KR20160084088A - Agitating rod for ground excavation - Google Patents

Agitating rod for ground excavation Download PDF

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Publication number
KR20160084088A
KR20160084088A KR1020150000556A KR20150000556A KR20160084088A KR 20160084088 A KR20160084088 A KR 20160084088A KR 1020150000556 A KR1020150000556 A KR 1020150000556A KR 20150000556 A KR20150000556 A KR 20150000556A KR 20160084088 A KR20160084088 A KR 20160084088A
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KR
South Korea
Prior art keywords
rod
stirring
ground
agitating
protruding
Prior art date
Application number
KR1020150000556A
Other languages
Korean (ko)
Inventor
양성문
Original Assignee
양성문
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Filing date
Publication date
Application filed by 양성문 filed Critical 양성문
Priority to KR1020150000556A priority Critical patent/KR20160084088A/en
Publication of KR20160084088A publication Critical patent/KR20160084088A/en

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    • 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
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/78—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices with rotating digging elements
    • E02F3/786—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices with rotating digging elements having a vertical axis of rotation
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/76—Graders, bulldozers, or the like with scraper plates or ploughshare-like elements; Levelling scarifying devices
    • E02F3/80—Component parts
    • E02F3/815—Blades; Levelling or scarifying tools

Abstract

The present invention relates to a stirring rod for ground excavation, which can reduce the resistance by minimizing the friction with the ground and finely crush the soil to efficiently perform the stirring operation. A stirring rod for excavating and agitating a ground by being coupled to a lower portion of an auger device installed so as to be able to ascend and descend, comprising: an excavating bit installed at a lower end to excavate a ground; A lower agitating part including a lower rod installed on the upper part of the excavating bit and a plurality of lower stirring vanes protruding from the outer circumferential surface of the lower rod; And an upper stirring part including an upper rod installed on an upper part of the lower stirring part and a plurality of upper stirring blades protruding from an outer circumferential surface of the upper rod, And the agitating tip is provided at an end portion of the upper agitating blade so as to be spirally arranged on the outer circumferential surface in the circumferential direction, and the agitating tip is formed to have a long length, And is disposed at a position where the distance from the center portion of the upper rod is sequentially shifted.

Description

Agitating rod for ground excavation "

The present invention relates to a stirring rod for ground excavation, and more particularly, to a stirring rod for improving a soft ground, which is divided into a lower stirring part and an upper stirring part to perform a single auger operation and a double auger operation, The stirrer is installed so as to be spirally arranged on the outer circumferential surface of the rod. The stirrer has a longer length of the stirring vane from the lower part to the upper part of the stirrer rod to improve the performance of excavation and stirring. .

In general, when constructing a structure directly on the ground, considering the geographical characteristics of the ground, if it is a soft ground, it is necessary to improve and reinforce the ground. In case of a construction requiring a dam or a waste landfill, To form a vertical wall.

Generally, a ground excavating machine for excavating the ground is used for the soft ground improvement work or the pile installation work, and the load is installed on the lower part of the auger device as one shaft or multiple shafts. And an excavation bit for excavating the ground is mounted at the end of each rod on the lowermost side.

Referring to FIG. 1 of the accompanying drawings, a conventional rod has a stirring blade 14 of a rod-shaped blade formed on an outer circumferential surface of a rod 12 in an upper and lower radial direction, according to the purpose of excavation work.

The rod-shaped agitating blades 14 are used for the improvement of the soft ground which hardens the underground layer with a strong strength by mixing the excavated soil and the excavated soil with the agitating action of the cement paste.

The stirring vanes 14 of the rod-shaped rollers applied to the construction for improving the soft ground are formed of rods having the same width and spaced apart at appropriate intervals above and below the rods. The agitating operation for agitating the excavated soil from the auger head is performed.

In the case of the rod-shaped agitating blades 14, when the soil layer of the soft ground to be excavated is clay having a low water content, the clay soil excavated by the auger head is excavated in a finely crushed state, The cement paste is evenly mixed with the excavated soil by agitating operation of agitating the excavated soil.

