CN213836748U - Large-size concrete prefabricated open caisson - Google Patents
Large-size concrete prefabricated open caisson Download PDFInfo
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- CN213836748U CN213836748U CN202022198033.5U CN202022198033U CN213836748U CN 213836748 U CN213836748 U CN 213836748U CN 202022198033 U CN202022198033 U CN 202022198033U CN 213836748 U CN213836748 U CN 213836748U
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Abstract
A large-size concrete prefabricated open caisson is characterized by comprising a segment unit and a bolt; the number of the segment units is multiple, and the segment units are connected into a well section through the bolts; the well section comprises a bottom section, a standard section and a well head section; the inner diameter of the open caisson is 6-10 meters; bolt holes are formed in the edge part of the inner side wall of the duct piece unit; the bolts sequentially penetrate through the bolt holes of two adjacent segment units to fixedly connect the two adjacent segment units into a whole; and the duct piece unit is provided with a positioning groove and/or a sealing groove. A large-size concrete prefabricated open caisson can shorten the construction period of manufacturing the open caisson in site construction, reduce the manufacturing and transportation cost, and has the characteristics of improving the production efficiency and the product quality and shortening the construction time.
Description
Technical Field
The utility model belongs to the technical field of prefabricated open caisson technique and specifically relates to a prefabricated open caisson of jumbo size concrete is related to.
Background
The concrete wells currently available on the market mainly comprise the following types: cast-in-place and prefabricated. The construction period of the ordinary cast-in-place circular well with the diameter phi of 1000mm is generally 2-3 days, and the construction period has great influence on the whole construction period progress. The novel concrete well can avoid the defects of the traditional concrete well, and has obvious advantages in the aspects of construction period, structural strength, rapid assembly, influence of professional techniques of construction personnel and the like.
The prefabricated open caisson structure adopted by the construction site is mainly of a round drawer type structure, namely, the well is mainly round and is formed by stacking prefabricated rings layer by layer. The advantage of this structure is mainly: the round shaft can bear the lateral pressure of the peripheral soil body and the vertical pressure of a well chamber without reinforcing steel bars or less reinforcing steel bars under most conditions, and is beneficial to manufacturing of moulds and production of assembled products.
However, when the size of the precast concrete well is too large, the transport cost is high, even the precast concrete well cannot be transported, and the precast concrete well can only be constructed in a construction site masonry mode. The open caisson is a well cylindrical structure, and is a foundation for bridge abutment or other structures by digging soil in the well, overcoming the frictional resistance of the segment unit by means of the self gravity, sinking to a designed elevation, sealing the bottom by concrete and filling the well hole. The device is generally used for constructing a retaining device in foundation pits of large-scale piers, sewage pump stations, large-scale equipment foundations, civil air defense shelters, shield assembly wells, underground driveways and station hydraulic foundations.
Compared with a precast concrete well, the main problems of the on-site well construction are as follows: the duct piece unit manufactured on site is easy to leak and pollute the soil environment; the on-site construction period is long, the wet operation workload is large, the maintenance time is long, and the requirements of shortening the construction period, civilized construction and quick release of urban roads are not facilitated; the work efficiency of on-site manufacture is low, and the construction can not be carried out in rainy days, so that the construction progress is influenced.
Disclosure of Invention
The utility model aims at solving the above problem, provide a jumbo size concrete prefabricated open caisson that can improve production efficiency, improve product quality, shorten the engineering time.
A large-size concrete prefabricated open caisson is characterized by comprising a segment unit and a bolt; the number of the segment units is multiple, and the segment units are connected into a well section through the bolts; the well section comprises a bottom section, a standard section and a well head section; the inner diameter of the open caisson is 6-10 meters;
bolt holes are formed in the edge part of the inner side wall of the duct piece unit; the bolts sequentially penetrate through the bolt holes of two adjacent segment units to fixedly connect the two adjacent segment units into a whole;
and the duct piece unit is provided with a positioning groove and/or a sealing groove.
The well section is a circular ring-shaped well section.
The height of the single segment unit is 2-3 meters, and the thickness of the single segment unit is 30-80 centimeters.
Bolt holes are formed in the first side wall, the second side wall, the first end face and the second end face of each standard segment duct piece unit.
Bolt holes are formed in the lower end of the wellhead section pipe sheet unit, the first side wall and the second side wall.
Preferably, the first side wall and the second side wall are provided with sealing strip grooves; the bolt hole is arranged in the first side wall and the second side wall; the sealing strip groove is arranged close to the outside on the first side wall and the second side wall. The first side wall and the second side wall are left and right side surfaces in fig. 2 and 5.
