CN108301433A - A kind of composite foundation and construction method of shaft tower - Google Patents
A kind of composite foundation and construction method of shaft tower Download PDFInfo
- Publication number
- CN108301433A CN108301433A CN201810081828.2A CN201810081828A CN108301433A CN 108301433 A CN108301433 A CN 108301433A CN 201810081828 A CN201810081828 A CN 201810081828A CN 108301433 A CN108301433 A CN 108301433A
- Authority
- CN
- China
- Prior art keywords
- shaft tower
- composite foundation
- borehole wall
- rood beam
- open caisson
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/42—Foundations for poles, masts or chimneys
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
- C04B28/02—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements containing hydraulic cements other than calcium sulfates
- C04B28/04—Portland cements
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- Mining & Mineral Resources (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Foundations (AREA)
Abstract
The present invention relates to a kind of composite foundation of shaft tower and construction method, the composite foundation includes beam and open caisson (2), and the beam includes rood beam (3)；The open caisson (2) includes the borehole wall (7) and the shaft bottom (8) positioned at the borehole wall (7) bottom, and the borehole wall (7) is made of vertically the minimum of one crib that vertical section is rectangle；The beam is connected with the borehole wall top of open caisson.Technical solution provided by the invention realizes the advantages of composite foundation construction area is few, spoir amount is few, surrounding buildings influence small, simple in structure, saving material and construction safety.
Description
Technical field
The present invention relates to a kind of transmission line tower foundations, and in particular to a kind of composite foundation and construction method of shaft tower.
Background technology
The important component that shaft tower is constructed as ultra-high-tension power transmission line, buried part are known as tower bar basis,
Its effect is primarily used to ensure the stability of shaft tower, provides safeguard for the safe operation of transmission line of electricity.
Domestic high-voltage transmission line pole tower base form diversification, main cause are that China has a vast territory, geological conditions
Difference is big, and for the geological conditions for adapting to different, currently used base form has rock build-in type basis, bored pile foundation
Plinth, dredged foundation, monoblock type well foundation, mass raft foundation formula basis, associative form basis etc..
As people are higher and higher to saving economy, environmental protection and the requirement of mechanized construction, base form is continuous
Update is to meet the increasingly strict requirement of people.
Currently, form of most of transmission line foundation construction using heavy excavation, such method destroy greatly ambient enviroment,
And soft soil foundation is not suitable for it.
It is unavoidable during transmission line construction to cross over cities and towns, and building is intensive in cities and towns, can be provided for construction
Narrow space, construction be difficult to be unfolded, sometimes even there is a situation where transmission lines of electricity to be forced to relocate, cause great environmental disruption
And economic waste.
Therefore, to overcome drawbacks described above, the present invention provides a kind of composite foundation of shaft tower and construction methods.
Invention content
In order to solve the above-mentioned deficiency in the presence of the prior art, the present invention provides composite foundation and the construction of a kind of shaft tower
Method.
Technical solution provided by the invention is：A kind of composite foundation of shaft tower, including beam and open caisson (2),
The beam includes rood beam (3)；
The open caisson (2) includes the borehole wall (7) and the shaft bottom (8) positioned at the borehole wall (7) bottom, and the borehole wall (7) is by indulging
Section is that the minimum of one crib of rectangle is constituted vertically；
The beam is connected with the borehole wall top of open caisson.
Preferably, it forms and is respectively equipped with fulcrum (1) on the upside of the end of the rood beam (3).
Preferably, by multiple boreholes wall, superposition forms the borehole wall (7) vertically.
Preferably, there is backfill object (9) in the open caisson (2).
Preferably, the height of the fulcrum (1) is more than horizon.
Preferably, it is connected with connector between the adjacent crib.
Preferably, reserved and the rood beam (3) and the shaft bottom that the borehole wall (7) top and bottom end are respectively equipped with
(8) reinforcing bar connected.
Preferably, it is located at the rood beam (3) bottom and is laid with bed course (4) on the outside of the open caisson (2).
Preferably, the component of bed course (4) proportioning includes：653-732 kilograms of 42.5 cement of general silicon；SiO2Content is more than
85%, 0.31 μm of average grain diameter, 189-235 kilograms of the admixture that 0.5 μm of maximum particle diameter；The quartz sand of grain size 0.16-1.25mm
1125-1310 kilograms；35-70 kilograms of additive；110-145 kilograms of water.
