CN110424383A - A kind of Spiral digging machine combination side chisel head excavates square pile construction method - Google Patents
A kind of Spiral digging machine combination side chisel head excavates square pile construction method Download PDFInfo
- Publication number
- CN110424383A CN110424383A CN201910717931.6A CN201910717931A CN110424383A CN 110424383 A CN110424383 A CN 110424383A CN 201910717931 A CN201910717931 A CN 201910717931A CN 110424383 A CN110424383 A CN 110424383A
- Authority
- CN
- China
- Prior art keywords
- square
- chisel head
- digging machine
- square pile
- casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
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
- E02D17/06—Foundation trenches ditches or narrow shafts
- E02D17/08—Bordering or stiffening the sides of ditches trenches or narrow shafts for foundations
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D33/00—Testing foundations or foundation structures
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/38—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds
- E02D5/385—Concrete or concrete-like piles cast in position ; Apparatus for making same making by use of mould-pipes or other moulds with removal of the outer mould-pipes
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
Abstract
The embodiment of the invention discloses a kind of Spiral digging machine combination side chisel heads to excavate square pile construction method, and the construction method includes the following steps: 1) to bury casing；2) stake position setting-out；3) rotary digging small bore；4) the big drilling of rotary digging；5) square chisel head deburring, borehole cleaning；Side's chisel head includes: connector, and the drilling rod of one end and Spiral digging machine is detachably connected；Square tube, one end are fixedly connected with connector outer wall, and the other end is notch, and several bucket tooths are arranged in slit space；6) stake holes drilled-hole inspecting installs framework of steel reinforcement, is poured pile foundation concrete, tears open, pulls out casing, form the square pile, completes the square pile construction.The construction method, pass through design side's chisel head, after Spiral digging machine is drilled circular hole using traditional rotary digging drill bit, rotary digging drill bit is replaced with side's chisel head, deburring is carried out to stake holes inner wall, thus in a manner of the mechanical deburring of square chisel head, instead of the existing mode manually excavated, it is obviously shortened construction duration, lifting construction efficiency.
Description
Technical field
The invention belongs to engineering construction technical fields, and in particular to a kind of Spiral digging machine combination side chisel head excavates square pile construction party
Method.
Background technique
In the construction of highway, municipal administration and house construction engineering, bored pile technology has reached its maturity, and Spiral digging machine is also put into extensively
It uses, Spiral digging machine has played huge advantage in replacing manually digging hole, and " safe, applicable, economical, beautiful " has obtained abundant body
It is existing.But square pile construction when, due to geometry limit, Spiral digging machine can only rotary digging circular hole, such as to obtain square pile adaptation square hole,
The soil having to using hand excavation's own perimeter, hand excavation's efficiency is slow, and safety, progress, benefit cannot ensure.
Summary of the invention
For this purpose, the embodiment of the present invention, which provides a kind of Spiral digging machine combination side chisel head, excavates square pile construction method, it is existing to solve
Spiral digging machine shape in square pile work progress it is limited can not excavation hole the problem of.
To achieve the goals above, the embodiment of the present invention provides the following technical solutions:
According to a first aspect of the embodiments of the present invention, a kind of Spiral digging machine combination side chisel head excavates square pile construction method, described
Construction method includes the following steps:
1) casing is buried
Smooth location, stake position unwrapping wire determine the stake position of square pile, excavate and casing shape phase in the stake position periphery of each square pile
The rectangular foundation pit of cooperation, lifting casing are inserted into the foundation pit to stake position, by casing lower end, surrounding backfill and press on the outside of casing
It is real；
2) stake position setting-out
On the ground being located on the inside of casing, according to measurement control stake point and design drawing, the stake holes periphery of square pile is made
Graticule, the vertical interval between stake holes periphery graticule and casing inner wall are at least 3cm；
3) rotary digging small bore
Using Spiral digging machine, Spiral digging machine is spaced rotary digging 4 by small rotary digging drill bit on the ground on the inside of the graticule of stake holes periphery
Small bore, 4 small bores are spaced apart on the ground for being set to and being located on the inside of the graticule of stake holes periphery in matrix pattern；
4) the big drilling of rotary digging
The small rotary digging drill bit on Spiral digging machine is removed, big rotary digging drill bit is replaced with, is circle with the stake holes periphery graticule center
The heart, the rotary digging 1 big drilling on the ground being located on the inside of the graticule of stake holes periphery；
5) square chisel head deburring, borehole cleaning
The big rotary digging drill bit on Spiral digging machine is removed, the side's of being replaced with chisel head adjusts the angle the side's of allowing chisel head and stake holes periphery graticule
It matches, closes the rotary mode of Spiral digging machine, stake holes periphery graticule inner edge soil is carried out deburring, clear with cutting mode by Spiral digging machine
The excavation of the stake holes is completed in hole；
Side's chisel head includes: that side's chisel head includes: connector, and one end and the drilling rod of the Spiral digging machine detachably connect
It connects；Square tube, one end are fixedly connected with connector outer wall, and the other end is notch, and the incision of square tube is provided at circumferentially spaced along notch
Several bucket tooths, kerf and stake holes size are coincide；
6) stake holes drilled-hole inspecting installs framework of steel reinforcement, is poured pile foundation concrete, tears open, pulls out casing, form the square pile, complete
It constructs at the square pile.
