CN108179741A - A kind of screw rod pile and combined drilling tool and its engineering method - Google Patents
A kind of screw rod pile and combined drilling tool and its engineering method Download PDFInfo
- Publication number
- CN108179741A CN108179741A CN201810254578.8A CN201810254578A CN108179741A CN 108179741 A CN108179741 A CN 108179741A CN 201810254578 A CN201810254578 A CN 201810254578A CN 108179741 A CN108179741 A CN 108179741A
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- drilling rod
- types
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- rod
- thread
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/56—Screw piles
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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
- E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes 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
- E02D5/48—Piles varying in construction along their length, i.e. along the body between head and shoe, e.g. made of different materials along their length
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- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
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- 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/22—Rods or pipes with helical structure
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D2200/00—Geometrical or physical properties
- E02D2200/14—Geometrical or physical properties resilient or elastic
- E02D2200/143—Geometrical or physical properties resilient or elastic helically or spirally shaped
Abstract
A kind of screw rod pile and combined drilling tool and its engineering method, relate generally to building field.By setting with the screw rod pile for expanding header structure, and design can form the Combined drill lamps structure of enlarged footing so that having extremely strong bearing capacity according to the screw rod pile that the engineering method of combined drilling tool is constructed, and it can obtain and squeeze the soil body laborsaving, province's work(, the advantageous effect that venting capability is apparent, pile concrete compactness is high, pile quality is excellent.Therefore, above-mentioned screw rod pile and combined drilling tool and its engineering method have important application value.
Description
Technical field
The present invention relates to building field, in particular to a kind of screw rod pile and combined drilling tool and its engineering method.
Background technology
At present, in screw rod pile in the prior art, the problem of being primarily present is that bearing capacity does not reach perfect condition, studies carefully
Its reason, traditional screw rod pile make the bearing capacity and soil layer of stake due to single in the molding of stake and pile-forming equipment and its engineering method
Between stress bond stress it is inadequate, pile-soil stress performance degree is insufficient.
Invention content
The purpose of the present invention is to provide a kind of screw rod pile, with high bearing capacity.
Another object of the present invention is to provide a kind of combined drilling tool and its engineering method, between soil body extruding and stake soil
Moulding, it is laborsaving, save that work(, venting capability are apparent, pile concrete compactness is high, pile quality is excellent, other raisings are held
Carrying power has apparent effect.
What the embodiment of the present invention was realized in：
A kind of screw rod pile, the pile body of the screw rod pile may be alternatively arranged as full thread or at least one section of screw thread or from top to bottom
Or half spiral shell, half straight-bar from top to bottom；
Pile body is additionally provided at least one enlarged footing.
Further, in preferred embodiments of the present invention, pile body is not provided with as full thread or at least one section of screw thread,
Or during half half straight-bar of spiral shell from top to bottom or from top to bottom, to wait cylindrical types, another part is a pile body part for screw rod pile
Enlarged footing.
Further, in preferred embodiments of the present invention, the outer diameter of enlarged footing is more than the outer diameter of pile body other parts,
Pile body other parts refer to the pile body part that enlarged footing is removed along pile body length direction.
A kind of combined drilling tool, the drilling rod tube core of the combined drilling tool are the channel for pouring into a mould concrete；
The drilling rod of combined drilling tool has more piece and detachable combines, and the type of drilling rod at least has three classes, three classes
The first kind in drilling rod includes：
A type drilling rods, the light wall surface of A type drilling rods wait outer diameters along its length；
The second class in three classes drilling rod includes：
Type B drilling rod, the types such as Type B drilling rod and the inside and outside tube wall of A type drilling rods are isometrical, and the drilling-rod external wall of Type B drilling rod is with continuous
Without tooth thread；
C-type drilling rod, the types such as c-type drilling rod and the inside and outside tube wall of Type B drilling rod are isometrical, and the drilling-rod external wall of c-type drilling rod is with continuous
Without tooth thread, the major diameter of thread of c-type drilling rod is more than the major diameter of thread of Type B drilling rod；
D type drilling rods, the types such as D types drilling rod and the inside and outside tube wall of Type B drilling rod are isometrical, and the drilling-rod external wall of D type drilling rods is with continuous
Without tooth thread, the major diameter of thread of D type drilling rods is more than the major diameter of thread of c-type drilling rod；
E type drilling rods, the types such as E types drilling rod and the inside and outside tube wall of Type B drilling rod are isometrical, and the drilling-rod external wall of E type drilling rods is with continuous
Without tooth thread, the major diameter of thread of E type drilling rods is more than the major diameter of thread of D type drilling rods；
Third class in three classes drilling rod includes：
B1 type drilling rods, the types such as B1 types drilling rod and the inside and outside tube wall of A type drilling rods are isometrical, and the drilling-rod external wall of B1 type drilling rods is with company
Continuous toothed thread；
C1 type drilling rods, the types such as C1 types drilling rod and the inside and outside tube wall of B1 type drilling rods are isometrical, and the drilling-rod external wall of C1 type drilling rods carries
Continuous toothed thread, the major diameter of thread of C1 type drilling rods are more than the major diameter of thread of B1 type drilling rods；
D1 type drilling rods, the types such as D1 types drilling rod and the inside and outside tube wall of B1 type drilling rods are isometrical, and the drilling-rod external wall of D1 type drilling rods carries
Continuous toothed thread, the major diameter of thread of D1 type drilling rods are more than the major diameter of thread of C1 type drilling rods；
E1 type drilling rods, the types such as E1 types drilling rod and the inside and outside tube wall of B1 type drilling rods are isometrical, and the drilling-rod external wall of E1 type drilling rods carries
Continuous toothed thread, the major diameter of thread of E1 type drilling rods are more than the major diameter of thread of D1 type drilling rods.
