CN106592584A - Anti-deviation structure for engineering pile on soft soil foundation and construction process - Google Patents
Anti-deviation structure for engineering pile on soft soil foundation and construction process Download PDFInfo
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- CN106592584A CN106592584A CN201611061982.0A CN201611061982A CN106592584A CN 106592584 A CN106592584 A CN 106592584A CN 201611061982 A CN201611061982 A CN 201611061982A CN 106592584 A CN106592584 A CN 106592584A
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- steel pipe
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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
- E02D5/46—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
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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
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
- E02D27/14—Pile framings, i.e. piles assembled to form the substructure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention provides an anti-deviation structure for an engineering pile on a soft soil foundation and construction process, pertaining to the building field. Therefore, the existing problem of a deviation structure such as poor impact resistance is solved. In the anti-deviation structure for the engineering pile and the construction process, the anti-deviation structure comprises multiple cement soil mixing piles. Two adjacent cement soil mixing piles are partially overlapped. The overlapped part at each position is provided with a rectangular buffer hole, in which a steel pipe is vertically fixed. An elastic column made by plastic material is vertically fixed in each steel pipe. Inner and outer side walls of each steel pipe are attached to the side wall of each elastic column and the hole wall of each buffer hole. The construction process comprises following steps: A, making steel pipes; B, assembling the steel pipes and plastic blocks; C, installing elastic columns; D, locating cement soil mixing pile positions; E, making the cement soil mixing piles; F, machining buffer holes; G, inserting combination bodies obtained by the C step to the buffer holes. The anti-deviation structure for the engineering pile on the soft soil foundation and the construction process have the advantage in that impact resistance of the anti-deviation structure is improved.
Description
Technical field
The invention belongs to building field, is related to a kind of project pile deflection prevention structure used on soft soil foundation and construction technology.
Background technology
Coastal area soft soil foundation is typically based on mud or muck soil, and such native liquidity index is big, in stream modeling shape
State, shearing strength is low, compressibility is higher, permeability is less.Practice have shown that, the construction quality and off normal of general ground engineering pile are
It is easier what is controlled.But in soft soil foundation, the engineering pile of construction usually occurs off normal construction quality problem, i.e. pile sinking
When position it is errorless, and the intermediate acceptance before pile follower also has no problem, but part engineering pile position off normal is had been found that after being excavated,
Sometimes even large-area off normal.
For above-mentioned problem, it has been realized that deficiency, and improved, as disclosed in Chinese patent storehouse one
Plant project pile deflection prevention structure used on soft soil foundation and method for pretreating [application number：201010168018.4；Application publication number CN
102235008 A], ruggedized construction is set around engineering pile, described ruggedized construction include it is multiple around cushion cap be in grid
The continuously arranged cement mixing method of structure, the stake top absolute altitude of the mixing pile is concordant with foundation ditch bottom absolute altitude, the depth of mixing pile
For 1.2-1.4 times of foundation depth, and described ruggedized construction is located at the 2/3-3/4 foundation ditches centered on foundation ditch central authorities
In the range of；Described mixing pile is arranged by well head of cushion cap in substantially " well " font structure；The cushion cap is in triangle substantially,
Described engineering pile has three, is arranged at each corner location of the cushion cap, is additionally provided with each engineering pile between each engineering pile
Two two mixing piles spaced apart；Or described cushion cap is square, described engineering pile has four, is arranged at the cushion cap
Each corner location, the mixing pile for being spaced apart both is provided between adjoining engineering pile；Or described cushion cap is in rectangular
Shape, engineering pile has two, is arranged on two side positions of the cushion cap.
Because this pile deviation structure is used in coastal area, when violent typhoon is run into or engineering machinery is not collided,
Because the part that cement mixing method exposes weak soil is separately provided, this part is caused to be easy to forced breakage, then shadow
The use of the whole pile deviation structure of sound.
The content of the invention
The purpose of the present invention is there are the problems referred to above for existing technology, it is proposed that a kind of soft soil foundation preventing engineering stake is inclined
Bit architecture, the technical problem of solution is how to improve the impact resistance of ruggedized construction.
Another object of the present invention is：A kind of construction of project pile deflection prevention structure used on soft soil foundation easy to make is provided
Technique.
