KR20190048097A - Expansion mat for ground subsidence emergency recovery - Google Patents

Abstract

The present invention relates to an expandable mat for the emergency restoration of ground subsidence and, more specifically, relates to an expandable mat for the emergency restoration of ground subsidence, capable of stiffening an expanding agent (cutback asphalt) with predetermined strength and hardness by having a side expanded with a predetermined thickness through the expanding agent to fill a pothole if the expanding agent is injected into the expandable mat after the expandable mat is inserted into the pothole. The present invention comprises: first and second cover units made of a flexible but non-expandable material and installed to face each other; a connecting member connecting the first and second cover units while keeping a predetermined gap therebetween; an injecting means formed on one of the first and second cover units to inject an expanding agent; and a lateral means having a tip connected to the first and second cover units, and closing separated sides of the first and second cover units.

Description

Expansion mat for ground rescue emergency rescue [

The present invention relates to an inflatable mat for ground restoration, and more particularly, to a method for inflating an inflatable mattress, which comprises inflating a mattress capable of inflating in a sinkhole, injecting a liquid inflating agent into the mat to form a constant thickness by inflatable inflators (cutback asphalt) And an inflatable mat for inflating a pavement so that the inflator is hardened to have a predetermined strength and hardness while the side surface is inflated to fill the porthole.

In recent years, along with economic growth, civil structures such as factories, warehouses, shops, houses and other civil structures such as roads, parks, bridges and airports have been constructed throughout the country. However, This is because the structure is affected and cracks are generated due to this reason, so that the damages of buildings are often generated, and in the worst case, the buildings are collapsed. Such ground subsidence may be caused by insufficient construction that does not consider the strength of the foundation early in the construction of the structure. However, sometimes it is necessary to increase the amount of groundwater as a plant water in the soft ground, There are cases where the ground subsides due to the spring water or the collapse due to other construction such as the subway construction nearby.

There is a problem such that the housing or the like is tilted when such a settlement occurs or adversely affecting the passage of the vehicle due to the step of the road. In addition, if the structure is tilted by the subsidence, it may affect the equipment installed in the structure, and the inclination of the shelf in the structure may adversely affect the unloading operation. In addition, even if the structure is not inclined, there is a problem that vibrations that can not be ignored are generated when a gap is generated between the structure and the ground.

As a method for coping with such a problem, for example, in order to repair the inclination of the structure due to the subsidence, there are a method of dismantling and reconstructing the structure, a mortar or the like on the surface of the structure where the subsidence, the puddle, 10-695389, which discloses a method of injecting and treating a surface of a tilted structure by injecting a support member between a structure and an underground support layer, jacking up the structure with a support member, And a method of filling concrete and resin mortar into a gap formed between a structure and a ground to fill the gap (Japanese Patent Application Laid-Open No. 10-183661).

However, there is a problem that a large amount of industrial waste is generated, a large amount of machinery and materials are required for destruction and construction of the structure, and a long-term structure can not be used until it is broken and rebuilt. In a method of restoring a settlement, a sump, a step, or the like by surface treatment of a structure, when a heavy object is placed on a place where restoration is required (hereinafter referred to as a restoration place) or an impact is applied, Mortar and the like are detached. In the method of working the structure by the support member, since the ground below the structure must be broken up to the support layer, the operation is difficult, and there is a problem that the work and cost are incurred.

In order to solve such a structural problem, a method of injecting an injection pipe into the lower part of the ground where the settlement occurs, and then injecting foamed and expanded materials through the injection pipe to reinforce and restrain the ground may be used. (EP 1 536 069 A1)

This method is a very effective method of reinforcing and restoring the structure due to expansion and expansion of urethane foam penetrated into the lower part. However, in the reaction process of the urethane injected into the lower part, the water content of the lower part greatly affects the reaction rate and expansion ratio . That is, when there is a large amount of water in the lower soil, the reaction rate becomes faster than the normal rate and the expansion ratio becomes larger, and it is difficult to obtain the urethane foam foam of the desired strength. Particularly, the polyol mixture as a main component uses water as a polyol and a foaming agent which react with an isocyanate as a curing agent, so that it is easily mixed with water contained in the soil due to the use of a polyol having good compatibility with water, The polyol may be lost to water and the urethane reaction may not be achieved.

