CN218236435U - A seepage prevention structure that is used for wall pipe is worn to rigid cell body - Google Patents
A seepage prevention structure that is used for wall pipe is worn to rigid cell body Download PDFInfo
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- CN218236435U CN218236435U CN202222488541.6U CN202222488541U CN218236435U CN 218236435 U CN218236435 U CN 218236435U CN 202222488541 U CN202222488541 U CN 202222488541U CN 218236435 U CN218236435 U CN 218236435U
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Abstract
The utility model discloses an anti-seepage structure for a rigid cell body through-wall pipe, which comprises a rigid cell body, a percolate guide and discharge HDPE pipe and an HDPE flange head; a vertical hole is reserved at the bottom of the rigid tank body, and a waterproof sleeve is pre-buried in the vertical hole; the upper end of the percolate guide and discharge HDPE pipe is fixedly connected with a pipe barrel end of the HDPE flange head and then is arranged in the waterproof sleeve along the vertical direction, the upper surface of a top end disc of the HDPE flange head is flush with the inner wall of the bottom of the rigid tank body, and the lower end of the percolate guide and discharge HDPE pipe is connected with a percolate conveying pipe; a rigid tank body impermeable layer is paved on the wall and the bottom of the rigid tank body, and a gap is arranged on the rigid tank body impermeable layer corresponding to the vertical hole; the rigid tank body impermeable layer comprises an upper membrane protective layer, an HDPE geomembrane impermeable layer and a lower membrane protective layer which are arranged from top to bottom, and the HDPE geomembrane impermeable layer is fixedly connected with the top end disc of the HDPE flange head. The utility model has the advantages of rationality, security, reliability, the "floor drain formula" filtration liquid drainage guide structure that makes the rigidity landfill cell body is safer, and the risk type that the seepage appears is littleer.
Description
Technical Field
The utility model relates to a rigidity cell body prevention of seepage technical field, concretely relates to an anti-seepage structure that is used for wall pipe is worn to rigidity cell body.
Background
After the standard hazardous waste landfill pollution control standard (GB 18598-2019) is released and implemented, the reinforced concrete is adopted as the rigid landfill of the anti-seepage barrier structure, so that the construction of the safe landfill becomes an effective choice. In a rigid landfill structure, percolate collecting and draining are indispensable structures. On one hand, the construction requirement of the joint of the HDPE pipe at the wall penetrating position of the percolate pipe, the HDPE geomembrane and the concrete is higher, the leakage risk is larger, and the later-stage maintenance cannot be carried out; on the other hand, the thermal expansion coefficient of concrete is 8 to 12X 10 -6 The coefficient of thermal expansion of the high density polyethylene pipe is 180X 10 ℃ per DEG C -6 The difference in thermal expansion coefficients between the two different materials is about 15-22.5 times, a large difference.
At present, the HDPE pipe of the 'floor drain type' percolate collecting and guiding pipe and the HDPE geomembrane of the impermeable membrane are welded and fixed on the HDPE pipe by adopting extrusion welding for connection and sealing, the welding surface is narrow and is smaller than the standard requirement of extrusion welding, and the method belongs to the welding between points; under the condition that the other end of the HDPE pipe is relatively fixed, when the external temperature changes or the external force acts, the extrusion welding seam between the HDPE pipe and the HDPE geomembrane is easily torn, the extrusion welding seam is a weak point of an anti-seepage structure of a rigid landfill, and the risk of breakage and leakage is more easily caused in the subsequent operation process. Therefore, the anti-seepage structure technology for the rigid tank body wall-penetrating pipe is researched, and the problem of tearing risk of a welding seam caused by temperature and external force is urgently solved.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists among the prior art, the utility model provides an anti-seepage structure that is used for rigid cell body to wear wall pipe to solve "floor drain formula" filtration liquid and collect the safety problem that HDPE geomembrane and concrete wall body were worn to the drainage pipe.
The utility model discloses an anti-seepage structure for a rigid cell body through-wall pipe, which comprises a rigid cell body, a percolate guide and discharge HDPE pipe and an HDPE flange head;
a vertical hole is reserved at the bottom of the rigid tank body, and a waterproof sleeve is pre-buried in the vertical hole;
the upper end of the percolate guide and discharge HDPE pipe is fixedly connected with the pipe barrel end of the HDPE flange head and then is arranged in the waterproof sleeve along the vertical direction, the upper surface of the top end disc of the HDPE flange head is flush with the inner wall of the bottom of the rigid tank body, and the lower end of the percolate guide and discharge HDPE pipe is connected with a percolate conveying pipe;
rigid tank body impermeable layers are paved on the tank wall and the tank bottom of the rigid tank body, and notches are formed in the rigid tank body impermeable layers corresponding to the vertical holes;
rigid cell body barrier includes from last protective layer, HDPE geomembrane barrier and the lower protective layer of membrane that sets gradually down, HDPE geomembrane barrier with fixed connection all around the top dish of HDPE flange head.