First purpose of the present invention can be realized by following technical proposal：A kind of soft soil foundation preventing engineering pile deviation knot
Structure, including the ruggedized construction around the engineering pile, ruggedized construction includes cement mixing method, cement mixing method have it is multiple simultaneously
Cushion cap for placing engineering pile is well head in substantially " well " font structure continuous arrangement, two adjoining Soil-cements
Stake part overlaps, it is characterised in that the part for often locating to overlap is axially arranged with the buffering in strip along cement mixing method
Hole, and cushion hole is blind hole, the aperture of described cushion hole is located on the roof of cement mixing method, and the diapire position of cushion hole
The steel pipe in straight tube-like, both steel pipe and cushion hole are vertically fixed in the bottom of cement mixing method, each cushion hole
Length it is identical and lower end of steel pipe offsets with the diapire of cushion hole, be vertically fixed in described steel pipe and be made up of plastic material
Post, and post is in solid shape, the inside and outside two side of steel pipe respectively with the side wall and the hole wall phase of cushion hole of post
Recline.
In steel pipe and under the collective effect of post by made by plastic material, make at the overlapping of two cement mixing methods both
With rigidity, and with toughness, so as to effectively increase the anti-buffer capacity of lamination portion, so just can effective inhibition power
Toward the transmission of next stage cement mixing method direction, effectively reduce being delivered to the active force of next stage cement mixing method then
Amount, to reduce the probability of cement mixing method forced breakage, so as to effectively increase the impact resistance of whole ruggedized construction.
In above-mentioned project pile deflection prevention structure used on soft soil foundation, the lateral wall of described steel pipe sets along the radial direction of the steel pipe
Limited location hole, spacing hole has multiple and gathers on the side wall of steel pipe, is embedded with and spacing hole phase in the spacing hole described in each
The unit of plastic of matching.
Using above-mentioned design, the toughness of steel pipe can be both improved, steel pipe can be made to possess certain elasticity again, so just
Deformation extent during steel pipe stress can be reduced, so as to further reduce above-mentioned active force next stage cement mixing method is delivered to
On amount, the purpose that the impact resistance of raising ruggedized construction is made then more stably realizes.
In above-mentioned project pile deflection prevention structure used on soft soil foundation, described spacing hole is blind hole, the front portion of the spacing hole
Tapered and its diameter is gradually reduced by the direction in steel pipe extroversion steel pipe, and the middle part and rear portion of spacing hole be rounded and aperture
It is identical with the anterior minimum-value aperture of spacing hole.
That is the shape of unit of plastic is also forward taper, postmedian circle.Design tapered by the front portion by unit of plastic, can
To increase the lifting surface area of unit of plastic；Secondly, design circular by the postmedian by unit of plastic, the front portion of unit of plastic is played
Preferably supporting role, so that whole unit of plastic preferably plays shock-absorbing capacity, makes the impact resistance of raising ruggedized construction
Purpose more stably realize.
In above-mentioned project pile deflection prevention structure used on soft soil foundation, the upper end of described steel pipe is blind end, and post
Both ends of the surface offset with the inner roof wall of cushion hole diapire and steel pipe respectively.
Mutually recline with the hole wall of cushion hole the collective effect of both in the upper end closed of steel pipe and the lateral wall of steel pipe
Under, the probability that post is contacted with external environment condition can be effectively reduced, to delay the speed of the elastic aging of column, make post all the time
Stronger shock-absorbing capacity, the purpose for making the impact resistance of raising ruggedized construction is kept more stably to realize.
In above-mentioned project pile deflection prevention structure used on soft soil foundation, described steel pipe by friction tight mode with it is described
Cement mixing method is mutually fixed；Described post is mutually fixed by friction tight mode with described steel pipe.
I.e. the connection of steel pipe and cement mixing method and steel pipe need not be by other zero with the connection of post
Part, had so both facilitated installation, and the cost of four installations above is reduced again.Secondly, using above-mentioned structure, steel pipe can be made
The hole wall of lateral wall and cushion hole is more closely contacted to form more structurally sound sealing, so as to avoid post and external environment condition
Contact, to substantially reduce the speed of the elastic aging of column, the purpose for making the impact resistance of raising ruggedized construction is more stably realized.
