CN112282022A - Method for quickly constructing rain sewage inspection well on existing road - Google Patents
Method for quickly constructing rain sewage inspection well on existing road Download PDFInfo
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- CN112282022A CN112282022A CN202010966811.2A CN202010966811A CN112282022A CN 112282022 A CN112282022 A CN 112282022A CN 202010966811 A CN202010966811 A CN 202010966811A CN 112282022 A CN112282022 A CN 112282022A
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- inspection well
- concrete
- well
- dragging
- unloading plate
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- 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
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- 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
- E03F5/027—The bottom made of prefabricated segments
Abstract
The invention discloses a method for quickly constructing a rainwater and sewage inspection well on an existing road, which mainly comprises the following steps: the method comprises the following steps of carrying out dragging construction on a pipeline, positioning an inspection well, breaking a road surface, sinking the inspection well, plugging a gap between the pipeline and an opening of the open caisson, installing an unloading plate and a well base well cover, and recovering the road surface. The invention has the advantages that the construction process does not need to break roads in large area, the construction of the inspection well does not disturb the original roadbed, the unloading plate directly acts on the original roadbed, the risk of uneven settlement after backfilling around the traditional inspection well is avoided, the construction period is short, the working procedure is simple, the safety risk is low, the influence on the surrounding environment is small, and the invention is suitable for wide popularization.
Description
Technical Field
The invention relates to the technical field of newly-built reconstruction of drainage pipelines such as urban road rainwater and sewage, in particular to a method for quickly constructing a rainwater and sewage inspection well on an existing road.
Background
The urban rainwater and sewage pipeline mainly plays a role in collecting, transmitting and discharging rainwater and sewage, and has great significance for construction and development of cities and towns. The inspection well is used as an important component of a rain sewage pipeline system and is mainly used for conveniently and regularly inspecting, cleaning and dredging pipelines. The construction quality of the inspection shaft directly affects the comfort of road use.
At present, the construction method of urban road rain and sewage pipelines is mainly based on a direct excavation and burying mode, and the traditional methods of rain and sewage inspection wells include two methods: firstly, the construction method is characterized in that the construction method is formed by building bricks, the lower opening is enlarged, the upper opening is narrowed and is horn-shaped, and a large excavation mode is adopted during construction, so that bottom plate, shaft building, closing, well ring and cover installation, well periphery backfilling and pavement construction are carried out from bottom to top; secondly, a cast-in-place concrete well is adopted, and the construction sequence comprises cushion layer construction, bottom plate and well wall reinforcing steel bar binding, template installation, concrete pouring and maintenance, shaft manufacturing, well base and well cover installation, backfill around the well and pavement restoration. The construction period of the two methods is long, uneven settlement is easily generated between the road and the inspection well, the passing safety and comfort are affected, the vehicle jumping phenomenon can be seriously caused, and the traffic is affected by the post-repair treatment.
Disclosure of Invention
In order to solve the technical problem, the invention provides a method for quickly constructing a rainwater and sewage inspection well on the existing road.
The technical points of the invention are as follows:
a method for quickly constructing a rainwater and sewage inspection well on an existing road mainly comprises the following steps:
s1, dragging the pipeline: the method comprises the steps that a positioner used for positioning an inspection well is arranged at the joint of a horizontal directional drill and a drag pipe, the drag pipe is installed at a specified position by starting the horizontal directional drill under the condition that the earth surface is not excavated, the drag pipe is brought into a grouting pipe along with a pipeline during dragging, grouting is carried out in time after dragging is completed, the drag pipe construction process is mature, the phenomenon that the traditional construction method opens the cavity and breaks the belly of a road is avoided, and the workload of earth excavation and transportation is reduced;
s2, positioning of the inspection well: the position to be constructed can be determined by displaying the position through the positioner on the horizontal directional drill, the positioner is arranged at the joint of the horizontal directional drill and the dragging pipe, the construction position is the vertex position of the inspection well, the circle center position of the inspection well to be constructed can be determined through two vertexes, the positioner can more accurately find the specific position of the inspection well to be installed, and inaccurate positioning caused by errors of manual measurement is reduced, so that the construction progress is influenced;
