WO2017204400A1 - Procédé de construction d'un ancrage au sol amélioré, ayant une longueur fixe d'ancrage étendue, mettant en œuvre un dispositif de perforation et de malaxage étendu - Google Patents

Procédé de construction d'un ancrage au sol amélioré, ayant une longueur fixe d'ancrage étendue, mettant en œuvre un dispositif de perforation et de malaxage étendu Download PDF

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Publication number
WO2017204400A1
WO2017204400A1 PCT/KR2016/007281 KR2016007281W WO2017204400A1 WO 2017204400 A1 WO2017204400 A1 WO 2017204400A1 KR 2016007281 W KR2016007281 W KR 2016007281W WO 2017204400 A1 WO2017204400 A1 WO 2017204400A1
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WO
WIPO (PCT)
Prior art keywords
expansion
excavation
stirring device
cement
hinge block
Prior art date
Application number
PCT/KR2016/007281
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English (en)
Korean (ko)
Inventor
김인철
Original Assignee
(주)대안소일텍
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 (주)대안소일텍 filed Critical (주)대안소일텍
Priority to CN201680011062.XA priority Critical patent/CN108026709B/zh
Publication of WO2017204400A1 publication Critical patent/WO2017204400A1/fr

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    • 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
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • E02D5/803—Ground anchors with pivotable anchoring members
    • 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
    • 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
    • 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
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • 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
    • E02D5/74—Means for anchoring structural elements or bulkheads
    • E02D5/80—Ground anchors
    • E02D5/808—Ground anchors anchored by using exclusively a bonding material
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2200/00—Geometrical or physical properties
    • E02D2200/15—Geometrical or physical properties including at least a hinge
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2250/00—Production methods
    • E02D2250/003—Injection of material
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2300/00—Materials
    • E02D2300/0004—Synthetics
    • E02D2300/0018—Cement used as binder
    • E02D2300/002—Concrete
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D2600/00—Miscellaneous
    • E02D2600/30—Miscellaneous comprising anchoring details

