CN102852132B - The construction treating methods of high frequency static pressure compaction draining slip casting composite foundation - Google Patents
The construction treating methods of high frequency static pressure compaction draining slip casting composite foundation Download PDFInfo
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- CN102852132B CN102852132B CN201110178036.5A CN201110178036A CN102852132B CN 102852132 B CN102852132 B CN 102852132B CN 201110178036 A CN201110178036 A CN 201110178036A CN 102852132 B CN102852132 B CN 102852132B
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Abstract
The invention discloses a kind of construction treating methods of high frequency static pressure compaction draining slip casting composite foundation, it be very original position soft soil is carried out fast, superpressure, compacted compacting, Active Drainage, initiatively slip casting construction technology, the soil body after Combined Treatment has the complex ground treatment layer of the closely knit composite crust of certain thickness; This programme can promote the overall vertical bearing capacity of the composite foundation soil body and water resistant equals sideslip ability, can effectively solve " spongy soil " that cause because outside subsidiary stress is excessive, effective control settlement after construction and the excessive bad phenomenon of relative settlement, effectively avoid large area soft soil to break away the phenomenon of caving in; The repeatedly repeated contamination can saved the combined heap load precompacting earthwork 100%, construction period 50% can be shortened, construction cost more than 50% can be reduced, a large amount of earthwork Mining Transport can be avoided to bring.
Description
Technical field
The present invention relates to a kind of construction treating methods of high frequency static pressure compaction draining slip casting composite foundation, its method is applicable to all kinds of weak soil, backfill, blows the complex ground treatment of silt backfill, can be formed fast and there is shallow closely knit duricrust composite foundation layer in certain thickness soft soil, noise and vibration effect index keep under strict control region construction advantage larger.
Background technology
At present, all kinds of weak soil of known process, in the method for backfill, traditional soft base construction method is on the basis of the band drain squeezed into, carry out vacuum water covering prepressing or combined vacuum and surcharge preloading, vacuum water covering prepressing method because of the effective subsidiary stress provided limited, the Free water in deep soft soil and Bound moisture can not be discharged very well, settlement after construction and relative settlement is excessive exceeds standard, combined vacuum and surcharge preloading, although promote to some extent the bearing capacity of foundation soil of deep soft soil, but cost is high, a large amount of cubic metre of earth and stone heaped loads and unloading need be employed, cause meaningless waste and transport secondary pollution not environmentally, the composite foundation after the process of original position soft soil can not be made to have shallow closely knit duricrust composite foundation layer in the certain thickness original position soil body.
In order to overcome the deficiency that above-mentioned conventional method exists in work progress, reduce construction cost, improve efficiency of construction, secondary conveying is avoided to pollute, accomplish environmental protection, accomplish that settlement after construction and relative settlement really meet design and construction requirement, adapt to the construction demand in different soil and place, just become the technical problem that the art of this patent scheme will solve.
Summary of the invention
For the problems referred to above, the present invention aims to provide a kind of construction treating methods of high frequency static pressure compaction draining slip casting composite foundation.
For realizing this technical purpose: the construction treating methods of high frequency static pressure compaction draining slip casting composite foundation, static pressure compaction draining grouting equipment comprises three parts, Part I is made up of the static pressure fixture association with high-frequency hydraulic static pressure hammer, flange, special fixture chute crossbeam, moving telescopic chuck, Part II is made up of static pressure compaction firming plate and steel pile casting, and Part III is connected transverse tube formed by the high-pressure slip-casting pipe group arranged at the bottom of the drain pipe system that steel pile casting inwall is arranged, firming plate, high-pressure slip-casting; Its construction sequence is as follows:
A, mark off some different pretreatment construction block according to mechanics index of physics in design working drawing and geological mapping report, and bury and put telltale mark well.
B, pretreatment construction block in, first squeezing into band drain to soil layer design elevation place by design working drawing, bassets and is connected to draining on drainage duct in band drain top.
