KR20030026055A - a under drainage method for building using perforated drain pipes - Google Patents

Abstract

PURPOSE: A process for underground water drainage of a structure is provided to prevent settlement of ground supporting the structure caused from the drainage and to efficiently use the underground water by applying porous pipe. CONSTITUTION: The process is accomplished by an porous pipe assembly including inner drainage pipes(100) and outer drainage pipes(200). Each of the inner drainage pipes(100) is an porous pipe to receive inflow of the underground water and to be connected to each of the outer drainage pipe(200). The outer drainage pipe is laid outside an outline(G) for building a structure as another porous pipe with varied shapes and collects the underground water. Alternatively, perpendicular drainage pipes(300) flows the collected underground water out of the outer drainage pipe(200) above the ground.

Description

Underground drainage method using perforated pipes {a under drainage method for building using perforated drain pipes}

The present invention relates to a structure underground drainage method using a perforated pipe. More specifically, after excavating the ground to the final depth of underground excavation, the excavation of the drainage pipe is carried out, and a plurality of internal drainage pipes are gradientd in the space formed by the drainage pipe excavation to install in a predetermined form. It is connected to the internal drainage pipe and installs various types of external drainage pipes such as crosses outside the building line of the building to collect groundwater introduced into the internal drainage pipe, and is connected to the external drainage pipe to form a plurality of vertical drainage pipes formed vertically to the ground surface. By installing, the groundwater collected by the external drainage pipe is discharged to the outside through the vertical drainage pipe or maintained at a constant level as it is, and a separate collection well is conventionally installed to treat groundwater flowing through the building or building foundation. To reduce the cost of installing the sump The efficiency of the perforated pipes can be increased by using the perforated pipes formed with filtration means such as nonwoven fabric as the internal, external and vertical drainage pipes to use the groundwater that has been drained before the contained substances are used for living water. It is about efficient structure drainage method.

Underground drainage method such as a conventional building, as shown in Figure 1a, do not use a drainage pipe, such as a perforated pipe, after completion of the construction underground digging, after the floor concrete (2) or lean (LEAN) concrete with a waterproof layer (1) is formed By pouring and completing immediately, a method of preventing the groundwater (W) flowing from the bottom of the building basement from entering the basement of the building, or after completing the construction of the ground under construction as shown in FIG. After disposing at the top of the lower part of the trench 3 in a predetermined form so as to facilitate drainage treatment, the floor of the building basement is formed by pouring floor concrete with or without forming a water-permeable layer such as gravel covering the perforated pipe. The groundwater flowing from the lower portion is introduced into the perforated pipe, and the groundwater flowing into the perforated pipe as shown in FIG. 1C passes through the perforated pipe. A method of draining ground water finally collected through storm pipes (6) or direct streams by a catch or natural gradient by collecting water into a sump (4) buried at a specific location under the bottom of the digger is used. .

However, the method of treating the groundwater flowing from the bottom concrete of the structure by placing the floor concrete or lean concrete in which the waterproofing layer is formed basically does not drain the groundwater separately, and the ground concrete or the lean concrete itself receives groundwater inflow. Because of the structure, the watertightness decreases at the same time as the durability of the floor concrete or lean concrete decreases over time, and the groundwater flows into the basement of the structure. In addition to the additional cost of repairs, there is a problem in that the life of the structure is shortened due to the inflow of groundwater.In addition, the groundwater introduced during the construction of underground trenches is discharged as it is to the rainwater pipe, so that the groundwater cannot be effectively used. Ah In addition, the groundwater treatment plan must be established in advance before the floor concrete or lean concrete is hit, and the building construction must be carried out by draining the groundwater separately.

