CN105756078A - External expansion and lamination type digging and base-enlarging foundation and construction method thereof - Google Patents
External expansion and lamination type digging and base-enlarging foundation and construction method thereof Download PDFInfo
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- CN105756078A CN105756078A CN201610284990.5A CN201610284990A CN105756078A CN 105756078 A CN105756078 A CN 105756078A CN 201610284990 A CN201610284990 A CN 201610284990A CN 105756078 A CN105756078 A CN 105756078A
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- column
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- expansion head
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- 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
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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
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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
- E02D5/44—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with enlarged footing or enlargements at the bottom of the pile
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Abstract
The invention relates to an external expansion and lamination type digging and base-enlarging foundation and a construction method thereof. Compared with the prior art, the external expansion and lamination type digging and base-enlarging foundation and the construction method thereof disclosed by the invention solve the problem that pit walls have high probability of collapse in the construction process of the digging and base-enlarging foundation. An enlarged head of the external expansion and lamination type digging and base-enlarging foundation disclosed by the invention comprises an upper enlarged head and a lower enlarged head, wherein the upper enlarged head is obliquely mounted on the lower enlarged head; the outer wall of the lower enlarged head consists of a lower mortar layer and a lower brick layer which are sequentially arranged from outside to inside, the outer wall of the upper enlarged head consists of an upper mortar layer and an upper brick layer which are sequentially arranged from outside to inside, the upper mortar layer uses rock-soil mass on the outer side of the lower mortar layer as the slant gliding force exerting support, and the upper brick layer uses the jointing position of the lower mortar layer and the lower brick layer as slant gliding force exerting support. According to the external expansion and lamination type digging and base-enlarging foundation and the construction method thereof disclosed by the invention, the safety and the stability of the construction of the digging and base-enlarging foundation are guaranteed, the application range of the digging and base-enlarging foundation is extended, and the success rate of hole formation is guaranteed.
Description
Technical field
The present invention relates to transmission line tower foundation technical field, one extends out lamination type and draws and dig spread foundation and construction method thereof specifically.
Background technology
The stress of transmission line tower foundation has its industry characteristic, and pole and tower foundation not only to be limited by the effect of downforce in running, is additionally subjected to uplift force and the effect of two kinds of power of lateral moment of flexure.In the design work of pole and tower foundation, it is necessary to base form reasonable in design, while meeting bearing capacity, provide certain withdrawal resistance.As it is shown in figure 1, draw, to dig spread foundation be a kind of form therein.
Drawing and dig spread foundation and be widely used in High Voltage Transmission Line Engineering, its construction method is utilize the foundation ditch mechanically or manually directly dug in natural earth required for (brills) becomes, and framework of steel reinforcement and concrete is directly watered and forms in foundation ditch.This foundation pattern, by expanding bottom part aperture diameter, makes undisturbed soil that basis to be formed vertical constraint, thus the withdrawal resistance needed for basis is provided.This basis eliminates template and the operation of backfill soil, saves material, accelerates engineering construction progress, reduces cost.But this basis is in actual application, there is enlarged footing part and cheat the shortcoming that wall easily caves in when drawing and digging, the principle that hole wall caves in is as shown in Figure 2.Drawing and dig spread foundation and be relatively large in diameter owing to its expanded head part divides, the wall inclination angle, hole that reaming is formed is bigger.When cheating wall Rock And Soil cohesive strength and being bigger, it is ensured that its base expanding and base expanding effect；And when hole wall soil body cohesive strength is less or causes that under the effect of seasonal rainwater hole wall is soaked, hole wall will be occurred to cave in.Hole wall caves in and gently then makes basis to use, and causes engineering to waste；Heavy then injure the workman in operation at the bottom of hole by a crashing object, there is engineering safety accident, it directly affects the range of application of this foundation pattern.
At present, draw the straight hole part digging spread foundation and be generally adopted cement concrete and carry out retaining wall, and base expanding and base expanding is not partially due to without ripe construction technology, carry out retaining wall.This construction method significantly limit the use scope digging spread foundation of drawing, and draws the tower position digging spread foundation using simultaneously, and basis itself is susceptible to again the quality accidents that hole wall caves in.