Preferably, the first side wall is provided with a first positioning groove; the second side wall is provided with a first positioning boss.
Preferably, a sealing ring groove is arranged close to the first end face; and a sealing ring groove is arranged at the position of the standard segment corresponding to the second end surface of the wellhead segment pipe sheet unit by the side.
Preferably, the sealing device further comprises a sealing ring and a sealing strip; the sealing ring is arranged in the sealing ring groove; the sealing strip is arranged in the sealing strip groove.
Preferably, the first end face is provided with a bolt hole; a second positioning groove is formed in the first end face; the bolt hole is arranged in the second positioning groove; bolt holes are formed in the second end faces of the standard segment and the wellhead segment pipe sheet unit; a second positioning boss is arranged at the position, corresponding to the second positioning groove, of the second end face; the bolt hole is arranged on the second positioning boss.
Preferably, the top, the first side wall and the right side wall of the segment unit of the bottom segment are provided with bolt holes; a sinking edge angle is arranged at the bottom of the bottom segment; and a reserved through hole is arranged above the sinking edge angle.
Preferably, the prefabricated open caisson is of a reinforced concrete structure.
Main innovation and beneficial effect of the application proposal
(1) When the size of a product is overlarge during the production and transportation of a common prefabricated open caisson, the production and transportation can not be performed normally. The concrete well is formed by the pipe piece units in a subdivided mode, and the pipe piece units can be produced in a serialized and industrialized mode. The limit of a production field, a transportation space and the like on the size of the prefabricated open caisson is reduced.
(2) The bolt holes are formed in the inner side wall of the segment unit, penetrate through the first side wall and the second side wall of the segment unit, and the plurality of segment units are connected to form a well section. The well section comprises a bottom section, a standard section and a well head section. And the bottom segment, the standard segment and the wellhead segment are connected and fixed with each other through the bolt holes on the first end surface and the second end surface of the segment unit by bolts.
(3) The bolt position setting has feasibility, and bolted connection can be dismantled. When the prefabricated open caisson is used, the installation method is simple, and the construction difficulty is low.
(4) The bottom segment, the first end face of the standard segment pipe piece unit, the standard segment and the second end face of the well head segment are provided with a second positioning groove and a second positioning boss, so that when the construction height is increased, the standard segment and the well head segment are installed in an overlapped mode above the well head segment, the sealing ring groove is arranged, and a sealing washer is placed for water prevention and seepage prevention.
(5) And due to the use of the sealing ring and the sealing strip, the prefabricated open caisson can adapt to a complex working environment.
(6) Arranging a reserved through hole for a conventional through hole for manual operation; avoid later stage actual operation to need other trompil, destroy open caisson integrality.
In conclusion, the large-size concrete prefabricated open caisson has the characteristics of improving the production efficiency and the product quality and shortening the construction time. The construction period of manufacturing the open caisson by site construction is shortened, and the transportation cost of manufacturing the prefabricated open caisson is reduced. The precast concrete well products produced in series and in factories have the advantages of improving the production efficiency and the product quality, shortening the construction time, saving energy, preventing pollution and the like.
In addition to the objects, features and advantages described above, other objects, features and advantages of the present invention are also provided. The present invention will be described in further detail below with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a top view of a large-sized concrete precast open caisson provided by the present invention.
Fig. 2 is a front view of an inner side wall of a single segment unit (bottom section) of a large-sized concrete precast caisson provided by the present invention.
Fig. 3 is a schematic structural view of a positioning groove on the side wall of a single segment unit (bottom segment) of a large-size concrete prefabricated open caisson provided by the invention.
Fig. 4 is a schematic structural view of a single segment unit (standard segment) side wall positioning groove-free structure of a large-size concrete precast open caisson provided by the invention.
Fig. 5 is a schematic view of a single segment unit (standard segment) non-sinking blade angle front structure of a large-size concrete prefabricated open caisson provided by the invention.
Fig. 6 is an overall schematic view of a large-sized concrete prefabricated open caisson provided by the invention.
The reference numbers in the figures denote: 1. a bottom segment; 2. a standard segment; 3. a wellhead section; 4. bolt holes; 5. a first side wall; 6. a second side wall; 7. sealing the strip groove; 8. a first positioning groove; 9. a first positioning boss; 10. a first end face; 11. a second end face; 12. a seal ring groove; 13. a second positioning groove; 14. a second positioning boss; 15. sinking the edge angle; 16. and reserving a through hole.
This invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as providing a full and complete disclosure and set forth fully to those skilled in the art, and the scope of the present invention is defined by the claims. In the drawings, the size and relative sizes of various devices may be exaggerated for clarity. The terms first, second and the like in the description and in the claims and the drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged where appropriate. Furthermore, the terms "comprising," "having," and any variations thereof, are intended to cover non-exclusive inclusions.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in fig. 1 to 6, the large-size concrete precast open caisson is characterized by comprising a segment unit and a bolt; the segment unit is a plurality of, and a plurality of segment units pass through bolted connection is the well section.
The well section comprises a bottom section 1, a standard section 2 and a well head section 3; the well section is a circular ring-shaped well section; the inner diameter of the open caisson is 6-10 meters;
the edge part of the inner side wall of the segment unit is provided with a bolt hole 4; the bolts sequentially penetrate through the bolt holes 4 of the two adjacent segment units to fixedly connect the two adjacent segment units into a whole;
and the duct piece unit is provided with a positioning groove and/or a sealing strip groove.
The standard segment is provided with bolt holes 4 on the first 5, second 6, first 10 and second 11 side walls.
All be provided with bolt hole 4 on the lower extreme of well head section 3, first lateral wall 5 and the second lateral wall 6.
In one embodiment, as shown in fig. 1, an open caisson with an inner diameter of 8 meters is manufactured, wherein the single well section is formed by connecting six segment units, the height of each segment unit is 2-3 meters, and the thickness of each segment unit is 30-80 centimeters; the open caisson includes: the open caisson comprises a bottom section 1, a plurality of standard sections 2 and a wellhead section 3, wherein the open caisson height is realized by increasing the number of the standard sections according to actual setting. The inner diameter of the open caisson is set according to the actual situation and is realized by increasing the number of the pipe piece units of a single well section.
In an embodiment, the individual segment units have a height in the range of 2-3 meters and a thickness in the range of 30-80 centimeters, as desired for production. And producing the segment units with corresponding specifications according to production requirements.
Preferably, the first side wall 5 and the second side wall 6 are provided with a sealing strip groove 7; the bolt holes 4 are arranged in the first side wall 5 and the second side wall 6; the sealing strip groove 7 is arranged close to the outside of the first side wall 5 and the second side wall 6. The first side wall 5 and the second side wall 6 are left and right side surfaces in fig. 2 and 5.
Preferably, the first side wall 5 is provided with a first positioning groove 8; the second side wall 6 is provided with a first positioning boss 9.
Preferably, the segment unit further comprises a first end face 10 and a second end face 11; a sealing ring groove 12 is arranged close to the first end face 10; and a sealing ring groove 12 is arranged close to the edge of the standard segment 2 corresponding to the second end surface 11 of the segment unit of the wellhead segment 3.
Preferably, the sealing device further comprises a sealing ring and a sealing strip; the sealing ring is arranged in the sealing ring groove 12; the sealing strip is arranged in the sealing strip groove 7.
Preferably, the first end face 10 is provided with a bolt hole 4; a second positioning groove 13 is formed in the first end face 10; the bolt hole 4 is arranged in the second positioning groove 13; bolt holes 4 are formed in the second end faces 11 of the pipe piece units of the standard segment 2 and the wellhead segment 3; a second positioning boss 14 is arranged at the position, corresponding to the second positioning groove 13, of the second end surface 11; the bolt hole 4 is provided on the second positioning boss 14. The first end surface 10 and the second end surface 11 are the top end surface and the bottom end surface in fig. 2 and 5.
Preferably, bolt holes 4 are arranged on the top, the first side wall 5 and the second side wall 6 of the segment unit of the bottom segment 1; a sinking edge angle 15 is arranged at the bottom of the bottom segment 1; a reserved through hole 16 is arranged above the sunken edge angle 15.
In one embodiment, the thickness of the segment unit is 30-80 cm, the sunken edge angle 15 is 30-60 cm in height, the width of the bottom surface is 10-15 cm, and the chamfer surface is an arc surface or a planar edge angle.
Preferably, the prefabricated open caisson is of a reinforced concrete structure.
When the size of a product is overlarge during the production and transportation of a common prefabricated open caisson, the production and transportation can not be performed normally. The prefabricated concrete well is formed by the subdivision of the segment units and can be produced in series and in factory. The limitation of production site, transportation space and the like on the size of the prefabricated open caisson is reduced.
The bolt holes are formed in the inner side wall of the segment unit and penetrate through the first side wall 5 and the second side wall 6 of the segment unit, and the plurality of segment units are connected to form a well section. The well section comprises a bottom section 1, a standard section 2 and a well head section 3. After the bolt holes 4 of the first end face 10 and the second end face 11 of the segment unit are connected through bolts, the bottom segment 1, the standard segment 2 and the wellhead segment 3 are connected and fixed with each other.
