CN112942432A - Construction method of anti-leakage brick inspection well - Google Patents
Construction method of anti-leakage brick inspection well Download PDFInfo
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- CN112942432A CN112942432A CN202110441984.7A CN202110441984A CN112942432A CN 112942432 A CN112942432 A CN 112942432A CN 202110441984 A CN202110441984 A CN 202110441984A CN 112942432 A CN112942432 A CN 112942432A
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- inspection well
- well
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- leakage
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- 238000007689 inspection Methods 0.000 title claims abstract description 72
- 239000011449 brick Substances 0.000 title claims abstract description 30
- 238000010276 construction Methods 0.000 title claims abstract description 28
- 239000004570 mortar (masonry) Substances 0.000 claims abstract description 23
- 238000012360 testing method Methods 0.000 claims abstract description 21
- 239000003973 paint Substances 0.000 claims abstract description 10
- 230000001680 brushing effect Effects 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims description 14
- 239000011083 cement mortar Substances 0.000 claims description 12
- 239000011248 coating agent Substances 0.000 claims description 12
- 238000000576 coating method Methods 0.000 claims description 12
- 239000004576 sand Substances 0.000 claims description 7
- 239000004568 cement Substances 0.000 claims description 6
- 239000004567 concrete Substances 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 5
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000012797 qualification Methods 0.000 abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 29
- 239000010410 layer Substances 0.000 description 26
- 238000011144 upstream manufacturing Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 4
- 239000011505 plaster Substances 0.000 description 4
- 239000011241 protective layer Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011469 building brick Substances 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 238000004078 waterproofing Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/12—Manhole shafts; Other inspection or access chambers; Accessories therefor
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
-
- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/02—Manhole shafts or other inspection chambers; Snow-filling openings; accessories
- E03F5/021—Connection of sewer pipes to manhole shaft
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The invention discloses a construction method of an anti-leakage brick inspection well, which comprises the following steps: s1, construction of the inspection well foundation: digging a foundation pit, and filling a cushion layer, a leveling layer and a well foundation layer; s2, building an inspection well: building an inspection well by staggered joints of the bricks on the upper layer and the lower layer, reserving pipeline holes, and installing an upper well cover plate when the strength of the building mortar reaches 70-80% of a preset value; s3, connecting the pipeline into the reserved pipeline hole; s4, brushing waterproof paint on the inner wall of the well chamber; the invention provides a construction method of an anti-leakage brick inspection well, which can effectively prevent leakage and increase the qualification rate of a water-closing test.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a construction method of an anti-leakage brick inspection well.
Background
With the rapid development and continuous progress of science and technology in China, the degree of urbanization is continuously deepened, and municipal engineering projects such as urban comprehensive pipe galleries, water supply, drainage and the like are gradually increased. The inspection well is a well-shaped structure for connecting pipelines in a pipe network system, is generally arranged at a pipeline intersection, a turning position, a pipe diameter or gradient changing position, a drop position or a linear pipe section at certain intervals, is a necessary facility for inspecting and dredging the pipe network system and preventing the pipelines from being blocked, and is indispensable in the pipe network system.
At present, the brick inspection well is constructed and coated with waterproof mortar according to the requirements of a drawing set for preventing leakage. However, this method has the following disadvantages: cracks still appear after the waterproof mortar is adopted, and the waterproof mortar cannot pass a water-closing test; after the waterproof treatment is carried out on the plastering surface, the leakage phenomenon of the inspection well is effectively prevented, and the qualification rate of the water closing test is greatly improved.
In conclusion, the prior art also lacks a construction method for the anti-leakage brick inspection well, which can effectively prevent leakage and increase the qualification rate of the water-closing test.
Disclosure of Invention
The invention provides a construction method of an anti-leakage brick inspection well, which can effectively prevent leakage and increase the qualification rate of a water-closing test.
To achieve the purpose, the invention provides the following technical scheme:
a construction method of an anti-leakage brick inspection well is characterized by comprising the following steps:
s1, construction of the inspection well foundation: digging a foundation pit, and filling a cushion layer, a leveling layer and a well foundation layer;
s2, building an inspection well: building an inspection well by staggered joints of the bricks on the upper layer and the lower layer, reserving pipeline holes, and installing an upper well cover plate when the strength of the building mortar reaches 70-80% of a preset value;
s3, connecting the pipeline into the reserved pipeline hole;
and S4, brushing waterproof paint on the inner wall of the well chamber.
Preferably, in step S1, the leveling course is filled with crushed stones, the leveling course is filled with sand, and the well foundation course is filled with concrete.
