KR102058881B1 - Method for constructing the firming matt - Google Patents

Abstract

An objective of the present invention is to provide a method for constructing a solidified mat which can prevent construction defects. The method for constructing a solidified mat including an upper cloth sheet to absorb water, a lower waterproof sheet coming in contact with a construction surface, and a cement layer having cement powder interposed between the upper cloth sheet and the lower waterproof sheet and solidified by reacting with water absorbed by the upper cloth sheet comprises: a step of preparing the solidified mats rolled in a roll shape; a step of laying a plurality of solidified mats to sequentially unroll the solidified mats on a flattened construction surface to cover the construction surface; and a step of connecting overlapping portions between solidified mats adjacent to each other to connect the plurality of laid solidified mats. The solidified mat includes an extension sheet protruding from an edge of one side of the lower waterproof sheet more outwards than an edge of one side of the upper cloth sheet by a prescribed width. The step of laying the solidified mats forms an overlapping portion where the lower waterproof sheet of the solidified mat is placed and overlapped on the upper surface of the extension sheet of another adjacent solidified mat.

Description

Method for constructing the firming matt}

The present invention relates to a method of constructing a solidified mat, more specifically, a joint connection operation for overlapping areas between adjacent mats of the mating operation of the joint connection between the sheets having the same material to each other by a simple structural change of the solidified mat The present invention relates to a solid mat construction method capable of preventing construction defects in which overlapping portions of a solid mat are spread due to poor bonding while increasing the bonding strength while ensuring the flatness of the entire construction surface after the construction of the solid mat.

In general, in the case of large-scale land construction, road construction, landfill adjustment, etc., incline and cut slopes are inevitably formed, and various methods for protecting the surface of these slopes are used. It is a construction method.

This is to form a concrete protective layer by forming, pouring and hardening the form of a formwork, etc. in the position to be transported by the wet concrete manufactured in the factory to the vehicle.

The shotcrete method, which is a spraying technique, is applied to the cutting slope of steep slopes, and the shotcrete method is a method that induces stabilization of the surface layer by covering the surface of the unstable slope surface with concrete and has been frequently applied because of its advantages.

However, the shotcrete method uses excessive amounts of equipment by spraying liquid onto the excavated surface, and requires a lot of time for preliminary work, and also uses a pump to place noise, and the end of the nozzle Since the operation is carried out by the holding the safety problem that the operator inhale the particles harmful to the human body occurred during the injection.

In addition, in the process of placing concrete to finish the slope in storage tanks, waterways, artificial lakes, etc., molds for curing and preventing the leakage of concrete are additionally used.There is a problem that concrete pouring cannot be performed without installing the formwork. In addition, there was a problem such as the time required for the preliminary preparation work and the placing work for concrete pouring and the excessive workforce.

In order to solve this problem, a solidified mat, which is an on-site hydrated concrete mat, is applied, and is installed on the site in the form of a composite mat supporting dry cement mixed powder, and then, by simply hydrating a reaction between water and fast-hardening cement which is penetrated by simple water spraying and spraying. When the cement mixture is cured, the concrete protective layer can be easily formed.

When installing the solidified mat on a flat construction surface such as a slope or the bottom of a waterway, in the process of overlapping the both sides of the solidified mat in order to prevent leakage due to gaps between adjacent mats Since the overlapping portion of the solidified mat is relatively protruded upward, the overall appearance made by the solidified mat after the construction is not smooth and a problem is constructed unevenly.

In addition, by bonding the bonding material to the bonding portion overlapping each other adjacent mats, the upper layer of the solidified mat is made of a cloth sheet, such as a non-woven fabric that can easily absorb moisture, while the lower side of the solidified mat for waterproofing Since it is made of a waterproof sheet, the bonding strength and adhesive strength between the cloth sheet and the waterproof sheet made of different materials are poor, resulting in a construction failure in which overlapping areas are opened after construction.

(Patent Document 1) KR10-2012-0132745 A

In Patent Document 1, a first solidified mat is provided in a lattice form, and a second solidified mat is provided to cover between the first solidified mats provided in a lattice form, and each second solidified mat is formed between the first solidified mat. Formed so as to correspond to the periphery of the second solidified mat is bonded to the first solidified mat and is installed so as to be connected to the adjacent second solidified mat, the solidification that can minimize the overlap between the adjacent mat mat The mat construction method is disclosed.