The bolt position setting has feasibility, and bolted connection can be dismantled. When the prefabricated open caisson is used, the installation method is simple, the prefabricated open caisson can be disassembled, and the construction difficulty is low.
The bottom segment 1 and the first end face 10 of the segment unit of the standard segment 2, the standard segment 2 and the second end face 11 of the wellhead section 3 are provided with a second positioning groove 13 and a second positioning boss 14, so that when the construction height is increased, the standard segment 2 and the wellhead section 3 are installed above the base segment in an overlapped mode, and the standard segment 2 can be multiple. And the sealing ring groove 12 is arranged for placing a sealing ring for water prevention and seepage prevention.
The first positioning groove 8 and the first positioning boss 9 are arranged and used for positioning the first side wall 5 and the second side wall 6 when being connected with each other, so that the positioning of the duct piece unit and the installation of the bolt are facilitated.
And due to the use of the sealing ring and the sealing strip, the prefabricated open caisson can adapt to a complex working environment.
In conclusion, the large-size concrete prefabricated open caisson has the characteristics of improving the production efficiency and the product quality and shortening the construction time. The construction period of manufacturing the open caisson by site construction is shortened, and the transportation cost of manufacturing the prefabricated open caisson is reduced. The precast concrete well products produced in series and in factories have the advantages of improving the production efficiency and the product quality, shortening the construction time, saving energy, preventing pollution and the like.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A large-size concrete prefabricated open caisson is characterized by comprising a segment unit and a bolt; the number of the segment units is multiple, and the segment units are connected into a well section through the bolts; the well section comprises a bottom section, a standard section and a well head section; the inner diameter of the open caisson is 6-10 meters;
bolt holes are formed in the edge part of the inner side wall of the duct piece unit; the bolts sequentially penetrate through the bolt holes of two adjacent segment units to fixedly connect the two adjacent segment units into a whole;
and the duct piece unit is provided with a positioning groove and/or a sealing groove.
2. The heavy gauge concrete precast open caisson of claim 1, wherein said well section is a circular ring-shaped well section.
3. The heavy gauge concrete precast open caisson of claim 1, wherein the segment unit has a height of 2-3 m and a thickness of 30-80 cm.
4. The heavy gauge concrete precast open caisson of claim 1, wherein the segment unit first and second side walls are provided with sealing strip grooves; the bolt holes are arranged at the edge parts of the first side wall and the second side wall; the sealing strip groove is arranged on the first side wall and the second side wall close to the outside; a sealing ring groove is formed in the side close to the first end face of the segment unit; a sealing ring groove is arranged at the position of the standard segment corresponding to the second end surface of the wellhead segment pipe sheet unit; a sealing ring is arranged in the sealing ring groove; and sealing strips are arranged in the sealing strip grooves.
5. The large-size concrete precast open caisson according to claim 1, wherein said segment unit first side wall is provided with a first positioning groove; and the second side wall of the segment unit is provided with a first positioning boss.
6. The large-size concrete precast open caisson according to claim 1, wherein bolt holes are formed on the first end surface of the segment unit; a second positioning groove is formed in the first end face; the bolt hole is arranged in the second positioning groove; bolt holes are formed in the second end faces of the standard segment and the wellhead segment pipe sheet unit; a second positioning boss is arranged at the position, corresponding to the second positioning groove, of the second end face; the bolt hole is arranged on the second positioning boss.
7. The large-size concrete precast open caisson according to claim 6, wherein the top first end face, the first side wall and the right side wall of the segment unit of the bottom section are provided with bolt holes; a sinking edge angle is arranged at the bottom of the bottom segment; and a reserved through hole is arranged above the sinking edge angle.
8. The large-sized concrete prefabricated open caisson according to claim 1, wherein said prefabricated open caisson is a reinforced concrete structure.
9. The large-sized concrete precast open caisson according to claim 1, wherein said segment units are six; the inner diameter of the open caisson is 6 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022198033.5U CN213836748U (en) | 2020-09-28 | 2020-09-28 | Large-size concrete prefabricated open caisson |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022198033.5U CN213836748U (en) | 2020-09-28 | 2020-09-28 | Large-size concrete prefabricated open caisson |
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| Publication Number | Publication Date |
|---|---|
| CN213836748U true CN213836748U (en) | 2021-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022198033.5U Active CN213836748U (en) | 2020-09-28 | 2020-09-28 | Large-size concrete prefabricated open caisson |
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| CN (1) | CN213836748U (en) |
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- 2020-09-28 CN CN202022198033.5U patent/CN213836748U/en active Active
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