s3, road surface breaking: when it is confirmed through a construction drawing that no telecommunication, cable or pipe trench hidden structures exist at the periphery of the position located by the inspection well, drawing an excavation drawing on the road surface according to the vertex position and the circle center position located in S2, drawing a square which is used for placing an unloading plate and is larger than the peripheral size of the unloading plate by taking the located circle center as the circle center, drawing a circle which is larger than the prefabricated inspection well radius by taking the distance from one vertex to the circle center as the radius by taking the located circle center as the circle center, firstly starting cutting along the drawn circle by a concrete cutting machine with the cutting depth of 10cm, then breaking concrete in the cut circle to the roadbed by using an air compressor at 5-10cm, manually breaking the circle to the roadbed, and mechanically cooperating with the manual work to carry out greater protection on the roadbed;
s4, sinking of the inspection well: the prefabricated inspection well is dug downwards to continue to be dug and sunk through the round broken hole which is broken in the step S3 by using mechanical excavation and manual work, and the sunk well construction has less disturbance on the original road bed;
s5, inspection well bottom sealing: after the inspection well is sunk below the position of the dragging pipe, a bottom plate is installed at the bottom of the inspection well, a cushion layer is arranged on the bottom plate, the heights of the bottom plate and the cushion layer are flush with the bottom of the dragging pipe, and waterproof and strength detection is carried out on the bottom plate and the cushion layer at the bottom of the inspection well;
s6, plugging a gap between the pipeline and the open caisson hole: after the bottom plate and the cushion layer are installed, gap filling and sealing treatment is carried out on the gap between the outer side of the pipeline of the inspection well and the open caisson;
s7, installing an unloading plate and a well seat and a well lid: cutting concrete into the square drawn in the S3, wherein the cutting depth is 10cm, an air compressor breaks the concrete to a position 5-10cm away from a roadbed, the concrete is broken to the position of the roadbed manually, the concrete is broken to a position more than 10cm below the top of an installed inspection well, a C15 concrete cushion is cast to pave the broken plane to the position of the inspection well, an unloading plate is installed, and a prepared finished well seat and a well cover are installed on the unloading plate, so that the bottom surface of the unloading plate is smoother, and the stress borne by the unloading plate is reduced;
s8, restoring the road surface: the well cover and well seat are protected by a mold, concrete required for repairing is prepared by proportioning and stirring, 30% of stones with the maximum size of 0.8cm are added to serve as coarse aggregates, steel nails are inserted into old concrete plates, the prepared concrete is poured into a casting pit and is vibrated compactly in time, after vibration, light is timely smeared and a curing agent is sprayed, when the curing agent is sprayed, the curing agent extends to the position which is larger than 20cm above the old concrete plates, and the pavement restoration quality is guaranteed while the cost of the concrete is saved.
Further, in S1, a locator is arranged at the position of 6-10cm of the mouth of the dragging pipe to ensure that the dragging pipe can extend into the inspection well.
Further, in S3, the length of the drawn circle whose radius is greater than the radius of the manhole is 20cm, the circumference of the square for placing the unloading plate is 30cm greater than the circumference of each unloading plate, and the fault tolerance is increased while the packing layer is reserved.
Further, when the air compressor is broken in S3 and S7, the air compressor is broken from the middle of the drawn graph to the periphery, a baffle is arranged at the position 10cm away from the inner side of the cut position of the graph, and damage to the original road surface is prevented when the road surface is broken.
Further, in S6, a gap between the outer side of the inspection well pipeline and the open caisson is filled by a polyethylene joint strip, and is sealed by 50-30 two-component polysulfide sealant, wherein the ratio of the component A to the component B in the two-component polysulfide sealant is 10: 0.8-1.2.
Furthermore, the inspection well and the unloading plate can be customized in a factory in advance, the unloading plate is a cube with the side length of 300cm, the height of 35cm and the chamfer angle of 20cm, the occupied area of a road surface during construction can be reduced by prefabricating the inspection well and the unloading plate, and traffic paralysis under the traditional construction mode can not be caused.
Furthermore, when the inspection well is prefabricated, the bottom end of the inspection well is provided with a semicircular concave hole used for being placed on the dragging pipe, the inspection well is sunk to the concave hole to clamp the dragging pipe, a bottom plate and a cushion layer are arranged at the bottom of the inspection well, so that the open caisson engineering is smoother, and unnecessary steps of moving the inspection well and the dragging pipe after the open caisson are reduced.
Compared with the prior art, the invention has the beneficial effects that:
firstly, the construction pipeline is dragged by adopting the horizontal directional drill, the grouting pipe is brought along with the pipeline during dragging, grouting is carried out in time after dragging is finished, the phenomenon that the cavity around the pipeline collapses to cause road subsidence is avoided, the method is safer, large-area damage to the road surface cannot be caused, traffic paralysis caused by construction is avoided, the positioning device is arranged at the inlet of the dragging pipe, the construction sinking point is quickly determined through the positioning device, and the construction efficiency is improved.
