CN110185386A - Rotary-digging rapid hole forming method for concrete retaining wall of loose accumulation body stratum - Google Patents
Rotary-digging rapid hole forming method for concrete retaining wall of loose accumulation body stratum Download PDFInfo
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- CN110185386A CN110185386A CN201910565780.7A CN201910565780A CN110185386A CN 110185386 A CN110185386 A CN 110185386A CN 201910565780 A CN201910565780 A CN 201910565780A CN 110185386 A CN110185386 A CN 110185386A
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- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000009825 accumulation Methods 0.000 title abstract description 6
- 238000005553 drilling Methods 0.000 claims abstract description 67
- 238000010276 construction Methods 0.000 claims abstract description 21
- 239000002002 slurry Substances 0.000 claims abstract description 13
- 239000002689 soil Substances 0.000 claims abstract description 12
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 239000004575 stone Substances 0.000 claims abstract description 9
- 238000007596 consolidation process Methods 0.000 claims description 9
- 238000005266 casting Methods 0.000 claims description 8
- 238000013461 design Methods 0.000 claims description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 235000014443 Pyrus communis Nutrition 0.000 claims description 5
- 238000007373 indentation Methods 0.000 claims description 5
- 230000008014 freezing Effects 0.000 claims description 3
- 238000007710 freezing Methods 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 240000001987 Pyrus communis Species 0.000 claims 1
- 239000003292 glue Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 description 5
- 241000220324 Pyrus Species 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000015271 coagulation Effects 0.000 description 1
- 238000005345 coagulation Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005429 filling process Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000010412 perfusion Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
- E02D15/04—Placing concrete in mould-pipes, pile tubes, bore-holes or narrow shafts
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Geology (AREA)
- Paleontology (AREA)
- Geochemistry & Mineralogy (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Bulkheads Adapted To Foundation Construction (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention discloses a rotary excavating rapid hole forming method for a concrete retaining wall of a loosely accumulated stratum, which mainly comprises the following construction steps: measuring a lofting embedding hole steel pile casing, constructing by adopting a rotary drilling rig, and after drilling a pile hole depth of about 2m into a loose soil layer, lifting out a drilling bucket of the rotary drilling rig; pouring small stone concrete into the pile hole, and putting a drilling bucket of the rotary drilling rig into the pile hole to repeatedly impact and extrude the concrete downwards so that the small stone concrete or slurry is pressed into a surrounding loose accumulation body under the action of certain impact pressure; and (3) initially setting for 1-2 days, after the small stone concrete or slurry reaches a certain strength, constructing by using the rotary drilling rig again, rotary drilling and removing the concreted concrete in the previous drilled hole, and extruding the concreted concrete into the surrounding loose accumulation body and the concreted concrete adhered to the hole wall to form a circle of concrete concreted body retaining wall. The invention can realize effective drilling of the rotary drilling rig in the stratum of the loose rock-soil accumulation body, quickens the construction progress, avoids the phenomena of hole collapse, drill jamming and the like, and ensures the hole forming quality.
Description
Technical field
The present invention relates to a kind of rotary digging fast pore-creating methods, are specifically a kind of incompact-deposit bodies stratum concrete guard walls
Rotary digging fast pore-creating technology.
Background technique
Rotary digging stake generally refers to the pile foundation by rotary drilling rig drilling and forming hole and concrete perfusion construction molding, full name churning driven
Hole pouring pile, abbreviation rotary digging stake in engineering.Due to using mechanical work, worker's number is required seldom, construction safety is convenient, ground
Layer applicability is wide, and construction efficiency is high, and mechanization degree is high and is promoted rapidly.
Rotary drilling rig efficiency in general argillic horizon, powder soil horizon, strong-weathered rock rock layers is very high, and difficulty of construction is lower, but
If encounter incompact-deposit bodies stratum, work surface hole wall is excavated in rotary digging stake cannot be certainly steady, if arranging without retaining wall measure or retaining wall
When applying weaker, easily collapse hole, pile quality are difficult to ensure repeatedly for appearance, will also result in the delay of duration and the increase of cost.For
Rotary digging drilled as holes in incompact-deposit bodies stratum generally makees retaining wall using all steel casing and carries out drilling and forming hole, but in pile foundation filling process
In, steel pile casting can not be extracted substantially, will be wholly embedded into pile body, drilling construction higher cost, and steel pile casting is pressed into constructing operation
It is not efficient and convenient.
