CN108677933A - A kind of transmission line of electricity under swelled ground geological conditions subtracts swollen bored concrete pile foundation - Google Patents
A kind of transmission line of electricity under swelled ground geological conditions subtracts swollen bored concrete pile foundation Download PDFInfo
- Publication number
- CN108677933A CN108677933A CN201810531868.2A CN201810531868A CN108677933A CN 108677933 A CN108677933 A CN 108677933A CN 201810531868 A CN201810531868 A CN 201810531868A CN 108677933 A CN108677933 A CN 108677933A
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- Prior art keywords
- transmission line
- pile body
- swollen
- bored concrete
- subtracts
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/385—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes
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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
- E02D31/14—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 frost heaves in soil
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
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- Engineering & Computer Science (AREA)
- Structural Engineering (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)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention belongs to electric transmission line erection basic technology fields, transmission line of electricity under especially a kind of swelled ground geological conditions subtracts swollen bored concrete pile foundation, including ground pile body and underground pile body, the top setting of the underground pile body subtracts swollen layer, and the joint face subtracted between swollen layer and underground pile body is wave structure.The present invention is not necessarily to carry out the soil improvement of basal perimeter, basis is without penetrating expansion soil layer, can dissolve is influenced due to the characteristic of swell deformation of expansive soil encountered with water and dehydration shrinkage caused by the stabilization of transmission line of electricity bored concrete pile foundation, while significantly reducing project cost, also minimize influence of the engineering construction to environment.
Description
Technical field
The invention belongs to electric transmission line erection basic technology field, the power transmission line under especially a kind of swelled ground geological conditions
Road subtracts swollen bored concrete pile foundation.
Background technology
Swelled ground is a kind of cohesive soil with two kinds of deformation characteristics of significant water swelling and dehydration shrinkage, is applied to engineering
Work and the stabilizing influence of building foundation are very big, " cancer " being referred to as in basement process, the transmission of electricity under swelled ground geological conditions
Once there is basis drift, tilted in overhead line structures basis, and has eventually led to basis and has scrapped, and such as improper conduct oneself well is set, and will give transmission of electricity
Very big hidden danger is buried in the safe operation of circuit.Generally using the soil improving method for changing soil structures in previous engineering（Addition life
Lime）, increase grout pile length to penetrate the scheme of expansion soil layer, the wherein scheme of soil improvement is not only time-consuming and right
The environment of surrounding causes larger destruction；Increasing the long scheme of stake then dramatically increases the cost of engineering, especially expands soil layer
Thicker area, expense increase more obvious.
Application publication number CN107806107A discloses a kind of soft clay area building basis, between floors portion's arrangement length
Stake comes control settlement, the method that bearing capacity uses long stake and stub shared；Settlement Control core band is used as in the middle part of building,
Long stake enters the deep layer hard soil in the region, and the raft plate of long stake layout area is reinforced, which is arch；It is long
Stake is coupled between raft foundation by anchor bar, and the length that stub anchor bar anchors into raft foundation is 700~800mm,
Stub preformed hole is closed using expansive concrete.Although bearing capacity is used 2 shared of long stake 3 and stub by the structure,
But structure straight down can not eliminate weak soil and affect.
Authorization Notice No. CN101451356B discloses a kind of suitable for foundation, ground collapse, gold mine ore dressing and environmental protection
The five in one pre-expansion ecological pile body Ground Treatment method of field construction application, after ground inner hole into hole filler, will
The five in one for being rushed, pound, squeezing, press, splitting with filler in over pressure kinetic force device to hole in hammer body penetration hole it is vertical and lateral
Pre-expansion squeeze transmit promote dynamic consolidation, be repeated again by multiple filler and with over pressure kinetic energy hammer body thereafter punching,
The vertical and lateral pre-expansion pounding, squeeze, pressing, splitting, which squeezes to transmit, promotes strong rammer bore forming, and finally obtained high-bearing capacity is pre- swollen
Deep foundation, Idiotype pile foundation and the pre-expansion ecological pile body of the composite foundation of swollen ecological pile body.The structure is disadvantageous in that：
Although pre-expansion ecological stake can be produced, complex manufacturing process, and also the field operation period is long, bad practicality.
