CN104343114A - Cast-in-situ bored pile constructing method for cleaning sediment by gas lift reverse circulation method - Google Patents
Cast-in-situ bored pile constructing method for cleaning sediment by gas lift reverse circulation method Download PDFInfo
- Publication number
- CN104343114A CN104343114A CN201410542786.XA CN201410542786A CN104343114A CN 104343114 A CN104343114 A CN 104343114A CN 201410542786 A CN201410542786 A CN 201410542786A CN 104343114 A CN104343114 A CN 104343114A
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- China
- Prior art keywords
- sediment
- pipe
- scum pipe
- mud
- stake holes
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- 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.)
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/36—Concrete or concrete-like piles cast in position ; Apparatus for making same making without use of mouldpipes or other moulds
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
- E21B21/14—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor using liquids and gases, e.g. foams
Abstract
The invention relates to a cast-in-situ bored pile constructing method for cleaning sediment by a gas lift reverse circulation method. The cast-in-situ bored pile constructing method comprises the following steps: measuring and arranging a pile position, arranging a steel casing at an upper opening of a pile hole, and placing a drilling machine; drilling the pile hole by using the drilling machine, cleaning the pile hole, and installing a reinforcing cage; installing a concrete pipe at the inner lower part of the reinforcing cage; installing a sediment discharging pipe at the top end of the concrete pipe, installing a rubber pipe at a preserved port in the sediment discharging pipe, and enabling the rubber pipe to stretch into the pile hole from the interior of the sediment discharging pipe; connecting the other end of the rubber pipe to an air compressor; connecting the sediment discharging pipe to a slurry purifying device by using a soft pipe; starting up the air compressor, and starting to clean the hole through gas lift reverse circulation; after hole cleaning, pulling the rubber pipe out of the sediment discharging pipe, detaching the sediment discharging pipe, and casting concrete into the pile hole. Before sediment cleaning, construction can be performed only by installing the sediment discharging pipe at the top end and putting down the rubber pipe and by taking out the sediment discharging pipe and the rubber pipe before concrete casting, so that the sediment treatment time is reduced and the sediment treatment effect is very good.
Description
Technical field
The invention belongs to construction technology of cast-in-place bored field, particularly relate to a kind of bored pile construction method utilizing method of air lifting reverse circulation to clear up sediment.
Background technology
In recent years, bored pile was because its easy construction, and the advantage such as with low cost, is widely used in pattern foundation pit supporting structure and pile foundation construction field.Bored pile is in work progress, and for preventing hole wall collapse from generally adopting clay mortar or bentonite slurry to carry out retaining wall, the rubble produced during boring, grit etc. can not completely with outside mud taps, and part can slowly be settled down at the bottom of hole, form sediment.Sediment is the key factor affecting bearing capacity of pile foundation, and cleaning does not reach code requirement, will have a strong impact on bearing capacity of pile foundation.Traditional cleaning sediment method is method of air lifting reverse circulation, and this method utilizes special sediment pipe to coordinate air compressor machine to carry out hole clearly, has following shortcoming: 1, during construction, sediment pipe often will save and be fixed installation, and transfers at the bottom of hole, constructs very loaded down with trivial details and cost of labor is higher.2, sediment treatment effect is general.Need to dismantle section by section after sediment cleaning, in this process, the suspended particulate in some mud slowly can be deposited on and sink to the bottom, and the sediment thickness having met code requirement may be made again defective.3, greatly, contaminated environment, also improves construction cost in addition for mud use and discharge value.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of bored pile construction method utilizing method of air lifting reverse circulation to clear up sediment, adopt gas lift reverse circulation in conjunction with mud purifying device construction method cleaning sediment, improve hole efficiency and clear hole quality clearly, and reduce mud contamination and waste.
The technical solution adopted for the present invention to solve the technical problems is: provide a kind of bored pile construction method utilizing method of air lifting reverse circulation to clear up sediment, step is as follows:
A () measuring stake position also buries steel pile casting underground, driller insertion at stake holes upper end open place;
B () uses rig to start to get out described stake holes, described stake holes completes boring and install reinforcing cage behind clear hole;
C tremie is installed in () bottom in reinforcing cage;
D () installs scum pipe on described tremie top, the reserved opening on described scum pipe installs sebific duct, and described sebific duct stretches into stake holes in scum pipe;
E the other end of sebific duct is connected to air compressor by ();
F scum pipe flexible pipe is connected to mud purifying device by ();
G () opens air compressor, form the mixture of mud, air, sediment in the bottom of conduit;
H the density of () mixture is less than the density of mud, under the effect of deadweight, rise gradually, enter mud conditioning device along conduit and scum pipe.Mud after process is comparatively large due to deadweight, constantly enters stake holes, and then forms closed circuit, constantly carries out the cleaning of sediment;
I () clear hole is extracted sebific duct from scum pipe, and is removed by scum pipe, concreting in stake holes after terminating.
Sebific duct described in step (d) stretches into 1/3 to 2/3 depths of stake holes, seals between described scum pipe and sebific duct.