The method of treating groundwater introduced from the bottom concrete floor of a structure such as a building by using the perforated pipe has the advantage of having a large drainage effect by using a water flow layer such as a perforated pipe and gravel, but separates the groundwater introduced into the perforated pipe into the sump. In addition, the water collection facility costs are additionally generated in that the water is collected and finally drained, and the water delivery layer is installed on the perforated pipe, and the floor concrete and the like are formed directly thereon, so that the weight of the floor concrete and the building immediately becomes the drainage layer and the perforated pipe. If the groundwater collected in the sump is drained by a separate storm pipe, the groundwater level around the structure will continue to drop if a large amount of groundwater is drained. It can cause groundwater efficiently It is not used, and the situation that wastes the water resources just by draining the ground water that can be used as living water there is a problem that does not use the ground water efficiently.

The present invention is to solve the above problems,

An object of the present invention is to provide a structure underground drainage method using a perforated pipe that can effectively utilize the groundwater is possible to prevent ground subsidence of the bottom of the structure underground due to excessive groundwater discharge.

Another object of the present invention is to provide a structure underground drainage method using a perforated pipe that can collect and treat the groundwater collected in the lower part of the structure basement without installing a separate collection well for groundwater treatment.

Still another object of the present invention is to provide a structure underground drainage method using a perforated pipe which can provide a means for using the collected groundwater as living water.

1a and 1b is a conceptual diagram of the groundwater treatment method of the conventional basement floor.

Figures 2a, 2b and 2c is a perspective view, an exploded perspective view and an installation perspective view of the perforated tube which is an embodiment of the present invention.

Figure 3a and Figure 3b is a perspective view of the installation of the inner drain pipe that is an embodiment of the present invention.

4A, 4B and 4C are installation perspective views in which external drain pipes and vertical drain pipes of various shapes are connected to an inner drain pipe which is an embodiment of the present invention.

5 is a flowchart of a structure drainage method which is an embodiment of the present invention.

Figure 6 is a state diagram filled with the ground water in the vertical drainage pipe which is an embodiment of the present invention.

<Description of the symbols for the main parts of the drawings>

1: drainage layer 2: floor concrete

3: basement digging bottom surface 4: water catch

5: conventional merit building 6: excellent building

10: Filtration means 20: Merit pipe

30,40: Connector

100: internal drain pipe 200: external drain pipe

300: vertical drain pipe 400: structure

500: underground breaker bottom surface 600: trench

700: water level detection sensor 800: sensor detection device

900: submersible pump

The present invention can utilize the advantages of having groundwater in the ground, such as ground subsidence due to excessive outflow of groundwater, because the groundwater more than necessary is not drained from the bottom of the structure basement, the installation cost is not required By using the hollow pipe wrapped with a non-woven fabric as an internal, external and vertical drainage pipe to reduce the maximum, to provide a means for the efficient drainage treatment of groundwater flowing from the bottom of the structure basement, the most preferred embodiment of the present invention 2 to 6 will be described in detail.

Structure underground drainage method using the perforated pipe of the present invention is connected to the inner drainage pipe, the inner drainage pipe is installed under the underground trench bottom surface, the outer drainage pipe and the outer drainage pipe installed outside the construction line of the structure, such as the basement of the structure basement floor It is connected vertically to, and is made by installing a plurality of vertical drain pipe that is installed to the ground surface. First, the internal drainage pipe, the external drainage pipe and the vertical drainage pipe used in the structure underground drainage method of the present invention will be described first, and a method of installing the same will be described.

[Internal drain pipe, external drain pipe and vertical drain pipe]

The inner drain pipe 100, the outer drain pipe 200 and the vertical drain pipe 300 is used for the hole 20 is formed on the outer surface of the filtering means 10, such as a nonwoven fabric.

The perforated pipe 20 is formed with a plurality of holes 22 in the body 21 of the pipe so that ground water, etc. are introduced through the hole, and the ground water flows into the final collection position by the pipe gradient along the pipe. As one of the drain pipes that serves to collect, the material is used concrete, but the weight is heavy because of the disadvantages of heavy weight, easy to process PVC (polyvinyl chloride) made of porous pipes are mainly used. In the case of PVC perforated pipes, the corrugated protrusions are mainly used in the body of the pipes. These corrugated perforated pipes are often used because of their high strength and resistance to bending due to external loads. A hole is formed. In the present invention, the waveform P.V.C hole tube is preferably used, but is not limited thereto.

