CN110172988A - A kind of piling formula composite concrete placement ground and its construction method - Google Patents
A kind of piling formula composite concrete placement ground and its construction method Download PDFInfo
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- CN110172988A CN110172988A CN201910598150.XA CN201910598150A CN110172988A CN 110172988 A CN110172988 A CN 110172988A CN 201910598150 A CN201910598150 A CN 201910598150A CN 110172988 A CN110172988 A CN 110172988A
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- 238000010276 construction Methods 0.000 title claims abstract description 34
- 239000004567 concrete Substances 0.000 title claims abstract description 31
- 239000002131 composite material Substances 0.000 title claims abstract description 25
- 239000002689 soil Substances 0.000 claims abstract description 38
- 230000002787 reinforcement Effects 0.000 claims abstract description 10
- 238000000034 method Methods 0.000 claims abstract description 8
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000012360 testing method Methods 0.000 claims abstract description 7
- 238000009826 distribution Methods 0.000 claims abstract description 5
- 229920006255 plastic film Polymers 0.000 claims description 9
- 239000002985 plastic film Substances 0.000 claims description 9
- 239000011435 rock Substances 0.000 claims description 7
- 239000004576 sand Substances 0.000 claims description 7
- 238000005056 compaction Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 claims 1
- 239000004744 fabric Substances 0.000 claims 1
- 238000009435 building construction Methods 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000011150 reinforced concrete Substances 0.000 description 4
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229920006264 polyurethane film Polymers 0.000 description 2
- 238000007596 consolidation process Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Foundations (AREA)
Abstract
The present invention relates to technical field of building construction, the present invention discloses a kind of piling formula composite concrete placement ground, including ground basic body, long stake, vertical stub, cushion cap and frame column vertically, the vertical main reinforcement of long stake and the main reinforcement of vertical stub protrude into cushion cap from bottom, vertical long stake is centered on cushion cap bottom centre in degree corner square profile, the square distribution centered on cushion cap bottom centre of vertical stub.Invention additionally discloses a kind of construction methods of piling formula composite concrete placement ground, including following construction procedure: step 1: preparing place；Step 2: mattress layer and backfill soil supporting layer are laid in bottom of foundation ditch；Step 3: production driven pile；Step 4: piling trial test is carried out；Step 6: formal piling；Step 7: cushion cap is poured.Have the beneficial effect that vertical long stake is interspersed with vertical stub, each stake independence is good, can use single pile finite element and quickly calculates, difficulty of construction is low, and project cost is low, and construction method is simple.
Description
Technical field
The present invention relates to technical field of building construction, specially a kind of piling formula composite concrete placement ground and its construction method.
Background technique
Ground refers to that the soil body or rock mass of supporting base below building, ground have subsoil and composite foundation (artificial
Ground) two classes.Subsoil is the natural soil layer for being not required to very important person's reinforcing, and composite foundation needs people's consolidation process, common to have aggregate chips
Bed course, sand bedding course, combination ash earthen backfill are tamped again.
Composite foundation is by the way that vertical or horizontal reinforcement is arranged in ground, and reinforcement and original place base are formed compoundly
Base, to improve bearing capacity of foundation slab, reduce settlement of foundation.For heavy construction structure, in terms of settling with bearing capacity control, stake
Basis is undoubtedly preferred composite foundation in current engineer application, with opening up for pile foundation progress of research and its application range
Width, long-short pile combination form are concerned with its peculiar advantage in the realm of building construction, occur long-short pile combination foundation and
Long-short pile combined foundation.But in the prior art, long-short pile is generally using being simply interspersed, and long-short pile quantity is more, engineering
Cost is high, and the advantage of long-short pile is underutilized, and difficulty of construction is also big.
Summary of the invention
The purpose of the present invention is to provide a kind of piling formula composite concrete placement ground and its construction methods, to solve above-mentioned background
The problem of being proposed in technology.
To achieve the above object, the invention provides the following technical scheme: a kind of piling formula composite concrete placement ground, including ground
Ontology, vertically long stake, vertical stub, cushion cap and frame column, described ground basic body is from top to bottom successively by plain concrete layer, ground
Supporting course, mattress layer, Soft Soil Layer and deep layer supporting course composition, the main reinforcement of the vertical long stake and the main reinforcement of vertical stub are the bottom of from
Portion protrudes into cushion cap, and the vertical long stake is in spend corner square profile, and long stake vertically centered on cushion cap bottom centre
Pile top protrude into deep layer supporting course, the vertical stub square distribution centered on cushion cap bottom centre, and vertical
The pile top of stub protrudes into Soft Soil Layer, is fixedly connected with frame column at the top of the cushion cap.