C, increase by one group of light-duty tube well dewatering system of deep layer again and be placed into soil layer design elevation place in pretreatment construction block, reduce the water level under operation side quickly.
D, startup high-frequency hydraulic static pressure hammer
1by flange and special fixture chute crossbeam, the moving telescopic chuck of connection, the quick compacted compacting original position soft soil of exerting pressure that shakes is executed on the top of clamping static pressure compaction firming plate and steel pile casting, start the drain pipe system that steel pile casting inwall is arranged simultaneously and implement Active Drainage, start the high-pressure slip-casting pipe group arranged at the bottom of firming plate subsequently and implement high-pressure slip-casting construction.
After e, above-mentioned operation complete, start high-frequency hydraulic static pressure hammer, by flange and special fixture chute crossbeam, the moving telescopic chuck of connection, static pressure compaction draining grouting equipment of extricating oneself from a predicament and brace oneself up to action at a slow speed is constructed to next process place.
F, on processed good ground to recently backfill, blow become silted up backfill weak soil directly carry out dehydration high frequency roll shake extrude close construction.
Concrete further as this patent, also comprise the vacuum drainage guard system that steel pile casting inwall is arranged, it implements Active Drainage for the original position soft soil in construction.
Concrete further as this patent, also comprise the high-pressure slip-casting pipe group arranged at the bottom of firming plate, it implements high-pressure slip-casting construction for the static pressure compaction soil in construction.
Concrete further as this patent, the soil body after Combined Treatment has the closely knit composite crust layer of certain thickness middle-shallow layer foundation soil.
The comprehensive use of the present invention program, except the soil body after Combined Treatment has the closely knit composite crust layer of certain thickness middle-shallow layer foundation soil, also greatly can improve the physical mechanics of the weak undisturbed soil of middle-shallow layer original position and structural property and resistance to compression, shearing modulus, overall vertical bearing capacity and the water resistant that can improve composite foundation soil equal sideslip ability, the combined heap load precompacting earthwork 100% can be saved, construction period 50% can be shortened, construction cost more than 50% can be reduced, the repeated contamination of a large amount of earthwork Mining Transport can be avoided, this method adapts to different soft layers and complex region field construction.
Accompanying drawing explanation
Fig. 1 is composite technology principle schematic of the present invention.
Fig. 2 is static pressure compaction draining grouting equipment layout schematic diagram of the present invention.
Fig. 3 is that band drain draining of the present invention and light-duty tube well dewatering arrange schematic diagram.
Its description of reference numerals: high-frequency hydraulic static pressure is hammered into shape
1, flange
2, special fixture chute crossbeam
3, moving telescopic chuck
4, static pressure compaction firming plate
5, steel pile casting
6, drain pipe system that steel pile casting inwall is arranged
7, the high-pressure slip-casting pipe group that arranges at the bottom of firming plate
8, high-pressure slip-casting pipe group connect transverse tube
9, by after static pressure compaction draining slip casting composite foundation soil
10, be passed the soil of discharge along steel pile casting inwall
11, original position soft soil
12, the connector that is welded and fixed between firming plate and steel pile casting
13, band drain
14, light-duty pipe well
15.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the technology of the present invention is described in further details:
As accompanying drawing 1,2,3, shown in, the present invention is to provide one and first pass through band drain
14method improves deep soft foundation soil bearing capacity of foundation soil, then by the light-duty pipe well of mid-deep strata
15precipitation method improves middle level soft subgrade soil bearing capacity of foundation soil, after restart high-frequency hydraulic static pressure hammer
1, by the flange connected
2with special fixture chute crossbeam
3, moving telescopic chuck
4, to static pressure compaction firming plate
5and steel pile casting
6top clamping exert pressure, make weak foundation soil
12compacted by fast compacting, the compacted soil of partial compaction to be boosted casting along steel pile casting inwall
11and discharge unnecessary subsidiary stress energy, start the drain pipe system that steel pile casting inwall is arranged simultaneously
7active Drainage, starts the high-pressure slip-casting pipe group arranged at the bottom of firming plate subsequently
8implement mortar depositing construction, the final construction technology forming the closely knit composite crust layer of middle-shallow layer foundation soil.