The filtration means 10 formed wrapped around the outer surface of the perforated tube is formed in a felt shape by arranging the fibers in parallel or in an opposite direction without combining the woven fabric process and combining them with a synthetic resin adhesive. Preferably used. The nonwoven fabric has excellent water permeability and is easy to transport and install, and the large particles are not passed between the fibrous tissues so that the foreign substances contained in the groundwater in the present invention are introduced into the holes formed in the perforated pipes in the filtered state. Function as. Therefore, the groundwater filtered by the nonwoven fabric can be used as living water, and the groundwater meets the purpose of the present invention. The groundwater is discharged to the ground surface through a vertical drainage pipe connected to the external drainage pipe, and in the present invention, the nonwoven fabric is used as the filtering means. As it can be used as the filtering means, it is not limited to the nonwoven fabric as long as it can be easily attached to the perforated tube without a separate attachment device.

The connection of the inner, outer and vertical drainage pipes themselves, which are the perforated pipes with the filtration means, may be inserted at the connection portions of both perforated pipes having the same diameter when two or more perforated pipes need to be connected, as shown in FIG. 2A. The connection pipe 30 produced by cutting the hole tube having a predetermined diameter into a predetermined length is used. In the present invention, since the corrugated PVC perforated pipe is used as a drain pipe, the pipe can be easily manufactured by processing the perforated pipe having a predetermined dimension. The portion indicated by the dotted line in FIG. 2A is a filtering means such as a nonwoven fabric, and in other drawings, a dotted line is not shown in order to clearly indicate that the hole is a pipe. In the drawings and the specification, the hole may be filtered like a nonwoven fabric unless otherwise indicated. Indicates that the means are attached. In addition, as shown in Figure 2b by inserting the two perforated pipes 20 into the connecting pipe 30 so as to be connected to each other in the middle of the outline of the connection pipe, it is possible to install a number of perforated pipes without purchasing a separate connecting pipe to be. Figure 2c shows a state installed on the ground in a state in which a plurality of perforated pipes are connected. The use of perforated pipes with filtering means such as non-woven fabrics is used for the collection of groundwater, which is a common function in internal, external and vertical drainage pipes, but is distinguished by the drainage pipes depending on where they are embedded. That is, as shown in Figure 3a and 3b is installed beneath the bottom of the underground trench dig, the perforated pipe into which the groundwater flowing into the basement of the building flows is called the internal drainage pipe 100, the groundwater collected through the internal drainage pipe formed with a certain gradient Finally, the perforated pipes of various shapes, which are connected to the inner drain pipe to collect water and are buried outside the construction line G for the construction of the structure, that is, below the foundation breaker bottom surface, are called external drain pipes 200, Perforated pipes installed vertically on the external drain pipes may be divided into vertical drain pipes 300 so that the collected ground water is discharged to the ground surface and utilized. That is, the oil pipe 20 attached with the filtering means 10, such as the same non-woven fabric is used, but is divided into the three categories according to the installation location, function.

The inner drainage pipe 100 is installed by connecting a plurality of straight hole-shaped pipes in a lattice or straight shape. Figure 3a shows a case where the inner drain pipe is installed while forming a gradient in a straight line, Figure 3b shows a case where the inner drain pipe is installed while forming a gradient in a grid. The external drainage pipe 200 is connected to the inner drainage pipe on the outer side of the construction line of a structure such as a building, and thus, functions as a drainage pipe for collecting groundwater. 4 shows the specific example. That is, as shown in Figure 4a, the inner drain pipe is connected in three directions (A, B, C), the cross-shaped outer drain pipe 210 can be used to collect the groundwater in the remaining one direction (D) is mainly the outermost It is used to connect the internal drainage pipe installed between the internal drainage pipes. In addition, as shown in Figure 4b, the inner drain pipe is connected in two directions (A, B), the T-type outer drain pipe 220 may be used to collect ground water in the remaining one direction, which is mainly installed in the outermost inner drain pipe . In addition, as shown in Figure 4c, the internal drainage pipe is connected in one direction (A), and the straight external drainage pipe 230 may be used so that the groundwater is collected in the opposite direction (B), which is mainly used to directly discharge groundwater from each internal drainage pipe. It is used to lead to vertical drainage pipe. Furthermore, the cross-shaped, T-shaped and straight-shaped perforated pipes are used independently or in combination depending on the embedding position and structure of the internal drain pipe.