The technical scheme for reaching another object of the present invention is：A kind of construction work of project pile deflection prevention structure used on soft soil foundation
Skill, comprises the following steps：
A, making steel pipe：Meet the pipeline section of length under cutting from raw material tubing, after pipeline section is clipped on lathe, by boring
Head gets out blind round hole on the lateral wall of pipeline section, then that the front end of blind round hole is hinged into into taper by taper reamer is spacing to be formed
Hole；
B, assembling steel pipe and unit of plastic：Plastic grain is inserted in spacing hole, heating steel pipe makes plastic grain be fused into liquid
Body simultaneously fills up whole spacing hole, and after steel pipe natural cooling, above-mentioned liquid curing is bonded together into unit of plastic and with steel pipe
Blank is formed, then sanding and polishing is carried out to the outer surface of blank by sanding and polishing machine；
C, installation post：One end of feed material plastics post is inserted in steel pipe until the inner face with the blind end of steel pipe
Stop insertion when offseting, then feed material plastics post is blocked by cutter；
D, positioning cement mixing method position：Slag packing course of delaying when cutting out engineering sunk pile, 2/ centered on foundation ditch central authorities
Cement mixing method position is determined in the range of 3-3/4 foundation ditches, multiple cement mixing method positions are centered around around cushion cap and are with cushion cap
Well head is in substantially " well " font structure continuous arrangement；
E, making cement mixing method：The cement mixing method position that cement mixing pile machine centering is specified, in foundation depth
Start to record cement mixing method at 1.2-1.4 times of position, and the stake top absolute altitude of cement mixing method is put down with foundation ditch bottom absolute altitude
Together, above-mentioned step is repeated, until all cement mixing method positions are recorded finishing；
F, processing buffer hole：Drilled downwards to process buffering from the roof of cement mixing method by concrete coring machine
Hole；
G, the assembly that step C is obtained is inserted in cushion hole.
Wherein, the positioning being related in step D and step E and the method for making cement mixing method are existing, tools
Body may be referred to a kind of project pile deflection prevention structure used on soft soil foundation disclosed in Chinese patent storehouse and method for pretreating [application number：
201010168018.4；The A of application publication number CN 102235008].
In the construction technology of above-mentioned project pile deflection prevention structure used on soft soil foundation, in step A, thick taper reamer is first passed through
The front end of blind round hole is slightly cut with scissors, then the front end of blind round hole is finish reamed by smart taper reamer.
The molding of blind round hole front end is made by thick hinge, then is polished blind round hole front end specified to reach by finish reaming
Size.
Together thick hinge was first carried out before finish reaming, the cutting force of bottoming reamer can be reduced, with guarantee molding precision and
Reduce the difficulty of processing.
In the construction technology of above-mentioned project pile deflection prevention structure used on soft soil foundation, described cement mixing method is Φ
The cement mixing piles of 700@600, cement mixing content is 10%-20%, and the volume of outer-penetrating agent gypsum powder is the 2.0% of cement mixing content,
It is 8% that sky stirs part of cement volume, and the ratio of mud is 0.5-0.6.
Compared with prior art, this project pile deflection prevention structure used on soft soil foundation and construction technology have advantages below：
1st, in steel pipe and by made by plastic material under the collective effect of post, make at the overlapping of two cement mixing methods
Both there is rigidity, and with toughness, so as to effectively increase the anti-buffer capacity of lamination portion, so just can effective inhibition
Power is transmitted toward next stage cement mixing method direction, effectively reduces being delivered to the active force of next stage cement mixing method then
Amount, to reduce the probability of cement mixing method forced breakage, so as to effectively increase the impact resistance of whole ruggedized construction.
2nd, by being embedded in unit of plastic on the side wall of steel pipe, the toughness of steel pipe can be both improved, steel pipe can again possesses
Certain elasticity, so just can reduce deformation extent during steel pipe stress, so as to the active force for further reducing above-mentioned is delivered to
Amount on next stage cement mixing method, the purpose that the impact resistance of raising ruggedized construction is made then is more stably realized.
