WO1993002257A1 - Outil servant a introduire un materiau de stabilisation dans le sol - Google Patents

Outil servant a introduire un materiau de stabilisation dans le sol Download PDF

Info

Publication number
WO1993002257A1
WO1993002257A1 PCT/SE1992/000526 SE9200526W WO9302257A1 WO 1993002257 A1 WO1993002257 A1 WO 1993002257A1 SE 9200526 W SE9200526 W SE 9200526W WO 9302257 A1 WO9302257 A1 WO 9302257A1
Authority
WO
WIPO (PCT)
Prior art keywords
wings
wing
tool
soil
shaft
Prior art date
Application number
PCT/SE1992/000526
Other languages
English (en)
Inventor
Lars Holmqvist
Original Assignee
Bpa Byggproduktion Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bpa Byggproduktion Ab filed Critical Bpa Byggproduktion Ab
Priority to PL92298507A priority Critical patent/PL169664B1/pl
Priority to DE4292374T priority patent/DE4292374T1/de
Publication of WO1993002257A1 publication Critical patent/WO1993002257A1/fr
Priority to FI940217A priority patent/FI108664B/fi
Priority to NO940165A priority patent/NO309051B1/no

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
    • E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
    • E02D3/126—Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/05—Stirrers
    • B01F27/11—Stirrers characterised by the configuration of the stirrers
    • B01F27/112—Stirrers characterised by the configuration of the stirrers with arms, paddles, vanes or blades

Definitions

  • This invention relates to a tool for the introduction of soil consolidating agents, i.e. lime, cement or the like, into the soil material which tool is arranged during a moving downwardly phase followed by a pull-up phase to distribute the soil consolidating agent into the soil volume affected by the tool.
  • soil consolidating agents i.e. lime, cement or the like
  • a tool includes briefly a hollow rod and one or more helically shaped wings or fins. During the turning of the tool, soil consolidating material is pumped or pressed out of the tool through holes in the rod or the wings so that it will be mixed into the ground material passed by the wings or arms.
  • the known tools do not, because of their construction, allow an adequate mix-up of soil consolidating agent into the complete cylinder shaped soil material volume even if you according to the American patent, by reducing the pitch of the screw, has tried to minimize the axial distance between the material strips pumped or pressed out in the shape of a screw thread.
  • the known art does not result in a continuous soil material column or cylinder where the consolidating agent is evenly and completely mixed into the material along the whole le$P ⁇ * th of the column.
  • One purpose with this invention is to bring about a new tool for the purpose mentioned above which tool is so arranged that it ensures a homogenous and complete mixing of the consoli at ng agents or materials along the whole length of the affected and treated so l material volume in order to create a stabilizing column having satisfactory carrying ability and ability to withstand also lateral forces.
  • the tool according to this invention which includes a central shaft having one or more channels for supplying consolidating agents in powder or slurry form or as a more or less viscous slurry/liquid and a number of wings or arms extending from said shaft, is characterized by that wings arranged in pairs are set in order to cut through the soil material in an angle correspon ⁇ ding to the pitch of the tool as a whole per turn of rotation are localized in such an axial distance relatively to each other that on the moving down of the tool into the ground during rotation thereof, each wing follows its screw thread shaped path so that figuratively speaking a number of separate threads corresponding to the number of wings, each including soil consolidating agent, are introduced into 3 the soil material, wherein if the number of wings is n, the distance betv/een each of the screw thread shaped paths s 1/n of the pitch per turn.
  • the tool Besides being by influence from the separate but adjacent each other localized paths following wings displacing the soil material upwardly and downwardly the tool also results in a further enhanced mixing of soil or ground material and mixing into same of the consolidating agent, because of Dreferablv on the upper and lower side of each wing arranged cams which are obliquely arranged relatively to the screw thread line following the path of each wing and more in detail so that the cams on one side of the wing are obliquely arranged in the one direction whereas the cams of the opposite side are obliquelv arranged in the other direction, which results -in the soil material affected by each such wing to being displaced in the one or the other direction outwardly from the axis and inwardly towards the same, respectively.
  • the distance between the levels of the wings and the width of the wings is so chosen that the surface of adherence against the blades and the adherence force resulting thereof, and the pressing power of the cams against the soil together, is less than the shear force in the soil along an imaginary cylinder surface circumscribing the soil material volume affected by the tool, and this for the purpose of preventing a carrying along of all of this cylinder shaped soil or ground material body because of the adherence to the tool .
  • Figure 2 in a perspective view shows a portion of a tool according to the invention.
  • a tool which is to be mounted at a principally per se known rotating device has a central shaft 1 carrying a number of wings or arms 2.
  • a channel or passage 3 communicating with a number of radial bores 4 in the shaft 1.
  • An appropriate pump or the like is connected to the channel 3 and by means of this pump a soil consolidating agent may be pressed out through the bores 4 in order to in the way revealed in the following be mixed into the soil or ground material.
  • soil consolidating agent may be mentioned lime and cement but also other agents may be used.
  • the agent can be supplied in solid form as a powder by means of pressurized air pressed through the bores 4 or as a sludge or liquid added by means of pumping devices.
  • the wings 2 are, as is clearly revealed in Figure 2 , set or twisted so that the plane of the same follows a path set out in screw thread form around the shaft 1.
  • the wings 2 are arranged in pairs but axially offset so that each wing in the pair cuts its own screw thread shaped path through the ground, wherein the different paths lie close to each other axially so that material which because of the material displacement caused by each wing by a first wing is pressed axially downwardly, by next wing displaced upwardly.
  • a considerable mixing of the soil material is achieved.
  • each wing 2 * arranged cams 5 wh ch are obliquely arranged in opposite directions on each of the upper and lower side of the wing, a strong sideways, i-.e. radial displacement of soil material is achieved.
  • the soil material affected by each wing will thus be displaced both axially and radially simultane ⁇ ously with supplying consolidating agent along essentially all the length of the tool and this adds to a homogeneous mixing of such agent into all of the cylindrical body of soil or ground material within a cylinder surface defined by the outer ends of the arms 2.
  • each wing 2 on its upper and lower side has at least two cams arranged at an angle towards the radius with their planes localized essentially in parallel with the axis or shaft and so arranged that on the turning of the tool, there occur pressure differences between the upper and lower sides of the wings.
  • the mutual localization of the wings 2 is so adaped to the intended total pitch (S) of the tool at a distance between the screw thread shaped surfaces or paths created by the wings will be l/n where n is equal with the number of wings, whereas the level difference is S/n.
  • S total pitch
  • the axial height of the cams is equal with h and the thickness of the wings t
  • the axial height of the soil material along each screw thread surface affected on passage of a wing 2h + t
  • the distance between the level of the wings and the width of the wings is such that the contact surface bf the soil against the blades/wings and the pressure force against the soil is less than the shear force of the soil material along an imaginary cylinder surface circumscrib ng the also imagined volume of soil being situated inside such cylinder surface.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Paleontology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Chemical & Material Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Agronomy & Crop Science (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Disintegrating Or Milling (AREA)
  • Steroid Compounds (AREA)
  • Soil Working Implements (AREA)