Definitions

  • the present invention relates to a method for constructing an anchorage expansion type ground anchor using an enlarged excavation stirring device, in particular, to enhance the agitation effect of cement grout material in the anchorage section, and to form a high-quality enlarged cement bulb to tighten the anchor body.
  • the present invention relates to a method for constructing an anchorage expansion-type ground anchor using an enlarged excavation stirring device capable of shortening the construction time of enlarged excavation and stirring.
  • ground anchors need to be anchored in the ground (especially in soft ground with an N value less than 15), it is necessary to ensure a constant anchoring force (anchor bearing capacity) due to various factors occurring during drilling and injection. Due to the nature of the ground, there is a limit to the shear stress of the ground.
  • Korean Laid-Open Patent Publication No. 10-2009-0094734 (soil surface stabilization method) has been proposed.
  • This is a method of injecting cement grout material into the anchorage expansion hole by slowly pulling it up while rotating the drilling plant from the bottom to the anchorage hole, after drilling the expansion hole in the rotating drilling device as the arm expands by hydraulic pressure. Is done.
  • the present invention is to expand the stirring effect of the cement grout material in the anchorage section, to form a high-quality enlarged cement bulb to increase the tension fastening performance of the anchor body, the expansion excavation stirring device that can shorten the construction time of expansion excavation and stirring
  • the purpose of the present invention is to provide a method for constructing an anchorage enlarged ground anchor using an expansion method.
  • the expansion excavation stirring device is rotated and reciprocated in the anchorage section while spraying the secondary cement grout material from the expansion excavation stirring device to enlarge the excavation.
  • the primary cement grout material and the secondary cement grout material are characterized in that the ratio of water-cement is 100% to 180%.
  • the tertiary cement grout material is characterized in that the water-cement ratio is 50% or less.
  • the expansion excavation stirring device an inner rod adapter coupled to the inner rod through a screw connection of one end;
  • a grout injection shaft coupled to the other end of the inner rod adapter and having a plurality of grouting injection holes positioned in a section between the fixed side hinge block and the movable side hinge block;
  • An excavation head coupled to an end of the grout injection shaft;
  • a fixed side hinge block inserted into the grout injection shaft and fixed to the other end of the inner rod adapter;
  • a movable side hinge block movably inserted into the grout injection shaft;
  • a stirring blade having one end rotatably hinged to the movable side hinge block;
  • a stirring blade operating lever having one end hinged to the movable side hinge block and the other end hinged to the stirring blade;
  • It is characterized in that it comprises a stirring blade expansion spring is inserted into the outer diameter portion of the grout injection shaft and disposed between the movable side hinge block and the excavation head to provide an expansion force to open the stirring blade.
  • the stirring blade is characterized in that arranged at intervals of 90 degrees around the shaft for grout injection.
  • the grout injection shaft is characterized in that the leaf spring is provided that provides the initial expansion force at the moment of exiting the out casing in the state that the stirring blade is folded.
  • the stirring angle stopper is installed between the fixed side hinge block and the movable side hinge block to be fixed to the grout injection shaft in order to limit the rotation angle within a certain installation. It is characterized by that.
  • the excavation head may include a head connection portion whose one end is screwed to the grout injection shaft; An excavation head portion formed conically in the other end of the head connection portion; A grouting injection passage extending from the head connection portion by a predetermined depth; An excavation bit attached to the conical surface of the excavation head portion at regular intervals; It is characterized in that it is produced by forming a plurality of head grooves that are formed concave at regular intervals in the excavation head portion at regular intervals to form a passage for the grout liquid to be sprayed smoothly to the stirring blade side.
  • the drilling head portion is characterized in that a plurality of grouting injection port is further formed.
  • the stirring effect is enhanced.
  • the tertiary cement grout material which is filled and expanded inside the pack or the ERP corrugated pipe, is cured, a high quality cement bulb prevents the anchoring body from escaping from the anchor body, thereby improving tension fastening performance.
  • expansion and excavation is performed in the primary cement grout material portion filled in the anchorage section than when expanding and fixing the base plate of the fixing unit, and thus the construction time can be greatly shortened.
  • the enlarged excavation stirring device applied in the present method is capable of automatically expanding the stirring blade mechanically by the stirring blade expansion spring without using a separate power, thereby eliminating the need for an electric power device and simplifying the configuration. Easy to manufacture and less trouble of failure.
  • 1 to 8 is a process flow chart of the anchorage expansion improvement type ground anchor construction method using the expansion excavation stirring apparatus according to the present invention