Further, in step 1), casing upper surface 30cm above ground level, the deviation between casing center and stake holes center
≤ 2cm, casing central axis and stake holes central axis deviation≤2cm, casing spend deviation≤1%, perimeter in the casing vertically
Greater than square pile outer perimeter at least 80cm.
Further, the diameter of small rotary digging drill bit used in step 3) is the 1/2 of square pile bond length；In step 3), each
Small bore corresponds to a quadrant of stake holes periphery graticule, and the rotary digging method of small bore is diagonal line excavation method；Step 4) is used
The diameter of big rotary digging drill bit is identical as square pile bond length.
Further, the connector is connecting tube or connecting column, and the connector protrudes into square tube far from Spiral digging machine one end
Inside, the square tube are fixedly connected by several junction steel plates with the connector outer wall；The square tube and junction steel plate are distinguished
Using 3 centimetres of thick steel plates；The junction steel plate one side wall is fixedly connected with connector outer wall, junction steel plate bottom surface and the square tube
Open end end face is fixedly connected；Several junction steel plates are circumferential outside connector to be intervally arranged.
Further, welding steel plate is tied up for corresponding at least one piece of every piece of junction steel plate, it is described to tie up welding steel board bottom face and square tube opening
End end face is welded and fixed, and ties up one side end face of welding steel plate and is welded and fixed with the junction steel plate surface.
Further, the quantity of the junction steel plate is 8 pieces, circumferential outside connector to be intervally arranged, and forms the four of square tube
In a face, the corresponding 2 pieces of junction steel plates in each face；Every piece corresponding 2 pieces of junction steel plate are tied up welding steel plate, and it is symmetrical that welding steel plate is tied up described in 2 pieces
It is set to junction steel plate two sides.
Further, the square tube outer wall perimeter is gradually reduced from the cut ends of setting bucket tooth to the square tube other end.
The embodiment of the present invention has the advantages that
The construction method, by design side's chisel head, after Spiral digging machine is drilled circular hole using traditional rotary digging drill bit, by rotary digging
Bit change-over carries out deburring at side's chisel head, to stake holes inner wall, thus in a manner of the mechanical deburring of square chisel head, instead of existing people
The mode that work is excavated manually, hence it is evident that shorten construction duration, lifting construction efficiency；
The construction method soft clay area, red clay and high liquid limit soil area, swelled ground area complete square pile (2.0 ×
It 2.5m) constructs 100 or more, pile quality is higher than hand excavation's mode；
Relative to traditional artificial borehole method, Spiral digging machine combination side chisel head excavates the safety benefit of square pile construction method, society
Meeting benefit and economic benefit are fairly obvious；
Nowadays countries in the world have all come into the automation apparatus epoch, with machinery substitution manual work be building trade it
Inexorable trend.It realizes production process mechanization, yield can be improved, guarantee quality, reduce production cost, improve working conditions, really
Production safety is protected, environmental pollution is mitigated.
Artificial Excavation Slide-resistance Piles security risk is very big, and most of circle stake now is all made of mechanical excavation, and barrette only
Fail always to be replaced manually with mechanical well, this construction method solves this problem, improves the safety coefficient of labour, reduces
The generation of artificial safety accident, can carry out operation in the case where high-altitude, high-risk using machinery, so that it may avoid people
The generation of fortification event, can do many manual works than relatively hazardous thing, produce fabulous safety benefit.
Manually digging hole work, the quantity of daily operation is all limited, and is sometimes also possible to sick or other reasons
Delay production plan；Machinery production can but carry out continuous productive process, and the division of labor is fine, can complete many works in certain period of time
Make task, which offers a saving the construction times, decrease the spending of labour cost and production capital.
Mechanization production fundamentally solves the means of production and is restricted by labour, can ceaselessly be worked with 24 hours,
It is not restricted by working strength also, has largely saved time resource.
Friction pile punishes location, inherently a kind of geological disease can grow in intensity, this engineering method is but brought and can be exceedingly fast
Construction speed, it is ensured that peripheral facilities are intact, it is ensured that resident's life, property safety.
By taking 12 meters of deep square piles (2.0 × 2.5m) as an example, hand excavation about need 10~15 day time (panelling construction time-consuming compared with
It is more) and have larger security risk (collapse hole, accidental falling), and excavated using Spiral digging machine combination side chisel head mode, then it only needs 3 small
When (use 4 hours of mud off), no setting is required fore shaft and retaining wall, steel pile casting can recycle, economic benefit do not say and
Analogy.