However, when the soft ground is composed of tidal flats with high water content, the basement layer of the tidal flats excavated by auger heads is excavated without being excavated in a finely crushed condition, It is disadvantageous in that it can not be pulverized to a small size only by an agitating operation which stirs with a stirring blade.

In this way, when the soil is excavated in the lump state, the cement paste can not be mixed and distributed evenly on the excavated soil. This phenomenon is caused by the fact that the cement paste, So that it is not possible to construct the ground improvement work as designed, and it may cause a problem that it leads to a poor work.

Korean Patent Laid-Open No. 10-2011-0024046, excavation stirring rod of a ground improvement device. Korean Patent Laid-Open No. 10-2005-0069954, stirring rod for ground excavation with folding agitating blades.

SUMMARY OF THE INVENTION The present invention has been made in order to solve the problems of the prior art described above, and it is an object of the present invention to provide an apparatus and a method for separating the agitation rod for improving a soft ground by a single agitating operation and a double agitating operation And the agitating blades protruding from the outer circumferential surface of the agitating rod are arranged so as to be arranged in a spiral manner and the agitating blades are formed to have a longer length from the lower part to the upper part of the agitating rod to improve the performance of the excavation and agitating operation The present invention provides a stirring rod for ground excavation.

In order to accomplish the above object, the present invention provides a stirring rod for ground excavation, which is connected to a lower portion of an auger device installed vertically on a vertically installed leader on the ground to excavate and stir the ground, A drilling bit installed in the drill bit; A lower agitating part including a lower rod installed on the upper part of the excavating bit and a plurality of lower stirring vanes protruding from the outer circumferential surface of the lower rod; And an upper stirring part having an upper rod installed on an upper part of the lower stirring part and a plurality of upper stirring blades protruding from an outer peripheral surface of the upper rod, And the upper stirring blades of the upper stirring portion are installed at regular intervals along the circumferential direction so as to be spirally arranged on the outer circumferential surface of the upper rod, wherein the upper stirring blades are disposed at regular intervals along the circumferential direction, The upper stirring blade is formed to have a longer length from the lower part to the upper part of the upper rod so that the stirring tip provided at the end of the upper stirring blade is connected to the lower part of the upper rod The distance from the central portion of the upper rod to the upper portion As shown in Fig.

The lower stirring blade includes: a plate-shaped lower stirring piece protruding from an outer circumferential surface of the lower rod; and a lower stirring rod formed to protrude from a center of the lower surface of the lower stirring shaft, So that the cross sectional area of the lower stirring blade is formed in a "T" shape.

The upper stirring blade includes: a plate-shaped upper stirring piece protruding from an outer circumferential surface of the upper rod; and a lower stirring rod formed to protrude from the center of the upper surface of the upper stirring rod and formed in a longitudinal direction of the upper stirring rod And an upper reinforcing protrusion formed to have a cross-sectional area of "T" as the upper stirring blade, wherein a stirring tip provided at an end of the upper stirring blade has a triangular shape It is preferable that an inclined surface is formed at the lower end.

And an annular flange having a diameter larger than the diameter of the upper rod and the lower rod is preferably formed at a contact point between the upper rod and the lower rod.

Preferably, the excavating bit comprises: a plurality of excavation cutters provided at a lower end thereof, and a drilling screw formed at an outer circumferential surface of the excavating bit.

According to the stirring rod for ground excavation according to the present invention, there is an effect of minimizing the friction with the ground to reduce the resistance, and the effect of agitating the soil to finely crush the soil.

1 is a view showing a conventional excavation rod,
Fig. 2 is a view showing the installation state of the stirring rod for ground excavation,
3 is a view showing an embodiment of a stirring rod for ground excavation according to the present invention,
Fig. 4 is an enlarged view of an "A" part of Fig. 3 showing the lower stirring blade,
Fig. 5 is a sectional view taken along line II in Fig. 4,
Fig. 6 is an enlarged view of the portion "B " in Fig. 3 showing the upper stirring blade,
7 is a sectional view taken along the line II-II in Fig. 6,
8 is an enlarged view showing a contact point between an upper rod and a lower rod of a stirring rod for excavating a ground according to the present invention,
9 is a view showing a rotation radius of a stirring tip provided at an end of an upper stirring blade provided in a stirring rod for ground excavation according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Prior to the description of the present invention, the following specific structure or functional description is merely illustrative for the purpose of describing an embodiment according to the concept of the present invention, and embodiments according to the concept of the present invention may be embodied in various forms , And should not be construed as limited to the embodiments described herein.