However, because of the construction method, the joining of overlapping parts of the solidified mats installed adjacent to each other is made by joining dissimilar materials with different materials, so that the construction mat is lifted or opened due to the joint failure after construction. It was difficult to solve.

Accordingly, the present invention is to solve the problems as described above, the object of the joining operation for the overlapping area between the adjacent mats of solidification between the sheets having the same material to each other by a simple structural change of the mat To provide a solid mat construction method that can prevent the construction failure of overlapping part of the solidified mat due to the poor bonding by increasing the bonding strength by ensuring the flatness of the entire construction surface after the construction of the solidified mat do.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned above will be clearly understood by those skilled in the art from the following description. Could be.

As a specific means for achieving the above object, a preferred embodiment of the present invention, the upper fabric sheet is water is absorbed, the lower waterproof sheet in contact with the construction surface and the upper sheet between the upper sheet and the lower waterproof sheet Claims [1] A method for constructing a solidification mat comprising a cement layer interposed between cement powder solidified by reacting with water absorbed through a bucheon sheet, the method comprising: preparing a solidification mat in which the solidification mat is rolled; Laying out a plurality of solidifying mats so as to cover the construction surface by sequentially spreading the solidification mat on a flattened construction surface; And connecting a plurality of installed mats by connecting overlapping portions of adjacent mats to each other, wherein the mat is fixed width by a predetermined width from one side edge of the lower waterproof sheet to an outer side than one side edge of the upper cloth sheet. And a protruding extension sheet, and the step of laying the solidification mat may form an overlapping portion where the bottom waterproof sheet of another solidification mat adjacent to the upper surface of the extension sheet of the solidification mat is lifted up to be in contact with the solidification mat. The connecting step may include lifting one edge of another extension mat corresponding to the extension sheet so that the top surface of the extension sheet is exposed to the outside, and the top surface or the other adjacent edge of the extension sheet to be exposed. Applying a predetermined amount of the bonding material to the lower surface of the lower waterproof sheet of the solidified mad to the overlapping portion via the bonding material And connecting the other edges of the other mats of mats adjacent to each other while the joints are bonded to each other, and after connecting the mats of the mats, the overlapping portion and the upper portion of the mat of the mats. Pressing the overlapped portion so that the bonding material interposed between the extension sheet and the lower waterproof sheet is spread evenly by a pressure roller rolled outside the surface, and sprays water so that moisture is impregnated in the exposed top fabric sheet. And then supplying a spray and then performing a thumb test to press the surface of the solidified mat with a thumb to check the saturation state of the water absorbed by the upper fabric sheet. to provide.

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Preferably, the step of connecting the solidified mat, fastening the fastening member to the end exposed to the lower surface of the extension sheet through the overlapping portion or the lower end penetrating the overlapping portion is inserted into the construction surface to a certain depth It may be made by a plurality of anchor pins that are fixed.

Preferably, before or after the step of connecting the solidified mat, the step of forming a fixed groove of a predetermined depth in the width direction of the solidified mat on the construction surface corresponding to one or both ends of the solidified mat; Positioning the solidified mat by the load of the mat fixing weight is inserted into the fixing groove disposed on the bottom surface one end or both ends of the solidified mat.

According to the preferred embodiment of the present invention as described above has the following effects.

By the simple structure change of the solidified mat forming the extension sheet extending outward from one side edge of the lower waterproof sheet in contact with the construction surface, the joint connection work for the overlapping areas between the adjacent mats between the sheets having the same material It is possible to minimize the height of the protrusion caused by the overlapping parts between the solidified mats by the thickness of the lower waterproof sheet, and to prevent the poor bonding, so that the flatness of the entire construction surface after the solidified mat is stable. It can ensure the reliability of the product and prevent the lifting of the overlapped part due to the poor bonding, thereby increasing the product reliability.