Preferably, the fulcrum (1), the open caisson (2) and the rood beam (3) are poured by armored concrete.
Preferably, the component of the reinforcing bar proportioning includes：Carbon 0.20~0.25%, silicon 0.40~0.60%, manganese 1.40~
1.60%, vanadium 0.07~0.12%, phosphorus is less than or equal to 0.030%, and sulphur is less than or equal to 0.020%, nitrogen 0.0090~0.0130%,
Remaining is iron and inevitable impurity.
Based on same inventive concept, the present invention also provides a kind of construction methods of the composite foundation of shaft tower, including：
1) it will sink after several cribs vertically superposition, connected with connector between each crib；
2) to bottom sealing processing after the borehole wall (7) sinking, shaft bottom (8) are combined into the borehole wall (7) by casting concrete
It is whole；
3) the cushion cap part of the foundation soil of rood beam (3) is excavated；
4) after the completion of excavating, reinforcing bar and formwork supporting plate are connected, completes the formwork on rood beam (3) basis；
5) rood beam (3) is buried.
Preferably, after the completion of the excavation, reinforcing bar and formwork supporting plate are connected, the formwork for completing rood beam (3) basis includes：It presses
It is required that after the completion of excavating, bed course (4) is poured, after there is enough intensity in bed course (4) maintenance a period of time, assembling reinforcement and formwork
Plate.The reinforcing bar binding of reserved steel bar and rood beam (3) at the top of the borehole wall (7) is arrived together, and the formwork on rood beam (3) basis is completed.
Preferably, the backfill object (9) that digging is drawn when the borehole wall (7) is sunk is filled in open caisson (2).
Preferably, the burial rood beam (3) includes：Filling backfill object (9) simultaneously buries rood beam (3), by fulcrum (1)
Upper part is connected with shaft tower and is exposed on ground level.
Compared with the immediate prior art, technical solution provided by the invention has the advantages that：
(1) technical solution provided by the invention, the borehole wall constituted using vertical superposition, has acted not only as retaining wall, Er Qie
Draw digging during using its own gravity sink, to reach construction area range it is small, ensure construction personnel and machinery safety and
The characteristics of preventing from causing ground deformation effect surrounding buildings around during drawing shoveling.
(2) technical solution provided by the invention, the spoir that digging is drawn when by wall submersion are backfilling into open caisson, to reduce spoir
Fang Liang.
(3) technical solution provided by the invention, the composite foundation of use is compared with common pole and tower foundation, it is not necessary to each tower leg
With an isolated footing, it is also not required to complicated raft plate or bearing platform type basis, as long as connecting a rood beam on an open caisson
Basis forms composite foundation, to simplify foundation structure, has innovation and practical value.
(4) technical solution provided by the invention, using composite foundation and group pile cap basis and the common shaft tower base of shaft tower
The each tower leg of plinth is compared with a basis, and open caisson rood beam composite foundation obviously more saves material.
Description of the drawings
Fig. 1 is the composite foundation front view of the present invention；
Fig. 2 is the composite foundation vertical view of the present invention；
Fig. 3 is the well sinking schematic diagram of the present invention；
Fig. 4 is the bottom sealing schematic diagram of the present invention；
Fig. 5 is that the rood beam cushion cap part of the foundation soil of the present invention excavates schematic diagram；
Fig. 6 is the bed course schematic diagram of the present invention；
Fig. 7 is the burial rood beam schematic diagram of the present invention；
Fig. 8 is the unguyed preceding schematic diagram of shaft tower hypomere of the present invention；
Fig. 9 is schematic diagram after the shaft tower hypomere of the present invention is reinforced；
Figure 10 is that the sectional view at diameter of Spherical Volume energy consumer is added in the shaft tower tower body middle and lower part of the present invention；
Figure 11 is the diameter of Spherical Volume energy consumer schematic diagram of the present invention；
Figure 12 is the Behavior of Circular Ring Energy Dissipator of the present invention；
Wherein：1- fulcrums；2- open caissons；3- rood beams；4- bed courses；5- reinforcing bars；6- reinforcing bars；The 7- boreholes wall；The shaft bottoms 8-；9- is backfilled
Soil；10- borehole wall link positions；11- shaft tower angular poles；The horizontal side rod of 12- shaft towers；The branch of 13- connection diameter of Spherical Volume energy consumer and tower
Strut；14- diameter of Spherical Volume energy consumers；The angle iron connecting piece of 15- connection support bars and shaft tower；16- constitutes diameter of Spherical Volume energy consumer
Annulus；17- constitutes the connecting plate of diameter of Spherical Volume energy consumer.