Preferably, the soil supporting layer is formed by plain soil and aggregate chips by compaction in layers, and the cushion cap is cup-shaped or rank
Trapezoidal, cushion cap is embedded in soil supporting layer preferably, and the mattress layer is by the graded sand rock layers that are located above and is located below
Plastic film layers tile, the graded gravel particle size that graded sand rock layers use is between 5-40 millimeters, wherein 25-40
The graded gravel content of millimeter is no less than 50%, and plastic film layers are using the double-deck polyurethane film, and the thickness of plastic film layers is not
Less than 8 millimeters.
Preferably, the cushion cap bottom sets that there are four vertical long stakes and eight vertical stubs, eight vertical stubs to be surrounded
The apex angle of square be in the side centers of 45 degree of corner squares that four vertical long stakes are surrounded.
Preferably, in addition to four vertical long stakes, cushion cap bottom centre is additionally provided with a vertical long stake, and adjacent upright is long
The center of stake and vertical stub is away from 2.5-3.0 times for vertical stub outer diameter.
A kind of construction method of piling formula composite concrete placement ground, including following construction procedure:
Step 1: preparing place, removing obstacles object, and gutter is arranged in smooth location；
Step 2: excavating downwards the foundation pit of 30-35 meters of depth in place with excavator, is laid with mattress layer in bottom of foundation ditch
Afterwards, 20-25 meters of soil supporting layer is backfilled；
Step 3: outdoor production driven pile near at the construction field (site), and carry out stacking by vertical long stake and vertical stub and fold
It puts；
Step 4: determining piling order, and scale is arranged, and sets up pile frame, carries out piling trial test with sinking apparatus；
Step 6: it is formally driven piles by centre to two sides with sinking apparatus；
Step 7: pouring cushion cap, is backfilling and compacted 5-15 meters of soil supporting layers, and pouring frame column pours plain concrete layer；
Preferably, the vertical long stake and vertical stub are all made of deformed bar mixed mud tubing string and are spliced, every section
The length of deformed bar mixed mud tubing string is 10 meters, is connected between deformed bar mixed mud tubing string using ring flange.
Preferably, the length of the vertical long stake is 50 meters, and the length of the vertical stub is 20 meters.
Compared with prior art, the beneficial effects of the present invention are:
1. the present invention can play vertical long stake control deformation by the cooperation between long stake and vertical stub vertically simultaneously
The bearing capacity of ability and soil supporting layer reduces settlement of foundation, reduces difficulty of construction, and project cost is low, construction method letter
It is single；
2. the present invention improves the bearing capacity of pile foundation by vertical stub, the carrying of soil supporting layer can be made full use of
Power, and by the vertical stub of reasonable Arrangement, reduce vertical long stake, reduces construction cost and difficulty；
3. be located at the periphery of eight vertical stubs by four vertical long stakes in the case where limited amount, be conducive to for
Entire pile foundation provides bearing capacity, and the vertical stub for being located inside can give full play to its rigidity, centrally located vertical
Long stake and four vertical long stakes of periphery are interspersed with vertical stub, and each stake independence is good, can use single pile finite element
Quickly calculate.
Detailed description of the invention
Fig. 1 is schematic structural view of the invention；
Fig. 2 is the distribution schematic diagram of long stake and vertical stub in cushion cap bottom vertically in the present invention.
In figure: 1 plain concrete layer, 2 soil supporting layers, 3 mattress layers, 4 Soft Soil Layers, 5 deep layer supporting courses, 6 vertical long stakes, 7
Vertical stub, 8 cushion caps, 9 frame columns.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1 to Fig. 2 is please referred to, the present invention provides a kind of technical solution: a kind of piling formula composite concrete placement ground, including ground
Ontology, vertical long stake 6, vertical stub 7, cushion cap 8 and frame column 9.Ground basic body from top to bottom successively by plain concrete layer 1,
Base supporting course 2, mattress layer 3, Soft Soil Layer 4 and deep layer supporting course 5 form.Wherein, soil supporting layer 2 is by the bottom of foundation with next
The weak soil part of depthkeeping degree is excavated, then backfill element soil and aggregate chips, and is formed by compaction in layers.Mattress layer 3 is upper by being located at
The graded sand rock layers and underlying plastic film layers of side tile, the graded gravel particle size that graded sand rock layers use
Between 5-40 millimeters, wherein 25-40 millimeters of graded gravel content is 50%, and plastic film layers are using the double-deck thin polyurethane
Film, plastic film layers with a thickness of 8 millimeters.Ground basic body can prevent from the steam of underground from penetrating into ground holding by mattress layer 3
Power layer 2 accelerates soil supporting layer 2 to form.