Summary of the invention
Therefore, in order to solve above-mentioned deficiency, the present invention provides a kind of construction under incompact-deposit bodies formation condition herein
Fastly, quality height, a kind of concrete guard wall rotary digging fast pore-creating technology at low cost, easy to operate, save the cost accelerate the duration,
Phenomena such as avoiding the occurrence of collapse hole repeatedly, it is ensured that hole quality.
The invention is realized in this way a kind of incompact-deposit bodies stratum concrete guard wall rotary digging fast pore-creating method is constructed,
It constructs suitable for incompact-deposit bodies stratum such as sandy pear variety, crushed gravel layer, argillic horizons, it is characterised in that: walked including following construction
It is rapid:
(1), surveying and locating excavates embedded 1.5~2m long of steel pile casting to aperture section using excavator, and casing is bigger by 20 than design aperture
~30cm, 30cm above ground level or so；
(2), then rotary drilling rig construct in place, along guide pile dot center be drilled down into 2m or so stake holes depth after (if hole wall from
Surely ability is slightly good can be deeper), propose rotary drilling digger；
(3), micro aggregate concrete (C15~C20) is perfused into stake holes by concrete conveyance conduit；
(4), it is put into the drilling bucket of rotary drilling rig into stake holes, by repeated stock, extruded concrete, makes micro aggregate concrete or slurry
Liquid is under the conditions of certain pressure along native stone gap indentation surrounding incompact-deposit bodies；
(5), concrete initial set 1-2 days are constructed using rotary drilling rig again after concrete or slurries reach some strength, will
It has previously consolidated concrete churning driven in drilling to remove, the consolidation concrete squeezing into incompact-deposit bodies around and being bonded on hole wall will
A circle concrete induration retaining wall is formed, to play support action；
(6), it repeats the above steps, continues subsequent cycle construction, until rotary drilling rig is drilled into design hole depth.
A kind of incompact-deposit bodies stratum concrete guard wall rotary digging fast pore-creating method according to the present invention, feature exist
In；In step (2), using the max. output torque of large-scale rotary drilling rig is 285kNm or 360kNm.
A kind of incompact-deposit bodies stratum concrete guard wall rotary digging fast pore-creating method according to the present invention, feature exist
In；In step (2), the depth that rotary drilling rig is drilled down into generally each is circulated in 2m or so range, with specific reference to stratum feelings
Phenomena such as too deep to prevent drilling depth depending on condition, incompact-deposit bodies self-stable ability is insufficient, generates collapse hole bit freezing.
A kind of incompact-deposit bodies stratum concrete guard wall rotary digging fast pore-creating method according to the present invention, feature exist
In；In step (3), the micro aggregate concrete grade being perfused is C15~C20,180~220mm of the slump, and is mixed with certain ratio
The early strength agent of example improves drilling progress to accelerate the concrete setting retaining wall time.
A kind of incompact-deposit bodies stratum concrete guard wall rotary digging fast pore-creating method according to the present invention, feature exist
In；In step (4), using the drilling bucket repeated stock of rotary drilling rig, extruded concrete, impacting micro aggregate concrete or slurries
Pressure acts in lower edge soil stone gap indentation surrounding incompact-deposit bodies, forms a circle concrete consolidation in borehole circumference after consolidating
Body retaining wall prevents collapse hole to play support action.
A kind of incompact-deposit bodies stratum concrete guard wall rotary digging fast pore-creating method according to the present invention, feature exist
In；In step (5), since third step mixes the effect with early strength agent, micro aggregate concrete initial set is consolidated into substantially after 1-2 days
Shape, and there is some strength, bore the concrete except drill center filling consolidation downwards again by rotary drilling rig, then still further below
2m or so depth is pierced, continues to repeat above-mentioned construction procedure, until rotary digging is to designing hole depth.
The present invention has the advantage that structure of the invention is simple, easy to operate, save the cost accelerates the duration, guarantee at
Quality of pile solves under incompact-deposit bodies strata condition, and work surface is excavated in rotary digging stake cannot be certainly steady, if without retaining wall measure or shield
When wall measure is weaker, easily there is collapse hole repeatedly, a series of problems, such as pile quality is difficult to ensure.Economic serviceability is strong, have compared with
Good application value.