Specific implementation mode
For a better understanding of the present invention, technical scheme of the present invention is described in further details below in conjunction with the accompanying drawings.
Embodiment 1：
As depicted in figs. 1 and 2, composite foundation provided by the invention is mainly made of beam and 2 two parts of open caisson；Beam is vertical
The rood beam 3 of horizontal composition；Open caisson 2 includes multiple boreholes wall 7 that vertical superposition is constituted and the shaft bottom 8 positioned at 7 bottom of the borehole wall, well
Wall 7 is made of vertically at least one crib that vertical section is rectangle；Beam is connected with the borehole wall top of open caisson, and composite foundation is located at ground
Under horizontal line；There are backfill object 9, backfill object 9 that soil can be used in open caisson 2；It is connected with connector between adjacent crib, connector can be used
Flange；The reserved reinforcing bar being connect with rood beam 3 and shaft bottom 8 that 7 top of the borehole wall and bottom end are respectively equipped with, fulcrum 1,2 cross of open caisson
Beam 3 can be used armored concrete and pour；Reinforcing bar is made of the component percentages of following proportioning：Carbon 0.20%, silicon 0.40%,
Manganese 1.40%, vanadium 0.07%, phosphorus are less than 0.030%, and sulphur is less than 0.020%, and nitrogen 0.0090%, remaining is for iron and inevitably
Impurity；Fulcrum 1 is respectively equipped on the upside of the end of rood beam 3, the height of 1 one end of fulcrum is more than horizon, and the other end is in ground level
Under；Immediately below rood beam 3 and 2 outside of open caisson is laid with bed course 4, and bed course 4 is made of the component of following proportioning：42.5 water of general silicon
653 kilograms of mud；SiO2Content is more than 85%, 0.31 μm of average grain diameter, 189 kilograms of the admixture that 0.5 μm of maximum particle diameter；Grain size
1125 kilograms of the quartz sand of 0.16mm；35 kilograms of additive；110 kilograms of water.
Embodiment 2：
As depicted in figs. 1 and 2, composite foundation provided by the invention is mainly made of beam and 2 two parts of open caisson；Beam is vertical
The rood beam 3 of horizontal composition；Open caisson 2 includes multiple boreholes wall 7 that vertical superposition is constituted and the shaft bottom 8 positioned at 7 bottom of the borehole wall, well
Wall 7 is made of vertically at least one crib that vertical section is rectangle；Beam is connected with the borehole wall top of open caisson, and composite foundation is located at ground
Under horizontal line；There are backfill object 9, backfill object 9 that soil can be used in open caisson 2；It is connected with connector between adjacent crib, connector can be used
Flange；The reserved reinforcing bar being connect with rood beam 3 and shaft bottom 8 that 7 top of the borehole wall and bottom end are respectively equipped with, fulcrum 1,2 cross of open caisson
Beam 3 can be used armored concrete and pour；Reinforcing bar is made of the component percentages of following proportioning：Carbon 0.22%, silicon 0.50%,
Manganese 1.50%, vanadium 0.10%, phosphorus are equal to 0.030%, and sulphur is equal to 0.020%, and nitrogen 0.0110%, remaining is for iron and inevitably
Impurity；Fulcrum 1 is respectively equipped on the upside of the end of rood beam 3, the height of 1 one end of fulcrum is more than horizon, and the other end is in ground level
Under；Immediately below rood beam 3 and 2 outside of open caisson is laid with bed course 4, and bed course 4 is made of the component of following proportioning：42.5 water of general silicon
691 kilograms of mud；SiO2Content is more than 85%, 0.31 μm of average grain diameter, 211 kilograms of the admixture that 0.5 μm of maximum particle diameter；Grain size is
1215 kilograms of the quartz sand of 0.7mm；52 kilograms of additive；127 kilograms of water.