Further, in preferred embodiments of the present invention, the basic combination of combined drilling tool according to or can be with
Arbitrary 2 kinds or arbitrary 3 kinds or arbitrary 4 kinds or arbitrary 5 kinds according to being included in three classes drilling tool type carry out group from small to large
It closes.
Further, in preferred embodiments of the present invention, combined drilling tool by 2 or 2 or more fall vertebra degree it is coaxial
Connection or the coaxially connected composition drilling tool of the ranks such as vertebra degree, wherein, can be formed when ranks are coaxially connected etc., ranks are coaxially connected
Section waits the drilling rod more piece that coaxially connected section of ranks refer to have on same section homotype to combine.
Further, in preferred embodiments of the present invention, the Combined drill that is combined according to basic combination
Tool is including at least A+B types drilling rod, A+C types drilling rod, A+D types drilling rod, A+E types drilling rod, A+B+C types drilling rod, A+B+C+D types drilling rod, A
+ B+C+D+E types drilling rod, A+nB types drilling rod, B+nC types drilling rod, B+nC types drilling rod, nB types drilling rod, A+B1 types drilling rod, A+C1 types bore
Bar, A+D1 types drilling rod, A+E1 types drilling rod, A+B1+C1 types drilling rod, A+B1+C1+D1 types drilling rod, A+B1+C1+D1+E1 types drilling rod, A
+ nB1 types drilling rod, B+nC1 types drilling rod, B1+nC1 types drilling rod, nB1 types drilling rod, B+B1 types drilling rod, B+nB1 types drilling rod, nB+B1 types
Drilling rod, nB+nb1 types drilling rod and A+nB+nB1 type drilling rods, wherein, n represents radical, and n is more than 1.
Further, in preferred embodiments of the present invention, on the major diameter of thread of the drilling rod with continuous toothed thread
External tooth can be set to the arbitrary section of drilling rod in axial direction.
A kind of engineering method of combined drilling tool as described above, including：
Drilling tool is under the range whole process of design stake after drilled as holes, in whole process is promoted, Pouring concrete at the same time pile；
Or it is partly promoted after the lower drilled as holes of whole process, Pouring concrete at the same time, part pile, then the crowded concrete presentation of lower brill is mixed
Solidifying soil enlarged footing, then promoted, Pouring concrete at the same time completes the pore-forming molding pile of stake；
Or whole lower drilled as holes, repeatedly part promote casting concrete pile, then it is lower bore to squeeze concrete concrete is presented expand
Major part is promoted again again, is completed the molding of stake and is poured pore-forming molding pile, so as to form one or more enlarged footing pile bodies.
Further, in preferred embodiments of the present invention, by the industry control device that is equipped with to the Combined drill of driving
Tool rotary power and the vertical power of combined drilling tool of driving are controlled, synchronous with drilling rod rotation when boring or promoted under realizing,
It is asynchronous or synchronous intersect technique with asynchronous, then pore-forming, complete soil body screw thread, non-threaded molding；Concrete passes through brill
In pipe and drill bit outlet casting concrete, drilling tool rotation are above carried with non-rotating, pile；
Wherein, during promotion with drilling rod rotation synchronize refer to drilling rod and often rotate a circle, drilling rod often rises or one helical pitch of lower brill；
Asynchronous to refer to that drilling rod often rotates a circle, drilling rod often rises or lower bore is more than or less than a helical pitch.
