CN113944342A - Leveling layer hollowing repairing method - Google Patents
Leveling layer hollowing repairing method Download PDFInfo
- Publication number
- CN113944342A CN113944342A CN202111218254.7A CN202111218254A CN113944342A CN 113944342 A CN113944342 A CN 113944342A CN 202111218254 A CN202111218254 A CN 202111218254A CN 113944342 A CN113944342 A CN 113944342A
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- Prior art keywords
- grouting
- leveling layer
- hollowing
- repairing
- inner cavity
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 239000011440 grout Substances 0.000 claims abstract description 14
- 239000011230 binding agent Substances 0.000 claims abstract description 12
- 238000007789 sealing Methods 0.000 claims abstract description 10
- 238000007569 slipcasting Methods 0.000 claims description 10
- 239000003795 chemical substances by application Substances 0.000 claims description 9
- 239000004567 concrete Substances 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims description 6
- 239000000428 dust Substances 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 238000010276 construction Methods 0.000 abstract description 15
- 239000000463 material Substances 0.000 abstract description 4
- 239000011150 reinforced concrete Substances 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 abstract description 2
- 239000000853 adhesive Substances 0.000 description 5
- 230000001070 adhesive effect Effects 0.000 description 5
- 239000004035 construction material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
Images
Classifications
-
- 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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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Working Measures On Existing Buildindgs (AREA)
Abstract
The invention discloses a leveling layer hollowing repairing method, and relates to the technical field of reinforced concrete construction. The method aims to solve the problems that the existing hollowing repairing method for removing a leveling layer with local hollowing and then secondarily hanging a net and plastering has the problems of increasing the engineering rework cost and causing material and labor waste. The method comprises the following steps: the method comprises the steps of detecting and determining the position, the area and the degree of an empty drum part needing to be repaired, sealing a surface crack of a leveling layer on the upper portion of the empty drum part, dividing the empty drum part needing to be repaired into a plurality of closed grouting units, wherein each grouting unit is provided with a grouting opening and a grout overflow hole, and respectively injecting a binder into an inner cavity of the empty drum part of each grouting unit through the grouting openings, so that the leveling layer and a base layer are fully combined into a whole by the binder in the inner cavity of the empty drum part.
Description
Technical Field
The invention relates to the technical field of reinforced concrete construction, in particular to a leveling layer hollowing repairing method.
Background
At present, some common quality problems and construction difficulties exist in building decoration construction, wherein the local hollowing phenomenon of a leveling layer is particularly prominent, the engineering quality and the subsequent construction progress are seriously influenced, a common treatment method is to remove the leveling layer with local hollowing, and after an interface is cleaned, secondary net hanging plastering and maintenance are carried out.
Disclosure of Invention
The method aims to solve the problems that the existing hollowing repairing method for removing a leveling layer with local hollowing and then secondarily hanging a net and plastering has the problems of increasing the engineering rework cost and causing material and labor waste. The invention aims to provide a leveling layer hollowing repairing method.
The technical scheme adopted by the invention for solving the technical problems is as follows: the leveling layer hollowing repairing method comprises the following steps:
s1: sealing the surface cracks of the leveling layer;
s2: dividing the hollowing part to be repaired into a plurality of closed grouting units, wherein each grouting unit is provided with a grouting opening and a grout overflow hole;
s3: and respectively injecting a binder into the inner cavity of the hollow part of each grouting unit through the grouting port, so that the leveling layer and the base layer are fully combined into a whole by the binder in the inner cavity of the hollow part.
The leveling layer hollowing repairing method comprises the steps of firstly, detecting and determining the position, the area and the degree of a hollowing part needing to be repaired, sealing a surface crack of the leveling layer on the upper part of the hollowing part, dividing the hollowing part needing to be repaired into a plurality of closed grouting units, arranging each grouting unit with a grouting opening and a grout overflow hole, and respectively injecting a binder into an inner cavity of the hollowing part of each grouting unit through the grouting openings so that the binder in the inner cavity of the hollowing part fully combines the leveling layer and a base layer into a whole; the hollowing part is divided into a plurality of closed grouting units and grouting is respectively carried out, so that the inner cavity of each grouting unit is tightly grouted, the phenomenon of secondary hollowing is avoided, and the repairing effect of the hollowing part is ensured; moreover, the repairing method is simple in construction steps, other working procedures are not affected in the construction process, and the problems that secondary damage is easily caused due to vibration removal and time and materials are wasted due to secondary reworking in the traditional repairing method for the hollowing part are solved; in addition, the construction material adopted by the repairing method is non-toxic and harmless, and the construction material has the same deformability and durability as the original structure, so that the engineering quality of the repaired structure is ensured, and the repairing method is an environment-friendly repairing technology.
