CN1443903A - Reducing stirring pile pile-forming process - Google Patents
Reducing stirring pile pile-forming process Download PDFInfo
- Publication number
- CN1443903A CN1443903A CN 03116538 CN03116538A CN1443903A CN 1443903 A CN1443903 A CN 1443903A CN 03116538 CN03116538 CN 03116538 CN 03116538 A CN03116538 A CN 03116538A CN 1443903 A CN1443903 A CN 1443903A
- Authority
- CN
- China
- Prior art keywords
- pile
- movable part
- drill
- reducing
- drill bit
- 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.)
- Withdrawn
Links
Images
Abstract
The present invention relates to a reducing stirred pile pile-forming process, belonging to a soft soil ground treatment technique. Its construction process is characterized by using reducing stirred pile drilling bit, the upper portion of said drilling bit is connected with small-pore drilling rod, said drilling rod can be divided into several sections which are connected one-by-noe, and its length is controlled and designed into length of pile, the lower portion of the drilling bit is a movable component, and when it is controlled by means of a certain rotating speed, said movable component is inclined from perpendicular direction, and formed into a correspondent angle so as to obtain some correspondent horizontal direction diameter, and when it is drilled into deep place of stratum, the soft soil can be loosed.
Description
Technical field
The present invention relates to project site Soft Ground mid-deep strata mixing pile construction technology.
Background technology
Because the intensity of weak soil is low, can not bear than heavy load.Weak soil compressibilty height easily cause the building foundation to produce big sedimentation, so weak soil is very unfavorable as structure foundation simultaneously, and processing needs reinforcement.Deep mixing method is a kind of widely used reinforcing and processing method.Its cardinal principle is by special deep mixer tool, on the spot soil and curing compound (materials such as cement, lime) is forced to stir in the soft soil layer depths, weak soil is hardened become to have globality, the induration of water stability and sufficient intensity.
Existing cement soil deep mixing pile construction technological process (see figure 1): wherein A frame (height is greater than 18 meters) is located on the spot; The B stirring-head creeps into and sinks down into design elevation, and the undisturbed soil structure is beaten pine; Shadoof limit, C limit spraying cement slurries rise, and weak soil and cement grout are forced to mix and stir; D repeats to stir and creeps into sinking, and it is more even that cement and soil are mixed and stirred; E repeats to stir and rises, and also can whitewash again.Existing construction machinery and pile-formation process have limitation:
1. frame is tall and big, and height is greater than 18 meters, and tens of square metres of floor spaces must leave that 3 meters distances of building are above could construct, and 3 meters just can't be used with interior.
2. must destroy the existing face of land before the construction, the excavation construction groove influences traffic.
3. excavating earth surface will produce vibration and noise, mud overflow simultaneously, contaminated environment.
4. formed agitation pile fixed diameter can not change flexibly, causes the waste of material and duration sometimes, increases investment.
Summary of the invention
The objective of the invention is to be equipped with reducing agitation pile drill bit, changed a whole set of deep mixer tool, formed a kind of new reducing agitation pile pile-formation process.
Reducing agitation pile pile-formation process of the present invention is (seeing shown in Figure 2):
1. reducing mixing pile construction drill bit top connects and is connected the location with designing pile length equal length drilling rod (the I to 5 of bore centimeter) and with borer drill rod;
2. under borer drill rod rotated, the movable part of drill bit and vertical direction tilted at an angle, and the undisturbed soil in the variable design stake position scope in pine stake footpath is beaten on sinking limit, limit;
3. shadoof rising edge in limit sprays the consolidating agent slurries;
4. at the bottom of advancing to sink down into from established agitation pile stake crown drill again;
5. repeat shadoof rising edge spray consolidating agent slurries, or do not spray the consolidating agent slurries;
6. rise to the stake top, pile finishes.
A kind of reducing agitation pile drill bit is connected to form with bearing pin by connecting axle and movable part, it is characterized in that: connecting axle, form by screw rod and cylinder, there is a grout hole at the screw rod center, and cylinder has an elongated slot that is connected with movable part, with the elongated slot vertical direction one connecting pin axis hole is arranged;
Movable part, one end end are a circular arc and oval connecting hole is arranged, and the other end is a cross bit, and the middle part is a twist shape spiral drill body.
