CN115075305A - Basement waterproof structure and construction method - Google Patents
Basement waterproof structure and construction method Download PDFInfo
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- CN115075305A CN115075305A CN202210935864.7A CN202210935864A CN115075305A CN 115075305 A CN115075305 A CN 115075305A CN 202210935864 A CN202210935864 A CN 202210935864A CN 115075305 A CN115075305 A CN 115075305A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/02—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against ground humidity or ground water
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
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- General Life Sciences & Earth Sciences (AREA)
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- Hydrology & Water Resources (AREA)
- Underground Structures, Protecting, Testing And Restoring Foundations (AREA)
Abstract
The invention discloses a basement waterproof structure and a construction method, and belongs to the technical field of basement construction. The waterproof structure comprises a waterproof wall, wherein the waterproof wall is sequentially provided with a concrete cushion layer, a waterproof coiled material layer, a protective layer, a concrete layer and a basement building surface layer from outside to inside, waterproof paint is brushed on the outer wall of the concrete layer, a cavity is formed in the whole building structure, a plurality of lower clamps are fixedly connected to the inner wall of the bottom of the cavity, and a first groove and a baffle groove are formed in the outer side of the waterproof wall and the inner side of the concrete layer respectively. The invention has simple structure, reasonable design and convenient operation, not only improves the waterproof performance, but also can discharge the underground water outside the waterproof wall and the underground water permeating into the waterproof wall through the water guide pipe by arranging the water guide pipe so as to dredge, replace and repair, and further improve the waterproof effect.
Description
Technical Field
The invention relates to the technical field of basement construction, in particular to a basement waterproof structure and a construction method.
Background
With the development of cities, basements are usually disposed at the bottom of buildings, such as commercial cities, residential areas with two floors as parking lots, and the like, in order to improve the utilization rate of underground spaces, and the basements are usually located in spaces below the ground. Because the basement is under the ground, and top surface, side and bottom surface all are in there is the water environment, do not pay attention to construction method, very easily lead to the basement to leak, influence the use. The existing basement waterproofing method is generally to treat after water seepage occurs, and the nature of the water seepage is that cracks penetrating through the interior and the exterior of a basement appear on the wall surface of the basement, and underground water seeps into the interior of the basement through the cracks. The waterproof treatment method is to fill in the crack position, and the treatment mode is very passive.
Disclosure of Invention
The invention aims to solve the defects in the prior art, and provides a basement waterproof structure and a construction method, which have the advantages of simple structure, reasonable design and convenience in operation, and not only improve the waterproof performance; and through the setting of aqueduct, can pass through the aqueduct with the inside groundwater of infiltration waterproof wall outside with the groundwater of waterproof wall and discharge to dredge and replace the repair, further improved water-proof effects.
In order to achieve the purpose, the invention adopts the following technical scheme:
a basement waterproof structure comprises a waterproof wall, wherein the waterproof wall is sequentially provided with a concrete cushion layer, a waterproof coiled material layer, a protective layer, a concrete layer and a basement building surface layer from outside to inside, the outer wall of the concrete layer is brushed with waterproof paint, the whole building structure is provided with a cavity, the inner wall of the bottom of the cavity is fixedly connected with a plurality of lower clamps, the outer side of the waterproof wall and the inner side of the concrete layer are respectively provided with a first groove and a baffle groove, the inner wall of the left side of the baffle groove is provided with a second groove, the second groove is communicated with the cavity, the first groove and the second groove are movably provided with the same water guide pipe, the water guide pipe is contacted with the lower clamps, the inner walls of the first groove and the second groove are both fixedly connected with sealing rings, the water guide pipes are matched with the sealing rings, the cavity is movably provided with a whole plate, the bottom of the whole plate is fixedly connected with a plurality of upper clamps, and the plurality of upper clamps are respectively matched with the lower clamps, the equal fixedly connected with guide block in both sides of whole board, the equal fixedly connected with guide rail of both sides inner wall of cavity, and two guide blocks are slidable mounting respectively in two guide rails, two solid fixed cylinders of top fixedly connected with of whole board, equal threaded mounting has the lead screw in two solid fixed cylinders, the top of two lead screws is all rotated and is installed on the top inner wall of cavity, all fixed cover is equipped with the worm wheel on two lead screws, the worm is installed in the rotation of the left side inner wall of cavity, the right-hand member of worm extends to in the basement building facing, and fixedly connected with knob.