  • Figure 5 is a state diagram to remove the expansion and excavation stirring apparatus inserted in the out casing
  • FIG. 6 is a state diagram in which the anchor assembly is inserted into the outer casing and the pack is placed in the enlarged and stirred fixing section.
  • 8A is a state diagram in which the simmite grout material is injected and filled into the pack of the anchor assembly
  • FIG. 8B is a cross-sectional view taken along the line A-A of FIG. 8A,
  • FIG. 9 is a perspective view according to an embodiment of the expansion excavation stirring apparatus applied to the construction method of the present invention.
  • FIG. 10 is an exploded perspective view of FIG. 9,
  • FIG. 11 is a side view of FIG. 10 and is an expanded state of operation as soon as the stirring blade exits the outer casing.
  • FIG. 12 is a cross-sectional view of FIG. 11,
  • Fig. 13 is a state diagram in which the stirring blades of the enlarged excavation stirring device are folded in the out casing.
  • FIG. 1 to 8 show the process flow diagram of the anchorage expansion type improved ground anchor construction method using the expansion excavation stirring apparatus according to the present invention.
  • the drilling operation is performed while drawing the outcasing 7 to the tip of the anchorage section S2 of the ground 1.
  • the drilling operation may be performed by, for example, pressurizing water into the inside of the outcasing 7.
  • the amount of work included in the excavation area is relatively small during the enlarged excavation process to be described later, the excavation load is reduced to improve the work speed and expand excavation This becomes easy.
  • the primary cement grout material 1a is injected into the fixing unit section S2 into the out casing 7.
  • the cement grout material to be injected is preferably made of a water-cement ratio of 100% to 180% by weight.
  • the water-cement ratio is approaching 100% in soft ground and 180% in non-soft ground.
  • the outcasing 7 is drawn to only the tip of the free field S1 so that the outcasing 7 is removed from the fixation section S2.
  • the primary cement grout material 1a is filled in the anchorage section S2 in the absence of the out casing 7.
  • the primary cement grout material 1a remains in the anchorage section S2 from which the out casing 7 is removed, thereby increasing the performance of the enlarged excavation in the enlarged excavation process and shortening the stirring time. It becomes possible.
  • the secondary cement grout material is mixed with the primary cement grout material and at the same time, a small amount of soil is stirred together.
  • the out casing 7 is drilled to the anchorage section and drawn out, the amount of work included in the excavation area is relatively small, so that the excavation load is reduced, and the expansion excavation work speed is improved. And enlarged excavation becomes easy.
  • only a small amount of small amount of the mixture is mixed, so that the density of the cement grout material is increased, and thus, high-quality expanded cement bulbs can be expected.
  • the secondary cement grout material is preferably made in the same manner as the water-cement ratio (100% to 180%) of the primary cement grout material so that physical mixing is performed well.
  • the back pressure is formed due to the injection pressure of the secondary cement grout material sprayed from the expansion excavation stirring device 10, due to this back pressure generated in the anchorage section (S2) inside the outcasing (7) Slime is filled.
  • This slime is a mucus mixed with a small amount of earth and sand mixed with primary and secondary cement grouts.
  • the enlarged excavation stirring device 10 is removed from the out casing 7 and removed. Therefore, the primary cement grout material and the secondary cement grout material are mixed in the anchorage section S2 to form an enlarged high quality cement bulb 200.
  • the anchor assembly 300 having the pack 304 (or corrugated pipe) installed at the distal end of the pack 304 is inserted into the out casing 7 so that the pack 304 is positioned at the enlarged and stirred fixing section S2.
  • the pack 304 may be made of geotextiles.
  • the pack or corrugated pipe is connected with a hose (not shown) for injecting a third cement grout material which is additionally injected.
  • Unexplained symbol 310 is a strand.
  • a third cement grout material having a water-cement ratio of 50% or less is injected and filled into the pack 304 of the anchor assembly 300 through the hose as shown in FIG. 8A.
  • the third cement grout material is injected through an injection hose (not shown) provided in the anchor assembly 300.
  • the pack 304 of the anchor assembly 300 expands with the tertiary cement grout material filled therein, and when the tertiary cement grout material is cured, an internal anchor bulb 306 is formed as shown in FIG. 8B to enlarge the cement bulb 200. ) Has resistance to pull out.
  • the anchor assembly 300 is tensioned through a conventional method, and the anchor assembly 300 has a high pull resistance by the internal anchor bulb 306 inside the enlarged cement bulb 200.
  • the stirring effect is enhanced, and the amount of small amount of cement is relatively small. It is to form a high-quality enlarged cement bulb 200 is mixed with a large amount of grout material. Therefore, the strength of the enlarged cement bulb 200 is increased, thereby reducing the risk of fracture due to the drawing of the anchor assembly 300.