Abstract

Outil servant à introduire et à mélanger un agent de consolidation ou de stabilisation dans le sol, afin de créer un élément en matériau de stabilisation de sol essentiellement cylindrique. Ledit outil comprend un arbre creux rotatif (1) comportant des prolongements sous forme d'ailettes ou de bras (2) et des ouvertures d'éjection (4) de l'agent de consolidation de sol amené par l'arbre. L'aspect nouveau apporté par l'invention est que plusieurs ailettes sont disposées autour de l'arbre, afin de réaliser des trajectoires hélicoïdales sensiblement parallèles à l'inclinaison de l'outil et dont la distance réciproque est telle que chaque ailette (2) suit une trajectoire hélicoïdale spécifique et que les ailettes (2) comportent, sur au moins soit leur face supérieure soit leur face inférieure, au moins une paire de cames ou de nervures (5) disposées obliquement et essentiellement parallèles à l'arbre.
PCT/SE1992/000526 1991-07-18 1992-07-20 Outil servant a introduire un materiau de stabilisation dans le sol WO1993002257A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PL92298507A PL169664B1 (pl) 1991-07-18 1992-07-20 Narzedzie do wprowadzania materialu stabilizujacego grunt PL
DE4292374T DE4292374T1 (de) 1991-07-18 1992-07-20 Werkzeug zur Einbringung erdstabilisierenden Materials
FI940217A FI108664B (fi) 1991-07-18 1994-01-17 Työkalu maata lujittavan aineen lisäämiseksi ja sekoittamiseksi maaperään
NO940165A NO309051B1 (no) 1991-07-18 1994-01-17 Redskap for innføring av jordstabiliserende emne

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9102197-2 1991-07-18
SE9102197A SE469177B (sv) 1991-07-18 1991-07-18 Redskap foer infoerande av markstabiliserande aemne

Publications (1)

Publication Number Publication Date
WO1993002257A1 true WO1993002257A1 (fr) 1993-02-04

