CN114635442B - Reinforcement cage installation method for improving working performance of open caisson bottom sealing plain concrete - Google Patents
Reinforcement cage installation method for improving working performance of open caisson bottom sealing plain concrete Download PDFInfo
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- CN114635442B CN114635442B CN202210092280.8A CN202210092280A CN114635442B CN 114635442 B CN114635442 B CN 114635442B CN 202210092280 A CN202210092280 A CN 202210092280A CN 114635442 B CN114635442 B CN 114635442B
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- 230000002787 reinforcement Effects 0.000 title claims abstract description 213
- 238000007789 sealing Methods 0.000 title claims abstract description 28
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000009434 installation Methods 0.000 title description 9
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 134
- 239000010959 steel Substances 0.000 claims abstract description 134
- 239000000178 monomer Substances 0.000 claims description 19
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 5
- 238000007667 floating Methods 0.000 abstract description 4
- 238000010276 construction Methods 0.000 description 7
- 239000002689 soil Substances 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000013473 artificial intelligence Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000009933 burial Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003673 groundwater Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D23/00—Caissons; Construction or placing of caissons
- E02D23/16—Jointing caissons to the foundation soil, specially to uneven foundation soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
- E02D31/10—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure
- E02D31/12—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution against soil pressure or hydraulic pressure against upward hydraulic pressure
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/11—Hard structures, e.g. dams, dykes or breakwaters
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- Engineering & Computer Science (AREA)
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- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
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Abstract
The invention discloses a method for installing a reinforcement cage for improving the working performance of open caisson bottom sealing plain concrete, which comprises the following steps: a plurality of reinforcement cage connecting grooves are formed in the circumferential direction of the cutting edge foot of the pipe piece at the bottom of the open caisson; and when the steel reinforcement cage structure is sunk to the bottom of the open caisson, the guide hooks of the steel reinforcement cage connecting grooves are hooked with the steel reinforcement cage structure, and the guide hooks of the steel reinforcement cage connecting grooves are fixed with the steel reinforcement cage structure. The invention has the advantages that: the stress performance of the bottom sealing concrete layer and the connection effect of the bottom sealing concrete layer and the self structure of the open caisson are effectively improved, and the anti-floating and anti-capsizing performances of the open caisson structure are improved.
Description
Technical Field
The invention relates to the technical field of open caisson type underground garage construction, in particular to a reinforcement cage installation method for improving the working performance of open caisson closed plain concrete.
Background
With the popularization of household automobiles, in cities with large population density, parking difficulty becomes a great difficulty for puzzling citizens to go out, however, due to the shortage of urban land, available space is limited, and it is difficult to develop enough ground space facilities on the basis of existing construction to effectively solve the problem of parking difficulty. The open caisson type underground parking garage can furthest reduce and utilize the limited urban ground space, but develops to the urban deep underground space, and meanwhile, by means of an artificial intelligence new technology, the optimal configuration of garage resources can be effectively realized, so that the open caisson type underground parking garage becomes one of main contents of future new construction of cities.
In the design process of the open caisson type vertical shaft structure, according to the standard requirements, in order to meet the larger load effect of the open caisson bottom sealing structure on resisting soil and water pressure under the condition that the open caisson is large in burial depth and the surrounding soil has higher groundwater level, plain concrete with larger thickness needs to be filled below the open caisson bottom plate, however, because the bending tensile strain of the plain concrete is lower, the thickness and the volume of the concrete which needs to be filled are larger, and the action performance of the concrete cannot be fully exerted. In addition, as the bottom sealing plain concrete is connected with the bottom plate of the open caisson and the well wall through the bonding stress of the plain concrete contact surface, the bottom sealing concrete and the open caisson structure cannot be effectively connected into a whole to work together, and the effect of improving the anti-floating and anti-capsizing performance of the self structure of the open caisson by the bottom sealing plain concrete is not obvious. Currently, in the construction process of an open caisson structure, in order to reduce the enclosure cost of a wall soil body in the excavation and tunneling process, an underwater construction method (namely, no drainage construction) is often adopted, and when the excavation depth is large, the construction feasibility of manually installing a bottom sealing steel bar structure underwater is not provided. In order to solve the contradiction between engineering and open caisson, a reinforcement cage installation method for improving the working performance of plain concrete for sealing the bottom of the open caisson is urgently needed.
