CN108505545B - Waterproof method for building foundation raft penetrating through underground pipe group - Google Patents
Waterproof method for building foundation raft penetrating through underground pipe group Download PDFInfo
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- CN108505545B CN108505545B CN201710114716.8A CN201710114716A CN108505545B CN 108505545 B CN108505545 B CN 108505545B CN 201710114716 A CN201710114716 A CN 201710114716A CN 108505545 B CN108505545 B CN 108505545B
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- waterproof
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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
Abstract
The invention relates to a waterproof method for penetrating a foundation raft of a building by an underground pipe group, which is characterized in that waterproof steel plates are used for connecting waterproof sleeves of the underground pipe group, and waterproof layers of a water-facing surface and a back water surface are formed above and below the waterproof steel plates, so that the foundation raft of an underground chamber can be completely waterproof without weakening the overall waterproof performance of the foundation raft structure and the foundation raft; the flexible waterproof method in the waterproof sleeve is improved, and the waterproof performance is enhanced; the flexible waterproof top end is provided with an anti-corrosion and anti-rust measure, so that the maintenance of the waterproof device is facilitated.
Description
Technical Field
The invention belongs to the technical field of building engineering, and particularly relates to a waterproof method for a buried pipe to penetrate through a building foundation raft.
Background
Along with the popularization of renewable energy-saving projects of buried pipe ground source heat pumps, more and more projects are provided under the foundation of the buried pipe building. The basement has large area, so that the basement cannot enter from the outside of a building, and a pipeline chamber is not suitable to be arranged on the basement floor in a local sinking way; the buried pipe penetrates through the raft plate to enter the basement and an indoor heat pump machine room, and the most economical scheme for saving materials and energy is provided;
generally, the number of buried pipes is large, and a plurality of buried pipes form a group and enter the basement water collecting and distributing device according to the group. But the pipeline is more to wear basement outer wall way, and waterproof requirement does not have raft board yet and requires highly. With the development of large-scale buildings and energy-saving technology and the requirements of various methods of a ground source heat pump air conditioner, the penetration of a raft by a buried pipe group is an economic and applicable choice, but the raft has high waterproof requirements and is lack of a reliable method.
Disclosure of Invention
The invention provides a waterproof method for penetrating a building foundation raft by an underground pipe group to overcome the defects of the prior art, the structure uses a waterproof steel plate to connect waterproof sleeves of the underground pipe group, waterproof layers of a water-facing surface and a back water surface are formed above and below the waterproof steel plate, the waterproof of the basement foundation raft can be complete, and the integral waterproof performance of the foundation raft structure and the foundation raft is not weakened; the flexible waterproof method in the waterproof sleeve is improved, and the waterproof performance is enhanced; the flexible waterproof top end is provided with an anti-corrosion and anti-rust measure, so that the maintenance of the waterproof device is facilitated.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a waterproof method for a buried pipe group penetrating building foundation raft, which comprises the following steps:
(1) laying buried pipes under a building foundation raft to be poured, fixing the buried pipes in a manner of being vertical to the ground according to the positions and the intervals of outlet pipes of the buried pipes, then pouring a building foundation raft cushion layer, and arranging high-density polystyrene boards at corresponding positions under waterproof sleeves;
(2) waterproof layers are laid on the raft cushion layer of the building foundation and the high-density polyphenyl plate, the waterproof layers close to the buried pipes are arranged in an upturned mode, and water-swelling water stop strips are arranged on the upper sides of the upturned waterproof layers;
