-mortise type cushion layer of the landfill site according to claim 1, wherein: and arc chamfers are arranged at the corners of the top surface of the foundation anchor block (5) and the bottom of the auxiliary anchor block (6).