1 is a perspective view showing a solidified mat applied to the solidified mat construction method according to an embodiment of the present invention.
2A and 2B are configuration diagrams and cross-sectional views showing a process of laying the first solidified mat on the flattened construction surface in the solidified mat construction method according to the embodiment of the present invention.
3a and 3b is a configuration diagram and a cross-sectional view showing a process of forming the overlapping portion by laying the solidification mat in the solidification mat construction method according to an embodiment of the present invention.
4a and 4b is a configuration diagram and a cross-sectional view showing a process of connecting the overlapping portion as a bonding material in the solidification mat construction method according to an embodiment of the present invention.
5a and 5b is a configuration diagram and a cross-sectional view showing a pressing process using a pressure roller in the solidified mat construction method according to an embodiment of the present invention.
6a and 6b is a configuration diagram and a cross-sectional view showing a process of connecting the overlapping portion as an anchor pin in the solidification mat construction method according to an embodiment of the present invention.
7A and 7B are schematic views showing a process of fixing one or both ends of the solidified mat as the weight for anchor in the solidified mat construction method according to the embodiment of the present invention.

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, in describing in detail the structural principle of the preferred embodiment of the present invention, when it is determined that the detailed description of the related known functions or configurations may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, the same reference numerals are used for parts having similar functions and functions throughout the drawings.

In addition, throughout the specification, when a part is 'connected' to another part, it is not only 'directly connected' but also 'indirectly connected' with another element in between. Include. In addition, the term 'comprising' a certain component means that the component may be further included, without excluding the other component unless specifically stated otherwise.

The solidification mat construction method according to the preferred embodiment of the present invention may include preparing a solidification mat 1, laying the solidification mat 1, and connecting the solidification mat.

The step of preparing the solidified mat 1 is to prepare a roll-shaped solidified mat of a fixed length of the fixed mat is rolled.

As shown in FIG. 1, the solidified mat 1 includes an upper cloth sheet 10 made of a cloth material such as a nonwoven fabric in which water is absorbed and impregnated, and a thin film to contact the construction surface to perform a waterproof function. It includes the same lower waterproof sheet 50, a predetermined amount of cement powder is solidified by reacting with the moisture absorbed through the upper fabric sheet 10 between the upper fabric sheet 10 and the lower waterproof sheet 50 It includes a cement layer 30 of a predetermined thickness interposed.

Between the upper fabric sheet 10 and the cement layer 30 is disposed a grid type geogrid 20 to prevent the externally exposed upper fabric sheet is pushed by an external force, and the cement layer and the lower waterproof sheet 50 In between may include a lower cloth sheet 40 is fixed to the upper surface of the lower waterproof sheet by the adhesive (45).

 The solidified mat 1 protrudes outwardly from one side edge of the lower waterproof sheet one side edge of the upper cloth sheet by a predetermined width (W) and overlaps with the lower waterproof sheet 50, which is a lower surface of another solidified mat adjacent thereto. And an extension sheet 55 forming (P).

That is, the solidified mat (1) is a three-dimensional soft cement fabric that is cured in contact with the water penetrated through the upper cloth sheet (10) made of a material having excellent water absorption, the solidified mat (1) for the hydration It includes a top cloth sheet composed of a fabric that penetrates water, and a bottom waterproof sheet composed of a PVC thin film that plays a waterproof role to prevent water from penetrating the ground construction surface after construction.

In the step of laying the solidified mat 1, as shown in FIGS. 2A and 2B, the solidified mat 1 having the extension sheet 55 on one side edge is sequentially spread on a flattened construction surface. It is laid to cover the surface.

Here, the work of laying the roll-type solidified mat rolled in a roll shape to cover the construction surface of the fixed length of the fixed mat is rolling by rolling in the unwinding direction relative to the center bar 12 provided at the center of the rolled solidified mat. It is preferable to lay the upper fabric sheet 10 as an upper layer exposed to the outside and to spread the solidified mat with the lower waterproof sheet 50 as a lower layer in contact with the construction surface.

That is, in the process of laying the solidified mat on the construction surface, the lower part of the other solidified mat 1 adjacent to the upper surface of the extension sheet 55 extending a predetermined width from the lower waterproof sheet of one side edge of the solidified mat 1. As the lower surface of the waterproof sheet 50 is raised and contacted, the extension sheet of one solidification mat and the lower waterproof sheet of the other solidification mat are stacked up and down to form an overlapped portion.

This overlapping portion (P) is formed repeatedly in the width direction of the solidified mat (1) to the number N-1 of the installation number (N) of the solidified mat.

At this time, one edge of the solidified mat (1) is preferably opposed to the other edge of the other mat mat so as not to generate a gap, the other edge of the other mat mat by the thickness of the extension sheet forming the overlapping portion It may protrude in an area corresponding to the overlapped portion.

Connecting the solidified mat is a plurality of laid by integrally connecting the overlapping portion (P) between the solidified mats (1) which are installed in the longitudinal direction adjacent to each other side by side as shown in Figure 3a and 3b The solidification mat 1 is connected to each other.

The process of connecting between the solidified mats 1 adjacent to each other may be performed using an adhesive means such as an adhesive as shown in Figs. 4a and 4b.

That is, the extension sheet 55 of the solidified mat 1 and the lower waterproof sheet 50 of the other solidified mat 1 adjacent to each other overlap to form an overlapping portion P, which is different from one side edge of the solidified mat. In the state where the other edges of the mat of mats are laid so as to be in contact with each other, an extension sheet 55 for forming an overlapping portion P by lifting an edge of one side of another mat of mating mats disposed corresponding to the extension sheet. Expose the upper surface of) to the outside.

Subsequently, a predetermined amount of the bonding material is applied to the upper surface of the extended sheet 55 that is exposed to the outside or the lower surface of the lower waterproof sheet 50 of the other solidified mat 1 adjacent thereto, and then the other surface is coated on the upper surface of the extended sheet. When the solidified mat lifted up as it is so that the lower surface of the lower waterproof sheet of the solidified mat is in contact with each other, the overlapping portion P is bonded to each other through the bonding material.

In this case, the bonding material is illustrated and described as applying a liquid adhesive, but is not limited thereto, and may be replaced with an adhesive tape such as a double-sided tape.

On the other hand, after the step of connecting the overlapping portion (P) using the bonding material (B), as shown in Figure 5a 5b, to increase the bonding strength between the extension sheet 55 and the lower waterproof sheet made of the same material It is possible to add a step of pressing the overlapping portion by using the pressure roller 70 to be able to.

This pressurizing process is to extend the sheet by transferring the pressing force to the overlapping portion (P) by using the pressure roller 70 is rolled while rolling rolling in one direction to the outer surface of the solidified mat corresponding to the overlapping portion (P) Bonding strength by the bonding material can be further increased after a certain period of time by spreading evenly so that the layer thickness of the bonding material interposed between the 55 and the lower waterproof sheet 50 becomes uniform.

The process of connecting between the solidified mats 1 adjacent to each other may be performed using a fixing means such as an anchor pin as shown in Figure 6a and 6b.

That is, the extension sheet 55 of the solidified mat 1 and the lower extension sheet 50 of the other solidified mat 1 adjacent to each other overlap to form an overlapping portion P, which is different from one side edge of the solidified mat. In the state where the other edges of the solidified mat are installed to be in contact with each other, the end of the anchor pin 80 is exposed to the lower surface of the extended sheet through the other solidified mat and the extension sheet forming the overlapping portion, By fastening the fastening member 82 to the end of the anchor pin is to connect the overlapping portion (P) between the solidified mats adjacent to each other via the anchor pin.

At this time, the anchor pin 80 is shown and described as fastening the fastening member to the end exposed to the lower surface of the extension sheet of the overlapping portion, but is not limited thereto, but is illustrated and described as applying a liquid adhesive, but is not limited thereto. The lower end of the anchor pin may be inserted into and fixed to a construction surface by penetrating the overlapping portion.

In addition, the anchor pin 80 is shown and described as being made of a straight shape, but is not limited to this may be selectively constructed by employing an anchor pin bent in a strong c-shape.

On the other hand, the solidified mat (1) constructed to cover the slope of the slope or the bottom surface of the water channel as shown in Figs. 7A and 7B, one end or both ends of the slope or the water channel at each end Each position can be fixed so as not to flow down.