When constructing, marking off some different pretreatment construction block according to design working drawing and geological mapping report mechanics index of physics, and burying and put telltale mark well; In pretreatment construction block, first squeeze into band drain by design working drawing
14to soil layer design elevation place, band drain
14basset and be connected to draining on drainage duct in top; One group of light-duty pipe well of deep layer is increased again in construction block
15precipitation system is also placed into soil layer design elevation place, reduces the water level under operation side quickly; Start high-frequency hydraulic static pressure hammer
1, by the flange connected
2with special fixture chute crossbeam
3, moving telescopic chuck
4, clamping static pressure compaction firming plate
5and steel pile casting
6top execute that shaking exerts pressure makes original position soft soil
12by quick static pressure compaction compacting, start the drain pipe system that steel pile casting inwall is arranged simultaneously
7implement Active Drainage, start the high-pressure slip-casting pipe group arranged bottom firming plate subsequently
8implement mortar depositing construction.
After above-mentioned operation completes, start high-frequency hydraulic static pressure hammer
1, by the flange connected
2with special fixture chute crossbeam
3, moving telescopic chuck
4, static pressure compaction draining grouting equipment of extricating oneself from a predicament and brace oneself up to action at a slow speed is constructed to next process place.
On processed good ground to recently backfill, blow become silted up backfill weak soil directly carry out dehydration high frequency roll shake extrude close construction.
Static pressure compaction draining grouting equipment in the present embodiment is mainly divided into three part compositions: Part I is for hammer into shape with high-frequency hydraulic static pressure
1, flange
2, special fixture chute crossbeam
3, moving telescopic chuck
4static pressure fixture association composition; Part II is static pressure compaction firming plate
5and steel pile casting
6composition; Part III is the drain pipe system that steel pile casting inwall is arranged
7, the high-pressure slip-casting pipe group that arranges at the bottom of firming plate
8, high-pressure slip-casting pipe connect transverse tube
9composition.
The present invention program has the feature of casting, in position soft soil
12during by quick static pressure compaction compacting, the compacted soil of partial compaction
11along steel pile casting
6inwall is boosted casting, avoids " spongy soil " phenomenon in construction to occur.
In practice of construction, construction method of the present invention specifically adopts following steps:
A kind of construction treating methods of high frequency static pressure compaction draining slip casting composite foundation comprises following construction sequence:
A, mark off some different pretreatment construction block according to mechanics index of physics in design working drawing and geological mapping report, and bury and put telltale mark well.B, pretreatment construction block in, first squeezing into band drain to soil layer design elevation place by design working drawing, bassets and is connected to draining on drainage duct in band drain top.
C, increase by one group of light-duty tube well dewatering system of deep layer again and be placed into soil layer design elevation place in construction block, reduce the water level under operation side quickly.
D, startup high-frequency hydraulic static pressure hammer
1, by the flange connected
2with special fixture chute crossbeam
3, moving telescopic chuck
4, clamping static pressure compaction firming plate
5and steel pile casting
6top execute the quick compacted compacting original position soft soil of exerting pressure that shakes
12, start the drain pipe system that steel pile casting inwall is arranged simultaneously
7implement Active Drainage, start the high-pressure slip-casting pipe group arranged at the bottom of firming plate subsequently
8implement mortar depositing construction.
After e, above-mentioned operation complete, start high-frequency hydraulic static pressure hammer
1, by the flange connected
2with special fixture chute crossbeam
3, moving telescopic chuck
4, static pressure compaction draining grouting equipment of extricating oneself from a predicament and brace oneself up to action at a slow speed is constructed to next process place.
F, on processed good ground to recently backfill, blow become silted up backfill weak soil directly carry out dehydration high frequency roll shake extrude close construction.
