KR101863835B1 - Cell Structure for Reinforcing Ground - Google Patents

Abstract

According to the present invention, there is provided a plasma display panel comprising: a geocell formed with slits grouped in a cell wall constituting a single or a plurality of rows of cells in the longitudinal direction of strips; The present invention provides a cell structure for ground reinforcement, which is sandwiched between slits grouped so as to pass through a geocell, and which is accommodated in cells in a manner that the central portion of the cells crosses the inner regions of the cells while being swept.

Description

{Cell Structure for Reinforcing Ground}

Embodiments of the present invention relate primarily to structures used to reinforce soft ground.

Geocell is used to reinforce the soft ground. 1 is a perspective view showing a general geocell. 1 shows a folded state and an unfolded state of a general geocell, respectively. As shown in FIG. 1, the geocell 10 is formed to have a predetermined width by a synthetic resin such as polyethylene (polyethylene) to have a predetermined flexibility, and has a plurality of strips 12 ). The strips 12 are arranged so as to be adjacent to each other and adjacent to each other, and the strip faces (wall faces) face each other. The neighboring strips 12 are bonded to each other by ultrasonic welding at regular intervals along the longitudinal direction of the strips 12 (see the X-axis direction), and the geocell 10 is bonded to the strips 12 And a plurality of joints 14 which are mutual joining parts of the joints.

Such a geocell 10 is formed by stacking the strips 12 in a direction perpendicular to the strip surface (see the Y-axis direction) in a state where the strips 12 are overlapped with each other (see the geocell drawing shown on the upper side of FIG. 1) The strips 12 are bent in the same shape as the sine curve, and cells C 1 are formed between the strips 12. Joints 14 in each row that are in the longitudinal direction of the strips 12 are staggered with the joints 14 in the adjacent row. Accordingly, the adjacent cells C1 are arranged in a staggered manner, and the geocell 10 in a folded state has a honeycomb structure (see FIG. 1) See drawings).

The geocell 10 is installed in a state spread on the ground of the soft ground, and the cells C1 are filled with filler. The geocell 10 thus installed is constructed such that the cell wall of each cell C1 constituted by the strips 12 surrounds the periphery of the filler filled in each cell C1, And thus it maintains the self-supporting property). As a result, the strength and the supporting force of the soft ground can be increased.

However, since the filling material filled in each cell C1 can be confined only around the cell wall by the cell wall, the geocell 10 constructed as described above can not reliably confine the filling material at the lower side. Therefore, there is a problem that the reinforcing effect of the soft ground can not be significantly increased.

In addition, when the filling material is lost through the open lower side of the cell C1 due to consolidation or the like, or sinking due to the filling material leakage, or when the geocell 10 itself is subjected to an action load from the upper side There is a problem that the effect of reinforcing the soft ground is deteriorated.

Korean Utility Model Registration No. 20-0329669 (Oct. 10, 2003) Korean Patent Publication No. 10-2011-0079700 (July 7, 2011)

(Problem to be solved)

It is an object of the present invention to provide a ground structure reinforcing cell structure that is more advantageous in terms of enhancing the ground reinforcement effect.

The problems to be solved are not limited thereto, and other matters not mentioned can be clearly understood by those skilled in the art from the following description.

[MEANS FOR SOLVING PROBLEMS]

According to an embodiment of the present invention, there are provided joints formed of flexible strips arranged side by side and formed by joining the strips adjacent to each other in the longitudinal direction at intervals, and the strips are spaced apart from each other, A plurality of slits formed in a cell wall of at least one of the plurality of columns in a longitudinal direction of the strips, the plurality of slits being grouped in a plurality of rows, each cell having a cell wall made of strips; And a flexible sheet having insertion sheet portions sandwiched between the slits formed in the group so as to pass through the geocell and sandwiched between the slits and barrier sheet portions both of which are accommodated in the cells and connected to the insertion sheet portions, , The blocking sheet portions may be provided with a center portion accommodated in an inner region of the cells so as to confine the filler filled in the cells from the lower side. At this time, the sheet sandwiched between the slits constituting the group is substantially flat when the strips are spaced apart from each other for installation of the geocell. When the filling material is then charged into the cells, The positioned portion may be deformed downward by the load of the filling material filled in the cells to have the blocking sheet portion. In consideration of this, it is preferable that the sheet is formed to have a length longer than the maximum size of the geocell in a direction perpendicular to the strip surface.

The slits constituting the group may be provided in plurality for each cell wall of the cells forming the row and spaced apart along the height direction of the cell walls, and the sheet may be sandwiched by the slits disposed at any one height .

At least one of both ends of the sheet is sandwiched between slits of different heights at different heights of the strips disposed at the outermost side and is fitted to a slit having a different height so as to be bonded to the outermost strip .

According to an embodiment of the present invention, there are provided joints formed of flexible strips arranged side by side and formed by joining the strips adjacent to each other in the longitudinal direction at intervals, and the strips are spaced apart from each other, A plurality of slits formed in a cell wall of at least one of the plurality of columns in a longitudinal direction of the strips, the plurality of slits being grouped in a plurality of rows, each cell having a cell wall made of strips; And a flexible sheet having insertion sheet portions sandwiched between the slits formed in the group so as to pass through the geocell and sandwiched between the slits and barrier sheet portions both of which are accommodated in the cells and connected to the insertion sheet portions, , Each of the slits constituting the group is constituted by a plurality of unit slits arranged at intervals along the longitudinal direction of the strips, and the sheet is sandwiched by unit slits, respectively.

According to an embodiment of the present invention, there are joints formed by flexible strips arranged so as to be parallel to each other and formed by joining the strips adjacent to each other at a predetermined interval so as to be spaced apart from each other along the longitudinal direction, And slits formed in the cell walls of at least one of the plurality of rows of the cells are arranged in the longitudinal direction of the strips, A formed geocell; And a flexible sheet having insertion sheet portions sandwiched between the slits formed in the group so as to pass through the geocell and sandwiched between the slits and barrier sheet portions both of which are accommodated in the cells and connected to the insertion sheet portions, And at least one of both ends of the sheet is coupled to a binding block for preventing the sheet from being separated from the slit of the strip disposed at the outermost position.

Means for solving the problems will be more specifically and clarified through the embodiments, drawings, and the like described below. In addition, various solution means other than the above-mentioned solution means may be further proposed.

1 is a perspective view showing a general geocell.
2 and 4 show an exploded perspective view, a perspective view, and a plan view of a cell structure for a ground reinforcement according to a first embodiment of the present invention, FIGS. 2 and 4 show a state in which a geocell is unfolded, This shows the folded state.
5 is an enlarged view showing a part of the geocell shown in Fig.
6 is a cross-sectional view illustrating the state of use of the cell structure for ground reinforcement according to the first embodiment of the present invention.
FIG. 7 is a perspective view showing a main part of a ground reinforcement cell structure according to a second embodiment of the present invention. FIG.
FIG. 8 is a cross-sectional view showing a main part of a ground reinforcement cell structure according to a third embodiment of the present invention.
FIG. 9 and FIG. 10 are perspective views illustrating a main portion of a ground reinforcement cell structure according to a fourth embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. For a better understanding of the invention, it is to be understood that the size of elements and the thickness of lines may be exaggerated for clarity of understanding. Further, the terms used to describe the embodiments of the present invention are mainly defined in consideration of the functions of the present invention, and thus may be changed depending on the intentions and customs of the user and the operator. Therefore, the terminology should be interpreted based on the contents of the present specification throughout.

An embodiment of the present invention is mainly a cell structure reinforcing soft ground.

The construction of the cell structure according to the first embodiment of the present invention is shown in Figs. 2 to 6. Fig. Referring to FIGS. 2, 4 and 6, the cell structure according to the first embodiment of the present invention includes a geocell 100 for reinforcing the ground, a flexible sheet 100 for improving the ground reinforcement action of the geocell 100, and a flexible sheet (200).

The geocell 100 is configured to be folded and unfolded by a plurality of flexible strips 120. The material of the strips 120 is synthetic resin. Depending on the operating conditions and the like, the strips 120 may be made of other materials capable of providing flexibility such as rubber or metal. The material of the strips 120 is preferably a polymer. More preferably, the material of the strips 120 is polyethylene (PE). At this time, the polyethylene may be high density polyethylene (HDPE) or medium density polyethylene (MDPE).

The strips 120 are formed to have a small width so as to have a predetermined flexibility. In addition, the strips 120 have a constant height. These strips 120 are arranged so as to be parallel to each other, and are arranged so that strip faces which are adjacent to each other as well as the wall faces face each other. The adjacent strips 120 are tightly coupled to each other at regular intervals along the longitudinal direction of the strips 120 (see the X-axis direction), and the geocell 100 is connected to the strip 120, Joints 140 that are mutually coupled portions. The mutual coupling of the strips 120 is preferably performed by ultrasonic welding. Depending on the operating conditions and the like, the mutual coupling of the strips 120 may be made by sewing, bonding, welding, or the like.

When the strips 120 are overlapped with each other as shown in FIG. 3 and the strips 120 are spaced apart from each other in the vertical direction (see the Y-axis direction) with respect to the strip surface in the folded state of the geocell 100 The geocell 100 is bent in the shape of a sinusoidal curve in the strips 120 and cells C10 are formed between the strips 120 in the geocell 100 as shown in FIG. The joints 140 forming the rows (see the one-dot chain line in FIG. 4) in the longitudinal direction (see the X-axis direction) of the strips 120 are arranged to be staggered with the joints in the neighboring rows, The cells C10 are also arranged in a staggered manner, so that the geocell 100 in the unfolded state has a honeycomb structure.

Although the number of the strips 120 is six (three pairs), the number of the strips 120 may be increased or decreased according to the area of the ground to be reinforced. Also, the length of the strips 120 can be increased or decreased according to the area of the ground to be reinforced, and accordingly, the number of cells C10 formed between the strips 120 can also be increased or decreased.

The geocell 100 is disposed in a state spread on the ground surface of the ground to be reinforced and is fixed on the ground in a state spread by the position fixing means 300. For example, as the position fixing means 300, pins having hooks on the upper side may be applied. Of course, the position fixing means 300 is not limited thereto, and any type can be applied as long as it can fix the geocell 100 in the unfolded state on the ground of the ground to be reinforced.

Each cell (C10) of the geocell (100) installed on the ground is filled with a filler (400). Filler 400 may be a particulate material selected from the group consisting of sand, gravel, earth, slag, and mixtures thereof. Although not shown, the strip surface of the strips 120 may be provided with holes, fine irregularities, or the like for improving frictional force with the filler material 400. By forming holes for improving frictional force on the strip surfaces of the strips 120, the effect of improving the drainage action between the cells C10 can also be achieved at the same time.

The cell walls C20 constituting the cells of at least one or more of the cells C10 constituting the columns (refer to the one-dot chain line in Fig. 5) in a direction perpendicular to the strip surface of the strips 120 A slit 122 forming a group is provided. 2, 3, 5, and the like, the slits 122 forming the group include cell walls C10 constituting the cells in the odd-numbered columns or the even-numbered columns among the cells C10 arranged in the vertical direction with respect to the strip surface (C20) (ie, one row to ten columns).

The slits 122 are elongated in the longitudinal direction of the strips 120. The slits 122 have a length that extends along the longitudinal direction of the strips 120 so as to be adjacent to the joint 140 whose both ends are located on both sides in the longitudinal direction of the strips 120 respectively. The plurality of slits 122 are provided in the corresponding cell wall C20 and are spaced apart from each other by a height direction of the cell wall C20 (see the Z-axis direction).

The sheet 200 is formed to have a predetermined length. The width of the sheet 200 is preferably constant. In addition, the width of the sheet 200 is set such that the length of the slits 122 curved along with the strips 120 as the strips 120 curved when the geocell 100 is unfolded It is preferable that the size corresponds to the straight line distance. Such a sheet 200 may be made flexible by geotextiles. At this time, the geotextile may be of the knitted, woven or nonwoven type.

The sheets 200 are sandwiched in slits 122 that are grouped (i.e., are oriented in a direction perpendicular to the strip surface) to pass through the geocell 100. Specifically, the sheets 200 are provided in a plurality and sandwich one by one in the group of slits 122 to pass the geocell 100 in a direction perpendicular to the strip surface (see Y-axis direction). Further, the sheet 200 is sandwiched between any one of the slits 122 having different heights.

Therefore, the sheet 200 is inserted into the openings C10 of the cells C10 on the lower side of the filler material 400 filled in the insertion sheet portions 210 and the cells C10, which are the portions fit into the grouped slits 122, And a blocking sheet portion 220 for blocking the lower side. The blocking sheet portions 220 located inside the cells C10 are connected to the insertion sheet portions 210 at both ends between the insertion sheet portions 210, respectively. The blocking sheet portions 220 can be held in a bent shape such that the both ends of the central portion are in contact with or contact with the inner wall of the cells C10 by the filling material 400 filled in the cells C10.

2, 6 and so on, three slits 122 are arranged at different heights in the corresponding cell wall C20 and the sheet 200 is fitted to the slit 122 at the lowermost side, As described above, the sheet 200 can be selectively fitted to any one of the slits 122 having different heights. The slits 122 in which the sheet 200 is fitted are used to bind the sheet 200 to the strip 120 and perform drainage while the remaining empty slits 122 mainly drain out between the cells C10 .

Both ends of the sheet 200 are sandwiched between slits 122 at the different heights of the two strips 120 disposed on the outermost side (the lowest slit with reference to Fig. 6) (The middle and / or the uppermost slit with reference to FIG. 6) and bound to both strips 120 disposed on the outermost side, respectively. Accordingly, the sheet 200 has binding sheet portions positioned at both ends in the longitudinal direction together with the insertion sheet portions 210 and the blocking sheet portions 220. [

As described above, the cell structure according to the first embodiment of the present invention is configured such that the cell walls C20 composed of the strips 120 constrain the filler material 400 filled in the cells C10, The strength and the supporting force can be greatly increased.

