CN109723373A - A kind of light weathered granite stratum rotary digging drilling hole bored concrete pile construction method - Google Patents
A kind of light weathered granite stratum rotary digging drilling hole bored concrete pile construction method Download PDFInfo
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- CN109723373A CN109723373A CN201811601410.6A CN201811601410A CN109723373A CN 109723373 A CN109723373 A CN 109723373A CN 201811601410 A CN201811601410 A CN 201811601410A CN 109723373 A CN109723373 A CN 109723373A
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Abstract
The present invention relates to a kind of light weathered granite stratum rotary digging drilling hole bored concrete pile construction methods, it is characterized in that, the following steps are included: step S1: removing the sundries in place within the scope of design stake position, smooth construction site guarantees the levelling of the land of rotary drilling rig pedestal and compacting；Step S2: according to design drawing, stake position center is made in in-site measurement setting-out；Step S3: shield-tube embedment；Step S4: drilled pile pore-forming；Step S5: reinforcing bar cage hoisting；Step S6: decentralization conduit；Step S7: underwater concrete is poured.The present invention carries out gentle breeze rockhole pile driving construction using gear wheel cartridge type coring bit, solves the problems, such as to have achieved the purpose that the rapid construction of micro- decomposed rock stratum in micro- decomposed rock stratum constructional difficulties with rotary drilling rig；It is used by using various rotary digging drill bit mix and match, enables rotary drilling rig in bad ground fast pore-creating, greatly accelerate pore-forming efficiency.
Description
Technical field
The present invention relates to a kind of light weathered granite stratum rotary digging drilling hole bored concrete pile construction methods.
Background technique
Rotary drilling rig is aobvious in drilled pile construction field as relatively advanced construction machinery a kind of in bored pile construction
Apparent superiority is shown.Compared with common punching pile machine, rotary drilling rig speed of fulfiling hole is fast, stratum is applied widely, stake contraposition
Convenience is accurate, environmental pollution is small, and construction achieves good effect.But for the gentle breeze of more complete stratification crack agensis
Granitic formation, using rotary drilling rig construction, there are bigger difficulty.
Summary of the invention
Present invention seek to address that the above problem, provides a kind of light weathered granite stratum rotary digging drilling hole bored concrete pile pore-forming and apply
Work technique solves the problems, such as rotary drilling rig in micro- decomposed rock stratum constructional difficulties, accelerates pore-forming efficiency.
A kind of light weathered granite stratum rotary digging drilling hole bored concrete pile construction method, which is characterized in that including following step
It is rapid:
Step S1: removing the sundries in place within the scope of design stake position, and smooth construction site guarantees rotary drilling rig pedestal place
Smooth and compacting；
Step S2: according to design drawing, stake position center is made in in-site measurement setting-out；
Step S3: shield-tube embedment；
Step S4: drilled pile pore-forming；
Step S5: reinforcing bar cage hoisting；
Step S6: decentralization conduit；
Step S7: underwater concrete is poured.
Preferably, the step S3 includes the following steps,
Step S31: after stake position center determines, 4 interim control stakes are set in casing surrounding appropriate location, and hand over cross
Restore stake position center in the center of cross wires；
Step S32: when casing is buried in digging, by the leveling of hole bottom, the center location of casing is then found out, is scheduled on shield with cross hairs
Cylinder top or bottom, then moving casing is overlapped the center location of casing with stake position center, is examined with horizontal ruler or plumb bob
It looks into, guarantees casing verticality.
Preferably, the step S4 includes the following steps,
Step S41: the walking function and mast jib lubbing mechanism being had by oneself by rotary drilling rig enable drilling tool correctly in place
To stake position center, drilling tool is placed to casing center using mast guiding lowering drill pipes；
Step S42: starting to drill after rotary drilling rig is in place, and drilling tool is crept at a slow speed in casing bottom low pressure, is drilled into casing bottom
Start normal drilling behind lower 1.0m or so place；
Step S43: it when drilling tool drilling to completion, replaces and is removed the sediment of foot of hole using scouring bit dry
Only.
Preferably, in the step S42, the power head device of rotary drilling rig for drilling tool provide torque, rotary drilling rig plus
Plus-pressure is passed to drilling tool by way of the power head device that pressurizes by pressure device.