Specific implementation method and result
1) draining slip casting Composite foundation construction facture type
A, mark off some different pretreatment construction block according to mechanics index of physics in design working drawing and geological mapping report, and bury and put telltale mark well.
B, pretreatment construction block in, by design working drawing insert band drain
14to soil layer design elevation place, basset and be connected to draining on drainage duct in band drain top.
C, process construction block in increase by one group of light-duty precipitation system of deep layer again
15and be placed into soil layer design elevation place, reduce the water level under operation side quickly.
D, startup high-frequency hydraulic static pressure hammer
1, by the flange connected
2with special fixture chute crossbeam
3, moving telescopic chuck
4, clamping static pressure compaction firming plate
5and steel pile casting
6top execute the quick compacted compacting original position soft soil of exerting pressure that shakes
12, start the drain pipe system that steel pile casting inwall is arranged simultaneously
7to the original position soft soil in construction
12implement Active Drainage.
The high-pressure slip-casting pipe group arranged at the bottom of e, startup firming plate
8to the soft soil after static pressure compaction
10implement mortar depositing construction.
After f, above-mentioned operation complete, start high-frequency hydraulic static pressure hammer
1, by the flange connected
2with special fixture chute crossbeam
3, moving telescopic chuck
4, static pressure compaction draining grouting equipment of extricating oneself from a predicament and brace oneself up to action at a slow speed is constructed to next process place.
G, on processed good ground to recently backfill, blow become silted up backfill weak soil directly carry out dehydration high frequency roll shake extrude close construction.
2) the Composite foundation construction facture type of a slip casting
A, mark off some different pending construction blocks according to mechanics index of physics in design working drawing and geological mapping report, and bury and put telltale mark well.
B, startup mobile unit, open high-frequency hydraulic static pressure hammer
1, by the flange connected
2with special fixture chute crossbeam
3, moving telescopic chuck
4, clamping static pressure compaction firming plate
5and steel pile casting
6the top of equipment executes that shaking exerts pressure makes original position soft soil
12by quick static pressure compaction compacting, the compacted soil of partial compaction
11along steel pile casting
6inwall is boosted casting discharge unnecessary subsidiary stress energy.
The high-pressure slip-casting pipe group arranged bottom c, startup firming plate
8mortar depositing construction is implemented to the soft soil after static pressure compaction.
After d, above-mentioned operation complete, start high-frequency hydraulic static pressure hammer
1, by the flange connected
2with special fixture chute crossbeam
3, moving telescopic chuck
4, static pressure compaction draining grouting equipment of extricating oneself from a predicament and brace oneself up to action at a slow speed is constructed to next process place.
The above; be only better case study on implementation in the technology of the present invention constructure scheme; every above case study on implementation is done according to patented technology of the present invention the trickle amendment of any essence, equivalently replace and improve, within the protection domain that all should be included in art solutions of the present invention.
Claims (4)
1. the construction treating methods of a high frequency static pressure compaction draining slip casting composite foundation: static pressure compaction draining grouting equipment comprises three parts, Part I hammers (1) into shape by with high-frequency hydraulic static pressure, flange (2), special fixture chute crossbeam (3), the static pressure fixture association composition of moving telescopic chuck (4), Part II is made up of static pressure compaction firming plate (5) and steel pile casting (6), Part III is by the drain pipe system that steel pile casting inwall is arranged (7), the high-pressure slip-casting pipe group (8) arranged at the bottom of firming plate, high-pressure slip-casting connects transverse tube (9) composition, its construction sequence is as follows:
A, mark off some different pretreatment construction block according to mechanics index of physics in design working drawing and geological mapping report, and bury and put telltale mark well;
B, pretreatment construction block in, first squeezing into band drain to soil layer design elevation place by design working drawing, bassets and is connected to draining on drainage duct in band drain top;
C, increase by one group of light-duty tube well dewatering system of deep layer again and be placed into soil layer design elevation place in pretreatment construction block, reduce the water level under operation side quickly;
D, startup high-frequency hydraulic static pressure hammer (1), by flange (2) and special fixture chute crossbeam (3), the moving telescopic chuck (4) of connection, quick compacted compacting original position soft soil (12) of exerting pressure of shaking is executed on the top of clamping static pressure compaction firming plate (5) and steel pile casting (6), start the drain pipe system (7) that steel pile casting inwall is arranged simultaneously and implement Active Drainage, start the high-pressure slip-casting pipe group (8) arranged at the bottom of firming plate subsequently and implement mortar depositing construction;
After e, above-mentioned operation complete, start high-frequency hydraulic static pressure hammer (1), by flange (2) and special fixture chute crossbeam (3), the moving telescopic chuck (4) of connection, static pressure compaction draining grouting equipment of extricating oneself from a predicament and brace oneself up to action at a slow speed is constructed to next process place;
F, on processed good ground to recently backfill, blow become silted up backfill weak soil directly carry out dehydration high frequency roll shake extrude close construction.
