CN1029526C - Pile-forming method by hole-leading mud-jacking pile-sinking - Google Patents
Pile-forming method by hole-leading mud-jacking pile-sinking Download PDFInfo
- Publication number
- CN1029526C CN1029526C CN 92105033 CN92105033A CN1029526C CN 1029526 C CN1029526 C CN 1029526C CN 92105033 CN92105033 CN 92105033 CN 92105033 A CN92105033 A CN 92105033A CN 1029526 C CN1029526 C CN 1029526C
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- Prior art keywords
- pile
- hole
- grouting
- construction
- draw
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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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000005553 drilling Methods 0.000 claims abstract description 4
- 239000011440 grout Substances 0.000 claims abstract description 3
- 239000002002 slurry Substances 0.000 claims description 10
- 239000004568 cement Substances 0.000 claims description 6
- 229910000278 bentonite Inorganic materials 0.000 claims description 3
- 239000000440 bentonite Substances 0.000 claims description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 3
- 239000003673 groundwater Substances 0.000 claims description 3
- 230000010412 perfusion Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims description 2
- 239000010883 coal ash Substances 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 239000004570 mortar (masonry) Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 19
- 238000003825 pressing Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002787 reinforcement Effects 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 abstract 2
- 238000005056 compaction Methods 0.000 abstract 1
- 239000002689 soil Substances 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 1
- 239000005977 Ethylene Substances 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- PPTYJKAXVCCBDU-UHFFFAOYSA-N Rohypnol Chemical compound N=1CC(=O)N(C)C2=CC=C([N+]([O-])=O)C=C2C=1C1=CC=CC=C1F PPTYJKAXVCCBDU-UHFFFAOYSA-N 0.000 description 1
- 241000231739 Rutilus rutilus Species 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000003889 chemical engineering Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
Images
Landscapes
- Piles And Underground Anchors (AREA)
- Placing Or Removing Of Piles Or Sheet Piles, Or Accessories Thereof (AREA)
Abstract
The invention belongs to the field of civil construction pile foundation construction. The existing pile sinking method is difficult to enter into a hard stratum, and although the spiral drilling and grouting pile forming method can enter into the hard stratum, the manufacturing cost is high. A pile-forming method by drilling and grouting includes such steps as taking out a soil core smaller than pile diameter from foundation difficult to be sunk, pressing in special grout to form protecting wall, and driving pile or vibrating pipe to desired depth. The method has the characteristics of fast hole guiding, stable hole wall, compaction and reinforcement effect on the pile bottom of the side wall, simple and convenient construction, small occupied area for construction, high pile bearing capacity, low manufacturing cost and the like, and can be widely applied to pile foundation construction of various stratums difficult to sink piles.
Description
The invention belongs to the construction of pile foundation in civil building field.
At present, because particularly export-oriented economy develop rapidly of national economy, tall and big heavy dark the increasing of great load building that reach, the control of massif stability of slope, hydraulic engineering, harbour, the development of industry such as road and rail abutment and civil engineering construction, prior art adopts direct pile sinking, the piling method, for the excessive stratum of formation resistance, can't construct, so the employing auger boring method for making pile by grouting into that has recently carries out pile foundation construction to it, this method can make pile foundation enter firm hard formation, but the no sand cement slurry that its mud jacking is to use, invalid cement loss amount is big, and do not have the compacted effect of tamping, so the low construction cost height of pile intensity.
For overcoming the shortcoming of prior art, the invention provides a kind of pile forming method by hole-leading pulp pressing pilesinking (being called for short the HKZ method).
This auger boring method for making pile by grouting into is characterized in that, it is promptly to draw the hole with the core that auger takes out less than the stake hole, be pressed into special slurries retaining wall with slush pump through the augers centre bore simultaneously, mobile rig mast aligns a pipe to draw position, hole vibration sinking tube perfusion pile.