Further, in preferred embodiments of the present invention, it is deep that drilling rod get into design stake, using synchronous or
Asynchronous technique promotes drilling tool and ensures drilling tool in the range of corresponding stake forward or backwards, so as to make combined drilling tool repeatedly
It moves up and down, Pouring concrete at the same time forms the screw rod with one or more enlarged footings with high solidity and high-bearing capacity
Stake.
Further, it in preferred embodiments of the present invention, further includes：
In casting concrete stake, residual gas in discharge pipe to drilling tool exit orifice space.
Further, it is dynamic up and down to driving drilling rod rotary power and driving drilling rod in preferred embodiments of the present invention
Power is controlled, realize it is lower synchronous asynchronous with drilling rod rotation or synchronous with the asynchronous technique intersected when boring or being promoted,
It is realized by automatic control technology or non-automatic control technology；
Wherein, it synchronizes and refers to that drilling rod often rotates a circle, drilling rod often rises or one helical pitch of lower brill；It is asynchronous to refer to drilling rod
It often rotates a circle, drilling rod often rises or lower bore is more than or less than a helical pitch.
Further, in preferred embodiments of the present invention, automatic control technology is Numeric Control Technology；Non-automatic control skill
Art generates " self tapping " phenomenon and completes to the soil body into sky into spiral shell pile using being bored under drilling tool.
The advantageous effect of the embodiment of the present invention is：Screw rod pile and combined drilling tool provided in an embodiment of the present invention and its engineering method
The Combined drill lamps structure of enlarged footing can be formed with the screw rod pile and design for expanding header structure by setting, so as to make
Obtain has extremely strong bearing capacity, and it can be obtained to the soil body according to the screw rod pile that the engineering method of combined drilling tool is constructed
Squeeze laborsaving, province's work(, the advantageous effect that venting capability is apparent, pile concrete compactness is high, pile quality is excellent.Therefore, originally
The screw rod pile and combined drilling tool and its engineering method that inventive embodiments provide have important application value.
Description of the drawings
It in order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range, for those of ordinary skill in the art, without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 provides the piles with different body structure schematic diagram of screw rod pile for the embodiment of the present invention；
Fig. 2 provides the piles with different body structure schematic diagram of screw rod pile for the embodiment of the present invention；
Fig. 3 provides the piles with different body structure schematic diagram of screw rod pile for the embodiment of the present invention；
Fig. 4 provides the structure diagram of the A type drilling rods in combined drilling tool for the embodiment of the present invention；
Fig. 5 provides the structure diagram of the B1 type drilling rods in combined drilling tool for the embodiment of the present invention；
Fig. 6 provides the structure diagram of the C1 type drilling rods in combined drilling tool for the embodiment of the present invention；
Fig. 7 provides the structure diagram of the D1 type drilling rods in combined drilling tool for the embodiment of the present invention；
Fig. 8 provides the structure diagram of the E1 type drilling rods in combined drilling tool for the embodiment of the present invention；
Fig. 9 provides the structure diagram of the F1 type drilling rods in combined drilling tool for the embodiment of the present invention；
Figure 10 provides the structure diagram of the G1 type drilling rods in combined drilling tool for the embodiment of the present invention；
Figure 11 provides the structure diagram of the A+B1 type drilling rods in combined drilling tool for the embodiment of the present invention；
Figure 12 provides the structure diagram of the A+C1 type drilling rods in combined drilling tool for the embodiment of the present invention；
Figure 13 provides the structure diagram of the A+D1 type drilling rods in combined drilling tool for the embodiment of the present invention；
Figure 14 provides the structure diagram of the A+E1 type drilling rods in combined drilling tool for the embodiment of the present invention；
Figure 15 provides the structure diagram of the B+B1 type drilling rods in combined drilling tool for the embodiment of the present invention.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is
Part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be configured to arrange and design with a variety of different.
Therefore, below the detailed description of the embodiment of the present invention to providing in the accompanying drawings be not intended to limit it is claimed
The scope of the present invention, but be merely representative of the present invention selected embodiment.Based on the embodiments of the present invention, this field is common
Technical staff's all other embodiments obtained without creative efforts belong to the model that the present invention protects
It encloses.
It should be noted that：Similar label and letter represents similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need to that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that the orientation or position of the instructions such as term " interior ", " outer ", " level "
Relationship be based on orientation shown in the drawings or position relationship or the invention product using when the orientation or position usually put
Relationship is for only for ease of the description present invention and simplifies description rather than instruction or imply that signified device or element must have
There is specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.In addition, term " the
One ", " second ", " third " etc. are only used for distinguishing description, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or integrally connect
It connects；Can be mechanical connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, it can
To be the connection inside two elements.For the ordinary skill in the art, can above-mentioned term be understood with concrete condition
Concrete meaning in the present invention.