The vertical main reinforcement of long stake 6 and the main reinforcement of vertical stub 7 protrude into cushion cap 8 from bottom, and vertical long stake 6 is with cushion cap 8
It is in 45 degree of corner square profiles centered on bottom centre, and the pile top of long stake 6 protrudes into deep layer supporting course 5 vertically, vertically
The square distribution centered on 8 bottom centre of cushion cap of stub 7, and the pile top of vertical stub 7 protrudes into Soft Soil Layer 4, cushion cap 8
Cup-shaped, cushion cap 8 is embedded in soil supporting layer 2, and frame column 9 is fixedly connected at the top of cushion cap 8.
As shown in Fig. 2, 8 bottom of cushion cap is set, there are four vertical long stakes 6 and eight vertical stubs 7, eight vertical stubs 7 to be enclosed
At the apex angle of square be in the side centers of 45 degree of corner squares that four vertical long stakes 6 are surrounded.Except four vertical long
Outside stake 6,8 bottom centre of cushion cap is additionally provided with a vertical long stake 6, and the center of the long stake 6 of adjacent upright and vertical stub 7 is away from being vertically
3.0 times of 7 outer diameter of stub.
Five vertical long stakes 6 and eight vertical stubs 7 are evenly distributed, wherein four vertical long stakes 6 are vertical short positioned at eight
The periphery of stake 7, is conducive to provide bearing capacity for entire pile foundation, and the vertical stub 7 for being located inside can give full play to it
Rigidity, centrally located vertical long stake 6 and four vertical long stakes of periphery are interspersed with vertical stub 7, are distributed relatively equal
Even, each stake independence is good, can use single pile finite element and quickly calculates, simple and convenient, and it is relatively easy to calculate check.By vertical
Cooperation between long stake 6 and vertical stub 7 can play vertical long stake 6 simultaneously and control holding for deformability and soil supporting layer 2
Loading capability is improved the bearing capacity of pile foundation by vertical stub 7, can make full use of the bearing capacity of soil supporting layer 2, and led to
The vertical stub 7 of reasonable Arrangement is crossed, reduces vertical long stake 6, reduces construction cost and difficulty.
Embodiment 1
A kind of construction method of piling formula composite concrete placement ground, including following construction procedure:
Step 1: preparing place, removing obstacles object, and gutter is arranged in smooth location；
Step 2: excavating downwards the foundation pit of 30 meters of depth in place with excavator, after bottom of foundation ditch is laid with mattress layer 3,
The soil supporting layer 2 of 20 meters of backfill；
Step 3: outdoor production driven pile near at the construction field (site), and stacking is carried out by vertical long stake 6 and vertical stub 7
It stacks；
Step 4: determining piling order, and scale is arranged, and sets up pile frame, carries out piling trial test with sinking apparatus；
Step 6: it is formally driven piles by centre to two sides with sinking apparatus；
Step 7: pouring cushion cap, is backfilling and compacted 10 meters of soil supporting layers 2, and pouring frame column 9 pours plain concrete layer 1；
Wherein, vertical long stake 6 and vertical stub 7 are all made of deformed bar mixed mud tubing string and are spliced, and every section is answered in advance
The length of power reinforced concrete tubing string is 10 meters, is connected between deformed bar mixed mud tubing string using ring flange.Vertical long stake 6
Length be 50 meters, the length of vertical stub 7 is 20 meters.