Further, in step S1, before sealing the surface crack of the leveling layer, the method further includes: and cleaning dust in the inner cavity of the empty drum part by using compressed air and/or pressurized water.
Further, in step S1, a concrete crack repair agent is injected into the surface crack of the leveling layer by using a needle tube for sealing.
Further, the step S2 further includes: the hollowing part needing repairing is divided into a plurality of closed grouting units through the partition strip, holes are drilled along the periphery of the grouting units, and concrete crack repairing agents are sequentially injected along the drilled holes to form the partition strip.
Further, in the step S2, the area of the grouting unit is less than 1m2。
Further, the step S3 further includes: and a grouting nail is vertically inserted into the grouting opening, the bottom of the grouting nail is communicated with the inner cavity of the hollow part, the top of the grouting nail is communicated with a multistage pressure grouting machine, and the multistage pressure grouting machine injects a binder into the inner cavity of the hollow part through the grouting nail.
Furthermore, the slip casting nail is the cavity tube-shape, and slip casting nail lower part lateral wall is equipped with at least one slip casting hole that transversely link up, and behind the basic unit was squeezed into perpendicularly to the slip casting nail tip, at least one slip casting hole can communicate with the hollowing position.
Drawings
FIG. 1 is a schematic view of an embodiment of a leveling layer hollowing repair method of the present invention;
fig. 2 is a schematic structural view of a grouting nail according to an embodiment of the invention.
The numbers in the figures are as follows:
a base layer 10; a leveling layer 20; a grout outlet 21; a grouting port 22; a hollowing portion 30; a dividing strip 40; grouting nails 50; a bottom grouting hole 51; a top grout hole 52; a central grouting hole 53.
Detailed Description
The invention is described in further detail below with reference to the figures and specific examples. It is to be noted that the drawings are in a very simplified form and are not to precise scale, which is merely for the purpose of facilitating and distinctly claiming the embodiments of the present invention. For convenience of description, the directions of "up" and "down" described below are the same as the directions of "up" and "down" in the drawings, but this is not a limitation of the technical solution of the present invention.
In this embodiment, taking the hollowing repair construction of a leveling layer of a step of a grandstand of a theater building as an example, the hollowing repair method of a leveling layer according to the present invention is described below with reference to fig. 1 and 2, and the specific steps are as follows:
s1: as shown in fig. 1, the stand steps are respectively a base layer 10, an empty drum part 30 and a leveling layer 20 from bottom to top, wherein the base layer 10 is a concrete floor slab of the stand steps, the infrared thermal imaging technology is adopted to detect the thermal defects of the leveling layer 20 of the stand steps, the position, the area and the degree of the empty drum part 30 needing to be repaired are determined, and the concrete crack repairing agent is adopted to seal the surface cracks of the leveling layer 20;
s2: dividing the hollowing part 30 to be repaired into a plurality of closed grouting units according to the area of the hollowing part 30, wherein each grouting unit is provided with a grouting opening 22 and a grout overflow hole 21, so that grout can enter from the grouting opening 22 and exit from the grout overflow hole 21;
s3: and respectively injecting the adhesive into the inner cavity of the hollowing part 30 of each grouting unit through the grouting port 22 until the adhesive flows out of the grout overflow hole 21, and after standing for 24 hours, cleaning the adhesive overflowing from the surface of the leveling layer 20, so that the leveling layer 20 and the base layer 10 are fully combined into a whole by the adhesive in the inner cavity of the hollowing part 30.
The leveling layer hollowing repairing method comprises the steps of firstly, detecting and determining the position, the area and the degree of a hollowing part 30 needing to be repaired, sealing a surface crack of the leveling layer 20 on the upper part of the hollowing part 30, dividing the hollowing part 30 needing to be repaired into a plurality of closed grouting units, arranging each grouting unit with a grouting opening 22 and a grout overflow hole 21, and respectively injecting a binder into an inner cavity of the hollowing part 30 of each grouting unit through the grouting openings 22 so that the leveling layer 20 and a base layer 10 are fully combined into a whole by the binder in the inner cavity of the hollowing part 30; the hollowing part 30 is divided into a plurality of closed grouting units and grouting is respectively carried out, so that the inner cavity of each grouting unit is tightly grouted, the phenomenon of secondary hollowing is avoided, and the repairing effect of the hollowing part 30 is ensured; moreover, the repairing method is simple in construction steps, other working procedures are not affected in the construction process, and the problems that secondary damage is easily caused due to vibration removal and time and materials are wasted due to secondary reworking in the traditional repairing method for the hollowing part 30 are solved; in addition, the construction material adopted by the repairing method is non-toxic and harmless, and the construction material has the same deformability and durability as the original structure, so that the engineering quality of the repaired structure is ensured, and the repairing method is an environment-friendly repairing technology.
