CN105967572A - Manufacturing method of micro-expanding high-strength cemented soil pile - Google Patents
Manufacturing method of micro-expanding high-strength cemented soil pile Download PDFInfo
- Publication number
- CN105967572A CN105967572A CN201610317836.3A CN201610317836A CN105967572A CN 105967572 A CN105967572 A CN 105967572A CN 201610317836 A CN201610317836 A CN 201610317836A CN 105967572 A CN105967572 A CN 105967572A
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- CN
- China
- Prior art keywords
- cement
- soil
- manufacture method
- high strength
- stake
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B28/00—Compositions of mortars, concrete or artificial stone, containing inorganic binders or the reaction product of an inorganic and an organic binder, e.g. polycarboxylate cements
-
- 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
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Structural Engineering (AREA)
- Ceramic Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Curing Cements, Concrete, And Artificial Stone (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a manufacturing method of a micro-expanding high-strength cemented soil pile. The manufacturing method comprises stirring of cemented soil, wherein the mass percent of cement in the cemented soil is about 15 percent to 20 percent; when the cemented soil is stirred, an expanding agent which accounts for 1 percent to 3 percent of the total mass of the cemented soil, a functional additive which accounts for 0 to 3 percent of the total mass of the cemented soil and an alkaline excitant which accounts for 1 percent to 3 percent of the total mass of the cemented soil are added. The manufacturing method is convenient to construct and excellent in working performances.
Description
Technical field
The present invention relates to the manufacture method of a kind of microdilatancy high strength cement soil stake.
Background technology
Existing cement earth pile hydration reaction the most fully causes pile-forming effect bad；In soil cement hardening process, bleeding shrinks, and to be tightly combined degree undesirable with the periphery soil body, affects its service behaviour, needs to be improved further.
Summary of the invention
It is an object of the invention to provide a kind of easy construction, the manufacture method of the microdilatancy high strength cement soil stake that service behaviour is excellent.
The technical solution of the present invention is:
The manufacture method of a kind of microdilatancy high strength cement soil stake, including the stirring of soil cement, is characterized in that: cement mass percent in soil cement is about 15 ~ 20%；During Soil-cement, add and be equivalent to the extender of soil cement gross mass 1-3%, the functional additive of 0 ~ 3%, the alkali-activator of 1-3%.
Described cement grade is not less than 42.5 grades.
Described extender is made up of by the mixing of following mass percent alunite, quick lime, magnesium oxide, kyanite etc.:
Alunite 10 ~ 40%
Quick lime 10 ~ 40%
Magnesium oxide 10 ~ 40%
Kyanite 10 ~ 40%.
Described alkali-activator is the Binder Materials that sodium hydroxide, basic carbonate, alkaline silicate salt component are mixed into.
Described regard soil layer situation add aggregate as soil layer bearing capacity more weak time, add the fine aggregate such as the coarse aggregate such as rubble, cobble and sand.
The stirring of described soil cement is high-pressure rotary-spray stirring, determines to use the stirring of dry stirring, wet method or the stirring of segmentation dry and wet depending on soil moisture in layer.
During the stirring of described high-pressure rotary-spray, stake machine puddler often promotes 15mm spiral one week, and by the back-pressure helical blade of setting on puddler by fuselage weight back-pressure on soil-cement body.
The stirring of described soil cement complete after before soil cement is firmly solidifying, can also be used with Static pressure pile driver or the hammering machinery heart wherein squeeze into prefabricated pile core.
When soil layer bearing capacity is more weak, during Soil-cement, it is additionally added coarse aggregate rubble, cobble and fine aggregate sand.
Easy construction of the present invention, service behaviour is excellent.Be embodied in following four aspect: one, the chemical reaction produced by adding specific extender make soil-cement body hard solidifying time expand, it is to avoid in light water earth hardening process, bleeding shrinks the cracking destruction caused and intensity reduces.Extender stable in properties after soil-cement body is firmly solidifying is no longer reacted, thus accomplishes that expansion period and expansion rate are controlled.Two, playing catalytic action by addition alkali-activator, the hydration reaction making soil-cement body is the most abundant.Three, by adding functional additive, make cement earth pile intensity higher, and can control firmly to coagulate the time, provide condition for squeezing into core stake.Four, high-pressure rotary-spray mix cement the soil body time, fuselage deadweight back-pressure densification soil-cement body；Soil-cement body is squeezed into the compacted soil-cement body of core stake.Above-mentioned measure makes soil cement splitting, penetrates into the periphery soil body, and the integration of stake soil increases collateral resistance.
Below in conjunction with embodiment, the invention will be further described.
Detailed description of the invention
The manufacture method of a kind of microdilatancy high strength cement soil stake, including the stirring of soil cement, cement mass percent in soil cement is about 15 ~ 20%；During Soil-cement, add and be equivalent to the extender of soil cement gross mass 1-3%, the functional additive of 0 ~ 3%, the alkali-activator of 1-3%.
