CN111809913A - Construction method for water seepage and leakage stoppage of front-mounted roof - Google Patents
Construction method for water seepage and leakage stoppage of front-mounted roof Download PDFInfo
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- CN111809913A CN111809913A CN202010705277.XA CN202010705277A CN111809913A CN 111809913 A CN111809913 A CN 111809913A CN 202010705277 A CN202010705277 A CN 202010705277A CN 111809913 A CN111809913 A CN 111809913A
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- grouting
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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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
- E04G23/0211—Arrangements for filling cracks or cavities in building constructions using injection
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
- E04D13/16—Insulating devices or arrangements in so far as the roof covering is concerned, e.g. characterised by the material or composition of the roof insulating material or its integration in the roof structure
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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
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0281—Repairing or restoring roofing or roof covering
Abstract
The invention discloses a positive roof water seepage and leakage stoppage construction method, which comprises the following process flows in sequence: cleaning a base layer → checking a grouting part → distributing holes → drilling holes → cleaning holes, protecting holes → distributing nozzles → grouting → disassembling nozzles; the method solves the problem of water seepage and leakage stoppage of the existing positive roof, water and air between layers are driven away by slurry in the modes of filling, permeating, compacting and the like, the slurry occupies the position, the original gaps are completely filled by the slurry after a certain time of manual control, the whole water seepage channel is sealed, the water impermeability of the roof is improved, and the effect of no seepage and no leakage can be completely achieved through a water closing test for 24-48 hours.
Description
Technical Field
The invention relates to the technical field of water seepage and leakage stoppage of an upright roof, in particular to a construction method for water seepage and leakage stoppage of the upright roof.
Background
The existing positive roof mainly adopts the following steps when seepage and leakage stoppage are carried out: (1) performing injection and grouting treatment on the roof structure plate; (2) and (4) dismantling the roof and waterproofing again.
In the above two methods, the following problems exist:
1. the injection treatment can not solve the water seepage from the root, only the cracks are blocked, and the roof is still soaked in water.
2. The injection treatment cannot ensure the lasting effect time after plugging because of different plugging materials.
3. The roof is manufactured again, the whole roof is dismantled and knocked, and the roof needs to be carried manually, so that the labor cost is increased, the cost is increased, and the roof is economically unreasonable.
Disclosure of Invention
The invention aims to provide a positive roof water seepage and leakage stoppage construction method, which can improve the water impermeability of a roof, and can completely achieve the effect of no seepage and no leakage after 24-48 h water closing tests.
The invention is realized by the following technical scheme: the construction method for water seepage and leakage stoppage of the front-mounted roof comprises the following specific steps:
1) cleaning a base layer: professional constructors clean impurities on the surface of the base layer;
2) checking the grouting part: checking a construction drawing according to the site position, and analyzing a specific grouting part;
3) hole distribution: analyzing the positive roof, and arranging grouting hole positions from one end to the other end according to the condition of the positive roof, wherein the distance between the grouting hole positions and the grouting hole positions is 0.3-0.6 m (specifically determined according to the field condition);
4) drilling: after hole distribution is finished, a constructor holds an electric hammer to drill holes according to the hole distribution positions, a grouting hole with the hole diameter of 14-22 mm and the hole center vertical to the roof is drilled (drilled), and the depth of the grouting hole is preferably set to enter the position above the heat insulation layer (or in the heat insulation layer or above the steam barrier) (specifically according to the field condition); during operation, drilling is strictly carried out according to the determined hole positions, and holes are drilled from one end to the other end one by one during drilling;
5) cleaning and protecting the holes: after drilling is finished, cleaning up dregs in the grouting hole, and then adopting a protective measure to protect the grouting hole, and strictly preventing sundries from entering the hole;
6) distributing a nozzle: a grouting nozzle (also called as a water stopping needle head) is arranged in the drilled grouting hole and is screwed by a special inner hexagonal wrench, so that no gap exists between the periphery of the grouting nozzle and the grouting hole, water is not leaked, and loosening is avoided during grouting;
7) grouting: an electric grouting machine is adopted for grouting, the grouting pressure is 0.4-0.9 MPa, grouting is started section by section hole by hole (grouting material: high-fluidity resin adhesive is used), and a horizontal seam is arranged from one end to the other end; when the grout inlet amount of each hole section is less than 5mL/min, and the pressure is unchanged after 1-2min, the hole grouting can be finished, and the adjacent grouting holes are changed;
8) removing the nozzle: after grouting is finished, observing for a period of time (preferably 12-24 h), and then confirming that the exposed grouting nozzle can be removed or knocked off after no water leakage occurs, and cleaning up the solidified leaked grouting liquid.
