CN111456197A - Double-wall steel sleeve horse riding well and construction method thereof - Google Patents

Double-wall steel sleeve horse riding well and construction method thereof Download PDF

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Publication number
CN111456197A
CN111456197A CN202010392335.8A CN202010392335A CN111456197A CN 111456197 A CN111456197 A CN 111456197A CN 202010392335 A CN202010392335 A CN 202010392335A CN 111456197 A CN111456197 A CN 111456197A
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double
wall
steel
cylinder
steel cylinder
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张�杰
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MCC5 Group Shanghai Corp Ltd
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MCC5 Group Shanghai Corp Ltd
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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/02Manhole shafts or other inspection chambers; Snow-filling openings; accessories
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D15/00Handling building or like materials for hydraulic engineering or foundations
    • E02D15/02Handling of bulk concrete specially for foundation or hydraulic engineering purposes
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12Consolidating by placing solidifying or pore-filling substances in the soil
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/02Manhole shafts or other inspection chambers; Snow-filling openings; accessories
    • E03F5/027The bottom made of prefabricated segments

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Water Supply & Treatment (AREA)
  • Public Health (AREA)
  • Hydrology & Water Resources (AREA)
  • Health & Medical Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • Bulkheads Adapted To Foundation Construction (AREA)

Abstract

The invention discloses a double-wall steel sleeve riding well and a construction method thereof, wherein a double-wall steel cylinder is pressed into a soil body in a static pressure mode and is connected with a steel cylinder welded at the upper part of a steel sleeve of a pipe-jacking pipe joint, then the soil body is reinforced by grouting through a small guide pipe, a steel ladder is welded on the inner cylinder wall of the double-wall steel cylinder, a reinforcement cage is inserted between the double-wall steel cylinders through slurry replacement and micro-expansion concrete is poured into the double-wall steel cylinders, the double-wall steel cylinder and the pipe-jacking pipe joint are in seamless butt joint to form a whole, the riding well adopts a factory prefabrication and field splicing mode, has the characteristics of short construction time, high construction efficiency and high construction quality, can prevent the occurrence of quality defects of uneven settlement of the riding well, water seepage between the pipe joint and the riding well, and the like, and improves the integrity and tightness of. The horse riding well is suitable for arrangement of a pipe-jacking inspection well with the pipe diameter larger than 1500mm, is strong in universality, high in construction speed, high in construction progress quality requirement and good in applicability to busy traffic sections.

Description

Double-wall steel sleeve horse riding well and construction method thereof
Technical Field
The invention belongs to the technical field of pipeline construction, and particularly relates to a double-wall steel sleeve horse riding well and a construction method thereof.
Background
With the continuous advance of urbanization, the transformation of old urban areas is actively proceeding. The arrangement mode of rain sewage pipes in old cities is simple and old, rain sewage flows transversely everywhere in severe weather, and pipe jacking construction becomes one of the most common modes of rain sewage pipe arrangement in old cities due to the characteristics of longitudinal and transverse pipelines, large traffic flow, small construction working surface, more residents around, high construction coordination difficulty and the like in old cities.
The horse riding well, also called an inspection well, is arranged above the pipeline and is used as an accessory structure for daily inspection and patrol of the pipe-jacking pipeline. The existing construction device for the horseshoe well is mainly connected in modes of masonry by masonry, open caisson construction, steel pile casing retaining wall, concrete pouring by an inner supporting template and the like, the integrity and the tightness of the horseshoe well are ensured by adopting a welding mode between the horseshoe well and the steel sleeve section of the pipe jacking pipe joint, the construction period is long, the quality problems of settlement, water seepage and the like are easy to occur, and the tightness is also difficult to ensure.
The patent with application number 2019201847691 discloses a riding well device for pipeline construction, which is a riding well device for pipeline construction, and the bottom end of the riding well device is welded with a butt joint pipe joint to realize the functions of the riding well device through pipe joint butt joint and rapid cement filling.