Secondly, the concrete inspection well and the unloading plate can be prefabricated in a factory as required, the material and labor cost is reduced, the site is not occupied, the resources can be intensified, the road surface can be restored after the inspection well and the unloading plate are installed, the traffic is released, the overall construction period is greatly shortened, the influence on the environment is reduced to the maximum extent, and meanwhile, the social and economic benefits are greatly improved.
Thirdly, after the grooving is finished, the concrete is broken from the center of the excavation line by using an air compressor and is gradually broken towards two sides, and the baffle plates are arranged at the excavation line, so that the concrete outside the excavation line is not damaged in the breaking process, concrete fragments are timely collected after the concrete is broken, and are timely cleaned and transported to a specified waste soil yard for stacking, and the environmental pollution is reduced.
Drawings
FIG. 1 is a front view of a schematic illustration of an installation result in an embodiment of the invention;
FIG. 2 is a top view of a schematic illustration of an installation result in an embodiment of the invention;
FIG. 3 is a schematic diagram of step S2 in an embodiment of the present invention;
fig. 4 is a top view of a schematic diagram of step S2 in an embodiment of the present invention.
The device comprises a well cover 1, a well cover 2, an unloading plate 3, an inspection well 4, a joint filling plate 5, a dragging pipe 6, a bottom plate 7, 50-30 double-component polysulfide sealant 8, a concrete pad 9, a cushion layer 10, a positioner 11, a horizontal directional drill 12, a first positioning point 13, a second positioning point 14, a circle 15, a circle center 16 and a square.
Detailed Description
Example (b):
as shown in figure 1, a method for rapidly constructing a rainwater and sewage inspection well 3 on an existing road and solving the problem of uneven settlement mainly comprises the following steps:
s1, dragging the pipeline: a locator 10 used for locating the inspection well 3 is arranged at the joint of the horizontal directional drill 11 and the dragging pipe 5, then the horizontal directional drill 11 is started to install the dragging pipe 5 at a specified position under the condition that the earth surface is not excavated, the dragging pipe is brought into a grouting pipe along with a pipeline during dragging, and grouting is carried out in time after dragging is finished;
s2, positioning of the inspection well 3: the position to be constructed can be determined by displaying the position through a positioner on the horizontal directional drill 11, the positioner is arranged at the connecting position of the horizontal directional drill 11 and the drag pipe 5, the first positioning point 12 is recorded through the positioner, the second positioning point 13 is determined according to the diameter of the required inspection well 3, and the center 15 position of the inspection well 3 to be constructed can be determined by the midpoint of the connecting line of the two positioning points;
s3, road surface breaking: when the construction drawing confirms that telecommunication, cable and pipe trench hidden structures do not exist at the periphery of the position located by the inspection well 3, drawing an excavation drawing on the road surface according to the position of a circle center 15 located in S2, drawing a square 16 which is used for placing the unloading plate 2 and is larger than the peripheral size of the unloading plate 2 by taking the located circle center 15 as the circle center, drawing a circle 14 which is larger than the prefabricated inspection well 3 by 20cm in radius by taking the located circle center 15 as the circle center, firstly cutting along the drawn circle 14 by a concrete cutting machine with the cutting depth of 10cm, then breaking the concrete in the cut circle 14 to 8cm of a roadbed by using an air compressor, and manually breaking the concrete to the roadbed;
s4, sinking the inspection well 3: using mechanical excavation and manual work to enable the prefabricated inspection well 3 to continue excavation and sinking downwards through the round 14 broken hole in the step S3;
s5, bottom sealing of the inspection well 3: after the inspection well 3 is sunk below the position of the dragging pipe 5, a bottom plate 6 is installed at the bottom of the inspection well 3, a cushion layer 9 is arranged on the bottom plate 6, the heights of the bottom plate 6 and the cushion layer 9 are flush with the bottom of the dragging pipe 5, and waterproof and strength detection is carried out on the bottom plate 6 and the cushion layer 9 at the bottom of the inspection well 3;
s6, plugging a gap between the pipeline and the open caisson hole: after the bottom plate 6 and the cushion layer 9 are installed, gap filling and sealing treatment is carried out on the gap between the outer side of the pipeline of the inspection well 3 and the open caisson;
s7, installing an unloading plate 2 and a well seat and well cover 1: cutting concrete into the square 16 drawn in the step S3, wherein the cutting depth is 10cm, the concrete is broken by an air compressor to 8cm of a roadbed, the concrete is broken by manpower to the roadbed, the concrete is broken by manpower to 10cm of the top of the installed inspection well 3, then a concrete cushion 8 of C15 is cast, the broken plane is paved to the opening of the inspection well 3, an unloading plate 2 is installed, and a prepared finished well seat and a well cover 1 are installed on the unloading plate 2;
s8, restoring the road surface: the well lid 1 well seat is protected by a mould, the concrete required for repairing is prepared by proportioning and stirring, 30 percent of stones with the maximum size of 0.8cm are added as coarse aggregates, steel nails are inserted into old concrete plates, the prepared concrete is poured into a casting pit and is vibrated tightly in time, after vibration, light is timely smeared and curing agent is sprayed, and when the curing agent is sprayed, the concrete extends to the position of 25cm above the old concrete plates.