Preferably, step S3 further includes: building a brick-sending coupon at the joint of the pipeline and the inspection well for reinforcement, and filling and compacting the mortar; and during connection, waterproof cement mortar is used for plugging the gap between the pipeline and the inspection well.
Preferably, the method further comprises step S5 of performing a water shut-off test on the inspection well.
The water closing test is to fill water in the inspection well and perform the water closing test after 24 hours; the water level of the water closing test is 2m above the inner top of the upstream pipeline, and if the height from the inner top of the upstream pipeline to the inspection port is less than 2m, the water level of the water closing test can be up to a wellhead.
Preferably, step S2 further includes performing inner plastering and outer plastering during the manhole building process.
Preferably, the inner plastering surface and the outer plastering surface are both made of waterproof cement mortar, and the plastering thickness is not more than 2 cm.
Preferably, the waterproof coating material in step S4 has not less than 2 layers.
Preferably, the weight ratio of the waterproof agent to the cement of the waterproof cement is 1: 2.
Preferably, the basic construction of the inspection well in the step S1 specifically includes: firstly, measuring and setting out a well position, and excavating according to the plane position and the elevation of a given inspection well; after the foundation pit is excavated to the bottom of the inspection well foundation pit, foundation sundries are manually and timely cleaned, the foundation pit is kept flat, clean and tidy, the foundation bearing capacity of the inspection well is detected, and the requirement on the foundation bearing capacity of the pipeline foundation is not less than 100 kPa. Constructing a foundation of the inspection well, and filling 15cm thick graded broken stones into the cushion layer; filling 5cm of sand into the leveling layer; c10 concrete with the thickness of 100mm is poured on the leveling layer to be used as a foundation of the inspection well.
Preferably, the masonry manhole of step S2 includes: after the well foundation construction is completed and the strength is reached, building a well, and fully sprinkling water to wet bricks for well building; building a well chamber according to the elevation of the pipe bottom, and reserving a reserved hole of the pipeline; in the process of building the inspection well, the upper and lower layers of bricks are staggered-joint built, the building mortar adopts 1:2 waterproof cement mortar, the mortar is full during building, and the steps are installed in time; after the well is built and the strength of the mortar reaches 75% of the design value, a well cover plate is timely installed, and the top surface elevation of the cover plate is checked before installation. After no error, sitting on the pad stably.
Preferably, internal plastering and external plastering are carried out in time when the inspection well is built by 50cm high, the internal plastering and the external plastering are made of 1:2 waterproof cement mortar, and the plastering thickness is not less than 2 cm; and at the end of each building, removing broken mortar bricks falling in the well.
Preferably, the step S3 of connecting the pipe into the reserved pipe hole includes: connecting a pipeline into the inspection well, wherein the outer edge of the connected pipe orifice is flush with the inside of the well wall, building brick tickets around the pipeline for reinforcement, and filling and compacting the joint; when connecting, the use ratio of 1:2, plugging the gap between the pipeline and the opening with waterproof cement mortar; and laying the chute as required.
Preferably, the painting of the waterproof paint on the inner wall of the well chamber in the step S4 includes: after the plastering strength meets the requirement, cleaning the plaster hard blocks, sand grains, dust and the like on the surface of the plastering, and then wiping the plaster once by using a clean wet cloth; brushing the waterproof coating for the first time, and brushing the waterproof coating for the second time after the coating is dried completely; coating a protective layer of waterproof paint on the waterproof paint; the protective layer is completely covered with the waterproof layer without omission.
Compared with the prior art, the invention has the beneficial effects and remarkable progresses that: according to the construction method of the anti-leakage brick inspection well, provided by the invention, after the plastering mortar is subjected to waterproof treatment, the leakage phenomenon of the inspection well is effectively prevented, and the qualification rate of a water-closing test is greatly improved.
Drawings
To more clearly illustrate the technical solution of the present invention, the drawings required for the embodiment of the present invention will be briefly described below.
It should be apparent that the drawings in the following description are only drawings of some embodiments of the invention, and that other drawings can be obtained by those skilled in the art without inventive exercise, and the other drawings also belong to the drawings required by the embodiments of the invention.
Fig. 1 is a flow chart of a construction method of an anti-leakage bricked inspection well according to an embodiment of the invention;
FIG. 2 is a schematic plan view of an inspection well according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of an inspection well according to an embodiment of the present invention;
reference numerals: 1. the construction method comprises the following steps of (1) a pipeline, 2, waterproof paint, 3, an inner plastering surface, 4, a well wall, 5, an outer plastering surface, 6, a chute, 7, plugging mortar, 8, a leveling layer, 9, a cushion layer, 10, a well foundation, 11 and a cover plate.