Embodiment 3：
As depicted in figs. 1 and 2, composite foundation provided by the invention is mainly made of beam and 2 two parts of open caisson；Beam is vertical
The rood beam 3 of horizontal composition；Open caisson 2 includes multiple boreholes wall 7 that vertical superposition is constituted and the shaft bottom 8 positioned at 7 bottom of the borehole wall, well
Wall 7 is made of vertically at least one crib that vertical section is rectangle；Beam is connected with the borehole wall top of open caisson, and composite foundation is located at ground
Under horizontal line；There are backfill object 9, backfill object 9 that soil can be used in open caisson 2；It is connected with connector between adjacent crib, connector can be used
Flange；The reserved reinforcing bar being connect with rood beam 3 and shaft bottom 8 that 7 top of the borehole wall and bottom end are respectively equipped with, fulcrum 1,2 cross of open caisson
Beam 3 can be used armored concrete and pour；Reinforcing bar is made of the component percentages of following proportioning：Carbon 0.25%, silicon 0.60%,
Manganese 1.60%, vanadium 0.12%, phosphorus are equal to 0.030%, and sulphur is less than 0.020%, and nitrogen 0.0130%, remaining is for iron and inevitably
Impurity；Fulcrum 1 is respectively equipped on the upside of the end of rood beam 3, the height of 1 one end of fulcrum is more than horizon, and the other end is in ground level
Under；Immediately below rood beam 3 and 2 outside of open caisson is laid with bed course 4, and bed course 4 is made of the component of following proportioning：42.5 water of general silicon
732 kilograms of mud；SiO2Content is more than 85%, 0.31 μm of average grain diameter, 35 kilograms of the admixture that 0.5 μm of maximum particle diameter；Grain size
1310 kilograms of the quartz sand of 1.25mm；70 kilograms of additive；145 kilograms of water.
As shown in figure 3, multiple boreholes wall 7 are superimposed and are sunk vertically according to design requirement, 7 bottom of the borehole wall and
Top must reserve enough reinforcing bars, often be equipped with borehole wall link position 10 between the section borehole wall 7, often be connected with connector between the section borehole wall 7
It connects, flange can be used in connector, and well sinking process observes attention correction at any time.While well sinking process, to native around
Body forms retaining wall, prevents the deformation of ground around, influences the building of surrounding, ensures the safety of construction personnel and machinery, for safety
Construction provides important leverage.
As shown in figure 4, the borehole wall 7 is sunk down into design position, to bottom sealing processing.By the reserved steel bar of 7 bottom of the borehole wall
Reinforcing bar binding with shaft bottom 8 pours simultaneously curing concrete, after concrete setting, shaft bottom 8 is combined integral with the borehole wall 7 together.
As shown in figure 5, after concrete curing for a period of time afterwards the borehole wall 7 is sunk when draw the backfill object 9 of digging and be filled to open caisson 2
Interior, soil can be used in backfill object 9, and earth volume is abandoned to reduce, and by drawing, the size and depth excavated is determined, then to cross
The cushion cap part of the foundation soil of beam 3 excavates.
As shown in Figures 6 and 7, bed course 4 of the invention after the completion of excavating as required, pours bed course 4, when bed course 4 conserves one section
Between have enough intensity after, assembling reinforcement and formwork supporting plate.The reserved steel bar at 7 top of the borehole wall and the reinforcing bar binding of rood beam 3 to one
It rises, completes the formwork on 3 basis of rood beam, concrete curing to sufficient intensity can insert backfill object 9, bury rood beam 3, will prop up
The upper part of point 1 is connected with shaft tower and is exposed on ground level, and end portion is connected with rood beam 3 by casting concrete
It connects and under ground level.
As illustrated in figs. 8-12, another goal of the invention of the invention is a kind of shaft tower, and the shaft tower contains to be erect by four
The cross section of square-shaped frame that surrounds of 11, four horizontal side rods 12 of angular pole, by the prior art structural analysis and scene
Actual measurement is found out among the cross section square-shaped frame of overhead power transmission shaft tower weak part, and diameter of Spherical Volume energy consumer is equipped with.
