CN112302045A - Construction method of foundation beam side vertical face waterproof structure - Google Patents
Construction method of foundation beam side vertical face waterproof structure Download PDFInfo
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- CN112302045A CN112302045A CN201910680483.7A CN201910680483A CN112302045A CN 112302045 A CN112302045 A CN 112302045A CN 201910680483 A CN201910680483 A CN 201910680483A CN 112302045 A CN112302045 A CN 112302045A
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- foundation beam
- foundation
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
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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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- 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
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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 discloses a construction method of a waterproof structure of a side vertical surface of a foundation beam, which is carried out after the excavation of a foundation beam groove is finished, wherein foundation cushion layers are poured at the bottom and the tops of two sides of the foundation beam groove, and grooves are arranged at two ends of the bottom foundation cushion layer; placing a cement board fetal membrane in the groove; paving waterproof coiled materials on the inner side wall, the top and the bottom plate foundation mat of the cement board base membrane; laying a mesh cloth on the waterproof roll layer on the side wall of the foundation beam on each side, wherein two ends of the mesh cloth are lapped with the waterproof roll layer; and (3) plastering mortar into the grid cloth, wherein the plumpness of the mortar is 100%, and finally, the grid cloth and the mortar are plastered to form the waterproof protective layer of the side vertical face of the foundation beam. The beam section is effectively prevented from being reduced, and the problems of inconvenient pouring construction, beam bottom plate concrete finishing construction and the like are solved. The invention has convenient construction, strong applicability, firmness and stability, is not easy to fall off and crack, simplifies the structure and the working procedure, saves the cost and ensures the quality and the construction safety.
Description
Technical Field
The invention relates to a construction method of a beam waterproof structure, in particular to a construction method of a foundation beam cement board side vertical face waterproof structure.
Background
In recent years, with the rapid development of urban construction, underground structures in house buildings are more and more common, and higher requirements on water resistance are provided. At present, in the domestic common waterproof layer construction technology, the waterproof layer side elevation protective layer to roof beam both sides adopts the cement slab to protect, as shown in fig. 1, traditional work progress is: after the excavation of the foundation beam groove is finished, pouring foundation cushion layers on the bottom and the tops of the two sides of the foundation beam groove; placing cement board bed moulds 3 in the grooves 2 at two ends of the base cushion layer 11 at the bottom respectively; laying a waterproof coiled material 4 along the top foundation mat layer 12 on one side, the cement board bed-jig 3 on one side, the bottom foundation mat layer 12, the cement board bed-jig 3 on the other side to the top foundation mat layer 12 on the other side, and then respectively placing cement boards 61 serving as waterproof protective layers on the side surfaces of the waterproof coiled material 4 positioned on the two sides of the foundation beam groove; pouring the fine aggregate concrete protective layers 51 on the waterproof coiled materials 4 at the tops of the two sides, and fastening the two side vertical face cement boards 61 with the fine aggregate concrete protective layers 51 at the tops of the two sides respectively by using the expansion pipe expansion nails 9; a rectangular wood back ridge 7 and a cross brace 8 are fixed at the top and the middle part between the two lateral vertical plate cement plates 61; finally, a fine aggregate concrete protective layer 52 is poured on the lower ends of the waterproof roll 4 and the cement board 61 at the bottom. However, in the process of pouring the fine aggregate concrete protective layer 52 at the bottom, the construction space is narrow, and the position of the cross brace 8 may be moved due to the mistaken collision of constructors, and in addition, when the fine aggregate concrete protective layer is poured, the cross brace 8 is easy to fall off due to the collision of concrete, so that the side cement plate protective layer falls off, the waterproof coiled material cannot be protected, or the side vertical surface cement plate protective layer moves, the section of the foundation beam is easy to be reduced, the concrete protective layers at two sides of the steel bar in the beam are insufficient in the subsequent construction, the construction quality cannot be guaranteed, and measures and remedies cannot be taken in the later period. Moreover, the movement or falling off of the support can affect the construction safety; in addition, because the cement board is as waterproof layer, the existence of its stull leads to the underseam bottom pea gravel concrete pouring process and receives the light process extremely inconvenient, causes the very big waste of human cost. How to solve the problem of the waterproof protective layer on the side surface of the cement slab beam, the problem to be solved in the construction of the waterproof layer cement slab of the foundation beam is urgent.