(3) welding a waterproof sleeve according to the size of the buried pipe, wherein the waterproof sleeve is sleeved outside the buried pipe, and the outer side wall of the middle part of the waterproof sleeve is fully welded with a water retaining wing ring which is connected with a raft steel bar; the waterproof sleeve is characterized in that a waterproof steel plate is fully welded at the bottom end of the waterproof sleeve, the waterproof steel plate is tightly combined with a waterproof layer, a waterproof layer facing the water is formed at the tight combination position of the waterproof steel plate and the waterproof layer, and a through hole is formed in one side wall of the waterproof sleeve;
(4) laying a back surface waterproof layer on the upper part of the waterproof steel plate in the step (3), wherein the back surface waterproof layer is in waterproof lap joint with the cushion layer, a water-swelling water stop strip is wound at the welding part of the waterproof sleeve and the waterproof steel plate, the back surface waterproof layer of the water-swelling water stop strip is turned upwards, and after the waterproof layer is manufactured, a waterproof protective layer and a building foundation raft are poured;
(5) after the buried pipe group is installed and positioned, injecting foamed polyurethane into a gap between the waterproof casing pipe and the buried pipe through a through hole, and plugging the through hole by a bolt; a check ring, a first rubber ring, a lead oil hemp layer, a second rubber ring and a short pipe flange for compaction are sequentially arranged at the upper part of a gap between the waterproof sleeve and the buried pipe from bottom to top, the short pipe flange for compaction and the waterproof sleeve are fixed through a connecting bolt, and then a ground cushion layer is poured on the building basic raft;
(6) the waterproof floor layer is manufactured on the upper surface of the floor cushion layer and combined with the upper portion of the waterproof casing, the connecting bolts of the short pipe flanges are sealed by flame-retardant foamed polyurethane, and then the waterproof floor layer is manufactured to be higher than the ground, so that later maintenance is facilitated.
2. According to the waterproof method for the buried pipe group to penetrate through the building foundation raft, the bottom of a buried pipe sleeve in the buried pipe group is made of a steel plate, the whole surface of the upstream surface and the back surface of the buried pipe group is waterproof, and PE plastic buried pipes are adopted.
According to the waterproof method of the buried pipe group penetrating building foundation raft, the compression short pipes and the flange pieces are all in national standards, the gap between the check ring and the buried pipe is controlled to be 3-5 mm, and 4 45-degree penetrating flow deflectors are arranged at the bottom of the check ring.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the structure, the waterproof steel plate is fully welded at the bottom end of the waterproof casing, so that hidden dangers that the waterproof layer at the bottom of the building foundation raft is lost to influence the overall waterproof performance of a basement and the like can be avoided; the structure solves the problem that the lower half part in the waterproof sleeve cannot be filled with waterproof fillers from the lower part of a building foundation raft, and after glue is injected into the gap between the waterproof sleeve and the buried pipe, the bolts are sealed; a check ring, a first rubber ring, a lead-oil hemp thread layer, a second rubber ring and a short pipe flange for compaction are sequentially arranged at the upper part of a gap between the waterproof sleeve and the buried pipe from bottom to top, oil hemp is additionally arranged between the flexible waterproof rubber rings, small gaps between the rubber pads are filled, and the flexible waterproof rubber rings are further sealed; the connecting bolt of the short pipe flange is sealed by flame-retardant foamed polyurethane, is anticorrosive and rustproof, and is favorable for maintaining a waterproof device.
2. According to the structure, the gap between the check ring and the buried pipe is controlled to be 3-5 mm, 4 pipe penetrating flow deflectors with the angle of 45 degrees are arranged at the bottom of the check ring, and the structure is convenient for leading the pipe into the buried pipe.