3rd, design tapered by the front portion by unit of plastic, the lifting surface area of unit of plastic can be increased；Secondly, by moulding
The postmedian design of material block is circular, and to the front portion of unit of plastic preferable supporting role is played, so that whole unit of plastic is preferable
Ground plays shock-absorbing capacity, and the purpose for making the impact resistance of raising ruggedized construction is more stably realized.
4th, the upper end closed of steel pipe and the lateral wall of steel pipe and cushion hole hole wall closely against the common of both
Under effect, the probability that post is contacted with external environment condition can be effectively reduced, to delay the speed of the elastic aging of column, make post
Stronger shock-absorbing capacity is remained, the purpose for making the impact resistance of raising ruggedized construction is more stably realized.
Description of the drawings
Fig. 1 is the structural representation of this project pile deflection prevention structure used on soft soil foundation.
Fig. 2 is cross section structure diagrams of the Fig. 1 on A-A directions.
Fig. 3 is the cross section structure diagram of steel pipe.
In figure, 1, cement mixing method；2nd, engineering pile；3rd, cushion cap；4th, steel pipe；4a, spacing hole；5th, post；6th, plastics
Block.
Specific embodiment
The following is the specific embodiment of the present invention and combine accompanying drawing, technical scheme is further described,
But the present invention is not limited to these embodiments.
Embodiment one
As shown in figure 1, this project pile deflection prevention structure used on soft soil foundation includes the ruggedized construction around engineering pile 2, tool
For body, ruggedized construction is located in the range of the 2/3-3/4 foundation ditches centered on foundation ditch central authorities.The ruggedized construction is by many cement
Native mixing pile 1 is constituted, and many cement mixing methods 1 are that well head is tied in substantially " well " font for the cushion cap 3 for placing engineering pile 2
Structure continuous arrangement, and adjoining two parts of cement mixing method 1 overlapping.
Wherein, the depth of cement mixing method 1 is 1.2 times of foundation depth, and the stake top absolute altitude of cement mixing method 1 with
Foundation ditch bottom absolute altitude is concordant.The shape of cushion cap 3 can be square or rectangular again or general triangular, in the present embodiment,
It is preferred that cushion cap 3 is introduced for rectangle；Engineering pile 2 is arranged on the corner of cushion cap 3.
The part for often locating to overlap is axially arranged with the cushion hole in strip along cement mixing method 1, and cushion hole is
Blind hole.As shown in figure 1, the aperture of cushion hole is located on the roof of cement mixing method 1, i.e., now, the aperture of cushion hole is upward；
The diapire of cushion hole is located at the bottom of cement mixing method 1, and the diapire of the cushion hole is plane.
The steel pipe 4 in straight tube-like is vertically fixed in each cushion hole, and in the present embodiment, preferred steel pipe 4 is in circle
Tubulose, cushion hole is rounded, and steel pipe 4 is fixed by friction tight mode with cement mixing method 1, so not only can ensure that steel
Pipe 4 and the stability of the connection of cement mixing method 1, and form the lateral wall of steel pipe 4 and the hole wall tight abutment of cushion hole
Sealing.Further illustrate, the upper end of steel pipe 4 is blind end；Steel pipe 4 is identical with the length of both cushion holes, and the lower end of steel pipe 4
Offset with the diapire of cushion hole, to play preferable supporting role to cushion hole.
As shown in Fig. 2 being vertically fixed the post 5 in solid shape, and post 5 by plastics material in every steel pipe 4
Material is made.In the present embodiment, preferred post 5 is cylindrical, and post 5 is fixed by friction tight mode with steel pipe 4, i.e.,
Now, the side wall of post 5 and the medial wall of steel pipe 4 closely against.Further illustrate, the both ends of the surface of post 5 respectively with it is slow
The inner roof wall of punching diapire and steel pipe 4 offsets.