Disclosure of Invention
In view of the above situation, the invention provides a construction method of a waterproof structure of a side vertical surface of a foundation beam, which can effectively prevent the section of the beam from becoming small. The problems that the support is extremely inconvenient to construct in the concrete pouring process, the beam bottom plate concrete light-collecting construction is inconvenient and the like are solved. The invention has convenient construction, strong applicability, firmness and stability, difficult falling and cracking, time and labor saving due to simplified structure and working procedure, and can ensure quality and construction safety while saving cost.
In order to solve the technical problems, the invention provides a construction method of a waterproof structure of a side vertical surface of a foundation beam, which replaces a cement plate used as a waterproof protective layer by adopting alkali-resistant mesh cloth and anti-crack mortar for plastering. The construction method is implemented after excavation of a foundation beam groove is completed, and comprises the following steps:
pouring a foundation cushion layer at the bottom and the tops of two sides of a foundation beam groove, wherein grooves are formed in two ends of the foundation cushion layer at the bottom of the foundation beam groove;
step two, placing cement board bed moulds in grooves at two ends of a foundation cushion layer at the bottom of the foundation beam groove respectively; paving waterproof rolls on the inner side wall of the cement board bed course, the foundation cushion layer on the top of the foundation beam groove and the foundation cushion layer on the bottom plate of the foundation beam groove so as to form a foundation beam side wall waterproof roll layer, a foundation beam top cushion layer waterproof roll layer and a bottom plate cushion layer waterproof roll layer;
after the waterproof coiled material is constructed, laying grid cloth on the waterproof coiled material layer on the side wall of the foundation beam on each side, wherein one end of the grid cloth is mutually overlapped with the waterproof coiled material layer of the bottom plate cushion layer, the other end of the grid cloth is mutually overlapped with the waterproof coiled material layer of the cushion layer on the top of the foundation beam, and the overlapping length is 10-15 cm;
and fourthly, plastering mortar in the fixed grid cloth, wherein the fullness of the mortar in the grid cloth is 100% after the mortar is plastered, so that the grid cloth and the mortar plastered surface are combined to form the waterproof protective layer for the side vertical surface of the foundation beam.
Furthermore, in the third step of the construction method, the grid cloth is laid smoothly without folds.
The grid cloth is preferably alkali-resistant grid cloth, and the mortar is preferably anti-crack mortar.
And C, pouring fine aggregate concrete protective layers on the lap joints of the waterproof protective layers of the side vertical surfaces of the foundation beams on the two sides and the waterproof roll material layer of the base plate cushion layer and on the foundation cushion layer at the bottom of the foundation beam groove between the waterproof protective layers of the side vertical surfaces of the foundation beams on the two sides and the waterproof roll material layer of the cushion layer at the top of the foundation beam.
Compared with the construction method of taking the cement board as the side vertical face waterproof coiled material protective layer in the traditional cement board construction, the construction method of the side vertical face protective layer after the waterproof coiled material construction is changed in the construction process. The inner sides of the base beams are not fixed in a form of cement boards and square timbers, but alkali-resistant gridding cloth and anti-crack mortar are used for plastering to solve the problem of the protective layers of the waterproof coiled materials on the two inner sides of the vertical surfaces of the base beams. The waterproof roll is tightly adhered to the waterproof roll as a waterproof side elevation protection layer. The waterproof protective layer formed by the construction method is stable and firm, convenient to construct and low in cost, and plays an effective protection role on the waterproof coiled material of the side vertical face in the bottom plate construction.
Drawings
FIG. 1 is a schematic diagram of a construction method of a waterproof protective layer of a side elevation cement board in the prior art;
FIG. 2 is a schematic view of the construction method of the waterproof protective layer of the side vertical cement board of the invention.