Detailed description of the invention
It, below will be to embodiment party in order to illustrate more clearly of embodiments of the present invention or technical solution in the prior art
Formula or attached drawing needed to be used in the description of the prior art are briefly described.It should be evident that the accompanying drawings in the following description is only
It is merely exemplary, it for those of ordinary skill in the art, without creative efforts, can also basis
The attached drawing of offer, which is extended, obtains other implementation attached drawings.
Structure depicted in this specification, ratio, size etc., only to cooperate the revealed content of specification, for
Those skilled in the art understands and reads, and is not intended to limit the invention enforceable qualifications, therefore does not have technical
Essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are not influencing the function of the invention that can be generated
Under effect and the purpose that can reach, should all still it fall in the range of disclosed technology contents obtain and can cover.
Fig. 1 is the technique stream that a kind of Spiral digging machine combination side chisel head that the embodiment of the present invention 1 provides excavates square pile construction method
Cheng Tu；
Fig. 2 is the step 1) that a kind of Spiral digging machine combination side chisel head that the embodiment of the present invention 1 provides excavates square pile construction method
The schematic diagram of middle excavation pit；
Fig. 3 is the step 1) that a kind of Spiral digging machine combination side chisel head that the embodiment of the present invention 1 provides excavates square pile construction method
In bury casing schematic diagram；
Fig. 4 is the step 2) that a kind of Spiral digging machine combination side chisel head that the embodiment of the present invention 1 provides excavates square pile construction method
The schematic diagram of stake position setting-out；
Fig. 5 is the step 3) that a kind of Spiral digging machine combination side chisel head that the embodiment of the present invention 1 provides excavates square pile construction method
The schematic diagram of rotary digging small bore；
Fig. 6 is the step 4) that a kind of Spiral digging machine combination side chisel head that the embodiment of the present invention 1 provides excavates square pile construction method
The schematic diagram of the big drilling of rotary digging；
Fig. 7 is the step 5) that a kind of Spiral digging machine combination side chisel head that the embodiment of the present invention 1 provides excavates square pile construction method
Square chisel head deburring, borehole cleaning schematic diagram；
Fig. 8 is that a kind of Spiral digging machine combination side chisel head that the embodiment of the present invention 1 provides excavates square chisel head in square pile construction method
Structural schematic diagram；
Fig. 9 is the sectional view along A-A of Fig. 8；
Figure 10 is the B-B direction cross-sectional view of Fig. 8；
Figure 11 is enlarged structure schematic diagram at the C of Fig. 9；
Figure 12 is the schematic perspective view of Figure 11；
In Fig. 1, dashed rectangle indicates the casing position line；
In figure:
100, foundation pit, 101, casing, 102, stake holes periphery graticule, 1021, first quartile, the 1022, second quadrant, 1023,
Third quadrant, 1024, fourth quadrant, 103, small bore, 104, big drilling, 105, stake holes；
200, square chisel head, 201, connector, 202, square tube, 203, bucket tooth, 204, junction steel plate, 205, tie up welding steel plate.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily, it is clear that described embodiment is the present invention one
Section Example, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing
Every other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.
Wherein, the term of such as "upper" cited in this specification, "lower", "left", "right", " centre " is also only just
In being illustrated for narration, rather than to limit the scope of the invention, relativeness is altered or modified, without substantive change
Under more technology contents, when being also considered as the enforceable scope of the present invention.
Embodiment 1
Referring to Fig. 1~12, a kind of Spiral digging machine combination side chisel head provided by the present invention excavates square pile construction method, described to apply
Work method includes the following steps:
1) casing is buried
Smooth location, stake position unwrapping wire determine the stake position of square pile, excavate and casing shape phase in the stake position periphery of each square pile
The rectangular foundation pit 100 of cooperation lifts casing 101 to stake position, and 101 outside surrounding backfill of casing is simultaneously compacted；
Specifically, excavator unloads slip mass load, and smooth location stays abundance to Spiral digging machine, crane, casting concrete
Working space.By stake position unwrapping wire, determine stake holes position after, excavate rectangular foundation pit 100 in stake holes position, can not excavation face mistake
Greatly, it is ensured that casing 101 can smoothly dispose can (the general 2 meters of depths of casing, can be deepened according to geological condition), will be under casing 101
The foundation pit 100 is inserted at end, and 101 upper end of casing is located at 100 top of foundation pit, and 101 outside surrounding backfill of casing is simultaneously compacted, dregs
It must not be stacked within the scope of 101 edge 1m of casing, clear in time.(referring to fig. 2)
Casing 101 is disposed, crane hangs casing 101, survey crew's real-time monitoring, it is ensured that 101 center of casing and square pile are (not
Diagram) center alignment, 101 top surface of casing 30cm above ground level.Deviation between 105 center of 101 center of casing and stake holes≤
2cm, 101 central axis of casing and stake holes 105 central axis deviation≤2cm, casing spend deviation≤1% vertically.The casing 101
Inner circumferential is long to be greater than square pile outer perimeter at least 80cm.Due to casing 101 be it is rectangular, square pile is rectangular (2.0 × 2.5m), therefore casing
101 side length is greater than corresponding square pile side length 20cm or more.Placement tolerance must control within the scope of, just can guarantee into
Hole quality.