Therefore, how to design a kind of brick retaining wall being exclusively used in electric power line pole tower to draw and dig spread foundation and have become as urgent need and solve the technical problem that.
Summary of the invention
The invention aims to solve prior art is drawn and dig spread foundation the defect that hole wall caves in easily occurs in work progress, it is provided that one extends out lamination type and draws and dig spread foundation and construction method thereof to solve the problems referred to above.
To achieve these goals, technical scheme is as follows:
One extends out lamination type and draws and dig spread foundation, and including column with expand head, column is arranged on above expansion head, and steel reinforcement cage is inserted in column and expands in head and fixed by concreting,
Described expansion head includes expansion head and lower expansion head, and upper expansion is diagonally-installed on lower expansion head；The outer wall of described lower expansion head is followed successively by lower screed and lower brick layer from outside to inside, the outer wall of described upper expansion head is followed successively by screed and upper brick layer from outside to inside, Rock And Soil outside the following screed of upper screed as its oblique downslide put forth effort support, the joining place of the following screed of upper brick layer and lower brick layer as its oblique downslide put forth effort support.
Described column is frustum cone structure.
Described lower screed is cement mortar, and the brick body of described lower brick layer is clay brick.
Described column includes bottom column and middle part column, and middle part column is diagonally-installed on the column of bottom；The outer wall of described bottom column is followed successively by screed A and brick layer A from outside to inside, the outer wall of described middle part column is followed successively by screed B and brick layer B from outside to inside, outside the above screed of screed A and upper screed the joining place of Rock And Soil as its oblique downslide put forth effort support, the joining place of the above screed of brick layer A and upper brick layer as its oblique downslide put forth effort support, screed B using the Rock And Soil outside screed A as its oblique downslide put forth effort support, brick layer B using the joining place of screed A and brick layer A for as its oblique downslide put forth effort support.
Described column also includes top column, and top column is diagonally-installed on the column of middle part；The outer wall of described top column be followed successively by from outside to inside screed C and brick layer C, screed C using the Rock And Soil outside screed B as its oblique downslide put forth effort support, brick layer C using the joining place of screed B and brick layer B as its oblique downslide put forth effort support.
The longitudinal length of described brick layer A is 115mm-345mm.
A kind of lamination type that extends out draws the construction method digging spread foundation, comprises the following steps:
The construction of column portion, is sequentially carried out the construction of top column, middle part column and bottom column；
The construction that expanded head part divides, is sequentially carried out expansion head and the construction of lower expansion head；
The construction procedure of upper expansion head includes: on the basis of bottom column, downward oblique reaming is deep-cut；Upper expansion head first uses along its sideline cement mortar retaining wall re-use clay brick blended cement mortar secondary and build retaining wall by laying bricks or stones, it is ensured that after clay brick forms arching each other, then carry out the construction of lower expansion head；
The construction procedure of lower expansion head includes: on the basis of upper expansion head, downward oblique reaming is deep-cut；Lower expansion head first uses along its sideline cement mortar retaining wall re-use clay brick blended cement mortar secondary and builds retaining wall by laying bricks or stones, the retaining wall clay brick of lower expansion head should with the hole of lower expansion head at the bottom of fit tightly；After the retaining wall clay of lower expansion head and cement mortar brick adhesion strength reach the curing age needed for design strength, putting into steel reinforcement cage, carry out concrete building, after meeting concrete maintaining age, come into operation in this basis.
The construction method of described top column comprises the following steps:
It is that benchmark carries out extending out oblique drawing and digs operation in tower leg Center stake position according to design stake footpath；
Dig after the degree of depth reaches 0.5m-1.5m wait drawing, first use cement mortar retaining wall to re-use clay brick blended cement mortar secondary at top column along its sideline and build retaining wall by laying bricks or stones, build the aperture of top column always by laying bricks or stones；
After adhesion strength until between the clay brick in column sideline, top reaches the curing age needed for design strength, oblique drawing digs reaming still further below, carries out the construction of middle part column.