In addition, embodiments according to the concept of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail herein. However, it should be understood that the embodiments according to the concept of the present invention are not intended to limit the present invention to specific modes of operation, but include all modifications, equivalents and alternatives falling within the spirit and scope of the present invention.

As shown in FIG. 2, the stirring rod for ground excavation according to the present invention is installed at a lower portion of an auger device installed vertically up and down on a reader 10 fixed vertically on the ground, Can be installed in a structure in which a predetermined length is connected and assembled in an upper and lower single phase.

At this time, the reader 10 on which the auger device is installed is supported by the crawler traveling device 12 in the vertical direction. In addition, the auger device may be provided with a single auger 11a and a double auger 11b. The single auger 11a and the double auger 11b cause the stirring rod to move down while rotating the stirring rod, The excavation bit 100 mounted on the lowermost end of the excavation rod 100 induces underground insertion of the stirring rod while excavating the ground. Such an auger device is a conventional technique.

The stirring rod for ground excavation according to the present invention is divided into a lower stirring part 200 and an upper stirring part 300 as shown in FIG.

The lower stirrer 200 and the upper stirrer 300 are connected and assembled in a multi-phase manner to the lower rod 210 and the upper rod 310 having a predetermined length. The excavation bit 100 is installed to excavate the ground while the lower rod 210 is rotating.

At this time, a plurality of excavation cutters 102 are provided at the lower end of the excavation bit 100 to excavate the ground, and an excavation screw 104 is formed on the outer circumferential surface of the excavator bit 100, It can be made even easier.

The lower agitating unit 200 includes a lower rod 210 installed on the excavating bit 100 and a plurality of lower stirring vanes 220 protruding from the outer circumferential surface of the lower rod 210.

The lower stirring vane 220 of the lower stirring part 200 may be installed at regular intervals along the circumferential direction so as to be arranged on the outer circumferential surface of the lower rod 210 in a spiral manner.

The lower stirring blade 220 may include a plate-like lower stirring piece 222 protruding from the outer circumferential surface of the lower rod 210 and a lower stirring blade 222 protruding from the center of one surface of the lower stirring blade 222, And a lower reinforcing protrusion 224 formed in the longitudinal direction of the lower stirring piece 222 so as to be away from the central portion of the lower rod 210 so that the sectional area of the lower stirring vane 220 is formed in a "T & .

At this time, the lower reinforcing protrusion 224 also functions to reinforce the plate-shaped lower stirring piece 222, so that when the lower stirring piece 222 is pulverized and stirred, The load is supported by the lower reinforcing protrusion 224 to prevent the lower stirring member 222 from being damaged.

The upper stirring part 300 includes an upper rod 310 installed at an upper part of a lower stirring part 200 and a plurality of upper stirring blades 320 protruding from an outer circumferential surface of the upper rod 310.

At this time, the upper stirring vane 320 of the upper stirring part 300 is preferably installed at regular intervals along the circumferential direction so as to be spirally arranged on the outer peripheral surface of the upper rod 310.

Particularly, an end of the upper stirring vane 320 is provided with a stirring tip 330 so as to protrude downward. The stirring tip 330 protrudes to the lower portion of the upper stirring blade 320 so that when the excavating bit 100 is excavated in a lump state, the lump of soil can be easily pulverized and stirred.

The upper stirring rod 320 is formed to have a long length from the lower portion of the upper rod 310 to the upper rod 310 so that the stirring tip 330 installed at the end of the upper stirring blade 320 can rotate, It is preferable that the upper rod 310 is installed at a position where the distance from the central portion of the upper rod 310 gradually increases toward the upper portion.

