CN117846029A - Cast-in-place concrete inspection well construction process - Google Patents
Cast-in-place concrete inspection well construction process Download PDFInfo
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- CN117846029A CN117846029A CN202410028915.7A CN202410028915A CN117846029A CN 117846029 A CN117846029 A CN 117846029A CN 202410028915 A CN202410028915 A CN 202410028915A CN 117846029 A CN117846029 A CN 117846029A
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- 238000010276 construction Methods 0.000 title claims abstract description 31
- 238000007689 inspection Methods 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 27
- 238000013461 design Methods 0.000 claims abstract description 4
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 239000004568 cement Substances 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 2
- 239000010865 sewage Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000001050 lubricating effect Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Abstract
The invention relates to the field of sewer construction, in particular to a cast-in-place concrete inspection well construction process, which comprises the following steps: s100, assembling a first-section internal mold; s200, hoisting the first-section internal mold into a foundation pit; plugging an opening on the top surface of the first-section internal mold; s300, supporting an outer mold in the foundation pit, and pouring concrete between the first-section inner mold and the outer mold; s400, assembling a secondary section internal mold; s500, hoisting the secondary section internal mold into a foundation pit, and splicing the secondary section internal mold and the first section internal mold; plugging an opening on the top surface of the secondary section internal mold; s600, pouring concrete between the secondary section inner die and the outer die; steps S400 to S600 are circulated until the design requirement is met; s700, lifting the secondary section inner die and the primary section inner die in the foundation pit out of the foundation pit, and curing the inspection well in the foundation pit. The invention has the effects of improving the manual investment in the construction process of the inspection well and reducing the operation construction risk.
Description
Technical Field
The invention relates to the field of sewer construction, in particular to a cast-in-place concrete inspection well construction process.
Background
The inspection well is arranged for the maintenance of power supply, water drainage, pollution discharge, communication, cable television, gas pipes, street lamp lines and the like of urban underground infrastructure, and is convenient to install. Is generally arranged at the junction of pipelines, at the turning position, at the position of pipe diameter or gradient change and at certain intervals on the straight pipe section, so that the underground infrastructure can be conveniently checked regularly.
The drainage engineering is an indispensable ring of municipal road construction in towns, and sewage pipelines are deeply buried underground, so that the construction of sewage inspection wells is often a difficult point of the drainage engineering, and particularly for industrial areas with larger pollution discharge requirements. The sewage engineering in the industrial area has the characteristic of large pipe diameter, so that the pipe diameter of an inspection well is often larger than 1200mm, and a concrete cast-in-situ structure with the length and the width of more than 1.9 multiplied by 1.9m is required to be adopted on the premise of ensuring the construction quality and tightness requirements. But the sewage engineering of the industrial area also has the characteristics of deep soil covering and large inspection well depth, so that the inspection well needs to be cast in sections in the casting process.
Firstly, a support platform is erected underground, an inner die is installed, an outer die is arranged on the outer side of the inner die, and pouring of an inspection well is carried out through the inner die and the outer die. After one section of inspection well is poured, the support platform and the internal mold are removed, erection is carried out again, and pouring of a second section of inspection well is carried out, so that the operation is repeated until pouring of all sections of inspection wells is completed.
But when carrying out the erection of underground support platform and centre form, not only need consume a large amount of manual works, and support platform dismouting process is comparatively loaded down with trivial details, and this limited underground space leads to the dismouting of support platform to receive more restriction and hindrance, need throw into more manual works and bring more operation construction risks.
Disclosure of Invention
The invention provides a cast-in-place concrete inspection well construction process, which aims to reduce the labor investment in the inspection well construction process and reduce the operation construction risk.
The invention provides a cast-in-place concrete inspection well construction process, which adopts the following technical scheme:
a cast-in-place concrete inspection well construction process comprises the following steps:
s100, assembling a first-section internal mold;
s200, hoisting the assembled head section internal mold into a foundation pit, and positioning the head section internal mold in the foundation pit;
sealing the opening on the top surface of the head section internal mold;
s300, supporting an outer mold in the foundation pit, and pouring concrete between the first-section inner mold and the outer mold after the outer mold is supported;
s400, assembling a secondary section internal mold;
s500, hoisting the spliced secondary section inner die into the foundation pit, and splicing the secondary section inner die and the head section inner die;
sealing the opening on the top surface of the secondary section internal mold;
s600, pouring concrete between the secondary section inner die and the outer die;
the steps S400 to S600 are circulated until the design requirement is met, and pouring of the inspection well is completed;
and S700, lifting the secondary section inner mold and the primary section inner mold in the foundation pit out of the foundation pit according to the sequence from top to bottom, and curing the inspection well in the foundation pit.