  • the enlarged cement bulb 200 forms a high-quality cement layer having a high cement density, thereby increasing adhesion to the internal anchor bulb 306, thereby improving frictional force, thereby increasing drawing resistance.
  • an internal anchor bulb 306 is formed, and the internal anchor bulb 306 is integrally formed with the enlarged cement bulb 200.
  • the pullout resistance is exhibited at.
  • the enlarged excavation stirring device 10 is connected to the tip of the inner rod 5 to perform the enlarged excavation and grouting of the anchor anchor.
  • Inner rod (5) is connected to a drive driver (not shown) is a rotation and insertion is made into the ground, there is a structure in which a hollow that is the injection passage of grout liquid formed therein.
  • the expansion excavation stirring device 10 includes an inner rod adapter 12, a grout injection shaft 14, an excavation head 15, a fixed side hinge block 16, a movable side hinge block 18, and a stirring blade 20. And a stirring blade operating lever 22 and a stirring blade expansion spring 24.
  • the inner rod adapter 12 has a penetrated hollow that is a passage of the grout material on the central axis, and a conical portion 122 extending from the screw portion 121 and the screw portion 121 with a conical angle to the outer circumferential surface thereof. At this time, the maximum outer diameter of the cone portion 122 is formed smaller than the inner diameter of the outcasing (7). Therefore, the inner rod adapter 12 is screwed with the front end of the inner rod 5 through one end of the screw portion 121.
  • the cone portion 122 is the center of the enlarged excavation stirring device 10 when the enlarged excavation stirring device 10 is pulled out of the front end of the outcasing 7 for the enlarged excavation and then retracted into the inside of the outcasing 7. It also serves to guide the axis to easily align with the central axis of the outcasing 7.
  • the grout injection shaft 14 is made hollow so that the passage of the grout material is formed on the central axis.
  • the grout injection shaft 14 is chamfered in all directions (left, right, up and down) to a circular cross section in this embodiment and has a rectangular cross section shape. Therefore, the grout injection shaft 14 prevents rotation during movement of the movable side hinge block 18 and guides linear movement.
  • the cross-sectional shape of the grout injection shaft 14 is not limited to this rectangular cross section, and may be chamfered in three directions or chamfered in five or more directions depending on the number of stirring blades 20 to be installed.
  • the grout injection shaft 14 may have a circular cross section.
  • the grout injection shaft 14 connects the inner rod adapter 12 and the excavation head 15. Both ends of the grout injection shaft 14 are connected to the inner rod adapter 12 and the excavation head 15 through screwing, respectively.
  • the grout injection shaft 14 has a plurality of grouting injection holes 141 located in a section between the fixed side hinge block 16 and the movable side hinge block 18.
  • the plurality of grouting injection holes 141 may have a circular arrangement at regular intervals.
  • the drilling head 15 is coupled to the end of the grout injection shaft 14.
  • Excavation head 15 may be a variety of forms, but as illustrated, one end of the head connection portion 151 screwed to the grout injection shaft 14, the excavation head portion formed in the other end of the head connection portion 151 in a conical shape ( 152, the grouting injection passage 153 formed extending from the head connecting portion 151 by a predetermined depth of the excavating head portion 152, the excavating bits 154 are arranged in a plurality of conical surfaces of the excavating head portion 152, It is manufactured by constructing a plurality of head grooves 155 which are formed concave at the maximum outer diameter portion of the excavating head portion 152 at regular intervals to form a passage for allowing the grout liquid to be smoothly flows to the stirring blade 20 side. have.
  • the drilling head 15 may further include a plurality of grouting injection holes 156 communicating with the grouting injection passage 153 and formed in the drilling head 152.
  • the grouting injection hole 156 is formed at the center and the conical surface of the front end side of the excavation head 152.
  • the grouting injection hole 156 formed on the conical surface of the excavation head 152 is preferably formed at an angle of 15 ° to 60 ° with respect to the central axis of the excavation head 15 in consideration of an increase in the spraying effect of the grout material.
  • the fixed side hinge block 16 is inserted into the grout injection shaft 14 and coupled to the other end of the inner rod adapter 12 by bolt coupling.
  • the fixed side hinge block 16 has hinge pins 17a coupled in all directions to rotatably support the stirring blade 20.
  • the movable side hinge block 18 is slidably inserted into the grout injection shaft 14.
  • the movable side hinge block 18 has the same inner diameter as the outer diameter end face of the grout injection shaft 14, so that rotation is suppressed and only linear movement is possible.
  • the movable side hinge block 18 is coupled with hinge pins 17b in all directions.
  • the stirring blade 20 is not limited to the illustrated length and may be increased or decreased depending on the radius of rotation required for the enlarged excavation. In the present embodiment, four stirring blades 20 are arranged on the circumference with a 90 degree interval therebetween, but two to six depending on the hinge points of the fixed side hinge block 16 and the movable side hinge block 18. Up and down is possible.