3. By adopting the structure, the invention has better economic benefits in the aspects of later maintenance, energy consumption, safe production and the like.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a partial structural schematic diagram of the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
referring to fig. 1-2, the invention provides a waterproof method for a buried pipe to penetrate through a building foundation raft, which comprises the following steps:
(1) laying buried pipes 2 under a building foundation raft 1 to be poured, fixing the buried pipes in a manner of being vertical to the ground according to the positions and the intervals of outlet pipes of the buried pipes 2, then pouring a building foundation raft cushion layer 3, and arranging high-density polystyrene boards 5 at corresponding positions under waterproof sleeves 4;
(2) waterproof layers 6 are laid on the raft bed layer 3 and the high-density polyphenyl plates 5 of the building foundation, the waterproof layers close to the buried pipes 3 are arranged in an upturned mode, and water-swelling water stop strips 7 are arranged on the upper sides of the upturned waterproof layers;
(3) welding a waterproof sleeve 4 according to the size of the buried pipe, sleeving the waterproof sleeve 4 on the outer side of the buried pipe 2, fully welding a water retaining wing ring 8 on the outer side wall of the middle part of the waterproof sleeve 4, and connecting the water retaining wing ring 8 with the reinforcing steel bars of the raft 1; a waterproof steel plate 9 is fully welded at the bottom end of the waterproof sleeve 4, the waterproof steel plate 9 is tightly combined with the waterproof layer 6, the tightly combined part of the waterproof steel plate 9 and the waterproof layer 6 forms a water-facing waterproof layer, and a through hole 10 is formed in the side wall of one side of the waterproof sleeve 4;
(4) in the step (3), a back surface waterproof layer 11 is laid on the upper portion of the waterproof steel plate 9, the back surface waterproof layer 11 is in waterproof lap joint with the cushion layer, a water swelling water stop strip is wound at the welding position of the waterproof sleeve 4 and the waterproof steel plate 9, the back surface waterproof layer of the water swelling water stop strip is turned upwards, the waterproof layer is completely manufactured, and a waterproof protective layer 12 and the building basic raft plate 1 are poured;
(5) after the buried pipe 2 group is installed and positioned, injecting foamed polyurethane 22 into a gap between the waterproof casing pipe 4 and the buried pipe 2 through a through hole 10, wherein a bolt plug 13 is arranged on the through hole; a retainer ring 14, a first rubber ring 15, a lead oil hemp layer 16, a second rubber ring 17 and a short pipe flange 18 for compaction are sequentially arranged at the upper part of a gap between the waterproof sleeve 4 and the buried pipe 2 from bottom to top, the short pipe flange 18 for compaction and the waterproof sleeve 4 are fixed through a connecting bolt 19, and then a ground cushion 20 is poured on the building basic raft 1;
(6) the upper surface of the ground cushion layer 20 is provided with a ground waterproof layer 21, the ground waterproof layer 21 is combined with the upper part of the waterproof casing 4, the connecting bolt of the short pipe flange 18 is sprayed and sealed by adopting flame-retardant foamed polyurethane 22, and then a cement protective layer higher than the ground is manufactured, so that later maintenance is facilitated.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the overall concept of the present invention, and these should also be considered as the protection scope of the present invention.
Claims (2)
1. A waterproof method for a buried pipe group penetrating building foundation raft is characterized by comprising the following steps:
(1) laying buried pipes under a building foundation raft to be poured, fixing the buried pipes in a manner of being vertical to the ground according to the positions and the intervals of outlet pipes of the buried pipes, then pouring a building foundation raft cushion layer, and arranging high-density polystyrene boards at corresponding positions under waterproof sleeves;
(2) waterproof layers are laid on the raft cushion layer of the building foundation and the high-density polyphenyl plate, the waterproof layers close to the buried pipes are arranged in an upturned mode, and water-swelling water stop strips are arranged on the upper sides of the upturned waterproof layers;
(3) welding a waterproof sleeve according to the size of the buried pipe, wherein the waterproof sleeve is sleeved outside the buried pipe, and the outer side wall of the middle part of the waterproof sleeve is fully welded with a water retaining wing ring which is connected with a raft steel bar; the waterproof sleeve is characterized in that a waterproof steel plate is fully welded at the bottom end of the waterproof sleeve, the waterproof steel plate is tightly combined with a waterproof layer, a waterproof layer facing the water is formed at the tight combination position of the waterproof steel plate and the waterproof layer, and a through hole is formed in one side wall of the waterproof sleeve;
(4) laying a back surface waterproof layer on the upper part of the waterproof steel plate in the step (3), wherein the back surface waterproof layer is in waterproof lap joint with the cushion layer, a water-swelling water stop strip is wound at the welding part of the waterproof sleeve and the waterproof steel plate, the back surface waterproof layer of the water-swelling water stop strip is turned upwards, and after the waterproof layer is manufactured, a waterproof protective layer and a building foundation raft are poured;
(5) after the buried pipe group is installed and positioned, foaming polyurethane is injected into a gap between the waterproof casing pipe and the buried pipe through a through hole, and a bolt plug is arranged on the through hole to form first waterproof in the casing pipe; a check ring, a first rubber ring, a lead oil hemp thread layer, a second rubber ring and a short pipe flange for compaction are sequentially arranged on the upper part of a gap between the waterproof sleeve and the buried pipe from bottom to top, the lead oil hemp thread layer is added between the two traditional rubber ring waterproofings, and the second waterproofness in the sleeve is strengthened; the short pipe flange for compaction and the waterproof sleeve are fixed through a connecting bolt, and then a ground cushion layer is poured on the building basic raft;
(6) a ground waterproof layer is manufactured on the upper surface of the ground cushion layer and is combined with the upper part of the waterproof sleeve, the connecting bolt of the short pipe flange is sealed by adopting flame-retardant foamed polyurethane, and then a cement protective layer higher than the ground is manufactured, so that later maintenance is facilitated;
the bottom of an underground pipe sleeve in the underground pipe group is made of a steel plate, and the whole surface of the upstream surface and the back surface is waterproof.
