CN112195975A - Novel inspection well reinforcing method - Google Patents
Novel inspection well reinforcing method Download PDFInfo
- Publication number
- CN112195975A CN112195975A CN202010992647.2A CN202010992647A CN112195975A CN 112195975 A CN112195975 A CN 112195975A CN 202010992647 A CN202010992647 A CN 202010992647A CN 112195975 A CN112195975 A CN 112195975A
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- Prior art keywords
- well
- inspection well
- around
- concrete
- manhole
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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
- E02D29/128—Repairs of manhole shafts
Abstract
The invention discloses a novel inspection well reinforcing method, which comprises the steps of prefabricating a reinforced concrete well mouth, cutting a road around a well, breaking an original brick well mouth, hoisting the prefabricated reinforced concrete well mouth, removing a crack pouring concrete bulge and sundries, and filling cement stabilized macadam on the broken road surface around the inspection well with cement; the reinforced concrete wellhead is prefabricated and comprises a reinforcing plate and a manhole cover seat, wherein the reinforcing plate is of a double-layer reinforced net structure, so that the road surface fragmentation around the manhole edge is reduced; the thickness of the upper layer structure of the asphalt concrete is ensured by integrally paving and rolling the surrounding pavement of the inspection well and the adjacent pavement. When the asphalt mixture is paved, the paver is not influenced by the asphalt mixture at the position of the inspection well, and the asphalt mixture and the pavement with different widths are integrally paved at one time and integrally rolled and molded with the pavement, so that the pavement integrity is good; through gusset plate and well lid seat integrated into one piece or integrated design, reduce the risk that the well lid sinks.
Description
Technical Field
The invention belongs to the technical field of asphalt pavements around inspection wells in roadways, and particularly relates to a novel inspection well reinforcing method.
Background
Inspection wells are vertical wells built at regular intervals on the underground pipeline. The device is mainly used for overhauling pipelines, removing sludge and connecting pipelines in different directions and different heights. Along with the rapid development of urban road construction in China, maintenance and repair work of urban roads is increasingly important, and the landscape, driving safety and environment brightening of the urban roads also directly reflect the appearance of urban construction. The phenomena of damage, displacement and settlement of manhole covers of inspection wells, pavement cracking, subsidence, damage, cuddling and the like of peripheral roads are commonly diseases on the roads, which are discovered by daily inspection records of the asphalt concrete pavement twice a day in the morning and at night by road inspectors in our area. After the road engineering is completed, the asphalt concrete road surface surrounds the edge of the manhole cover within the range of 10-50 cm, annular cracks occur, the number of cracks is increased along with the time, the width is gradually widened, and then road diseases such as net cracks and subsidence of the road surface and instability, damage and slight subsidence of the manhole cover are formed.
Disclosure of Invention
The invention aims to provide a novel inspection well reinforcing method to solve the problems of settlement of a well cover of a road inspection well and general quality problems of surrounding roads.
In order to achieve the purpose, the invention discloses a novel inspection well reinforcing method, which comprises the following steps:
the method comprises the steps of prefabricating a reinforced concrete wellhead, wherein the reinforced concrete wellhead comprises a reinforcing plate and a manhole cover seat, and the reinforcing plate is of a double-layer reinforced net structure;
secondly, cutting roads around the inspection well, and breaking road structures around the inspection well within a distance range of 50-70 cm from the inspection well mouth by using an electric pneumatic pick;
thirdly, breaking the original inspection well mouth, breaking 50cm of brick-built closing-up at the upper part of the original inspection well, leveling the broken section with cement mortar, and drilling a reserved hole;
and fourthly, hoisting the reinforced concrete well mouth to the original well mouth, inserting the reserved steel bars into the reserved port, filling and leveling the joint with 1:2 waterproof mortar, and fixing the original well cover to the reinforced concrete well mouth by using expansion bolts.
Fifthly, removing the protruding parts and sundries of the grouted concrete, then dipping water with a brush to clean the surface residues and floating dust, and brushing cement paste;
and sixthly, breaking the road surface around the inspection well, filling cement stabilized macadam into the road surface, and integrally paving and rolling the adjacent road surface.
