CN101560765A - Underground continuous wall construction technique of multi-spindle long spiral drill pipe occluding pile - Google Patents
Underground continuous wall construction technique of multi-spindle long spiral drill pipe occluding pile Download PDFInfo
- Publication number
- CN101560765A CN101560765A CNA2008100362295A CN200810036229A CN101560765A CN 101560765 A CN101560765 A CN 101560765A CN A2008100362295 A CNA2008100362295 A CN A2008100362295A CN 200810036229 A CN200810036229 A CN 200810036229A CN 101560765 A CN101560765 A CN 101560765A
- Authority
- CN
- China
- Prior art keywords
- construction
- long screw
- screw drill
- drill rod
- concrete
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Landscapes
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to an underground continuous wall construction technique of multi-spindle long spiral drill pipe occluding pile, which belongs to deep foundation and underground continuous wall construction technique and is suitable for construction of deep foundation maintenance walls in civil engineering and deep foundation of buildings. In the construction technique, a plurality of long spiral drill pipes (3) are adopted, wherein continuously spiral blades are arranged along the whole length of the outer walls of the drill pipes, and the drill pipe cores are hollow. During work, a drive set (2) drives the long spiral drill pipes (3) to carry out drilling operation simultaneously in such a way that two adjacent drill pipes rotate in opposite directions, so that large-caliber and large-depth construction is realized; and the spiral blades of adjacent long spiral drill pipes rotate in opposite directions so that the spiral blades can occlude each other in the whole length all the time to effectively ensure the constructing quality of the buildings. The invention can reduce the use level of steel products, effectively reduces the cost of the engineering and only discharges dry soil during the construction so as to be beneficial to the spot management of the construction and achieve environmental-friendly construction.
Description
Technical field
Underground continuous wall construction technique of multi-spindle long spiral drill pipe occluding pile relates to deep foundation and underground continuous wall construction technique, is applicable to that the deep foundation ditch of civil works is safeguarded wall, the deep foundation construction of building.
Technical background
When the deep foundation ditch that carries out civil works was safeguarded the deep foundation construction of wall and building, the normal both at home and abroad construction technology that adopts had CFG stake technology, BNT worker's method, SMW worker's method at present.CFG stake technology claims long spiral rear inserting cage bored concrete pile technology again, be to adopt the boring of single shaft long-spiral drilling machine to stake end absolute altitude, by hollow drilling rod pumping concrete perfusion to the stake hole in, drilling rod is upwards carried on pumping of concrete limit, limit, form a concrete stake, in the concrete stake, insert reinforcing cage then, become a reinforced concrete pile, this technology is usually used in the construction of building independence deep foundation, this technology is holed owing to adopting single shaft to be rotated in the soil layer, its huge moment of torsion must bear by pile frame, and pile frame can not be done very greatly, so the aperture of long screw drill rod and hole depth be subjected to the restriction of pile driving frame, and current aperture can only reach 1m, drilling depth 30m, in addition, long-spiral drilling machine once only can become a stake hole, and efficiency of construction is low, and long-spiral drilling machine is difficult to guarantee the verticality in a hole when doing the campshed construction, and stake can not be bited into campshed fully with stake.BNT worker's method claims all casing drill (mill stake machine) interlock stake technology again, boring interlock stake technology is to adopt rig to bore two stake at regular intervals holes by designing requirement, in the stake hole, pour into super slow concrete and become two plain concrete stakes, before stake hole inner concrete solidifies fully, a complete set of pipe cutting downwards between two with mill stake rig, grab awl and grab out soil in the sleeve pipe with dashing, behind the pore-forming in the hole descending reinforcing cage and concrete perfusion, form the campshed that is interlocked.Though BNT worker's method can be carried out the interlock pile driving construction, operating efficiency is low, especially need rely on super retarded concrete, but super retarded concrete costs an arm and a leg, and causes the construction cost of this technology high, is difficult to apply.SMW worker's method claims cement-soil to stir the slotting shaped steel technology of wall again, by adopting multiple-drill press (rig that has 3,4,5 commonly used at present), in soil layer, be rotated down stirring, simultaneously by drilling rod pump cement slurries in soil, cement grout and soil are stirred in together uniformly, form cement-soil and stir wall, in cement soil wall, insert H shaped steel then, be mainly used in pattern foundation pit supporting structure and sealing.Though this worker's method has the expensive cheap advantage of efficiency of construction, it has three defectives: one, and it is very low that formed cement-soil stirs wall intensity, can not use as the permanent structure body; Its two, the complex that stirs wall and shaped steel is a non-rigid structure, during as pattern foundation pit supporting structure, in the process of excavation of foundation pit distortion bigger, when being close to important building and underground utilities, generally be difficult to satisfy the requirement of Deformation control; They are three years old, the drilling rod that SMW worker's method is adopted, stirring vane on its bar is discontinuous, not the total length interlock promptly, so in boring procedure, the soil in the tap fully, and can only soil and cement paste be stirred in together, therefore, this worker's method can not be carried out deep foundation ditch and safeguarded two walls unifications, the deep foundation of building and construction of continuous concrete wall.