The patent application with the application number of 2017105464237 discloses a manual excavation horseback riding well and a construction method thereof, and the manual excavation horseback riding well is characterized in that a broken stone cushion layer is laid for drainage through manual hole digging and bricklaying wall supporting, and a reinforced concrete pouring bottom plate achieves functions.
At present, the horse riding well is used as a structural object which is frequently checked and patrolled in the pipe jacking construction of an old urban area, the horse riding well in the prior art comprises the scheme disclosed by the patent application document, and the problems of low construction speed, easy occurrence of quality problems of sedimentation, water seepage and the like and influence on the tightness and the integrity of the horse riding well are all solved, so that a novel horse riding well construction device is necessary to be designed.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the double-wall steel sleeve horse riding well and the construction method thereof are provided, and the problem that the horse riding well in the prior art is prone to sedimentation and water seepage is solved.
The invention adopts the following technical scheme for solving the technical problems:
a double-wall steel sleeve horse riding well comprises a double-wall steel sleeve, a mud jacking pipe, a reinforcement cage, a small guide pipe, a well cover and a steel sleeve; the double-wall steel cylinder comprises an inner cylinder wall and an outer cylinder wall, a grouting pipe and a reinforcement cage are arranged between the inner cylinder wall and the outer cylinder wall, concrete is poured in the grouting pipe and the reinforcement cage, a plurality of small guide pipes are uniformly arranged at equal intervals at the lower part of the outer side of the outer cylinder wall, and one ends of the small guide pipes penetrate through the outer cylinder wall and are connected with the grouting pipe; the upper end of the steel cylinder is connected with the double-wall steel cylinder, and the lower end of the steel cylinder is connected with the steel sleeve of the pipe jacking joint; the well lid covers the upper part of the double-wall steel cylinder.
The upper end face of the steel cylinder is provided with two grooves, the lower ends of the inner and outer cylinder walls of the double-wall steel cylinder are respectively arranged in the grooves, and the inner and outer cylinder walls are aligned with the centers of the grooves.
The lateral wall of every recess all sets up a sensor, and the bottom of recess sets up gasket, rubber seal.
And the inner and outer cylinder walls of the double-wall steel cylinder are provided with sensors corresponding to the groove side wall sensors and used for judging the verticality and position of the connection between the double-wall steel cylinder and the steel cylinder.
The jacking pipe joint steel sleeve is positioned outside the jacking pipe joint and is attached to the jacking pipe joint.
The inner cylinder wall of the double-wall steel cylinder is provided with a steel ladder.
The construction method of the double-wall steel sleeve horse riding well comprises the following steps:
step 1, rolling two steel plates to form two concentric cylinders with different diameters, and connecting and fixing the two cylinders through channel steel to form a double-wall steel cylinder;
step 2, inserting a grouting pipe between the inner cylinder wall and the outer cylinder wall of the double-wall steel cylinder;
step 3, uniformly arranging a plurality of rows of small guide pipes at the lower part of the outer side of the double-wall steel cylinder, wherein one end of each small guide pipe penetrates through the outer cylinder wall of the double-wall steel cylinder and is connected with a grouting pipe;
step 4, manufacturing a steel cylinder according to the diameter of the double-wall steel cylinder, arranging two grooves on the upper end surface of the wall of the steel cylinder according to the positions of the inner cylinder wall and the outer cylinder wall of the double-wall steel cylinder, arranging a sensor on the side wall of each groove, and arranging a gasket and a rubber sealing ring at the bottom of each groove;
step 5, inserting the lower ends of the inner and outer cylinder walls of the double-wall steel cylinder into the two grooves of the steel cylinder and connecting the two grooves into a whole;
step 6, pressing the double-wall steel cylinder and the whole steel cylinder into a top pipe joint steel sleeve through static pressure, and excavating soil to the top of the top pipe joint steel sleeve;
step 7, cutting the steel sleeve of the pipe joint of the jacking pipe according to the size of the steel sleeve, correcting the elevation and the position, and welding the steel sleeve and the steel sleeve of the pipe joint of the jacking pipe together;
step 8, injecting cement slurry into the mud jacking pipe, and reinforcing the soil around the horsewell through the small guide pipe;
step 9, reinforcing, namely placing a reinforcement cage between the two cylinder walls of the double-wall steel cylinder, and placing a lower guide pipe for underwater micro-expansion concrete pouring construction and curing concrete;
and step 10, after concrete curing is finished, chiseling and plastering the concrete, and then placing the well cover.