Preferably, the inner wall fixedly connected with of concrete layer articulates the piece, rotates on the articulated piece and installs the fly leaf.
Preferably, the left side of the movable plate is fixedly connected with an elastic stop block, the elastic stop block is movably installed in the blocking groove, and the elastic stop block is matched with the right end of the water guide pipe.
Preferably, a clamping groove is formed in the bottom of the movable plate, a clamping block is movably inserted in the clamping groove, and a flat plate is fixedly connected to the bottom of the clamping block.
Preferably, two telescopic links are fixedly connected to the bottom of the flat plate, and the bottom ends of the two telescopic links are fixedly connected to the inner wall of the bottom of the concrete layer.
Preferably, a spring is fixedly connected between the bottom of the flat plate and the inner wall of the bottom of the concrete layer, and the spring is positioned between the two telescopic rods.
Preferably, the inner wall of the concrete layer is provided with a plurality of fixing grooves in an annular array by taking the worm as a center, and a fixing rod is movably inserted in one of the fixing grooves.
Preferably, a round hole is formed in one side of the knob, and the fixing rod is slidably mounted in the round hole.
A basement waterproof construction method comprises the following steps:
s1: excavating a soil layer, building a waterproof wall on the side surface and the bottom of the basement, laying a concrete cushion layer on the inner side of the waterproof wall, drying the concrete cushion layer, laying a waterproof coil layer, and airing for h;
s2: paving a protective layer on the inner side of the concrete cushion layer, pouring a concrete layer on the inner side of the protective layer after drying, and coating waterproof paint on the outer side of the concrete layer;
s3: chiseling a cavity on the building wall, and then installing components such as a lower clamp, a whole plate, an upper clamp, a guide block, a guide rail, a fixed cylinder, a screw rod and the like in the cavity;
s4: then inserting the water guide pipe into a first groove and a second groove which are formed in the building wall, rotating the knob to enable the worm to rotate, driving the worm wheel to rotate, enabling the fixing cylinder to move downwards through mechanical transmission, driving the whole plate and the upper clamp to move downwards, and stopping rotating the knob when the upper clamp clamps the water guide pipe;
s5: the hinged block and the movable plate are mounted on the inner side of the building wall body, then the movable plate is used, the elastic stop block is used for blocking one end of the water guide pipe, and then the clamping block is inserted into the clamping groove, so that the position of the movable plate is fixed.
Compared with the prior art, the invention has the following beneficial effects:
the basement waterproof structure and the construction method have the advantages that the structure is simple, the design is reasonable, the operation is convenient and fast, the waterproof performance is improved, underground water outside the waterproof wall and underground water permeating into the waterproof wall can be discharged through the water guide pipe through the arrangement of the water guide pipe, the dredging replaces the repairing, and the waterproof effect is further improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the structure of part A of FIG. 1 according to the present invention;
FIG. 3 is a schematic structural diagram of portion B of FIG. 2 according to the present invention;
FIG. 4 is a schematic structural view of portion C of FIG. 2 according to the present invention;
FIG. 5 is a schematic view of the structure of portion D of FIG. 2 according to the present invention;
FIG. 6 is a schematic view of the structure of part E in FIG. 2 according to the present invention.