Excavator backfills casing edge, notices that bucket must not be touched, hit casing, symmetrical refilling, survey crew monitors shield
Cylinder position deviation situation.Place is smooth again, marches into the arena and is ready for Spiral digging machine.(referring to Fig. 3)
2) stake position setting-out
On the ground being located on the inside of casing, according to measurement control stake point and design drawing, the stake holes periphery of square pile is made
Graticule 102, the vertical interval between 101 inner wall of stake holes periphery graticule 102 and casing are at least 3cm；
Specifically, according to measurement control stake point and design drawing, the stake holes periphery graticule 102 of square pile is made, pays attention to stake holes
If periphery graticule 102 away from casing inner edge less than 3cm when must adjust casing position (referring to fig. 4).It is (single when pile position deviation is smaller
Body friction pile has no effect on its functionality, but friction pile top has flange plate to be coupled with breast boards in this example, so wanting to stake position
Ask higher)
Wherein, the periphery of the as stake holes of stake holes periphery graticule 102, that is, the periphery graticule of square pile.
3) rotary digging small bore
Using Spiral digging machine, Spiral digging machine is spaced rotary digging on the ground of 102 inside of stake holes periphery graticule by small rotary digging drill bit
4 small bores 103,4 small bores 103 are spaced apart on the ground for being set to and being located at 102 inside of stake holes periphery graticule in matrix pattern；
Specifically, it selectsIt excavates the small drill bit quadrangle of rotary digging.
Wherein, stake holes periphery graticule 102 divides for four quadrants, each quadrant 1 small bore 103 of interior excavation；Meanwhile to subtract
Few collapse hole phenomenon occurs, using diagonal line excavation method, for example, sequence of excavation is first quartile 1021- third quadrant 1023- the
Two quadrant 1022- fourth quadrant 1024.(referring to Fig. 5)
Stake or if any collapse hole in water, then prepare mud off, this is identical as general drilled pile technique, does not repeat.Quadrangle
When excavating drill bit selection, since square pile section is rectangle, meet diameter of 1/2 length of square pile short side as small rotary digging drill bit as far as possible
(by taking square pile is having a size of 2.0m × 2.5m as an example, bond length 2.0m, so the diameter of small rotary digging drill bit is 100cm), at this time
It is best to excavate safety, quality, progress, benefit.
The selection of 1- bit model is too small
Do not increase hole number, then Core Soil is retained excessive, is unfavorable for big drill soil digging, also the deburring of the side's of being unfavorable for chisel head.
Increase hole number, can solve Core Soil and retain excessive problem, but benefit is poor, also seriously affects progress.
The selection of 2- bit model is excessive
Adjacent holes can be largely overlapped when excavating, and benefit is poor, and it is vertical to will cause pore-forming when rotary digging drill bit asymmetry stress
Degree exceeds specification tolerance range (sideslip).
4) the big drilling of rotary digging
The small rotary digging drill bit on Spiral digging machine is removed, big rotary digging drill bit is replaced with, is with 102 center of stake holes periphery graticule
The center of circle, the rotary digging 1 big drilling 104 on the ground for being located at 102 inside of stake holes periphery graticule；(referring to Fig. 6)
Herein, big rotary digging drill bit diameter is square pile bond length, i.e. 200cm.
5) square chisel head deburring, borehole cleaning
The big rotary digging drill bit on Spiral digging machine is removed, the side's of being replaced with chisel head 200 adjusts the angle outside the side's of allowing chisel head 200 and stake holes
All graticules 102 match, and close the rotary mode of Spiral digging machine, and Spiral digging machine cutting mode is native by 102 inner edge of stake holes periphery graticule
Deburring, borehole cleaning are carried out, the excavation of the stake holes 105 is completed；
Specifically, after the completion of Core Soil excavates, 10% non-cutouts only Yu in square pile edge, and side's chisel head 200 can be at this time
Easily carry out deburring.Square chisel head 200 is based on the transformation processing of Spiral digging machine Matching Bits, can adjust rapidly in conjunction with Spiral digging machine, assembly
The whole angle side of allowing chisel head 200 and stake holes periphery graticule 102 coincide, and Spiral digging machine is marked stake holes periphery with cutting mode (close and rotate)
The excision of 102 inner edge soil of line.