Incorporated by reference to reference to Fig. 1, Fig. 2 and Fig. 3, an embodiment of the present invention provides a kind of screw rod piles, are related to building field.
It should be noted that screw rod pile provided in an embodiment of the present invention and general such as screw grout pile, the perfusion of half screw, rotary squeezing
Bored concrete pile, screw cast-in-place pile body contour are different, and the technology formed has the variation of matter, have very high bearing capacity.
Further, the pile body of screw rod pile provided in an embodiment of the present invention is optionally provided with full thread shape or at least
One section of thread shape or from top to bottom or half spiral shell, half straight-bar shape, also, pile body is additionally provided at least one expansion from top to bottom
Head.It should be noted that when pile body be not provided with full thread shape or at least one section of thread shape from top to bottom or from it is lower to
On half half straight-bar shape of spiral shell when, to wait cylindrical types, another part is enlarged footing for the pile body part of screw rod pile.
Further, the outer diameter of enlarged footing provided in an embodiment of the present invention is more than the outer diameter of pile body other parts, needs
Bright, pile body other parts refer to the pile body part that enlarged footing is removed along pile body length direction.
Incorporated by reference to reference to Fig. 4, Fig. 5, Fig. 6, Fig. 7 and Fig. 8, the embodiment of the present invention provides a kind of combined drilling tool, combined type
The drilling rod tube core of drilling tool is the channel for pouring into a mould concrete, and drilling rod has more piece and detachable combines, the type of drilling rod
At least there are three classes：
The first kind in three classes drilling rod includes：A type drilling rods, the light wall surface of A type drilling rods wait outer diameters along its length.
The second class in three classes drilling rod includes：Type B drilling rod, the types such as Type B drilling rod and the inside and outside tube wall of A type drilling rods are isometrical, Type B
The drilling-rod external wall of drilling rod is carried continuously without tooth thread；C-type drilling rod, the types such as c-type drilling rod and the inside and outside tube wall of Type B drilling rod are isometrical, c-type
The drilling-rod external wall of drilling rod is with continuously without tooth thread, the major diameter of thread of c-type drilling rod is more than the major diameter of thread of Type B drilling rod；D types bore
Bar, the types such as D types drilling rod and the inside and outside tube wall of Type B drilling rod are isometrical, and the drilling-rod external wall of D type drilling rods is with continuously without tooth thread, D types bore
The major diameter of thread of bar is more than the major diameter of thread of c-type drilling rod；E type drilling rods, the types such as E types drilling rod and the inside and outside tube wall of Type B drilling rod are isometrical,
The drilling-rod external wall of E type drilling rods is with continuously without tooth thread, the major diameter of thread of E type drilling rods is more than the major diameter of thread of D type drilling rods；
Third class in three classes drilling rod includes：B1 type drilling rods, the types such as B1 types drilling rod and the inside and outside tube wall of A type drilling rods are isometrical,
The drilling-rod external wall of B1 type drilling rods carries continuous toothed thread；C1 type drilling rods, the types such as C1 types drilling rod and the inside and outside tube wall of B1 type drilling rods
Isometrical, for the drilling-rod external wall of C1 type drilling rods with continuous toothed thread, the major diameter of thread of C1 type drilling rods is more than the screw thread of B1 type drilling rods
Outer diameter；D1 type drilling rods, the types such as D1 types drilling rod and the inside and outside tube wall of B1 type drilling rods are isometrical, and the drilling-rod external wall of D1 type drilling rods is with continuous
Toothed thread, the major diameter of thread of D1 type drilling rods are more than the major diameter of thread of C1 type drilling rods；E1 type drilling rods, E1 types drilling rod and B1 type drilling rods
The types such as inside and outside tube wall it is isometrical, with continuous toothed thread, the major diameter of thread of E1 type drilling rods is more than the drilling-rod external wall of E1 type drilling rods
The major diameter of thread of D1 type drilling rods.It should be noted that external tooth on the major diameter of thread of the drilling rod with continuous toothed thread can be with
It is set to the arbitrary section of drilling rod in axial direction.
Further, it can also be bored in above-mentioned introduction according to A1 types drilling rod, B1 types drilling rod, C1 types in the embodiment of the present invention
The mentality of designing method of bar, D1 types drilling rod and E1 type drilling rods and so on, (the isometrical E1 types that are more than of outer diameter bore design F1 types drilling rod
Bar), G1 types drilling rod (outer diameter isometrical be more than F1 types drilling rod) etc., Fig. 9 and Figure 10 can be respectively referred to.