Beneficial effect
The one of the present invention extends out lamination type and draws and dig spread foundation and construction method thereof, compared with prior art ensure that and draw the safety and stability digging spread foundation construction, expand and draw the use scope digging spread foundation, ensure that the success rate of pore-forming, decrease quality accidents, reduce construction costs.
Accompanying drawing explanation
Fig. 1 is the structural representation drawn and dig spread foundation of the prior art；
Fig. 2 draws the structural representation dug when spread foundation hole wall caves in prior art；
Fig. 3 is the structural representation of the present invention；
Fig. 4 is the structural representation of middle and upper part of the present invention column；
Fig. 5 is middle and upper part of the present invention column and the structural representation of middle part column portion；
The structural representation that Fig. 6 is central post of the present invention and expanded head part divides；
Fig. 7 is the structural representation after the present invention places steel reinforcement cage；
Wherein, 1-column, 2-expand bottom head, 3-Rock And Soil, 4-steel reinforcement cage, 5-concrete, 11-in the middle part of column, 12-under column, 13-top column, 111-screed A, 112-brick layer A, 121-screed B, 122-brick layer B, 131-screed C, 132-brick layer C, the upper screed of 211-, the upper brick layer of 212-, 221-brick layer under screed, 222-.
Detailed description of the invention
For making the architectural feature to the present invention and effect of reaching have a better understanding and awareness, coordinate detailed description in order to preferred embodiment and accompanying drawing, illustrate as follows:
Drawing dig spread foundation as it is shown on figure 3, one of the present invention extends out lamination type, including column 1 with expand 2, column 1 is arranged on above expansion 2 by the mode of prior art.Steel reinforcement cage 4 is inserted in column 1 and expansion 2 and builds fixing by concrete 5, thus basis of formation.
As shown in Figure 3 and Figure 6, expansion 2 includes expansion 21 and lower expansion 22, and upper expansion 21 is diagonally-installed in lower expansion 22, and upper expansion 21 is extend out formula on the basis of lower expansion 22, and upper expansion 21 is pressed in above lower expansion 22, cambium layer laminated structure.Lower expansion 22 is positioned at the orlop on whole basis, and the bottom of lower expansion 22 can adopt conventional foundation mode of the prior art, it is also possible to is directly installed on Rock And Soil 3.The outer wall of lower expansion 22 is followed successively by lower screed 221 and lower brick layer 222 from outside to inside, and lower screed 221 can be cement mortar, and the brick body of lower brick layer 222 can be clay brick.Namely close Rock And Soil 3 is lower screed 221, uses lower screed 221 to carry out retaining wall for Rock And Soil 3, re-uses lower brick layer 222 and lower screed 221 is carried out retaining wall.Equally, the outer wall of upper expansion 21 is followed successively by screed 211 and upper brick layer 212 from outside to inside.Owing to upper expansion 21 is diagonally-installed in lower expansion 22, both are for extending out lamination type, Rock And Soil 3 outside upper screed less than 211 screed 221 as its oblique downslide put forth effort support, namely the bottom going up screed 211 is positioned on the Rock And Soil 3 outside lower screed 221, and owing to upper screed 211 is oblique structure, the bottom therefore going up screed 211 is against on the Rock And Soil 3 outside lower screed 221.In like manner, the joining place of upper brick layer less than 212 screed 221 and lower brick layer 222 as its oblique downslide put forth effort support, the bottom of upper brick layer 212 is against lower screed 221 and the joining place of lower brick layer 222.Levels design by upper screed 211, upper brick layer 212 and lower screed 221, lower brick layer 222, it is achieved that upper 21 lamination in lower expansion 22 that expand, and owing to being pressed on lower expansion 22 under upper expansion 21 dislocation, also form extending out in structure.