Embodiment 2
A kind of construction method of piling formula composite concrete placement ground, including following construction procedure:
Step 1: preparing place, removing obstacles object, and gutter is arranged in smooth location；
Step 2: excavating downwards the foundation pit of 35 meters of depth in place with excavator, after bottom of foundation ditch is laid with mattress layer 3,
The soil supporting layer 2 of 25 meters of backfill；
Step 3: outdoor production driven pile near at the construction field (site), and stacking is carried out by vertical long stake 6 and vertical stub 7
It stacks；
Step 4: determining piling order, and scale is arranged, and sets up pile frame, carries out piling trial test with sinking apparatus；
Step 6: it is formally driven piles by centre to two sides with sinking apparatus；
Step 7: pouring cushion cap, is backfilling and compacted 10 meters of soil supporting layers 2, and pouring frame column 9 pours plain concrete layer 1；
Wherein, vertical long stake 6 and vertical stub 7 are all made of deformed bar mixed mud tubing string and are spliced, and every section is answered in advance
The length of power reinforced concrete tubing string is 10 meters, is connected between deformed bar mixed mud tubing string using ring flange.Vertical long stake 6
Length be 50 meters, the length of vertical stub 7 is 20 meters.
Embodiment 3
A kind of construction method of piling formula composite concrete placement ground, including following construction procedure:
Step 1: preparing place, removing obstacles object, and gutter is arranged in smooth location；
Step 2: excavating downwards the foundation pit of 30 meters of depth in place with excavator, after bottom of foundation ditch is laid with mattress layer 3,
The soil supporting layer 2 of 25 meters of backfill；
Step 3: outdoor production driven pile near at the construction field (site), and stacking is carried out by vertical long stake 6 and vertical stub 7
It stacks；
Step 4: determining piling order, and scale is arranged, and sets up pile frame, carries out piling trial test with sinking apparatus；
Step 6: it is formally driven piles by centre to two sides with sinking apparatus；
Step 7: pouring cushion cap, is backfilling and compacted 5 meters of soil supporting layers 2, and pouring frame column 9 pours plain concrete layer 1；
Wherein, vertical long stake 6 and vertical stub 7 are all made of deformed bar mixed mud tubing string and are spliced, and every section is answered in advance
The length of power reinforced concrete tubing string is 10 meters, is connected between deformed bar mixed mud tubing string using ring flange.Vertical long stake 6
Length be 50 meters, the length of vertical stub 7 is 20 meters.
Embodiment 4
A kind of construction method of piling formula composite concrete placement ground, including following construction procedure:
Step 1: preparing place, removing obstacles object, and gutter is arranged in smooth location；
Step 2: excavating downwards the foundation pit of 35 meters of depth in place with excavator, after bottom of foundation ditch is laid with mattress layer 3,
The soil supporting layer 2 of 20 meters of backfill；
Step 3: outdoor production driven pile near at the construction field (site), and stacking is carried out by vertical long stake 6 and vertical stub 7
It stacks；
Step 4: determining piling order, and scale is arranged, and sets up pile frame, carries out piling trial test with sinking apparatus；
Step 6: it is formally driven piles by centre to two sides with sinking apparatus；
Step 7: pouring cushion cap, is backfilling and compacted 15 meters of soil supporting layers 2, and pouring frame column 9 pours plain concrete layer 1；
Wherein, vertical long stake 6 and vertical stub 7 are all made of deformed bar mixed mud tubing string and are spliced, and every section is answered in advance
The length of power reinforced concrete tubing string is 10 meters, is connected between deformed bar mixed mud tubing string using ring flange.Vertical long stake 6
Length be 50 meters, the length of vertical stub 7 is 20 meters.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (8)
1. a kind of piling formula composite concrete placement ground, including ground basic body, vertically long stake (6), vertical stub (7), cushion cap (8) and frame
Trestle (9), it is characterised in that: described ground basic body is from top to bottom successively by plain concrete layer (1), soil supporting layer (2), mattress
Layer (3), Soft Soil Layer (4) and deep layer supporting course (5) composition, the main reinforcement of the vertical long stake (6) and the main reinforcement of vertical stub (7) are equal
It is protruded into cushion cap (8) from bottom, the vertical long stake (6) is centered on cushion cap (8) bottom centre in 45 degree of corner squares point
Cloth, and the pile top of long stake (6) protrudes into deep layer supporting course (5) vertically, and the vertical stub (7) is with cushion cap (8) bottom centre
Centered on square distribution, and the pile top of vertical stub (7) protrudes into Soft Soil Layer (4), fixed at the top of the cushion cap (8) to connect
Connect frame column (9).