[Building underground drainage method using internal, external and vertical drainage pipes]

The structure underground drainage method of the present invention uses a means that can be used as living water by collecting ground water flowing from the bottom of the bottom of the foundation dig of the structure without installing a collecting well using the above-described internal, external and vertical drainage pipes. Providing excavation of ground to form a foundation trench bottom for a structure, and then leveling the foundation trench bottom horizontally; A drain pipe trench having a predetermined depth and width is disposed under the foundation trench bottom; Connecting a plurality of perforated pipes to each other in a space formed by the drain pipe breaker to form a plurality of internal drain pipes; An outer drain pipe, which is a perforated pipe manufactured in a predetermined shape, is connected to the inner drain pipe outside the bottom of the foundation trench; It includes installing a plurality of vertical drainage pipe which is a perforated pipe installed vertically from the outer drainage pipe to the ground surface. Hereinafter will be described in detail with reference to Figure 5 which is a flowchart of the building underground drainage method of the present invention.

In the structure underground drainage method of the present invention, first, as shown in (1) of FIG. . In this case, since the trench surface completed by the excavator is generally not processed horizontally, such as an uneven portion is formed, it is not easy to embed the internal drainage pipe in a state where a constant gradient is formed. Horizontally level the floor once with a machine or manpower, as shown in Figure 5 (2). After the horizontal smoothing is completed, a plurality of trenches 600 for embedding the inner drain pipe are formed in the lower portion of the bottom of the base trench as shown in FIG. 5 (3) (drain pipe trench), the width of the trench, Depth and shape are determined by considering the diameter, length, and groundwater inflow of the internal drain pipe. At this time, when forming the trench, the groundwater flowing in the buried inner buried pipe should be formed by giving a gradient to be collected at a predetermined position. This is determined by reference to the past status of groundwater drainage of streams or adjacent buildings around structures. It is natural that the number and direction of installation of the internal drainage pipe can be changed according to the area of the building to be constructed, the purpose of use, and the surrounding groundwater level. That is, in Figure 4 (4) shows a case where a plurality of internal drain pipe 100 is buried in a straight line at a predetermined interval, but may be buried in a grid if necessary, wherein the cross portion is the above-described connection pipe 30 is used. The plurality of inner drain pipes are embedded to extend to the outer portion of the bottom of the foundation trench, as shown in Figure 3a and 3b, wherein the inner drain pipe is a state in which the filtering means such as non-woven fabric is attached to the outer surface, and the embedded inner drain pipe and The gravel layer can be installed between the excavated trench space so that the groundwater can be easily introduced into the internal drainage pipe.

When a plurality of internal drainage pipes are embedded, a plurality of external drainage pipes 200 manufactured in various shapes so that the groundwater collected through the internal drainage pipes can be collected outside the construction line G of a structure such as a foundation trench bottom and a building. Each end of the installed inner drain pipe is installed as shown in Fig. 5 (5). At this time, the cross-type external drain pipe 210 as shown in FIG. 3a, the T-type external drain pipe 220 as shown in FIG. 3b, and the straight external drain pipe 230 as shown in FIG. The cross type external drain pipe is used to connect the internal drain pipes between the innermost inner drainage pipes, and the T type external drain pipe is used to connect the inner drainage pipes installed in the outermost part.In the case of the straight external drain pipe, each inner drain pipe is individually Used when connected to is as described above.

