CN1844589A - Static mud protecting wall type drilling and boring process employing rotary drilling rig - Google Patents
Static mud protecting wall type drilling and boring process employing rotary drilling rig Download PDFInfo
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- CN1844589A CN1844589A CN 200510065435 CN200510065435A CN1844589A CN 1844589 A CN1844589 A CN 1844589A CN 200510065435 CN200510065435 CN 200510065435 CN 200510065435 A CN200510065435 A CN 200510065435A CN 1844589 A CN1844589 A CN 1844589A
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Abstract
The invention discloses a method for static slurry protecting wall drilling hole molding of rotational hole driller, which comprises: area distribution, post sampling, removing blocks, digging protecting cylinder, inserting tube, drilling hole, embedding protecting cylinder, checking the position of post, measuring the mixing parameter of slurry, removing drilling slag, drilling a hole with driller, checking the hole diameter. The invention can replace traditional manual-experiment construction method which need slurry protective wall in the hole forming process. Wherein, the drilling head is moving between the hole bottom and the ground in the drilling process, with easy operation, simplified process and lower cost.
Description
Technical field
The present invention relates to a kind of static mud protecting wall drilling and forming hole method construction technology of rotary digging drilling machine, rotary digging drilling machine has that power is big, output torque is big, axial compression is big, maneuverability, efficiency of construction height and multifunctional characteristics.Rotary digging drilling machine adapts to the soil geological conditions in the most of area of China, the scope of application is wide, substantially can satisfy bridge construction, the use of engineerings such as highrise building ground foundation. particularly be applicable to the loose pore-forming job engineering that easily caves in, has underground water distribution, the unsettled stratum of hole wall of rotary digging drilling machine.
Background technology
Rotary digging drilling machine is the construction machinery of pore-forming operation in a kind of suitable building foundation engineering, is widely used in ground foundation construction workss such as urban construction, highway bridge, highrise building.The still supreme both at home and abroad so far grade standard issue of the construction technology standard of rotary digging drilling machine, the revolving of present domestic rotary digging drilling machine dug drilling and forming hole technology and is: revolve that to scrape out the hole at first be to turn round broken ground by the bucket formula drill bit that the bottom has a valve, and in the drill bit of directly it being packed into, and then drill bit is proposed to unload outside the hole soil by rotary digging drilling machine lifting appliance and telescopic drill rod, move in circles like this, constantly fetch earth and unload soil, until drilling to completion.Yet rotary digging drilling machine is adopting the artificial experience construction methods at present to loose caving ground, when underground water distribution stratum, the construction of the unsettled stratum of hole wall are arranged, its shortcoming is: construction is got up very inconvenient, rotary digging drilling machine is prone to various faults, and when pore-forming, also be prone to the fault of various pore-formings, cause the damage of rotary digging drilling machine self parts, not only influence programming, and can cause very big economic loss.
Summary of the invention
The purpose of this invention is to provide a kind of easy construction, construction technology is reliable, guarantees that rotary digging drilling machine is to loose caving ground, trouble-free rotary digging drilling machine static mud protecting wall drilling and forming hole method construction technology when underground water distribution stratum, the construction of the unsettled stratum of hole wall are arranged.