Family

ID=20383346

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1992/000526 WO1993002257A1 (fr) 1991-07-18 1992-07-20 Outil servant a introduire un materiau de stabilisation dans le sol

Country Status (6)

Country Link
DE (1) DE4292374T1 (fr)
FI (1) FI108664B (fr)
NO (1) NO309051B1 (fr)
PL (1) PL169664B1 (fr)
SE (1) SE469177B (fr)
WO (1) WO1993002257A1 (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995022417A1 (fr) * 1994-02-19 1995-08-24 Lobbe Xenex Gmbh Gesellschaft Zur Biotechnischen Schadstoffsanierung Mbh Appareil de travail du sol
FR2724189A1 (fr) * 1994-09-02 1996-03-08 Augarde Jacques Procede et dispositif de compactage
EP0774508A2 (fr) * 1995-10-30 1997-05-21 Anton Steinecker Maschinenfabrik GmbH Agitateur rotatif pour cuve de brassage
EP0962595A1 (fr) * 1998-06-05 1999-12-08 Bauer Spezialtiefbau GmbH Appareil à améliorer le sol
WO2009156056A1 (fr) * 2008-06-27 2009-12-30 Soilmec S.P.A. Dispositif pour consolider des sols au moyen de mélange mécanique et d’injection de fluides de consolidation
CN103758460A (zh) * 2013-08-08 2014-04-30 中冶集团武汉勘察研究院有限公司 一种伸缩式防糊钻搅拌桩钻头
CN105944587A (zh) * 2016-06-01 2016-09-21 华国洋 一种纺织用印染染料搅拌机构
EP3106238A1 (fr) * 2015-06-19 2016-12-21 CDM Smith Consult GmbH Procédé d'assainissement de zones contaminées comme des dépôts anciens ou décharges
JP2018111979A (ja) * 2017-01-11 2018-07-19 積水ハウス株式会社 地盤改良攪拌装置
WO2018203489A1 (fr) * 2017-05-02 2018-11-08 株式会社エスエスティー協会 Procédé de formation de structure en béton dans le sol

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108176295B (zh) * 2018-01-15 2020-11-24 安徽省赛旺劳务分包有限公司 一种偏心式固液涂料混合系统

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU912832A1 (ru) * 1980-07-09 1982-03-15 Московское научно-производственное объединение по строительному и дорожному машиностроению "ВНИИстройдормаш" Устройство дл глубинного укреплени грунта
SU1054500A1 (ru) * 1981-06-25 1983-11-15 Институт Строительства И Архитектуры Госстроя Бсср Устройство дл изготовлени грунтобетонных свай
JPS6062324A (ja) * 1983-09-14 1985-04-10 Nippon S Ii C Kk 地盤改良工法
JPS6436817A (en) * 1987-08-03 1989-02-07 Kobe Steel Ltd Ground improvement machine
EP0411560A2 (fr) * 1989-08-03 1991-02-06 TREVI S.p.A. Appareil pour consolider le sol

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU912832A1 (ru) * 1980-07-09 1982-03-15 Московское научно-производственное объединение по строительному и дорожному машиностроению "ВНИИстройдормаш" Устройство дл глубинного укреплени грунта
SU1054500A1 (ru) * 1981-06-25 1983-11-15 Институт Строительства И Архитектуры Госстроя Бсср Устройство дл изготовлени грунтобетонных свай
JPS6062324A (ja) * 1983-09-14 1985-04-10 Nippon S Ii C Kk 地盤改良工法
JPS6436817A (en) * 1987-08-03 1989-02-07 Kobe Steel Ltd Ground improvement machine
EP0411560A2 (fr) * 1989-08-03 1991-02-06 TREVI S.p.A. Appareil pour consolider le sol

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
DERWENT'S ABSTRACT, No. 84-186736/30; & SU,A,1 054 500, Publ. Week 8430, (BELO CONS ARCHITECT). *
DERWENT'S ABSTRACT, No. B2895K/04; & SU,A,912 832, Publ. Week 8304, (MOSC VNIISTROIDORMA). *
PATENT ABSTRACTS OF JAPAN, Vol. 13, No. 223, M-829; & JP,A,01 036 817, 07-02-1989, (KOBE STEEL LTD). *
PATENT ABSTRACTS OF JAPAN, Vol. 9, No. 198, M-404; & JP,A,60 062 324, 10-04-1985, (NIHON ESU II SHII K.K.). *