Preferably, the step S42 includes the following steps,
Step S421: when drilling tool in miscellaneous fill layer, rush diluvium facies fine sand layer, rush diluvium facies medium-sand seam, muck soil
When layer, farinose argillic horizon and completely weathered granite stratum are drilled, drilling tool is bored using unilateral into native bucket tooth fishing sand borer head
Hole, when construction by it is unilateral drop to predetermined depth into native bucket tooth fishing sand borer head after, rotate and unilateral fish out sand borer head into native bucket tooth and add
Pressure, the soil of spin-up is squeezed into the unilateral drilling pipe into native bucket tooth fishing sand borer head, after soil is crowded with drilling pipes, is inverted unilateral into the fishing of native bucket tooth
Sand borer head, it is unilateral to be closed into native bucket tooth fishing sand borer head bottom and propose that drilling is outer, it then automatically turns on unilateral husky into the fishing of native bucket tooth
Drill bit bottom switch, pours out spoir；
Step S422: when drilling to strong weathered granite layer and middle weathering sial, drilling tool is bored using embedding rock pick
Cylinder carries out, and first passes through the bit drill revolution fragmented rock body of embedding rock pick drilling pipe, then will be broken into native bucket tooth fishing sand borer head by unilateral
Detritus body rotary digging goes out ground；
Step S423: when drilling to light weathered granite rock stratum, drilling tool uses gear wheel cartridge type coring bit, in churning driven
Under the powerful torque effect of bar, rotates the brill bucket of gear wheel cartridge type coring bit and be further driven to gear wheel cartridge type coring bit slowly
Light weathered granite stratum is cut in rotation, until core column bores bucket full of entire, then is all around swung to and fro brill by drilling rod
Monolith core column is finally taken out under core column and brill barrel side frictional resistance interlock action, is so recycled come the core column that fractures by cylinder
Back and forth, until drilling to completion.Pay attention to being adjusted to hole perpendicularity in drilling process, stake depth cannot be less than projected depth.
Preferably, crane disposably transfers steel reinforcement cage using two o'clock lifting method, and drilling pile concrete is filled using tremie method
Infuse underwater concrete.
The present invention has the advantage that carrying out gentle breeze rockhole pile driving construction using gear wheel cartridge type coring bit, solve
With rotary drilling rig micro- decomposed rock stratum constructional difficulties the problem of, the rapid construction of micro- decomposed rock stratum is achieved the purpose that；It is logical
It crosses and is used using various rotary digging drill bit mix and match, enable rotary drilling rig in bad ground fast pore-creating, greatly accelerate pore-forming
Efficiency.
Detailed description of the invention
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technical description to be briefly described.It should be evident that the accompanying drawings in the following description is only this
A kind of embodiment of invention for those of ordinary skill in the art without creative efforts, can be with
It is extended according to the attached drawing of offer and obtains other implementation attached drawings.
Fig. 1: flow chart of the invention；
Specific embodiment
The invention will be further described with example with reference to the accompanying drawing:
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, and for explaining only the invention, and is not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
It, can also be indirectly connected through an intermediary to be to be connected directly.It for the ordinary skill in the art, can be specific
Situation understands the concrete meaning of above-mentioned term in the present invention.
As shown in Figure 1, present embodiments providing a kind of light weathered granite stratum rotary digging drilling hole bored concrete pile drilling construction work
Skill, which comprises the following steps:
Step S1: removing the sundries in place within the scope of design stake position, and smooth construction site guarantees rotary drilling rig pedestal place
Smooth and compacting；
Step S2: according to design drawing, stake position center is made in in-site measurement setting-out；
Step S3: shield-tube embedment；
Step S4: drilled pile pore-forming；
Step S5: reinforcing bar cage hoisting；
Step S6: decentralization conduit；
Step S7: underwater concrete is poured.
Preferably, the step S3 includes the following steps,
Step S31: after stake position center determines, 4 interim control stakes are set in casing surrounding appropriate location, and hand over cross
Restore stake position center in the center of cross wires；
Step S32: when casing is buried in digging, by the leveling of hole bottom, the center location of casing is then found out, is scheduled on shield with cross hairs
Cylinder top or bottom, then moving casing is overlapped the center location of casing with stake position center, is examined with horizontal ruler or plumb bob
It looks into, guarantees casing verticality.
Preferably, the step S4 includes the following steps,
Step S41: the walking function and mast jib lubbing mechanism being had by oneself by rotary drilling rig enable drilling tool correctly in place
To stake position center, drilling tool is placed to casing center using mast guiding lowering drill pipes；
Step S42: starting to drill after rotary drilling rig is in place, and drilling tool is crept at a slow speed in casing bottom low pressure, is drilled into casing bottom
Start normal drilling behind lower 1.0m or so place；
Step S43: it when drilling tool drilling to completion, replaces and is removed the sediment of foot of hole using scouring bit dry
Only.
Preferably, in the step S42, the power head device of rotary drilling rig for drilling tool provide torque, rotary drilling rig plus
Plus-pressure is passed to drilling tool by way of the power head device that pressurizes by pressure device.
