CN115538625B - Waterproof structure construction method for basement exterior wall bottom - Google Patents
Waterproof structure construction method for basement exterior wall bottom Download PDFInfo
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- CN115538625B CN115538625B CN202211486849.5A CN202211486849A CN115538625B CN 115538625 B CN115538625 B CN 115538625B CN 202211486849 A CN202211486849 A CN 202211486849A CN 115538625 B CN115538625 B CN 115538625B
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- waterproof
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
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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
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
Abstract
The invention relates to the technical field of basement waterproof construction, in particular to a waterproof structure construction method for the bottom of a basement outer wall, which comprises the following steps: pouring a cushion layer, paving and pasting a waterproof coiled material on the cushion layer, extending the waterproof coiled material to the edge of the cushion layer, and then returning and folding; pouring a waterproof protection platform on the waterproof coiled material corresponding to the position of the guide wall pre-construction, and building a guide wall on the waterproof protection platform; the waterproof coiled material is back-up adhered to the outer side of the guide wall to the top of the guide wall, and a temporary protection wall is built on the waterproof coiled material at the top; binding raft plate reinforcing steel bars and basement outer wall reinforcing steel bars, and pouring raft plates and basement outer walls; removing the temporary protection wall, and then paving the coiled material waterproof layer along the outer wall to the top of the basement outer wall; filling construction; according to the method, the waterproof coiled material is paved and adhered to the upper side of the cushion layer, the lower sides of the raft plate and the guide wall, and the waterproof coiled material cannot be pulled to crack when uneven settlement occurs in the later period; waterproofing membrane parcel is in leading the wall outside, avoids being destroyed at the ligature reinforcing bar in-process, has greatly reduced the seepage risk.
Description
Technical Field
The invention relates to the technical field of basement waterproof construction, in particular to a waterproof structure construction method for the bottom of a basement outer wall.
Background
When the number of layers of the basement is large, the excavation depth of the foundation pit is deep, the surrounding environment is narrow, the edge formwork of the basement raft foundation is as shown in figure 1 under the general condition, a cushion layer is poured in the foundation pit, brick bed moulds are built around the cushion layer to serve as guide walls, the side faces of the guide walls are plastered, a waterproof coiled material is paved along the inner side faces of the cushion layer and the guide walls, joints are thrown outwards along the tops of the guide walls, a temporary protection wall is constructed at the top of the guide walls, raft plate reinforcing steel bars are bound, vertical reinforcing steel bars of the basement outer wall are inserted into the raft plates, then outer wall reinforcing steel bars are bound, raft plate concrete is poured, then laminated multilayer boards, scaffold pipes and wood squares are used for supporting the basement outer wall formwork, inclined struts are arranged on the outer side for reinforcement, the basement outer wall is poured, after the age and strength of the outer wall concrete meet the requirements, the temporary protection wall is dismantled, the waterproof coiled material is continuously connected from the joints, the waterproof coiled material is thermally paved along the basement outer wall, a waterproof coiled material outside the basement outer wall, a waterproof protective layer is constructed outside the waterproof coiled material, and then soil is backfilled inside of the foundation pit.
The above method has some limitations: (1) After the construction of the raft and the main structure is finished, the raft and the main structure are subjected to uneven settlement with the guide wall, and the coiled material is easy to crack to cause leakage; (2) The waterproof layer is adhered to the inner side of the guide wall, and the waterproof layer at the position is easy to damage in the process of binding the steel bars, so that leakage is caused; (3) The waterproof layer on the upper part of the guide wall is provided with a joint, the joint is easy to damage, and the joint part is easy to form a leakage path to cause leakage.
Disclosure of Invention
The present invention is directed to solving the above problems, and thus, to provide a method for constructing a waterproof structure for the bottom of an outer wall of a basement, which can prevent a waterproof roll from being damaged and thus leaking.