Superior effect of the present invention is as follows:
1. use conventional small-sized drill (as the SGZ type) highly little (less than 2 meters), floor space little (only 1-2 square metre) is apart from building 0.3 meters distances just can be constructed, so compliance is strong, adopts jointed rod piecemeal on drill bit, and run of steel is (designing pile length) control as required.
2. owing to use reducing agitation pile drill bit,, only need get out only 5 centimeters aperture of diameter minimum on the ground, not influence traffic therefore without the excavation construction groove.
3. excavation construction groove does not destroy the face of land, does not just have vibration, noise and pollution.
4. owing to use jointed rod and reducing mixing pile construction drill bit piecemeal, make the diameter of agitation pile and length all can need control by design, flexible, save engineering quantity, reduce cost.
5. because rotating speed is higher, can repeat to stir, increase the uniformity of agitation pile, time ratio existing equipment institute's time that pile is changed is few.
Description of drawings
Fig. 1 is existing mixing pile construction machinery and technological process
Fig. 2 is mixing pile construction machinery of the present invention and process chart
Fig. 3 is reducing agitation pile drill bit structure figure of the present invention
Label declaration in the accompanying drawing
10-connecting axle 20-movable part
11-connecting rod 21-connecting hole
12-grout hole 22-twist shape spiral drill body
13-elongated slot 23-cross bit
The 14-pin shaft hole
The specific embodiment
Except that aforementioned construction technology of the present invention, wherein the critical component with the borer drill rod fit applications is: reducing agitation pile drill bit (seeing shown in Figure 3), connect to form by connecting axle 10 and movable part 20 usefulness bearing pins, be characterized in: connecting axle 10 is formed by screw rod 11 and cylinder, there is a grout hole 12 at the screw rod center, cylinder has an elongated slot that is connected with movable part 13, with elongated slot 13 vertical direction a connecting pin axis hole 14 is arranged; One end end of movable part 20 is an a circular arc and oval connecting hole 21 is arranged, and the other end is a cross bit 23, and the middle part is a twist shape spiral drill body.In work was implemented, movable part can depart from central vertical linear at an angle (θ), and its maximum angle can reach 90 ° (seeing shown in Figure 3).
Must be pointed out, implementing process of the present invention, its reducing agitation pile drill bit can change different angles of inclination according to designing requirement in force, reaches the needs of different-diameter.
Claims (2)
1. reducing agitation pile pile-formation process is characterized in that:
(1) reducing agitation pile drill bit is connected the location with borer drill rod;
(2) under borer drill rod rotated, the movable part of drill bit and vertical direction tilted at an angle, and the undisturbed soil in the variable design stake position scope in pine stake footpath is beaten on sinking limit, limit;
(3) limit shadoof rising edge spray consolidating agent slurries;
(4) advance to sink down into from established agitation pile stake crown drill again at the bottom of;
(5) repeat shadoof rising edge spray consolidating agent slurries, or do not spray the consolidating agent slurries;
(6) rise to the stake top, pile finishes.