It is emphasized that the basic combination of combined drilling tool provided in an embodiment of the present invention according to or can be according to
Arbitrary 2 kinds or arbitrary 3 kinds or arbitrary 4 kinds or arbitrary 5 kinds included in three classes drilling tool type are combined from small to large.And
And vertebra degree is coaxially connected or the ranks such as vertebra degree are coaxially connected forms it is further preferred that combined drilling tool is fallen by 2 or 2 or more
Drilling tool, wherein, coaxially connected section of the ranks such as can be formed when ranks are coaxially connected, coaxially connected section of ranks is waited to refer at same section
On can have homotype drilling rod more piece combine.It should be noted that combined drilling tool by 2 or 2 or more fall vertebra degree coaxially connect
It connects or the coaxially connected composition drilling tool of the ranks such as vertebra degree, is the preferred embodiment of the invention, but works as in other embodiments of the present invention
In, it is not limited in combinations of the above mode, specifically, flexible arbitrary combination can be carried out according to practical construction requirement.
Further, A+B types drilling rod, A+ are included at least according to the combined drilling tool that above-mentioned basic combination combines
C-type drilling rod, A+D types drilling rod, A+E types drilling rod, A+B+C types drilling rod, A+B+C+D types drilling rod, A+B+C+D+E types drilling rod, A+nB types
Drilling rod, B+nC types drilling rod, B+nC types drilling rod, nB types drilling rod, A+B1 types drilling rod, A+C1 types drilling rod, A+D1 types drilling rod, A+E1 types bore
Bar, A+B1+C1 types drilling rod, A+B1+C1+D1 types drilling rod, A+B1+C1+D1+E1 types drilling rod, A+nB1 types drilling rod, B+nC1 types bore
Bar, B1+nC1 types drilling rod, nB1 types drilling rod, B+B1 types drilling rod, B+nB1 types drilling rod, nB+B1 types drilling rod, nB+nb1 types drilling rod and A+
(wherein, A+B1 types drilling rod, A+C1 types drilling rod, A+D1 types drilling rod, A+E1 types drilling rod and B+B1 types drilling rod please for nB+nB1 types drilling rod
Respectively refer to Figure 11, Figure 12, Figure 13, Figure 14 and Figure 15), wherein, n represents radical, and n is more than 1.It should be noted that combination
Formula drilling tool can also carry out the combination of other diversified forms according to engineering specific requirement and execution conditions in other embodiments.
Correspondingly, the embodiment of the present invention also provides a kind of engineering method of combined drilling tool as described above, specifically includes：
Firstly the need of explanation, required according to the mechanics index of physics of each layer soil of engineering geological condition and the internal force of stake,
Carry out the design of screw rod pile；According to the resemblance of designed screw rod pile and engineering geological condition, the physics for including each layer soil
Mechanical index and block diagram design the basic combination of combined drilling tool, according to above-mentioned three classes and its above type of drilling rod
The coaxial connection of echelon carries out the combination of various drilling tools from small to large；In addition, the front end of combined drilling tool may be provided for
Expand the device of drilling rod wall outer diameter, for adjusting toothed thread expanded letter, in order to form the screw rod pile of shallow thread.
Further, drilling tool is under the range whole process of design stake after drilled as holes, in whole process is promoted, Pouring concrete at the same time
Pile；Or it is partly promoted after whole lower drilled as holes, Pouring concrete at the same time, part pile, then lower brill squeezes concrete and coagulation is presented
Native enlarged footing, then promoted, Pouring concrete at the same time completes the pore-forming molding pile of stake；Or whole lower drilled as holes, repeatedly partly carry
Casting concrete pile is risen, then lower brill squeezes concrete presentation concrete enlarged footing and promoted again again, the molding for completing stake is built up with pouring
Hole forming pile, so as to form one or more enlarged footing pile bodies.It should be noted that the operation of specific bored pile can root
It is flexibly selected according to actual conditions.
Further, the embodiment of the present invention by the industry control device that is equipped with to the combined drilling tool rotary power of driving and drive
The vertical power of dynamic combined drilling tool is controlled, synchronous asynchronous or synchronous with drilling rod rotation when realizing lower brill or being promoted
Intersect technique, then pore-forming, completion soil body screw thread, non-threaded molding with asynchronous；Concrete passes through in drilling pipe and drill bit outlet
Casting concrete, drilling tool rotation are above carried with non-rotating, pile；Wherein, during promotion with drilling rod rotation synchronize refer to drilling rod and often rotate one
All then drilling rod often rises or one helical pitch of lower brill；Asynchronous to refer to that drilling rod often rotates a circle, drilling rod often rises or lower brill is more than
Or less than one helical pitch.