Make compared with retaining wall carries out drilling and forming hole with generalling use all steel casing, incompact-deposit bodies of the invention ground layer concrete
The advantages of retaining wall rotary digging fast pore-creating technology, is:
(1), this method is suitable for the incompact-deposit bodies stratum such as sandy pear variety, crushed gravel layer, argillic horizon；
(2), drilling construction step designs reasonable, easy to operate, save the cost；
(3), by carrying out rotary digging after concrete guard wall supporting, collapse hole and other issues is effectively prevented, guarantees hole quality.
Detailed description of the invention
Fig. 1-Fig. 4 is the incompact-deposit bodies stratum concrete guard wall rotary digging fast pore-creating technical operating procedure that the present invention is implemented
Schematic diagram.
Wherein: steel pile casting 1, concrete guard wall circle 2, casting concrete 3.
Specific embodiment
Below in conjunction with attached drawing 1- Fig. 4, the present invention is described in detail, technical solution in the embodiment of the present invention into
Row clearly and completely describes, it is clear that described embodiments are only a part of the embodiments of the present invention, rather than whole realities
Apply example.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without making creative work
Every other embodiment, shall fall within the protection scope of the present invention.
The present invention provides a kind of incompact-deposit bodies stratum concrete guard wall rotary digging fast pore-creating method by improving herein, fits
It constructs for incompact-deposit bodies stratum such as sandy pear variety, crushed gravel layer, argillic horizons, it is characterised in that: including following construction procedure:
(1), surveying and locating excavates embedded 1.5~2m long of steel pile casting to aperture section using excavator, and casing is bigger by 20 than design aperture
~30cm, 30cm above ground level or so；
(2), then rotary drilling rig construct in place, along guide pile dot center be drilled down into 2m or so stake holes depth after (if hole wall from
Surely ability is slightly good can be deeper), propose rotary drilling digger；
(3), micro aggregate concrete (C15~C20) is perfused into stake holes by concrete conveyance conduit；
(4), it is put into the drilling bucket of rotary drilling rig into stake holes, by repeated stock, extruded concrete, makes micro aggregate concrete or slurry
Liquid is under the conditions of certain pressure along native stone gap indentation surrounding incompact-deposit bodies；
(5), concrete initial set 1-2 days are constructed using rotary drilling rig again after concrete or slurries reach some strength, will
It has previously consolidated concrete churning driven in drilling to remove, the consolidation concrete squeezing into incompact-deposit bodies around and being bonded on hole wall will
A circle concrete induration retaining wall is formed, to play support action；
(6), it repeats the above steps, continues subsequent cycle construction, until rotary drilling rig is drilled into design hole depth.
Wherein, in step (2), using the max. output torque of large-scale rotary drilling rig is 285kNm or 360kNm.
In addition, the depth that rotary drilling rig is drilled down into generally each circulates in 2m or so range, depending on strata condition, with
Phenomena such as anti-drilling depth is too deep, and incompact-deposit bodies self-stable ability is insufficient, generates collapse hole bit freezing.
In step (3), the micro aggregate concrete grade being perfused is C15~C20,180~220mm of the slump, and mixes and match
A certain proportion of early strength agent improves drilling progress to accelerate the concrete setting retaining wall time.
In step (4), using the drilling bucket repeated stock of rotary drilling rig, extruded concrete, make micro aggregate concrete or slurries
Around surge effect lower edge soil stone gap is pressed into incompact-deposit bodies, a circle coagulation is formed in borehole circumference after consolidating
Native induration retaining wall prevents collapse hole to play support action.
It is substantially solid after micro aggregate concrete initial set 1-2 days since third step mixes the effect with early strength agent in step (5)
Form shape, and there is some strength, bores the concrete except drill center filling consolidation downwards again by rotary drilling rig, then again
It is drilled down into 2m or so depth, continues to repeat above-mentioned construction procedure, until rotary digging is to designing hole depth.