S1, installing the positioner 10 at the position 8cm away from the orifice of the drag pipe 5.
In S3, the radius of the circle 14 is drawn to be 20cm longer than the length of the radius of the manhole 3, and the circumference of the square 16 for placing the unloading plate 2 is 30cm larger than the circumference of each unloading plate 2.
And when the air compressor is broken in the S3 and S7, the air compressor is broken from the middle of the drawn graph to the periphery, and a baffle is arranged at the 10cm position of the inner side of the cut part of the graph.
In S6, the gap between the outer side of the pipeline of the inspection well 3 and the open caisson is filled by a polyethylene joint sealing plate 4, and is sealed by a 50 x 30 two-component polysulfide sealant 7.
The inspection well 3 and the unloading plate 2 can be customized in a factory in advance, and the unloading plate 2 is a cube with the side length of 300cm, the height of 35cm and the chamfer angle of 20 cm.
The positioner 10 used in this embodiment S1 is available from hangzhou mingzhou wisdom spatio-temporal technology ltd; the inspection well 3 is made of concrete by pouring.
Claims (6)
1. A method for quickly constructing a rainwater and sewage inspection well on an existing road is characterized by mainly comprising the following steps:
s1, dragging the pipeline: a locator used for locating the inspection well (3) is arranged at the joint of the horizontal directional drill (11) and the dragging pipe (5), then the horizontal directional drill (11) is started to install the dragging pipe (5) at a specified position under the condition that the earth surface is not excavated, the dragging pipe is brought into a grouting pipe along with a pipeline during dragging, and grouting is carried out in time after dragging is completed;
s2, positioning of the inspection well (3): the position to be constructed can be determined by displaying the position through a positioner on the horizontal directional drill (11), the positioner is arranged at the connecting position of the horizontal directional drill (11) and the drag pipe (5), a first positioning point (12) is recorded through the positioner, a second positioning point (13) is determined according to the diameter of the required inspection well (3), and the center point of the connecting line of the two positioning points can determine the position of the circle center (15) of the inspection well (3) to be constructed;
s3, road surface breaking: when the situation that telecommunication, cables and pipe trench hidden structures do not exist at the periphery of the position located by the inspection well (3) is confirmed through a construction drawing, an excavation drawing is drawn on the road surface according to the position of a circle center (15) located in S2, a square (16) which is used for placing the unloading plate (2) and is larger than the peripheral size of the unloading plate (2) is drawn by taking the located circle center (15) as the circle center, a circle (14) which is larger than the radius of the prefabricated inspection well (3) by 20cm is drawn by taking the located circle center (15) as the circle center, cutting is started along the drawn circle (14) by a concrete cutting machine, the cutting depth is 10cm, concrete in the cut circle (14) is broken to a roadbed by an air compressor, and the concrete is broken to the roadbed by manpower;
s4, sinking the inspection well (3): using mechanical excavation and manual work to enable the prefabricated inspection well (3) to continue excavation and sinking downwards through the round (14) broken hole in the step S3;
s5, bottom sealing of the inspection well (3): after the inspection well (3) is sunk below the position of the dragging pipe (5), a bottom plate (6) is installed at the bottom of the inspection well (3), a cushion layer (9) is arranged on the bottom plate (6), the heights of the bottom plate (6) and the cushion layer (9) are flush with the bottom of the dragging pipe (5), and the bottom plate (6) and the cushion layer (9) at the bottom of the inspection well (3) are subjected to waterproof and strength detection;
s6, plugging a gap between the pipeline and the open caisson hole: after the bottom plate (6) and the cushion layer (9) are installed, gap filling and sealing treatment are carried out on the gap between the outer side of the pipeline of the inspection well (3) and the open caisson hole;
s7, installing an unloading plate (2) and a well seat and well cover (1): cutting concrete into the square (16) drawn in the S3, wherein the cutting depth is 10cm, an air compressor breaks the concrete to a position 5-10cm away from a roadbed, the concrete is broken to the position of the roadbed manually, the concrete is broken to a position more than 10cm below the top of the installed inspection well (3) manually, then a concrete cushion (8) of C15 is cast, the broken plane is paved to the position of the inspection well (3), an unloading plate (2) is installed, and a prepared finished well seat and a well lid (1) are installed on the unloading plate (2);
s8, restoring the road surface: the well base of the well lid (1) is protected by a mould, the concrete required for repairing is prepared by proportioning and stirring, 30 percent of stones with the maximum size of 0.8cm are added as coarse aggregates, steel nails are inserted into old concrete plates, the prepared concrete is poured into a casting pit and is vibrated tightly in time, after vibration, light is timely smeared and curing agent is sprayed, and when the curing agent is sprayed, the concrete extends to the position which is more than 20cm above the old concrete plates.