The specific operation method of step 7 is as follows:
firstly, surface cleaning and lofting positioning are carried out on the ground, then a crane is used for hoisting the assembled double-wall steel cylinder and the whole steel cylinder to carry out static pressure operation, and the position and the verticality of the double-wall steel cylinder and the steel cylinder are adjusted through a sensor.
Before the steel reinforcement cage is placed in, the clearance between the walls of the double-wall steel cylinder is cleaned in a slurry replacement mode, and the steel reinforcement cage is hoisted after the first cleaning and the second cleaning.
The concrete pouring height is at least 0.5 m higher than the designed elevation.
Compared with the prior art, the invention has the following beneficial effects:
1. the traditional horse riding well adopts the modes of soil body reinforcement, steel sheet pile enclosure, brick laying or formwork binding and concrete pouring and the like, has long construction time, saves time by adopting the static pressure double-wall steel cylinder, reduces disturbance to surrounding residents, and simultaneously greatly improves the construction efficiency.
2. According to the invention, the sensors are arranged in the double-wall steel cylinder and the steel disc to realize accurate butt joint quickly, so that the construction quality and speed are ensured.
3. When the pipe joint of the jacking pipe is connected with the shaft, a steel disc (namely the steel cylinder) is adopted, two grooves are carved in the steel disc, and the steel disc is provided with a gasket and a rubber sealing ring, so that the impermeability and the integrity of the riding well are greatly improved.
4. The invention adopts the small guide pipe to reinforce the surrounding soil body, has better effect than the common reinforcing method, can improve the integrity of the steel cylinder and the surrounding soil body, and prevents the deviation of the surrounding soil body caused by uneven pressure.
Drawings
FIG. 1 is a two-dimensional elevation of a horse-riding well of the present invention.
FIG. 2 is a cross-sectional view of a horse-riding well structure of the present invention.
FIG. 3 is a schematic view of the connection of the double-walled steel cylinder and the steel cylinder according to the present invention.
FIG. 4 is a schematic structural diagram of a steel cylinder according to the present invention.
FIG. 5 is a plan view of a horse-riding well structure of the present invention.
FIG. 6 is a side elevational view of the horse-riding well structure of the present invention.
Wherein, the labels in the figure are: 1-a double-walled steel cylinder; 2-a grouting pipe; 3-a reinforcement cage; 4-a small catheter; 5-well cover; 6-climbing steel ladder; 7-jacking pipe joint steel sleeve; 8-a steel cylinder; 9-a sensor; 10-a gasket; 11-rubber sealing ring; 12-grooves.
Detailed Description
The structure and operation of the present invention will be further described with reference to the accompanying drawings.
A double-wall steel sleeve horse riding well comprises a double-wall steel sleeve, a mud jacking pipe, a reinforcement cage, a small guide pipe, a well cover and a steel sleeve; the double-wall steel cylinder comprises an inner cylinder wall and an outer cylinder wall, a grouting pipe and a reinforcement cage are arranged between the inner cylinder wall and the outer cylinder wall, concrete is poured in the grouting pipe and the reinforcement cage, a plurality of small guide pipes are uniformly arranged at equal intervals at the lower part of the outer side of the outer cylinder wall, and one ends of the small guide pipes penetrate through the outer cylinder wall and are connected with the grouting pipe; the upper end of the steel cylinder is connected with the double-wall steel cylinder, and the lower end of the steel cylinder is connected with the steel sleeve of the pipe jacking joint; the well lid covers the upper part of the double-wall steel cylinder.