Invention content
In view of this, in view of the deficiencies of the prior art, it is an object of the present invention to provide under a kind of swelled ground geological conditions
Transmission line of electricity subtracts swollen bored concrete pile foundation, and without carrying out the soil improvement of basal perimeter, basis is without penetrating expansion soil layer, so that it may
With neutralizing since the characteristic of swell deformation of expansive soil encountered with water and dehydration shrinkage is influenced caused by the stabilization of transmission line of electricity bored concrete pile foundation,
While significantly reducing project cost, also minimize influence of the engineering construction to environment.
In order to achieve the above objectives, the present invention uses following technical scheme：
A kind of transmission line of electricity under swelled ground geological conditions subtracts swollen bored concrete pile foundation, including ground pile body and underground pile body, described
The top setting of underground pile body subtracts swollen layer, and the joint face subtracted between swollen layer and underground pile body is wave structure.
Further, the length for subtracting swollen layer is more than the atmospheric effect layer depth of region.
Further, described to subtract swollen layer as cast-in-place pitch or the rubber that blocks water.
Further, step-like protrusion is arranged in the lower part of the underground pile body.
Further, the circumferentially disposed multiple connectors in the lower part of the underground pile body, hinged hangnail bar on the connector,
Multiple fanning strips are arranged in the hangnail bar from bottom to top, and the axis of fanning strip and hangnail bar is mutually perpendicular to, the multiple fanning strip
Spatially interleaved setting.
The above-mentioned production method for subtracting swollen bored concrete pile foundation, includes the following steps：
1）Wiretie cage, general and the welded connections on steel reinforcement cage；
2）Ground pile body forming panel and the body formed template of underground pile are assembled, the top of the body formed template of underground pile is ripple
Shape structure, the reserved hole for making connector leak outside in lower part of the body formed template of underground pile；
3）Steel reinforcement cage is put into template, and cast-in-place concrete is molded；
4）After concrete initial set, before final set, forming panel is removed, is set in the external gusset of the underground pile of wave structure and subtracts swollen layer
Template, and subtracting cast-in-place pitch or the rubber layer that blocks water in swollen layer.
The beneficial effects of the invention are as follows：
1. studying for a long period of time discovery through applicant, in order to avoid the characteristic due to swell deformation of expansive soil encountered with water, dehydration shrinkage, to power transmission line
The stabilization of road bored concrete pile foundation impacts, and so as to cause basic unstability, drift, on the top of underground pile body, setting subtracts the present invention
Swollen layer, it is wave structure to subtract the joint face between swollen layer and underground pile body, is meeting what water generated to buffer swelled ground
Expansive force, without carrying out the soil improvement of basal perimeter, basis is without penetrating expansion soil layer, so that it may to dissolve due to swelled ground
The characteristic of water-swellable and dehydration shrinkage is influenced caused by the stabilization of transmission line of electricity bored concrete pile foundation；Meanwhile by subtracting swollen layer
The recovery of elasticity, in turn avoids swelled ground in the case of dehydration shrinkage, caused by due to the soil body and bored concrete pile foundation stripping
The problem of foundation bearing capacity declines effectively raises stability and the safety on basis.
2. the swollen layer that subtracts of the present invention uses pitch or the rubber material that blocks water, there is Corrosion Protection, and avoid swelled ground
Influence of the decline of bearing capacity in the case of dehydration to basis..
3. in the geological environment of swelled ground, climate influenced layer refer under natural climate effect, by precipitation, evaporation,
The factors such as ground temperature cause the effective depth of the lifting deformation of soil, the present invention that will subtract the Design of length of swollen layer at more than region
Atmospheric effect layer depth effectively overcomes climate influenced layer to be influenced caused by basis.
4. step-like protrusion is arranged in the lower part of underground pile body, this structure design can increase between underground pile body and soil
Contact area improves the stability during use of the present invention.