In order to further realize the invention, the following arrangement mode is adopted: during the drilling, the drilling operation is strictly performed according to the determined hole positions, and the holes are drilled from one end to the other end one by one.
In order to further realize the invention, the following arrangement mode is adopted: and when the grouting is carried out, the grouting material is high-fluidity resin glue.
Compared with the prior art, the invention has the following advantages and beneficial effects:
(1) according to the invention, through a high-pressure grouting principle, under the action of grouting pressure, slurry can be split from gaps between the outer surface of the leveling layer and the waterproof layer and between the heat preservation layer and the slope layer, the channels are separated from the gaps, the slurry drives away moisture and air between the layers in the modes of filling, permeating, compacting and the like, the slurry occupies the positions, after a certain time of manual control, the original gaps are completely filled with the slurry, the whole water seepage channel is sealed, the water impermeability of the roof is improved, and the effect of no leakage can be completely achieved through a 24-48 h water closing test.
Drawings
Fig. 1 is a schematic view of an upright roof water seepage and plugging structure.
Detailed Description
The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The process flow of the inverted roof water seepage and leakage stoppage construction comprises the following steps: cleaning a base layer → checking a grouting part → distributing holes → drilling holes → cleaning holes, protecting holes → distributing nozzles → grouting → disassembling nozzles.
Example 1:
as shown in fig. 1, the overall structure of the front roof sequentially comprises a protective layer 1, a rigid layer 2, an isolation layer 3, a waterproof layer 4, a leveling layer 5, a slope finding layer 6, a heat insulation layer 7, a steam barrier layer 8, a leveling layer 5, a slope finding layer 6 and a concrete structure layer 9 from top to bottom, when plugging is performed, grouting holes need to be communicated from the protective layer 1 to the upper side of the steam barrier layer 8, when grouting hole positions are arranged, the distance between the grouting holes is 0.3m, and the aperture of the grouting holes is 14 mm.
The invention designs an upright roof water seepage and leakage stoppage construction method, which comprises the following detailed steps:
1) cleaning a base layer: professional constructors clean impurities on the surface of the base layer;
2) checking the grouting part: checking a construction drawing according to the site position, and analyzing a specific grouting part;
3) hole distribution: analyzing the positive roof, and arranging grouting hole positions from one end to the other end according to the condition of the positive roof, wherein the distance between the grouting hole positions and the grouting hole positions is 0.3 m;
4) drilling: after hole distribution is finished, a constructor holds an electric hammer to drill holes according to the hole distribution positions, and drills (drills) grouting holes with the hole diameter of 14mm and the hole centers vertical to the roof, wherein the hole depths of the grouting holes are suitable for entering the positions above the heat insulation layer (or in the heat insulation layer or above the steam barrier layer) (particularly according to the field conditions); during operation, drilling is strictly carried out according to the determined hole positions, and holes are drilled from one end to the other end one by one during drilling;
5) cleaning and protecting the holes: after drilling is finished, cleaning up dregs in the grouting holes immediately, and after cleaning up, adopting protective measures to protect the grouting holes and strictly forbidding sundries from entering the holes;
6) distributing a nozzle: a grouting nozzle (also called as a water stopping needle head) is arranged in the drilled grouting hole and is screwed by a special inner hexagonal wrench, so that no gap exists between the periphery of the grouting nozzle and the grouting hole, water is not leaked, and loosening is avoided during grouting;
7) grouting: an electric grouting machine is adopted for grouting, the grouting pressure is 0.4MPa, grouting is started section by section hole by hole (grouting material: high-fluidity resin adhesive is used), and a horizontal seam is arranged from one end to the other end; when the grout inlet amount of each hole section is less than 5mL/min, the grouting of the hole can be finished after 1min when the pressure is unchanged, and adjacent grouting holes are grouted;
8) removing the nozzle: after grouting is finished, observing for a period of time (12 h), removing or knocking off the exposed grouting nozzle after water leakage is confirmed, and cleaning the solidified leaked grouting liquid.