In a specific embodiment, the gap between the secondary section internal mold and the primary section internal mold is sealed with cement slurry prior to step S600.
In a specific implementation manner, the head joint inner mold comprises a plurality of groups of first side plates and second side plates, one end of each first side plate is connected with one end of each second side plate to form a connecting part, the first side plates and the second side plates of different groups are connected with each other, and the plurality of groups of first side plates and the second side plates are connected with each other to form a cylinder;
the connecting part is provided with a penetrating hole, and one end of the connecting part is provided with an inserting rod;
the one end that first curb plate kept away from connecting portion is equipped with first connecting plate, the one end that the second curb plate kept away from connecting portion is equipped with the second connecting plate, first connecting plate with the second connecting plate passes through the connecting piece concatenation.
In a specific embodiment, an extension plate is arranged between the first side plate and the second side plate of the other group, two opposite ends of the extension plate are provided with abutting plates, and the abutting plates are connected with the first side plate and the second side plate through the connecting piece.
In a specific embodiment, the connecting part is provided with hooks on the side facing away from the outer mould.
In a specific implementation manner, the connecting piece is a connecting rod, a first connecting hole for the connecting rod to penetrate is formed in the first connecting plate, and a second connecting hole for the connecting rod to penetrate is formed in the second connecting plate.
In a specific embodiment, the end of the first side plate remote from the same set of the second side plates is provided with a reinforcing plate.
In a specific implementation manner, a first back edge is arranged on one surface of the first side plate, which faces away from the outer die, and a second back edge is arranged on one surface of the second side plate, which faces away from the outer die.
In a specific implementation manner, the first back edge and the second back edge are provided with splicing holes.
In a specific implementation manner, the structure of the secondary section internal mold is the same as that of the head section internal mold, and a plunger rod is further arranged on one side of the secondary section internal mold facing the head section internal mold.
In summary, the present invention includes at least one of the following beneficial technical effects:
1. the first section internal mold is spliced in advance outside the foundation pit, the foundation pit is placed in a hoisting mode, only a small amount of workers for positioning the first section internal mold are required to be arranged in the foundation pit, the splicing of the second section internal mold and the first section internal mold are identical, the labor cost of the requirements in the inspection well pouring process is greatly reduced, and the construction risk is effectively reduced.
2. In the pouring process of the inspection well, the first-section inner die and the second-section inner die are spliced, the dismantling process is omitted, and after the pouring of the inspection well is completed, the inner dismantling process in the pouring process of the inspection well is gradually removed, so that the construction risk is reduced, and meanwhile, the construction efficiency is improved.
Drawings
Fig. 1 is a schematic diagram of the structure of the secondary section internal mold and the primary section internal mold after being assembled.
Fig. 2 is a schematic diagram showing the structure of the first side plate and the second side plate.
Fig. 3 is a schematic diagram showing the structure of the plunger.
Reference numerals illustrate: 1. a first side plate; 2. a second side plate; 3. a connection part; 4. penetrating the jack; 5. a first back ridge; 6. a second back ridge; 7. a first connection plate; 8. a second connecting plate; 9. a connecting rod; 10. a reinforcing plate; 11. a hook; 12. assembling holes; 13. and a plunger.
Detailed Description
The invention is described in further detail below with reference to fig. 1-3.
Referring to fig. 1 and 2, a head joint inner mold includes a first side plate 1 and a second side plate 2, the first side plate 1 and the second side plate 2 are provided with four groups, one end of the first side plate 1 and one end of the second side plate 2 are fixedly connected, and a connecting portion 3 is formed. The four groups of first side plates 1 and second side plates 2 are mutually spliced, and one end of one group of first side plates 1 far away from the connecting part 3 is spliced with one end of the other group of second side plates 2 far away from the connecting part 3 to form a cylinder with a square section. It is easy to understand that the quantity of the first side plates 1 and the second side plates 2 can be set according to actual needs, and the included angle between the first side plates 1 and the second side plates 2 can be adjusted according to actual needs, so that the first side plates 1 and the second side plates 2 can be enclosed into other polygonal cylinders with square cross sections.