Disclosure of Invention
According to the defects of the prior art, the invention provides a reinforcement cage installation method for improving the working performance of the bottom sealing plain concrete of the open caisson, wherein the reinforcement cage connecting grooves are formed in the circumferential direction of the cutting edges of the segments at the bottom of the open caisson, the reinforcement cage structure is sunk in the open caisson, and when the reinforcement cage structure is sunk to the bottom of the open caisson, the guide hooks of the reinforcement cage connecting grooves are hooked with the reinforcement cage structure to pour concrete, so that a bottom sealing concrete layer is formed, the stress performance of the bottom sealing concrete layer is effectively improved, the connecting effect of the bottom sealing concrete layer and the open caisson self structure is improved, and the anti-floating and anti-overturning performances of the open caisson structure are improved.
The invention is realized by the following technical scheme:
the method for installing the reinforcement cage for improving the working performance of the open caisson plain concrete is characterized by comprising the following steps of:
arranging a plurality of steel reinforcement cage connecting grooves in the circumferential direction of the cutting edge of the segment at the bottom of the open caisson, wherein each steel reinforcement cage connecting groove comprises a fixed steel bar, a connecting steel bar and a guide hook, the fixed steel bar is arranged at the joint of the segment at the bottom of the open caisson and the cutting edge, one end of each connecting steel bar is connected with the fixed steel bar, the other end of each connecting steel bar extends into the segment at the bottom of the open caisson and is connected with the steel bar in the segment at the bottom of the open caisson, and one end of each guide hook is connected with the fixed steel bar;
the steel reinforcement cage structure sinks in the open caisson, works as the steel reinforcement cage structure sinks to the open caisson bottom, the guide hook of steel reinforcement cage spread groove with steel reinforcement cage structure hook links, and will the guide hook of steel reinforcement cage spread groove with the steel reinforcement cage structure is together fixed, wherein, the steel reinforcement cage structure include circular steel reinforcement cage and install in circular go-between at circular steel reinforcement cage top, circular steel reinforcement cage with connect through the slope reinforcing bar between the circular go-between, circular go-between diameter size is greater than circular steel reinforcement cage diameter size just circular go-between is located circular steel reinforcement cage outside, the guide hook of steel reinforcement cage spread groove with the circular go-between hook of steel reinforcement cage structure links.
The fixed steel bars comprise first fixed steel bars and second fixed steel bars which are connected, and the first fixed steel bars and the second fixed steel bars are respectively arranged on the inner walls of the open caisson bottom duct pieces and the cutting edge feet.
The connecting bars comprise a first connecting bar, a second connecting bar, a third connecting bar and a fourth connecting bar, wherein the first connecting bar, the second connecting bar, the third connecting bar and the fourth connecting bar are respectively arranged at the top ends of the first fixing bars, the connecting parts of the first fixing bars and the second fixing bars, the middle ends of the second fixing bars and the bottom ends of the second fixing bars, and the third connecting bars are respectively connected with the first connecting bars and the second connecting bars in an oblique crossing mode.
The guide hook comprises a first constraint steel bar, a second constraint steel bar and a guide steel bar which are sequentially connected, wherein the first constraint steel bar is horizontally or obliquely arranged, one end of the first constraint steel bar is connected with the bottom end of the second fixed steel bar, the second constraint steel bar is vertically arranged, the guide steel bar is obliquely arranged towards one side far away from the inner wall of the tube sheet at the bottom of the open caisson, and a gap is reserved between the second constraint steel bar and the first fixed steel bar.
The circular reinforcement cage comprises a plurality of layers of circular reinforcement cage monomers arranged along the height direction of the reinforcement cage structure, and each layer of circular reinforcement cage monomers consists of a bottom annular erection rib, a top annular erection rib, a vertical connection rib and a radial connection rib; the top annular erection rib of the circular reinforcement cage monomer at the topmost layer of the circular reinforcement cage is connected with the circular connecting ring through the inclined reinforcement, and one end of the radial connecting rib extends to the circle center of the circular reinforcement cage.