Summary of the invention
Deficiency at above-mentioned construction technology, the inventor is through long term studies and practice, the long spiral major diameter of a kind of employing multiaxis (root) drilling rod has been proposed, carry out large aperture, big degree of depth construction, the underground continuous wall construction technique of multi-spindle long spiral drill pipe occluding pile that construction quality is good, efficient is high, cost is low.
The technology of the present invention is achieved in that the multiaxis long-spiral drilling machine that employing is made up of drive unit and long screw drill rod, wherein, long screw drill rod is a hollow stem, hollow parts is as the passage of pumping of concrete, total length is provided with endless spiral on drilling-rod external wall, the endless spiral rotation direction that is provided with on two adjacent long screw drill rods is opposite, the drilling rod front end is provided with the shutter-type one way valve, when boring, closed check valve, prevent that earth from stopping up drilling rod, when on when carrying the drilling rod pumping of concrete one way valve under outside thrust, open automatically.When drive unit driving multi-spindle long spiral drill pipe is holed in foundation soil, drive unit drives adjacent drilling rod in reverse rotation mode each other and rotates, drilling rod produces direction when boring opposite, equal-sized moment of torsion, the positive reaction torque that drive unit is born is a balance, effectively reduced rig for balance restriction and influence to bore diameter and drilling depth by the moment of torsion of drilling rod rotation generation, realized that once can be drilled to a plurality of apertures reaches 0.3m～2.0m, the width that hole depth reaches 10m～50m is big, the degree of depth is dark, the big hole of length and and then build up deep foundation and safeguard wall or diaphragm wall, and owing to total length on adjacent two long screw drill rods is provided with the opposite endless spiral of rotation direction, make all adjacent long screw drill rods can full-time total length interlock, interlock amplitude 100mm≤d≤800mm, the hole of boring has good perforation degree, make also have good interlock degree between the stake of pouring into, thereby can effectively guarantee the quality of interlock stake or diaphragm wall.
When the technology of the present invention is carried out interlock stake or construction of diaphragm wall,, determine the width of a width of cloth interlock stake or diaphragm wall at first according to design and construction requirement, and the long screw drill rod and the radical that adopt required diameter.In drilling process, many long screw drill rods are under the driving of drive unit, adjacent long screw drill rod rotates in the opposite direction, the hand of spiral of the helical blade on the drilling rod equally also is opposite, promptly the helical blade rotation direction of a drilling rod is clockwise, the rotation direction of the helical blade of a then adjacent drilling rod is counterclockwise, and makes all adjacent long screw drill rods reach full-time total length interlock by designing requirement.Progressively in projected depth drilling and forming hole process, drilling rod is unearthed while boring in foundation soil, and the one way valve that is arranged on the drilling rod front end is closed all the time because of pressurized.After drilling rod reaches the boring projected depth, rig is upwards carried drilling rod gradually, the hollow passageway pumping of concrete of drilling rod limit by each drilling rod upwards carried on the limit, at this moment, the one way valve of rod end is opened because of being subjected to outside thrust, concrete perfusion becomes concrete pile and is interlocked in the hole, forms concrete interlock stake.As design reinforcing bar is arranged, when extracting drilling rod, at once the circle that will make in advance forms steel concrete interlock stake or diaphragm wall or/and huge reinforcing cage inserts with vibrator in the concrete pile, finish the construction of a width of cloth concrete interlock stake or diaphragm wall, repeat said process until the construction of finishing whole interlock stake or diaphragm wall or deep foundation.