Described scum pipe is identical with the internal diameter of tremie.
Beneficial effect
The invention has the advantages that, construct simple, quick for installation, only top scum pipe need be installed and transfer sebific duct before cleaning sediment, top scum pipe to be pulled out before concreting and sebific duct is taken away, can construct, greatly reduce sediment process and complete the intermittent time to concreting, sediment effect process is fine.Utilize in addition mud purifying device by carry sediment mud conditioning after, mud can recycle, and reduces mud use amount and discharge value, reduces environment pollution, and saves construction cost.
Accompanying drawing explanation
Fig. 1 is view when opening air compressor machine deslagging after each several part of the present invention is installed.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth the present invention further.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.In addition should be understood that those skilled in the art can make various changes or modifications the present invention, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the present invention's instruction.
As shown in Figure 1, a kind of bored pile construction method utilizing method of air lifting reverse circulation to clear up sediment, step is as follows:
A () measuring stake position also buries steel pile casting 6 underground, driller insertion at stake holes 7 upper end open place;
B () uses rig to start to get out described stake holes 7, described stake holes 7 completes boring and install reinforcing cage 10 behind clear hole;
C tremie 9 is installed in () bottom in reinforcing cage 10;
D () installs scum pipe 3 on described tremie 9 top, the reserved opening on described scum pipe 3 installs sebific duct 4, and described sebific duct 4 stretches into stake holes 7 in scum pipe 3;
E the other end of sebific duct 4 is connected to air compressor 5 by ();
F scum pipe 3 flexible pipe 2 is connected to mud purifying device 1 by ();
G () opens air compressor 5, form the mixture of mud, air, sediment in the bottom of conduit 9;
H the density of () mixture is less than the density of mud, under the effect of deadweight, rise gradually, enter mud conditioning device 1 along conduit 9 and scum pipe 3.Mud after process is comparatively large due to deadweight, constantly enters stake holes 7, and then forms closed circuit, constantly carries out the cleaning of sediment;
I () clear hole is extracted sebific duct 4 from scum pipe 3, and is removed by scum pipe 3, concreting in stake holes after terminating.
Sebific duct 4 described in step (d) stretches into 1/3 to 2/3 depths of stake holes 7, seals between described scum pipe 3 and sebific duct 4.
Described scum pipe 3 is identical with the internal diameter of tremie 9.
In actual use, the present invention needs to use air compressor, sebific duct, scum pipe, mud purifying device.In the pressure-air utilizing air compressor to discharge and hole, mud forms low-density mixture, under Gravitative Loads, the mud that density is larger constantly declines, enter stake holes, the mixture that density is less constantly rises along conduit, and sediment at the bottom of portable hole is along tremie and special scum pipe to surface mud purifier, treated silt is filtered after, return in hole, thus reach the object of cleaning sediment.
Claims (3)
1. utilize method of air lifting reverse circulation to clear up a bored pile construction method for sediment, step is as follows:
A () measuring stake position also buries steel pile casting (6) underground at stake holes (7) upper end open place, driller insertion;
B () uses rig to start to get out described stake holes (7), described stake holes (7) completes boring and behind clear hole, installs reinforcing cage (10);
C tremie (9) is installed in () bottom in reinforcing cage (10);
D () installs scum pipe (3) on described tremie (9) top, reserved opening on described scum pipe (3) installs sebific duct (4), and described sebific duct (4) stretches into stake holes (7) in scum pipe (3);
E the other end of sebific duct (4) is connected to air compressor (5) by ();
F scum pipe (3) flexible pipe (2) is connected to mud purifying device (1) by ();
G () opens air compressor (5), form the mixture of mud, air, sediment in the bottom of conduit (9);
H the density of () mixture is less than the density of mud, under the effect of deadweight, rise gradually along conduit (9) and scum pipe (3), enter mud conditioning device (1), mud after process is larger owing to conducting oneself with dignity, constantly enter stake holes (7), and then form closed circuit, constantly carry out the cleaning of sediment;
I () clear hole is extracted sebific duct (4) from scum pipe (3), and is removed by scum pipe (3), concreting in stake holes after terminating.
2. a kind of bored pile construction method utilizing method of air lifting reverse circulation to clear up sediment according to claim 1, it is characterized in that, sebific duct described in step (d) (4) stretches into 1/3 to 2/3 depths of stake holes (7), seals between described scum pipe (3) and sebific duct (4).