A plurality of fan-shaped grooves are formed on each layer of circular reinforcement cage monomer; when the bottom of the open caisson needs to be expanded, a conical steel reinforcement cage can be placed in each fan-shaped groove of the round steel reinforcement cage monomer; after the reinforcement cage structure is sunk to the bottom of the open caisson, the conical reinforcement cage is outwards moved along the radial direction of the circular reinforcement cage single body, and the conical reinforcement cage is connected with the circular reinforcement cage single body.
And after the reinforcement cage structure is installed, pouring concrete at the reinforcement cage structure to form a bottom sealing concrete layer.
The invention has the advantages that: the stress performance of the bottom sealing concrete layer and the connection effect of the bottom sealing concrete layer and the self structure of the open caisson are effectively improved, and the anti-floating and anti-capsizing performances of the open caisson structure are improved.
Drawings
Fig. 1 is a schematic installation view of a reinforcement cage connecting slot of the present invention;
FIG. 2 is an enlarged view of A in FIG. 1;
fig. 3 is a schematic structural view of the reinforcement cage structure of the present invention;
fig. 4 is a schematic view of the installation of the conical reinforcement cage of the present invention.
Detailed Description
The features of the invention and other related features are described in further detail below by way of example in conjunction with the following figures to facilitate understanding by those skilled in the art:
as shown in fig. 1 to 4, the marks 1 to 23 are respectively indicated as a segment 1, a reinforcement cage connecting groove 2, a structural bottom plate 3, a cutting edge 4, a first fixed reinforcement 5, a second fixed reinforcement 6, a first connecting reinforcement 7, a second connecting reinforcement 8, a third connecting reinforcement 9, a fourth connecting reinforcement 10, a first constraint reinforcement 11, a second constraint reinforcement 12, a guide reinforcement 13, a circular connecting ring 14, an inclined reinforcement 15, a bottom annular bracing 16, a top annular bracing 17, a vertical connecting reinforcement 18, a radial connecting reinforcement 19, a sector groove 20, a conical reinforcement cage 21, a guide groove 22 and a mounting groove 23.
Examples: as shown in fig. 1-4, the embodiment relates to a reinforcement cage installation method for improving the working performance of open caisson bottom sealing plain concrete, which is used for constructing a bottom sealing concrete layer of the open caisson, and comprises the following steps:
1. the open caisson mainly comprises a segment 1, a blade foot 4 is arranged on the segment at the bottom of the open caisson, and a plurality of reinforcement cage connecting grooves 2 are arranged on the circumference direction of the blade foot 4 of the segment at the bottom of the open caisson. Wherein, steel reinforcement cage spread groove 2 includes fixed reinforcement, connecting reinforcement and guide hook, and fixed reinforcement locates the junction of open caisson bottom section of jurisdiction and edge 4, and connecting reinforcement one end is connected with fixed reinforcement, and its other end extends to in the open caisson bottom section of jurisdiction and carries out the ligature with the reinforcing bar in the open caisson bottom section of jurisdiction and be connected, and guide hook one end is connected with fixed reinforcement.
As shown in fig. 1 and 2, the fixed steel bars comprise a first fixed steel bar 5 and a second fixed steel bar 6 which are connected, and the first fixed steel bar 5 and the second fixed steel bar 6 are respectively arranged on the inner walls of the open caisson bottom duct piece and the blade foot 4. The connecting bars include first connecting bar 7, second connecting bar 8, third connecting bar 9 and fourth connecting bar 10, and first connecting bar 7, second connecting bar 8, third connecting bar 9 and fourth connecting bar 10 locate first fixed bar 5 top, the junction of first fixed bar 5 and second fixed bar 6, the bottom of second fixed bar 6 middle-end and second fixed bar 6 respectively to third connecting bar 9 link mutually with first connecting bar 7 and second connecting bar 8 to improve the stability of steel reinforcement cage spread groove 2 respectively. The guide hook comprises a first constraint steel bar 11, a second constraint steel bar 12 and a guide steel bar 13 which are sequentially connected, wherein the first constraint steel bar 11 is horizontally arranged (or obliquely arranged, the inclination direction of the first constraint steel bar 11 is opposite to that of the guide steel bar 13), one end of the first constraint steel bar is connected with the bottom end of the second fixed steel bar 6, the second constraint steel bar 12 is vertically arranged, the top end of the second constraint steel bar 12 is equal to the top end of the first fixed steel bar 5, the guide steel bar 13 is obliquely arranged towards one side far away from the inner wall of a segment at the bottom of the open caisson, and a gap is reserved between the second constraint steel bar 12 and the first fixed steel bar 5.