The object of the present invention is achieved like this: this construction technology mainly by place arrangement technology, stake position setting-out technology, road surface and obstruction cut technology, dig casing technology, inserting tube technology, the technology in place of holing, bury casing technology underground, review stake position technology, the mud mixing parametric is measured technology, boring mud is cleared technology, rig is holed dark technology, hole depth aperture acceptance checking technology, pay technology forms.The place arrangement technology is according to designing requirement reasonable Arrangement construction plant, earlier smooth place, remove foreign material, change except that weak soil, ram beat closely knit.After carrying out the place leveling, organize titular measurement setting-out personnel, all piles position is emitted, fix cross protection stake, carry out to measure and check, and record setting-out data are put on record; During planning travelling line, sidewalk and bore position are maintained a certain distance, in order to avoid it is stable to influence hole wall; The construction plant be the nonirrigated farmland and also construction period groundwater table when original ground is following, with levelling of the land compacting, remove foreign material; When the place was positioned at shallow water, employing was installed rotary digging drilling machine at end face after building the island, builds the island end face and exceeds about working water level 1.0m; The rotary digging drilling machine chassis should not directly place on unsound the banketing, in order to avoid produce differential settlement; Stake position setting-out technology is to carry out the position setting-out of pile foundation by " principle from integral body to the part ", during the absolute altitude setting-out of holing, should in time check the absolute altitude of setting-out.Adopt the position of each point of the accurate setting-out of total powerstation, make its error in code requirement.It is to the cleaning of the setting-out stake position that will dig before holing that road surface and obstruction cut technology, cutting before being holed when hard in the stratum that dig.Dig casing technology and be after road surface and obstruction cut technology setting-out stake position is dug the hole body of putting into casing earlier.Inserting tube technology is the city underground utilities planning that should consult construction before boring earlier.The technology in place of holing is whether the performance state of precheck rotary digging drilling machine is good, guarantees that rotary digging drilling machine is working properly.Burying steel cylinder technology underground is to bury casing underground under the prerequisite of accurately setting-out, buries the method and the requirement of casing underground, should meet the regulation of JTJ041-89.If boring is carried out on land, the then general method of digging pit that adopts, relatively simple.It is to revolve the beginning of digging rotary digging drilling machine construction that the steel casing is buried work underground, and steel casing plan-position and verticality should be accurate, the steel casing on every side and the casing footing should be tight, waterproof.Should be marked in the end, hole to the position of rotary digging drilling machine boring by the control stake setting-out of location when burying the steel casing underground.The steel casing is hung in the hole again, find out the home position of steel casing, in steel casing top or bottom, mobile then steel casing makes steel casing center overlap with rotary digging drilling machine drill center position with cross hairs.With spirit level or plumb bob inspection, make the steel casing hard straight simultaneously.After this promptly around the steel casing symmetrically, the clay of backfill optimum moisture content equably, compaction in layers, reach best compactness.To guarantee its verticality and to prevent mud loss and displacement, drop,, should dig dark or soil removal and replacement if the casing substratum is not a cohesive soil, behind the clay of hole end backfilling compaction 300-500mm thickness, lay casing again, in order to avoid seepage landslide in mouth place at the bottom of the casing is rammed and will be prevented steel casing deflection when filling out.The casing colligation flitch symmetry of answering suitable for reading hangs tight, and prevents from down to scurry.The making of steel casing and the principle of burying underground: length 4m adopt the steel plate of thick 4～6mm to make with interior steel casing, and length adopts thick 6～8mm steel plate to make greater than the steel casing of 4m; The steel casing is embedding when dark, adopts more piece steel casing to connect and uses, and type of attachment adopts welding, guarantees during welding that the joint circle is suitable, satisfies the requirement of rigidity, intensity and leakproof simultaneously; The internal diameter of steel casing should be greater than bit diameter, and concrete size is selected for use by designing requirement; The steel casing depth of burying should satisfy design and relevant specification requirement.If the stake hole is in the river, should the steel casing is embedding to the harder closely knit soil layer more than