The invention discloses a kind of incompact-deposit bodies stratum concrete guard wall rotary digging fast pore-creating technologies, use rotary drilling rig
Construct suitable for incompact-deposit bodies stratum such as sandy pear variety, crushed gravel layer, argillic horizons, main construction procedure is as follows: measurement is put
Sample buries aperture steel pile casting, is constructed using rotary drilling rig, after piercing 2m or so stake holes depth to loose soil bed, proposes rotary digging machine drill
Bucket；Micro aggregate concrete (C15~C20) is perfused into stake holes, and is put into the drilling bucket of rotary drilling rig downward impact extruded is mixed repeatedly
Solidifying soil makes micro aggregate concrete or slurries around the effect of certain impact pressure is pushed down into incompact-deposit bodies；Pre-hardening 1-2 days,
After micro aggregate concrete or slurries reach some strength, again using rotary drilling rig construct, will previously drill in consolidated it is mixed
Solidifying soil churning driven removes, and the consolidation concrete squeezing into incompact-deposit bodies around and being bonded on hole wall will form a circle concrete consolidation
Body retaining wall, to play support action；Continue to repeat the above steps until design hole depth.Loose rock soil accumulation body of the invention
Layer concrete retaining wall rotary digging fast pore-creating technology, than general full-steel cylinder-wall protecting drilling and forming hole method have it is easy to operate, save at
This, is able to achieve effective drilling of the rotary drilling rig in loose rock soil accumulation body stratum, accelerates construction speed, avoid collapse hole card
Phenomena such as brill, it is ensured that hole quality.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be readily apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest scope of cause.
Claims (6)
1. a kind of incompact-deposit bodies stratum concrete guard wall rotary digging fast pore-creating method is suitable for sandy pear variety, crushed gravel layer, glues
The incompact-deposit bodies such as soil layer stratum construction, it is characterised in that: including following construction procedure:
(1), surveying and locating excavates embedded 1.5~2m long of steel pile casting to aperture section using excavator, and casing is bigger by 20 than design aperture
~30cm, 30cm above ground level or so；
(2), then rotary drilling rig construct in place, along guide pile dot center be drilled down into 2m or so stake holes depth after (if hole wall from
Surely ability is slightly good can be deeper), propose rotary drilling digger；
(3), micro aggregate concrete (C15~C20) is perfused into stake holes by concrete conveyance conduit；
(4), it is put into the drilling bucket of rotary drilling rig into stake holes, by repeated stock, extruded concrete, makes micro aggregate concrete or slurry
Liquid is under the conditions of certain pressure along native stone gap indentation surrounding incompact-deposit bodies；
(5), concrete initial set 1-2 days are constructed using rotary drilling rig again after concrete or slurries reach some strength, will
It has previously consolidated concrete churning driven in drilling to remove, the consolidation concrete squeezing into incompact-deposit bodies around and being bonded on hole wall will
A circle concrete induration retaining wall is formed, to play support action；
(6), it repeats the above steps, continues subsequent cycle construction, until rotary drilling rig is drilled into design hole depth.
2. a kind of incompact-deposit bodies stratum concrete guard wall rotary digging fast pore-creating method according to claim 1, feature
It is；In step (2), using the max. output torque of large-scale rotary drilling rig is 285kNm or 360kNm.
3. a kind of incompact-deposit bodies stratum concrete guard wall rotary digging fast pore-creating method according to claim 1, feature
It is；In step (2), the depth that rotary drilling rig is drilled down into generally each is circulated in 2m or so range, with specific reference to stratum
Phenomena such as too deep to prevent drilling depth depending on situation, incompact-deposit bodies self-stable ability is insufficient, generates collapse hole bit freezing.
4. a kind of incompact-deposit bodies stratum concrete guard wall rotary digging fast pore-creating method according to claim 1, feature
It is；In step (3), the micro aggregate concrete grade being perfused is C15~C20,180~220mm of the slump, and is mixed with certain
The early strength agent of ratio improves drilling progress to accelerate the concrete setting retaining wall time.
5. a kind of incompact-deposit bodies stratum concrete guard wall rotary digging fast pore-creating method according to claim 1, feature
It is；In step (4), using the drilling bucket repeated stock of rotary drilling rig, extruded concrete, rushing micro aggregate concrete or slurries
It hits in pressure effect lower edge soil stone gap indentation surrounding incompact-deposit bodies, forms a circle concrete in borehole circumference after consolidating and consolidate
Knot body retaining wall prevents collapse hole to play support action.