As shown in Figures 2 and 3, the lateral wall of steel pipe 4 is radially provided with spacing hole 4a along the steel pipe 4, and spacing hole 4a has many
It is individual and gather on the side wall of steel pipe 4, is embedded with the unit of plastic 6 matched with spacing hole 4a in each spacing hole 4a.Further
Illustrate, spacing hole 4a is blind hole, anterior tapered and its diameter of spacing hole 4a by the direction in the extroversion steel pipe 4 of steel pipe 4 by
Decrescence little, the middle part and rear portion of spacing hole 4a be rounded and the anterior minimum-value aperture of aperture and spacing hole 4a is identical.Mould
The shape of material block 6 is also forward taper, postmedian circle.Design tapered by the front portion by unit of plastic 6, plastics can be increased
The lifting surface area of block 6；Secondly, design circular by the postmedian by unit of plastic 6, the front portion of unit of plastic 6 is played preferably
Supporting role, so that whole unit of plastic 6 preferably plays shock-absorbing capacity, makes the purpose of the impact resistance of raising ruggedized construction
More stably realize.
A kind of construction technology of project pile deflection prevention structure used on soft soil foundation, comprises the following steps：
A, making steel pipe 4：Meet the pipeline section of length under cutting from raw material tubing, after pipeline section is clipped on lathe, pass through
Drill bit gets out blind round hole on the lateral wall of pipeline section, then the front end of blind round hole is slightly cut with scissors by thick taper reamer, then
The front end of blind round hole is finish reamed by smart taper reamer form spacing hole 4a.
B, assembling steel pipe 4 and unit of plastic 6：Plastic grain is inserted in spacing hole 4a, heating steel pipe 4 melts plastic grain
Into liquid and whole spacing hole 4a is filled up, after the natural cooling of steel pipe 4, above-mentioned liquid curing is into unit of plastic 6 and viscous with steel pipe 4
It is combined to form blank, then sanding and polishing is carried out to the outer surface of blank by sanding and polishing machine.
C, installation post 5：By one end of feed material plastics post be inserted in steel pipe 4 until with the blind end of steel pipe 4 in
Stop insertion when end face offsets, then feed material plastics post is blocked by cutter.
D, positioning cement mixing method 1：Slag packing course of delaying when cutting out 2 pile sinking of engineering pile, centered on foundation ditch central authorities
Cement mixing method 1 is determined in the range of 2/3-3/4 foundation ditches, multiple cement mixing methods 1 are centered around around cushion cap 3 and to hold
Platform 3 is well head in substantially " well " font structure continuous arrangement.
E, making cement mixing method 1：The cement mixing method that cement mixing pile machine centering is specified 1, in foundation depth
Start to record cement mixing method 1 at 1.2 times of position, and the stake top absolute altitude of cement mixing method 1 is concordant with foundation ditch bottom absolute altitude,
The above-mentioned step of repetition, until all cement mixing methods 1 are recorded finishing.
F, processing buffer hole：Drilled downwards from the roof of cement mixing method 1 by concrete coring machine slow to process
Punching.
G, the assembly that step C is obtained is inserted in cushion hole.
In above-mentioned step, the positioning being related in step D and step E and the method for making cement mixing method 1 are equal
It is existing, specifically may be referred to a kind of off-set construction of soft soil foundation preventing engineering stake 2 and method for pretreating disclosed in Chinese patent storehouse
[application number：201010168018.4；The A of application publication number CN 102235008]；Cement mixing method 1 is the cement of 700@of Φ 600
Mixing pile, cement mixing content is 10%-20%, and the volume of outer-penetrating agent gypsum powder is the 2.0% of cement mixing content, and sky stirs part of cement
Volume is 8%, and the ratio of mud is 0.5-0.6.
Embodiment two
The present embodiment two is essentially identical with the structure and principle of embodiment one, and different place is：Soil-cement
The depth of stake 1 is 1.3 times of foundation depth.
A kind of construction technology of project pile deflection prevention structure used on soft soil foundation, comprises the following steps：
A, making steel pipe 4：Meet the pipeline section of length under cutting from raw material tubing, after pipeline section is clipped on lathe, pass through
Drill bit gets out blind round hole on the lateral wall of pipeline section, then the front end of blind round hole is slightly cut with scissors by thick taper reamer, then
The front end of blind round hole is finish reamed by smart taper reamer form spacing hole 4a.
B, assembling steel pipe 4 and unit of plastic 6：Plastic grain is inserted in spacing hole 4a, heating steel pipe 4 melts plastic grain
Into liquid and whole spacing hole 4a is filled up, after the natural cooling of steel pipe 4, above-mentioned liquid curing is into unit of plastic 6 and viscous with steel pipe 4
It is combined to form blank, then sanding and polishing is carried out to the outer surface of blank by sanding and polishing machine.