Example 2:
as shown in fig. 1, the overall structure of the front roof sequentially comprises a protective layer 1, a rigid layer 2, an isolation layer 3, a waterproof layer 4, a leveling layer 5, a slope finding layer 6, a heat insulation layer 7, a steam barrier layer 8, a leveling layer 5, a slope finding layer 6 and a concrete structure layer 9 from top to bottom, when plugging is performed, grouting holes need to be communicated from the protective layer 1 to the upper side of the steam barrier layer 8, when the arrangement of grouting hole sites is performed, the distance between the grouting holes is 0.45m, and the aperture of the grouting holes is 18 mm.
The invention designs an upright roof water seepage and leakage stoppage construction method, which comprises the following detailed steps:
1) cleaning a base layer: professional constructors clean impurities on the surface of the base layer;
2) checking the grouting part: checking a construction drawing according to the site position, and analyzing a specific grouting part;
3) hole distribution: analyzing the positive roof, and arranging grouting hole positions from one end to the other end according to the condition of the positive roof, wherein the distance between the grouting hole positions and the grouting hole positions is 0.45 m;
4) drilling: after hole distribution is finished, a constructor holds an electric hammer to drill holes according to the hole distribution positions, and drills (drills) grouting holes with the hole diameter of 18mm and the hole centers vertical to the roof, wherein the hole depths of the grouting holes are suitable for entering the positions above the heat insulation layer (or in the heat insulation layer or above the steam barrier layer) (particularly according to the field conditions); during operation, drilling is strictly carried out according to the determined hole positions, and holes are drilled from one end to the other end one by one during drilling;
5) cleaning and protecting the holes: after drilling is finished, cleaning up dregs in the grouting holes immediately, and after cleaning up, adopting protective measures to protect the grouting holes and strictly forbidding sundries from entering the holes;
6) distributing a nozzle: a grouting nozzle (also called as a water stopping needle head) is arranged in the drilled grouting hole and is screwed by a special inner hexagonal wrench, so that no gap exists between the periphery of the grouting nozzle and the grouting hole, water is not leaked, and loosening is avoided during grouting;
7) grouting: an electric grouting machine is adopted for grouting, the grouting pressure is 0.6MPa, grouting is started section by section hole by hole (grouting material: high-fluidity resin adhesive is used), and a horizontal seam is arranged from one end to the other end; when the grout inlet amount of each hole section is less than 5mL/min, the grouting of the hole can be finished when the pressure is unchanged after 1.5min, and the adjacent grouting holes are changed;
8) removing the nozzle: after grouting is finished, observing for a period of time (18 h), removing or knocking off the exposed grouting nozzle after water leakage is confirmed, and cleaning the solidified leaked grouting liquid.
Example 3:
as shown in fig. 1, the overall structure of the front roof sequentially comprises a protective layer 1, a rigid layer 2, an isolation layer 3, a waterproof layer 4, a leveling layer 5, a slope finding layer 6, a heat insulation layer 7, a steam barrier layer 8, a leveling layer 5, a slope finding layer 6 and a concrete structure layer 9 from top to bottom, when plugging is performed, grouting holes need to be communicated from the protective layer 1 to the upper side of the steam barrier layer 8, when the arrangement of grouting hole sites is performed, the distance between the grouting holes is 0.6m, and the aperture of the grouting holes is 22 mm.