When cutting resistance is larger, illustrate in stake holes periphery graticule 102 that soil is excessive, Spiral digging machine replace big rotary digging drill bit into
Row takes native operation, and then 200 cutting edge of the side's of gaining chisel head, the square pile of deep, the wide 2.0m long 2.5m of general 12m are cut 3~4 times again
Stake holes 105 can be formed.(referring to Fig. 7)
Side's chisel head 200 includes: connector 201, and one end and the drilling rod of the Spiral digging machine are detachably connected；Square tube 202,
One end is fixedly connected with 201 outer wall of connector, and the other end is notch, if the incision of square tube 202 is provided at circumferentially spaced along notch
Dry bucket tooth 203, kerf and 102 size of stake holes are coincide；
6) stake holes drilled-hole inspecting installs framework of steel reinforcement, is poured pile foundation concrete, tears open, pulls out casing, form the square pile, complete
It constructs at the square pile.
Wherein, square pile framework of steel reinforcement is rigidly larger, and when production need to guarantee that accurate positioning, line style are straight.To ensure safety, prevent
Only crane topples, and lifts method lifting framework of steel reinforcement using double cranes " double flat balance beam ".
Reinforcement installation after the assay was approved, i.e. casting concrete, after concreting is fully completed, crane withdrawing steel shield in place
Cylinder.
Further, the connector 201 is connecting tube or connecting column, and the connector 201 is stretched far from Spiral digging machine one end
Enter 202 inside of square tube, the square tube 202 is fixedly connected by several junction steel plates 204 with 201 outer wall of connector；It is described
3 centimetres of thick steel plates are respectively adopted in square tube 202 and junction steel plate 204；204 one side wall of junction steel plate and 201 outer wall of connector
It is fixedly connected, 204 bottom surface of junction steel plate is fixedly connected with the 202 open end end face of square tube；Several 203 plate edges of connection steel
It is circumferential outside connector 201 to be intervally arranged.
The connector 201 can be used discarded rotary digging drill bit or with tube body similar in rotary digging drill bit shape or cylinder,
Connector 201 of being subject to can be assembled to Spiral digging machine drill bit connecting pin.
The design of junction steel plate 204, it is ensured that the secure fit between square tube 202 and connector 201, it is ensured that deburring, clear
The efficiency in hole.
Further, tie up welding steel plate 205 for corresponding at least one piece of every piece of junction steel plate 204, it is described tie up 205 bottom surface of welding steel plate with
202 open end end face of square tube is welded and fixed, and ties up 205 1 side end face of welding steel plate and is welded and fixed with 204 surface of junction steel plate.
Junction steel plate 204 and the matching design for tying up welding steel plate 205, it is ensured that the connection between square tube 202 and connector 201
Firmness.
To ensure rigidity, square tube 202, junction steel plate 204 tie up welding steel plate 205 and are all made of 3 centimetres of thick steel plates production.
Further, the quantity of the junction steel plate 204 is 8 pieces, circumferential outside connector 201 to be intervally arranged, composition side
In four faces of pipe 202, the corresponding 2 pieces of junction steel plates 204 in each face；Every piece corresponding 2 pieces of junction steel plate 204 are tied up welding steel plate 205,2
Welding steel plate 205 is tied up described in block is symmetrically disposed on 204 two sides of junction steel plate.
Each face is correspondingly connected with 2 pieces of junction steel plates 204, under the premise of guaranteeing firmness of the connection, increases square tube 202 and connects
Gap between 201 outer wall of fitting, it is ensured that deburring, borehole cleaning are gone on smoothly.
Further, the 202 outer wall perimeter of square tube from the cut ends of setting bucket tooth 203 to 202 other end of square tube gradually
Reduce.
The truncated rectangular pyramids structure of square tube 202 designs, and may make square tube 202 that 203 one end of bucket tooth is arranged and carries out deburring, borehole cleaning, side
Another open end of pipe 202 is not contacted with stake holes inner wall, guarantees the efficiency of deburring, borehole cleaning.
The construction method uses " Ring Cutting stays core local method " mode in similar constructing tunnel to excavate square pile, diagonal line
Lateral opening reduction collapse hole probability is excavated, not only ensure that safety, but also can maximumlly utilize Spiral digging machine fast pore-creating, last major diameter
Rotary digging drill bit excavates Core Soil, and so far square pile has largely excavated completions, edge Yu 10% non-cutouts (2.0 ×
2.5m).As long as it is native on a small quantity to cut hole edge when square chisel head deburring, borehole cleaning, it is ensured that hole quality also accelerates progress.To rich water
Layer or collapse hole processing, can prepare mud off, eliminate the very big security risk of manually digging hole under equal conditions.
Even if friction pile disposition is directed to slip mass formational situation, construction speed is particularly important at this time.This method only uses one
The plenty of time is just saved when Spiral digging machine compared with hand excavation, Spiral digging machine can also be increased and accelerate progress.