Furthermore, the prefabricated reinforced concrete wellhead comprises four steps of steel bar binding, template manufacturing, concrete pouring and concrete curing.
Further, the reinforcing plate and the well cover seat are integrally formed.
Furthermore, an iron supporting structure is arranged in the middle of the double-layer steel bar net structure.
Furthermore, the method also comprises the step of arranging a filling layer between the shaft and the base layer after cutting the road around the well, wherein the width of the filling layer is 15cm-30cm, and the filling layer is made of C15 cement concrete.
Further, the template is a 1cm-2cm thick wood board, and a rubber strip is filled at the seam of the template.
Furthermore, four foundation bolts are arranged in the reinforced concrete well, and the bolt grade of each foundation bolt is M20.
Further, after the road structure around the manhole is broken by an electric air pick within a range of 50cm-70cm away from the manhole mouth, removing moisture and air of surrounding soil.
Further, the air compressor and the tamper are used for removing moisture and air from the soil.
Compared with the prior art, the invention discloses a novel inspection well reinforcing method, which comprises the steps of prefabricating a reinforced concrete well head, wherein the reinforced concrete well head comprises a reinforcing plate and a well cover seat, and the reinforcing plate is of a double-layer reinforced net structure, so that the road surface fragmentation around the well edge is reduced; cutting roads around the inspection well, breaking the road structure in the range of 50-70 cm away from the inspection well opening at the periphery of the inspection well by using an electric pneumatic pick, then breaking the original inspection well opening, breaking 50cm of brick closing up at the upper part of the original inspection well, leveling the broken section by using cement mortar, and drilling a reserved hole; the influence of the previous non-rigid road on the stability of the inspection well is reduced; the thickness of the upper layer structure of the asphalt concrete is ensured by integrally paving and rolling the surrounding pavement of the inspection well and the adjacent pavement. When the asphalt mixture is paved, the paver is not influenced by the asphalt mixture at the position of the inspection well, and the asphalt mixture and the pavement with different widths are integrally paved at one time and integrally rolled and molded with the pavement, so that the pavement integrity is good; the risk of sinking the well lid is reduced by integrally forming or integrally designing the reinforcing plate and the well lid seat; the inspection well is reinforced better by removing moisture and air from the soil.
Drawings
FIG. 1 is a flow chart of the method of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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.
Example 1:
referring to fig. 1, the novel inspection well reinforcing method provided by the present invention includes the following steps:
1. prefabricated reinforced concrete well head
(1) Binding of reinforcing steel bars
And (5) binding a reinforcing mesh of the wellhead. When the reinforcing steel bars are hooked at 90 degrees, the hooks are towards the inside of the concrete.
When the prefabricated reinforced concrete well head adopts the double-layer reinforcing mesh, the space between two layers of reinforcing steel bars should be provided with the supporting iron (hook) for fixing the reinforcing steel bars.
When the steel bars are bound, the verticality is controlled by a suspension wire, and the space between the main bars is strictly controlled.
In order to ensure the correct position of the steel bar, a horizontal bar or a stirrup is tied outside the vertical stressed bar, the vertical stressed bar and the horizontal bar are subjected to spot welding, and a plumb bob is used for correction when spot welding is carried out for fixation.
The embedded parts are reserved, the positions, the number and the method of the embedded parts are detailed in an installation construction drawing, and qualified welders are selected for welding without damaging structural steel bars.
(2) Template fabrication
The form requires the use of a wood board having a thickness of 1cm or more to prevent deformation due to concrete side pressure and other loads caused by construction work. The length allowable deviation of the outline dimension of the template is-1-0 mm, the width allowable deviation is-0.8-0 mm, and the rib height allowable deviation is-0.5 mm.
The template and the accessories thereof are required to be manufactured on the die carrier, the blanking size is required to be accurate, the template is straight, the corner is smooth, the joint is smooth, the position of the connecting hole is accurate, necessary measures are taken to reduce deformation, and in order to avoid slurry leakage, the joint of the template is filled with rubber strips, double faced adhesive tapes and other elastic materials for stopping water.