Further, in the embodiment of the present invention, design stake depth is got by the way that drilling rod is carried out down, using synchronous or asynchronous
Technique promote drilling tool forward or backwards to ensure drilling tool in the range of corresponding stake, so as to make combined drilling tool repeatedly on move down
Dynamic, Pouring concrete at the same time forms the screw rod pile with one or more enlarged footings with high solidity and high-bearing capacity.
Further, the engineering method of the combined drilling tool in the embodiment of the present invention further includes：When concrete-pile is built in cast, row
Residual gas in outlet pipe is to drilling tool exit orifice space.It is to make the closely knit of concrete it should be noted why doing so
Degree is improved.
Further, in embodiments of the present invention, power above and below driving drilling rod rotary power and driving drilling rod is controlled
System, realizes lower synchronous asynchronous with drilling rod rotation or synchronous with the asynchronous technique intersected when boring or being promoted, and is by automatic
Control technology or non-automatic control technology are realized.Wherein, synchronize and refer to that drilling rod often rotates a circle, drilling rod often rise or under
Bore a helical pitch；Asynchronous to refer to that drilling rod often rotates a circle, drilling rod often rises or lower bore is more than or less than a helical pitch.
Further, in embodiments of the present invention, automatic control technology is Numeric Control Technology；Non-automatic control technology is to utilize
" self tapping " phenomenon that generates is bored under drilling tool to complete to the soil body into sky into spiral shell pile.Pass through automatic control technology and non-automatic control
Technology processed can flexibly be selected according to operating mode, improve the adaptability for working condition of drilling tool and the construction efficiency of whole engineering method.
It should be noted that it is exemplified below two kinds of specific embodiments：
Embodiment 1
First, according to above-mentioned five kinds and its coaxial connection of echelon from small to large of above type of drilling rod, it is respectively combined each
Kind drilling tool simultaneously connects drill bit, completes drilling tool and the connection of concrete duct and concrete pump machine.
Second step：Lower stake is to projected depth.
Third walks：On mention design enlarged footing range, while complete concrete being poured from bottom hole to enlarged footing range.
4th step：Under get into enlarged footing bottom, above carry to design stake top, while pour coagulation in the whole process being again stepped up
Soil pours coagulation to the concrete pile body extruding in established enlarged footing range, forms the stake with enlarged footing again.
5th step：Reinforcing bar is rapidly inserted into concrete.
Embodiment 2
The first step：According to above-mentioned five kinds and its coaxial connection of echelon from small to large of above type of drilling rod, group respectively
It closes various drilling tools and connects drill bit, complete drilling tool and the connection of concrete duct and concrete pump machine.
Second step：With Numeric Control Technology driving rotary power and drive vertical power, make the rotation of drilling tool with to bottom offset
It keeps synchronizing, lower stake is implemented as profiled holes to projected depth；
Third walks：With Numeric Control Technology driving rotary power and drive vertical power, make drilling tool reversely rotate with to upper
It moves and keeps synchronizing, above mention design enlarged footing range, while concrete is completed being poured from bottom hole to enlarged footing range.
4th step：With Numeric Control Technology driving rotary power and drive vertical power, make the rotation of drilling tool with to bottom offset
It keeps synchronizing, enlarged footing bottom projected depth is got under, with Numeric Control Technology driving rotary power and drive vertical power, make
The rotation of drilling tool is synchronous with shifting up holding above to be carried to second enlarged footing range, while complete casting concrete to first
The concreting of enlarged footing lower end to second enlarged footing upper end.
5th step：With Numeric Control Technology driving rotary power and drive vertical power, make the rotation of drilling tool with to bottom offset
It keeps synchronizing, the 2nd enlarged footing bottom is got under.With Numeric Control Technology driving rotary power and vertical power is driven, makes brill
Tool reverse rotation is synchronous with shifting up holding, above mentions stake top absolute altitude, while complete concreting pile in global extent,
Meanwhile complete extruding and formation to two enlarged footings.
6th step：Reinforcing bar is rapidly inserted into concrete.
It should be noted that it is such, it, can also be according to operating mode successively according to the engineering method of the above-mentioned offer of the embodiment of the present invention
Analogize, so as to form the screw rod pile of similar other high-bearing capacities, such as rotary squeezing bored concrete pile, Screw Pile.