the dark 0.5m; The steel casing is risen out working water level or groundwater table 1.5-2.0m, and exceeds construction ground 0.3m; Before the steel casing is buried underground, accurately measure setting-out earlier, guarantee that steel casing top side location deviation is not more than 5cm, guarantee in burying underground that steel casing gradient is not more than 1%; Before burying the steel casing underground, adopt the absolute altitude position at the bottom of the drill bit of larger caliber is drilled into earlier casing in advance after, propose drilling bucket and the steel casing be pressed into the precalculated position with drilling bucket.With coarse-grained soil backfill casing outer periphery, backfill is closely knit.Review stake position technology and be when excavate the stake position reinspection of setting-out, reach qualified in the stake position.It is to adopt preparation mud as pile holes protecting wall that the mud mixing parametric is measured technology, and mud is crossed and can not be floated the quarrel influence when rare and creep into, and mud is attached on hole wall and the reinforcing bar when feeding-up, influences the pile foundation quality of concrete.The mud of preparation should satisfy the requirement of following table:
Engineering mud property index sees Table
| Item | Project | Performance indications | The method of inspection | |||
| 1 | Proportion | Cohesive soil | 1.05 | Mud weight indicator | ||
| Sand | 1.1 | |||||
| Cobble | 1.15 | |||||
| 2 | Viscosity | Cohesive soil | 15～16s | 50000/70000 funnel method | ||
| Sand | 16～18s | |||||
| Cobble | 18～ | |||||
| 3 | Sand factor | ＜4％-6％ | ||||
| 4 | Colloidity | ＞95％ | The | |||
| 5 | Fluid loss | ＜30mL/30min | The | |||
| 6 | Mudcake thickness | 1～3mm/30min | The | |||
| 7 | Gel strength | 1min20～30mg/cm2 10min50～100mg/cm2 | The | |||
| 8 | Stability | ＜.03g/ | ||||
| 9 | | 8～9 | The PH test paper | |||
| Water: swell soil: alkali, CMC | Cohesive soil | 100∶6∶3∶0.8 | ||||
| Sand | 100∶10∶1.8∶0.8 | |||||
| Cobble | 100∶15∶1.8∶0.8 | |||||
It is the zone that boring mud is in time cleared up appointment that boring mud is cleared technology.After drilling bucket is rotated extruding and is full of boring mud, face of land, the waste car of packing into are proposed for it.The rig dark technology of holing is to need mud offs; During the rotary digging drilling machine drilling construction, key switch is got to the power supply shelves, the display of rotary digging drilling machine shows the rotary digging drilling machine markup picture, enters the work picture by any key.The brill mast that carries out rotary digging drilling machine earlier stand up mast and vertical adjustment promptly at first move on to rotary digging drilling machine the bore operation position, and the display of rotary digging drilling machine shows mast work picture.But Real Time Observation is to the X-axis of mast, the skew of Y direction from mast work picture.The electric handle of operation rotary digging drilling machine is raised to the duty position with mast from the travel position position, in this process, the controller of rotary digging drilling machine is by gathering electric handle and obliquity sensor signal, by mathematical operation, the proportioning valve that output signal drives hydraulic jack is realized the closed loop mast control of standing up.Realize the mast mast that steadily stands up synchronously.Gather limit switch signal simultaneously, to boring the mast angle protection that tilts in the mast process of standing up.Before bore operation, need mast is positioned setting, generally speaking, do the straight hole operation, so need carry out vertical adjustment mast.Vertical adjustment can be divided into manual vertical adjustment, automatic vertical adjustment dual mode.In the relative zero-bit of mast ± 5 ° of scopes, just can carry out automatic vertical adjustment operation by the automatic vertical adjustment button on the display; And mast can only carry out manual vertical adjustment work by the electric handle on inching button on the display or the left control box when exceeding relative zero-bit ± 5 ° scope.In the vertical adjustment process, operating personnel can monitor the location status of mast in real time by the mast working interface of display, make mast finally reach the desired location of operation pore-forming.In work progress, also need the inclined hole operation sometimes.Operating personnel need be undertaken by the automatic navigation button on the display setting zero-bit certainly, and then carry out identical vertical adjustment operation.Directly enter main working interface by indicator knob during static mud protecting wall drilling and forming hole method construction drill, carry out bore operation then.Earlier drilling bucket is landed during boring, carry out clear operation by the reset button on the display, the home position of record rig drill bit, at this moment, display shows the bar shaped post and the numeral of the current location of boring, operating personnel can monitor the real work position of boring, each drilling depth position and hole depth position by display, thus the operation bore operation.In operation process, demonstration---unit head pressure, moulding pressure, the master file pressure of three virtual instruments that operating personnel can be by main