5. the circumferentially disposed multiple connectors in the lower part of underground pile body, hinged hangnail bar on connector, hangnail bar is from bottom to top
Multiple fanning strips, multiple spatially interleaved settings of fanning strip are vertically arranged, the structure design of multiple fanning strips further increases
The stability of lower part of the present invention improves the extraction-resistant behavior of the present invention, the structure design for step-like protrusion of arranging in pairs or groups, soft expanding
Using effect is more preferably in soil property environment.
6. what the present invention used subtracts the production method of swollen bored concrete pile foundation, include the following steps：
1）Wiretie cage, general and the welded connections on steel reinforcement cage；
2）Ground pile body forming panel and the body formed template of underground pile are assembled, the top of the body formed template of underground pile is ripple
Shape structure, the reserved hole for making connector leak outside in lower part of the body formed template of underground pile；
3）Steel reinforcement cage is put into template, and cast-in-place concrete is molded；
4）After concrete initial set, before final set, forming panel is removed, is set in the external gusset of the underground pile of wave structure and subtracts swollen layer
Template, and subtracting cast-in-place pitch or the rubber layer that blocks water in swollen layer.
Description of the drawings
Fig. 1 is the structural schematic diagram that embodiment one subtracts swollen bored concrete pile foundation；
Fig. 2 is the cross-sectional view that embodiment one subtracts swollen bored concrete pile foundation；
Fig. 3 is the structural schematic diagram that embodiment two subtracts swollen bored concrete pile foundation.
Figure label：The grounds 1- pile body, the undergrounds 2- pile body, 3- subtract swollen layer, 4- connectors, 5- hangnail bars, 6- fanning strips, 7-
Step-like protrusion.
Specific implementation mode
The invention will be further described with reference to the accompanying drawings and examples.
As shown in Figs. 1-2, the transmission line of electricity that the present invention discloses under a kind of swelled ground geological conditions subtracts swollen bored concrete pile foundation, wraps
Ground pile body 1 and underground pile body 2 are included, the top setting of underground pile body 2 subtracts swollen layer 3, subtracts the company between swollen layer 3 and underground pile body 2
Junction is wave structure, and the length for subtracting swollen layer 3 is more than the atmospheric effect layer depth of region, and it is cast-in-place pitch to subtract swollen layer 3
Or the rubber that blocks water.
Embodiment two
As shown in figure 3, U-shaped board, connector 4 may be used in the circumferentially embedded multiple connectors 4 in the lower part of underground pile body 2, connector 4
Upper to be hinged hangnail bar 5, hangnail bar 5 is vertically arranged multiple fanning strips 6 from bottom to top, the 6 spatially interleaved setting of multiple fanning strips,
The preferred helical form of the present embodiment, the lower part setting step-like raised 7 of underground pile body 2.
The above-mentioned production method for subtracting swollen bored concrete pile foundation, includes the following steps：
1）Wiretie cage, general and the welded connections on steel reinforcement cage；
2）Ground pile body forming panel and the body formed template of underground pile are assembled, the top of the body formed template of underground pile is ripple
Shape structure, the reserved hole for making connector leak outside in lower part of the body formed template of underground pile；
3）Steel reinforcement cage is put into template, and cast-in-place concrete is molded；
4）After concrete initial set, before final set, forming panel is removed, is set in the external gusset of the underground pile of wave structure and subtracts swollen layer
Template, and subtracting cast-in-place pitch or the rubber layer that blocks water in swollen layer.
Finally illustrate, the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, this field is common
Other modifications or equivalent replacement that technical staff makes technical scheme of the present invention, without departing from technical solution of the present invention
Spirit and scope, be intended to be within the scope of the claims of the invention.
Claims (5)
1. the transmission line of electricity under a kind of swelled ground geological conditions subtracts swollen bored concrete pile foundation, including ground pile body and underground pile body,
It is characterized in that：The top setting of the underground pile body subtracts swollen layer, and the joint face subtracted between swollen layer and underground pile body is ripple
Shape structure.
2. the transmission line of electricity under a kind of swelled ground geological conditions according to claim 1 subtracts swollen bored concrete pile foundation, feature
It is：The length for subtracting swollen layer is more than the atmospheric effect layer depth of region.