Preferably, the step S42 includes the following steps,
Step S421: when drilling tool in miscellaneous fill layer, rush diluvium facies fine sand layer, rush diluvium facies medium-sand seam, muck soil
When layer, farinose argillic horizon and completely weathered granite stratum are drilled, drilling tool is bored using unilateral into native bucket tooth fishing sand borer head
Hole, when construction by it is unilateral drop to predetermined depth into native bucket tooth fishing sand borer head after, rotate and unilateral fish out sand borer head into native bucket tooth and add
Pressure, the soil of spin-up is squeezed into the unilateral drilling pipe into native bucket tooth fishing sand borer head, after soil is crowded with drilling pipes, is inverted unilateral into the fishing of native bucket tooth
Sand borer head, it is unilateral to be closed into native bucket tooth fishing sand borer head bottom and propose that drilling is outer, it then automatically turns on unilateral husky into the fishing of native bucket tooth
Drill bit bottom switch, pours out spoir；
Step S422: when drilling to strong weathered granite layer and middle weathering sial, drilling tool is bored using embedding rock pick
Cylinder carries out, and first passes through the bit drill revolution fragmented rock body of embedding rock pick drilling pipe, then will be broken into native bucket tooth fishing sand borer head by unilateral
Detritus body rotary digging goes out ground；
Step S423: when drilling to light weathered granite rock stratum, drilling tool uses gear wheel cartridge type coring bit, in churning driven
Under the powerful torque effect of bar, rotates the brill bucket of gear wheel cartridge type coring bit and be further driven to gear wheel cartridge type coring bit slowly
Light weathered granite stratum is cut in rotation, until core column bores bucket full of entire, then is all around swung to and fro brill by drilling rod
Monolith core column is finally taken out under core column and brill barrel side frictional resistance interlock action, is so recycled come the core column that fractures by cylinder
Back and forth, until drilling to completion.Pay attention to being adjusted to hole perpendicularity in drilling process, stake depth cannot be less than projected depth.
Preferably, crane disposably transfers steel reinforcement cage using two o'clock lifting method, and drilling pile concrete is filled using tremie method
Infuse underwater concrete.Pay attention to being adjusted to hole perpendicularity in drilling process, stake depth cannot be less than projected depth.
Preferably, crane disposably transfers steel reinforcement cage using two o'clock lifting method, and drilling pile concrete is filled using tremie method
Infuse underwater concrete.
The present invention is described by way of example above, but the present invention is not limited to above-mentioned specific embodiment, all to be based on
Any changes or modifications that the present invention is done are fallen within the scope of the claimed invention.
Claims (5)
1. a kind of light weathered granite stratum rotary digging drilling hole bored concrete pile construction method, which comprises the following steps:
Step S1: removing the sundries in place within the scope of design stake position, and smooth construction site guarantees the levelling of the land of rotary drilling rig pedestal
And compacting；
Step S2: according to design drawing, stake position center is made in in-site measurement setting-out；
Step S3: shield-tube embedment；
Step S4: drilled pile pore-forming；
Step S5: reinforcing bar cage hoisting；
Step S6: decentralization conduit；
Step S7: underwater concrete is poured.
2. a kind of light weathered granite stratum rotary digging drilling hole bored concrete pile construction method as described in claim 1, feature
Be: the step S3 includes the following steps,
Step S31: after stake position center determines, 4 interim control stakes are set in casing surrounding appropriate location, and with cross wire
Center restore stake position center；
Step S32: when casing is buried in digging, by the leveling of hole bottom, the center location of casing is then found out, is scheduled on casing top with cross hairs
Portion or bottom, then moving casing is overlapped the center location of casing with stake position center, with horizontal ruler or plumb bob inspection, protects
Demonstrate,prove casing verticality.
3. a kind of light weathered granite stratum rotary digging drilling hole bored concrete pile construction method as described in claim 1, feature
Be: the step S4 includes the following steps,
Step S41: the walking function and mast jib lubbing mechanism being had by oneself by rotary drilling rig enable drilling tool correctly to arrive stake in place
Drilling tool is placed to casing center using mast guiding lowering drill pipes by position center；
Step S42: start to drill after rotary drilling rig is in place；
Step S43: it when drilling tool drilling to completion, replaces and is removed the sediment of foot of hole using scouring bit clean.
4. a kind of light weathered granite stratum rotary digging drilling hole bored concrete pile construction method as claimed in claim 3, feature
Be: in the step S42, the power head device of rotary drilling rig provides torque for drilling tool, the pressurizing device of rotary drilling rig passes through
Plus-pressure is passed to drilling tool by the mode of pressurization power head device.