2. construction treating methods according to claim 1, is characterized in that: on steel pile casting (6) inwall, be provided with drain pipe system.
3. construction treating methods according to claim 1, is characterized in that: static pressure compaction firming plate (5) end is provided with high-pressure slip-casting pipe group.
4. construction treating methods according to claim 1, is characterized in that: the soil body after Combined Treatment has the closely knit composite crust layer of certain thickness middle-shallow layer foundation soil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110178036.5A CN102852132B (en) | 2011-06-28 | 2011-06-28 | The construction treating methods of high frequency static pressure compaction draining slip casting composite foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110178036.5A CN102852132B (en) | 2011-06-28 | 2011-06-28 | The construction treating methods of high frequency static pressure compaction draining slip casting composite foundation |
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| Publication Number | Publication Date |
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| CN102852132A CN102852132A (en) | 2013-01-02 |
| CN102852132B true CN102852132B (en) | 2015-10-14 |
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| CN112593612B (en) * | 2020-11-19 | 2022-04-12 | 浙江二十冶建设有限公司 | Existing building peripheral precipitation method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0688329A (en) * | 1992-07-06 | 1994-03-29 | Nit Co Ltd | Ground stabilization building device/having injection rod in polygon cross section |
| CN1213726A (en) * | 1997-10-07 | 1999-04-14 | 孙五奇 | High effective dredging strengthening method of soft foundation |
| JP2000192445A (en) * | 1998-12-24 | 2000-07-11 | Ohbayashi Corp | Consolidation construction method for soft ground |
| CN101191328A (en) * | 2006-12-01 | 2008-06-04 | 上海港湾软地基处理工程有限公司 | Method for treating soft foundation by fast ''information high vacuum impacting dense'' |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7651302B2 (en) * | 2006-04-07 | 2010-01-26 | University Of South Florida | Method of enhanced end bearing capacity via post construction preload/reload |
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2011
- 2011-06-28 CN CN201110178036.5A patent/CN102852132B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0688329A (en) * | 1992-07-06 | 1994-03-29 | Nit Co Ltd | Ground stabilization building device/having injection rod in polygon cross section |
| CN1213726A (en) * | 1997-10-07 | 1999-04-14 | 孙五奇 | High effective dredging strengthening method of soft foundation |
| JP2000192445A (en) * | 1998-12-24 | 2000-07-11 | Ohbayashi Corp | Consolidation construction method for soft ground |
| CN101191328A (en) * | 2006-12-01 | 2008-06-04 | 上海港湾软地基处理工程有限公司 | Method for treating soft foundation by fast ''information high vacuum impacting dense'' |
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Effective date of registration: 20210513 Address after: 102308 046, 6th floor, building 2, yard 5, Longxing south 2nd Road, Mentougou District, Beijing Patentee after: Beijing Kaitai Construction Engineering Co.,Ltd. Address before: 518031 1-205, Jinhua xinju, HUAFA South Road, Futian District, Shenzhen City, Guangdong Province Patentee before: Chang Lei |