2. a kind of piling formula composite concrete placement ground according to claim 1, it is characterised in that: the soil supporting layer (2)
It is formed by plain soil and aggregate chips by compaction in layers, the cushion cap (8) is cup-shaped or stairstepping, cushion cap (8) are embedded in ground holding force
In layer (2).
3. a kind of piling formula composite concrete placement ground according to claim 1, it is characterised in that: the mattress layer (3) is by position
It tiles in the graded sand rock layers of top and underlying plastic film layers, the graded gravel particle that graded sand rock layers use
Size is between 5-40 millimeters, and wherein 25-40 millimeters of graded gravel content is no less than 50%, and plastic film layers are using double-deck poly-
The thickness of urethane film, plastic film layers is not less than 8 millimeters.
4. a kind of piling formula composite concrete placement ground according to claim 1, it is characterised in that: cushion cap (8) bottom is set
There are four vertical long stake (6) and eight vertical stubs (7), the apex angle for the square that eight vertical stubs (7) are surrounded is in four
The side center for 45 degree of corner squares that a vertical long stake (6) is surrounded.
5. a kind of piling formula composite concrete placement ground according to claim 1, it is characterised in that: remove four vertical long stakes
(6) outside, cushion cap (8) bottom centre is additionally provided with a vertical long stake (6), the center of the long stake of adjacent upright (6) and vertical stub (7)
Away from 2.5-3.0 times for vertical stub (7) outer diameter.
6. a kind of construction method of the piling formula composite concrete placement ground as described in claim 1-5 any one, it is characterised in that:
Including following construction procedure:
Step 1: preparing place, removing obstacles object, and gutter is arranged in smooth location；
Step 2: excavating downwards the foundation pit of 30-35 meters of depth in place with excavator, after bottom of foundation ditch is laid with mattress layer (3),
The soil supporting layer (2) of 20-25 meters of backfill；
Step 3: outdoor production driven pile near at the construction field (site), and stacking is carried out by vertical long stake (6) and vertical stub (7)
It stacks；
Step 4: determining piling order, and scale is arranged, and sets up pile frame, carries out piling trial test with sinking apparatus；
Step 6: it is formally driven piles by centre to two sides with sinking apparatus；
Step 7: pouring cushion cap, is backfilling and compacted 5-15 meters of soil supporting layers (2), and pouring frame column (9) pours plain concrete layer
(1)。
7. a kind of construction method of piling formula composite concrete placement ground according to claim 6, it is characterised in that: described vertical
Long stake (6) and vertical stub (7) are all made of deformed bar mixed mud tubing string and are spliced, every section deformed bar mixed mud pipe
The length of column is 10 meters, is connected between deformed bar mixed mud tubing string using ring flange.
8. a kind of construction method of piling formula composite concrete placement ground according to claim 7, it is characterised in that: described vertical
The length of long stake (6) is 50 meters, and the length of the vertical stub (7) is 20 meters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910598150.XA CN110172988A (en) | 2019-07-04 | 2019-07-04 | A kind of piling formula composite concrete placement ground and its construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910598150.XA CN110172988A (en) | 2019-07-04 | 2019-07-04 | A kind of piling formula composite concrete placement ground and its construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110172988A true CN110172988A (en) | 2019-08-27 |
Family
ID=67699728
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910598150.XA Pending CN110172988A (en) | 2019-07-04 | 2019-07-04 | A kind of piling formula composite concrete placement ground and its construction method |
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| Country | Link |
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| CN (1) | CN110172988A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110847215A (en) * | 2019-12-18 | 2020-02-28 | 长江勘测规划设计研究有限责任公司 | Full-paved long and short pile composite foundation-tube offshore wind power foundation and construction method |
| JP2021055347A (en) * | 2019-09-30 | 2021-04-08 | 大和ハウス工業株式会社 | Foundation structure and construction method therefor |
-
2019
- 2019-07-04 CN CN201910598150.XA patent/CN110172988A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021055347A (en) * | 2019-09-30 | 2021-04-08 | 大和ハウス工業株式会社 | Foundation structure and construction method therefor |
| CN110847215A (en) * | 2019-12-18 | 2020-02-28 | 长江勘测规划设计研究有限责任公司 | Full-paved long and short pile composite foundation-tube offshore wind power foundation and construction method |
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Application publication date: 20190827 |
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