CN109162283A - A kind of reinforced cement-soil pile anchor support and its construction equipment and construction method - Google Patents
A kind of reinforced cement-soil pile anchor support and its construction equipment and construction method Download PDFInfo
- Publication number
- CN109162283A CN109162283A CN201811039381.9A CN201811039381A CN109162283A CN 109162283 A CN109162283 A CN 109162283A CN 201811039381 A CN201811039381 A CN 201811039381A CN 109162283 A CN109162283 A CN 109162283A
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- China
- Prior art keywords
- concrete
- drilling
- slurry
- reinforced cement
- pile
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
-
- 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
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the 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
- E02D5/54—Piles with prefabricated supports or anchoring parts; Anchoring piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2250/00—Production methods
- E02D2250/003—Injection of material
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2300/00—Materials
- E02D2300/0004—Synthetics
- E02D2300/0018—Cement used as binder
- E02D2300/002—Concrete
Abstract
The invention discloses a kind of reinforced cement-soil pile anchor support and its construction equipment and construction method, which includes vertical anchoring pile and oblique anchoring pile, and the top cross contact of the vertical anchoring pile and oblique anchoring pile is fixed and is provided with capping beam.The construction equipment includes drilling machine and pump machine, and the drilling machine includes power head and drilling rod, and power head can drive drilling rod to rotate, and the axial centre of the drilling rod is arranged to hollow shape, and drilling rod bottom is provided with grout outlet.The construction method includes label punch position；Positional punch equipment；Slurry configurations；Send slurry；Drilling, slip casting and maintenance.Construction method of the present invention is quick, is not influenced by external climate, obtained reinforced cement-soil pile anchor support stabilized structure.
Description
Technical field
The present invention relates to a kind of reinforced cement-soil pile anchor support and its construction equipment and construction methods, belong to Building technology neck
Domain.
Background technique
China due to expanding economy, had built a considerable number of skyscraper in recent years, and the basis of skyscraper is buried
Deep generally large, embedded depth of foundation increases, to the stability for increasing building and the function for making full use of the underground space, improving building
It can be advantageous.But embedded depth of foundation increases and brings many difficulties to construction, especially in City Building dense region, field of constructing
Ground is criss-cross adjacent to existing building, road and underground utilities, therefore, the supporting of excavation slope at deep foundation pit construction heat
Point and difficulties.
Although supporting construction is the interim retaining structure of construction period, whether its type selecting, calculating and construction are correct, to applying
Safety, duration and the economic benefit of work have tremendous influence.Current most of engineerings are still with SMW engineering method fashioned iron soil cement composite stirring
A large amount of type steel support is used based on pile constructing process.It is long that this method builds the time, and built on the sand, and there are security risk, costs
It is high.
Summary of the invention
To solve the above problems, the invention discloses a kind of reinforced cement-soil pile anchor support and its construction equipments
And construction method, specific technical solution are as follows:
It hands at the top of a kind of reinforced cement-soil pile anchor support, including vertical anchoring pile and oblique anchoring pile, the vertical anchoring pile and oblique anchoring pile
Fork-join touching is fixed, and is provided with capping beam at the top of the vertical anchoring pile and oblique anchoring pile, the capping beam is flushed with ground.
The vertical anchoring pile includes the vertical column of concrete, and the axial centre of the vertical column of concrete, which runs through, steel strand wires,
The top of the steel strand wires is stretched out from the vertical column of concrete,
The oblique anchoring pile includes concrete tilt stake, and through there is steel strand wires, which twists the axial centre of the concrete tilt stake
The top of line is stretched out from concrete tilt column.
A kind of construction equipment of reinforced cement-soil pile anchor support, including drilling machine and pump machine, the drilling machine include power head and
Drilling rod, the power head are located at drilling rod close to top position, and power head can drive drilling rod to rotate, the axial centre of the drilling rod
It is arranged to hollow shape, the top of the drilling rod is connected with high-voltage tube by rotary joint, and the high-voltage tube is connected to drilling rod, institute
The other end connection pump machine of high-voltage tube is stated, the pump machine connect with prepared concrete grout material pond or concrete grout charging basket, uses
It is pumped into drilling rod in by concrete slurry.
The bottom of the drilling rod is arranged to cone shape, and the surrounding in cylindrical shape surrounding and drilling rod bottom is set
It is equipped with external screw thread；Grout outlet is provided between externally threaded screw thread, grout outlet is tilted towards counter clockwise direction.