As shown in Fig. 3, Fig. 4 and Fig. 5, column 1 is frustum cone structure, i.e. up-narrow and down-wide structure.Column 1 includes bottom column 11 and middle part column 12, and middle part column 12 is diagonally-installed on bottom column 11, and bottom column 11 and middle part column 12 are also formed and extend out lamination type.In like manner, the outer wall of bottom column 11 is followed successively by screed A111 and brick layer A112 from outside to inside, and the outer wall of middle part column 12 is followed successively by screed B121 and brick layer B122 from outside to inside.Bottom this, column more than 11 expansion 21 is lower support, outside the above screed of screed A111 211 and upper screed 211 joining place of Rock And Soil 3 as its oblique downslide put forth effort support, the joining place of the above screed of brick layer A112 211 and upper brick layer 212 as its oblique downslide put forth effort support, therefore, bottom column 11 defines extending out and lamination in structure based on upper expansion 21.In like manner, screed B121 using the Rock And Soil 3 outside screed A111 as its oblique downslide put forth effort support, brick layer B122 using the joining place of screed A111 and brick layer A112 for as its oblique downslide put forth effort support, therefore, middle part column 12 defines extending out and lamination in structure based on bottom column 11.At this, the longitudinal length of brick layer A112 can be 115mm-345mm, and namely brick layer A112 can be made up of 1-5 block brick superposition.
According to digging in-situ needs, column 1 can also include top column 13, and top column 13 is diagonally-installed on middle part column 12, and top column 13 is formed based on middle part column 12 and extends out lamination type.In like manner, the outer wall of top column 13 is followed successively by screed C131 and brick layer C132 from outside to inside, screed C131 using the Rock And Soil 3 outside screed B121 as its oblique downslide put forth effort support, brick layer C132 using the joining place of screed B121 and brick layer B122 as its oblique downslide put forth effort support.
Also providing for a kind of lamination type that extends out at this and draw the construction method digging spread foundation, in construction method of the present invention, first carry out the excavation construction of column 1 part, then carry out expanding the excavation construction of 2 part, it comprises the following steps:
The first step, the construction of column 1 part, it is sequentially carried out the construction of top column 13, middle part column 12 and bottom column 11.Owing to top column 13, middle part column 12 are all identical with the structure of bottom column 11, the construction method of top column 13 is elaborated at this, middle part column 12 and bottom column 11 carry out with reference to the construction method of top column 13, and namely middle part column 12 is identical with the construction method of top column 13 with the construction method of bottom column 11.
As shown in Figure 4, the construction method of top column 13 comprises the following steps:
(1) be that benchmark carries out extending out oblique drawing and digs operation in tower leg Center stake position according to design stake footpath, the concrete size extended out according to implementing on-site soil environment, required withdrawal resistance calculates by calculation of the prior art.
(2) dig after the degree of depth reaches 0.5m-1.5m wait drawing, first use cement mortar retaining wall to re-use clay brick blended cement mortar secondary at top column 13 along its sideline and build retaining wall by laying bricks or stones, build the aperture of top column 13 always by laying bricks or stones.
(3) after the curing age needed for the adhesion strength between the clay brick in top column 13 sideline reaches design strength, oblique drawing digs reaming still further below, carries out the construction of middle part column 12.
Second step, expands the construction of 2 part, after bottom column 11 has been constructed, is sequentially carried out expansion 21 and the construction of lower expansion 22.
(1) construction procedure of upper expansion 21 includes: on the basis of bottom column 11, downward oblique reaming is deep-cut.Equally, upper expansion 21 first uses along its sideline cement mortar retaining wall re-use clay brick blended cement mortar secondary and build retaining wall by laying bricks or stones, it is ensured that after clay brick forms arching each other, then carry out the construction of lower expansion 22.
(2) under, the construction procedure of expansion 22 includes: on the basis of upper expansion 21, downward oblique reaming is deep-cut.Equally, lower expansion 22 first uses along its sideline cement mortar retaining wall re-use clay brick blended cement mortar secondary and builds retaining wall by laying bricks or stones, the retaining wall clay brick of lower expansion 22 should with the hole of lower expansion 22 at the bottom of fit tightly.After the retaining wall clay of lower expansion 22 and cement mortar brick adhesion strength reach the curing age needed for design strength, putting into steel reinforcement cage 4, carry out building of concrete 5, meet after concrete 5 maintains age, comes into operation in this basis.