In the figure: the concrete waterproof wall comprises a waterproof wall body 1, a concrete cushion layer 2, a waterproof coil material layer 3, a protective layer 4, waterproof paint 5, a concrete layer 6, a basement building surface layer 7, a cavity 8, a lower clamp 9, a first groove 10, a second groove 11, a water guide pipe 13, a sealing ring 14, a whole plate 15, an upper clamp 16, a guide block 17, a guide rail 18, a fixing cylinder 19, a screw rod 20, a worm wheel 21, a worm 22, a knob 23, a hinged block 24, a movable plate 25, an elastic block 26, a clamping groove 27, a clamping block 28, a flat plate 29, a telescopic rod 30, a spring 31, a fixing groove 32, a fixing rod 33 and a round hole 34.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, a basement waterproofing structure comprises a waterproofing wall 1, wherein the waterproofing wall 1 is sequentially provided with a concrete cushion layer 2, a waterproofing coiled material layer 3, a protective layer 4, a concrete layer 6 and a basement building surface layer 7 from outside to inside, the outer wall of the concrete layer 6 is brushed with a waterproofing paint 5, the whole building structure is chiseled with a cavity 8, the inner wall of the bottom of the cavity 8 is welded with a plurality of lower clamps 9, the outer side of the waterproofing wall 1 and the inner side of the concrete layer 6 are respectively chiseled with a first groove 10 and a baffle groove 11, the inner wall of the left side of the baffle groove 11 is chiseled with a second groove 12, the second groove 12 is communicated with the cavity 8, the same water guide pipe 13 is movably arranged in the first groove 10 and the second groove 12, the water guide pipe 13 is in contact with the lower clamps 9, the inner walls of the first groove 10 and the second groove 12 are both welded with a sealing ring 14, the water guide pipe 13 is adapted with the sealing ring 14, the whole plate 15 is movably arranged in the cavity 8, the bottom welding of whole board 15 has a plurality of last anchor clamps 16, and a plurality of last anchor clamps 16 respectively with a plurality of anchor clamps 9 looks adaptations down, guide block 17 has all been welded to the both sides of whole board 15, guide rail 18 has all been welded to the both sides inner wall of cavity 8, and two guide block 17 respectively slidable mounting in two guide rails 18, the top welding of whole board 15 has two solid fixed cylinder 19, equal threaded mounting has lead screw 20 in two solid fixed cylinder 19, the top of two lead screws 20 is all rotated and is installed on the top inner wall of cavity 8, all fixed cover is equipped with worm wheel 21 on two lead screws 20, cavity 8's left side inner wall is rotated and is installed worm 22, the right-hand member of worm 22 extends to in the basement building surface course 7, and the welding has knob 23, rotate knob 23, can drive worm 22 and rotate.
In this embodiment, the inner wall of the concrete layer 6 is welded with the hinge block 24, the hinge block 24 is rotatably provided with the movable plate 25, and the movable plate 25 can freely rotate on the hinge block 24. An elastic stop 26 is welded on the left side of the movable plate 25, the elastic stop 26 is movably installed in the blocking groove 11, the elastic stop 26 is matched with the right end of the water guide pipe 13, and the movable plate 25 rotates to drive the elastic stop 26 to move. The bottom of the movable plate 25 is chiseled with a clamping groove 27, a clamping block 28 is movably inserted in the clamping groove 27, a flat plate 29 is welded at the bottom of the clamping block 28, and the flat plate 29 vertically moves to drive the clamping block 28 to vertically move. The welding of dull and stereotyped 29 bottom has two telescopic links 30, and the bottom of two telescopic links 30 all welds on concrete layer 6's bottom inner wall, telescopic link 30's setting for dull and stereotyped 29 vertical removal. A spring 31 is welded between the bottom of the flat plate 29 and the inner wall of the bottom of the concrete layer 6, the spring 31 is located between the two telescopic rods 30, and the elastic restoring force of the spring 31 can push the flat plate 29 to move upwards. The inner wall of the concrete layer 6 is chiseled with a plurality of fixing grooves 32 in an annular array with the worm 22 as the center, wherein a fixing rod 33 is movably inserted into one fixing groove 32, and the fixing rod 33 can be inserted into or removed from the fixing groove 32. A round hole 34 is chiseled at one side of the knob 23, and the fixing rod 33 is slidably installed in the round hole 34, and the fixing rod 33 can only horizontally move along the round hole 34.