Expand in conclusion screw rod pile provided in an embodiment of the present invention and combined drilling tool and its engineering method have by setting
The screw rod pile and design of header structure can form the Combined drill lamps structure of enlarged footing so that according to combined drilling tool
The screw rod pile that engineering method is constructed has extremely strong bearing capacity, and it can obtain and squeeze the soil body laborsaving, province's work(, ventilation
The advantageous effect that performance is apparent, pile concrete compactness is high, pile quality is excellent.Therefore, spiral shell provided in an embodiment of the present invention
Bar stake and combined drilling tool and its engineering method have important application value.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, that is made any repaiies
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (14)
1. a kind of screw rod pile, which is characterized in that the pile body of the screw rod pile may be alternatively arranged as full thread or at least one section of spiral shell
Line or from top to bottom or from top to bottom half spiral shell, half straight-bar；
The pile body is additionally provided at least one enlarged footing.
2. screw rod pile according to claim 1, which is characterized in that the pile body is not provided with as the full thread or described
When at least one section of screw thread or half spiral shell, half straight-bar from top to bottom or from top to bottom, the pile body of the screw rod pile one
It is divided into and waits cylindrical types, another part is the enlarged footing.
3. screw rod pile according to claim 1 or 2, which is characterized in that the outer diameter of the enlarged footing be more than the pile body its
The outer diameter of its part, the pile body other parts refer to the pile body part that the enlarged footing is removed along the pile body length direction.
4. a kind of combined drilling tool, which is characterized in that the drilling rod tube core of the combined drilling tool is for pouring into a mould the logical of concrete
Road；
The drilling rod of the combined drilling tool has more piece and detachable combines, and the type of the drilling rod at least has three
Class, the first kind in drilling rod described in three classes include：
A type drilling rods, the light wall surface of the A types drilling rod wait outer diameters along its length；
The second class in drilling rod described in three classes includes：
Type B drilling rod, the types such as the Type B drilling rod and the inside and outside tube wall of the A types drilling rod are isometrical, the drilling-rod external wall of the Type B drilling rod
With continuously without tooth thread；
C-type drilling rod, the types such as the c-type drilling rod and the inside and outside tube wall of the Type B drilling rod are isometrical, the drilling-rod external wall of the c-type drilling rod
With continuously without tooth thread, the major diameter of thread of the c-type drilling rod is more than the major diameter of thread of the Type B drilling rod；
D type drilling rods, the types such as the D types drilling rod and the inside and outside tube wall of the Type B drilling rod are isometrical, the drilling-rod external wall of the D types drilling rod
With continuously without tooth thread, the major diameter of thread of the D types drilling rod is more than the major diameter of thread of the c-type drilling rod；
E type drilling rods, the types such as the E types drilling rod and the inside and outside tube wall of the Type B drilling rod are isometrical, the drilling-rod external wall of the E types drilling rod
With continuously without tooth thread, the major diameter of thread of the E types drilling rod is more than the major diameter of thread of the D types drilling rod；
Third class in drilling rod described in three classes includes：
B1 type drilling rods, the types such as the B1 types drilling rod and the inside and outside tube wall of the A types drilling rod are isometrical, outside the drilling rod of the B1 types drilling rod
Cornice has continuous toothed thread；
C1 type drilling rods, the types such as the C1 types drilling rod and the inside and outside tube wall of the B1 types drilling rod are isometrical, the drilling rod of the C1 types drilling rod
Outer wall carries continuous tooth shape screw thread, and the major diameter of thread of the C1 types drilling rod is more than the major diameter of thread of the B1 types drilling rod；
D1 type drilling rods, the types such as the D1 types drilling rod and the inside and outside tube wall of the B1 types drilling rod are isometrical, the drilling rod of the D1 types drilling rod
Outer wall carries continuous tooth shape screw thread, and the major diameter of thread of the D1 types drilling rod is more than the major diameter of thread of the C1 types drilling rod；
E1 type drilling rods, the types such as the E1 types drilling rod and the inside and outside tube wall of the B1 types drilling rod are isometrical, the drilling rod of the E1 types drilling rod
Outer wall carries continuous tooth shape screw thread, and the major diameter of thread of the E1 types drilling rod is more than the major diameter of thread of the D1 types drilling rod.
5. according to the combined drilling tool described in claim 4, which is characterized in that the basic combination of the combined drilling tool
According to or can according to included in drilling tool type described in three classes arbitrary 2 kinds it is arbitrary 3 kinds or it is arbitrary 4 kinds or it is arbitrary 5 kinds from
It is small to being combined greatly.
6. according to the combined drilling tool described in claim 5, which is characterized in that the combined drilling tool is by 2 or 2 or more
Vertebra degree is coaxially connected or the coaxially connected composition drilling tool of the ranks such as vertebra degree, wherein, can be formed when ranks are coaxially connected
Coaxially connected section of rank, the drilling rod more piece that coaxially connected section of ranks is waited to refer to have on same section homotype combine.