A kind of construction method of reinforced cement-soil pile anchor support, including following operating procedure:
Step 1: label punch position: according to site operation needs, the position that planning needs to punch well in construction ground, and
Carry out stake position label in the position for needing to punch；
Step 2: positional punch equipment: by drilling-machine shifter to specified stake position mark position, the drilling rod of drilling machine is vertically suspended from stake position
The top of label；
Step 3: slurry configurations: concrete batching slurry；
Step 4: sending slurry: the concrete slurry prepared being transported in concrete grout material pond or concrete grout charging basket, cement slurry
After being sieved through filter, slurry bucket is poured into, slurry pump is started, slurries are sent to stirring-head；
Step 5: drilling, slip casting: starting drilling machine, in stake position, mark position drills vertically downward, after being bored into scheduled depth, to
In upper lifting process, towards concrete slurry is injected in drilling, after drilling rod is promoted, concrete grout is filled in drilling
Material before concrete slurry in the borehole does not solidify, is inserted into steel strand wires；
Step 6: maintenance: capping beam is arranged in the top of the concrete-pile formed in the borehole, and after the completion of maintenance, steel is twisted for maintenance
Line lock forms reinforced cement earth stake on the top of capping beam.
In the step 5, when drilling straight down, the diameter up and down that drills is consistent；
The mass ratio of water and concrete grey is 1.5~2:1 in the step 3.
In the step 5, when drilling diagonally downward, coagulation soil ball is formed on the bottom of drilling, and the diameter of coagulation soil ball is greater than
The diameter of inclined drill；
The mass ratio of water and concrete grey is 0.7~1.0:1 in the step 3.
Drilling tool lifting speed is not more than 2m/min in the step 5, and settling velocity degree is not more than 1m/min.
Using the method concrete batching slurry of stirring in the step 3, helical blade stirrer, mixing speed 16 are selected
R/min~35r/min；The pressure of helical blade jet mixing is 10~18MPa.
The adjacent reinforced cement earth pile driving construction keeps continuity, and adjacent reinforced cement earth pile driving construction interval must not exceed
12h, when construction, stop to starch for some reason, before restoring slurry, by grouting stirring is constructed again after 0.5 meter of drilling rod lifting or sinking
The beneficial effects of the present invention are:
The present invention can quickly carry out supporting construction, and the period is short, and supporting construction is stablized, and has a safety feature, cost controls well.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of vertical direction of the invention,
Fig. 2 is top view of the invention,
Reference signs list: 1-vertical anchoring pile, 2-steel strand wires, 3-capping beams, 4-oblique anchoring piles.
Specific embodiment
With reference to the accompanying drawings and detailed description, the present invention is furture elucidated.It should be understood that following specific embodiments are only
For illustrating the present invention rather than limiting the scope of the invention.
Fig. 1 is structural schematic diagram of the invention, in conjunction with attached drawing as it can be seen that this reinforced cement-soil pile anchor support, including Vertical Anchor
The top cross of stake 1 and oblique anchoring pile 4, the vertical anchoring pile 1 and oblique anchoring pile 4, which contacts, to be fixed, the vertical anchoring pile 1 and oblique anchoring pile 4
Top be provided with capping beam 3, the capping beam 3 is flushed with ground.Structure of the invention is being pushed up by vertical anchoring pile and oblique anchoring pile
Portion's cross-contact supporting, stable structure have good anti-pressure ability.
The vertical anchoring pile includes the vertical column of concrete, and the axial centre of the vertical column of concrete, which runs through, steel strand wires 2,
The top of the steel strand wires 2 is stretched out from the vertical column of concrete, and the oblique anchoring pile includes concrete tilt stake, the concrete tilt
The axial centre of stake through there is steel strand wires 2, stretch out from concrete tilt column by the top of the steel strand wires 2.By perpendicular in concrete
It is inserted into steel strand wires 2 in right cylinder or concrete tilt column, improves its strength character, it is ensured that structure safety and firmness.
The construction method of the vertical anchoring pile supporting of reinforced cement earth, comprising the following steps:
(1) it positions: opening dynamic triaxial blender and move on to finger fixed pile, centering, stake position deviations are no more than 5cm.Pile position deviation one
As no more than 2.0cm, agitating shaft perpendicularity deviation is no more than 1.0%.
(2) slurry configurations: the 1. strict control ratio of mud, match ratio are 1.5~2；2. cement slurry must sufficiently mix uniformly；
3. preferably using ordinary portland cement P32.5 to improve soil cement intensity performance.
(3) it send slurry: by the cement slurry prepared after being sieved through filter, pouring into slurry bucket, start slurry pump, slurries are sent to stirring
Head send the operating pressure of the grouting pump of sizing process to should be greater than 2.8MPa for injection.
(4) it stirs: preferably selecting the whipped form based on helical blade type in sandy soil, mixing speed presses top gear 35r/
Min is controlled by 16 r/min of low or first gear.