In one embodiment, as shown in fig. 1 to 6,
a double-wall steel sleeve horse riding well comprises a double-wall steel sleeve 1, a mud jacking pipe 2, a reinforcement cage 3, a small guide pipe 4, a well lid 5 and a steel sleeve 8; the double-wall steel cylinder 1 comprises an inner cylinder wall and an outer cylinder wall, a grouting pipe 2 and a reinforcement cage 3 are arranged between the inner cylinder wall and the outer cylinder wall, concrete is poured in the grouting pipe and the reinforcement cage, a plurality of small guide pipes 4 are uniformly arranged at equal intervals at the lower part of the outer side of the outer cylinder wall, and one ends of the small guide pipes 4 penetrate through the outer cylinder wall and are connected with the grouting pipe 2; the upper end of the steel cylinder 8 is connected with the double-wall steel cylinder 1, and the lower end is connected with the steel sleeve 7 of the pipe joint of the jacking pipe; the well lid 5 covers the upper part of the double-wall steel cylinder 1.
The double-wall steel cylinder 1 is formed by rolling two layers of steel plates with the wall thickness of 8mm and the height of 5m into a cylinder with the diameter of 1.5m and 1.8m, the two layers of steel plates are welded and connected through a No. 16 a channel steel, and phi 8 small pipes 4 are uniformly arranged below the outer side of the double-wall steel cylinder 1 at equal intervals and are welded with the grouting pipe 2; the steel ladder 6 is arranged on the inner side of the double-wall steel cylinder 1 by welding.
Two grooves 12 (10 mm wide and 50mm deep) are arranged on the upper end face of a steel cylinder 8 (the inner diameter is 1.4m, and the outer diameter is 1.9m), the lower ends of the inner cylinder wall and the outer cylinder wall of the double-wall steel cylinder are respectively arranged in the grooves 12, and the centers of the inner cylinder wall and the outer cylinder wall are aligned with the centers of the grooves 12. The side wall of each groove is provided with a sensor 9, and the bottom of each groove is provided with a gasket 10 and a rubber sealing ring 11.
And the inner and outer cylinder walls of the double-wall steel cylinder are provided with sensors corresponding to the groove side wall sensors and used for judging the verticality, socket flatness and position of the connection between the double-wall steel cylinder and the steel cylinder.
The phi 1.8m push pipe joint steel sleeve 7 is positioned outside the push pipe joint and is attached to the push pipe joint, and the lower end of the steel sleeve 8 is connected with the push pipe joint steel sleeve 7 in a welding manner. The upper end of the steel cylinder 8 is connected with the double-wall steel cylinder 1 in a socket joint mode, the center of a sensor 9 embedded in the steel cylinder 8 and the double-wall steel cylinder 1 is aligned, a small guide pipe 4 penetrates through the lower portion of the outer wall of the double-wall steel cylinder 1 and is connected with a grouting pipe 2 penetrating between two steel plates of the double-wall steel cylinder 1, and the steel reinforcement cage 3 is inserted between the two steel plates of the double-wall steel cylinder 1; the steel ladder is welded on the inner side of the double-wall steel cylinder 1.
The small catheter is a familiar nomenclature for such catheters used by those skilled in the art, and is used merely as a term of art, and does not represent an adjective size meaning.