interface are monitored the duty of hydraulic system in real time.The rotation perforate, as creeping into power, a drilling depth billet shape post shows the drilling depth of current drill bit with drill bit deadweight and pressurization, and the strip post dynamically shows the movement position of drill bit, and the numeral of hole depth shows the total depth in this hole.When drilling bucket be rotated the extruding be full of boring mud after, it is proposed the face of land, operation revolution operating grip makes machine forward the position of waste car to, with the boring mud waste car of packing into, after finishing, align the button machine by the self-return on the operation display and get back to the bore operation position automatically, or make machine manually get back to the bore operation position by manual operation revolution operating grip.This duty can monitor by the sign of the return in the main interface of display.After the rotation perforate, with drill bit deadweight and pressurization as creeping into power.After drilling bucket is rotated extruding and is full of boring mud, it is proposed the face of land, the waste car of packing into observes monitoring also record boring geological condition simultaneously.The geological condition recording process is the relevant table record of geological condition record by corresponding geological; In time fill in " borehole log table " during the rotary digging drilling machine drilling construction, main fill substance is: job, drilling depth, rate of penetration, and absolute altitude at the bottom of the hole; " borehole log table " is responsible for filling in by the special messenger, when relieving handover record should be arranged; The geological condition record is conscientiously carried out in variation and soil layer sampling according to rotary digging drilling machine boring rate of penetration, draws hole stake log sheet, and the hole stake of every place must have soil layer geological sample box, indicates that in box each sample is in residing position of hole stake and sample time; In time submit a report asking for when rotary digging drilling machine hole stake log sheet and different design and manage on-the-spot affirmation, determine whether to change design by designing unit; To in time clear the aperture during boring and slag tap, avoid hindering drilling construction, contaminated environment; Boring is mentioned drilling rod after reaching predetermined drilling depth, with measuring hole depth and loosened soil thickness (loosened soil thickness equals to bore the difference of dark and hole depth).Hole depth aperture acceptance checking technology is after pore-forming reaches design elevation, and hole depth, aperture, hole wall, verticality etc. are checked, takes measures when defective to handle.It is fixed that the pore-forming inspection method is come according to the situation in aperture, when boring is dry hole, available weight is tamped the loosened soil in the hole, adopt directly and survey with lining rope and gaging hole device, if have underground water in the hole, can adopt pump to inhale the clear hole of method that slurry is taken out in anti-circulation, the gaging hole work of then adopting the method for underwater concreting construction to hole, the rationally viscosity and the sand factor of control mud during clear hole; Through the qualified stake hole of quality examination, in time concrete perfusion.When scarfing cinder technology is the hole pile driving construction, guarantee an important ring of pile quality, guarantee that by clear hole containing boring mud amount and hole wall dirt etc. in sediment thickness at the bottom of the quality index, hole in a hole, the circulation fluid meets a hole quality requirement, adopt the clear hole method of direct circulation rotary drilling technology to be: behind the whole hole, stake hole, drilling tool is improved 20～50cm, adopt big pump amount to pump into the satisfactory new mud of performance indications, and keep more than the direct circulation 30min, up to sediment at the bottom of the cleaning hole and till making hole wall shale, mud sand content less than 4%.The engineering piles hole is because of there being the thicker loose soil layer that easily collapses, can not whole immediately hole behind the clear hole, and in the hole, be lowered to reinforcing cage, implement secondary clear hole operation after installing the grouting conduit, and so that sediment thickness meets the requirements at the bottom of the preceding hole of concrete pouring, guarantee that concrete becomes the post quality.Paying technology is to after each hole acceptance(check), pays and checks and accepts.
Advantage of the present invention is standard rotary digging drilling machine is in the rock-soil layer construction technology good to caking property, particularly the loose caving ground of rotary digging drilling machine, the occasion of the pore-forming job engineering on underground water distribution stratum, the unsettled stratum of hole wall is arranged, replaced traditional artificial experience construction method.Need mud off in pore forming process, because the technology of this construction technology is reasonable, so simplified traditional construction technology of rotary digging drilling machine greatly, the engineering operation cost greatly reduces.