C, installation post 5：By one end of feed material plastics post be inserted in steel pipe 4 until with the blind end of steel pipe 4 in
Stop insertion when end face offsets, then feed material plastics post is blocked by cutter.
D, positioning cement mixing method 1：Slag packing course of delaying when cutting out 2 pile sinking of engineering pile, centered on foundation ditch central authorities
Cement mixing method 1 is determined in the range of 2/3-3/4 foundation ditches, multiple cement mixing methods 1 are centered around around cushion cap 3 and to hold
Platform 3 is well head in substantially " well " font structure continuous arrangement.
E, making cement mixing method 1：The cement mixing method that cement mixing pile machine centering is specified 1, in foundation depth
Start to record cement mixing method 1 at 1.3 times of position, and the stake top absolute altitude of cement mixing method 1 is concordant with foundation ditch bottom absolute altitude,
The above-mentioned step of repetition, until all cement mixing methods 1 are recorded finishing.
F, processing buffer hole：Drilled downwards from the roof of cement mixing method 1 by concrete coring machine slow to process
Punching.
G, the assembly that step C is obtained is inserted in cushion hole.
Embodiment three
The present embodiment three is essentially identical with the structure and principle of embodiment one, and different place is：
The depth of cement mixing method 1 is 1.4 times of foundation depth.
A kind of construction technology of project pile deflection prevention structure used on soft soil foundation, comprises the following steps：
A, making steel pipe 4：Meet the pipeline section of length under cutting from raw material tubing, after pipeline section is clipped on lathe, pass through
Drill bit gets out blind round hole on the lateral wall of pipeline section, then the front end of blind round hole is slightly cut with scissors by thick taper reamer, then
The front end of blind round hole is finish reamed by smart taper reamer form spacing hole 4a.
B, assembling steel pipe 4 and unit of plastic 6：Plastic grain is inserted in spacing hole 4a, heating steel pipe 4 melts plastic grain
Into liquid and whole spacing hole 4a is filled up, after the natural cooling of steel pipe 4, above-mentioned liquid curing is into unit of plastic 6 and viscous with steel pipe 4
It is combined to form blank, then sanding and polishing is carried out to the outer surface of blank by sanding and polishing machine.
C, installation post 5：By one end of feed material plastics post be inserted in steel pipe 4 until with the blind end of steel pipe 4 in
Stop insertion when end face offsets, then feed material plastics post is blocked by cutter.
D, positioning cement mixing method 1：Slag packing course of delaying when cutting out 2 pile sinking of engineering pile, centered on foundation ditch central authorities
Cement mixing method 1 is determined in the range of 2/3-3/4 foundation ditches, multiple cement mixing methods 1 are centered around around cushion cap 3 and to hold
Platform 3 is well head in substantially " well " font structure continuous arrangement.
E, making cement mixing method 1：The cement mixing method that cement mixing pile machine centering is specified 1, in foundation depth
Start to record cement mixing method 1 at 1.4 times of position, and the stake top absolute altitude of cement mixing method 1 is concordant with foundation ditch bottom absolute altitude,
The above-mentioned step of repetition, until all cement mixing methods 1 are recorded finishing.
F, processing buffer hole：Drilled downwards from the roof of cement mixing method 1 by concrete coring machine slow to process
Punching.
G, the assembly that step C is obtained is inserted in cushion hole.
Specific embodiment described herein is only explanation for example spiritual to the present invention.Technology neck belonging to of the invention
The technical staff in domain can be made various modifications to described specific embodiment or supplement or replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (8)
1. a kind of project pile deflection prevention structure used on soft soil foundation, including the ruggedized construction around engineering pile, ruggedized construction includes
Cement mixing method, it is that well head is tied in substantially " well " font that cement mixing method has multiple and for placing engineering pile cushion cap
Structure continuous arrangement, adjoining two cement mixing method parts overlapping, it is characterised in that often locate the part for overlapping along cement
Native mixing pile is axially arranged with the cushion hole in strip, and cushion hole is blind hole, and the aperture of described cushion hole is located at cement
On the roof of native mixing pile, and the diapire of cushion hole is located in the bottom of cement mixing method, each cushion hole and vertically fixes
There is a steel pipe in straight tube-like, the length of both steel pipe and cushion hole is identical and lower end of steel pipe offsets with the diapire of cushion hole, institute
The post by made by plastic material, and post are vertically fixed in the steel pipe stated in solid shape, the inside and outside two side of steel pipe
Mutually recline with the side wall of post and the hole wall of cushion hole respectively.