That is, the one end or both ends of the solidified mat 1 is recessed to form a fixing groove 92 of a predetermined depth in the width direction of the solidified mat, and at least one portion or both ends of the solidified mat. To the bottom surface of the fixing groove 92, and then by mating the mat fixing weight 90 into the fixing groove 92, one end or both ends of the solid mat is disposed on the bottom surface, the mat One end or both ends of the solidification mat 1 can be firmly fixed to each end of the slope or channel by the load of the fixing heavy object.

The process of constructing the mat-fixing weight 90 may be selectively performed before or after the process of connecting the mats of the solidified mat adjacent to each other.

By installing the solidified mat on the construction surface by the above-described solidified mat construction method, connecting overlapping portions between adjacent solidified mats, and spraying water by spraying water so that water is impregnated into the upper cloth sheet exposed to the outside.

In this case, when the inclination of the construction surface is large, it is very important to impregnate the top fabric sheet evenly because the water impregnated by its own weight is biased to the lower end of the top fabric sheet.

In order to check the water absorbed in the upper fabric sheet in a saturated state, the operator presses the surface of the solidified mat with a thumb and performs a 'thumb test' to easily saturate the water absorbed in the upper fabric sheet. The water supply can be carried out while checking.

When the water absorbed by the upper fabric sheet is subjected to the hydration reaction with the fast-diameter cement powder of the cement layer, the cement layer is cured and converted into a concrete layer capable of expressing strength after a certain time.

The present invention described above is not limited to the above-described embodiment and the accompanying drawings, and various substitutions, modifications, and changes are possible within the scope without departing from the technical spirit of the present invention. It will be evident to those who have knowledge of.

10: top cloth sheet
20: geogrid
30: cement layer
50: lower waterproof sheet
55: extension sheet
70: pressure roller
80: anchor pin
90: heavy weight for mat fixing

Claims (5)

Cement layer interposed between the upper fabric sheet to absorb water, the lower waterproof sheet in contact with the construction surface and the cement powder is solidified by reacting with the moisture absorbed through the upper fabric sheet between the upper fabric sheet and the lower waterproof sheet In the method of constructing a solid mat comprising a,
Preparing a solidified mat in which the solidified mat is rolled;
Arranging a plurality of solidifying mats so as to cover the construction surface by sequentially spreading the solidification mat on a flattened construction surface;
Connecting the plurality of installed mats by connecting overlapping portions of the adjacent mats to each other,
The solidified mat includes an extension sheet protruding outward from the one side edge of the lower waterproof sheet by a predetermined width than the one side edge of the upper fabric sheet,
The step of laying the solidified mat to form an overlapping portion where the lower waterproof sheet of another solidified mat adjacent to the upper surface of the extension sheet of the solidified mat is raised and contacted,
The connecting of the solidified mat may include lifting one edge of another solidified mat corresponding to the extended sheet so that the upper surface of the extended sheet of the solidified mat is exposed to the outside;
Applying a certain amount of bonding material to the upper surface of the outer sheet is extended or the lower surface of the lower waterproof sheet of the other solidified mat adjacent to the one side border of the solidified mat while joining the overlapping portion through the bonding material Connecting the other edges of the other mat to be in contact with each other;
After connecting the solidified mat,
Pressurizing the overlapping portion so that the bonding material interposed between the extension sheet and the lower waterproof sheet is spread evenly by a pressure roller rolled outwardly with the upper surface of the solidification mat corresponding to the overlapping portion;
After spraying and spraying water so that water is impregnated to the exposed top fabric sheet, the worker presses the surface of the solidified mat with a thumb to perform a thumb test to check the saturation state of the water absorbed by the top fabric sheet. Including the steps of:
The step of connecting the solidified mat, the lower end penetrating the overlapping portion is made of a plurality of anchor pins are inserted into a fixed depth to the construction surface,
Before or after the step of connecting the solidified mat, recessing a fixed groove having a predetermined depth in the width direction of the solidified mat at a top end of a construction surface corresponding to one or both ends of the solidified mat;
One end or both ends of the solidified mat is placed on the bottom surface of the fixing groove, and then the mat fixing weight is inserted correspondingly into the fixing groove so that one or both ends of the fixing mat are loaded by the mat fixing weight. Solid mat construction method comprising the step of fixing to position. delete delete delete delete

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