The upper stirring blade 320 may include a plate-shaped upper stirring piece 322 protruding from the outer circumferential surface of the upper rod 310 and a lower stirring blade 322 protruding from the center of one surface of the upper stirring blade 322, And an upper reinforcing protrusion 324 formed in the longitudinal direction of the upper agitating piece 322 so as to be distant from the center of the rod 310 so that the cross-sectional area of the upper agitating blade 320 is formed in a "T" shape.

At this time, the upper reinforcing protrusion 324 also functions to reinforce the plate-shaped lower stirring piece 222, and when the lower stirring piece 222 is crushed and stirred, the lower stirring piece 222 is applied It is possible to prevent a breakage of the lower stirring piece 222 by supporting a losing load on the upper reinforcing protrusion 324.

The stirring tip 330 provided at the end of the upper stirring vane 320 may be formed with a sloped surface portion 332 at the lower end so that the portion protruding downward from the end of the upper stirring vane 320 has a triangular shape desirable.

It is preferable that annular flanges 212 and 312 larger than the diameter of the upper rod 310 and the lower rod 210 are formed at a contact point between the upper rod 310 and the lower rod 210.

The stirring rod for ground excavation according to the present invention is constructed such that the lower stirring vane 220 and the upper stirring vane 320 provided in the lower stirring portion 200 and the upper stirring portion 300 are arranged in a spiral arrangement So that the soil lump excavated from the excavation bit 100 is crushed and stirred at the same time. That is, the stirring wings are arranged so as to be arranged in a spiral manner to minimize the resistance to the ground when the rod is rotated, thereby facilitating the stirring operation.

Particularly, the upper stirring blade 320 formed on the upper stirring part 300 is formed to have a longer length from the lower part to the upper part of the upper rod 310, and the stirring tip 330 is formed on the end of the upper stirring blade 320, This is a core structure of the present invention and an important means for increasing the efficiency of stirring.

The upper stirring rod 320 is installed such that the length of the upper stirring rod 320 becomes longer from the lower portion of the upper rod 310 to the upper portion of the upper rod 310. The stirrer tip 330 is provided at the end of the upper stirring blade 320, The upper stirring vane 320 is installed so as to be spirally arranged around the upper rod 310. As the length of the upper stirring vane 320 becomes longer, the position of the stirring tip 330 installed at the end of the upper stirring vane 320 is arranged at a position where the radius gradually increases around the upper rod 310 do.

9, when the upper rod 310 rotates, the stirring tip 330 installed at the end of the upper stirring vane 320 forms a plurality of concentric circles having a sequentially increasing radius, .

Accordingly, the empty space between the upper stirring vane 320 and the stirring tip 330 is reduced, and the area where agitation is possible is increased, so that the fear that the loose soil is trapped between the empty spaces is reduced, the loose soil is finely crushed, This happens smoothly.

Also, since the area without the stirring tip is still stirred by the stirring frame, it is efficient.

According to the present invention, the lower stirring blade 220 of the lower stirring part 200 and the upper stirring blade 320 of the upper stirring part 300 are respectively arranged so as to be spirally arranged, The stirrer tip 330 formed at the end of the upper stirring vane 320 gradually increases the installation distance from the upper rod 310, thereby repeating the pulverizing and stirring operation.

Although the present invention has been fully described in connection with the preferred embodiments thereof with reference to the accompanying drawings, it is to be understood that the present invention is not limited thereto. It is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

100 - Excavation bit 200 - Lower agitation part
210 - Lower rod 220 - Lower stirring blade
300 - Upside stir portion 310 - Upper rod
320 - upper stirring blade 330 - stirring tip

Claims (5)