Described cement grade is not less than 42.5 grades.
Described extender is made up of by the mixing of following mass percent alunite, quick lime, magnesium oxide, kyanite etc.:
Alunite 10 ~ 40%(example 10%, 25%, 40%)
Quick lime 10 ~ 40%(example 10%, 25%, 40%)
Magnesium oxide 10 ~ 40%(example 10%, 25%, 40%)
Kyanite 10 ~ 40%(example 10%, 25%, 40%).
Described alkali-activator is prepared from the following ingredients in percentage by the Binder Materials being mixed into:
Sodium hydroxide 10 ~ 60%(example 10%, 35%, 60%), basic carbonate 10-60%(example 10%, 35%, 60%), alkaline silicate 10-60%(example 10%, 35%, 60%).
Described regard soil layer situation add aggregate as soil layer bearing capacity more weak time, add the fine aggregate such as the coarse aggregate such as rubble, cobble and sand.
The stirring of described soil cement is high-pressure rotary-spray stirring, determines to use the stirring of dry stirring, wet method or the stirring of segmentation dry and wet depending on soil moisture in layer.
During the stirring of described high-pressure rotary-spray, stake machine puddler often promotes 15mm spiral one week, and by the back-pressure helical blade of setting on puddler by fuselage weight back-pressure on soil-cement body.
The stirring of described soil cement complete after before soil cement is firmly solidifying, can also be used with Static pressure pile driver or the hammering machinery heart wherein squeeze into prefabricated pile core.
When soil layer bearing capacity is more weak, during Soil-cement, it is additionally added coarse aggregate rubble, cobble and fine aggregate sand.
Claims (6)
1. a manufacture method for microdilatancy high strength cement soil stake, including the stirring of soil cement, is characterized in that: cement mass percent in soil cement is about 15 ~ 20%；During Soil-cement, add and be equivalent to the extender of soil cement gross mass 1-3%, the functional additive of 0 ~ 3%, the alkali-activator of 1-3%.
The manufacture method of microdilatancy high strength cement soil stake the most according to claim 1, is characterized in that: described cement grade is not less than 42.5 grades.
The manufacture method of microdilatancy high strength cement soil stake the most according to claim 1, is characterized in that: described extender is made up of by the mixing of following mass percent alunite, quick lime, magnesium oxide, kyanite:
Alunite
10~40%
Quick lime 10 ~ 40%
Magnesium oxide
10~40%
Kyanite
10~40%。
The manufacture method of microdilatancy high strength cement soil stake the most according to claim 1, is characterized in that: described alkali-activator is the Binder Materials that sodium hydroxide, basic carbonate, alkaline silicate salt component are mixed into.
The manufacture method of microdilatancy high strength cement soil stake the most according to claim 1, is characterized in that: described functional additive is one or more in early strength agent, water reducer, accelerator, retarder.
The manufacture method of microdilatancy high strength cement soil stake the most according to claim 1, is characterized in that: be additionally added coarse aggregate rubble, cobble and fine aggregate sand during Soil-cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610317836.3A CN105967572A (en) | 2016-05-16 | 2016-05-16 | Manufacturing method of micro-expanding high-strength cemented soil pile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610317836.3A CN105967572A (en) | 2016-05-16 | 2016-05-16 | Manufacturing method of micro-expanding high-strength cemented soil pile |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105967572A true CN105967572A (en) | 2016-09-28 |
Family
ID=56992446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610317836.3A Pending CN105967572A (en) | 2016-05-16 | 2016-05-16 | Manufacturing method of micro-expanding high-strength cemented soil pile |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105967572A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153326A (en) * | 2010-12-08 | 2011-08-17 | 武汉高铁桩工科技有限公司 | Curing agent for soft soil and application thereof |
| CN202830916U (en) * | 2012-03-05 | 2013-03-27 | 张继红 | Prefabricated waterproof pile |
| CN103641424A (en) * | 2013-12-03 | 2014-03-19 | 中冶建筑研究总院有限公司 | High-content steel slag grouting material |
-
2016
- 2016-05-16 CN CN201610317836.3A patent/CN105967572A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153326A (en) * | 2010-12-08 | 2011-08-17 | 武汉高铁桩工科技有限公司 | Curing agent for soft soil and application thereof |
| CN202830916U (en) * | 2012-03-05 | 2013-03-27 | 张继红 | Prefabricated waterproof pile |
| CN103641424A (en) * | 2013-12-03 | 2014-03-19 | 中冶建筑研究总院有限公司 | High-content steel slag grouting material |
Non-Patent Citations (1)
| Title |
|---|
| "《土建施工实用手册》" * |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160928 |