3. the transmission line of electricity under a kind of swelled ground geological conditions according to claim 1 subtracts swollen bored concrete pile foundation, feature
It is：It is described to subtract swollen layer as cast-in-place pitch or the rubber that blocks water.
4. the transmission line of electricity under a kind of swelled ground geological conditions according to claim 1 subtracts swollen bored concrete pile foundation, feature
It is：Step-like protrusion is arranged in the lower part of the underground pile body.
5. the transmission line of electricity under a kind of swelled ground geological conditions according to claim 1 subtracts swollen bored concrete pile foundation, feature
It is：The circumferentially disposed multiple connectors in lower part of the underground pile body, hinged hangnail bar on the connector, the hangnail bar from
The multiple fanning strips of lower and upper setting, the axis of fanning strip and hangnail bar are mutually perpendicular to, and the multiple fanning strip is spatially interleaved
Setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810531868.2A CN108677933A (en) | 2018-05-29 | 2018-05-29 | A kind of transmission line of electricity under swelled ground geological conditions subtracts swollen bored concrete pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810531868.2A CN108677933A (en) | 2018-05-29 | 2018-05-29 | A kind of transmission line of electricity under swelled ground geological conditions subtracts swollen bored concrete pile foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108677933A true CN108677933A (en) | 2018-10-19 |
Family
ID=63808776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810531868.2A Pending CN108677933A (en) | 2018-05-29 | 2018-05-29 | A kind of transmission line of electricity under swelled ground geological conditions subtracts swollen bored concrete pile foundation |
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| Country | Link |
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| CN (1) | CN108677933A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029665A (en) * | 2019-05-27 | 2019-07-19 | 西安工业大学 | Resist the mini pile pile foundation and its construction method of the bad engineering characteristic of expansive soil foundation |
| CN115419056A (en) * | 2022-09-08 | 2022-12-02 | 中铁二院工程集团有限责任公司 | Reinforcing structure for resisting foundation expansion and contraction deformation and design method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6010016A (en) * | 1983-06-29 | 1985-01-19 | Nippon Kokan Kk <Nkk> | Freezing damage preventive pile |
| CN1254043A (en) * | 1999-09-29 | 2000-05-24 | 杜新智 | Three-winged reducing club-footed pile, its construction method and special-purpose equipment |
| CN105428835A (en) * | 2014-09-18 | 2016-03-23 | 国家电网公司 | Point type grounding apparatus of electric power rod in urban area |
| CN105870651A (en) * | 2016-06-01 | 2016-08-17 | 国家电网公司 | Power earthing device |
-
2018
- 2018-05-29 CN CN201810531868.2A patent/CN108677933A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6010016A (en) * | 1983-06-29 | 1985-01-19 | Nippon Kokan Kk <Nkk> | Freezing damage preventive pile |
| CN1254043A (en) * | 1999-09-29 | 2000-05-24 | 杜新智 | Three-winged reducing club-footed pile, its construction method and special-purpose equipment |
| CN105428835A (en) * | 2014-09-18 | 2016-03-23 | 国家电网公司 | Point type grounding apparatus of electric power rod in urban area |
| CN105870651A (en) * | 2016-06-01 | 2016-08-17 | 国家电网公司 | Power earthing device |
Non-Patent Citations (1)
| Title |
|---|
| 王士杰等: "《基础工程》", 31 July 2008, 中国农业出版社 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029665A (en) * | 2019-05-27 | 2019-07-19 | 西安工业大学 | Resist the mini pile pile foundation and its construction method of the bad engineering characteristic of expansive soil foundation |
| CN110029665B (en) * | 2019-05-27 | 2024-03-08 | 西安工业大学 | Miniature pile foundation for resisting bad engineering characteristics of expansive soil foundation and construction method thereof |
| CN115419056A (en) * | 2022-09-08 | 2022-12-02 | 中铁二院工程集团有限责任公司 | Reinforcing structure for resisting foundation expansion and contraction deformation and design method |
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Application publication date: 20181019 |
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| RJ01 | Rejection of invention patent application after publication |