Diameter of Spherical Volume energy consumer annulus 16 made of two low carbon steel plate erect curlings, which is mutually perpendicular to intersect, to be constituted, circle
Ring diameter is equal to 60% of the square-shaped frame catercorner length where the 14 installation region centre of sphere of fixed diameter of Spherical Volume energy consumer.
Diameter of Spherical Volume energy consumer is symmetrical arranged four small-sized connecting plates in horizontal plane where its centre of sphere and annulus intersection
17, supporting rod 13 has been bolted in connecting plate 17, and supporting rod 13 is bolted or is welded with angle iron connecting piece 15, and angle steel connects
Fitting 15 is supported on the horizontal side rod 12 of the quadrangle both sides of overhead power transmission shaft tower cross section square-shaped frame.
Supporting rod 13 is made of Q235 angle steel, and length is fixed 14 installing zone of diameter of Spherical Volume energy consumer in installation region
The half of square-shaped frame catercorner length where the centre of sphere of domain and constitute diameter of Spherical Volume energy consumer annular radii difference.
If for M shape overhead power transmission shaft tower, the diameter of Spherical Volume energy consumer centre of sphere is set to tower body middle and lower part rice word and is intersected
Horizontal plane where position.
When wind action, under the action of horizontal force between main material relative displacement occurs for overhead power transmission tower structure.
Diameter of Spherical Volume energy consumer is connected to by supporting bar on overhead power transmission tower structure, overhead power transmission shaft tower can be not only improved
The overall stiffness and stability of structure, and can under typhoon load action by diameter of Spherical Volume consume energy its deformation dissipate one
Divide energy, and then improves the overall performance of overhead power transmission shaft tower.
Another goal of the invention of the present invention also resides in a kind of construction method of the composite foundation of shaft tower, including：
1) multiple cribs are superimposed and are sunk vertically according to design requirement, the borehole wall (7) bottom and top palpus
Enough reinforcing bars are reserved, borehole wall link position (10) is equipped between each borehole wall (7), are often connected with connector between the section borehole wall (7)
It connects, flange can be used in connector, and well sinking process observes attention correction at any time；
2) borehole wall (7) is sunk down into design position, to bottom sealing processing.By the reserved steel bar and well of the borehole wall (7) bottom
The reinforcing bar binding at bottom (8) together, pours simultaneously curing concrete, after concrete setting, shaft bottom (8) are combined into whole with the borehole wall (7)
Body；
3) after concrete curing for a period of time afterwards the borehole wall (7) are sunk when draw the backfill object (9) of digging and be filled in open caisson (2),
Soil can be used in backfill object (9), and earth volume is abandoned to reduce；
4) size and depth excavated by drawing, are determined, then the cushion cap part of the foundation soil of rood beam (3) is opened
It digs；
5) after the completion of excavating as required, bed course (4) is poured, after there is enough intensity in bed course (4) maintenance a period of time, binding
Reinforcing bar and formwork supporting plate.The reinforcing bar binding of reserved steel bar and rood beam (3) at the top of the borehole wall (7) is arrived together, and rood beam (3) base is completed
The formwork of plinth, when concreting, should vibrate by specification；
6) concrete curing can insert backfill object (9) to sufficient intensity, rood beam (3) be buried, by the upper end of fulcrum (1)
Part be connected with shaft tower and be exposed on ground level, end portion be connected by casting concrete with rood beam (3) and
Under ground level.
Preferably, after the present invention positions pit shaft, cut the earth out of pit shaft, wellbore bottom is emptied, pit shaft utilizes itself
Gravity sinks, thus can be by construction operation scope limitation in basic scope, and reduces excavation of earthwork workload.
It these are only the embodiment of the present invention, be not intended to restrict the invention, it is all in the spirit and principles in the present invention
Within, any modification, equivalent substitution, improvement and etc. done, be all contained in apply pending scope of the presently claimed invention it
It is interior.
Claims (15)
1. a kind of composite foundation of shaft tower, which is characterized in that including beam and open caisson (2),
The beam includes rood beam (3)；
The open caisson (2) includes the borehole wall (7) and the shaft bottom (8) positioned at the borehole wall (7) bottom, and the borehole wall (7) is by vertical section
It is constituted vertically for the minimum of one crib of rectangle；
The beam is connected with the borehole wall top of open caisson.