The invention has the advantages that:
1. adopt the rotary drilling of many long screw drill rod reverse sync, can be with positive reaction torque autobalance, pile frame does not bear moment of torsion, only bear uplift resistance, thereby improved the boring ability, once can bore a plurality of apertures and reach 0.4m～2.0m, reach the stake hole of 10m～50m deeply, realized heavy caliber, big degree of depth construction.
2. utilize the multi-spindle long spiral drill pipe pore-forming, carry pump-injecting concrete when boring, become concrete stake after vibration to insert reinforcing cage.But once Cheng Duogen (more than two) concrete stake, speed is fast, and the concrete compactness of stake is good, can effectively ensure the quality of products, and adds water-stop curtain than traditional diaphragm wall and campshed when being used for deep foundation pit support and compares, and its cost is low, has reduced construction costs.
3. can insert at interval or intersect when inserting reinforcing cage and insert rectangle and circular cross-section reinforcing cage,, reduce the steel use amount, save construction costs to improve steel utilization ratio.
4. owing to adopt the many long twist bit bars of interlock amplitude 100mm≤d≤800mm to hole simultaneously, make behind the pile stake with between have good interlock degree, thereby can guarantee effectively that interlock stake or diaphragm wall or deep foundation ditch safeguard the quality of wall.
5. because the drilling rod that adopts many major diameters and have a good interlock degree is constructed simultaneously, diaphragm wall that is built up or deep foundation ditch safeguard that wall can realize keeping off the two-in-one of soil and water-stop curtain, have saved construction costs.
6. the technology of the present invention is only discharged dry ground when construction, does not produce refuse, waste gas, helps the management and the environmental protection of construction plant, can accomplish green construction.
Description of drawings
Accompanying drawing is that the technology of the present invention adopts two, four axial length auger stems construction embodiment schematic diagram, does not adopt multiaxis to limit to the present invention.
Fig. 1. two axial length auger stems construction embodiment schematic diagram, wherein:
Fig. 1-1 rig schematic diagram in place;
Fig. 1-2 holes to the projected depth schematic diagram;
Fig. 1-3 carries and bores pumping, concrete perfusion schematic diagram;
Fig. 1-4 inserts the reinforcing cage schematic diagram.
Fig. 2. four axial length auger stems construction embodiment schematic diagram, wherein:
Fig. 2-1 rig schematic diagram in place;
Fig. 2-2 holes to the projected depth schematic diagram;
Fig. 2-3 carries and bores pumping, concrete perfusion schematic diagram;
Fig. 2-4 inserts the reinforcing cage schematic diagram;
Among the figure, elephant trunk 1, drive unit 2, long screw drill rod 3, elongated helical blade 4, one way valve 5, concrete 6, vibrator 7, reinforcing cage 8.
The specific embodiment
According to above-mentioned accompanying drawing construction technology of the present invention is further described.
Embodiment one. (Fig. 1)
According to diaphragm wall design and construction requirement, adopt the long screw drill rod of 2 diameter 2m to carry out the construction in the dark stake of 50m hole, the blade interlock degree between 2 long screw drill rods is 800mm.2 long screw drill rods are under the driving of drive unit, adjacent long screw drill rod rotates in the opposite direction, and the hand of spiral of the helical blade on the drilling rod is opposite equally, and drilling rod is unearthed while creeping into, in drilling process, the one way valve that is arranged on the drilling rod front end is closed all the time because of pressurized.After drilling rod reaches the boring 50m degree of depth, rig is upwards carried drilling rod gradually, the drilling rod limit is upwards carried by 2 elephant trunks pumping of concrete in the hole in the limit, carry out concrete spouting, at this moment, the one way valve of rod end is opened because of being subjected to outside thrust, concrete perfusion becomes concrete pile and is interlocked in the hole, form concrete underground continuous wall, when extracting drilling rod, at once the circle that will make in advance or square type reinforcing cage insert and form a width of cloth steel concrete diaphragm wall in the concrete, repeat said process until finishing whole construction of continuous concrete wall.