The ultimate principle of the present invention, principal character and advantages of the present invention have more than been shown and described.Skilled person will appreciate that of the industry; the present invention is not restricted to the described embodiments; simply principles of the invention described in above-described embodiment and description; the present invention also has various changes and modifications without departing from the spirit and scope of the present invention, and these changes and improvements both fall within claimed the scope of the present invention.The protection domain of application claims is defined by appending claims and equivalent thereof.
Claims (8)
1. extending out lamination type to draw and dig a spread foundation, including column (1) with expand head (2), column (1) is arranged on expansion head (2) top, and steel reinforcement cage (4) is inserted in column (1) and expands in head (2) and pass through concrete (5) and builds fixing, it is characterised in that:
Described expansion head (2) includes expansion head (21) and lower expansion head (22), and upper expansion head (21) is diagonally-installed on lower expansion head (22)；The outer wall of described lower expansion head (22) is followed successively by lower screed (221) and lower brick layer (222) from outside to inside, the outer wall of described upper expansion head (21) is followed successively by screed (211) and upper brick layer (212) from outside to inside, upper screed (211) following screed (221) outside Rock And Soil (3) as its oblique downslide put forth effort support, the joining place of upper brick layer (212) following screed (221) and lower brick layer (222) as its oblique downslide put forth effort support.
2. one according to claim 1 extends out lamination type and draws and dig spread foundation, it is characterised in that: described column (1) is frustum cone structure.
3. one according to claim 1 extends out lamination type and draws and dig spread foundation, it is characterised in that: described lower screed (221) is cement mortar, and the brick body of described lower brick layer (222) is clay brick.
4. one according to claim 1 extends out lamination type and draws and dig spread foundation, it is characterised in that: described column (1) includes bottom column (11) and middle part column (12), and middle part column (12) is diagonally-installed on bottom column (11)；nullThe outer wall of described bottom column (11) is followed successively by screed A(111 from outside to inside) and brick layer A(112)，The outer wall at described middle part column (12) is followed successively by screed B(121 from outside to inside) and brick layer B(122)，Screed A(111) above screed (211) and upper screed (211) outside Rock And Soil (3) joining place as its oblique downslide put forth effort support，Brick layer A(112) above screed (211) and upper brick layer (212) joining place as its oblique downslide put forth effort support，Screed B(121) using screed A(111) Rock And Soil (3) in outside as its oblique downslide put forth effort support，Brick layer B(122) using screed A(111) with brick layer A(112) joining place for as its oblique downslide put forth effort support.
5. one according to claim 4 extends out lamination type and draws and dig spread foundation, it is characterised in that: described column (1) also includes top column (13), and top column (13) is diagonally-installed on middle part column (12)；The outer wall on described top column (13) is followed successively by screed C(131 from outside to inside) and brick layer C(132), screed C(131) using screed B(121) Rock And Soil (3) in outside as its oblique downslide put forth effort support, brick layer C(132) using screed B(121) with brick layer B(122) joining place as its oblique downslide put forth effort support.
6. one according to claim 4 extends out lamination type and draws and dig spread foundation, it is characterised in that: longitudinal length described brick layer A(112) is 115mm-345mm.
7. a kind of lamination type that extends out according to claim 5 draws the construction method digging spread foundation, it is characterised in that comprise the following steps:
71) construction of column (1) part, is sequentially carried out the construction of top column (13), middle part column (12) and bottom column (11)；
72) expand the construction of head (2) part, be sequentially carried out expansion head (21) and the construction of lower expansion head (22)；
The construction procedure of upper expansion head (21) including: on the basis of bottom column (11), downward oblique reaming is deep-cut；Upper expansion head (21) first uses along its sideline cement mortar retaining wall re-use clay brick blended cement mortar secondary and build retaining wall by laying bricks or stones, it is ensured that after clay brick forms arching each other, then carry out the construction of lower expansion head (22)；
The construction procedure of lower expansion head (22) including: on the basis of upper expansion head (21), downward oblique reaming is deep-cut；Lower expansion head (22) first uses along its sideline cement mortar retaining wall re-use clay brick blended cement mortar secondary and builds retaining wall by laying bricks or stones, the retaining wall clay brick of lower expansion head (22) should with the hole of lower expansion head (22) at the bottom of fit tightly；After the retaining wall clay of lower expansion head (22) and cement mortar brick adhesion strength reach the curing age needed for design strength, putting into steel reinforcement cage (4), carry out building of concrete (5), after meeting concrete (5) maintenance age, come into operation in this basis.