  • the stirring blade operating lever 22 has one end connected to the movable side hinge block 18 via a hinge pin 17b and the other end connected to the stirring wing 20 via a hinge pin 17c.
  • the stirring blade operating lever 22 extends the stirring blade 20 according to the moving direction of the movable side hinge block 18 and expands as shown in FIG. 3 or folds as shown in FIG. 5.
  • the stirring blade operation lever 22 is the stirring blade 20 when the expansion excavation stirring device 10 is pulled out of the front end of the out casing (7) for the enlarged excavation and then pulled back into the inside of the out casing (7) While moving, the movable side hinge block 18 is moved to compress the stirring blade expansion spring 24.
  • the stirring blade expansion spring 24 provides a force for compressing repulsion to allow the stirring blade 20 to be unfolded.
  • the stirring blade extension spring 24 is inserted into the outer diameter portion of the grout injection shaft 14 and is compressed and disposed between the movable side hinge block 18 and the excavation head 15. Therefore, the stirring blade expansion spring 24 pushes the movable side hinge block 18 by the compression repulsive force to open the stirring blade 20 through the stirring blade operating lever 22. Therefore, as shown in FIG.
  • the grout injection shaft 14 in the enlarged excavation stirring device 10 in the initial stage so that the stirring blade 20 can be well opened at the moment of exiting the out casing 7 while the stirring blade 20 is folded.
  • the leaf spring 13 which provides the expansion force is further installed.
  • the leaf spring 13 may be positioned between the fixed side hinge block 16 and the movable side hinge block 18 to be bolted or welded to the grout injection shaft 14.
  • the leaf spring 13 is curved at both ends or one end except for the center-side fixing portion to exert elastic repulsive force.
  • four leaf springs 13 are provided at the chamfered portions of the grout injection shaft 14 to correspond to the stirring blades 20 one-to-one. Therefore, when the stirring blade 20 is folded in the outcasing 7 as shown in FIG.
  • the expansion and excavation stirring device 10 may be further provided with a stirring blade stopper 142 to limit the rotation angle within a certain time when the stirring blade 20 is rotated to expand.
  • the stirring blade stopper 142 is positioned between the fixed side hinge block 16 and the movable side hinge block 18 and is fixed to the grout injection shaft 14 via a stopper bolt 143.
  • the stirring blade stopper 142 is configured as a ring, but is not limited to this form.
  • the stopper bolt 143 is positioned in the cutting groove 14a of the grout injection shaft 14 to be fastened to fix the position of the stopper 142 for the stirring blade.
  • the enlarged excavation stirring device 10 is preferably formed in the inner rod adapter 12 and the fixed side hinge block 16 is formed with a plurality of slime discharge passage 19 for smoothing the slime when the cement bulb is formed on the outer peripheral surface.
  • the enlarged excavation stirring device 10 exits the out casing 7 to form a primary enlarged cement bulb by enlarged excavation and stirring, and then the enlarged excavating stirring device 10 is out casinged. When it is drawn back into the inside of 7), it forms a secondary cement bulb and smoothes slime discharge.
  • the enlarged excavation stirring device 10 configured as described above is charged into the inside of the outcasing 7 in a state in which the stirring blade 20 is forcibly folded as shown in FIG. 13 to form an enlarged cement bulb, and then out as shown in FIG. 4.
  • the stirring blade 20 is automatically unfolded by the compression repulsive force of the stirring blade expansion spring 24, it is possible to prepare for expansion excavation.
  • the stirring blade 20 is rotated in the open state and the cement grout material is discharged through the grouting injection hole 156 to simultaneously excavate and stir to form a high quality enlarged cement bulb 200 after curing. do.
  • the enlarged excavation agitator 10 may automatically expand the stirring blade 20 mechanically by using the stirring blade extension spring 24 without using a separate power, thereby eliminating the need for an electric power device.
  • the configuration is simpler, so it is easier to manufacture and there is less fear of failure.
  • the anchorage expansion type ground anchor using the expansion excavation stirring device of the present invention is agitation effect is enhanced because expansion excavation is made while injecting the secondary cement grout material from the primary cement grout material portion filled in the anchorage section,
  • the high quality cemented bulb prevents the anchor body from escaping and improves the tension tightening performance.
  • Expansion excavation and stirring is performed in the primary cement grout portion filled in the section has the advantage that can significantly shorten the construction time.
  • the enlarged excavation stirring device applied in the present method is capable of automatically expanding the stirring blade mechanically by the stirring blade expansion spring without using a separate power, thereby eliminating the need for an electric power device and simplifying the configuration. It is a very useful invention that is easy to manufacture and less trouble of failure.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Mining & Mineral Resources (AREA)
  • Paleontology (AREA)
  • Civil Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Agronomy & Crop Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Soil Sciences (AREA)
  • Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
  • Piles And Underground Anchors (AREA)