3. a kind of bored pile construction method utilizing method of air lifting reverse circulation to clear up sediment according to claim 1, it is characterized in that, described scum pipe (3) is identical with the internal diameter of tremie (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410542786.XA CN104343114A (en) | 2014-10-15 | 2014-10-15 | Cast-in-situ bored pile constructing method for cleaning sediment by gas lift reverse circulation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410542786.XA CN104343114A (en) | 2014-10-15 | 2014-10-15 | Cast-in-situ bored pile constructing method for cleaning sediment by gas lift reverse circulation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104343114A true CN104343114A (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410542786.XA Pending CN104343114A (en) | 2014-10-15 | 2014-10-15 | Cast-in-situ bored pile constructing method for cleaning sediment by gas lift reverse circulation method |
Country Status (1)
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| CN (1) | CN104343114A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695426A (en) * | 2015-03-29 | 2015-06-10 | 安徽建工集团有限公司 | Gas lift method based secondary hole cleaning construction process for overlength pile foundations |
| CN105937376A (en) * | 2016-06-08 | 2016-09-14 | 深圳市宏业基基础工程有限公司 | Hole clearing system for drilling construction pile |
| CN105937377A (en) * | 2016-06-08 | 2016-09-14 | 深圳市宏业基基础工程有限公司 | Air lift reverse circulation borehole cleaning method |
| CN105952408A (en) * | 2016-06-16 | 2016-09-21 | 中国建筑第六工程局有限公司 | Device for salvaging percussion bit based on pile hole and using method thereof |
| CN108798566A (en) * | 2018-07-10 | 2018-11-13 | 浙江新盛建设集团有限公司 | A kind of cast-in-situ bored pile eject hydraulic pressure slag cleaning device and its construction method |
| CN110424444A (en) * | 2019-08-13 | 2019-11-08 | 中国电建集团山东电力建设有限公司 | Steel pipe pole overhead transmission line foundation pile construction method |
| CN113445946A (en) * | 2021-08-03 | 2021-09-28 | 淮南矿业(集团)有限责任公司 | Large-diameter life-saving hole buried drilling treatment method |
| CN113445917A (en) * | 2021-08-03 | 2021-09-28 | 淮南矿业(集团)有限责任公司 | Implementation method of large-diameter life-saving hole |
| CN113529718A (en) * | 2021-05-18 | 2021-10-22 | 中交一公局集团有限公司 | Hole bottom vacuum cleaning device after pile foundation construction |
| CN113981978A (en) * | 2021-09-22 | 2022-01-28 | 江苏开放大学（江苏城市职业学院） | Method and device for cleaning sediment at bottom of slurry retaining wall cast-in-place pile |
| CN115030675A (en) * | 2022-06-23 | 2022-09-09 | 海通建设集团有限公司 | Gas lift reverse circulation hole cleaning device and hole cleaning method |
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| CN103696417A (en) * | 2013-12-20 | 2014-04-02 | 中国一冶集团有限公司 | Secondary hole cleaning device and method of bottom of cast-in-situ bored pile |
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2014
- 2014-10-15 CN CN201410542786.XA patent/CN104343114A/en active Pending
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| GB2200156A (en) * | 1984-12-06 | 1988-07-27 | Cementation Piling & Found | Fluid ejection apparatus |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104695426A (en) * | 2015-03-29 | 2015-06-10 | 安徽建工集团有限公司 | Gas lift method based secondary hole cleaning construction process for overlength pile foundations |
| CN105937376A (en) * | 2016-06-08 | 2016-09-14 | 深圳市宏业基基础工程有限公司 | Hole clearing system for drilling construction pile |
| CN105937377A (en) * | 2016-06-08 | 2016-09-14 | 深圳市宏业基基础工程有限公司 | Air lift reverse circulation borehole cleaning method |
| CN105952408A (en) * | 2016-06-16 | 2016-09-21 | 中国建筑第六工程局有限公司 | Device for salvaging percussion bit based on pile hole and using method thereof |
| CN108798566A (en) * | 2018-07-10 | 2018-11-13 | 浙江新盛建设集团有限公司 | A kind of cast-in-situ bored pile eject hydraulic pressure slag cleaning device and its construction method |
| CN108798566B (en) * | 2018-07-10 | 2024-03-26 | 浙江新盛建设集团有限公司 | Self-elastic hydraulic slag removing device for bored pile and construction method thereof |
| CN110424444A (en) * | 2019-08-13 | 2019-11-08 | 中国电建集团山东电力建设有限公司 | Steel pipe pole overhead transmission line foundation pile construction method |
| CN113529718A (en) * | 2021-05-18 | 2021-10-22 | 中交一公局集团有限公司 | Hole bottom vacuum cleaning device after pile foundation construction |
| CN113445946A (en) * | 2021-08-03 | 2021-09-28 | 淮南矿业(集团)有限责任公司 | Large-diameter life-saving hole buried drilling treatment method |
| CN113445917A (en) * | 2021-08-03 | 2021-09-28 | 淮南矿业(集团)有限责任公司 | Implementation method of large-diameter life-saving hole |
| CN113981978A (en) * | 2021-09-22 | 2022-01-28 | 江苏开放大学（江苏城市职业学院） | Method and device for cleaning sediment at bottom of slurry retaining wall cast-in-place pile |
| CN115030675A (en) * | 2022-06-23 | 2022-09-09 | 海通建设集团有限公司 | Gas lift reverse circulation hole cleaning device and hole cleaning method |
| CN115030675B (en) * | 2022-06-23 | 2023-10-13 | 海通建设集团有限公司 | Gas lift reverse circulation hole cleaning device and hole cleaning method |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20150211 |