In the figure:
11-bottom foundation mat layer, 12-top foundation mat layer, 2-groove, 3-cement board tire membrane, 31-undisturbed soil, 4-waterproof coiled material, 51-top fine stone concrete protective layer, 52-bottom fine stone concrete protective layer, 61-cement board, 62-alkali-resistant mesh cloth and anti-crack mortar plastering combination, 7-rectangular wood back ridge, 8-inner support short wood board and 9-expansion pipe expansion nail connecting piece.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 2, the construction method of the waterproof structure for the side elevation of the foundation beam provided by the invention is performed after the excavation of the foundation beam groove is completed, and comprises the following steps:
pouring foundation cushion layers 11 and 12 at the bottom and the tops of two sides of a foundation beam groove, wherein grooves 2 are formed in two ends of the foundation cushion layer 11 at the bottom of the foundation beam groove, and removing internal support square timbers;
secondly, placing cement board formworks 3 in grooves 2 at two ends of a foundation cushion 11 at the bottom of a foundation beam groove respectively, fixing the upper ends of the cement board formworks 3 and undisturbed soil 31 by using reverse-pull steel wire ropes, and arranging a plurality of reverse-pull steel wire rope structures along the direction of the foundation beam groove at intervals of 1-1.5 m; paving waterproof rolls 4 on the inner side wall of the cement board bed mould 3, the foundation cushion layer 12 at the top of the foundation beam groove and the foundation cushion layer 11 at the bottom plate of the foundation beam groove so as to form a foundation beam side wall waterproof roll layer, a foundation beam top cushion waterproof roll layer and a bottom plate cushion waterproof roll layer;
thirdly, after the waterproof coiled material 4 is constructed, laying a mesh cloth on the waterproof coiled material layer on the side wall of the foundation beam on each side, wherein the mesh cloth is preferably an alkali-resistant mesh cloth, one end of the mesh cloth is mutually lapped with the waterproof coiled material layer of the bottom plate cushion layer, the other end of the mesh cloth is mutually lapped with the waterproof coiled material layer of the cushion layer on the top of the foundation beam, and the lapping length of both ends is 10-15 cm; the laid mesh fabric needs to be flat and has no wrinkles.
And fourthly, plastering mortar in the fixed grid cloth, wherein the mortar is preferably anti-crack mortar, after plastering the mortar, the fullness of the mortar in the grid cloth is 100%, after consolidation, a foundation beam side vertical surface waterproof protective layer is formed by combining the alkali-resistant grid cloth and the anti-crack mortar plastering 62, and the thickness of the foundation beam side vertical surface waterproof protective layer is 2-5 mm.
And finally, pouring fine aggregate concrete protective layers, namely the fine aggregate concrete protective layer 51 at the top and the fine aggregate concrete protective layer 52 at the bottom, on the lap joint of the foundation beam side vertical face waterproof protective layer at two sides (formed by the alkali-resistant mesh cloth and the anti-crack mortar plastering combination 62) formed in the fourth step and the foundation pad layer 11 at the bottom of the foundation beam groove between the foundation beam side vertical face waterproof protective layer and the bottom of the foundation beam groove, and on the lap joint of the foundation beam side vertical face waterproof protective layer at two sides and the foundation beam top pad layer waterproof roll layer.
From the effect of the engineering test example, the invention conveniently obtains good economic benefit and social benefit in quality, cost, construction period, environmental protection and the like. Through the inspection: alkali-resisting net cloth and the plastering of anti-crack mortar combine, and the side facade waterproof coating that forms pastes closely, can not take place among the prior art cement board when as waterproofing membrane protective layer, and the cement board is fixed insecure, easily drops, takes place to remove and causes the problem that the roof beam cross-section reduces, makes waterproofing membrane obtain more effective protection on the one hand, and on the other hand makes the cross-section of basic roof beam obtain effective assurance. In addition, the construction method does not need square timber supports, so that the construction is more convenient for operators to pour concrete and collect concrete, the construction speed is higher than that of the original method of using cement boards as protective layers, and the construction cost is lower than that of the original method of using cement boards as the protective layers of the waterproof coiled materials. The construction method has the advantages that after the construction of the basement is finished, the phenomena of beam section reduction and basement leakage are not found, the basement is always kept in a dry state, and the remarkable effect is achieved.
Although the present invention has been described above, the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit of the present invention, which falls within the protection of the present invention.