Embodiment two. (Fig. 2)
Safeguard wall design and construction requirement according to deep foundation, adopt the long screw drill rod 3 of 4 diameter 0.3m to carry out the construction in the dark stake of 10m hole, 3 blade interlocks of 4 long screw drill rods degree is 100mm.4 long screw drill rods 3 are under the driving of drive unit 2,4 long screw drill rods 3 rotate in the opposite direction, and the hand of spiral of the helical blade 4 on the drilling rod is opposite equally, and drilling rod is unearthed while creeping into, in drilling process, the one way valve that is arranged on the drilling rod front end is closed all the time because of pressurized.After drilling rod reaches the boring 10m degree of depth, rig is upwards carried drilling rod gradually, elephant trunk to hole in the pumping of concrete of drilling rod limit by 4 drilling rods upwards carried on the limit, carry out concrete spouting, at this moment, the one way valve of rod end is opened because of being subjected to outside thrust, concrete perfusion becomes concrete pile and is interlocked in the hole, when extracting drilling rod, at once the circle that will make in advance or rectangle reinforcing cage insert and form steel concrete interlock stake in the concrete pile, after finishing a width of cloth concrete interlock stake, repeat said process and safeguard the construction of wall until finishing whole deep foundation ditch.
Claims (4)
1. underground continuous wall construction technique of multi-spindle long spiral drill pipe occluding pile, it is characterized in that: form the multiaxis long-spiral drilling machine by drive unit (2) and long screw drill rod (3), drive unit (2) rotates with the adjacent long screw drill rod (3) of phase inversion system driving each other simultaneously and carries out bore operation, after long screw drill rod (3) reaches the boring projected depth, rig is upwards carried long screw drill rod (3) gradually, the drilling rod limit is upwards carried by the bar heart pumping of concrete of elephant trunk (1) through each long screw drill rod (3) in the limit, and in the hole concrete perfusion (6), when long screw drill rod (3) when extracting fully, the circle that to make in advance or the reinforcing cage (8) of square type insert the construction of finishing a width of cloth steel concrete interlock stake or diaphragm wall in the concrete with vibrator (7), repeat said process until the construction of finishing whole interlock stake or diaphragm wall or deep foundation at once.
2. construction technology according to claim 1, it is characterized in that: long screw drill rod (3) is a hollow stem, total length is provided with endless spiral (4) on drilling-rod external wall, and the endless spiral rotation direction that adjacent long screw drill rod (3) is provided with is opposite, and the drilling rod front end is provided with shutter-type one way valve (5).
3. construction technology according to claim 1 is characterized in that: long screw drill rod (3) diameter reaches 0.3m～2.0m, and drilling depth reaches 10m～50m.
4. construction technology according to claim 1 is characterized in that: the interlock amplitude 100mm≤d≤800mm of adjacent long screw drill rod (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100362295A CN101560765A (en) | 2008-04-18 | 2008-04-18 | Underground continuous wall construction technique of multi-spindle long spiral drill pipe occluding pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100362295A CN101560765A (en) | 2008-04-18 | 2008-04-18 | Underground continuous wall construction technique of multi-spindle long spiral drill pipe occluding pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101560765A true CN101560765A (en) | 2009-10-21 |
Family
ID=41219723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100362295A Pending CN101560765A (en) | 2008-04-18 | 2008-04-18 | Underground continuous wall construction technique of multi-spindle long spiral drill pipe occluding pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101560765A (en) |
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858078A (en) * | 2010-06-21 | 2010-10-13 | 北京市三一重机有限公司 | Continuous wall multi-axis drilling machine and grouting joint device thereof |
| CN102296630A (en) * | 2011-06-17 | 2011-12-28 | 北京中岩大地工程技术有限公司 | Construction method of long-screw high-pressure mix jetting cement diaphragm wall |