In the step S1, before sealing the surface crack of the leveling layer 20, the method further includes: the dust in the inner cavity of the empty drum part 30 is thoroughly cleaned by using compressed air and/or pressurized water, so that the bonding effect between the leveling layer 20 and the base layer 10 is improved. Specifically, the air pump is used for sweeping the surface cracks and dust impurities in the hollowing part 30 completely, and then the grouting pump is used for adding clean water to wash the residual dust in the inner cavity of the hollowing part 30 until the clean water flows out.
In the step S1, the concrete crack repairing agent is proportionally prepared, and the concrete crack repairing agent is injected into the surface crack of the leveling layer 20 by using the needle tube, so that the surface crack is tightly sealed, the needle tube can prevent the leveling layer 20 from being damaged and damaged by external force, and the crack repairing agent is prevented from being wasted.
The step S2 further includes: the hollowing part 30 needing repairing is divided into a plurality of closed grouting units through the partition strip 40, holes are drilled along the periphery of the grouting units, and concrete crack repairing agents are sequentially injected along the drilled holes by utilizing a multi-stage pressure grouting machine to form the partition strip 40, so that each grouting unit is tightly plugged, and the smooth proceeding of subsequent grouting plugging construction is ensured.
In step S2, the area of the grouting unit is less than 1m2Not only can the repairing effect of the hollowing part 30 be improved, but also the construction efficiency is improved.
Referring to fig. 1 and 2, in the step S3, the grouting pin 50 is vertically inserted into the grouting opening 22, the bottom of the grouting pin 50 is communicated with the cavity of the empty-drum portion 30, the top of the grouting pin 50 is communicated with the multistage pressure grouting machine, and the multistage pressure grouting machine injects the adhesive into the cavity of the empty-drum portion 30 through the grouting pin 50.
Furthermore, as shown in fig. 2, the grouting nail 50 is hollow and cylindrical, and at least one grouting hole is transversely formed in the side wall of the lower portion of the grouting nail 50, and after the end portion of the grouting nail 50 is vertically driven into the base layer 10, at least one grouting hole can be communicated with the empty drum portion 30, in this embodiment, 3 grouting holes are formed in the side wall of the grouting nail 50, namely, a bottom grouting hole 51, a middle grouting hole 53 and a top grouting hole 52, and the position of the bottom grouting hole 51 is closer to the base layer 10, so that bubbles can be prevented from being formed in the empty drum portion 30 by the grout flowing along the surface of the base layer 10, and in case that the bottom of the leveling layer 20 is layered rather than empty drum, the bottom grouting hole 51 is arranged to enable the grout in the score layer to be filled more sufficiently, the top grouting hole 52 can be filled in the top of the empty drum portion 30 with a thickness of 1.5-2.0 cm, and the middle grouting hole 53 and the top grouting hole 52 are arranged to further improve the filling efficiency of the grout, through the multistage grouting of grouting holes, the grouting process can be improved in a targeted manner, so that the grouting process can be more flexibly applied to the repair construction of the hollowing parts 30 with different thicknesses.
It should be noted that the hollowing repair construction of the leveling layer of the stand step recited in the embodiment is only an example, and the hollowing repair method can also be applied to the hollowing repair construction engineering of the leveling layer at the ground, wall surface, top surface and other parts of the building.
The above description is only for the purpose of describing the preferred embodiments of the present invention, and is not intended to limit the scope of the present invention, and any variations and modifications made by those skilled in the art based on the above disclosure are within the scope of the appended claims.
Claims (7)
1. The leveling layer hollowing repairing method is characterized by comprising the following steps:
s1: sealing the surface cracks of the leveling layer;
s2: dividing the hollowing part to be repaired into a plurality of closed grouting units, wherein each grouting unit is provided with a grouting opening and a grout overflow hole;
s3: and respectively injecting a binder into the inner cavity of the hollow part of each grouting unit through the grouting port, so that the leveling layer and the base layer are fully combined into a whole by the binder in the inner cavity of the hollow part.