The invention solves the problems and adopts the technical scheme that:
a waterproof structure construction method for the bottom of an outer wall of a basement comprises the following steps:
s1: clearing the groove of the foundation pit to form a working surface, pouring a cushion layer on the working surface, paving a waterproof coiled material on the cushion layer after the age and the strength of the cushion layer meet the design requirements, extending the waterproof coiled material to the edge of the cushion layer, then folding the waterproof coiled material back, and pressing a pressing block on the inner side after folding;
s2: pouring a waterproof protection platform on the waterproof coiled material, building a brick bed film on the waterproof protection platform to serve as a guide wall, and plastering and press polishing the waterproof protection platform and the outer side of the guide wall;
s3: the waterproof coiled material is adhered to the waterproof protection platform and the ash surface on the outer side of the guide wall, the top of the guide wall is plastered, the waterproof coiled material is turned upwards along the outer side of the guide wall and is paved on the top of the guide wall, and a wood brick wall is built on the waterproof coiled material on the top of the guide wall to serve as a temporary protection wall;
s4: marking and binding raft plate reinforcing steel bars at positions of pre-cast raft plates on the waterproof protection table, inserting basement outer wall reinforcing steel bar insertion ribs into the bottoms of the raft plates to be firmly bound with the raft plate reinforcing steel bars, and then pouring raft plate concrete;
s5: binding reinforcing steel bars of the basement outer wall, supporting a side formwork of the basement outer wall, and pouring concrete of the basement outer wall;
s6: after the age and the strength of the basement outer wall meet the requirements, the temporary protection wall is removed, and then the coiled material waterproof layer is laid along the outer side of the basement outer wall along the top surface of the guide wall and is attached to the top of the basement outer wall;
s7: and constructing a waterproof protective layer on the outer side of the waterproof roll, performing filling construction between the foundation pit retaining wall and the waterproof protective layer on the outer side of the guide wall, and performing layered backfilling and tamping.
Preferably, in step S1, the step of applying the waterproof roll includes,
s101: a first layer of waterproof coiled material is adhered by a hot paving method, is paved along the cushion layer to the edge of the cushion layer, is folded back, and is pressed into a first pressing block at the inner side for waiting;
s102: adopting a hot-laying method to adhere a second layer of waterproof coiled material, paving and adhering the second layer of waterproof coiled material along the first layer of waterproof coiled material to a first pressing block at the edge of the first layer of waterproof coiled material, then returning to be folded, pressing a second pressing block on the inner side, and pressing a second foam rod in the turning process;
s103: then pressing the waiting first layer of waterproof coiled material into a first foam rod in the folding process, wherein the first foam rod is positioned above a second foam rod.
Preferably, the first pressing block and the second pressing block are made of polystyrene boards or hard sponges.
Preferably, the first pressing block is not attached to the side edge of the first layer of waterproof coiled material, and the second pressing block is not attached to the side edge of the second layer of waterproof coiled material.
Compared with the prior art, the invention adopting the technical scheme has the outstanding characteristics that:
according to the method, the waterproof coiled material is paved and attached to the upper side of the cushion layer, the raft plate, the waterproof protection table and the lower side of the guide wall wrap the waterproof protection table and the guide wall to form a whole with the main structure, and when the main structure is unevenly settled, the guide wall and the waterproof protection table are driven to settle together; meanwhile, the integrity of the main structures of the guide wall, the raft plate, the outer wall and the like is stronger, and the engineering quality is further ensured; the waterproof roll has a certain amount of expansion and contraction through the first foam rod and the second foam rod, and the waterproof roll can be prevented from deforming and damaging when stretched and is not easy to damage by extruding the first foam rod and the second foam rod when stretched, so that water seepage is avoided in the later period; the waterproof coiled material is wrapped on the outer side of the guide wall, so that the waterproof coiled material is prevented from being damaged in the process of binding the reinforcing steel bars; waterproofing membrane is upwards laid along leading wall and outer wall outside all the time and is pasted, does not have external joint, is difficult for being destroyed, has greatly reduced the seepage risk.
Drawings
FIG. 1 is a schematic structural view of a waterproof structure at the bottom of an outer wall of a basement in the prior art;
FIG. 2 is a schematic structural view of a waterproof roll according to an embodiment of the present invention when it is first applied;
FIG. 3 is a schematic structural view of the basement exterior wall during pouring according to the embodiment of the invention;
FIG. 4 is a schematic structural diagram of an embodiment of the invention during foundation pit backfilling;
FIG. 5 is a schematic diagram of a side view of a water stop strip according to an embodiment of the present invention;
fig. 6 is a schematic diagram of a top view structure of a water stop strip according to an embodiment of the present invention.
In the figure: 1. a cushion layer; 2. a guide wall; 3. waterproof coiled materials; 301. a first layer of waterproof roll material; 302. a second layer of waterproof roll material; 4. a temporary protection wall; 5. raft plate steel bars; 6. reinforcing steel bars of the basement outer wall; 7. a basement exterior wall; 8. backfilling; 9. protecting the wall of the foundation pit; 10. a first pressing block; 11. a second pressing block; 12. a first foam rod; 13. a second foam rod; 14. a waterproof protection table; 15. a waterproof protective layer; 16. a sideform; 17. a water stop bar.
Detailed Description
The invention will be further illustrated by the following examples, which are intended only for a better understanding of the present invention and therefore do not limit the scope of the invention.
As shown in fig. 1 to 6, a waterproof structure construction method for the bottom of the outer wall of the basement includes the following steps:
s1: clearing a groove according to the size of the outer edge of the raft plate and the position of a foundation pit retaining wall 9 to form a working surface, pouring a cushion layer 1 on the working surface after the drill rod detection and the groove inspection are qualified, paving and sticking a waterproof coiled material 3 on the cushion layer 1 after the age and the strength of the cushion layer 1 meet the design requirements, and paving and sticking the waterproof coiled material 3;
s101: a first layer of waterproof coiled material 301 is adhered by a hot paving method, the first layer of waterproof coiled material 301 is paved along the cushion layer 1 to the edge of the cushion layer 1, then the waterproof coiled material is folded back, and a first pressing block 10 is pressed in the inner side for waiting;
s102: a second layer of waterproof coiled material 302 is adhered by adopting a hot laying method, the second layer of waterproof coiled material 302 is laid and adhered along the first layer of waterproof coiled material 301, is laid and adhered to the first pressing block 10 at the edge of the first layer of waterproof coiled material 301, then is folded back, a second pressing block 11 is pressed in the inner side, and a second foam rod 13 is pressed in the turning process;
s103: the waiting first layer of waterproofing membrane 301 is then pressed into the first foam rod 12 during the folding process, the first foam rod 12 being positioned above the second foam rod 13.
Wherein, first foam stick 12, 13 first layer waterproofing membrane 301 of second foam stick, second floor waterproofing membrane 302 have certain flexible volume, receive external force when leading to warping when first layer waterproofing membrane 301, make it produce small deformation through compressing first foam stick 12, and when second floor waterproofing membrane 302 warp, compression second foam stick 13 prevents that first layer waterproofing membrane 301, second floor waterproofing membrane 302 from receiving external force and warping the damage that warp when stretching. Meanwhile, the first pressing block 10 and the second pressing block 11 are made of polystyrene boards or hard sponge, and when the hard sponge is adopted, the expansion amount is further increased.
As shown in fig. 5 and 6, in order to prevent the folded part from being broken or torn by other external force, a water stop strip 17 is attached to the side edge of the first pressing block 10, which is not attached to the first layer of waterproof roll material 301, and a water stop strip 17 is attached to the side edge of the second pressing block 11, which is not attached to the second layer of waterproof roll material 302; the water stop 17 swells when meeting water, and can prevent downward water seepage.
S2: pouring a waterproof protection table 14 on the second layer of waterproof coiled material 302 corresponding to the guide wall 2 and the raft plate at the pre-construction position, adopting a sand lime brick masonry brick tire film on the waterproof protection table 14 as the guide wall 2, and plastering and calendaring the outer sides of the waterproof protection table 14 and the guide wall 2; specifically, when the guide wall 2 is built, the top surface of the guide wall 2 is 200mm higher than the top surface of the raft.