2. project pile deflection prevention structure used on soft soil foundation according to claim 1, it is characterised in that the outside of described steel pipe
Along the spacing hole that is radially provided with of the steel pipe, spacing hole has multiple and gathers on the side wall of steel pipe wall, the spacing hole described in each
Inside it is embedded with the unit of plastic matched with spacing hole.
3. project pile deflection prevention structure used on soft soil foundation according to claim 2, it is characterised in that described spacing hole is blind
Hole, anterior tapered and its diameter of the spacing hole is gradually reduced by the direction in steel pipe extroversion steel pipe, the middle part of spacing hole and
Rear portion is rounded and the anterior minimum-value aperture of aperture and spacing hole is identical.
4. the project pile deflection prevention structure used on soft soil foundation according to claim 1 or 2 or 3, it is characterised in that described steel pipe
Upper end be blind end, and the both ends of the surface of post offset respectively with the inner roof wall of cushion hole diapire and steel pipe.
5. project pile deflection prevention structure used on soft soil foundation according to claim 4, it is characterised in that described steel pipe is by tight
The mode of cooperation is mutually fixed with described cement mixing method；Described post is by friction tight mode and described steel pipe
It is mutually fixed.
6. a kind of construction technology of project pile deflection prevention structure used on soft soil foundation, comprises the following steps：
A, making steel pipe：Meet the pipeline section of length under cutting from raw material tubing, after pipeline section is clipped on lathe, existed by drill bit
Blind round hole is got out on the lateral wall of pipeline section, then the front end of blind round hole is hinged into form spacing hole by taper by taper reamer；
B, assembling steel pipe and unit of plastic：Plastic grain is inserted in spacing hole, heating steel pipe makes plastic grain be fused into liquid simultaneously
Whole spacing hole is filled up, after steel pipe natural cooling, above-mentioned liquid curing is adhesively-bonded together to form into unit of plastic and with steel pipe
Blank, then sanding and polishing is carried out to the outer surface of blank by sanding and polishing machine；
C, installation post：One end of feed material plastics post is inserted in steel pipe until the inner face of the blind end with steel pipe offsets
When stop insertion, then feed material plastics post is blocked by cutter；
D, positioning cement mixing method position：Slag packing course of delaying when cutting out engineering sunk pile, the 2/3-3/4 centered on foundation ditch central authorities
Cement mixing method position is determined in the range of foundation ditch, multiple cement mixing method positions are centered around around cushion cap and are in by well head of cushion cap
Substantially " well " font structure continuous arrangement；
E, making cement mixing method：The cement mixing method position that cement mixing pile machine centering is specified, in foundation depth 1.2-1.4
Start to record cement mixing method at position again, and the stake top absolute altitude of cement mixing method is concordant with foundation ditch bottom absolute altitude, repeats
Above-mentioned step, until all cement mixing method positions are recorded finishing；
F, processing buffer hole：Drilled downwards to process cushion hole from the roof of cement mixing method by concrete coring machine；
G, the assembly that step C is obtained is inserted in cushion hole.
7. the construction technology of project pile deflection prevention structure used on soft soil foundation according to claim 6, it is characterised in that in A steps
In rapid, first pass through thick taper reamer and the front end of blind round hole is slightly cut with scissors, then the front end of blind round hole is entered by smart taper reamer
Row is finish reamed.
8. the construction technology of project pile deflection prevention structure used on soft soil foundation according to claim 6, it is characterised in that described
Cement mixing method is the cement mixing piles of 700@of Φ 600, and cement mixing content is 10%-20%, and the volume of outer-penetrating agent gypsum powder is
The 2.0% of cement mixing content, it is 8% that sky stirs part of cement volume, and the ratio of mud is 0.5-0.6.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN106592584B (en) | 2018-12-04 |
| CN108265709A (en) | 2018-07-10 |
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