In auger boring method for making pile by grouting into of the present invention, described mud jacking liquid can be that bentonite slurry, clay mortar, cement paste, cement add coal ash pulp and chemical grout, and wherein best is bentonite slurry.
In auger boring method for making pile by grouting into of the present invention, describedly be pressed into special slurries retaining wall from centre bore, its mud jacking apical side height generally is meant the degree of depth in groundwater table or the unlikely hole of collapsing.
In auger boring method for making pile by grouting into of the present invention, the hole facility that draw that described core drilling is used are augers, and preferably long screw auger also can be Churn drill, common abrasion drill, perhaps draws the hole with mode of jet.
The present invention since adopted draw the hole, the pile sinking method of mud jacking retaining wall and vibration sinking tube perfusion pile when drawing the hole, and the three combined, make construction method of the present invention demonstrate unique superiority that its bearing capacity of pile foundation height, cost reduce significantly.
The construction equipment that pile forming method by hole-leading pulp pressing pilesinking of the present invention adopts is the dual-purpose stake of a spiral mud jacking vibration sinking tube machine, sees accompanying drawing 1.When drawing hole mud jacking pile sinking bore forming, it is promptly to draw the hole with the core that long-armed auger (2) at first takes out less than the stake hole, use stock pump (5) mud jacking to be pressed into special slurries retaining wall simultaneously through the augers centre bore, roach and drill bit are proposed, movable mast (1) pours into pile with vibropile pipe (7) along the foramen primum vibration sinking tube.Draw bore open and draw the smaller the betterly deeply, the pressure 200～2000KPa of mud jacking generally determines by the test of local geological conditions.
Realize that best method of the present invention is to do by the operation instruction of accompanying drawing 1.Draw the hole separately as the also available any hole machinery that draws that do not satisfy the requirements, with slurry weight equilibrium method retaining wall, pile sinking gets final product fast.But time-consuming, no crushing.
The hole mud jacking pile sinking bore forming method of drawing of the present invention, in the past few years, through Beijing, many places, ground large-scale petroleum chemical engineering and Other Engineering test piles such as Tianjin, Shandong, Henan, Hebei, Inner Mongol, generally reflection is good, currently gains great popularity more.
For example: the 140000 tons of ethylene projects in Central Plains have adopted pile forming method by hole-leading pulp pressing pilesinking and bored pile method; The 300000 tons of chemical fertilizer engineerings in Central Plains have adopted draws the hole and squeezes into formula preformed pile method; Puyang steam power plant engineering has adopted the auger boring method for making pile by grouting into.
Economic technology contrast about this law and above-mentioned three kinds of prior art "forming columns sees Table four kinds of stake types of 1 Puyang "forming column economic technology comparison sheet:
Four kinds of stake types of Puyang "forming column economic technology comparison sheet table 1
Single pile conversion ten thousand tons of bearing capacities of folk prescription and preformed pile are thrown
The long every linear meter cost construction cost per square meter of stake footpath stake
The required investment money of stake type bearing capacity concrete bearing capacity is compared
(m) (m) (unit/rice) (unit/m
2)
(KN) (KN/m
3) (ten thousand yuan/ten thousand tons) (%)
Drawing the hole squeezes into formula 118.33+20.0(and draws the hole)
0.4×0.4 19 1100 362 864.56 23.88 100
Preformed pile method=138.33
Auger boring
ψ0.4 14 750 426 112.00 891.27 20.92 87.6
Method for making pile by grouting into
Draw hole mud jacking 78.42+20.0(and draw the hole)
ψ0.45 18 1300 454 618.83 13.63 57.1
Pile sinking "forming column=98.42
Draw hole mud jacking 61.96+20.0(and draw the hole)
ψ0.4 18 1100 486 652.22 13.42 56.2
Pile sinking "forming column=81.96
Boring
ψ0.5 18 930 263 113.72 579.17 22.01 92.2
Bored cast-in-situ pile
Annotate: 1. this table cost is according to Henan Province's construction work quota of budgetary estimate in 1989, calculates in conjunction with the concrete condition of Puyang.