S3: the second layer of waterproof roll material 302 is upwards returned to be pasted on the waterproof protection platform 14 and the plaster surface outside the guide wall 2, the top of the guide wall 2 is plastered, the second layer of waterproof roll material 302 is upwards turned and paved on the top of the guide wall 2 along the outer side of the guide wall 2, the first layer of waterproof roll material 301 is paved and paved along the second layer of waterproof roll material 302, a wooden brick wall is built on the first layer of waterproof roll material 301 at the top of the guide wall 2 to serve as a temporary protection wall 4, and the first layer of waterproof roll material 301 and the second layer of waterproof roll material 302 are pressed by the temporary protection wall 4.
S4: and (3) marking and binding raft plate reinforcing steel bars 5 at the position of the pre-cast raft plate on the waterproof protection platform 14, inserting bars of basement outer wall reinforcing steel bars 6 into the bottom of the raft plate to be firmly bound with the raft plate reinforcing steel bars 5, and then pouring raft plate concrete.
S5: and binding the reinforcing steel bars 6 of the basement outer wall, erecting a side formwork 16 of the basement outer wall after the basement outer wall is qualified, and pouring concrete of the basement outer wall 7.
S6: after the age and the strength of the basement outer wall 7 meet the requirements, the temporary protection wall 4 is dismantled, then the first layer of waterproof coiled material 301 and the second layer of waterproof coiled material 302 are sequentially paved and attached to the top of the basement outer wall 7 along the top surface of the guide wall 2 along the outer side of the basement outer wall 7, and the guide wall 2 is wrapped in the first layer of waterproof coiled material 301 and the second layer of waterproof coiled material 302.
S7: constructing a waterproof protective layer 15 on the outer side of the first layer of waterproof roll material 301, wherein the waterproof protective layer 15 adopts a polystyrene foam board as a main material and is bonded by a vinyl acetate adhesive; and constructing a waterproof protective layer 15 on the outer side of the waterproof coiled material 3 on the outer side of the foundation pit retaining wall 9 and the guide wall 2, performing filling construction between the filling constructions between the foundation pit retaining wall 9 and the guide wall 2, and completing the layered backfilling and tamping of the backfill 8.
For guaranteeing later stage waterproofing membrane not to take place the seepage, break, first layer waterproofing membrane, second floor waterproofing membrane do not have in easy atress department and connect the stubble, for the monoblock coiled material, for example: the turning-over part, the joint of the raft and the guide wall, the top of the outer wall and the like. The waterproof coiled material is paved and pasted upwards along the outer sides of the guide wall and the outer wall all the time, no external joint exists, the influence of peripheral processes is not easy, the waterproof coiled material is not easy to damage, and the leakage risk is greatly reduced; the method has the advantages of simple construction steps, short construction period, high quality and good anti-seepage effect.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the present invention, which is defined in the appended claims.