1. A stirring rod for ground excavation, which is coupled to a lower portion of an auger device installed vertically on a ground and installed vertically so as to excavate and stir the ground,
A digging bit 100 installed at the bottom to excavate the ground;
A lower agitating part 200 composed of a lower rod 210 installed on the excavation bit 100 and a plurality of lower stirring vanes 220 protruding from the outer surface of the lower rod 210; And
An upper stirring part 300 including an upper rod 310 installed on the lower stirring part 200 and a plurality of upper stirring blades 320 protruding from the outer circumferential surface of the upper rod 310, ,
The lower stirring vane 220 of the lower stirring part 200 is installed at regular intervals along the circumferential direction so as to be spirally arranged on the outer peripheral surface of the lower rod 210,
The upper stirring vane 320 of the upper stirring part 300 is installed at regular intervals along the circumferential direction so as to be spirally arranged on the outer peripheral surface of the upper rod 310,
And an agitating tip 330 installed to protrude downward from an end of the upper stirring vane 320,
The upper stirring vane 320 includes:
The upper end of the upper rod 310 is connected to the lower end of the upper rod 310 and the lower end of the upper rod 310 is connected to the lower end of the upper rod 310, And a distance from the central portion of the rod (310) is set at a position gradually apart from the central portion of the rod (310).
The method according to claim 1,
The lower stirring vane 220 comprises:
Shaped lower stirring piece 222 protruding from the outer circumferential surface of the lower rod 210 so as to protrude from the center of one surface of the lower stirring piece 222 and extend away from the center of the lower rod 210 And a lower reinforcing protrusion (224) formed in the longitudinal direction of the lower stirring piece (222) so that the sectional area of the lower stirring blade (220) is formed in a "T" shape.
The method according to claim 1,
The upper stirring vane 320 includes:
Shaped upper stirring piece 322 protruding from the outer circumferential surface of the upper rod 310 and a second upper stirring rod 322 protruding from the center of the upper surface of the upper stirring rod 322, And an upper reinforcing protrusion 324 formed in the longitudinal direction of the upper stirring piece 322 so that the cross-sectional area of the upper stirring blade 320 is formed in a "T" shape,
The stirring tip 330 installed at the end portion of the upper stirring vane 320 may include:
Wherein an inclined surface portion (332) is formed at a lower end of the upper stirring vane (320) so that a portion protruding downward from the end of the upper stirring vane (320) forms a triangular shape.
The method according to claim 1,
Wherein an annular flange (212, 312) larger than the diameter of the upper rod (310) and the lower rod (210) is formed at a contact point between the upper rod (310) and the lower rod (210) Stirring rod.
The method according to claim 1,
The excavation bit (100) comprises:
Wherein a plurality of excavation cutters (102) are installed at the lower end and a digging screw (104) is formed on an outer circumferential surface of the excavating bit (100).
KR1020150000556A 2015-01-05 2015-01-05 Agitating rod for ground excavation KR20160084088A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190106116A (en) * 2018-03-07 2019-09-18 백규호 Construction apparatus of Cylindrical type pile and Construction apparatus of Taper type pile and Construction method of Taper type pile
KR102098175B1 (en) 2019-05-29 2020-04-07 정경한 Excavation Apparatus for Ground Improvemnt
KR20200095120A (en) * 2019-01-31 2020-08-10 백예지 Construction apparatus of stepped pile and Construction method of stepped pile
KR102497143B1 (en) 2022-03-24 2023-02-06 이동진 Extendable perforator rod and a using method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050069954A (en) 2005-06-01 2005-07-05 주식회사 청석개발 A agitating road for excavating ground installed fold type agitating wings
KR20110024046A (en) 2009-09-01 2011-03-09 주식회사 동아지질 Drilling and mixing rod of ground reforming device

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050069954A (en) 2005-06-01 2005-07-05 주식회사 청석개발 A agitating road for excavating ground installed fold type agitating wings
KR20110024046A (en) 2009-09-01 2011-03-09 주식회사 동아지질 Drilling and mixing rod of ground reforming device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190106116A (en) * 2018-03-07 2019-09-18 백규호 Construction apparatus of Cylindrical type pile and Construction apparatus of Taper type pile and Construction method of Taper type pile
KR20200095120A (en) * 2019-01-31 2020-08-10 백예지 Construction apparatus of stepped pile and Construction method of stepped pile
KR102098175B1 (en) 2019-05-29 2020-04-07 정경한 Excavation Apparatus for Ground Improvemnt
KR102497143B1 (en) 2022-03-24 2023-02-06 이동진 Extendable perforator rod and a using method thereof

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