Claims (4)
1. A construction method of a waterproof structure of a side vertical surface of a foundation beam is carried out after excavation of a foundation beam groove is completed, and is characterized by comprising the following steps:
pouring a foundation cushion layer at the bottom and the tops of two sides of a foundation beam groove, wherein two ends of the foundation cushion layer (11) at the bottom of the foundation beam groove are provided with grooves (2);
secondly, placing cement board bed moulds (3) in grooves (2) at two ends of a foundation bed course (11) at the bottom of the foundation beam groove respectively, and paving waterproof coiled materials (4) on the inner side wall of each cement board bed mould (3), the foundation bed course (12) at the top of the foundation beam groove and the foundation bed course (11) of the foundation beam groove bottom plate so as to form a foundation beam side wall waterproof coiled material layer, a foundation beam top bed course waterproof coiled material layer and a bottom plate bed course waterproof coiled material layer;
thirdly, after the waterproof roll (4) is constructed, laying a grid cloth on the waterproof roll layer on the side wall of the foundation beam on each side, wherein one end of the grid cloth is mutually overlapped with the waterproof roll layer of the bottom plate cushion layer, and the overlapped part is marked as A1; the other end of the mesh cloth is mutually lapped with the waterproof coil layer of the cushion layer at the top of the foundation beam, the lapping position is marked as A2, and the lengths of the lapping positions A1 and A2 are both 10-15 cm;
and fourthly, plastering mortar in the fixed grid cloth, wherein the fullness of the mortar in the grid cloth is 100% after the mortar is plastered, so that the grid cloth and the mortar plastered surface are combined to form the waterproof protective layer for the side vertical surface of the foundation beam.
2. The construction method of the side elevation waterproof structure of the foundation beam as claimed in claim 1, wherein a fine stone concrete protective layer is poured on the overlapping part of the side elevation waterproof protective layer of the foundation beam formed in the fourth step and the waterproof roll material layer of the bottom slab and the foundation pad layer (11) at the bottom of the foundation beam groove between the side elevation waterproof protective layer of the foundation beam and the waterproof roll material layer of the top slab of the foundation beam.
3. The method for constructing a waterproof structure for a side elevation of a foundation beam as claimed in claim 1 or 2, wherein the mesh cloth is laid flat without wrinkles.
4. The construction method of the foundation beam side elevation waterproof structure according to claim 1 or 2, characterized in that: the grid cloth is alkali-resistant grid cloth, and the mortar is anti-crack mortar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910680483.7A CN112302045A (en) | 2019-07-26 | 2019-07-26 | Construction method of foundation beam side vertical face waterproof structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910680483.7A CN112302045A (en) | 2019-07-26 | 2019-07-26 | Construction method of foundation beam side vertical face waterproof structure |
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| CN112302045A true CN112302045A (en) | 2021-02-02 |
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| CN201910680483.7A Pending CN112302045A (en) | 2019-07-26 | 2019-07-26 | Construction method of foundation beam side vertical face waterproof structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324120A (en) * | 2022-07-26 | 2022-11-11 | 成都建工第四建筑工程有限公司 | Waterproof structure for side surface of large building foundation and construction method thereof |
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|---|---|---|---|---|
| CN101113592A (en) * | 2006-07-28 | 2008-01-30 | 中宏（天津）实业有限公司 | Underground engineering inner waterproofing process |
| CN103362146A (en) * | 2013-08-08 | 2013-10-23 | 天津住宅集团建设工程总承包有限公司 | Floor slab waterproof protective layer construction method |
| CN203475456U (en) * | 2013-08-09 | 2014-03-12 | 中建一局集团第三建筑有限公司 | GRC forming die plate system |
-
2019
- 2019-07-26 CN CN201910680483.7A patent/CN112302045A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113592A (en) * | 2006-07-28 | 2008-01-30 | 中宏（天津）实业有限公司 | Underground engineering inner waterproofing process |
| CN103362146A (en) * | 2013-08-08 | 2013-10-23 | 天津住宅集团建设工程总承包有限公司 | Floor slab waterproof protective layer construction method |
| CN203475456U (en) * | 2013-08-09 | 2014-03-12 | 中建一局集团第三建筑有限公司 | GRC forming die plate system |
Non-Patent Citations (1)
| Title |
|---|
| 陆汉时等: "基础侧立面防水保护层施工新法", 《建筑工人》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115324120A (en) * | 2022-07-26 | 2022-11-11 | 成都建工第四建筑工程有限公司 | Waterproof structure for side surface of large building foundation and construction method thereof |
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Application publication date: 20210202 |
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