| CN102561944A (en) * | 2011-12-29 | 2012-07-11 | 北京市三一重机有限公司 | Porous occlusive pile drilling machine and construction technology thereof |
| CN102677718A (en) * | 2012-06-01 | 2012-09-19 | 张永忠 | Double-bucket grooving machine |
| CN103074892A (en) * | 2013-01-17 | 2013-05-01 | 上海城地建设股份有限公司 | Two-shaft, four-shaft and six-shaft interchanging type cement and soil stirring pile device and construction method thereof |
| CN103074893A (en) * | 2013-01-25 | 2013-05-01 | 张永忠 | Y-shaped cement-soil pile-forming device |
| CN103243740A (en) * | 2013-05-20 | 2013-08-14 | 马春根 | Construction method of rotary excavating and long spiral combination bored concrete pressure grouting secant pile continuous wall |
| CN103266600A (en) * | 2013-05-17 | 2013-08-28 | 浙江省地质矿产工程公司 | Occlusion pile of full reinforcement pile and construction method thereof |
| CN103866787A (en) * | 2014-02-19 | 2014-06-18 | 中国水利水电第七工程局成都水电建设工程有限公司 | Process for constructing impervious concrete wall by using open excavation and inverted construction method |
| CN103967003A (en) * | 2013-02-06 | 2014-08-06 | 上海城地建设股份有限公司 | Multi-shaft interchanging type cement mixing pile device capable of reducing soil compaction and construction method |
| CN104452742A (en) * | 2014-11-11 | 2015-03-25 | 江苏鼎达建筑新技术有限公司 | Long twist internal hole drilling and pressure pumping combined type reinforced concrete sheet pile |
| CN104863133A (en) * | 2015-06-05 | 2015-08-26 | 张璐 | One-time forming equipment for combined pile |
| CN104863136A (en) * | 2015-06-05 | 2015-08-26 | 宋姝娴 | Method for executing oval pile manufacturing device |
| CN104863145A (en) * | 2015-06-05 | 2015-08-26 | 朱艳菊 | Inserting pile producing device |
| CN104988902A (en) * | 2015-06-30 | 2015-10-21 | 朱艳菊 | Application method of equal-width wall forming device |
| CN105002898A (en) * | 2015-07-15 | 2015-10-28 | 周兆弟 | Drill rod rotation driving mechanism of cement soil mixing pile driver |
| CN105113488A (en) * | 2015-08-12 | 2015-12-02 | 河海大学 | Multi-head minor-diameter long-spiral drilling machine and application thereof in construction of cast-in-situ major-diameter tubular pile |
| CN106968594A (en) * | 2017-03-16 | 2017-07-21 | 中铁建设集团有限公司 | Three axial length twist bits and construction method of interlocking pile |
| CN109306700A (en) * | 2018-11-09 | 2019-02-05 | 上海长凯岩土工程有限公司 | Support water stop integration building enclosure and its construction method |
-
2008
- 2008-04-18 CN CNA2008100362295A patent/CN101560765A/en active Pending
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101858078A (en) * | 2010-06-21 | 2010-10-13 | 北京市三一重机有限公司 | Continuous wall multi-axis drilling machine and grouting joint device thereof |
| CN102296630A (en) * | 2011-06-17 | 2011-12-28 | 北京中岩大地工程技术有限公司 | Construction method of long-screw high-pressure mix jetting cement diaphragm wall |
| CN102561944B (en) * | 2011-12-29 | 2014-12-10 | 北京市三一重机有限公司 | Porous occlusive pile drilling machine and construction technology thereof |
| WO2013097377A1 (en) * | 2011-12-29 | 2013-07-04 | 湖南三一智能控制设备有限公司 | Porous secant pile drilling rig and construction technology thereof |
| CN102561944A (en) * | 2011-12-29 | 2012-07-11 | 北京市三一重机有限公司 | Porous occlusive pile drilling machine and construction technology thereof |
| CN102677718A (en) * | 2012-06-01 | 2012-09-19 | 张永忠 | Double-bucket grooving machine |
| CN103074892A (en) * | 2013-01-17 | 2013-05-01 | 上海城地建设股份有限公司 | Two-shaft, four-shaft and six-shaft interchanging type cement and soil stirring pile device and construction method thereof |
| CN103074892B (en) * | 2013-01-17 | 2016-01-06 | 上海城地建设股份有限公司 | A kind of two, four, six axle interchangeable cement-soil mixing pile device and construction methods thereof |
| CN103074893A (en) * | 2013-01-25 | 2013-05-01 | 张永忠 | Y-shaped cement-soil pile-forming device |
| CN103967003A (en) * | 2013-02-06 | 2014-08-06 | 上海城地建设股份有限公司 | Multi-shaft interchanging type cement mixing pile device capable of reducing soil compaction and construction method |
| CN103266600A (en) * | 2013-05-17 | 2013-08-28 | 浙江省地质矿产工程公司 | Occlusion pile of full reinforcement pile and construction method thereof |
| CN103266600B (en) * | 2013-05-17 | 2014-03-12 | 浙江省地质矿产工程公司 | Construction method of occlusion pile of full reinforcement pile |