A basement waterproof construction method comprises the following steps:
s1: excavating a soil layer, building a waterproof wall 1 on the side surface and the bottom of the basement, laying a concrete cushion layer 2 on the inner side of the waterproof wall 1, drying the concrete cushion layer 2, laying a waterproof coil layer 3, and airing for 24 hours;
s2: laying a protective layer 4 on the inner side of the concrete cushion layer 2, pouring a concrete layer 6 on the inner side of the protective layer 4 after drying, and coating a waterproof coating 5 on the outer side of the concrete layer 6;
s3: chiseling a cavity 8 on the building wall, and then installing components such as a lower clamp 9, an entire plate 15, an upper clamp 16, a guide block 17, a guide rail 18, a fixed cylinder 19, a screw rod 20 and the like in the cavity 8;
s4: then the water guide pipe 13 is inserted into the first groove 10 and the second groove 12 which are arranged on the building wall, then the knob 23 is rotated to rotate the worm 22, so as to drive the worm wheel 21 to rotate, the fixing cylinder 19 moves downwards through mechanical transmission, and then the whole plate 15 and the upper clamp 16 are driven to move downwards, and when the upper clamp 16 clamps the water guide pipe 13, the knob 23 stops rotating;
s5: the hinge block 24 and the movable plate 25 are installed at the inner side of the building wall, and then the movable plate 25 is moved such that the elastic stopper 26 blocks one end of the water guide pipe 13, and then the catching block 28 is inserted into the catching groove 27, thereby fixing the position of the movable plate 25.
In the installation of the embodiment, the water guide pipe 13 is inserted into the second groove 12, then the fixing rod 33 is pulled, one end of the fixing rod 33 is moved out of the fixing groove 32, so that the limitation on the knob 23 is removed, the knob 23 is rotated, the worm 22 is meshed with the worm wheel 21, the two worm wheels 21 can be driven to synchronously rotate, the worm wheel 21 is fixedly sleeved on the screw rod 20, the two screw rods 20 can be driven to synchronously rotate, the guide block 17 and the guide rail 18 enable the whole plate 15 to only vertically move, and the whole plate 15 and the upper clamp 16 can only vertically move due to the fixed connection relationship among the whole plate 15, the upper clamp 16 and the fixed cylinder 19, because the fixed cylinder 19 is sleeved on the screw rod 20 through threads, the screw rod 20 rotates, the fixed cylinder 19 can be driven to vertically move, the whole plate 15 and the upper clamp 16 vertically move downwards, when the upper clamp 16 clamps tightly clamp the water guide pipe 13, stopping rotating the knob 23, and then pushing the fixing rod 33 so that one end of the fixing rod 33 is inserted into the fixing groove 32, thereby restricting the rotation of the knob 23 and completing the fixing of the water guide pipe 13;
when water needs to be drained, due to the arrangement of the telescopic rod 30, the flat plate 29 can only vertically move, the flat plate 29 is pressed downwards, the clamping block 28 fixedly connected to the top of the flat plate 20 can be driven to move downwards, when the clamping block 28 moves out of the clamping groove 27, the movable plate 25 is unlocked, the movable plate 25 is rotated, the elastic stop block 26 fixedly connected to the left side of the movable plate 25 can be driven to move, the water guide pipe 13 is not blocked, and water in the water guide pipe 13 can be guided out.