As a further improvement of the utility model, the rigid tank body is a concrete tank body, the tank body thickness of the concrete tank body is not less than 350mm.
As a further improvement of the utility model, the tube end of the HDPE flange head is connected with the upper end of the percolate guide drainage HDPE tube by welding;
the upper surface of the top end disc of the HDPE flange head is connected and sealed with the HDPE geomembrane impervious layer through extrusion welding.
As the utility model discloses a further improvement, HDPE flange head's pipe diameter, wall thickness all with filtration liquid drainage HDPE pipe is unanimous.
As a further improvement of the utility model, the unilateral total width of the top disc of the HDPE flange head is not less than 100mm;
the length of the HDPE flange head is larger than the thickness of the bottom of the rigid tank body.
As a further improvement of the utility model, the protective layer on the film and the protective layer under the film are both 600g/m 2 Filament non-woven geotextile.
As a further improvement of the utility model, the HDPE geomembrane barrier layer is the HDPE geomembrane with the thickness not less than 2.0 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model discloses simple structure, construction convenience has advantages such as rationality, security, reliability, makes "floor drain formula" filtration liquid drainage guide structure of rigidity landfill cell body safer, and the risk type that the seepage appears is littleer.
The utility model discloses in through leading row HDPE pipe welded connection with HDPE flange head and filtration liquid to carry out extrusion welding, sealed with the upper surface of the top dish of HDPE flange head and HDPE geomembrane barrier, the upper surface of the top dish of the HDPE flange head of broad satisfies extrusion welding's standard requirement, extend the welding seam between with the point and the point with the face, reduced temperature variation and exogenic action to extrusion welding seam adverse effect, improved the security of extrusion welding seam.
Drawings
Fig. 1 is a schematic structural view of an anti-seepage structure for a rigid cell body wall-penetrating pipe according to an embodiment of the present invention;
fig. 2 is a schematic view of a vertical hole structure of a concrete tank body for an anti-seepage structure of a rigid tank body wall-penetrating pipe according to an embodiment of the present invention;
fig. 3 is a schematic view illustrating welding of an HDPE flange head and an HDPE geomembrane impermeable layer of an impermeable structure for a through-wall pipe of a rigid tank according to an embodiment of the present invention;
fig. 4 is the utility model relates to an embodiment discloses an HDPE flange head and filtration liquid drainage guide HDPE pipe welding schematic diagram that is used for impervious structure of rigid cell body wall pipe.
In the figure:
1. a concrete tank body; 1-1, vertical holes; 2. leachate guide and discharge HDPE (high-density polyethylene) pipes; 3. a HDPE flange head; 301. a tip disk; 302. a tube barrel; 4. a rigid tank impermeable layer; 401. a protective layer under the film; 402. an HDPE geomembrane barrier layer; 403. a protective layer on the film; 5. welding seams between pipelines; 6. and (5) extrusion welding.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
The invention is described in further detail below with reference to the accompanying drawings:
as shown in fig. 1-4, the utility model provides an anti-seepage structure for a rigid cell body wall-penetrating pipe, which comprises a rigid cell body, a percolate guide and discharge HDPE pipe 2 and an HDPE flange head 3; a vertical hole 1-1 is reserved at the bottom of the rigid tank body, and a waterproof sleeve is pre-buried in the vertical hole 1-1;
the upper end of the percolate guide and discharge HDPE pipe 2 is fixedly connected with the pipe barrel 302 of the HDPE flange head 3 and then is arranged in the waterproof sleeve along the vertical direction, the upper surface of the top end disc 301 of the HDPE flange head 3 is flush with the inner wall of the bottom of the rigid tank body, and the lower end of the percolate guide and discharge HDPE pipe 2 is connected with a percolate conveying pipe;
a rigid tank body impermeable layer 4 is paved on the tank wall and the tank bottom of the rigid tank body, and a gap is arranged at the position of the rigid tank body impermeable layer 4 corresponding to the vertical hole 1-1; the rigid tank body impermeable layer 4 comprises an upper membrane protective layer 403, an HDPE geomembrane impermeable layer 402 and a lower membrane protective layer 401 which are sequentially arranged from top to bottom, and the HDPE geomembrane impermeable layer 402 is fixedly connected with the periphery of the top end disc 301 of the HDPE flange head 3.
The utility model discloses simple structure, construction convenience has advantages such as rationality, security, reliability, makes "floor drain formula" filtration liquid leading and discharging structure of rigidity landfill cell body safer, and the risk type that the seepage appears is littleer.