In the present embodiment 1, by taking the punishment of somewhere belt freeway K7+120~K7+420 side slope as an example, concrete construction method
It is as follows:
One, geological analysis:
1. clay has dilatancy.It is distributed in cutting area slope surface layer.0~7.5m of thickness, part are thicker.
2. cumulosol, containing a large amount of rotten plants, hard plastic state, high-compressibility.
3. gravel, gravel concentration 24.1~56.6%, for ingredient based on sandstone, filler is cohesive soil, silt.
4. silty clay, middle compressibility have dilatancy.
Two, processing scheme
104 antiskid square piles are set altogether.
First row 2.0 × 2.5m square pile increases setting 39 newly, and 5.5 meters of stake spacing, stake is 12 meters long, and pile plate wall is 6 meters high.
2.0 × 2.5m of second row square pile and diameter 2.0m circle stake are spaced apart from each other setting, and totally 41,5 meters of stake spacing, stake is long by 22
Rice, wherein square pile 21.
Third row's diameter 2.0m circle stake, totally 24.
Three, square pile scheme choice
There is residenter house above slip mass, promotes present treatment scheme that must complete as early as possible.2.0 × 2.5m square pile meter 50.
If with traditional artificial excavation square pile, to ensure that it is more that the duration puts into manpower, during happening the Spring Festival on New Year's Day, manpower at
This increasing, safety, quality increased risk.
If excavating square pile by the construction method (i.e. in a manner of mechanical excavation) of Spiral digging machine combination side provided by the invention chisel head, only
Need to increase input Spiral digging machine one (containing 2 manipulators) with two kinds of drill bits (the small rotary digging drill bit and diameter that diameter is 100cm be
The big rotary digging drill bit of 200cm), a kind of chisel head (square chisel head 200).Borehole is manually all cancelled, and the borehole duration substantially shortens.
Manually, duration contrast table
| Serial number | Digging mode | Number (name) | It excavates in operation (day) |
| 1 | Manually | 30 | 92~143 |
| 2 | Manually | 75 | 40~57 |
| 3 | It is mechanical | 2 | 24~46 (Spiral digging machines) |
| 4 | It is mechanical | 4 | 12~23 (two Spiral digging machines) |
Four, practice of construction situation
Square pile is excavated with a Spiral digging machine combination side chisel head, operation is excavated and amounts to time-consuming 37 days.
Hole is examined as a result, spending 30~240mm vertically, is much smaller than specification allowable error 500mm.
Embodiment 2
At the right width excavation collapsing of somewhere belt freeway BK0+220~BK0+422.11, EK0+000~EK0+120
For reason, concrete construction method is as follows:
One, geological condition
1. brown ash, canescence swelled ground meet water and easily collapse.
2. part side slope has been collapsed, there is crack on side slope top, has local villager house and place to change road above upper side slope.
Two, processing scheme
54 friction piles (2.0 × 2.5m) are set altogether, and stake is 12 meters long, and pile plate wall is 6 meters high.
Three, practice of construction situation
Square pile is excavated with Spiral digging machine combination side chisel head, operation is excavated and amounts to time-consuming 17 days.
Hole is examined as a result, spending 30~150mm vertically, is much smaller than specification allowable error 500mm.
Manually, duration contrast table
Remaining is the same as embodiment 1.
Although above having used general explanation and specific embodiment, the present invention is described in detail, at this
On the basis of invention, it can be made some modifications or improvements, this will be apparent to those skilled in the art.Therefore,
These modifications or improvements without departing from theon the basis of the spirit of the present invention are fallen within the scope of the claimed invention.
Claims (7)
1. a kind of Spiral digging machine combination side chisel head excavates square pile construction method, which is characterized in that the construction method includes following step
It is rapid:
1) casing is buried
Smooth location, stake position unwrapping wire determine the stake position of square pile, excavate in the stake position periphery of each square pile and match with casing shape
Rectangular foundation pit (100), lift casing (101) to stake position, surrounding backfill is simultaneously compacted on the outside of casing (101)；
2) stake position setting-out
On the ground being located on the inside of casing, according to measurement control stake point and design drawing, the stake holes periphery graticule of square pile is made
(102), the vertical interval between stake holes periphery graticule (102) and casing (101) inner wall is at least 3cm；
3) rotary digging small bore
Using Spiral digging machine, Spiral digging machine is spaced rotary digging 4 by small rotary digging drill bit on the ground on the inside of stake holes periphery graticule (102)
A small bore (103), 4 small bores (103) are spaced apart the ground for being set to and being located on the inside of stake holes periphery graticule (102) in matrix pattern
On face；
4) the big drilling of rotary digging
The small rotary digging drill bit on Spiral digging machine is removed, big rotary digging drill bit is replaced with, is circle with stake holes periphery graticule (102) center
The heart, the rotary digging 1 big drilling (104) on the ground being located on the inside of stake holes periphery graticule (102)；
5) square chisel head deburring, borehole cleaning
The big rotary digging drill bit on Spiral digging machine is removed, the side's of being replaced with chisel head (200) adjusts the angle outside the side's of allowing chisel head (200) and stake holes
All graticules (102) match, and close the rotary mode of Spiral digging machine, and Spiral digging machine cutting mode will be in stake holes periphery graticule (102)
Edge soil carries out deburring, borehole cleaning, completes the excavation of the stake holes (105)；
Side's chisel head (200) includes: connector (201), and one end and the drilling rod of the Spiral digging machine are detachably connected；Square tube
(202), one end is fixedly connected with connector (201) outer wall, and the other end is notch, and the incision of square tube (202) is along notch circumferential direction
Several bucket tooths (203) are arranged in interval, and kerf and stake holes (102) size are coincide；
6) stake holes drilled-hole inspecting installs framework of steel reinforcement, is poured pile foundation concrete, tears open, pulls out casing, forms the square pile, completes institute
State square pile construction.