2. a reducing agitation pile drill bit is connected to form with bearing pin by connecting axle and movable part, it is characterized in that:
Connecting axle is formed by screw rod and cylinder, and there is a grout hole at the screw rod center, and cylinder has an elongated slot that is connected with movable part, with the elongated slot vertical direction one connecting pin axis hole is arranged;
Movable part, one end end are a circular arc and oval connecting hole is arranged, and the other end is a cross bit, and the middle part is a twist shape spiral drill body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116538 CN1443903A (en) | 2003-04-22 | 2003-04-22 | Reducing stirring pile pile-forming process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116538 CN1443903A (en) | 2003-04-22 | 2003-04-22 | Reducing stirring pile pile-forming process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1443903A true CN1443903A (en) | 2003-09-24 |
Family
ID=27814895
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03116538 Withdrawn CN1443903A (en) | 2003-04-22 | 2003-04-22 | Reducing stirring pile pile-forming process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1443903A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100336982C (en) * | 2004-12-23 | 2007-09-12 | 东南大学 | Nail type cement soil stirring pile operation method |
| CN101812847A (en) * | 2010-03-17 | 2010-08-25 | 长沙理工大学 | Stepped conical pile foundation suitable for karst area and construction method thereof |
| CN101649612B (en) * | 2008-08-14 | 2011-12-21 | 上海强劲地基工程股份有限公司 | Method for forming variable-diameter cement-soil stirring piles |
| CN102605769A (en) * | 2012-04-11 | 2012-07-25 | 广州机施建设集团有限公司 | Construction method of utilizing short-frame cement stirring pipe to produce cement stirring pile |
| CN103104197A (en) * | 2011-11-10 | 2013-05-15 | 张新强 | Diameter-variable drill bit |
-
2003
- 2003-04-22 CN CN 03116538 patent/CN1443903A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100336982C (en) * | 2004-12-23 | 2007-09-12 | 东南大学 | Nail type cement soil stirring pile operation method |
| CN101649612B (en) * | 2008-08-14 | 2011-12-21 | 上海强劲地基工程股份有限公司 | Method for forming variable-diameter cement-soil stirring piles |
| CN101812847A (en) * | 2010-03-17 | 2010-08-25 | 长沙理工大学 | Stepped conical pile foundation suitable for karst area and construction method thereof |
| CN103104197A (en) * | 2011-11-10 | 2013-05-15 | 张新强 | Diameter-variable drill bit |
| CN102605769A (en) * | 2012-04-11 | 2012-07-25 | 广州机施建设集团有限公司 | Construction method of utilizing short-frame cement stirring pipe to produce cement stirring pile |
| CN102605769B (en) * | 2012-04-11 | 2015-02-04 | 广州机施建设集团有限公司 | Construction method of utilizing short-frame cement stirring pipe to produce cement stirring pile |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1193141C (en) | Combined grouting construction process of reinforcing foundation | |
| CN104988910A (en) | Reducing swing-injected agitating pile | |
| CN1274912C (en) | Pile forming operation method for bi-directional stirring piles | |
| JP4520913B2 (en) | Ground improvement method and existing structure foundation reinforcement method | |
| CN1204713A (en) | Multifunction stirring rotation spray roofbolt rig and construction method | |
| US4958962A (en) | Methods of modifying the structural integrity of subterranean earth situs | |
| CN1718937A (en) | Technology of non soil taking hole guiding prestressed pipe pile or premade square sunk pile | |
| CN105970946A (en) | Basalt fiber reinforced cement soil mixing pile and construction method thereof | |
| CN1443903A (en) | Reducing stirring pile pile-forming process | |
| CN112854239B (en) | Reinforcing construction method for ultra-deep mucky soil layer triaxial mixing pile | |
| KR20140050524A (en) | Ground improved using auger and pile construction methods | |
| CN101649614A (en) | Variable-diameter multi-direction anchor pile | |
| CN1786351A (en) | Non taking soil drawing hole method for construction of sinking pile for prestressed pipe pile or prefabricated square pile | |
| CN100336982C (en) | Nail type cement soil stirring pile operation method | |
| CN101838987A (en) | Operation method of piles with variable cross section for reinforcing shield end soil body | |
| CN1504613A (en) | Forming method for water-proof pile fender and screw drill therefor | |
| CN100374657C (en) | Construction method employing threaded stirring shaft to decrease ambient foundation deformation | |
| CN110318392A (en) | A kind of major diameter cement earth pile method of construction | |
| CN109555127A (en) | A kind of construction for the flush type multimedium built pile that drills | |
| CN1285458A (en) | Underground excavating construction method of underground structure | |
| CN1472397A (en) | Constructing technology for pile core | |
| JP2012197583A (en) | Ground strengthening method and wood pile for strengthening ground | |
| KR101923826B1 (en) | Auger apparatus with rectangular bit structure | |
| CN101050629A (en) | Constructing method for cement, flyash and crushed stone pile | |
| CN1187575A (en) | Large diameter pile slip wall holing technique |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C04 | Withdrawal of patent application after publication (patent law 2001) | ||
| WW01 | Invention patent application withdrawn after publication |