6. a kind of incompact-deposit bodies stratum concrete guard wall rotary digging fast pore-creating method according to claim 1, feature
It is；In step (5), since third step mixes the effect with early strength agent, micro aggregate concrete initial set is consolidated into substantially after 1-2 days
Shape, and there is some strength, bore the concrete except drill center filling consolidation downwards again by rotary drilling rig, then still further below
2m or so depth is pierced, continues to repeat above-mentioned construction procedure, until rotary digging is to designing hole depth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910565780.7A CN110185386A (en) | 2019-06-27 | 2019-06-27 | Rotary-digging rapid hole forming method for concrete retaining wall of loose accumulation body stratum |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910565780.7A CN110185386A (en) | 2019-06-27 | 2019-06-27 | Rotary-digging rapid hole forming method for concrete retaining wall of loose accumulation body stratum |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111101865A (en) * | 2019-12-30 | 2020-05-05 | 深圳市盛业地下工程有限公司 | High efficiency drilling equipment |
| CN111458179A (en) * | 2020-04-16 | 2020-07-28 | 河北益坤岩土工程新技术有限公司 | Rock soil sampling method |
| CN112282638A (en) * | 2020-09-09 | 2021-01-29 | 中国水利水电第九工程局有限公司 | Pipe following drilling pore-forming backfill grouting construction method |
| CN112411526A (en) * | 2020-11-27 | 2021-02-26 | 中国建筑第四工程局有限公司 | Mortar consolidation construction method for rotary drilling collapse hole in high backfill region |
| CN112983273A (en) * | 2021-02-26 | 2021-06-18 | 何漪 | Forward convex drilling device for prospecting engineering |
| CN113550306A (en) * | 2021-07-22 | 2021-10-26 | 江西基业科技集团有限公司 | Earth-rock wall protection construction method |
| CN113738272A (en) * | 2021-11-08 | 2021-12-03 | 中建八局发展建设有限公司 | Rotary drilling hole forming construction method for pile foundation in gravel area with easy hole collapse |
| CN114293907A (en) * | 2021-12-29 | 2022-04-08 | 云南建投第五建设有限公司 | Pile foundation pore-forming construction method under boulder water-out stratum condition |
| CN115059060A (en) * | 2022-06-23 | 2022-09-16 | 东莞市恒昌建筑工程有限公司 | Rotary excavating grouting wall protection construction method for complex terrain |
| CN115182334A (en) * | 2022-07-21 | 2022-10-14 | 中国五冶集团有限公司 | Construction method of rotary-excavated cast-in-place pile under miscellaneous fill high-backfill geological condition |
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| CN111458179A (en) * | 2020-04-16 | 2020-07-28 | 河北益坤岩土工程新技术有限公司 | Rock soil sampling method |
| CN112282638A (en) * | 2020-09-09 | 2021-01-29 | 中国水利水电第九工程局有限公司 | Pipe following drilling pore-forming backfill grouting construction method |
| CN112411526A (en) * | 2020-11-27 | 2021-02-26 | 中国建筑第四工程局有限公司 | Mortar consolidation construction method for rotary drilling collapse hole in high backfill region |
| CN112983273A (en) * | 2021-02-26 | 2021-06-18 | 何漪 | Forward convex drilling device for prospecting engineering |
| CN112983273B (en) * | 2021-02-26 | 2024-01-30 | 邢台市中煤矿山器材有限公司 | Forward-convex drilling device for exploratory engineering |
| CN113550306A (en) * | 2021-07-22 | 2021-10-26 | 江西基业科技集团有限公司 | Earth-rock wall protection construction method |
| CN113738272A (en) * | 2021-11-08 | 2021-12-03 | 中建八局发展建设有限公司 | Rotary drilling hole forming construction method for pile foundation in gravel area with easy hole collapse |
| CN114293907A (en) * | 2021-12-29 | 2022-04-08 | 云南建投第五建设有限公司 | Pile foundation pore-forming construction method under boulder water-out stratum condition |
| CN115059060A (en) * | 2022-06-23 | 2022-09-16 | 东莞市恒昌建筑工程有限公司 | Rotary excavating grouting wall protection construction method for complex terrain |
| CN115059060B (en) * | 2022-06-23 | 2023-06-16 | 东莞市恒昌建筑工程有限公司 | Construction method for rotary digging grouting retaining wall of complex terrain |
| CN115182334A (en) * | 2022-07-21 | 2022-10-14 | 中国五冶集团有限公司 | Construction method of rotary-excavated cast-in-place pile under miscellaneous fill high-backfill geological condition |
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Application publication date: 20190830 |