For this reason, the water content in the lower soil must be fully investigated, then the urethane should be used, and if there is a large amount of water, the work itself becomes difficult. Especially, when the difference of seasonal rainfall is large like Korea, it is difficult to work for a certain period of time. If a thorough investigation of the water content of groundwater is not performed before coastal, riverside, or near the lake, The construction itself is impossible, and it is necessary to damage the entire building.

Korean Patent Registration No. 1306796 Korea Patent No. 695389 Japanese Patent Application Laid-Open No. 10-183661 European Patent Publication EP 1 536 069 A1

SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems,

First, the inflating agent is injected into the mat, thereby facilitating the emergency restoration of the sink hole easily and quickly, the advantage of being easily installed along the surface of the irregular sink hole,

Secondly, it is possible to prevent the swelling agent from seeping into the surface of the sink hole, thereby preventing unnecessary inflation of the swelling agent and contamination of the surrounding environment, and a function of inducing the compaction effect of the surrounding soil by the pressure generated by the swelling agent injected into the mat In addition,

Thirdly, it is possible to maintain the flatness even without separately performing the flattening work, and the inflatable mat does not permeate into the surface of the sink hole, so that the mat can be easily removed only when the mat is removed. .

The object of the present invention is to provide an electronic device having a first cover means and a second cover means which are made of a flexible but non-inflated material and are installed facing each other; A binding member connecting the first cover means and the second cover means so as to maintain a constant gap; Injection means formed in one of the cover means of the first cover means or the second cover means and capable of injecting an inflator; And a side means connected to an end of the first cover means and the second cover means and closing a spaced side of the first cover means and the second cover means. .

Wherein the first sheet and the second sheet are formed by attaching one of a fiber layer made of a woven fabric or a nonwoven fabric and a coating layer, a sheet or a film so that a liquid does not permeate to one surface of the fiber member. Mat is accomplished by.

Wherein the connecting member is a stitching-sash.

Wherein the connection member is any one of a U shape and an H shape integrally formed with the attachment wings at both ends, the space forming part being integrally formed.

Wherein the injection means is formed by screwing a cap to an injection portion formed with a screw on an outer periphery of the injection port.

Wherein the side means is any one of an elastic fabric, a synthetic resin material, and a rubber.

The expansion mat of the present invention having the ground-depressed area emergency rescue function has the advantages of facilitating emergency recovery of the sink hole by injecting an inflating agent into the mat, and an advantage of being easily installed along the surface of the irregular sink hole And the inflation agent is prevented from being impregnated into the surface of the sink hole, unnecessary inflation of the inflator can be prevented, pressure is generated by the inflator injected into the mat, the mat is firmly installed in the sink hole, It is possible to maintain flatness even without use, and the inflatable material does not penetrate into the surface of the sink hole, so that the mat can be easily removed only when the mat is removed.

FIG. 1 is a perspective view showing the structure of an expansion mat for resilient restoration of ground depression subjected to the technique of the present invention. FIG.
FIG. 2 is a sectional view showing the structure of an inflatable mat for ground emergency depot emergency application to which the technique of the present invention is applied; FIG.
3 and 4 are cross-sectional views showing another embodiment of the present invention.
5A and 5B are cross-sectional views showing still another embodiment of the present invention.
FIG. 6 is a perspective view showing another structure of an expansion mat for resilient restoration of ground depression subjected to the technique of the present invention; FIG.
7A is an exemplary view showing an installation state of the present invention;
FIG. 7B is an exemplary view showing another installation state of the present invention; FIG.