Four anchor bolts are arranged in the reinforced concrete well, and the bolt grade of the anchor bolts is M20.
(3) Pouring concrete
And after the template is qualified, pouring concrete. The vibrating adopts a phi 50 flexible shaft inserted vibrator to vibrate, when vibrating in layers, a vibrating head is inserted into the concrete of the lower layer by 5cm, and the vibrating time of each position is determined by the time when the concrete surface does not obviously sink any more, no bubble appears and the slurry begins to spread.
(4) Concrete curing
The concrete curing is carried out within 8-12 hours after the pouring is finished, a covering watering method is generally adopted, the surface of the concrete is kept wet frequently, the curing time is not less than 14 days, and the curing time is prolonged to be more than 28 days in dry and hot climates.
2. Cutting well peripheral road
And the distance from the inspection well mouth is 50cm, the electric air pick is used for breaking the road structure around the inspection well, the edge is prevented from being damaged during breaking, the impact on the inspection well ring is avoided, and the damage to the whole structure of the inspection well is prevented. The breaking depth is about 70cm away from the road surface, and the pit wall needs to be vertically flat. The manhole cover and the manhole ring of the inspection well are taken out, and the well mouth is covered by a circular rubber plate (the diameter is about 75cm) to prevent impurities from falling into the well mouth.
And arranging a filling layer between the shaft and the base layer, wherein the width of the filling layer is 15cm-30cm, and the filling layer is made of C15 cement concrete.
3. Abolishing original brick well head
And (3) breaking 50cm of the upper part of the original inspection well, closing the opening, leveling the broken section by using 1:2 cement mortar, and drilling a reserved hole.
4. Hoisting prefabricated wellhead
And hoisting the prefabricated well mouth on the original well mouth by using a crane, inserting the reserved steel bar into the reserved opening, filling and leveling the joint by using 1:2 waterproof mortar, and fixing the original well lid on the prefabricated well mouth by using an expansion bolt.
5. Plastering surface
Removing the convex part and impurities of the crack pouring concrete, then dipping water with a brush to clean the surface residues and floating dust, and brushing cement paste. Then, using 1:2, plastering the inside and the outside of the well mouth by using the waterproof mortar, and plastering the thick part in layers, wherein the thickness of each time is preferably 5-7 mm.
6. Restore the original pavement structure
And filling cement stabilized macadam around the inspection well, wherein the thickness of each layer is not more than 30cm, and tamping in layers. The height is flush with the prefabricated well head. And the whole pavement around the inspection well and the adjacent pavement are paved and rolled to ensure the thickness of the upper layer structure of the asphalt concrete. When the asphalt mixture is spread, the spreader can be free from the influence of the asphalt mixture at the inspection well position, and the spreader and the full-width pavement are integrally spread at one time and integrally rolled and formed with the pavement, so that the asphalt mixture has good pavement integrity.
Example 2
On the basis of the embodiment 1, after a road around the inspection well is cut, an electric air pick is used for breaking the road structure within the range of 50-70 cm away from the inspection well opening, the road structure around the inspection well can be extracted and tamped by using an external air compressor and a tamping machine, so that the purpose of removing moisture and air of the surrounding soil is achieved, the stability of the soil around the inspection well is strengthened, and the inspection well is prevented from sinking or collapsing under pressure.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Claims (9)
1. A novel inspection well reinforcing method is characterized by comprising the following steps:
the method comprises the steps of prefabricating a reinforced concrete wellhead, wherein the reinforced concrete wellhead comprises a reinforcing plate and a manhole cover seat, and the reinforcing plate is of a double-layer reinforced net structure;
secondly, cutting roads around the inspection well, and breaking road structures around the inspection well within a distance range of 50-70 cm from the inspection well mouth by using an electric pneumatic pick;
thirdly, breaking the original inspection well mouth, breaking 50cm of brick-built closing-up at the upper part of the original inspection well, leveling the broken section with cement mortar, and drilling a reserved hole;
fourthly, hoisting the reinforced concrete well mouth to the original well mouth, inserting the reserved steel bars into the reserved port, filling and leveling the joint with 1:2 waterproof mortar, and fixing the original well lid to the reinforced concrete well mouth by using expansion bolts;
fifthly, removing the protruding parts and sundries of the grouted concrete, then dipping water with a brush to clean surface residues and floating dust, and brushing cement paste;
and sixthly, breaking the road surface around the inspection well, filling cement stabilized macadam into the road surface, and integrally paving and rolling the adjacent road surface.