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995022417A1 (fr) * 1994-02-19 1995-08-24 Lobbe Xenex Gmbh Gesellschaft Zur Biotechnischen Schadstoffsanierung Mbh Appareil de travail du sol
FR2724189A1 (fr) * 1994-09-02 1996-03-08 Augarde Jacques Procede et dispositif de compactage
EP0701026A1 (fr) * 1994-09-02 1996-03-13 Jacques Augarde Procédé et dispositif de compactage
EP0774508A2 (fr) * 1995-10-30 1997-05-21 Anton Steinecker Maschinenfabrik GmbH Agitateur rotatif pour cuve de brassage
EP0774508A3 (fr) * 1995-10-30 2002-06-05 Anton Steinecker Maschinenfabrik GmbH Agitateur rotatif pour cuve de brassage
EP0962595A1 (fr) * 1998-06-05 1999-12-08 Bauer Spezialtiefbau GmbH Appareil à améliorer le sol
WO2009156056A1 (fr) * 2008-06-27 2009-12-30 Soilmec S.P.A. Dispositif pour consolider des sols au moyen de mélange mécanique et d’injection de fluides de consolidation
US8608411B2 (en) 2008-06-27 2013-12-17 Soilmec S.P.A. Device for consolidating soils by means of mechanical mixing and injection of consolidating fluids
CN103758460A (zh) * 2013-08-08 2014-04-30 中冶集团武汉勘察研究院有限公司 一种伸缩式防糊钻搅拌桩钻头
CN103758460B (zh) * 2013-08-08 2016-08-10 中冶集团武汉勘察研究院有限公司 一种伸缩式防糊钻搅拌桩钻头
EP3106238A1 (fr) * 2015-06-19 2016-12-21 CDM Smith Consult GmbH Procédé d'assainissement de zones contaminées comme des dépôts anciens ou décharges
CN105944587A (zh) * 2016-06-01 2016-09-21 华国洋 一种纺织用印染染料搅拌机构
JP2018111979A (ja) * 2017-01-11 2018-07-19 積水ハウス株式会社 地盤改良攪拌装置
WO2018203489A1 (fr) * 2017-05-02 2018-11-08 株式会社エスエスティー協会 Procédé de formation de structure en béton dans le sol

Also Published As

Publication number Publication date
NO940165D0 (no) 1994-01-17
SE9102197D0 (sv) 1991-07-18
SE9102197L (sv) 1993-01-19
NO309051B1 (no) 2000-12-04
PL169664B1 (pl) 1996-08-30
SE469177B (sv) 1993-05-24
FI108664B (fi) 2002-02-28
PL298507A1 (en) 1994-03-07
NO940165L (no) 1994-01-17
FI940217A (fi) 1994-01-17
FI940217A0 (fi) 1994-01-17
DE4292374T1 (de) 1994-07-21

Similar Documents

Publication Publication Date Title
WO1993002257A1 (fr) Outil servant a introduire un materiau de stabilisation dans le sol
EP0619134B1 (fr) Chambre de mélange
CN1077473C (zh) 切削加工用的刀具
DE10043016B4 (de) Bohrnutenfräser
EP0290520B1 (fr) Foret helicoidal
DE3925890C2 (de) Laufrad für eine Kreiselpumpe
CA2738548C (fr) Aleseur
DE60226209T2 (de) Wendefrässchneidplatte
EP1287878B1 (fr) Appareil de traitement des materiaux
EP0347602B1 (fr) Trépan de forage de roche
DE8718098U1 (de) Vorrichtung zum Herstellen einer Gewindebohrung
CN102143817A (zh) 旋转式柄杆刀具
DE29714936U1 (de) Schneideinsatz
EP0452255B1 (fr) Trépan de roche
DE19650487A1 (de) Bohrwerkzeug
DE2931276C2 (fr)
DE3708824A1 (de) Lagerhuelse
EP0537476B1 (fr) Tête de fraisage
EP0144301B1 (fr) Dispositif pour le traitement de pâte à papier
DE2725333C2 (fr)
DE4332977A1 (de) Reib-Mühle und deren Verwendung
DE3840082C2 (de) Vorrichtung zur Herstellung von Hinterschneidungen in Bohrlöchern
RU2206701C2 (ru) Буровое долото
CN219364624U (zh) 一种切割刀排、刀排组及钻具
CN210631954U (zh) 一种搅拌器、推流器的改进叶片

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): DE FI NO PL

DFPE Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101)
WWE Wipo information: entry into national phase

Ref document number: 940217

Country of ref document: FI

RET De translation (de og part 6b)

Ref document number: 4292374

Country of ref document: DE

Date of ref document: 19940721

WWE Wipo information: entry into national phase

Ref document number: 4292374

Country of ref document: DE

WWG Wipo information: grant in national office

Ref document number: 940217

Country of ref document: FI