Be described further below in conjunction with drawings and Examples.
Description of drawings
Fig. 1 is one embodiment of the present of invention process structure figure.
Among the figure: 1. place arrangement technology; 2. stake position setting-out technology; 3. road surface and obstruction cut technology; 4. dig casing technology; 5. inserting tube technology; 6. the technology in place of holing; 7. bury casing technology 8. underground and review stake position technology; 9. the mud mixing parametric is measured technology; 10. boring mud is cleared technology; The dark technology 11. rig is holed; 12. hole depth aperture acceptance checking technology; 13. payment technology
Concrete process implementing mode
When constructing, the static mud protecting wall drilling and forming hole method construction technology of rotary digging drilling machine at first carries out place arrangement technology (1), after finishing, place arrangement technology (1) carries out stake position setting-out technology (2), stake position laggard walking along the street face of setting-out technology (2) and obstruction cut technology (3), road surface and obstruction cut and dig casing technology (4) after technology (3) finishes, dig and carry out inserting tube technology (5) after casing technology (4) finishes, the technology in place of holing after inserting tube technology (5) finishes (6), after finishing, the technology in place of holing (6) buries casing technology (7) underground, bury underground and review stake position technology (8) after casing technology (7) finishes, review and carry out mud mixing parametric mensuration technology (9) after stake position technology (8) finishes, carry out boring mud after mud mixing parametric mensuration technology (9) finishes and clear technology (10), boring mud is cleared and is carried out the rig dark technology (11) of holing after technology (10) finishes, rig is holed and is carried out hole depth aperture acceptance checking technology (12) after dark technology (11) finishes, and pays technology (13) after hole depth aperture acceptance checking technology (12) finishes.
Claims (2)
1. rotary digging drilling machine static mud protecting wall drilling and forming hole method construction technology, by the place arrangement technology, stake position setting-out technology, road surface and obstruction cut technology, dig casing technology, inserting tube technology, the technology in place of holing, bury casing technology underground, review stake position technology, the mud mixing parametric is measured technology, boring mud is cleared technology, the rig dark technology of holing, hole depth aperture acceptance checking technology, payment technology is formed, at first carry out the place arrangement technology when it is characterized in that constructing, carry out stake position setting-out technology after finishing, finish laggard walking along the street face and obstruction cuts technology, dig casing technology after finishing, carry out inserting tube technology after finishing, the technology in place of holing after finishing, bury casing technology after finishing underground, review stake position technology after finishing, carry out the mud mixing parametric after finishing and measure technology, carry out boring mud after finishing and clear technology, carry out the rig dark technology of holing after finishing, carry out hole depth aperture acceptance checking technology after finishing, pay technology after finishing.