Referring to fig. 1 and 2, for convenience of description, a face of one set of the first side plate 1 and the second side plate 2 facing away from the other set of the first side plate 1 and the second side plate 2 is defined as a working face. A first back edge 5 is fixed on one surface of the first side plate 1 facing away from the working surface, and a second back edge 6 is fixed on one surface of the second side plate 2 facing away from the working surface. The first side plate 1 and the second side plate 2 are made of PVC materials, and the weight of the first side plate 1 and the second side plate 2 can be effectively reduced by the PVC materials, so that the first side plate 1 is convenient to transport and splice. The first back edge 5 reinforces the first side plate 1, and the second back edge 6 reinforces the second side plate 2, so that the strength of the first side plate 1 and the second side plate 2 lost due to weight reduction is compensated by the first back edge 5 and the second back edge 6. The first section internal mold of the surrounding city of the first side plate 1 and the second side plate 2 is lighter and lighter compared with the traditional wood template and has strength which is not inferior to that of the wood template.
Referring to fig. 1 and 2, a first connecting plate 7 is fixed at one end of the first side plate 1 far away from the connecting portion 3, a plurality of first connecting holes are formed in the first connecting plate 7, a second connecting plate 8 is arranged at one end of the second side plate 2 far away from the second connecting plate 8, and a plurality of second connecting holes communicated with the first connecting holes are formed in the second connecting plate 8. The connecting rod 9 is inserted in the first connecting hole, the connecting rod 9 penetrates through the first connecting hole and the second connecting hole, the connecting rod 9 connects the first connecting plate 7 with the second connecting plate 8, and relative rotation between the first connecting plate 7 and the second connecting plate 8 is blocked by the connecting rod 9, so that the first connecting plate 7 and the second connecting plate 8 are connected stably, namely, the first side plate 1 and the second connecting plate 8 are connected stably.
Referring to fig. 1 and 2, the face of the first back edge 5 deviating from the first side plate 1, and the face of the second back edge 6 deviating from the second side plate 2 are provided with splicing holes 12, diagonal bracing is arranged on the first back edge 5 and the second back edge 6 through the splicing holes 12, and the first side plate 1 and the second side plate 2 are supported through the diagonal bracing, so that the stability of the first side plate 1 and the second side plate 2 is further improved.
Referring to fig. 1 and 2, an extension plate (not shown in the drawings) is disposed between the first side plate 1 and the second side plate 2 of the other group, opposite ends of the extension plate are both fixed with an abutting plate, a plurality of through holes are formed in the abutting plate, and the through holes are both communicated with the first connecting hole and the second connecting hole. One of the butt plates is connected to the first connecting plate 7, and the other butt plate is connected to the second connecting plate 8. The butt joint board passes through connecting rod 9 with first connecting plate 7 and second connecting plate 8 to be connected for first curb plate 1, second curb plate 2 and extension board form a square tube-shape that the cross-sectional area is bigger, conveniently adapt to on a large scale and pour the demand.
Referring to fig. 1 and 2, a hook 11 is fixed on one surface of the connecting portion 3 facing away from the working surface, so that the first side plate 1 and the second side plate 2 are lifted into the foundation pit conveniently through lifting equipment, and the first side plate 1 and the second side plate 2 are assembled conveniently in the foundation pit.
Referring to fig. 1 and 2, both ends of the connecting rod 9 are provided with reinforcing plates 10, the reinforcing plates 10 are fixed on the first side plate 1 and the second side plate 2, the connecting plates are clamped on the side walls of the first side plate 1 and the second side plate 2, so that the connecting rod 9 is not easy to deform under the relative movement of the first side plate 1 and the second side plate 2, and the stability of the connecting rod 9 to the connection support of the first side plate 1 and the second side plate 2 is improved.
The top surface of the connecting part 3 is provided with a through jack 4.
Referring to fig. 3, the invention further discloses a secondary section internal mold, the structure of which is basically the same as that of the first section internal mold, and the description is omitted. The difference is that: the inserted link 13 is fixed on the bottom surface of the connecting part 3, and the inserted link 13 is matched with the insertion hole 4 on the top surface of the connecting part 3 in an inserting way, so that the secondary section internal mold can be accurately positioned on the first section internal mold or the other secondary section internal mold, the secondary section internal mold and the first section internal mold are convenient to position and connect, and the connection efficiency is improved.
The invention also discloses a cast-in-place concrete inspection well construction process which is matched with the first-section internal mold and the second-section internal mold for use, and comprises the following steps:
s100, paving a bottom plate on the bottom surface of the foundation pit, and drawing ink lines on the bottom plate. And (5) assembling the first-section internal mold on the field outside the foundation pit.