The construction method of the double-wall steel sleeve horse riding well comprises the following steps:
step 1, rolling two steel plates to form two concentric cylinders with different diameters, and connecting and fixing the two cylinders through channel steel to form a double-wall steel cylinder;
step 2, inserting a grouting pipe between the inner cylinder wall and the outer cylinder wall of the double-wall steel cylinder;
step 3, uniformly arranging a plurality of rows of small guide pipes at the lower part of the outer side of the double-wall steel cylinder, wherein one end of each small guide pipe penetrates through the outer cylinder wall of the double-wall steel cylinder and is connected with a grouting pipe;
step 4, manufacturing a steel cylinder according to the diameter of the double-wall steel cylinder, arranging two grooves on the upper end surface of the wall of the steel cylinder according to the positions of the inner cylinder wall and the outer cylinder wall of the double-wall steel cylinder, arranging a sensor on the side wall of each groove, and arranging a gasket and a rubber sealing ring at the bottom of each groove;
step 5, inserting the lower ends of the inner and outer cylinder walls of the double-wall steel cylinder into the two grooves of the steel cylinder and connecting the two grooves into a whole;
step 6, pressing the double-wall steel cylinder and the whole steel cylinder into a top pipe joint steel sleeve through static pressure, and excavating soil to the top of the top pipe joint steel sleeve;
step 7, cutting the steel sleeve of the pipe joint of the jacking pipe according to the size of the steel sleeve, correcting the elevation and the position, and welding the steel sleeve and the steel sleeve of the pipe joint of the jacking pipe together;
step 8, injecting cement slurry into the mud jacking pipe, and reinforcing the soil around the horsewell through the small guide pipe;
step 9, reinforcing, namely placing a reinforcement cage between the two cylinder walls of the double-wall steel cylinder, and placing a lower guide pipe for underwater micro-expansion concrete pouring construction and curing concrete;
and step 10, after concrete curing is finished, chiseling and plastering the concrete, and then placing the well cover.
In a second embodiment of the present invention, a second,
the construction method of the double-wall steel sleeve horse riding well comprises the following steps:
step 1, rolling two steel plates with the wall thickness of 8mm and the height of 5m, enclosing the two steel plates into two concentric cylinders with different diameters, wherein the diameters of the two cylinders are respectively 1.5m and 1.8m, and the two cylinders are connected and fixed through a 16# a channel steel to form a double-wall steel cylinder;
step 2, inserting a grouting pipe between the inner cylinder wall and the outer cylinder wall of the double-wall steel cylinder;
step 3, uniformly arranging a plurality of rows of small guide pipes at the lower part of the outer side of the double-wall steel cylinder, wherein one end of each small guide pipe penetrates through the outer cylinder wall of the double-wall steel cylinder and is connected with a grouting pipe;
step 4, manufacturing a steel cylinder with the inner diameter of 1.4m and the outer diameter of 1.9m according to the diameter of the double-wall steel cylinder, arranging two grooves with the width of 10mm and the depth of 50mm on the upper end surface of the wall of the steel cylinder according to the positions of the inner wall and the outer wall of the double-wall steel cylinder, arranging a sensor on the side wall of each groove for monitoring the position and the verticality of the double-wall steel cylinder and the steel cylinder, and arranging a gasket and a rubber sealing ring at the bottom of each groove to ensure the integral tightness and the water impermeability of the double-wall steel cylinder;
step 5, inserting the lower ends of the inner and outer cylinder walls of the double-wall steel cylinder into the two grooves of the steel cylinder and connecting the two grooves into a whole;
step 6, clearing and lofting the ground, hoisting the assembled double-wall steel cylinder and the whole steel cylinder by using a crane to perform static pressure slow pressure, adjusting the positions and verticality of the double-wall steel cylinder and the steel cylinder according to data of a sensor, pressing the whole double-wall steel cylinder and the steel cylinder into a top pipe joint steel sleeve, cleaning the inner earthwork by using a small excavator, and cleaning the earthwork to the top of the top pipe joint steel sleeve;
step 7, cutting a steel plate at the intersection part of the steel sleeve and the top pipe joint according to the size of the steel sleeve, correcting the elevation and the position, and welding the steel sleeve and the top pipe joint steel sleeve together;
step 8, injecting cement slurry into the mud jacking pipe, and reinforcing the soil around the horsewell through the small guide pipe;
step 9, after reinforcement is completed, cleaning gaps between the walls of the double-wall steel cylinder in a slurry replacement mode, placing a reinforcement cage between the two walls of the double-wall steel cylinder after first cleaning and second cleaning, placing a lower guide pipe for underwater micro-expansion concrete pouring construction, and maintaining concrete, wherein the pouring height of the concrete is at least 0.5 m higher than the designed elevation;
and step 10, after concrete curing is finished, chiseling and plastering the concrete, and then placing the well cover.
The concrete curing time is determined according to the specific field condition and the design index.