In addition, since the blocking sheet portions 220 of the sheet 200 suppress the downward flow of the filler material 400 in the inner region of the cells C10, it is possible to prevent the flow of the filler material 400 through the open lower side of the cells C10. It is possible to prevent sinkage from being caused due to leakage, etc. By arranging the blocking sheet portions 220 so as to traverse the inner region of the cells C10 and filling the filler material 400 above and below the blocking sheet portions 220, It can be surely prevented.

In general, the cell structure according to the first embodiment of the present invention is capable of restraining the filler material 400 around the cell C10, the upper side (upper structure blocks) and the lower side, The reinforcing effect can be ensured.

When a load is applied from the upper side, the filler material 400 is brought into close contact with the barrier sheet portion 220 of the flexible sheet 200 in the cells C10, and the frictional force with the filler material 400 Can be greatly increased. At this time, the frictional force is adjusted according to which height of the slits 122 having different heights is inserted into the slit.

On the other hand, the cell structure according to the first embodiment of the present invention binds one end of the sheet 200 to the slit 122 of one strip 120 disposed outermost as shown in Fig. 3, In a state in which the web 100 is folded, the other side of the sheet 200 can be rolled or stored.

7 shows a main part of a cell structure according to a second embodiment of the present invention. As shown in FIG. 7, the cell structure according to the second embodiment of the present invention is the same as the cell structure according to the first embodiment. 122b which are disposed at intervals along the longitudinal direction of the unit slits 122a, 122a and 120b, respectively, so that only the point that the sheet 200 is fitted to the unit slits 122a, 122b, respectively, Do.

8 shows a main part of a cell structure according to a third embodiment of the present invention. As shown in Fig. 8, the ground reinforcement cell structure according to the third embodiment of the present invention has the same construction and effects as those of the first embodiment (or the second embodiment) Except that the binding block 350 is detachably joined to both ends of the sheet 200 to prevent the sheet 200 from being separated from the slit 122 of the outermost strip 120 . That is, the end portion of the sheet 200 is inserted into a slit of any one of the slits 122 at different heights of the outermost strip 120, It is possible to use a separate binding block 350 instead of binding the sheet 200 to the strip 120. [

9 and 10 show a main part of the cell structure according to the fourth embodiment of the present invention. 9 and 10, the cell structure according to the fourth embodiment of the present invention is the same as the cell structures according to the first to third embodiments, 122a and 122b are provided at a certain height in the cell wall C20 and a plurality of drain holes 124 are provided at different heights from the slits 122, 122a and 122b.

While the present invention has been described in connection with what is presently considered to be the most practical and preferred embodiments, 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 invention.

Further, the technical ideas described in the embodiments of the present invention may be performed independently of each other, or two or more may be implemented in combination with each other.

100: Geocell
120: strip
122, 122a, 122b:
124: Sewer
140: Joint
300: Position fixing means
350: Binding block
400: Filler
200: sheet
210:
220: blocking sheet portion
C10: Cell
C20: Cell wall

Claims (5)

A plurality of strips of flexible strips arranged side by side and having joints formed by spacing said strips adjacent to each other in the longitudinal direction, said strips being spaced apart from each other, A plurality of slits formed in the cell wall of the cells of at least one row in the longitudinal direction of the strips;
And a flexible sheet having insertion sheet portions sandwiched between the slits formed in the group so as to pass through the geocell and sandwiched between the slits and barrier sheet portions both of which are accommodated in the cells and connected to the insertion sheet portions, ,
Wherein the barrier sheet portions have a central portion which is accommodated in an inner region of the cells so as to be restrained from the lower side of the filler filled in the cells,
Cell structure for ground reinforcement. The method according to claim 1,
The slits constituting the group are provided for each cell wall of the rows of the cells in a row and spaced apart along the height direction of the cell walls,
The sheet is sandwiched between the slits arranged at a certain height,
Cell structure for ground reinforcement. The method of claim 2,
At least one of both ends of the sheet is sandwiched between slits of different heights at different heights of the strips disposed at the outermost side and is fitted to a slit having a different height so as to be bonded to the outermost strip And,
Cell structure for ground reinforcement. The method according to claim 1,
Each of the slits constituting the group is constituted by a plurality of unit slits arranged at intervals along the longitudinal direction of the strips,
The sheet is sandwiched between unit slits,
Cell structure for ground reinforcement. The method according to claim 1,
Wherein at least one of both ends of the sheet is coupled to a binding block for preventing the sheet from being separated from the slit of the strip disposed outermost,
Cell structure for ground reinforcement.

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