Abstract

La présente invention concerne un procédé pour un ancrage au sol amélioré ayant une longueur fixe d'ancrage étendue, mettant en œuvre un dispositif de perforation et de malaxage étendu, le procédé améliorant l'effet de malaxage d'un matériau de coulis de ciment dans une section de longueur fixe d'ancrage, améliorant les performances de d'accouplement en tension d'un corps d'ancrage en formant une racine de ciment de haute qualité, et permettant de réduire la durée de perforation et de malaxage.
PCT/KR2016/007281 2016-05-26 2016-07-06 Procédé de construction d'un ancrage au sol amélioré, ayant une longueur fixe d'ancrage étendue, mettant en œuvre un dispositif de perforation et de malaxage étendu WO2017204400A1 (fr)

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CN201680011062.XA CN108026709B (zh) 2016-05-26 2016-07-06 利用扩挖搅拌装置的锚固区扩大改良型地锚施工方法

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KR10-2016-0065121 2016-05-26
KR1020160065121A KR101777774B1 (ko) 2016-05-26 2016-05-26 확대굴착 교반장치를 이용한 정착장 확대개량형 그라운드앵커 시공 공법

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115999196A (zh) * 2023-03-27 2023-04-25 湖南省水产科学研究所 一种便携式水体污染物富集装置

Families Citing this family (3)

* Cited by examiner, † Cited by third party
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CN109881672A (zh) * 2019-03-25 2019-06-14 厦门市金海明工贸有限公司 一种铰刀型扩体地锚
CN112663426B (zh) * 2020-12-22 2022-04-12 安徽峰明建设工程有限公司 公路沥青路面的施工方法
CN114922661B (zh) * 2022-07-21 2022-10-25 中南大学 一种盾构隧道混凝土管片微型加固桩

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006052575A (ja) * 2004-08-11 2006-02-23 Kokudo Sogo Kensetsu Kk 地盤穿孔装置
KR20090094734A (ko) * 2008-03-03 2009-09-08 주식회사 세이프씨앤이 토사면 안정화 공법
KR101077960B1 (ko) * 2010-11-18 2011-10-28 (주)삼일이엔씨 지중 확공부의 형상유지 기능을 갖는 천공경 확장드릴 및 그를 이용한 건설공사용 말뚝 및 인장부재 시공방법
KR101481123B1 (ko) * 2014-02-28 2015-01-14 주식회사 대성방재기술 연약지반용 확장 천공 장치 및 이를 이용한 연약지반 보강 공법
KR101582068B1 (ko) * 2015-03-26 2015-12-31 김인철 확대굴착 교반장치를 이용한 정착장 확대개량형 그라운드앵커 시공 공법

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973409A (en) * 1974-07-05 1976-08-10 Kabushiki Kaisha Takechi Koumusho Apparatus for establishing an anchor
JP2546733B2 (ja) * 1990-04-27 1996-10-23 株式会社フジタ 圧密土地盤のアンカー施工法
CN1095781A (zh) * 1993-05-27 1994-11-30 卢锡焕 用以增进锚碇力的扩座地锚侧向灌浆施工法
CN1110754A (zh) * 1994-08-08 1995-10-25 何庆林 大头锚杆施工方法及其使用的专用钻机
CN101260669B (zh) * 2008-04-24 2010-07-07 中国京冶工程技术有限公司 钻喷注一体化扩体锚杆施工方法
KR101565767B1 (ko) 2014-11-18 2015-11-12 (주)진성토건이엔씨 정착장 확대 지반 앵커의 시공방법
KR101641467B1 (ko) 2015-09-17 2016-07-20 김효숙 확대굴착 교반장치를 이용한 정착장 확대개량형 그라운드앵커 시공 공법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006052575A (ja) * 2004-08-11 2006-02-23 Kokudo Sogo Kensetsu Kk 地盤穿孔装置
KR20090094734A (ko) * 2008-03-03 2009-09-08 주식회사 세이프씨앤이 토사면 안정화 공법
KR101077960B1 (ko) * 2010-11-18 2011-10-28 (주)삼일이엔씨 지중 확공부의 형상유지 기능을 갖는 천공경 확장드릴 및 그를 이용한 건설공사용 말뚝 및 인장부재 시공방법
KR101481123B1 (ko) * 2014-02-28 2015-01-14 주식회사 대성방재기술 연약지반용 확장 천공 장치 및 이를 이용한 연약지반 보강 공법
KR101582068B1 (ko) * 2015-03-26 2015-12-31 김인철 확대굴착 교반장치를 이용한 정착장 확대개량형 그라운드앵커 시공 공법

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115999196A (zh) * 2023-03-27 2023-04-25 湖南省水产科学研究所 一种便携式水体污染物富集装置
CN115999196B (zh) * 2023-03-27 2023-06-27 湖南省水产科学研究所 一种便携式水体污染物富集装置

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