2. Spiral digging machine combination side according to claim 1 chisel head excavates square pile construction method, which is characterized in that step 1)
In, casing (101) upper surface 30cm above ground level, deviation≤2cm between casing (101) center and stake holes (105) center, shield
Cylinder (101) central axis and stake holes (105) central axis deviation≤2cm, casing (101) spend deviation≤1%, the casing vertically
(101) inner circumferential is long is greater than square pile outer perimeter at least 80cm.
3. Spiral digging machine combination side according to claim 1 chisel head excavates square pile construction method, which is characterized in that step 3) institute
Diameter with small rotary digging drill bit is the 1/2 of square pile bond length；
In step 3), a quadrant of each small bore (103) corresponding stake holes periphery graticule (102), the rotary digging of small bore (103)
Method is diagonal line excavation method；
The diameter of big rotary digging drill bit 104 used in step 4) is identical as square pile bond length.
4. Spiral digging machine combination side according to claim 1 chisel head excavates square pile construction method, which is characterized in that the connection
Part (201) is connecting tube or connecting column, and the connector (201) is protruded on the inside of square tube (202) far from Spiral digging machine one end, the side
Pipe (202) is fixedly connected by several junction steel plates (204) with the connector (201) outer wall；
3 centimetres of thick steel plates are respectively adopted in the square tube (202) and junction steel plate (204)；
Junction steel plate (204) one side wall is fixedly connected with connector (201) outer wall, junction steel plate (204) bottom surface with it is described
Square tube (202) open end end face is fixedly connected；
Several connection steel (203) plates are circumferentially intervally arranged outside along connector (201).
5. Spiral digging machine combination side according to claim 4 chisel head excavates square pile construction method, which is characterized in that every piece of connection
Corresponding at least one piece of steel plate (204) is tied up welding steel plate (205), described to tie up welding steel plate (205) bottom surface and square tube (202) open end end face
It is welded and fixed, ties up (205) one side end face of welding steel plate and be welded and fixed with the junction steel plate (204) surface.
6. Spiral digging machine combination side according to claim 5 chisel head excavates square pile construction method, which is characterized in that the connection
The quantity of steel plate (204) is 8 pieces, is circumferentially intervally arranged outside along connector (201), in four faces for forming square tube (202), each
Face corresponds to 2 pieces of junction steel plates (204)；
Every piece corresponding 2 pieces of junction steel plate (204) are tied up welding steel plate (205), and welding steel plate (205) is tied up described in 2 pieces and is symmetrically disposed on connection
Steel plate (204) two sides.