S200, lifting the head section inner die into a foundation pit by connecting a sling of lifting equipment with a hook 11 on the head section inner die, and positioning the head section inner die through drawn ink lines. The penetrating hole 4 on the top surface of the connecting part 3 is sealed by adhesive tape and the like. And a release agent is smeared on the working surfaces of the first side plate 1 and the second side plate 2.
S300, an outer mold is supported in the foundation pit, and concrete is poured between the outer mold and the first-section inner mold after the outer mold is supported.
S400, assembling the secondary section internal mold on the ground. The inserted link 13 is smeared with lubricating liquid and sleeved with a rubber water stop ring. After the lubricating liquid is convenient for the inserted rod 13 to be inserted into the penetrating hole 4, the lubricating liquid is separated from the penetrating hole 4, and the rubber water stop ring can seal the gap between the inserted rod 13 and the inner wall of the penetrating hole 4, so that the concrete is prevented from leaking into the penetrating hole 4. And (3) smearing a release agent on the working surface of the secondary section internal mold.
S500, removing the adhesive tape on the insertion hole 4 of the connecting part 3 of the head section internal mold after the concrete is hardened. And lifting the secondary section internal mold into the foundation pit in a lifting manner, so that the inserted rod 13 of the secondary section internal mold is inserted into the insertion hole 4 of the head section internal mold. And plugging the penetrating hole 4 on the top surface of the connecting part 3 of the secondary section internal mold.
And S600, filling cement paste in the gap between the secondary section inner die and the first section inner die, filling cement paste in the gap between the secondary section inner die and the secondary section inner die, and sealing the gap. And pouring concrete between the secondary section inner die and the outer die, and waiting for the concrete to harden. And (3) circulating the steps S400-S600 until the design requirement is met, and completing pouring of the inspection well.
And S700, lifting the secondary section inner die and the primary section inner die in the foundation pit out of the foundation pit according to the sequence from top to bottom, and curing the inspection well in the foundation pit.
The above embodiments are not intended to limit the scope of the present invention, so: all equivalent changes in structure, shape and principle of the invention should be covered in the scope of protection of the invention.
Claims (10)
1. A cast-in-place concrete inspection well construction process is characterized in that: the method comprises the following steps:
s100, assembling a first-section internal mold;
s200, hoisting the assembled head section internal mold into a foundation pit, and positioning the head section internal mold in the foundation pit;
sealing the opening on the top surface of the head section internal mold;
s300, supporting an outer mold in the foundation pit, and pouring concrete between the first-section inner mold and the outer mold after the outer mold is supported;
s400, assembling a secondary section internal mold;
s500, hoisting the spliced secondary section inner die into the foundation pit, and splicing the secondary section inner die and the head section inner die;
sealing the opening on the top surface of the secondary section internal mold;
s600, pouring concrete between the secondary section inner die and the outer die;
the steps S400 to S600 are circulated until the design requirement is met, and pouring of the inspection well is completed;
and S700, lifting the secondary section inner mold and the primary section inner mold in the foundation pit out of the foundation pit according to the sequence from top to bottom, and curing the inspection well in the foundation pit.
2. The cast-in-place concrete manhole construction process according to claim 1, wherein: and (3) sealing a gap between the secondary section inner die and the primary section inner die by adopting cement slurry before the step S600 is carried out.
3. The cast-in-place concrete manhole construction process according to claim 1, wherein: the head section internal mold comprises a plurality of groups of first side plates (1) and second side plates (2), one end of each first side plate (1) is connected with one end of each second side plate (2) to form a connecting part (3), the first side plates (1) and the second side plates (2) of different groups are connected with each other, and a plurality of groups of first side plates (1) and second side plates (2) are connected with each other to form a cylinder;
the connecting part (3) is provided with a penetrating hole (4);
the one end that connecting portion (3) was kept away from to first curb plate (1) is equipped with first connecting plate (7), second curb plate (2) are kept away from the one end of connecting portion (3) is equipped with second connecting plate (8), first connecting plate (7) with second connecting plate (8) splice through the connecting piece.
4. A cast-in-place concrete manhole construction process according to claim 3, wherein: an extension plate is arranged between the first side plate (1) and the second side plate (2) of the other group, opposite ends of the extension plate are provided with abutting plates, and the abutting plates are connected with the first side plate (1) and the second side plate (2) through the connecting pieces.