2. The method for repairing the hollowing of the leveling layer according to claim 1, wherein the step S1, before sealing the surface crack of the leveling layer, further comprises: and cleaning dust in the inner cavity of the empty drum part by using compressed air and/or pressurized water.
3. The method for repairing the hollowing of the leveling layer according to claim 1, wherein: in the step S1, a concrete crack repairing agent is injected into the surface crack of the leveling layer by using a needle tube for sealing.
4. The method for repairing a leveling layer drum according to claim 1, wherein the step S2 further comprises: the hollowing part needing repairing is divided into a plurality of closed grouting units through the partition strip, holes are drilled along the periphery of the grouting units, and concrete crack repairing agents are sequentially injected along the drilled holes to form the partition strip.
5. The method for repairing the hollowing of the leveling layer according to claim 1, wherein: in the step S2, the area of the grouting unit is less than 1m2。
6. The method for repairing a leveling layer drum according to claim 1, wherein the step S3 further comprises: and a grouting nail is vertically inserted into the grouting opening, the bottom of the grouting nail is communicated with the inner cavity of the hollow part, the top of the grouting nail is communicated with a multistage pressure grouting machine, and the multistage pressure grouting machine injects a binder into the inner cavity of the hollow part through the grouting nail.
7. The method for repairing the hollowing of the leveling layer according to claim 6, wherein: the slip casting nail is the cavity tube-shape, and slip casting nail lower part lateral wall is equipped with at least one slip casting hole that transversely link up, and behind the basic unit was squeezed into perpendicularly to the slip casting nail tip, at least one slip casting hole can communicate with the hollowing position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111218254.7A CN113944342A (en) | 2021-10-20 | 2021-10-20 | Leveling layer hollowing repairing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111218254.7A CN113944342A (en) | 2021-10-20 | 2021-10-20 | Leveling layer hollowing repairing method |
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| Publication Number | Publication Date |
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| CN113944342A true CN113944342A (en) | 2022-01-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111218254.7A Pending CN113944342A (en) | 2021-10-20 | 2021-10-20 | Leveling layer hollowing repairing method |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855647A (en) * | 2022-04-20 | 2022-08-05 | 中铁大桥局集团有限公司 | Method for repairing crack of waterproof protection layer of bridge deck |
| CN115898073A (en) * | 2022-12-01 | 2023-04-04 | 山东北展建筑工程有限公司 | Epoxy floor hollowing repair construction method |
| CN115961800A (en) * | 2023-02-15 | 2023-04-14 | 上海广顺建设工程有限公司 | Method for repairing local hollowing of outer wall |
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| CN109555526A (en) * | 2018-11-16 | 2019-04-02 | 中铁二十三局集团有限公司 | Grouting strengthening method for underground cavity |
| US20190145190A1 (en) * | 2016-06-23 | 2019-05-16 | Bceg Environmental Remediation Co.,Ltd | In-situ injection of soil and groundwater - high pressure rotary jet grouting in-situ remediation system and method |
| US20190224729A1 (en) * | 2016-06-23 | 2019-07-25 | Bceg Environmental Remediation Co.,Ltd | In-situ chemical oxidation high pressure injection optimization remediation method for soil and groundwater |
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2021
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Patent Citations (7)
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| CN2929062Y (en) * | 2006-07-31 | 2007-08-01 | 蒋才荣 | Reusable concrete crack grouting pipe |
| JP2009270260A (en) * | 2008-04-30 | 2009-11-19 | Sekisui House Ltd | Crack repairing method for concrete structure |
| CN104652416A (en) * | 2015-03-06 | 2015-05-27 | 上海建工五建集团有限公司 | Construction method for strengthening base layer soil body under floor cushion layer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114855647A (en) * | 2022-04-20 | 2022-08-05 | 中铁大桥局集团有限公司 | Method for repairing crack of waterproof protection layer of bridge deck |
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| CN115898073A (en) * | 2022-12-01 | 2023-04-04 | 山东北展建筑工程有限公司 | Epoxy floor hollowing repair construction method |
| CN115961800A (en) * | 2023-02-15 | 2023-04-14 | 上海广顺建设工程有限公司 | Method for repairing local hollowing of outer wall |
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Application publication date: 20220118 |
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