In the embodiment, the groove wall of the steel cylinder is provided with the sensors, the inner cylinder wall and the outer cylinder wall of the double-wall steel cylinder are provided with the sensors corresponding to the sensors in a matching manner, and the sensors acquire data through at least two groups of sensors to monitor, adjust and correct the positions, verticality and socket flatness of the double-wall steel cylinder and the steel cylinder.
The key point that needs attention is that the steel reinforcement cage can be inserted only after the soil body is grouted and reinforced.
The invention aims to design a double-wall steel sleeve horse riding well and a construction method thereof, wherein a double-wall steel cylinder is pressed into a soil body in a static pressure mode and is connected with a steel cylinder welded at the upper part of a steel sleeve of a pipe-jacking pipe joint, then the soil body is reinforced by grouting through a small guide pipe, a steel ladder is welded on the inner wall of the double-wall steel cylinder, a reinforcement cage is inserted between the double-wall steel cylinders through slurry replacement, and micro-expansion concrete is poured into the reinforcement cage, so that the seamless butt joint of the double-wall steel cylinder and the pipe-jacking pipe joint is realized to form a whole. The horse riding well is suitable for arrangement of a pipe-jacking inspection well with the pipe diameter larger than 1500mm, is strong in universality, high in construction speed, high in construction progress quality requirement and good in applicability to busy traffic sections.
The invention and its features, aspects and advantages will become more apparent from the detailed description of non-limiting embodiments with reference to the attached drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention.
The above description is of the preferred embodiment of the invention. It is to be understood that the invention is not limited to the particular embodiments described above, in that devices and structures not described in detail are understood to be implemented in a manner common in the art; those skilled in the art can make many possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments to equivalent variations, without departing from the spirit of the invention, using the methods and techniques disclosed above. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention are still within the scope of the protection of the technical solution of the present invention, unless the contents of the technical solution of the present invention are departed.

Claims (10)

1. A double-walled steel sleeve horse riding well is characterized in that: comprises a double-wall steel cylinder, a grouting pipe, a reinforcement cage, a small conduit, a well cover and a steel cylinder; the double-wall steel cylinder comprises an inner cylinder wall and an outer cylinder wall, a grouting pipe and a reinforcement cage are arranged between the inner cylinder wall and the outer cylinder wall, concrete is poured in the grouting pipe and the reinforcement cage, a plurality of small guide pipes are uniformly arranged at equal intervals at the lower part of the outer side of the outer cylinder wall, and one ends of the small guide pipes penetrate through the outer cylinder wall and are connected with the grouting pipe; the upper end of the steel cylinder is connected with the double-wall steel cylinder, and the lower end of the steel cylinder is connected with the steel sleeve of the pipe jacking joint; the well lid covers the upper part of the double-wall steel cylinder.
2. The double-walled steel casing horse-riding well according to claim 1, characterized in that: the upper end face of the steel cylinder is provided with two grooves, the lower ends of the inner and outer cylinder walls of the double-wall steel cylinder are respectively arranged in the grooves, and the inner and outer cylinder walls are aligned with the centers of the grooves.
3. The double-walled steel casing horse-riding well according to claim 2, characterized in that: the lateral wall of every recess all sets up a sensor, and the bottom of recess sets up gasket, rubber seal.
4. The double-walled steel casing horse-riding well according to claim 3, wherein: and the inner and outer cylinder walls of the double-wall steel cylinder are provided with sensors corresponding to the groove side wall sensors and used for judging the verticality and position of the connection between the double-wall steel cylinder and the steel cylinder.
5. The double-walled steel casing horse-riding well according to claim 1, characterized in that: the jacking pipe joint steel sleeve is positioned outside the jacking pipe joint and is attached to the jacking pipe joint.
6. The double-walled steel casing horse-riding well according to claim 1, characterized in that: the inner cylinder wall of the double-wall steel cylinder is provided with a steel ladder.