7. Spiral digging machine combination side chisel head described according to claim 1 or 4 or 5 or 6 excavates square pile construction method, feature exists
In square tube (202) the outer wall perimeter is gradually reduced from the cut ends of setting bucket tooth (203) to the other end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910717931.6A CN110424383A (en) | 2019-08-05 | 2019-08-05 | A kind of Spiral digging machine combination side chisel head excavates square pile construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910717931.6A CN110424383A (en) | 2019-08-05 | 2019-08-05 | A kind of Spiral digging machine combination side chisel head excavates square pile construction method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110424383A true CN110424383A (en) | 2019-11-08 |
Family
ID=68412570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910717931.6A Pending CN110424383A (en) | 2019-08-05 | 2019-08-05 | A kind of Spiral digging machine combination side chisel head excavates square pile construction method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110424383A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691821A (en) * | 2020-06-10 | 2020-09-22 | 济南市市政工程设计研究院（集团）有限责任公司 | Square hole drilling device and working method |
| CN112267824A (en) * | 2020-10-16 | 2021-01-26 | 北京三一智造科技有限公司 | Pile foundation construction method |
| CN112360337A (en) * | 2020-11-04 | 2021-02-12 | 北京三一智造科技有限公司 | Pile foundation construction method |
| CN112796307A (en) * | 2021-01-04 | 2021-05-14 | 成都欣皓地基基础工程有限责任公司 | Square pile construction method of rotary drilling rig |
| CN113373925A (en) * | 2021-06-02 | 2021-09-10 | 中交一公局第一工程有限公司 | Method and device for installing steel sheet pile in sandstone stratum by rotary drilling rig |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007016563A (en) * | 2005-07-11 | 2007-01-25 | Shimizu Corp | Excavator |
| CN202300204U (en) * | 2011-10-17 | 2012-07-04 | 张志文 | Diamond drill bit for rotary drilling rig |
| CN107905236A (en) * | 2017-11-10 | 2018-04-13 | 中铁隧道集团处有限公司 | The construction method of friction pile churning driven fast pore-creating and concrete placings |
| CN109681116A (en) * | 2019-01-31 | 2019-04-26 | 四川省交通运输厅交通勘察设计研究院 | A kind of square pile rotary drilling device and its rotary digging method for realizing rectangular pore-forming |
-
2019
- 2019-08-05 CN CN201910717931.6A patent/CN110424383A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007016563A (en) * | 2005-07-11 | 2007-01-25 | Shimizu Corp | Excavator |
| CN202300204U (en) * | 2011-10-17 | 2012-07-04 | 张志文 | Diamond drill bit for rotary drilling rig |
| CN107905236A (en) * | 2017-11-10 | 2018-04-13 | 中铁隧道集团处有限公司 | The construction method of friction pile churning driven fast pore-creating and concrete placings |
| CN109681116A (en) * | 2019-01-31 | 2019-04-26 | 四川省交通运输厅交通勘察设计研究院 | A kind of square pile rotary drilling device and its rotary digging method for realizing rectangular pore-forming |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111691821A (en) * | 2020-06-10 | 2020-09-22 | 济南市市政工程设计研究院（集团）有限责任公司 | Square hole drilling device and working method |
| CN112267824A (en) * | 2020-10-16 | 2021-01-26 | 北京三一智造科技有限公司 | Pile foundation construction method |
| CN112360337A (en) * | 2020-11-04 | 2021-02-12 | 北京三一智造科技有限公司 | Pile foundation construction method |
| CN112796307A (en) * | 2021-01-04 | 2021-05-14 | 成都欣皓地基基础工程有限责任公司 | Square pile construction method of rotary drilling rig |
| CN113373925A (en) * | 2021-06-02 | 2021-09-10 | 中交一公局第一工程有限公司 | Method and device for installing steel sheet pile in sandstone stratum by rotary drilling rig |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110424383A (en) | A kind of Spiral digging machine combination side chisel head excavates square pile construction method | |
| CN106703028B (en) | Large-diameter Manual Excavation Pile precast splice type steel retaining wall and its construction technology | |
| CN108265734A (en) | A kind of sand and gravel stratum impervious wall construction method | |
| CN109372517A (en) | One kind is suitable for wearing water supplying pipe construction method under upper soft lower hard compound stratum tunnel | |
| CN105442605B (en) | Extract PHC and be reused in deep foundation pit supporting construction method | |
| CN110359465A (en) | Pattern foundation pit supporting structure interlocking pile comprehensive construction method | |
| CN104612179B (en) | Through the construction method of the diaphram wall of super thick silty sand ground | |
| CN105155550A (en) | Construction method for digging deep foundation pit in large-thickness highly weathered sandstone stratum in combined supporting mode | |
| CN105133558B (en) | Deep water drift net platform and its construction method | |
| CN105569051A (en) | Foundation pit support system of sandy pebble boulder geological stratification and construction method | |
| CN110424460A (en) | A kind of tunnel open excavation construction technology | |
| CN114108649A (en) | Foundation pit reinforcing construction method for mucky soil layer | |
| CN106284311B (en) | A kind of dry efficient construction technology of pore-forming cast-in-place concrete pile of rotary drilling rig | |
| CN103758132B (en) | The construction technology of the cantilever soldier pile retaining structure on slope is put in a kind of combination | |
| CN110080779A (en) | Tunnel tunnel bottom karst cave treatment construction method | |
| CN106149745A (en) | A kind of truss type steel tube grouting pile basis and construction method thereof | |
| CN109610473A (en) | A kind of construction method of the large-scale pool structure foundation pit supporting system of municipal administration | |
| CN108842764A (en) | A kind of Stirring formula anchor tube construction method | |
| CN104594371A (en) | Reinforcing structure of existing foundation bottom plate and construction method thereof | |
| CN108086307A (en) | Compound mini pile is perfused in concrete filled steel tube borehole | |
| CN106245668A (en) | A kind of truss-like pile foundation and construction method thereof | |
| CN207794067U (en) | Compound mini pile is perfused in concrete filled steel tube borehole | |
| CN216689372U (en) | Deep agitating unit of soil body perturbation | |
| CN215562597U (en) | Platform for assisting pile foundation construction | |
| CN104988981B (en) | A kind of well construction method of riding on present situation operation shield method drainage pipeline |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191108 |