2. A method for rapidly constructing a rainwater manhole on an existing road according to claim 1, wherein a locator is installed at a 6-10cm position of the opening of the dragging pipe (5) in S1.
3. A method for rapidly constructing a rainwater manhole on an existing road according to claim 1, wherein in S3, the radius of the circle (14) drawn is greater than the radius of the manhole (3) by 20cm, and the circumference of the square (16) for placing the unloading plate (2) is greater than the circumference of each unloading plate (2) by 30 cm.
4. A method for rapidly constructing a rainwater and sewage inspection well on an existing road according to claim 1, wherein the air compressor is broken at S3 and S7 from the middle to the periphery of the drawn figure (14), and a baffle is arranged 10cm inside the cut part of the figure.
5. A method for rapidly constructing a rainwater and sewage inspection well on an existing road according to claim 1, wherein the gap between the outer side of the pipeline of the inspection well (3) and the open caisson hole in S6 is filled with a polyethylene joint strip (4) and is sealed with 50 x 30 two-component polysulfide sealant (7).
6. A method for rapidly constructing a rainwater and sewage inspection well on an existing road according to claim 1, wherein the inspection well (3) and the unloading plate (2) can be customized in the factory in advance, and the unloading plate (2) is a cube with the side length of 300cm, the height of 35cm and the chamfer angle of 20 cm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010966811.2A CN112282022A (en) | 2020-09-15 | 2020-09-15 | Method for quickly constructing rain sewage inspection well on existing road |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010966811.2A CN112282022A (en) | 2020-09-15 | 2020-09-15 | Method for quickly constructing rain sewage inspection well on existing road |
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| CN202010966811.2A Pending CN112282022A (en) | 2020-09-15 | 2020-09-15 | Method for quickly constructing rain sewage inspection well on existing road |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113565188A (en) * | 2021-05-13 | 2021-10-29 | 河南世港电气设备有限公司 | Rain and sewage backflow prevention inspection well |
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| CN110847325A (en) * | 2019-12-12 | 2020-02-28 | 南通华新建工集团有限公司 | Construction process of sewage pipe network in villages and towns by horizontal directional drilling |
| CN111411680A (en) * | 2020-02-26 | 2020-07-14 | 郑州大学 | Pipe well blowout repair method |
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2020
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| JPH10168917A (en) * | 1996-12-09 | 1998-06-23 | Kansai Electric Power Co Inc:The | Caisson prefabricated manhole and execution method thereof |
| CN102644295A (en) * | 2012-04-28 | 2012-08-22 | 江苏阳湖建设项目管理有限公司 | Construction method for preventing peripheral and local sedimentation of road surface inspection well |
| CN105241452A (en) * | 2015-08-28 | 2016-01-13 | 上海电力设计院有限公司 | Trenchless calandria three-dimensional track optimization measurement method based on positioning induction device |
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| CN110219359A (en) * | 2019-07-16 | 2019-09-10 | 湖南博世科环保科技有限公司 | A kind of Submersed type inspection well and its construction method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113565188A (en) * | 2021-05-13 | 2021-10-29 | 河南世港电气设备有限公司 | Rain and sewage backflow prevention inspection well |
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