2. various stake type "forming columns all are not considered to power factor (PF).
To sum up, compared with prior art, the advantage of pile forming method by hole-leading pulp pressing pilesinking of the present invention is:
This law has the firm hard formation of breaking through difficult construction, not influenced by groundwater table, it is fast to have the hole of drawing, hole wall is stable, oppose side wall has compacted, to the tamping reinforcement effect is arranged at the bottom of the stake, easy construction, the construction occupied ground is little, the bearing capacity of stake is the highest, and cost reduces significantly, can be widely used in various tall and big heavy dark pile engineering and the controls of massif stability of slope that reach the building of great load, hydraulic engineering, harbour, the pile engineering of the abutment of highway and railway and other industry and civilian construction, but adopt this law accelerating construction progress, save construction costs greatly, economic benefit is very considerable, is rated as current ideal pile foundation pile sinking "forming column.
Description of drawings:
The dual-purpose stake of accompanying drawing 1. spiral mud jacking vibration sinking tubes machine
Wherein: 4 machines of 1 mast, 2 long-armed auger 3 vibrating hammers, 5 stock pumps, 6 high-pressure slip-casting pipes, 7 vibropile pipes
Claims (4)
1, a kind of auger boring method for making pile by grouting into is characterized in that, it is promptly to draw the hole with the core that auger takes out less than the stake hole, is pressed into special slurries retaining wall with slush pump through the augers centre bore simultaneously, a pipe is aligned draw position, hole vibration sinking tube perfusion pile.
2,, it is characterized in that described mud jacking liquid can be that bentonite slurry, clay mortar, cement paste, cement add coal ash pulp and chemical grout by the described auger boring method for making pile by grouting into of claim 1.
By claim 1,2 described auger boring method for making pile by grouting into, it is characterized in that 3, describedly be pressed into special slurries retaining wall from centre bore, its mud jacking apical side height generally is meant the degree of depth in groundwater table or the unlikely hole of collapsing.
4, by the described auger boring method for making pile by grouting into of claim 1, it is characterized in that the hole facility that draw that described core drilling is used are augers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92105033 CN1029526C (en) | 1992-06-27 | 1992-06-27 | Pile-forming method by hole-leading mud-jacking pile-sinking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92105033 CN1029526C (en) | 1992-06-27 | 1992-06-27 | Pile-forming method by hole-leading mud-jacking pile-sinking |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1080681A CN1080681A (en) | 1994-01-12 |
| CN1029526C true CN1029526C (en) | 1995-08-16 |
Family
ID=4941150
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92105033 Expired - Fee Related CN1029526C (en) | 1992-06-27 | 1992-06-27 | Pile-forming method by hole-leading mud-jacking pile-sinking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1029526C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330435B (en) * | 2011-07-05 | 2013-09-18 | 东南大学 | Construction method of separation wall for carrying out in situ separation repair on pollution site |
| CN102493452A (en) * | 2011-11-30 | 2012-06-13 | 蔡嘉明 | Grouting pile-grafting construction method and equipment |
| CN108532590A (en) * | 2018-03-02 | 2018-09-14 | 毕建宏 | The construction method and apparatus of caisson |
-
1992
- 1992-06-27 CN CN 92105033 patent/CN1029526C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1080681A (en) | 1994-01-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Liu Xingchen Inventor after: Wang Hongzhu Inventor after: Liang Min Inventor after: Lin Yanzeng Inventor after: Hou Shengming Inventor before: Liu Xingchen Inventor before: Liang Min Inventor before: Lin Yanzeng |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: LIU XINGCHEN; LIANG MIN; LIN YANZENG TO: LIU XINGCHEN; WANG HONGZHU; LIANGMIN; LIN YANZENG; HOU SHENGMING |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |