WO1996033313A1

WO1996033313A1 - Drain forming equipment for reinforcing soft ground, and method and structure for arranging drains

Info

Publication number: WO1996033313A1
Application number: PCT/KR1996/000054
Authority: WO
Inventors: Jong Chun Kim
Original assignee: Jong Chun Kim
Priority date: 1995-04-15
Filing date: 1996-04-15
Publication date: 1996-10-24
Also published as: BG101965A; SV1996000024A; TW303408B; PL323155A1; EP0822295A4; TNSN96060A1; NO974751D0; PE29297A1; NO974751L; UY24205A1; EA199700319A1; MX9707903A; AU5290196A; AR001630A1; OA10524A; TR199701175T1; IL117890A0; EP0822295A1; BR9608189A; AP9701120A0

Abstract

The present invention relates to a structure and method for arranging drains to reinforce soft ground and a device for use in forming the drains, and provides a drain pack comprising a net-like portion and a reinforcing portion and a square drain pack. In addition, the present invention discloses a new drain structure and a method for uniformly arranging an effective draining radius, and furthermore provides a polygonal guide casing for placing the pack in the ground without twisting and a placing device for placing a drain in deep soft ground while keeping verticality without the guide casing being deformed. Thus, the present invention provides effects of maximizing the drain effect and promoting the subsidence of ground.

Description

Description Drain forming equipment for soft ground reinforcement, drain arrangement method and structure

[Technical field]

The present invention relates to a technique for strengthening soft ground, in particular, a sand column forming pack for forming a drain, a guide casing of a pack used when pouring the pack into the ground, and a pack. The present invention relates to a driving device for driving an inner casing, a drain structure, and an arrangement method.

[Background technology]

In general, when strengthening soft ground, vertical drainage methods such as flexible sand drains and / or paper drains are often used. In the conventional vertical drainage method, a cylindrical guide case is cast in the ground, the sand pack is mounted in the guide casing, and then the guide case is removed. I came. Figure 1 is a perspective view of a flexible sand pack and guide casing used in the conventional vertical drainage method. As shown, in the conventional vertical drainage method, a cylindrical guide casing 10 is buried in the ground, and then a sand column shaped pack 20 is put into the guide casing 10. The pack 20 is formed by knitting a lattice shape with a plain weave, and then weaving both ends by laminating the two, or forming reinforcing portions 31 and 32 along the longitudinal direction by heat fusion. Guide casing inserted into 10 The pack 20 is filled with sand, and the sand casing 10 is pulled out with the sand filled to form a drain.

However, such a conventional sand column forming pack has a problem that the manufacturing process is complicated and the cost is high. In addition, the packing may be torn or cut, causing the vertical and vertical sides to be pushed together. Further, the conventional packing has a problem that the drainage effect is inferior because the reinforcing portion 31 or 32 is folded and the fine-grained soil cannot pass through to form a film. In addition, the use of cylindrical packing limits the cross-sectional diameter of the flexible drain to within 25 cm, and has a disadvantage that the drainage contact surface is small and the drainage effect is poor.o

The conventional guide casing is composed only of a cylindrical shape, and loosens when inserting the pack. In addition, when forming a paper drain, there is a problem that the paper drain board has a thin plate-like structure, so that more space can be created and excessive ground behavior occurs when driving or removing the casing.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art and to provide an inexpensive sand column forming pack having a simple manufacturing process.

It is another object of the present invention to provide a sand column forming pack provided with a reinforcing portion in which a conductive plate is provided.

Still another object of the present invention is to provide a polygonal sand column forming pack.

Still another object of the present invention is to provide a pack in which a flexible sand drain and a base pad drain can be provided at the same time. Still another object of the present invention is to provide a pack guide member in which packs do not compete with each other.

Still another object of the present invention is to provide a drain including a sand and a drainage promoting reinforcement embedded in the sand.

Still another object of the present invention is to provide a reinforcing material charging machine for charging the reinforcing material.

Still another object of the present invention is to provide a guide casing which prevents a radius when buried underground.

Yet another object of the present invention is to provide a casing having a reinforcing material therein.

Still another object of the present invention is to provide a drain structure and an arrangement method having a high drainage effect.

Still another object of the present invention is to provide a guide casing setting device for forming a large number of square drains.

[Disclosure of the Invention]

In order to achieve the above-mentioned object, a feature of the present invention resides in a pack used for strengthening soft ground, which is manufactured by projecting through a mold.

Another feature of the present invention resides in a drain for soft ground reinforcement, the drain including sand buried underground and at least one or more drainage promoting reinforcing material buried in the sand.

Still another feature of the present invention is that a space for accommodating the drainage promoting reinforcing material is provided inside, and through holes of a predetermined size are formed on upper and lower surfaces. And a reinforcing material input device that is disposed outside the upper through hole of the casing and has a size that the through hole cannot pass through, and a binding member to which a negative end of the reinforcing material is bound. Confuse.

Still another feature of the present invention is that in a pack guide casing for guiding a pack used for strengthening soft ground, a first member comprising a hollow polygonal cylindrical body having a predetermined length. And a guide casing for a pack including a second member which is coupled to a lower end portion of the above-mentioned pack, has the same angle as the first member, is coupled to a hollow interior of the first member, and is vertically movable. It is in.

Still another feature of the present invention is that in a guide casing for forming a drain used for strengthening soft ground, a body having a predetermined length and having a hollow cylindrical body; The guide casing includes at least one or more reinforcing members inside the part.

Still another feature of the present invention lies in a drain structure for soft ground strengthening, wherein the structure of the drain is square.

Still another feature of the present invention is that in a method of arranging drains for strengthening soft ground, four rectangular drains adjacent to each other have a positive imaginary line connecting a center point of each drain. The drain arrangement method is characterized in that a rectangular shape is maintained, and the longitudinal direction of each drain is arranged perpendicular to the longitudinal direction of the adjacent drain and the center point. Still another feature of the present invention is a driving device for forming a drain, comprising: a guide post vertically erected; and a pile driving device coupled to the guide post. A stakeout block provided at the lower end of the stakeout device, a square mounting plate fixed to the stakeout block, and fixed to the mounting plate, and arranged in the arrangement method described above. And a reinforcing connecting plate for connecting the guide casings to each other.

[Brief description of drawings]

FIG. 1 is a perspective view of a conventional flexible pack and a guide casing for explaining a vertical drainage method.

2A to 2C are views for explaining a sand column forming pack according to one embodiment of the present invention.

3A to 3F are plan views of a pack according to another embodiment of the present invention.

FIG. 4 is a perspective view of the drain according to the embodiment of the present invention. FIG. 5 is a perspective view of a weight used to add a reinforcing material for promoting drainage when forming the drain of FIG.

FIG. 6 is a perspective view of a drainage promoting reinforcing material charging machine according to an embodiment of the present invention.

FIG. 7 is a perspective view of a guide casing according to one embodiment of the present invention.

FIG. 8 is a plan view of a guide casing according to another embodiment of the present invention.

9A to 9D are plan views of the inner casing of still another embodiment of the present invention.

FIG. 10 is a plan view in which a number of pack guide casings for implementing the drain arrangement method according to the present invention are integrally formed. It is.

FIG. 11 is a conceptual diagram for explaining the drain arrangement method according to the present invention.

FIG. 12A is a front view of the casting device according to the present invention.

FIG. 12B is a cross-sectional view taken along the line I-I of FIG. 12A. FIG. 13A is a perspective view of a conventional flexible drain.

FIG. 13B is a perspective view of the structure of the drain according to the present invention. BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

2A to 2C are views for explaining a sand column forming pack according to one embodiment of the present invention. The pack of the present invention is manufactured by injection molding using a mold. FIG. 2A shows that a material 50 for a sand column forming packing provided with a reinforcing portion 51 is injection-molded at regular intervals. If the packing material 50 shown in FIG. 2A is cut and joined so as to include at least one or more reinforcing portions 51, one sand column forming package 6 is obtained as shown in FIG. 2B. 0 is manufactured. At this time, the form of installation of joints and reinforcements can be varied in various ways.

FIG. 2C is a cross-sectional view of a reinforcing portion of a sand column forming pack according to another embodiment of the present invention. The reinforcing portion 51 of this embodiment has a conductive plate 53 inside. The conductive plates 53 are used to connect electrodes when the electroosmosis method ⁵ is applied. One of the conductive plates 53 can be installed in each of the reinforcing portions 51 of the pack 60 in FIG. 2B. A plurality of conductive plates can be separately inserted into one reinforcing portion.

3A to 3F are plan views of a pack according to still another embodiment of the present invention. Even without looking at the perspective view, it can be seen that the pack of the present invention is elongated in the same shape in the longitudinal direction.

FIGS. 3A to 3C show a rectangular pack, and FIGS. 3D to 3F show a cylindrical pack. The pack of the present embodiment is composed of a net-like portion 71 and a large number of reinforcing portions 72. A nonwoven fabric can be attached to the reinforcing portion 72. The reinforcing portion with the nonwoven fabric is formed to have a drainage bent portion. Therefore, the knock according to the present embodiment has an advantage of forming a flexible sand drain and a paper drain together.

In addition, by forming the packing in a square shape, the drainage contact surface can be increased by 30% or more while consuming the same amount of sand than the cylindrical shape. In other words, it can be seen that the rectangular pack has more than 30% more edges in the same area than the cylindrical pack. Therefore, the same amount of sand produces a drainage effect of 30% or more.

In addition, conventional flexible packs are produced by measuring the length of each piece required for continuous production of articles of the same shape and hue without any sign, and then cutting them.

Since the drains constructed in this way have the same shape and hue as the exposed part, it is necessary to check construction records and other equipment to check whether the underground drains have been applied to the target depth. This causes problems to be confirmed one by one.

Therefore, the pack of the present invention performs a sign indicating the length. In other words, when producing packs, various colors and numbers are used. It is desirable that the length can be determined just by looking at this by attaching or attaching a reinforcing portion in a form that can be shown or divided. Therefore, the suitability of the construction can be determined by identifying the drain sign that was exposed after construction.

As a result, non-work is prevented, construction is easy, and construction management can be performed efficiently.

FIG. 4 is a perspective view of the drain according to the embodiment of the present invention. That is, in the drain of the present invention, at least one or more other drainage promoting reinforcing members 82 are provided inside the sand drain 81. Drainboard or water-absorbing fiber material can be used as the drainage promoting reinforcement 82. Therefore, the drainage effect is greatly enhanced compared to the existing paper drain and sand drain, and a certain function is maintained for a long time.

Fig. 5 is a perspective view of the weight used to fill the drainage reinforcing material when forming the drain of Fig. 4. These weights are made of a strong material such as concrete. Each weight has an appropriate number of connecting rings 84 according to the number of drainage promotion reinforcements in the drain shown in Fig.4. The lower end of the drainage promoting reinforcement is joined to the connecting ring 84. The shape of the weight can be variously changed according to the form of the guide casing. The protruding portion 86 in FIG. 5A is fastened to a guide groove inside a guide casing (not shown) so that a reinforcing material can be introduced without looseness.

FIG. 6 is a perspective view of a drainage promoting reinforcing material charging machine according to an embodiment of the present invention. This charging machine has a casing 87. The upper and lower surfaces of this casing 8 7 respectively Through holes 88, 89 are formed, and a gate 90 that can open and close the inside is formed. Inside the casing 87, a reinforcing material 82 for promoting drainage is accommodated. One end of the reinforcing member 82 is connected to the binding member 91. The bundling member 91 is disposed outside the upper through hole 88 of the casing 87 and has a size that cannot pass through the through hole. After fixing to sand inlet, sand is filled to form drain. Of course, it is not necessary that the bundling member 91 has the configuration as shown, and any member can be used as long as the end of the reinforcing member 82 can be connected. The other end of the reinforcing member 82 is connected to a weight 92 as shown in FIG. 5 so that a strong reinforcing member 82 such as a drain board weighs without a separate device. naturally exit Do La drain through the lower through-hole 8 9 only - Ru earthenware pots are rapidly placed in the interior of the down-forming casing ₀

The casing of the present invention is cast into the soft ground so as to have a depth, and has a first member 95 made of a polygonal cylinder. In addition, a second member 96 is provided at the lower end of the sand column forming pack P and guides the pack P quickly inside the first member. The second member 96 has the same angle as the first member 95.

Therefore, when the second member 96 is inserted into the first member 95, deformation such as loosening or twisting of the pack P can be prevented.

FIG. 8 is a plan view of a guide casing according to still another embodiment of the present invention. As shown, the guide casing 100 of the present embodiment has at least one or more reinforcing members 101 formed therein. The reinforcing member 101 is for bending the paper drain board 102 to guide it into the casing 100 and to prevent bending of the casing. It is more desirable that the paper drain board 102 be manufactured so that the portion indicated by the dotted line in the drawing can be easily bent. In this way, the paper drain board 102 is bent and set by the reinforcing member 101, so that it can be installed in a straight line. The effect is greatly increased, and the effect of reducing the ground behavior during driving is achieved.

9A to 9D are plan views of a guide casing according to still another embodiment of the present invention. As shown in the figure, the guide casing 110 of the present embodiment has at least one or more protrusions 111 on the outside. The protruding portion 111 is for preventing the guide casing 110 from being bent when the guide casing 110 is driven into the ground. In particular, FIG. 9A is a plan view of a guide casing 110 made of H-section steel. Here, the intermediate member of the H-section steel plays the role of the reinforcing member 101.

Fig. 10 is a plan view of a casing in a pack plan configured so that many pack guide casings can be buried underground at a depth equal to or greater than a certain depth. As can be seen from the figure, many pack guide casings 160 are interconnected by the first connection □ 161. Therefore, when many guide casings are simultaneously driven into the ground at a certain depth or more, Prevents the radius phenomenon and maintains verticality. The second connection port is indicated by a dotted line in the drawing, and is effective for preventing the casing from being bent.

FIG. 11 is a conceptual diagram for explaining the drain arrangement method according to the present invention. As shown, in the drain arrangement method according to the present invention, four rectangular drains adjacent to each other maintain a square imaginary line connecting the center points of the drains, and the longitudinal directions of the corner drains are adjacent. It has a structure that is arranged perpendicular to each other in the longitudinal direction and the center point of the drain. Therefore, the effective drainage radius is balanced, and the denser drainage interval promotes compaction settlement.

FIG. 12A is a front view of the casting device according to the present invention, and FIG. 12B is a cross-sectional view taken along the line I-I of FIG. 12A. As can be seen, the casting device of the present invention includes a guide column 170. The guide column 170 is provided vertically. The guide column 170 is connected to the pile driving device 170.

At the lower end of the pile driving device 17 2, a pile driving block 17 3 is provided. A substantially square mounting plate 1 7 4 is fixed to the pile driving block 1 7 3. A large number of guide casings 175 A to 175 D are fixed to the mounting plate 174. These guide casings 1755A to 1775D are connected to each other by a reinforcing connecting plate 1776 to prevent deformation of the casing, and to maintain verticality so that a deep drain can be constructed. On the other hand, a guide 177 is connected to the guide column 170. The guide 177 forms a groove through which the guide casing and the reinforcing connecting plate 176 can penetrate, and plays a role of guiding the direction when the casing is driven. . Therefore, a device for supplying a sand drain board to the upper end of the mounting plate 174 of the casting device of the present invention is selectively provided and used according to the application. FIG. 12B is a cross-sectional view taken along the line I-I of FIG. 12A. As can be seen from the figure, the casting apparatus of the present invention provides a casting apparatus capable of simultaneously placing a large number of drains by the method of arranging the drains shown in FIG.

FIG. 13A is a perspective view of a conventional flexible drain. Conventional flexible drains remain cylindrical and have a diameter of 5 c π! Limited to a range of ~ 25 cm. Limiting the size of the diameter means that if the diameter is less than 5 cm, normal drainage will not be performed, and if it exceeds 25 cm, the drain will lose flexibility when a load is applied. Was.

FIG. 13B is a perspective view of the structure of the drain according to the present invention. The drain structure of the present invention is characterized in that it has a square shape. The length of either side of the rectangle should be in the range of 5 cm to 25 cm. As a result, the limitation on the cross section of the flexible drain can be overcome. Accordingly, drainage is formed smoothly and the drainage is flexible vertically and horizontally, and the drainage contact surface is widened while consuming a small amount of sand compared to the conventional case.

In other words, assuming that the heights are the same when viewed from the reference shown in the drawing, the area of the drain in FIG. 13A and the area of the drain in FIG. 13B are almost the same. It can be seen that the drain of Fig. 13B is much longer at the edge. [Industrial applicability]

As described above, the present invention provides a new form of soft ground strengthening technology that fully compensates for the disadvantages of the conventional technology.

Claims

[Claims]

1. A pack used to strengthen soft ground, which is manufactured by injection through a mold.

2. The pack according to claim 1, wherein the pack comprises a mesh portion and at least one or more reinforcing portions.

3. The pack according to claim 2, wherein a nonwoven fabric is attached to the reinforcing portion.

4. The pack according to claim 2, wherein a conductive plate is further provided inside the reinforcing portion.

5. The pack according to any one of claims 1 to 4, wherein the pack is rectangular.

6. The knock according to any one of claims 1 to 4, wherein the pack is provided with a sign indicating its length.

7. In the soft ground reinforcement drain,

Sand buried underground,

A drain comprising at least one drainage promoting reinforcement buried in the sand.

8. The drain of claim 7, further comprising a pack containing the sand.

9. The drain according to claim 7, wherein the reinforcing material is a drain board.

10. The drain according to claim 2, wherein the reinforcing material is a fiber material for water adsorption.

11. A casing in which a space capable of accommodating the drainage promoting reinforcing material according to any one of claims 7 to 10 is provided, and a through hole having a predetermined size is formed on upper and lower surfaces,

A reinforcement feeding machine, comprising a bundling member disposed outside the upper through-hole of the casing and having one end of the reinforcement bound thereto.

12. The reinforcing material charging machine according to claim 11, wherein the casing further includes a gate that can be opened and closed to allow the reinforcing material to enter and exit.

13. The reinforcement input machine according to claim 11, further comprising a weight attached to the other end of the reinforcement.

14. The reinforcing member casting device according to claim 13, wherein the weight has a reinforcing member bundling ring that matches the shape of the reinforcing member.

1 5. In the case of pack guidance to guide the pack used to strengthen soft ground,

A first member formed of a hollow polygonal cylinder having a predetermined length, coupled to a lower end of the pack, having the same angle as the first member, and having a hollow interior of the first member; A guide casing for a pack that includes a second member that is connected to the upper part and has a vertical flow.

1 6. In the guide casing for forming the drain used to strengthen the soft ground,

A guide casing including a body having a predetermined length and formed of a hollow cylindrical body, and at least one or more reinforcing members inside the body.

17. The guide casing of claim 16, wherein the body further comprises at least one or more protrusions protruding outward. G

1 8. In the drain for soft ground reinforcement,

A drain structure, wherein the structure of the drain is quadrangular.

19. The drain structure according to claim 18, wherein the lengths of the opposite sides of the rectangle are in a range of 5 cm to 25 cm.

20. In the method of arranging drains to strengthen soft ground,

Four rectangular drains adjacent to each other connect the center point of each drain, and the imaginary line connecting the drains keeps a square, and the longitudinal direction of each drain is perpendicular to the longitudinal direction and the center point of the adjacent drain. A method for arranging drains, wherein the drains are arranged in a matrix.

2 1. In a driving device for forming a drain, a vertically standing guide column,

A pile driving device coupled to the guide column,

21. The arrangement method according to claim 20, wherein a pile driving block provided at a lower end of the pile driving device, a square mounting plate fixed to the pile driving block, and fixed to the mounting plate. A number of guide casings arranged,

A driving device including a reinforcing connection plate that connects the guide casings to each other.

22. The setting device according to claim 21, further comprising a guide fixed to the guide post and provided with a groove through which the guide casing and the reinforcing connection plate can pass.