2. rotary digging drilling machine static mud protecting wall drilling and forming hole method construction technology according to claim 1 is characterized in that the mud of the preparation in the mud mixing parametric mensuration technology should satisfy the requirement of following table
Engineering mud property index sees Table
Item Project Performance indications The method of inspection
1 Proportion Cohesive soil 1.05 Mud weight indicator
Sand 1.1
Cobble 1.15
2 Viscosity Cohesive soil 15～16s 50000/70000 funnel method
Sand 16～18s
Cobble 18～25s
3 Sand factor ＜4％-6％
4 Colloidity ＞95％ The measuring cup method
5 Fluid loss ＜30mL/30min The fluid loss instrument
6 Mudcake thickness 1～3mm/30min The fluid loss instrument
7 Gel strength 1min20～30mg/cm2 10min50～100mg/cm2 The gel strength meter
8 Stability ＜.03g/cm2
9 PH value 8～9 The PH test paper
Water: swell soil: alkali, CMC Cohesive soil 100∶6∶3∶0.8
Sand 100∶10∶1.8∶0.8
Cobble 100∶15∶1.8∶0.8
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200510065435 CN1844589A (en) | 2005-04-08 | 2005-04-08 | Static mud protecting wall type drilling and boring process employing rotary drilling rig |
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|---|---|---|---|
| CN 200510065435 CN1844589A (en) | 2005-04-08 | 2005-04-08 | Static mud protecting wall type drilling and boring process employing rotary drilling rig |
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| CN1844589A true CN1844589A (en) | 2006-10-11 |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425160A (en) * | 2011-08-31 | 2012-04-25 | 中国建筑第二工程局有限公司 | Construction engineering pile method combining rotary drilling rig with manual bottom expanding |
| CN102605772A (en) * | 2012-04-05 | 2012-07-25 | 深圳市金泰建设工程有限公司 | Construction method for revolving digging cast-in-place pile |
| CN103061331A (en) * | 2013-01-18 | 2013-04-24 | 郭磊 | Process for dynamically controlling slurry |
| CN103850248A (en) * | 2012-12-07 | 2014-06-11 | 中建四局第五建筑工程有限公司 | Construction process and device of end-bearing pile hole |
| CN103967000A (en) * | 2013-01-25 | 2014-08-06 | 深圳市勘察测绘院有限公司 | Rotary excavating pile construction method in combined construction |
| CN105239564A (en) * | 2015-10-28 | 2016-01-13 | 上海十三冶建设有限公司 | Construction method of cast-in-place pile with combination of full-sleeve and mud protecting wall |
| CN105735251A (en) * | 2016-01-26 | 2016-07-06 | 赵立财 | Bridge pile foundation rotary excavating drilling rig cutting type whole guard barrel follow-up pile forming construction method and system |
| CN106168024A (en) * | 2015-05-19 | 2016-11-30 | 五冶集团上海有限公司 | A drilling construction method is dug in special formation rotation |
| CN111705575A (en) * | 2020-05-15 | 2020-09-25 | 龙德建设有限公司 | Pile plate type soilless roadbed and highway construction process |
| CN112832675A (en) * | 2021-01-08 | 2021-05-25 | 南方科技大学台州研究院 | Method for drilling small-aperture underground water monitoring well in gravel layer |
-
2005
- 2005-04-08 CN CN 200510065435 patent/CN1844589A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425160A (en) * | 2011-08-31 | 2012-04-25 | 中国建筑第二工程局有限公司 | Construction engineering pile method combining rotary drilling rig with manual bottom expanding |
| CN102605772A (en) * | 2012-04-05 | 2012-07-25 | 深圳市金泰建设工程有限公司 | Construction method for revolving digging cast-in-place pile |
| CN103850248A (en) * | 2012-12-07 | 2014-06-11 | 中建四局第五建筑工程有限公司 | Construction process and device of end-bearing pile hole |
| CN103061331A (en) * | 2013-01-18 | 2013-04-24 | 郭磊 | Process for dynamically controlling slurry |
| CN103967000A (en) * | 2013-01-25 | 2014-08-06 | 深圳市勘察测绘院有限公司 | Rotary excavating pile construction method in combined construction |
| CN106168024A (en) * | 2015-05-19 | 2016-11-30 | 五冶集团上海有限公司 | A drilling construction method is dug in special formation rotation |
| CN105239564A (en) * | 2015-10-28 | 2016-01-13 | 上海十三冶建设有限公司 | Construction method of cast-in-place pile with combination of full-sleeve and mud protecting wall |
| CN105735251A (en) * | 2016-01-26 | 2016-07-06 | 赵立财 | Bridge pile foundation rotary excavating drilling rig cutting type whole guard barrel follow-up pile forming construction method and system |
| CN111705575A (en) * | 2020-05-15 | 2020-09-25 | 龙德建设有限公司 | Pile plate type soilless roadbed and highway construction process |
| CN112832675A (en) * | 2021-01-08 | 2021-05-25 | 南方科技大学台州研究院 | Method for drilling small-aperture underground water monitoring well in gravel layer |
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