5. a kind of light weathered granite stratum rotary digging drilling hole bored concrete pile construction method as claimed in claim 3, feature
Be: the step S42 includes the following steps,
Step S421: when drilling tool in miscellaneous fill layer, rush diluvium facies fine sand layer, rush diluvium facies medium-sand seam, silt soil strata, powder
When matter argillic horizon and completely weathered granite stratum are drilled, drilling tool is drilled using unilateral into native bucket tooth fishing sand borer head, is applied
Working hour by it is unilateral drop to predetermined depth into native bucket tooth fishing sand borer head after, rotate unilateral fish out into native bucket tooth and sand borer head and pressurize, revolve
The soil risen is squeezed into the unilateral drilling pipe into native bucket tooth fishing sand borer head, after soil is crowded with drilling pipes, is inverted unilateral into native bucket tooth fishing sand borer
Head, it is unilateral to be closed into native bucket tooth fishing sand borer head bottom and propose that drilling is outer, it then automatically turns on unilateral into native bucket tooth fishing sand borer head
Bottom switch pours out spoir；
Step S422: when drilling is to strong weathered granite layer and middle weathering sial, drilling tool using embedding rock pick drilling pipe into
Row first passes through the bit drill revolution fragmented rock body of embedding rock pick drilling pipe, then fishes out sand borer head for kata-rocks into native bucket tooth by unilateral
Body rotary digging goes out ground；
Step S423: when drilling to light weathered granite rock stratum, drilling tool uses gear wheel cartridge type coring bit, strong in rotary drill rod
Under large torque effect, rotates the brill bucket of gear wheel cartridge type coring bit and be further driven to gear wheel cartridge type coring bit rotation cutting
Drilling pipe until core column bores bucket full of entire, then is swung to and fro all around by drilling rod to fracture in light weathered granite stratum
Monolith core column is finally taken out under core column and brill barrel side frictional resistance interlock action, is looped back and forth like this by core column, until
Drilling to completion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811601410.6A CN109723373B (en) | 2018-12-26 | 2018-12-26 | Hole forming construction process for rotary drilling bored pile in slightly weathered granite stratum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811601410.6A CN109723373B (en) | 2018-12-26 | 2018-12-26 | Hole forming construction process for rotary drilling bored pile in slightly weathered granite stratum |
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| CN109723373B CN109723373B (en) | 2020-09-25 |
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Cited By (7)
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| CN111021948A (en) * | 2019-12-30 | 2020-04-17 | 深圳市盛业地下工程有限公司 | Pile foundation combination equipment for rapid pore-forming of complex geology |
| CN111101865A (en) * | 2019-12-30 | 2020-05-05 | 深圳市盛业地下工程有限公司 | High efficiency drilling equipment |
| CN111560949A (en) * | 2020-06-08 | 2020-08-21 | 浙江万里建设工程有限公司 | Cast-in-place pile construction method |
| CN112901074A (en) * | 2021-03-10 | 2021-06-04 | 中交第三航务工程局有限公司宁波分公司 | Rock-socketed drilling pore-forming process of marine large-diameter inclined pile rotary excavator |
| CN113006055A (en) * | 2021-03-04 | 2021-06-22 | 苏州科大岩土工程技术有限公司 | Cast-in-situ bored pile construction method |
| CN116025282A (en) * | 2022-12-17 | 2023-04-28 | 中交建筑集团有限公司 | Composite pore-forming construction method for multi-boulder stratum oversized-diameter bored pile |
| CN116927178A (en) * | 2023-07-21 | 2023-10-24 | 广东省水利水电第三工程局有限公司 | Construction method of granite boulder geological underground diaphragm wall |
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| CN111021948A (en) * | 2019-12-30 | 2020-04-17 | 深圳市盛业地下工程有限公司 | Pile foundation combination equipment for rapid pore-forming of complex geology |
| CN111101865A (en) * | 2019-12-30 | 2020-05-05 | 深圳市盛业地下工程有限公司 | High efficiency drilling equipment |
| CN111560949A (en) * | 2020-06-08 | 2020-08-21 | 浙江万里建设工程有限公司 | Cast-in-place pile construction method |
| CN113006055A (en) * | 2021-03-04 | 2021-06-22 | 苏州科大岩土工程技术有限公司 | Cast-in-situ bored pile construction method |
| CN112901074A (en) * | 2021-03-10 | 2021-06-04 | 中交第三航务工程局有限公司宁波分公司 | Rock-socketed drilling pore-forming process of marine large-diameter inclined pile rotary excavator |
| CN112901074B (en) * | 2021-03-10 | 2024-02-13 | 中交第三航务工程局有限公司 | Rock-socketed drilling pore-forming technology of offshore large-diameter inclined pile rotary digging machine |
| CN116025282A (en) * | 2022-12-17 | 2023-04-28 | 中交建筑集团有限公司 | Composite pore-forming construction method for multi-boulder stratum oversized-diameter bored pile |
| CN116927178A (en) * | 2023-07-21 | 2023-10-24 | 广东省水利水电第三工程局有限公司 | Construction method of granite boulder geological underground diaphragm wall |
| CN116927178B (en) * | 2023-07-21 | 2024-05-28 | 广东省水利水电第三工程局有限公司 | Construction method of granite boulder geological underground diaphragm wall |
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