7. A construction method of a double-walled steel sleeve horse-riding well based on any one of claims 1 to 6, characterized in that: the method comprises the following steps:
step 1, rolling two steel plates to form two concentric cylinders with different diameters, and connecting and fixing the two cylinders through channel steel to form a double-wall steel cylinder;
step 2, inserting a grouting pipe between the inner cylinder wall and the outer cylinder wall of the double-wall steel cylinder;
step 3, uniformly arranging a plurality of rows of small guide pipes at the lower part of the outer side of the double-wall steel cylinder, wherein one end of each small guide pipe penetrates through the outer cylinder wall of the double-wall steel cylinder and is connected with a grouting pipe;
step 4, manufacturing a steel cylinder according to the diameter of the double-wall steel cylinder, arranging two grooves on the upper end surface of the wall of the steel cylinder according to the positions of the inner cylinder wall and the outer cylinder wall of the double-wall steel cylinder, arranging a sensor on the side wall of each groove, and arranging a gasket and a rubber sealing ring at the bottom of each groove;
step 5, inserting the lower ends of the inner and outer cylinder walls of the double-wall steel cylinder into the two grooves of the steel cylinder and connecting the two grooves into a whole;
step 6, pressing the double-wall steel cylinder and the whole steel cylinder into a top pipe joint steel sleeve through static pressure, and excavating soil to the top of the top pipe joint steel sleeve;
step 7, cutting the steel sleeve of the pipe joint of the jacking pipe according to the size of the steel sleeve, correcting the elevation and the position, and welding the steel sleeve and the steel sleeve of the pipe joint of the jacking pipe together;
step 8, injecting cement slurry into the mud jacking pipe, and reinforcing the soil around the horsewell through the small guide pipe;
step 9, reinforcing, namely placing a reinforcement cage between the two cylinder walls of the double-wall steel cylinder, and placing a lower guide pipe for underwater micro-expansion concrete pouring construction and curing concrete;
and step 10, after concrete curing is finished, chiseling and plastering the concrete, and then placing the well cover.
8. The construction method of a double-walled steel sleeve horse riding well according to claim 7, characterized in that: the specific operation method of step 7 is as follows:
firstly, surface cleaning and lofting positioning are carried out on the ground, then a crane is used for hoisting the assembled double-wall steel cylinder and the whole steel cylinder to carry out static pressure operation, and the position and the verticality of the double-wall steel cylinder and the steel cylinder are adjusted through a sensor.
9. The construction method of a double-walled steel sleeve horse riding well according to claim 7, characterized in that: before the steel reinforcement cage is placed in, the clearance between the walls of the double-wall steel cylinder is cleaned in a slurry replacement mode, and the steel reinforcement cage is hoisted after the first cleaning and the second cleaning.
10. The construction method of a double-walled steel sleeve horse riding well according to claim 7, characterized in that: the concrete pouring height is at least 0.5 m higher than the designed elevation.
CN202010392335.8A 2020-05-11 2020-05-11 Double-wall steel sleeve horse riding well and construction method thereof Pending CN111456197A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112267538A (en) * 2020-10-14 2021-01-26 广州市市政集团有限公司 High horse-riding well of security
CN112663766A (en) * 2020-12-04 2021-04-16 上海市政工程设计研究总院(集团)有限公司 Construction method of pipe-jacking horseback riding well
CN112681379A (en) * 2020-12-23 2021-04-20 江苏格睿特管网工程有限公司 Construction method for constructing horseback shaft by 360-degree full-rotation circular shaft pipe shaking machine
CN114439043A (en) * 2021-12-31 2022-05-06 上海市机械施工集团有限公司 Construction device and construction method for horsehole

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112267538A (en) * 2020-10-14 2021-01-26 广州市市政集团有限公司 High horse-riding well of security
CN112663766A (en) * 2020-12-04 2021-04-16 上海市政工程设计研究总院(集团)有限公司 Construction method of pipe-jacking horseback riding well
CN112681379A (en) * 2020-12-23 2021-04-20 江苏格睿特管网工程有限公司 Construction method for constructing horseback shaft by 360-degree full-rotation circular shaft pipe shaking machine
CN114439043A (en) * 2021-12-31 2022-05-06 上海市机械施工集团有限公司 Construction device and construction method for horsehole

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