(5) drilling tool lifting and decrease speed: general subsidence velocity is not more than 1m/min, promotes speed and is not more than 2m/min.
(6) pile body construction must keep continuity, and adjacent pile driving construction interval must not exceed 12h.Stop to starch for some reason when construction, answer
Grouting stirring is constructed again after recovery slurry is preceding by three 0.5 meter of axis blender lifting or sinking.
(7) every cubic metre of cement consumption 18~20%.Steel strand wires should be immediately inserted into after mixing pile construction to position is arranged.
(8) when armored concrete capping beam conserves 7 days, steel strand wires are locked on the top of capping beam.First anchor-hold is 80KN.
The construction method of the oblique anchoring pile supporting of reinforced cement earth, comprising the following steps:
(1) position is determined by construction drawing unwrapping wire before drilling, mark.
(2) drilling machine selection should meet requirement of the design of its support to design parameter.
(3) the muscle body of reinforced cement earth anchoring pile uses 15.2 steel strand wires of Φ, and dilling angle is 50 degree (angle with horizontal plane),
The stringent dilling angle for pressing design requirement, stake is long and stake diameter is constructed.
(4) muscle body should be placed on the center of pile body.
(5) steel strand wires will lock on capping beam, and first anchor-hold is every anchor cable 80KN.
(6) injecting paste material uses 32.5 cement paste of ordinary portland cement, the ratio of mud 1.0~0.7, and cement slurry should mix and stir
Uniformly, incorporation 16~18%, with mixing with the cement slurry of a mix should be finished before initial set.
(7) pressure of jet mixing should be 10~18MPa.
The technical means disclosed in the embodiments of the present invention is not limited to the technical means disclosed in the above technical means, and further includes
Technical solution consisting of any combination of the above technical features.
Taking the above-mentioned ideal embodiment according to the present invention as inspiration, through the above description, relevant staff is complete
Various changes and amendments can be carried out without departing from the scope of the technological thought of the present invention' entirely.The technology of this invention
Property range is not limited to the contents of the specification, it is necessary to which the technical scope thereof is determined according to the scope of the claim.
Claims (10)
1. a kind of reinforced cement-soil pile anchor support, it is characterised in that including vertical anchoring pile and oblique anchoring pile, the vertical anchoring pile and tiltedly
The top cross of anchoring pile, which contacts, to be fixed, and capping beam, the capping beam and ground are provided at the top of the vertical anchoring pile and oblique anchoring pile
Face flushes.
2. a kind of reinforced cement-soil pile anchor support according to claim 1, it is characterised in that the vertical anchoring pile includes mixed
The solidifying vertical column of soil, for the axial centre of the vertical column of concrete through there is steel strand wires, the top of the steel strand wires is vertical from concrete
It is stretched out in column,
The oblique anchoring pile includes concrete tilt stake, and through there is steel strand wires, which twists the axial centre of the concrete tilt stake
The top of line is stretched out from concrete tilt column.
3. a kind of construction equipment of reinforced cement-soil pile anchor support, it is characterised in that including drilling machine and pump machine, the drilling machine includes
Power head and drilling rod, the power head are located at drilling rod close to top position, and power head can drive drilling rod to rotate, the drilling rod
Axial centre is arranged to hollow shape, and the top of the drilling rod is connected with high-voltage tube, the high-voltage tube and brill by rotary joint
The other end of bar connection, the high-voltage tube connects pump machine, the pump machine and prepared concrete grout material pond or concrete slurry
Bucket connection, for concrete slurry to be pumped into drilling rod.
4. a kind of construction equipment of reinforced cement-soil pile anchor support according to claim 3, it is characterised in that the drilling rod
Bottom be arranged to cone shape, and the surrounding in cylindrical shape surrounding and drilling rod bottom is provided with external screw thread；Outer spiral shell
Grout outlet is provided between the screw thread of line, grout outlet is tilted towards counter clockwise direction.
5. a kind of construction method of reinforced cement-soil pile anchor support, it is characterised in that including following operating procedure:
Step 1: label punch position: according to site operation needs, the position that planning needs to punch well in construction ground, and
Carry out stake position label in the position for needing to punch；
Step 2: positional punch equipment: by drilling-machine shifter to specified stake position mark position, the drilling rod of drilling machine is vertically suspended from stake position
The top of label；
Step 3: slurry configurations: concrete batching slurry；
Step 4: sending slurry: the concrete slurry prepared being transported in concrete grout material pond or concrete grout charging basket, cement slurry
After being sieved through filter, slurry bucket is poured into, slurry pump is started, slurries are sent to stirring-head；
Step 5: drilling, slip casting: starting drilling machine, in stake position, mark position drills vertically downward, after being bored into scheduled depth, to
In upper lifting process, towards concrete slurry is injected in drilling, after drilling rod is promoted, concrete grout is filled in drilling
Material before concrete slurry in the borehole does not solidify, is inserted into steel strand wires；
Step 6: maintenance: capping beam is arranged in the top of the concrete-pile formed in the borehole, and after the completion of maintenance, steel is twisted for maintenance
Line lock forms reinforced cement earth stake on the top of capping beam.