2. a kind of composite foundation of shaft tower as described in claim 1, which is characterized in that form the end of the rood beam (3)
Upside is respectively equipped with fulcrum (1).
3. a kind of composite foundation of shaft tower as described in claim 1, which is characterized in that the borehole wall (7) is erected by multiple boreholes wall
Straight superposition composition.
4. a kind of composite foundation of shaft tower as described in claim 1, which is characterized in that have backfill object in the open caisson (2)
(9)。
5. a kind of composite foundation of shaft tower as claimed in claim 2, which is characterized in that the height of the fulcrum (1) is more than ground
Horizontal line.
6. a kind of composite foundation of shaft tower as described in claim 1, which is characterized in that use connector between the adjacent crib
Connection.
7. a kind of composite foundation of shaft tower as described in claim 1, which is characterized in that the borehole wall (7) top and bottom end point
The reserved reinforcing bar being connect with the rood beam (3) and the shaft bottom (8) not being equipped with.
8. a kind of composite foundation of shaft tower as described in claim 1, which is characterized in that be located at the rood beam (3) bottom and
It is laid with bed course (4) on the outside of the open caisson (2).
9. a kind of composite foundation of shaft tower as claimed in claim 8, which is characterized in that the component packet of bed course (4) proportioning
It includes：653-732 kilograms of 42.5 cement of general silicon；SiO2Content is more than 85%, and 0.31 μm of average grain diameter, 0.5 μm of maximum particle diameter is mixed
With material 189-235 kilograms；1125-1310 kilograms of the quartz sand of grain size 0.16-1.25mm；35-70 kilograms of additive；Water 110-
145 kilograms.
10. a kind of composite foundation of shaft tower as claimed in claim 2, which is characterized in that the fulcrum (1), the open caisson (2)
It is poured by armored concrete with the rood beam (3).
11. a kind of composite foundation of shaft tower as described in claim 7 or 10, which is characterized in that the component of the reinforcing bar proportioning
Including：Carbon 0.20~0.25%, silicon 0.40~0.60%, manganese 1.40~1.60%, vanadium 0.07~0.12%, phosphorus is less than or equal to
0.030%, sulphur is less than or equal to 0.020%, and nitrogen 0.0090~0.0130%, remaining is iron and inevitable impurity.
12. a kind of construction method of the composite foundation of shaft tower as described in any one of claim 1 to 11, feature exist
In, including：
1) it will sink after several cribs vertically superposition, connected with connector between each crib；
2) to bottom sealing processing after the borehole wall (7) sinking, shaft bottom (8) are combined with the borehole wall (7) by casting concrete integral；
3) the cushion cap part of the foundation soil of rood beam (3) is excavated；
4) after the completion of excavating, reinforcing bar and formwork supporting plate are connected, completes the formwork on rood beam (3) basis；
5) rood beam (3) is buried.
13. the construction method of the composite foundation such as a kind of shaft tower of claim 12, which is characterized in that after the completion of the excavation,
Reinforcing bar and formwork supporting plate are connected, the formwork for completing rood beam (3) basis includes：After the completion of excavating as required, bed course (4) is poured, is padded
After there is enough intensity in layer (4) maintenance a period of time, assembling reinforcement and formwork supporting plate；Reserved steel bar and cross at the top of the borehole wall (7)
The reinforcing bar binding of beam (3) completes the formwork on rood beam (3) basis to together.
14. the construction method of the composite foundation such as a kind of shaft tower of claim 12, which is characterized in that the borehole wall (7) is sunk
When draw the backfill object (9) of digging and be filled in open caisson (2).