The utility model discloses in through leading 2 welded connection of arranging HDPE pipe with HDPE flange head 3 and filtration liquid to carry out extrusion welding with HDPE geomembrane barrier layer 402 with the upper surface of HDPE flange head 3's top dish 301, it is sealed, the upper surface of the HDPE flange head 3's of broad top dish 301 satisfies extrusion welding's standard requirement, with the spot welding seam between the spot extend to the spot with the face, temperature variation and exogenic action have been reduced to extrusion welding seam adverse effect, the security of extrusion welding seam has been improved.
Specifically, the method comprises the following steps:
as shown in fig. 2, the utility model provides a rigidity cell body is concrete cell body 1, and concrete cell body 1 should be dry, clean, and concrete cell body 1's cell body thickness should satisfy the structural design requirement of rigidity landfill storehouse district, the utility model provides a concrete cell body 1's cell body thickness is not less than 350mm.
Further, the utility model provides a bottom of pool of concrete cell body 1 is equipped with vertical hole 1-1, and vertical hole 1-1 is agreed with HDPE flange head 3 structure in the structure of the installation department of poling department, HDPE flange head 3 to make HDPE flange head 3 place in vertical hole 1-1, and guarantee that the upper surface of HDPE flange head 3's top dish 301 flushes with the bottom of pool inner wall of rigidity cell body.
As shown in fig. 3-4, the utility model provides a welded connection is passed through with filtration liquid guide HDPE pipe 2's upper end to the bobbin 302 end of HDPE flange head 3, and the outer wall of welding seam 5 is polished between the pipeline after the welding, makes HDPE flange head 3, filtration liquid guide HDPE pipe 2 and the outer wall of welding seam 5 all keep unanimous, level and smooth between the pipeline, the utility model provides an HDPE flange head 3 has played the effect of sealing connection filtration liquid guide HDPE pipe 2 and HDPE geomembrane barrier 402 as connecting the lock.
Further, the utility model provides a top dish 301 of HDPE flange head 3's upper surface and HDPE geomembrane barrier layer 402 are sealed through extrusion welded connection, all realize and be notched HDPE geomembrane barrier layer 402's round sealing connection through extrusion welding around the upper surface of HDPE flange head 3's top dish 301 promptly, make HDPE geomembrane barrier layer 402 seal on HDPE flange head 3's top dish 301.
Further, the utility model provides a HDPE flange head 3's pipe diameter, wall thickness all unanimous with filtration liquid drainage guide HDPE pipe 2, the utility model provides an HDPE flange head 3's pipe diameter is DN110-DN200 preferentially to satisfy the filtration liquid drainage guide demand of rigid landfill cell body promptly concrete cell body 1.
Further, the utility model provides a welding platform that HDPE flange head 3's top dish 301 is connected as with HDPE geomembrane barrier 402, and its unilateral total width satisfies extrusion welding's minimum width requirement, the utility model provides a unilateral total width of HDPE flange head 3's top dish 301 is not less than 100mm.
Further, the utility model provides a length of HDPE flange head 3 is greater than the bottom of the pool thickness of rigidity cell body, promptly when actual installation, the bottom of the pool below of rigidity cell body has been arranged in after having passed vertical hole 1-1 to percolate guide and arrange HDPE pipe 2 that has HDPE flange head 3, the upper surface of top dish 301 of HDPE flange head 3 then flushes with the bottom of the pool inner wall of rigidity cell body, percolate guide and arrange HDPE pipe 2's below then with be located the filtration liquid duct connections of rigidity cell body below to the realization is to the effective discharge of the filtration liquid of collecting.
Further, the utility model provides a HDPE flange head 3, filtration liquid lead and arrange HDPE pipe 2 and HDPE geomembrane barrier layer 402 all adopt high density polyethylene material to make, make full use of the extremely low permeability of high density polyethylene material, its osmotic coefficient is less than or equal to 1.0 x 10 -13 g.cm/(cm 2 s.Pa), so that the floor drain type percolate drainage guide structure of the rigid landfill pool body is safer, and the risk of leakage is smaller.
As shown in fig. 3, the utility model provides a protective layer 403 on the membrane and protective layer 401 under the membrane are 600 gm 2 long filament non-woven geotechnological cloth, and HDPE geomembrane barrier 402 is the HDPE geomembrane that thickness is not less than 2.0mm, the utility model provides a HDPE geomembrane, as protective layer 103 on the membrane and the long filament non-woven geotechnological cloth of protective layer 401 under the membrane correspond vertical hole 1-1 and wear wall pipe department promptly and cut out circular breach to seal up between the top dish 301 of HDPE geomembrane and HDPE flange head 3 through extrusion welding mode.