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

FIG. 1 is a perspective view showing the structure of an expansion mat for emergency rescue recovery according to the present invention, FIG. 2 is a cross-sectional view showing the structure of an expansion mat for emergency rescue, The expansion mat 1 of the first cover means 10 comprises a first cover means 10 and a second cover means 20 which are made of a flexible but non-inflated material and are arranged to face each other, (30) for connecting the first cover means (20) and the second cover means (20) to each other so as to maintain a constant gap therebetween and an inflator And means for closing the spaced apart sides of the first cover means 10 and the second cover means 20, the means 40 being connected at its ends to the first cover means 10 and the second cover means 20, (50).

The first cover means 10 and the second cover means 20 are formed by applying a resin so that liquid does not permeate through one side of the fibrous members 12 and 22 made of a woven or nonwoven fabric and the fibrous members 12 and 22 And a waterproofing member 11 (21) formed of any one of a sheet and a film.

Preferably, the fiber members 12 and 22 made of woven fabric or nonwoven fabric are first placed in parallel, and then stitched and connected in the vertical direction. At this time, the stitching yarn is selected from natural fiber yarns such as wool, cotton, silk, hemp, synthetic filament yarn such as rayon, polyester, acryl, nylon, and mixed yarn mixed therewith. And the second cover means 10 are held at a constant interval.

When the two fibrous members 12 and 22 are connected by the stitching operation as described above, when the liquid is not transmitted to one surface of each of the fibrous members 12 and 22, And the waterproofing members 11 and 21 may be formed of any one of PP, PE, PET and HDPE.

In the present invention, the binding member 30 is described as a binding member 30 that binds while maintaining the gap between the first cover means 10 and the second cover means 20. However, as shown in FIGS. 3 and 4, It is also possible to select and use the gap forming members 60 and 60a which are either of the U and H shapes in which the binding members 30 are integrally formed with the mounting wings at both ends.

When the gap forming members 60 and 60a are used as described above, a liquid is permeated to one surface of the fiber member 12 and the fiber member 22 made of a woven or nonwoven fabric as shown in Figs. 3 and 4, In the structure of the first cover means 10 or the second cover means 20 of a double structure in which waterproof members 11 and 21 formed of any one of a coating layer, The fiber members 12 and 22 may be omitted and the ends of the gap forming members 60 and 60a may be directly attached to the waterproofing members 11 and 21 as shown in FIGS.

Also, although the gap-forming members 60 and 60a are shown as strips, it is preferable to form the mesh shape. The reason for this is that in order to increase the tensile force at the time of curing of the inflated infusion liquid, it is necessary to inject the inflating agent into the cover means of either the first cover means 10 or the second cover means 20 Means 40 are formed.

The injection means 40 has a structure in which a plug 42 is screwed to an injection portion 41 formed with a screw on the outer periphery of the injection port. The first cover means 10 or the second cover means 20 The cover means is cut into a certain size and then the injection means 40 is installed in the cut portion.

The upper surface of the plug 42 must be at the same height or lower as the surface of the first cover means 10 or the second cover means 20 when the injection means 40 is installed. The reason for this is to prevent the injection means 40 from protruding from the surface of the first cover means 10 or the second cover means 20 during the installation of the mat.

Side means 50 having ends connected to the first cover means 10 and the second cover means 20 and closing the spaced apart sides of the first cover means 10 and the second cover means 20, . The side means 50 is preferably an upper attachment method using a transparent one and folding the ends inward to attach them to the top or bottom of each cover means, preferably with a structure to wrap each cover means.

On the other hand, the expansion mat of the present invention equipped with the injection means 40 is suitable for filling a sink hole having a large area, and when the sink hole is small as shown in FIG. 6, an expansion mat in which the injection means is omitted can be used At this time, the inflator injection method can be filled with a needle.

The use of the expansion mat according to the present invention having the above structure can be achieved by arranging the inner surface of the sinkhole in a straight shape while considering the expansion thickness of the mat as soon as the sinkhole is generated as shown in FIG. Into the sink hole.