15. the construction method of the composite foundation such as a kind of shaft tower of claim 12, which is characterized in that the burial rood beam
(3) include：Filling backfill object (9) simultaneously buries rood beam (3), and the upper part of fulcrum (1) is connected with shaft tower and is exposed at ground
On plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081828.2A CN108301433A (en) | 2018-01-29 | 2018-01-29 | A kind of composite foundation and construction method of shaft tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810081828.2A CN108301433A (en) | 2018-01-29 | 2018-01-29 | A kind of composite foundation and construction method of shaft tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108301433A true CN108301433A (en) | 2018-07-20 |
Family
ID=62866552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810081828.2A Pending CN108301433A (en) | 2018-01-29 | 2018-01-29 | A kind of composite foundation and construction method of shaft tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108301433A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499501A (en) * | 2014-12-08 | 2015-04-08 | 国家电网公司 | Narrow-foundation-tower single-pile pier-type self-stabilized foundation for power transmission line |
| CN105951863A (en) * | 2016-06-17 | 2016-09-21 | 北京市市政四建设工程有限责任公司 | Construction device of active assembling type open caisson and construction method using same |
| CN106088133A (en) * | 2016-06-15 | 2016-11-09 | 中国电力科学研究院 | Transmission line of electricity composite foundation for desert area |
| JP2017203305A (en) * | 2016-05-12 | 2017-11-16 | 前田建設工業株式会社 | Foundation of offshore facility, offshore facility, and foundation construction method of offshore facility |
-
2018
- 2018-01-29 CN CN201810081828.2A patent/CN108301433A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104499501A (en) * | 2014-12-08 | 2015-04-08 | 国家电网公司 | Narrow-foundation-tower single-pile pier-type self-stabilized foundation for power transmission line |
| JP2017203305A (en) * | 2016-05-12 | 2017-11-16 | 前田建設工業株式会社 | Foundation of offshore facility, offshore facility, and foundation construction method of offshore facility |
| CN106088133A (en) * | 2016-06-15 | 2016-11-09 | 中国电力科学研究院 | Transmission line of electricity composite foundation for desert area |
| CN105951863A (en) * | 2016-06-17 | 2016-09-21 | 北京市市政四建设工程有限责任公司 | Construction device of active assembling type open caisson and construction method using same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106088650B (en) | A kind of method and building suitable for building with brick-concrete structure underground increasing layer | |
| CN103774675B (en) | Combined double-row-pile combined vertical prestress anchor rod supporting system and construction method thereof | |
| CN105736001B (en) | A kind of construction method using prefabricated parts subway station | |
| CN105239578B (en) | Water-rich sand layer deep foundation pit underwater construction method | |
| CN109024662A (en) | Method of the anchor pile underpinning without basement building underground space increasing layer | |
| CN103938634B (en) | A kind of deep foundation pit supporting structure and construction method | |
| CN107059773A (en) | Assembled integral revetment structure and its construction method on a kind of soft soil foundation | |
| CN106245927B (en) | A kind of method and building suitable for frame structure building underground increasing layer | |
| CN108150190A (en) | Unevenly-pressured shallow tunnel rock crusher section excavates safeguard structure and construction method | |
| WO2021190044A1 (en) | Composite lightweight pile structure, manufacturing method, construction method and pile connecting method | |
| CN105155602A (en) | Multi-support foundation strengthening comprehensive controlling method | |
| CN103215889A (en) | Arch bridge foundation used on bad geological conditions and construction method of arch bridge foundation | |
| CN202117059U (en) | Stiffened cement soil baffle wall foundation pit space enclosing structure | |
| CN108643219A (en) | A kind of assembled transmission line of electricity anchor rod static pressure Minitype pile foundation and its construction method | |
| CN202730796U (en) | Existing retaining wall rib plate type unloading reinforcing structure | |
| KR101187170B1 (en) | Application of under pinning method in remodeling | |
| CN111576479A (en) | Retaining structure of filling slope and construction method | |
| CN107700434A (en) | A kind of dome grating formula armored concrete mud-rock flow blocking dam and its construction process | |
| CN101298779B (en) | Method for enhancing frame construction building shock strength | |
| CN206337566U (en) | Foundation ditch vertical prestressing anchor pole supporting construction | |
| CN102605801A (en) | Suspension semi-reverse-construction method for underground circular water tank | |
| CN108301433A (en) | A kind of composite foundation and construction method of shaft tower | |
| CN204898700U (en) | Bridge foundation structure | |
| CN204023600U (en) | Pillar crane composite base structure | |
| CN110106930B (en) | Iron tower foundation reinforcement protection method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180720 |