5. A cast-in-place concrete manhole construction process according to claim 3, wherein: a hook (11) is arranged on one surface of the connecting part (3) away from the outer die.
6. A cast-in-place concrete manhole construction process according to claim 3, wherein: the connecting piece is a connecting rod (9), a first connecting hole for the connecting rod (9) to penetrate is formed in the first connecting plate (7), and a second connecting hole for the connecting rod (9) to penetrate is formed in the second connecting plate (8).
7. The cast-in-place concrete manhole construction process according to claim 6, wherein: one end of the first side plate (1) far away from the second side plate (2) in the same group is provided with a reinforcing plate (10).
8. A cast-in-place concrete manhole construction process according to claim 3, wherein: the novel outer die is characterized in that a first back edge (5) is arranged on one surface of the first side plate (1) deviating from the outer die, and a second back edge (6) is arranged on one surface of the second side plate (2) deviating from the outer die.
9. The cast-in-place concrete manhole construction process of claim 8, wherein: and the first back edge (5) and the second back edge (6) are provided with splicing holes (12).
10. The cast-in-place concrete manhole construction process according to any one of claims 3 to 8, wherein: the structure of the secondary section internal mold is the same as that of the first section internal mold, and one side of the secondary section internal mold facing the first section internal mold is also provided with a plunger rod (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410028915.7A CN117846029A (en) | 2024-01-08 | 2024-01-08 | Cast-in-place concrete inspection well construction process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410028915.7A CN117846029A (en) | 2024-01-08 | 2024-01-08 | Cast-in-place concrete inspection well construction process |
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| Publication Number | Publication Date |
|---|---|
| CN117846029A true CN117846029A (en) | 2024-04-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410028915.7A Pending CN117846029A (en) | 2024-01-08 | 2024-01-08 | Cast-in-place concrete inspection well construction process |
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| CN (1) | CN117846029A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070030477A (en) * | 2005-09-13 | 2007-03-16 | 조용우 | Quadrangle type Manhole mold |
| CN110374322A (en) * | 2019-07-23 | 2019-10-25 | 天津洪晟基业建材有限公司 | A kind of assembled waffle beam plate device |
| CN209555978U (en) * | 2018-12-26 | 2019-10-29 | 郑州市第一建筑工程集团有限公司 | A kind of cast-in-situ steel reinforced concrete manhole shaft shaping combined steel shuttering |
| CN209975580U (en) * | 2017-11-24 | 2020-01-21 | 贵州富仁混凝土构件有限公司 | Prefabricated assembled anticorrosive concrete inspection shaft |
| CN214785903U (en) * | 2021-04-13 | 2021-11-19 | 重庆航天职业技术学院 | Concrete building template for civil engineering |
| CN216839570U (en) * | 2021-12-13 | 2022-06-28 | 中铁建电气化局集团第三工程有限公司 | Detachable prefabricated template of cable shaft |
| CN218713292U (en) * | 2022-09-20 | 2023-03-24 | 阳谷天马建筑材料有限公司 | Prefabricated inspection shaft is pour in drawing of patterns |
-
2024
- 2024-01-08 CN CN202410028915.7A patent/CN117846029A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20070030477A (en) * | 2005-09-13 | 2007-03-16 | 조용우 | Quadrangle type Manhole mold |
| CN209975580U (en) * | 2017-11-24 | 2020-01-21 | 贵州富仁混凝土构件有限公司 | Prefabricated assembled anticorrosive concrete inspection shaft |
| CN209555978U (en) * | 2018-12-26 | 2019-10-29 | 郑州市第一建筑工程集团有限公司 | A kind of cast-in-situ steel reinforced concrete manhole shaft shaping combined steel shuttering |
| CN110374322A (en) * | 2019-07-23 | 2019-10-25 | 天津洪晟基业建材有限公司 | A kind of assembled waffle beam plate device |
| CN214785903U (en) * | 2021-04-13 | 2021-11-19 | 重庆航天职业技术学院 | Concrete building template for civil engineering |
| CN216839570U (en) * | 2021-12-13 | 2022-06-28 | 中铁建电气化局集团第三工程有限公司 | Detachable prefabricated template of cable shaft |
| CN218713292U (en) * | 2022-09-20 | 2023-03-24 | 阳谷天马建筑材料有限公司 | Prefabricated inspection shaft is pour in drawing of patterns |
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