The invention designs an upright roof water seepage and leakage stoppage construction method, which comprises the following detailed steps:
1) cleaning a base layer: professional constructors clean impurities on the surface of the base layer;
2) checking the grouting part: checking a construction drawing according to the site position, and analyzing a specific grouting part;
3) hole distribution: analyzing the positive roof, and arranging grouting hole positions from one end to the other end according to the condition of the positive roof, wherein the distance between the grouting hole positions and the grouting hole positions is 0.6 m;
4) drilling: after hole distribution is finished, a constructor holds an electric hammer to drill holes according to the hole distribution positions, and drills (drills) grouting holes with the hole diameter of 22mm and the hole centers vertical to the roof, wherein the hole depths of the grouting holes are suitable for entering the positions above the heat insulation layer (or in the heat insulation layer or above the steam barrier layer) (particularly according to the field conditions); during operation, drilling is strictly carried out according to the determined hole positions, and holes are drilled from one end to the other end one by one during drilling;
5) cleaning and protecting the holes: after drilling is finished, cleaning up dregs in the grouting holes immediately, and after cleaning up, adopting protective measures to protect the grouting holes and strictly forbidding sundries from entering the holes;
6) distributing a nozzle: a grouting nozzle (also called as a water stopping needle head) is arranged in the drilled grouting hole and is screwed by a special inner hexagonal wrench, so that no gap exists between the periphery of the grouting nozzle and the grouting hole, water is not leaked, and loosening is avoided during grouting;
7) grouting: an electric grouting machine is adopted for grouting, the grouting pressure is 0.9MPa, grouting is started section by section hole by hole (grouting material: high-fluidity resin adhesive is used), and a horizontal seam is arranged from one end to the other end; when the grout inlet amount of each hole section is smaller than 5mL/min, the grouting of the hole can be finished after 2min when the pressure is unchanged, and the adjacent grouting holes are grouted;
8) removing the nozzle: after grouting is finished, after observation for a period of time (24 h), the exposed grouting nozzle can be removed or knocked off after water leakage is confirmed, and solidified leaked grouting liquid is cleaned.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications and equivalent variations of the above embodiments according to the technical spirit of the present invention are included in the scope of the present invention.
Claims (3)
1. The positive roof water seepage and leakage stoppage construction method is characterized by comprising the following steps: the method comprises the following specific steps:
1) cleaning a base layer;
2) checking the grouting part: checking a construction drawing according to the site position, and analyzing a specific grouting part;
3) hole distribution: analyzing the positive roof, and arranging grouting hole positions from one end to the other end according to the condition of the positive roof, wherein the distance between the grouting hole positions and the grouting hole positions is 0.3-0.6 m;
4) drilling: after hole distribution is finished, a constructor holds an electric hammer by hand to drill a grouting hole with the hole diameter of 14-22 mm and the hole center vertical to the roof according to the hole distribution position, and the depth of the grouting hole is preferably equal to the depth of the grouting hole above the heat insulation layer;
5) cleaning and protecting the holes: after drilling is finished, cleaning up dregs in the grouting holes, and then adopting a protective measure to protect the grouting holes;
6) distributing a nozzle: installing a grouting nozzle in the drilled grouting hole, and tightening the grouting nozzle by using a special inner hexagonal wrench, so that no gap exists between the periphery of the grouting nozzle and the grouting hole, water is not leaked, and loosening is avoided during grouting;
7) grouting: performing grouting by using an electric grouting machine, wherein the grouting pressure is 0.4-0.9 MPa, grouting is started section by section hole by hole, and a horizontal seam is arranged from one end to the other end; when the grout inlet amount of each hole section is less than 5mL/min, and the pressure is unchanged after 1-2min, the hole grouting can be finished, and the adjacent grouting holes are changed;
8) removing the nozzle: after grouting is finished, observation is carried out for a period of time, the exposed grouting nozzle can be removed or knocked off after the water leakage is confirmed, and solidified leaked grouting liquid is cleaned.