Detailed Description
In order to make the objects, technical solutions, advantageous effects and significant progress of the embodiments of the present invention clearer and more complete, the technical solutions in the embodiments of the present invention will be described below with reference to the drawings provided in the embodiments of the present invention.
It is to be understood that all of the described embodiments are merely some, and not all, embodiments of the invention; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is to be understood that:
in the present invention, unless otherwise specifically stated or limited, the terms "mounted," "connected," "fixed," and the like are to be understood broadly, and for example, may be fixedly connected, detachably connected, movably connected, or integrated; either directly or indirectly through intervening media, intangible signal, or even optical, communication between two elements, or an interaction between two elements, unless expressly limited otherwise.
The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It should be further noted that the following embodiments may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments.
The technical means of the present invention will be described in detail below with specific examples.
As shown in fig. 1, a construction method of an anti-leakage brick inspection well is shown, which comprises the following steps:
s1, construction of the inspection well foundation: digging a foundation pit, and filling a cushion layer, a leveling layer and a well foundation layer;
s2, building an inspection well: building an inspection well by staggered joints of the bricks on the upper layer and the lower layer, reserving pipeline holes, and installing an upper well cover plate when the strength of the building mortar reaches 70-80% of a preset value;
s3, connecting the pipeline into the reserved pipeline hole;
and S4, brushing waterproof paint on the inner wall of the well chamber.
In this embodiment, in step S1, the leveling course is filled with crushed stones, the leveling course is filled with sand, and the well foundation course is filled with concrete.
In this embodiment, step S3 further includes: building a brick-sending coupon at the joint of the pipeline and the inspection well for reinforcement, and filling and compacting the mortar; and during connection, waterproof cement mortar is used for plugging the gap between the pipeline and the inspection well.
In this embodiment, the method further includes step S5 of performing a water shut-off test on the inspection well. The water closing test is to fill water in the inspection well and perform the water closing test after 24 hours; the water level of the water closing test is 2m above the inner top of the upstream pipeline, and if the height from the inner top of the upstream pipeline to the inspection port is less than 2m, the water level of the water closing test can be up to a wellhead.
In this embodiment, step S2 further includes performing inner plastering and outer plastering during the manhole building process.
In this embodiment, the inner plastering surface and the outer plastering surface both adopt waterproof cement mortar, and the plastering thickness is not more than 2 cm.
In the present embodiment, the waterproof coating material in step S4 is not less than 2 layers.
In this example, the weight ratio of the waterproofing agent to the cement of the waterproof cement was 1: 2.
As shown in fig. 2 and 3, the inspection well adopting the construction method of the leakage-proof brick inspection well of the invention is shown, comprising a pipeline 1, a waterproof coating 2, an inner plastering 3, a well wall 4, an outer plastering 5, a chute 6, a plugging mortar 7, a leveling layer 8, a cushion layer 9, a well foundation 10 and a cover plate 11,
firstly, measuring and setting out a well position, and excavating according to the plane position and the elevation of a given inspection well; after the foundation pit is excavated to the bottom of the inspection well foundation pit, foundation sundries are manually and timely cleaned, the foundation pit is kept flat, clean and tidy, the foundation bearing capacity of the inspection well is detected, and the requirement on the foundation bearing capacity of the pipeline foundation is not less than 100 kPa. Constructing a foundation of the inspection well, and filling 15cm thick graded broken stones into the cushion layer 9; the leveling layer 8 is filled with 5cm of sand. C10 concrete with the thickness of 100mm is poured on the leveling layer 8 to be used as the foundation 10 of the inspection well.
After the well foundation 10 is constructed and the strength is reached, building a well, and fully sprinkling water to wet bricks for well building; building a well chamber according to the elevation of the pipe bottom, and reserving a reserved hole of the pipeline 1; the upper and lower layer bricks are staggeredly built in the process of building the inspection well, and the building mortar adopts the following steps: 2, waterproof cement mortar is full during masonry, and the step is installed in time; after the well is built and the strength of the mortar reaches 75% of the design value, the well cover plate 11 is installed in time, and the top surface elevation of the cover plate 11 is checked before installation. After no error, sitting on the pad stably.
The pipeline 1 is connected into an inspection well, the outer edge of the connected pipe orifice is flush with the inside of the well wall, brick tickets are built around the pipe for reinforcement, and the joint is full and compact in mortar; when connecting, the use ratio of 1:2, plugging mortar 7 by using waterproof cement mortar to fill a gap between the pipeline 1 and the opening; and laying the chute 6 as required.