2. The steel reinforcement cage structure sinks in the open caisson, when the steel reinforcement cage structure sinks to the bottom of the open caisson, the guide hook of the steel reinforcement cage connecting groove 2 is hooked with the steel reinforcement cage structure, and the guide hook of the steel reinforcement cage connecting groove 2 is bound with the steel reinforcement cage structure, so that the steel reinforcement cage structure is positioned and fixed. Wherein, the height of steel reinforcement cage structure is confirmed by the thickness of back cover concrete layer, the steel reinforcement cage structure includes circular steel reinforcement cage and installs in the circular go-between 14 at circular steel reinforcement cage top, be connected through slope reinforcing bar 15 between circular steel reinforcement cage and the circular go-between 14, circular go-between 14 diameter sizes are greater than circular steel reinforcement cage diameter sizes and circular go-between is located circular steel reinforcement cage outside, can guarantee that the direction hook of steel reinforcement cage spread groove 2 links with circular go-between 14 hooks, prevent that the direction hook of steel reinforcement cage spread groove 2 links with circular steel reinforcement cage hooks, and circular go-between 14 and circular steel reinforcement cage diameter are all less than the open caisson internal diameter, the steel reinforcement cage structure of being convenient for sinks. The fixing process of the guide hook of the reinforcement cage connecting groove 2 and the circular connecting ring 14 of the reinforcement cage structure is as follows: when the reinforcement cage structure is sunk, the circular connecting ring 14 gradually enters the guide groove 22 formed by the second constraint reinforcement 12 and the first fixed reinforcement 5 under the guide of the guide reinforcement 13, the guide groove 22 can play a role of limiting and guiding, then the circular connecting ring 14 enters the mounting groove 23 formed by the second constraint reinforcement 12, the second fixed reinforcement 6 and the first constraint reinforcement 11, the mounting groove 23 is used for mounting the circular connecting ring 14, and finally when the reinforcement cage structure is sunk to the bottom of the sunk well, the circular connecting ring 14 is hooked with the first constraint reinforcement 11, and the circular connecting ring 14 is bound with the guide hook of the reinforcement cage connecting groove 2.
As shown in fig. 3 and 4, the circular reinforcement cage comprises a plurality of layers of circular reinforcement cage monomers arranged along the height direction of the reinforcement cage structure, and each layer of circular reinforcement cage monomers consists of a bottom annular standing rib 16, a top annular standing rib 17, a vertical connecting rib 18 and a radial connecting rib 19; the top annular frame 17 of the circular reinforcement cage monomer at the topmost layer of the circular reinforcement cage is connected with the circular connecting ring 14 through inclined reinforcement bars 15, one end of the radial connecting rib 19 extends to the center of the circular reinforcement cage, and a plurality of fan-shaped grooves 20 are formed in each layer of circular reinforcement cage monomer. According to the design height requirement of the back cover concrete layer, the circular reinforcement cage can be formed by overlapping a plurality of layers of circular reinforcement cage monomers along the height direction, namely, the bottom annular erection ribs 16 can be used as the bottom annular erection ribs 16 of the upper layer of circular reinforcement cage monomers, meanwhile, the top annular erection ribs 17 of the adjacent lower layer of circular reinforcement cage monomers are also used, and except that the top annular erection ribs 17 of the top layer of circular reinforcement cage monomers are connected with the circular connecting ring 14 through inclined reinforcement 15, the top annular erection ribs 17 of other layers are not connected with the circular connecting ring 14. In this embodiment, the round reinforcement cage is provided with only one layer of round reinforcement cage monomer. When the open caisson needs to be expanded at the bottom (namely, the radius of the bottom sealing concrete layer exceeds the radius of the open caisson), a conical steel reinforcement cage 21 can be placed in each fan-shaped groove 20 of the round steel reinforcement cage single body (the inner side structure of the conical steel reinforcement cage 21 is small, the outer side structure is large, the size of the conical steel reinforcement cage 21 is smaller than that of the fan-shaped groove 20), after the steel reinforcement cage structure is sunk to the bottom of the open caisson, the conical steel reinforcement cage 21 is moved outwards along the radial direction of the round steel reinforcement cage single body through a mechanical arm (the outward moving length of the conical steel reinforcement cage 21 is determined according to the requirement), and the conical steel reinforcement cage 21 is not completely moved out, and enough structure still remains in the fan-shaped groove 20, so that the conical steel reinforcement cage 21 is conveniently bound and connected with the round steel reinforcement cage single body.