2. The upright roof water seepage and leaking stoppage construction method according to claim 1, which is characterized in that: during the drilling, the drilling operation is strictly performed according to the determined hole positions, and the holes are drilled from one end to the other end one by one.
3. The upright roof water seepage and leaking stoppage construction method according to claim 1 or 2, which is characterized in that: and when the grouting is carried out, the grouting material is high-fluidity resin glue.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010705277.XA CN111809913A (en) | 2020-07-21 | 2020-07-21 | Construction method for water seepage and leakage stoppage of front-mounted roof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010705277.XA CN111809913A (en) | 2020-07-21 | 2020-07-21 | Construction method for water seepage and leakage stoppage of front-mounted roof |
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| CN111809913A true CN111809913A (en) | 2020-10-23 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197915A (en) * | 2022-01-12 | 2022-03-18 | 上海申继交通科技有限公司 | Roofing minimally invasive self-healing waterproof method |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103898873A (en) * | 2014-03-25 | 2014-07-02 | 安徽水安建设集团股份有限公司 | Water seepage plugging construction method of shaft construction seams under high water head |
| CN205502257U (en) * | 2016-01-29 | 2016-08-24 | 朱柯 | Leak protection water structure |
| CN106894585A (en) * | 2017-02-24 | 2017-06-27 | 河南天下无漏防水科技股份有限公司 | Reconstruction construction of waterproof layer technique |
| CN207620232U (en) * | 2017-12-05 | 2018-07-17 | 北京东方雨虹防水技术股份有限公司 | A kind of flat roof waterproof system |
| CN109281492A (en) * | 2018-09-30 | 2019-01-29 | 重庆市十八土鑫诚灌浆防水工程有限公司 | A kind of construction repaired for existing waterproof layer slip casting reconstruction |
| CN109779287A (en) * | 2019-03-06 | 2019-05-21 | 青岛海川建设集团有限公司 | Microdilatancy water-proof emulsion construction technology |
| CN111021428A (en) * | 2019-05-22 | 2020-04-17 | 四川童燊防水工程有限公司 | Underground building bottom plate plugging grouting and reinforcing construction method |
-
2020
- 2020-07-21 CN CN202010705277.XA patent/CN111809913A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103898873A (en) * | 2014-03-25 | 2014-07-02 | 安徽水安建设集团股份有限公司 | Water seepage plugging construction method of shaft construction seams under high water head |
| CN205502257U (en) * | 2016-01-29 | 2016-08-24 | 朱柯 | Leak protection water structure |
| CN106894585A (en) * | 2017-02-24 | 2017-06-27 | 河南天下无漏防水科技股份有限公司 | Reconstruction construction of waterproof layer technique |
| CN207620232U (en) * | 2017-12-05 | 2018-07-17 | 北京东方雨虹防水技术股份有限公司 | A kind of flat roof waterproof system |
| CN109281492A (en) * | 2018-09-30 | 2019-01-29 | 重庆市十八土鑫诚灌浆防水工程有限公司 | A kind of construction repaired for existing waterproof layer slip casting reconstruction |
| CN109779287A (en) * | 2019-03-06 | 2019-05-21 | 青岛海川建设集团有限公司 | Microdilatancy water-proof emulsion construction technology |
| CN111021428A (en) * | 2019-05-22 | 2020-04-17 | 四川童燊防水工程有限公司 | Underground building bottom plate plugging grouting and reinforcing construction method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114197915A (en) * | 2022-01-12 | 2022-03-18 | 上海申继交通科技有限公司 | Roofing minimally invasive self-healing waterproof method |
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Application publication date: 20201023 |
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