In conclusion, the basement waterproof structure and the construction method provided by the invention have the advantages that the structure is simple, the design is reasonable, the operation is convenient and fast, the waterproof performance is improved, and underground water outside the waterproof wall and underground water permeating into the waterproof wall can be discharged through the water guide pipe by arranging the water guide pipe, so that dredging replaces repairing, and the waterproof effect is further improved.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The utility model provides a waterproof structure of basement which characterized in that: comprises a waterproof wall (1), the waterproof wall (1) is sequentially provided with a concrete cushion layer (2), a waterproof coil material layer (3), a protective layer (4), a concrete layer (6) and a basement building surface layer (7) from outside to inside, the outer wall of the concrete layer (6) is brushed with waterproof paint (5), the whole building structure is provided with a cavity (8), the inner wall of the bottom of the cavity (8) is fixedly connected with a plurality of lower fixtures (9), the outer side of the waterproof wall (1) and the inner side of the concrete layer (6) are respectively provided with a first groove (10) and a baffle groove (11), the inner wall of the left side of the baffle groove (11) is provided with a second groove (12), the second groove (12) is communicated with the cavity (8), the first groove (10) and the second groove (12) are movably provided with the same water guide pipe (13), the water guide pipe (13) is contacted with the lower fixtures (9), and the inner walls of the first groove (10) and the second groove (12) are fixedly connected with sealing rings (14), and the water guide pipe (13) is matched with the sealing ring (14), the whole plate (15) is movably arranged in the cavity (8), the bottom of the whole plate (15) is fixedly connected with a plurality of upper clamps (16), the plurality of upper clamps (16) are respectively matched with the plurality of lower clamps (9), both sides of the whole plate (15) are fixedly connected with guide blocks (17), both side inner walls of the cavity (8) are fixedly connected with guide rails (18), the two guide blocks (17) are respectively slidably arranged in the two guide rails (18), the top of the whole plate (15) is fixedly connected with two fixed cylinders (19), the two fixed cylinders (19) are internally and threadedly provided with screw rods (20), the top ends of the two screw rods (20) are respectively and rotatably arranged on the top inner wall of the cavity (8), worm wheels (21) are respectively and fixedly sleeved on the two screw rods (20), and a worm (22) is rotatably arranged on the left side inner wall of the cavity (8), the right end of the worm (22) extends into the basement building surface layer (7) and is fixedly connected with a knob (23).
2. The waterproof structure of basement as claimed in claim 1, wherein: the inner wall fixedly connected with of concrete layer (6) articulates piece (24), rotates on articulated piece (24) and installs fly leaf (25).
3. The waterproof structure of basement as claimed in claim 2, wherein: the left side of the movable plate (25) is fixedly connected with an elastic stop block (26), the elastic stop block (26) is movably mounted in the blocking groove (11), and the elastic stop block (26) is matched with the right end of the water guide pipe (13).
4. The waterproof structure of basement as claimed in claim 3, wherein: the bottom of the movable plate (25) is provided with a clamping groove (27), a clamping block (28) is movably inserted in the clamping groove (27), and the bottom of the clamping block (28) is fixedly connected with a flat plate (29).
5. The waterproof structure of basement as claimed in claim 4, wherein: the bottom fixedly connected with two telescopic links (30) of flat board (29), and the equal fixed connection in bottom of two telescopic links (30) is on the bottom inner wall of concrete layer (6).
6. The waterproof structure of the basement as claimed in claim 1, wherein: fixedly connected with spring (31) between the bottom of dull and stereotyped (29) and the bottom inner wall of concrete layer (6), and spring (31) are located between two telescopic link (30).
7. The waterproof structure of basement as claimed in claim 1, wherein: the inner wall of the concrete layer (6) is provided with a plurality of fixing grooves (32) in an annular array by taking the worm (22) as a center, and a fixing rod (33) is movably inserted in one fixing groove (32).
8. The waterproof structure of basement as claimed in claim 1, wherein: a round hole (34) is formed in one side of the knob (23), and the fixing rod (33) is slidably mounted in the round hole (34).