| CN103243740A (en) * | 2013-05-20 | 2013-08-14 | 马春根 | Construction method of rotary excavating and long spiral combination bored concrete pressure grouting secant pile continuous wall |
| CN103866787A (en) * | 2014-02-19 | 2014-06-18 | 中国水利水电第七工程局成都水电建设工程有限公司 | Process for constructing impervious concrete wall by using open excavation and inverted construction method |
| CN103866787B (en) * | 2014-02-19 | 2016-02-03 | 中国水利水电第七工程局成都水电建设工程有限公司 | A kind of spacious reverse masonry method concrete cut that digs builds construction technology |
| CN104452742A (en) * | 2014-11-11 | 2015-03-25 | 江苏鼎达建筑新技术有限公司 | Long twist internal hole drilling and pressure pumping combined type reinforced concrete sheet pile |
| CN104863133A (en) * | 2015-06-05 | 2015-08-26 | 张璐 | One-time forming equipment for combined pile |
| CN104863145A (en) * | 2015-06-05 | 2015-08-26 | 朱艳菊 | Inserting pile producing device |
| CN104863136A (en) * | 2015-06-05 | 2015-08-26 | 宋姝娴 | Method for executing oval pile manufacturing device |
| CN104988902A (en) * | 2015-06-30 | 2015-10-21 | 朱艳菊 | Application method of equal-width wall forming device |
| CN105002898A (en) * | 2015-07-15 | 2015-10-28 | 周兆弟 | Drill rod rotation driving mechanism of cement soil mixing pile driver |
| CN105113488A (en) * | 2015-08-12 | 2015-12-02 | 河海大学 | Multi-head minor-diameter long-spiral drilling machine and application thereof in construction of cast-in-situ major-diameter tubular pile |
| CN106968594A (en) * | 2017-03-16 | 2017-07-21 | 中铁建设集团有限公司 | Three axial length twist bits and construction method of interlocking pile |
| CN106968594B (en) * | 2017-03-16 | 2021-04-02 | 中铁建设集团有限公司 | Three-axis long spiral drilling machine and secant pile construction method |
| CN109306700A (en) * | 2018-11-09 | 2019-02-05 | 上海长凯岩土工程有限公司 | Support water stop integration building enclosure and its construction method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101560765A (en) | Underground continuous wall construction technique of multi-spindle long spiral drill pipe occluding pile | |
| CN105780763B (en) | Mesoporous vibrates the construction method of casing retaining wall long auger guncreting pile | |
| CN201391223Y (en) | Multi-shaft long screw occlusion drill | |
| CN205840781U (en) | A kind of super three axes agitating pile of pebble layer | |
| CN104563104B (en) | Pile work drilling machine is with coordinated type breast wall apparatus and use its construction method | |
| CN102182180A (en) | Rotary extrusion sleeve anchor rod and construction method thereof | |
| CN205502024U (en) | Arch combination envelope that can partially retrieve | |
| CN201050303Y (en) | Self-dumping cone type spiral anchor drill bit | |
| CN204491591U (en) | A kind of triaxial cement mixing pile pile-forming equipment | |
| CN204608773U (en) | Pile work drilling machine coordinated type breast wall apparatus | |
| CN207260138U (en) | Drill rod of high-pressure jet grouting stirring bearing pile and device with drill rod | |
| CN202688987U (en) | Spiral pile machine | |
| CN112901074A (en) | Rock-socketed drilling pore-forming process of marine large-diameter inclined pile rotary excavator | |
| CN201459708U (en) | Rotatable multi-shaft drill hole irrigation concrete occlusion guard post wall | |
| CN215758989U (en) | Long auger drilling machine and system | |
| CN110344764A (en) | Base expanding and base expanding reperfusion pile mechanical piling device and its pile making method | |
| CN206581314U (en) | Screw head muscle body posttension pile foundation | |
| CN105568968A (en) | Wedge-shaped inserting-buckling T-shaped pile drilling and stirring machine | |
| CN210598826U (en) | Mechanical pile forming device for bottom-expanding cast-in-place foundation pile | |
| CN105239575B (en) | One kind drilling base expanding and base expanding grouting Static Pipe Pile Construction device and construction method | |
| CN210530745U (en) | Combined drilling bottom-expanding pile-planting system | |
| CN109555127A (en) | A kind of construction for the flush type multimedium built pile that drills | |
| CN112796308A (en) | Long spiral drilling machine and cast-in-place pile construction method | |
| JP4645091B2 (en) | Expanded pile and construction method of the expanded pile | |
| CN105586952A (en) | Inserting device of octagonal piles and T-shaped piles |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20091021 |