6. a kind of construction method of reinforced cement-soil pile anchor support according to claim 5, it is characterised in that the step 5
In, when drilling straight down, the diameter up and down that drills is consistent；
The mass ratio of water and concrete grey is 1.5~2:1 in the step 3.
7. a kind of construction method of reinforced cement-soil pile anchor support according to claim 5, it is characterised in that the step 5
In, when drilling diagonally downward, coagulation soil ball is formed on the bottom of drilling, and the diameter of coagulation soil ball is greater than the diameter of inclined drill；
The mass ratio of water and concrete grey is 0.7~1.0:1 in the step 3.
8. a kind of construction method of reinforced cement-soil pile anchor support according to claim 5, it is characterised in that the step 5
Middle drilling tool lifting speed is not more than 2m/min, and settling velocity degree is not more than 1m/min.
9. a kind of construction method of reinforced cement-soil pile anchor support according to claim 5, it is characterised in that the step 3
The middle method concrete batching slurry using stirring, selects helical blade stirrer, and mixing speed is 16 r/min~35r/min；
The pressure of helical blade jet mixing is 10~18MPa.
10. a kind of construction method of reinforced cement-soil pile anchor support according to claim 5, it is characterised in that adjacent described
Reinforced cement earth pile driving construction keeps continuity, and adjacent reinforced cement earth pile driving construction interval must not exceed 12h, and when construction stops for some reason
Slurry, before restoring slurry, by grouting stirring is constructed again after 0.5 meter of drilling rod lifting or sinking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811039381.9A CN109162283A (en) | 2018-09-06 | 2018-09-06 | A kind of reinforced cement-soil pile anchor support and its construction equipment and construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811039381.9A CN109162283A (en) | 2018-09-06 | 2018-09-06 | A kind of reinforced cement-soil pile anchor support and its construction equipment and construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109162283A true CN109162283A (en) | 2019-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811039381.9A Pending CN109162283A (en) | 2018-09-06 | 2018-09-06 | A kind of reinforced cement-soil pile anchor support and its construction equipment and construction method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529732A (en) * | 2021-07-02 | 2021-10-22 | 广汇能源综合物流发展有限责任公司 | Circulating pipeline device for LNG gasification conversion and construction method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1137088A (en) * | 1996-04-10 | 1996-12-04 | 李宪奎 | Construction method for soil bulkhead structure |
| CN1141375A (en) * | 1995-10-25 | 1997-01-29 | 李宪奎 | Retaining wall structure and method for constructing same |
| CN101864773A (en) * | 2010-04-14 | 2010-10-20 | 江苏江中集团有限公司 | Deep foundation pit support process |
| CN106812473A (en) * | 2017-02-10 | 2017-06-09 | 上海强劲地基工程股份有限公司 | Churning drilling tool with helical blade and pressure injection displacement stiffening pile anchor construction method |
| CN209368838U (en) * | 2018-09-06 | 2019-09-10 | 江苏兴厦建设工程集团有限公司 | A kind of reinforced cement-soil pile anchor support structure |
-
2018
- 2018-09-06 CN CN201811039381.9A patent/CN109162283A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1141375A (en) * | 1995-10-25 | 1997-01-29 | 李宪奎 | Retaining wall structure and method for constructing same |
| CN1137088A (en) * | 1996-04-10 | 1996-12-04 | 李宪奎 | Construction method for soil bulkhead structure |
| CN101864773A (en) * | 2010-04-14 | 2010-10-20 | 江苏江中集团有限公司 | Deep foundation pit support process |
| CN106812473A (en) * | 2017-02-10 | 2017-06-09 | 上海强劲地基工程股份有限公司 | Churning drilling tool with helical blade and pressure injection displacement stiffening pile anchor construction method |
| CN209368838U (en) * | 2018-09-06 | 2019-09-10 | 江苏兴厦建设工程集团有限公司 | A kind of reinforced cement-soil pile anchor support structure |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113529732A (en) * | 2021-07-02 | 2021-10-22 | 广汇能源综合物流发展有限责任公司 | Circulating pipeline device for LNG gasification conversion and construction method thereof |
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