2. The waterproof method of doing so of burying the nest of tubes through building basic raft of claim 1, characterized by: 4 pipe-penetrating flow deflectors of 45 degrees are arranged at the bottom of the inner retainer ring of the waterproof sleeve, the lower side of the retainer ring is filled with foaming polyurethane for water prevention, and a lead oil hemp thread layer is additionally arranged between two waterproof rubber rings on the retainer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710114716.8A CN108505545B (en) | 2017-02-28 | 2017-02-28 | Waterproof method for building foundation raft penetrating through underground pipe group |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710114716.8A CN108505545B (en) | 2017-02-28 | 2017-02-28 | Waterproof method for building foundation raft penetrating through underground pipe group |
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| CN108505545A CN108505545A (en) | 2018-09-07 |
| CN108505545B true CN108505545B (en) | 2020-05-08 |
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| CN201710114716.8A Active CN108505545B (en) | 2017-02-28 | 2017-02-28 | Waterproof method for building foundation raft penetrating through underground pipe group |
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| CN113638433B (en) * | 2021-06-29 | 2023-03-14 | 中铁电气化局集团北京建筑工程有限公司 | Construction method for foundation raft penetrating through ground source side circulating pipe of ground source heat pump system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201121774Y (en) * | 2007-01-09 | 2008-09-24 | 刘伟 | Flexible water-proof casing tube |
| CN201259025Y (en) * | 2008-07-01 | 2009-06-17 | 屈铁成 | Sealing device for buried pipe protection well |
| CN102661449A (en) * | 2012-05-21 | 2012-09-12 | 江苏江中集团有限公司 | Water-proof structure of upstream face of flexible wall penetration pipe |
| CN102954623A (en) * | 2011-08-26 | 2013-03-06 | 上海典峰空调设备工程技术有限公司 | Waterproof sealing sleeve construction process for ground source heat pump buried pipe penetrating large bottom plate of building |
| CN105275020A (en) * | 2014-07-07 | 2016-01-27 | 中石化洛阳工程有限公司 | Underground pipeline anti-leakage facility |
-
2017
- 2017-02-28 CN CN201710114716.8A patent/CN108505545B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201121774Y (en) * | 2007-01-09 | 2008-09-24 | 刘伟 | Flexible water-proof casing tube |
| CN201259025Y (en) * | 2008-07-01 | 2009-06-17 | 屈铁成 | Sealing device for buried pipe protection well |
| CN102954623A (en) * | 2011-08-26 | 2013-03-06 | 上海典峰空调设备工程技术有限公司 | Waterproof sealing sleeve construction process for ground source heat pump buried pipe penetrating large bottom plate of building |
| CN102661449A (en) * | 2012-05-21 | 2012-09-12 | 江苏江中集团有限公司 | Water-proof structure of upstream face of flexible wall penetration pipe |
| CN105275020A (en) * | 2014-07-07 | 2016-01-27 | 中石化洛阳工程有限公司 | Underground pipeline anti-leakage facility |
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