Claims (3)
1. A waterproof structure construction method for the bottom of an outer wall of a basement is characterized by comprising the following steps:
s1: clearing the groove of the foundation pit to form a working surface, pouring a cushion layer on the working surface, paving a waterproof coiled material on the cushion layer after the age and the strength of the cushion layer meet the design requirements, extending the waterproof coiled material to the edge of the cushion layer, then folding the waterproof coiled material back, and pressing a pressing block on the inner side after folding; the step of laying the waterproof roll comprises the steps of,
s101: a first layer of waterproof coiled material is adhered by a hot paving method, is paved along the cushion layer to the edge of the cushion layer, is folded back, and is pressed into a first pressing block at the inner side for waiting;
s102: adopting a hot-laying method to adhere a second layer of waterproof coiled material, paving and adhering the second layer of waterproof coiled material along the first layer of waterproof coiled material to a first pressing block at the edge of the first layer of waterproof coiled material, then returning to be folded, pressing a second pressing block on the inner side, and pressing a second foam rod in the turning process;
s103: then pressing the waiting first layer of waterproof coiled material into a first foam rod in the turnover process, wherein the first foam rod is positioned above a second foam rod;
s2: pouring a waterproof protection platform on the waterproof coiled material, building a brick bed film on the waterproof protection platform to serve as a guide wall, and plastering and press polishing the waterproof protection platform and the outer side of the guide wall;
s3: the waterproof coiled material is adhered to the waterproof protection platform and the ash surface on the outer side of the guide wall, the top of the guide wall is plastered, the waterproof coiled material is turned upwards along the outer side of the guide wall and is paved on the top of the guide wall, and a wood brick wall is built on the waterproof coiled material on the top of the guide wall to serve as a temporary protection wall;
s4: marking and binding raft plate reinforcing steel bars at the position of a pre-cast raft plate on the waterproof protection platform, inserting basement outer wall reinforcing steel bars into the bottom of the raft plate to be firmly bound with the raft plate reinforcing steel bars, and then pouring raft plate concrete;
s5: binding reinforcing steel bars of the basement outer wall, erecting a side formwork of the basement outer wall, and pouring concrete of the basement outer wall;
s6: after the age and the strength of the basement outer wall meet the requirements, the temporary protection wall is dismantled, and then the coiled material waterproof layer is paved along the top surface of the guide wall along the outer side of the basement outer wall and is adhered to the top of the basement outer wall;
s7: and constructing a waterproof protective layer on the outer side of the waterproof roll, performing filling construction between the foundation pit retaining wall and the waterproof protective layer on the outer side of the guide wall, and performing layered backfilling and tamping.
2. The waterproof construction method for the bottom of the outer wall of the basement as claimed in claim 1, wherein: the first pressing block and the second pressing block are made of polystyrene boards or hard sponge.
3. The waterproof structure construction method for the basement exterior wall bottom as claimed in claim 1, wherein: the side of first layer waterproofing membrane is not laminated to first briquetting has the sealing rod, and the side laminating of second layer waterproofing membrane is not laminated to second briquetting has the sealing rod.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202211486849.5A CN115538625B (en) | 2022-11-25 | 2022-11-25 | Waterproof structure construction method for basement exterior wall bottom |
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| CN202211486849.5A CN115538625B (en) | 2022-11-25 | 2022-11-25 | Waterproof structure construction method for basement exterior wall bottom |
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| CN115538625B true CN115538625B (en) | 2023-02-28 |
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| CN116446465B (en) * | 2023-06-19 | 2023-10-27 | 北京市科学技术研究院城市安全与环境科学研究所 | Building vibration reduction structure suitable for foundation pit-free lining wall and construction method thereof |
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|---|---|---|---|---|
| WO2009126979A1 (en) * | 2008-04-14 | 2009-10-22 | Lenzing Plastics Gmbh | Vapour permeable, water-tight and reflecting foil |
| CN108643340A (en) * | 2018-04-21 | 2018-10-12 | 天津中擎建筑工程有限公司 | A kind of waterproofing for basement technique |
| CN216446052U (en) * | 2021-11-03 | 2022-05-06 | 江苏筑森建筑设计有限公司 | Waterproof structure of basement outer wall and bottom plate |
| CN217734098U (en) * | 2022-04-02 | 2022-11-04 | 中建一局集团第三建筑有限公司 | Face sea basement foundation ditch outer wall waterproof construction |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009126979A1 (en) * | 2008-04-14 | 2009-10-22 | Lenzing Plastics Gmbh | Vapour permeable, water-tight and reflecting foil |
| CN108643340A (en) * | 2018-04-21 | 2018-10-12 | 天津中擎建筑工程有限公司 | A kind of waterproofing for basement technique |
| CN216446052U (en) * | 2021-11-03 | 2022-05-06 | 江苏筑森建筑设计有限公司 | Waterproof structure of basement outer wall and bottom plate |
| CN217734098U (en) * | 2022-04-02 | 2022-11-04 | 中建一局集团第三建筑有限公司 | Face sea basement foundation ditch outer wall waterproof construction |
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