7. according to the combined drilling tool described in claim 5, which is characterized in that combine to obtain according to the basic combination
The combined drilling tool include at least A+B types drilling rod, A+C types drilling rod, A+D types drilling rod, A+E types drilling rod, A+B+C types drilling rod, A
+ B+C+D types drilling rod, A+B+C+D+E types drilling rod, A+nB types drilling rod, B+nC types drilling rod, B+nC types drilling rod, nB types drilling rod, A+B1 types
Drilling rod, A+C1 types drilling rod, A+D1 types drilling rod, A+E1 types drilling rod, A+B1+C1 types drilling rod, A+B1+C1+D1 types drilling rod, A+B1+C1+
D1+E1 types drilling rod, A+nB1 types drilling rod, B+nC1 types drilling rod, B1+nC1 types drilling rod, nB1 types drilling rod, B+B1 types drilling rod, B+nB1 types
Drilling rod, nB+B1 types drilling rod, nB+nb1 types drilling rod and A+nB+nB1 type drilling rods, wherein, n represents radical, and n is more than 1.
8. according to the combined drilling tool described in claim 4-7 any one, which is characterized in that the institute with continuous toothed thread
The arbitrary section of the drilling rod in axial direction can be set to by stating the external tooth on the major diameter of thread of drilling rod.
9. a kind of engineering method of combined drilling tool as claimed in claim 4, which is characterized in that it includes：
The drilling tool is under the range whole process of design stake after drilled as holes, in whole process is promoted, Pouring concrete at the same time pile；
Or it is partly promoted after whole lower drilled as holes, Pouring concrete at the same time, part pile, then lower brill squeezes concrete and concrete is presented
Enlarged footing, then promoted, Pouring concrete at the same time completes the pore-forming molding pile of stake；
Or whole lower drilled as holes, casting concrete pile is repeatedly partly promoted, then lower bore squeezes concrete presentation concrete enlarged footing
It is promoted again again, complete the molding of stake and pours pore-forming molding pile, so as to form one or more enlarged footing pile bodies.
10. the engineering method of combined drilling tool according to claim 9, which is characterized in that by the industry control device that is equipped with to driving
Dynamic combined drilling tool rotary power and the vertical power of combined drilling tool of driving are controlled, with boring when realizing lower brill or being promoted
Bar rotation is synchronous asynchronous or synchronous intersects technique, then pore-forming, completion soil body screw thread, non-threaded molding with asynchronous；It is mixed
Solidifying soil is above carried by drilling pipe and drill bit outlet casting concrete, drilling tool rotation with non-rotating, pile；
Wherein, during promotion with drilling rod rotation synchronize refer to the drilling rod and often rotate a circle, the drilling rod often rises or lower bores one
A helical pitch；It is described it is asynchronous refer to that the drilling rod often rotates a circle, the drilling rod often rise or it is lower bore be more than or less than one
Helical pitch.
11. the engineering method of combined drilling tool according to claim 9, which is characterized in that the drilling rod get into set
It is deep to count stake, the drilling tool is promoted using synchronous or asynchronous technique forward or backwards and ensures the drilling tool in the correspondence stake
In the range of, so as to which the combined drilling tool be made to move up and down repeatedly, Pouring concrete at the same time, which is formed, has high solidity and height
The screw rod pile with one or more enlarged footings of bearing capacity.
12. the engineering method of combined drilling tool according to claim 9, which is characterized in that it is further included：
In casting concrete stake, residual gas in discharge pipe to drilling tool exit orifice space.
13. according to the engineering method of the combined drilling tool described in claim 9, which is characterized in that driving drilling rod rotary power and
Power is controlled driving drilling rod up and down, realize lower synchronous asynchronous with drilling rod rotation when boring or the being promoted or synchronization and
The technique of asynchronous intersection is realized by automatic control technology or non-automatic control technology；
Wherein, described synchronize refers to that drilling rod often rotates a circle, and drilling rod often rises or one helical pitch of lower brill；It is described asynchronous to refer to
Drilling rod often rotates a circle, and drilling rod often rises or lower bore is more than or less than a helical pitch.
14. the engineering method of combined drilling tool according to claim 13, which is characterized in that the automatic control technology is numerical control
Technology；The non-automatic control technology using under drilling tool bore generate " self tapping " phenomenon come complete to the soil body into sky into spiral shell into
Stake.
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| CN201810254578.8A CN108179741A (en) | 2018-03-26 | 2018-03-26 | A kind of screw rod pile and combined drilling tool and its engineering method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810254578.8A CN108179741A (en) | 2018-03-26 | 2018-03-26 | A kind of screw rod pile and combined drilling tool and its engineering method |
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