 When the expansion mat (1) is installed in the sink hole as described above, the plug (42) is separated and the inflating agent is injected through the injection port to fill the space and the mat (1) is unfolded by the inflating agent. The expansion of the expansion mat (1) gradually expands due to the capacity of the inflating agent to be injected, while the expansion in the upward direction is expanded by the length of the coupling member (30).

The binding member 30 has an effect of holding the first cover means 10 and the second cover means 20 at a predetermined interval by the injected inflator. Meanwhile, after the expansion in the upward direction, the expansion in the upward direction is limited and the expansion in the lateral direction is inflated. At this time, the side expansion bulges against the inner surface of the sink hole and simultaneously the pressure inside the mat rises, At this time, the injection of the inflator is completed, and the plug 42 is screwed into the injection port 41. At this time,

When the injection is completed within the mat as described above and the predetermined time has elapsed, the inflator is hardened and the emergency recovery of the sink hole is completed. On the other hand, if the depth of the sink hole is deep, the expansion mat 1 may be installed in multiple stages, or if the sink hole is wide, the expansion mat may be arranged horizontally and, when the sink hole is small, The inflatable infusion method can be loaded using a tool such as a syringe.

On the other hand, as shown in FIG. 7B, when the depth of the sink hole is wide and the width of the sink hole is narrow, the expansion mat 1 may be installed standing upright. At this time, the bottom of the sink hole becomes the support surface and expands in the upward direction, and the top surface of the sink hole is aligned parallel to the surface of the sink hole.

The expansion mat of the present invention having the ground-depressed area emergency rescue function has the advantages of facilitating emergency recovery of the sink hole by injecting an inflating agent into the mat, and an advantage of being easily installed along the surface of the irregular sink hole And the inflation agent is prevented from being impregnated into the surface of the sink hole, unnecessary inflation of the inflator can be prevented, pressure is generated by the inflator injected into the mat, the mat is firmly installed in the sink hole, It is possible to maintain flatness even without use, and the inflatable material does not penetrate into the surface of the sink hole, so that the mat can be easily removed only when the mat is removed.

1: expansion mat 10: first cover means
11, 21: waterproof member 12, 22:
20: second cover means 30:
40: injection means 41: injection unit
42: stopper 50: side means
60a, 60b:

Claims (9)

A first cover means and a second cover means made of a flexible but non-inflated material and facing each other;
A binding member connecting the first cover means and the second cover means so as to maintain a constant gap;
Injection means formed in one of the cover means of the first cover means or the second cover means and capable of injecting an inflator;
Wherein the first cover means and the second cover means are provided with side ends connected to the first cover means and the second cover means and closing the spaced side surfaces of the first cover means and the second cover means.
The method according to claim 1,
The first cover means and the second cover means
And a waterproof member made of any one of a coating layer, a sheet, and a film is adhered to one side of the fiber member and the one side of the fiber member made of woven fabric or nonwoven fabric.
The method according to claim 1,
And the binding member is a stitching-sag.
The method according to claim 1,
Wherein the binding member is any one of a C shape and an H shape integrally formed with an attachment blade at both ends thereof.
The method according to claim 1,
Wherein the injection means is formed such that a stopper is screwed to an injection portion formed with a screw on the outer periphery of the injection port.
The method according to claim 1,
Wherein the side means is a transparent material.
The method according to claim 1,
Wherein the side surface means is any one of a synthetic resin material and rubber.
The method according to claim 1,
The first cover means and the second cover means
And a single sheet or film having a constant thickness so that the liquid does not permeate.
A first cover means and a second cover means made of a flexible but non-inflated material and provided so as to face each other;
A binding member connecting the first cover means and the second cover means so as to maintain a constant gap;
Wherein the first cover means and the second cover means are provided with side ends connected to the first cover means and the second cover means and closing the spaced side surfaces of the first cover means and the second cover means.

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