In this embodiment, after the installation of the reinforcement cage structure is completed, concrete is poured at the reinforcement cage structure to form a bottom sealing concrete layer, and then a structural bottom plate 3 is arranged on the upper portion of the bottom sealing concrete layer, and the structural bottom plate 3 is meshed with the duct piece 1.
Although the foregoing embodiments have been described in some detail with reference to the accompanying drawings, it will be appreciated by those skilled in the art that various modifications and changes may be made thereto without departing from the scope of the invention as defined in the appended claims, and thus are not repeated herein.
Claims (7)
1. The method for installing the reinforcement cage for improving the working performance of the open caisson plain concrete is characterized by comprising the following steps of:
arranging a plurality of steel reinforcement cage connecting grooves in the circumferential direction of the cutting edge of the segment at the bottom of the open caisson, wherein each steel reinforcement cage connecting groove comprises a fixed steel bar, a connecting steel bar and a guide hook, the fixed steel bar is arranged at the joint of the segment at the bottom of the open caisson and the cutting edge, one end of each connecting steel bar is connected with the fixed steel bar, the other end of each connecting steel bar extends into the segment at the bottom of the open caisson and is connected with the steel bar in the segment at the bottom of the open caisson, and one end of each guide hook is connected with the fixed steel bar;
the steel reinforcement cage structure sinks in the open caisson, works as the steel reinforcement cage structure sinks to the open caisson bottom, the guide hook of steel reinforcement cage spread groove with steel reinforcement cage structure hook links, and will the guide hook of steel reinforcement cage spread groove with the steel reinforcement cage structure is together fixed, wherein, the steel reinforcement cage structure include circular steel reinforcement cage and install in circular go-between at circular steel reinforcement cage top, circular steel reinforcement cage with connect through the slope reinforcing bar between the circular go-between, circular go-between diameter size is greater than circular steel reinforcement cage diameter size just circular go-between is located circular steel reinforcement cage outside, the guide hook of steel reinforcement cage spread groove with the circular go-between hook of steel reinforcement cage structure links.
2. The method for installing a reinforcement cage for improving the workability of plain concrete for an open caisson according to claim 1, wherein the fixing reinforcement comprises a first fixing reinforcement and a second fixing reinforcement which are connected, and the first fixing reinforcement and the second fixing reinforcement are respectively arranged on the inner walls of the tube sheet at the bottom of the open caisson and the blade foot.
3. The method for installing the reinforcement cage for improving the working performance of the bottom sealing plain concrete of the open caisson according to claim 2, wherein the connecting reinforcement comprises a first connecting reinforcement, a second connecting reinforcement, a third connecting reinforcement and a fourth connecting reinforcement, wherein the first connecting reinforcement, the second connecting reinforcement, the third connecting reinforcement and the fourth connecting reinforcement are respectively arranged at the top ends of the first fixing reinforcement, the connecting parts of the first fixing reinforcement and the second fixing reinforcement, the middle ends of the second fixing reinforcement and the bottom ends of the second fixing reinforcement, and the third connecting reinforcement is respectively connected with the first connecting reinforcement and the second connecting reinforcement in an oblique crossing manner.
4. The method for installing the reinforcement cage for improving the working performance of the bottom sealing plain concrete of the open caisson according to claim 2, wherein the guide hook comprises a first constraint reinforcement, a second constraint reinforcement and a guide reinforcement which are sequentially connected, the first constraint reinforcement is horizontally or obliquely arranged, one end of the first constraint reinforcement is connected with the bottom end of the second fixed reinforcement, the second constraint reinforcement is vertically arranged, the guide reinforcement is obliquely arranged towards one side far away from the inner wall of a segment at the bottom of the open caisson, and a gap is reserved between the second constraint reinforcement and the first fixed reinforcement.