2. The novel inspection well reinforcing method as claimed in claim 1, wherein the prefabricated reinforced concrete well mouth comprises four steps of steel bar binding, template making, concrete pouring and concrete curing.
3. The novel manhole reinforcing method according to claim 1, wherein the reinforcing plate and the manhole cover base are integrally formed.
4. The novel inspection well reinforcing method according to claim 1, wherein a support iron structure is arranged in the middle of the double-layer steel bar mesh structure.
5. The novel inspection well reinforcing method as claimed in claim 1, further comprising the step of arranging a filling layer between the shaft and the base layer after cutting the road around the inspection well, wherein the width of the filling layer is 15cm-30cm, and the filling layer is made of C15 cement concrete.
6. The novel inspection well reinforcing method as claimed in claim 2, wherein the form is a 1cm-2cm thick wooden board, and a rubber strip is filled at the joint of the form.
7. The novel inspection well reinforcing method according to claim 1, wherein four anchor bolts are arranged in the reinforced concrete well, and the bolt grade of the anchor bolts is M20.
8. The method as claimed in claim 1, wherein the removing of the moisture and air from the soil around the manhole after the electric pick breaks the road structure around the manhole within a range of 50cm to 70cm from the manhole mouth in the road around the cutting manhole.
9. The novel manhole reinforcing method according to claim 8, wherein moisture and air of soil are removed by using an air compressor and a tamper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010992647.2A CN112195975A (en) | 2020-09-21 | 2020-09-21 | Novel inspection well reinforcing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010992647.2A CN112195975A (en) | 2020-09-21 | 2020-09-21 | Novel inspection well reinforcing method |
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| Publication Number | Publication Date |
|---|---|
| CN112195975A true CN112195975A (en) | 2021-01-08 |
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| CN202010992647.2A Pending CN112195975A (en) | 2020-09-21 | 2020-09-21 | Novel inspection well reinforcing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232591A (en) * | 2021-12-31 | 2022-03-25 | 核工业北京地质研究院 | Wellhead foundation reinforcement treatment method for high-temperature geothermal well |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2592901A1 (en) * | 1986-01-13 | 1987-07-17 | Bamat | Method for laying a cover frame for a manhole |
| CN207582513U (en) * | 2017-11-03 | 2018-07-06 | 石晶 | A kind of walling crib for being used to repair inspection shaft on town road |
| CN207987964U (en) * | 2017-12-13 | 2018-10-19 | 淄博市规划设计研究院 | A kind of reinforcing inspection shaft |
-
2020
- 2020-09-21 CN CN202010992647.2A patent/CN112195975A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2592901A1 (en) * | 1986-01-13 | 1987-07-17 | Bamat | Method for laying a cover frame for a manhole |
| CN207582513U (en) * | 2017-11-03 | 2018-07-06 | 石晶 | A kind of walling crib for being used to repair inspection shaft on town road |
| CN207987964U (en) * | 2017-12-13 | 2018-10-19 | 淄博市规划设计研究院 | A kind of reinforcing inspection shaft |
Non-Patent Citations (1)
| Title |
|---|
| ZHENGSHUMIAN上传: "检查井加固维修方案", 《原创力文档HTTPS://MAX.BOOK118.COM/HTML/2018/0927/7041133004001151.SHTM》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114232591A (en) * | 2021-12-31 | 2022-03-25 | 核工业北京地质研究院 | Wellhead foundation reinforcement treatment method for high-temperature geothermal well |
| CN114232591B (en) * | 2021-12-31 | 2023-08-15 | 核工业北京地质研究院 | Wellhead foundation reinforcement treatment method for high-temperature geothermal well |
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