The installation method of the embodiment comprises the following steps:
1) A waterproof sleeve is pre-buried and installed at a position 1-1 of a through-wall pipe reserved at the bottom of the concrete tank body 1;
2) Welding the pipe barrel 302 end of the HDPE flange head 3 with one end of the percolate guide and discharge HDPE pipe 2, and polishing the outer wall of the welding seam 5 among the pipelines until the HDPE flange head 3, the percolate guide and discharge HDPE pipe 2 and the outer wall of the welding seam 5 among the pipelines are consistent and smooth;
3) Placing the welded combination of the HDPE flange head 3 and the percolate guide and discharge HDPE pipe 2 in the vertical hole 1-1, and enabling the upper surface of the top end disc 301 of the HDPE flange head 3 to be flush with the inner wall of the bottom of the concrete tank body 1;
4) Sequentially laying a lower layer of filament non-woven geotextile, an HDPE geomembrane and an upper layer of filament non-woven geotextile in the concrete tank body 1 from bottom to top, and cutting round gaps at positions of the two layers of filament non-woven geotextile and HDPE geomembrane corresponding to the HDPE flange head 3 (namely the vertical hole 1-1);
5) A circle of the circular gap of the HDPE geomembrane is hermetically connected with the upper surface of the top end disc 301 of the HDPE flange head 3 in an extrusion welding mode;
6) And after the extrusion welding is finished, the installation of the anti-seepage structure of the rigid tank body wall penetrating pipe is finished.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. An anti-seepage structure for a rigid tank body wall penetrating pipe is characterized by comprising a rigid tank body, a percolate guide and discharge HDPE pipe and an HDPE flange head;
a vertical hole is reserved at the bottom of the rigid tank body, and a waterproof sleeve is pre-buried in the vertical hole;
the upper end of the percolate guide and discharge HDPE pipe is fixedly connected with the pipe barrel end of the HDPE flange head and then is arranged in the waterproof sleeve along the vertical direction, the upper surface of the top end disc of the HDPE flange head is flush with the inner wall of the bottom of the rigid tank body, and the lower end of the percolate guide and discharge HDPE pipe is connected with a percolate conveying pipe;
rigid tank body impermeable layers are paved on the tank wall and the tank bottom of the rigid tank body, and notches are formed in the rigid tank body impermeable layers corresponding to the vertical holes;
rigid cell body barrier includes from last protective layer, HDPE geomembrane barrier and the lower protective layer of membrane that sets gradually down, HDPE geomembrane barrier with fixed connection all around the top dish of HDPE flange head.
2. The seepage prevention structure for the rigid cell body through-wall pipe according to claim 1, wherein the rigid cell body is a concrete cell body, and a cell body thickness of the concrete cell body is not less than 350mm.
3. The seepage prevention structure for the rigid cell body through-wall pipe according to claim 1, wherein a tube barrel end of the HDPE flange head is connected with an upper end of the leachate guiding and draining HDPE pipe by welding;
the upper surface of the top end disc of the HDPE flange head is connected and sealed with the HDPE geomembrane impervious layer through extrusion welding.
4. The seepage prevention structure for the through-wall pipe of a rigid tank body according to claim 3, wherein the pipe diameter and the wall thickness of the HDPE flange head are consistent with those of the percolate drainage HDPE pipe.
5. The seepage prevention structure for a rigid cell body through-wall pipe according to claim 3, wherein the single-sided total width of the top end disk of the HDPE flange head is not less than 100mm;
the length of the HDPE flange head is larger than the thickness of the bottom of the rigid tank body.
6. The impermeable construction for a rigid cell body through-wall pipe of claim 1, wherein the protective layer above and below the membrane are both 600g/m 2 Filament non-woven geotextile.
7. The impermeable structure for a rigid cell body through-wall pipe according to claim 1, wherein the HDPE geomembrane impermeable layer is an HDPE geomembrane having a thickness of not less than 2.0 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222488541.6U CN218236435U (en) | 2022-09-20 | 2022-09-20 | A seepage prevention structure that is used for wall pipe is worn to rigid cell body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222488541.6U CN218236435U (en) | 2022-09-20 | 2022-09-20 | A seepage prevention structure that is used for wall pipe is worn to rigid cell body |
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| Publication Number | Publication Date |
|---|---|
| CN218236435U true CN218236435U (en) | 2023-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222488541.6U Active CN218236435U (en) | 2022-09-20 | 2022-09-20 | A seepage prevention structure that is used for wall pipe is worn to rigid cell body |
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| CN (1) | CN218236435U (en) |
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- 2022-09-20 CN CN202222488541.6U patent/CN218236435U/en active Active
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