8. a kind of lamination type that extends out according to claim 7 draws the construction method digging spread foundation, it is characterised in that the construction method on described top column (13) comprises the following steps:
81) it is that benchmark carries out extending out oblique drawing and digs operation in tower leg Center stake position according to design stake footpath；
82) dig after the degree of depth reaches 0.5m-1.5m wait drawing, first use cement mortar retaining wall to re-use clay brick blended cement mortar secondary at top column (13) along its sideline and build retaining wall by laying bricks or stones, build the aperture of top column (13) always by laying bricks or stones；
83) after the adhesion strength between the clay brick in top column (13) sideline reaches the curing age needed for design strength, oblique drawing digs reaming still further below, carries out the construction at middle part column (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610284990.5A CN105756078B (en) | 2016-04-27 | 2016-04-27 | One kind extends out lamination type and draws digging spread foundation and its construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610284990.5A CN105756078B (en) | 2016-04-27 | 2016-04-27 | One kind extends out lamination type and draws digging spread foundation and its construction method |
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| CN105756078A true CN105756078A (en) | 2016-07-13 |
| CN105756078B CN105756078B (en) | 2018-06-19 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622215A (en) * | 2020-06-05 | 2020-09-04 | 宁波市鄞州建筑有限公司 | Building pile foundation construction method |
| CN113445510A (en) * | 2021-08-06 | 2021-09-28 | 江苏兰馨园林有限公司 | Method for opening high-compactness building foundation pit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1111308A (en) * | 1993-06-18 | 1995-11-08 | 孟凡林 | Design and construction method for large calibre poured pile and large-diameter bottom-enlarging pier |
| CN2871648Y (en) * | 2005-12-02 | 2007-02-21 | 郑百翔 | Manhole-pile expanding head |
| CN203440814U (en) * | 2013-09-13 | 2014-02-19 | 湖北省工业建筑集团有限公司 | Manually excavated pile structure |
| CN104343130A (en) * | 2013-07-25 | 2015-02-11 | 五冶集团上海有限公司 | Large-diameter manual hole digging expanded base pile foundation construction method |
| CN204570667U (en) * | 2015-01-05 | 2015-08-19 | 江苏建筑职业技术学院 | Hand excavated pile aperture safety device |
| CN205636774U (en) * | 2016-04-27 | 2016-10-12 | 中国能源建设集团安徽省电力设计院有限公司 | It draws to dig and expands subbottom plinth to expand lamination formula outward |
-
2016
- 2016-04-27 CN CN201610284990.5A patent/CN105756078B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1111308A (en) * | 1993-06-18 | 1995-11-08 | 孟凡林 | Design and construction method for large calibre poured pile and large-diameter bottom-enlarging pier |
| CN2871648Y (en) * | 2005-12-02 | 2007-02-21 | 郑百翔 | Manhole-pile expanding head |
| CN104343130A (en) * | 2013-07-25 | 2015-02-11 | 五冶集团上海有限公司 | Large-diameter manual hole digging expanded base pile foundation construction method |
| CN203440814U (en) * | 2013-09-13 | 2014-02-19 | 湖北省工业建筑集团有限公司 | Manually excavated pile structure |
| CN204570667U (en) * | 2015-01-05 | 2015-08-19 | 江苏建筑职业技术学院 | Hand excavated pile aperture safety device |
| CN205636774U (en) * | 2016-04-27 | 2016-10-12 | 中国能源建设集团安徽省电力设计院有限公司 | It draws to dig and expands subbottom plinth to expand lamination formula outward |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111622215A (en) * | 2020-06-05 | 2020-09-04 | 宁波市鄞州建筑有限公司 | Building pile foundation construction method |
| CN113445510A (en) * | 2021-08-06 | 2021-09-28 | 江苏兰馨园林有限公司 | Method for opening high-compactness building foundation pit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105756078B (en) | 2018-06-19 |
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