The inner plastering surface 3 and the outer plastering surface 5 are timely carried out when the inspection well is built by 50cm in height, the inner plastering surface 3 and the outer plastering surface 5 adopt 1:2 of waterproof cement mortar, and the plastering thickness is not less than 2 cm; removing mortar broken bricks falling into the well after the building is finished every day;
after the plastering strength meets the requirement, cleaning the plaster hard blocks, sand grains, dust and the like on the surface of the plastering, and then wiping the plaster once by using a clean wet cloth; brushing the waterproof coating 2 for the first time, and brushing the waterproof coating 2 for the second time after the coating is dried completely; coating a protective layer of waterproof paint on the waterproof paint 2; the protective layer is completely covered with the waterproof layer without omission.
Filling water in the inspection well, and performing a water closing test after 24 hours; the water level of the water closing test is 2m above the inner top of the upstream pipeline, and if the height from the inner top of the upstream pipeline to the inspection port is less than 2m, the water level of the water closing test can be up to a wellhead.
In conclusion, the construction method of the anti-leakage brick inspection well provided by the invention can effectively prevent the inspection well from leaking after the plastering mortar is subjected to waterproof treatment. The method provided by the invention can effectively avoid water seepage and water leakage for a long time in a large number of field construction processes. In addition, the method of the invention is adopted to carry out site construction of 15 inspection wells, and the qualification rate of the water closing test is 100 percent.
During the description of the above description:
the description of the terms "this embodiment," "an embodiment of the invention," "as shown at … …," "further improved technical solution," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention; in this specification, the schematic representations of the terms used above are not necessarily for the same embodiment or example, and the particular features, structures, materials, or characteristics described, etc., may be combined or brought together in any suitable manner in any one or more embodiments or examples; furthermore, those of ordinary skill in the art may combine or combine features of different embodiments or examples and features of different embodiments or examples described in this specification without undue conflict.
Finally, it should be noted that:
the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same;
although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that various changes and modifications may be made, and equivalents may be substituted for elements thereof without departing from the scope of the embodiments of the present invention.
Claims (8)
1. A construction method of an anti-leakage brick inspection well is characterized by comprising the following steps:
s1, construction of the inspection well foundation: digging a foundation pit, and filling a cushion layer, a leveling layer and a well foundation layer;
s2, building an inspection well: building an inspection well by staggered joints of the bricks on the upper layer and the lower layer, reserving pipeline holes, and installing an upper well cover plate when the strength of the building mortar reaches 70-80% of a preset value;
s3, connecting the pipeline into the reserved pipeline hole;
and S4, brushing waterproof paint on the inner wall of the well chamber.
2. The construction method for the anti-leakage brick inspection well as claimed in claim 1, wherein the leveling course is filled with crushed stones, the leveling course is filled with sand, and the well foundation course is filled with concrete in step S1.
3. The method for constructing an anti-leakage masonry manhole as claimed in claim 1, wherein the step S3 further comprises: building a brick-sending coupon at the joint of the pipeline and the inspection well for reinforcement, and filling and compacting the mortar; and during connection, waterproof cement mortar is used for plugging the gap between the pipeline and the inspection well.
4. The method as claimed in claim 1, further comprising a step S5 of performing a water-closing test on the manhole.
5. The method for constructing the anti-leakage brick inspection well as claimed in claim 1, wherein the step S2 further comprises performing inner plastering and outer plastering during the construction of the inspection well.
6. The construction method of the anti-leakage brick inspection well as claimed in claim 4, wherein the inner plastering surface and the outer plastering surface are both made of waterproof cement mortar, and the plastering thickness is not more than 2 cm.
7. The construction method of the anti-leakage brick inspection well as claimed in claim 1, wherein the waterproof coating in the step S4 has not less than 2 layers.
8. The construction method of the anti-leakage brick inspection well as defined in claim 3 or 6, wherein the weight ratio of the waterproof agent to the cement of the waterproof cement is 1: 2.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110441984.7A CN112942432A (en) | 2021-04-23 | 2021-04-23 | Construction method of anti-leakage brick inspection well |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110441984.7A CN112942432A (en) | 2021-04-23 | 2021-04-23 | Construction method of anti-leakage brick inspection well |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914369A (en) * | 2021-10-08 | 2022-01-11 | 重庆永悦汇管廊科技有限公司 | Concrete inspection well |
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2021
- 2021-04-23 CN CN202110441984.7A patent/CN112942432A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113914369A (en) * | 2021-10-08 | 2022-01-11 | 重庆永悦汇管廊科技有限公司 | Concrete inspection well |
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