5. The method for installing the steel reinforcement cage for improving the working performance of the open caisson bottom sealing plain concrete according to claim 1, wherein the round steel reinforcement cage comprises a plurality of layers of round steel reinforcement cage monomers arranged along the height direction of the steel reinforcement cage structure, and each layer of round steel reinforcement cage monomers consists of a bottom annular erection rib, a top annular erection rib, a vertical connection rib and a radial connection rib; the top annular erection rib of the circular reinforcement cage monomer at the topmost layer of the circular reinforcement cage is connected with the circular connecting ring through the inclined reinforcement, and one end of the radial connecting rib extends to the circle center of the circular reinforcement cage.
6. The method for installing a steel reinforcement cage for improving the working performance of open caisson bottom sealing plain concrete according to claim 5, wherein a plurality of fan-shaped grooves are formed on each layer of circular steel reinforcement cage monomers; when the bottom of the open caisson needs to be expanded, a conical steel reinforcement cage is placed in each fan-shaped groove of the round steel reinforcement cage monomer; after the reinforcement cage structure is sunk to the bottom of the open caisson, the conical reinforcement cage is outwards moved along the radial direction of the circular reinforcement cage single body, and the conical reinforcement cage is connected with the circular reinforcement cage single body.
7. The method for installing a steel reinforcement cage for improving the working performance of open caisson plain concrete according to claim 1, wherein after the steel reinforcement cage structure is installed, concrete is poured at the steel reinforcement cage structure to form a bottom sealing concrete layer.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210092280.8A CN114635442B (en) | 2022-01-26 | 2022-01-26 | Reinforcement cage installation method for improving working performance of open caisson bottom sealing plain concrete |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210092280.8A CN114635442B (en) | 2022-01-26 | 2022-01-26 | Reinforcement cage installation method for improving working performance of open caisson bottom sealing plain concrete |
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| CN114635442A CN114635442A (en) | 2022-06-17 |
| CN114635442A8 CN114635442A8 (en) | 2022-09-30 |
| CN114635442B true CN114635442B (en) | 2023-05-16 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04297615A (en) * | 1991-03-26 | 1992-10-21 | Taisei Corp | Construction of caisson bottom slab |
| JPH07229151A (en) * | 1994-02-17 | 1995-08-29 | Kajima Corp | Open well cutting edge part cleaning machine |
| CN2276518Y (en) * | 1996-12-12 | 1998-03-18 | 上海宝钢冶金建设公司基建工程处 | Open caisson no-hydraulic sealing bottom device |
| CN105064381A (en) * | 2015-08-06 | 2015-11-18 | 中铁一局集团有限公司 | High-low cutting edge double-wall steel cofferdam reinforced concrete once bottom sealing construction method |
| CN111395375A (en) * | 2020-03-31 | 2020-07-10 | 广东省建筑工程监理有限公司 | Open caisson construction method based on thixotropic slurry drag reduction |
| CN113216234A (en) * | 2021-05-20 | 2021-08-06 | 上海市城市建设设计研究总院（集团）有限公司 | Open caisson bottom sealing and bottom plate connecting device and construction method |
-
2022
- 2022-01-26 CN CN202210092280.8A patent/CN114635442B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04297615A (en) * | 1991-03-26 | 1992-10-21 | Taisei Corp | Construction of caisson bottom slab |
| JPH07229151A (en) * | 1994-02-17 | 1995-08-29 | Kajima Corp | Open well cutting edge part cleaning machine |
| CN2276518Y (en) * | 1996-12-12 | 1998-03-18 | 上海宝钢冶金建设公司基建工程处 | Open caisson no-hydraulic sealing bottom device |
| CN105064381A (en) * | 2015-08-06 | 2015-11-18 | 中铁一局集团有限公司 | High-low cutting edge double-wall steel cofferdam reinforced concrete once bottom sealing construction method |
| CN111395375A (en) * | 2020-03-31 | 2020-07-10 | 广东省建筑工程监理有限公司 | Open caisson construction method based on thixotropic slurry drag reduction |
| CN113216234A (en) * | 2021-05-20 | 2021-08-06 | 上海市城市建设设计研究总院（集团）有限公司 | Open caisson bottom sealing and bottom plate connecting device and construction method |
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| CN114635442A8 (en) | 2022-09-30 |
| CN114635442A (en) | 2022-06-17 |
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