9. The basement waterproofing construction method according to claim 1, wherein: the method comprises the following steps:
s1: excavating a soil layer, building a waterproof wall (1) on the side surface and the bottom of the basement, laying a concrete cushion layer (2) on the inner side of the waterproof wall (1), drying the concrete cushion layer (2), laying a waterproof coil layer (3), and airing for 24 hours;
s2: paving a protective layer (4) on the inner side of the concrete cushion layer (2), pouring a concrete layer (6) on the inner side of the protective layer (4) after drying, and coating waterproof paint (5) on the outer side of the concrete layer (6);
s3: chiseling a cavity (8) on the building wall, and then installing components such as a lower clamp (9), a whole plate (15), an upper clamp (16), a guide block (17), a guide rail (18), a fixed cylinder (19), a screw rod (20) and the like in the cavity (8);
s4: then inserting a water guide pipe (13) into a first groove (10) and a second groove (12) formed in the building wall, rotating a knob (23) to enable a worm (22) to rotate so as to drive a worm wheel (21) to rotate, enabling a fixing cylinder (19) to move downwards through mechanical transmission, further driving a whole plate (15) and an upper clamp (16) to move downwards, and stopping rotating the knob (23) when the upper clamp (16) clamps the water guide pipe (13);
s5: and (2) installing a hinge block (24) and a movable plate (25) on the inner side of the building wall, then moving the movable plate (25) to enable an elastic stopper (26) to block one end of the aqueduct (13), and then enabling a clamping block (28) to be inserted into a clamping groove (27) to fix the position of the movable plate (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210935864.7A CN115075305B (en) | 2022-08-05 | 2022-08-05 | Basement waterproof structure and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210935864.7A CN115075305B (en) | 2022-08-05 | 2022-08-05 | Basement waterproof structure and construction method |
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| Publication Number | Publication Date |
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| CN115075305A true CN115075305A (en) | 2022-09-20 |
| CN115075305B CN115075305B (en) | 2023-09-08 |
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| CN202210935864.7A Active CN115075305B (en) | 2022-08-05 | 2022-08-05 | Basement waterproof structure and construction method |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1582634A1 (en) * | 2004-03-31 | 2005-10-05 | Schwörer Haus GmbH & Co. | Prefabricated basement wall and method of manufacturing |
| CN208219712U (en) * | 2018-01-10 | 2018-12-11 | 中国煤炭地质总局水文地质局 | A kind of underground waterproof device |
| CN211143022U (en) * | 2019-10-31 | 2020-07-31 | 江苏天淳环保科技有限公司 | Energy-saving flap valve for sewage treatment |
| CN211663254U (en) * | 2019-12-18 | 2020-10-13 | 卢锦福 | Hopper of full-sealed double-door concrete conveying machine |
| CN111851599A (en) * | 2020-07-08 | 2020-10-30 | 江苏银中建设有限公司 | House building basement waterproof structure and construction method |
| CN213496873U (en) * | 2020-11-04 | 2021-06-22 | 浙江纳瓦斯工贸有限公司 | Pipe clamping mechanism for pipe cutter |
| CN113373985A (en) * | 2021-06-10 | 2021-09-10 | 浙江鹏盛建设集团有限公司 | Basement waterproof construction method |
-
2022
- 2022-08-05 CN CN202210935864.7A patent/CN115075305B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1582634A1 (en) * | 2004-03-31 | 2005-10-05 | Schwörer Haus GmbH & Co. | Prefabricated basement wall and method of manufacturing |
| CN208219712U (en) * | 2018-01-10 | 2018-12-11 | 中国煤炭地质总局水文地质局 | A kind of underground waterproof device |
| CN211143022U (en) * | 2019-10-31 | 2020-07-31 | 江苏天淳环保科技有限公司 | Energy-saving flap valve for sewage treatment |
| CN211663254U (en) * | 2019-12-18 | 2020-10-13 | 卢锦福 | Hopper of full-sealed double-door concrete conveying machine |
| CN111851599A (en) * | 2020-07-08 | 2020-10-30 | 江苏银中建设有限公司 | House building basement waterproof structure and construction method |
| CN213496873U (en) * | 2020-11-04 | 2021-06-22 | 浙江纳瓦斯工贸有限公司 | Pipe clamping mechanism for pipe cutter |
| CN113373985A (en) * | 2021-06-10 | 2021-09-10 | 浙江鹏盛建设集团有限公司 | Basement waterproof construction method |
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| CN115075305B (en) | 2023-09-08 |
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