After installing a plurality of external drainage pipes of various shapes (cross, T-shaped and straight), and connected to each of the external drainage pipes, which are installed vertically to the construction ground (G) outer ground under the foundation trench bottom surface, such as buildings The vertical drainage pipe 300 is installed as shown in FIG. The vertical drainage pipe has a function of forming a space in which the groundwater collected by the external drainage pipe is filled to have a certain water level by the water pressure caused by the amount of water collected. Therefore, it is not necessary to separately install the sump used in the underground construction drainage method. That is, the external drainage pipe and the vertical drainage pipe play a role of the sump well in which the drainage pipe can be penetrated to the concrete cube or concrete cube. This will have the outside and the vertical drainage pipe is used because the air pipes can be groundwater treatment only by installing the pipes. At this time, the L-shaped connecting pipe 40 may be used to connect the external drain pipe and the resin drain pipe.

6 shows a change in the level of the groundwater flowing into the vertical drainage pipe. In other words, the groundwater flowing into the bottom of the underground trench is collected in the sump through the perforated pipe in the conventional case, and is connected to a separate rainwater pipe or a pipe connected to the river, so that the amount of groundwater drained is small or large. In many cases, the groundwater pressure occupied by the groundwater at the bottom of the foundation trench is drastically decreased with time. Therefore, ground subsidence occurs due to the decrease of the groundwater pressure supporting the base of the structure such as the building, and thus, even sedimentation occurs in the building, and micro cracks occur in the building. Defects occur, which ultimately lowers the durability of the concrete building, thereby acting to shorten the life of the building. This is the result of not using groundwater efficiently and using the method of draining groundwater unconditionally at the construction stage for dry construction. Therefore, the groundwater collected in the external drainage pipe and the vertical drainage pipe, as in the embodiment of the present invention, is not immediately discharged to the rainwater pipe or the river, and the groundwater is filled to the level of the E line of FIG. 6 at a constant level by atmospheric pressure in the vertical drainage pipe. By avoiding excessive discharge from the floor, the settlement of the lower part of the base of the building such as above does not occur, and when the groundwater is filled in the vertical drainage pipe to the F line which is above a certain level, such as the E line, the water level is detected. By using the sensor 700, the sensor detection device 800 and the submersible pump 900 to be discharged out of the surface of the earth can be used as living water (grass spraying, etc.) even if it is not used as drinking water and more efficient use of groundwater and Management is possible. The water level detecting sensor, the sensor detecting device and the submersible pump may use a conventional groundwater sensor, a sensor detecting device and a submersible pump. Since the vertical drainage pipe is connected to a plurality of external drainage pipes and is installed to the ground surface, the length and diameter of the vertical drainage pipe are determined by the depth of the bottom of the underground trench and the diameter of the external drainage pipe, and the number of installations is determined by the amount of groundwater. In addition, it is not necessary to install an automatic water level sensor and an automatic submersible pump for every vertical drainage pipe to be installed. Furthermore, without opening all of the vertical drainage pipes, some of them may be closed from the ground surface (using a stopper for the diameter of the vertical drainage pipe or permanently closed), and only some of them may be opened. With constant water pressure, groundwater can be used more efficiently if the required groundwater is discharged only through open vertical drainage pipes.

Looking at the discharge path of the groundwater through the inner, outer and vertical drainage pipes, the groundwater flowing from the bottom of the bottom of the underground trench is introduced into the inner drainage pipe while the foreign matter is filtered by a filtering means such as a nonwoven fabric via the inner drainage pipe. The groundwater collected by the external drainage pipe and filled in the vertical drainage pipe from the collected external drainage pipe is not discharged separately if it does not reach a certain level enough to be discharged separately. As it is discharged out of the ground, it is used as living water. Since the external drainage pipe and the vertical drainage pipe are also attached to filtration means such as nonwoven fabric, the external drainage pipe and the vertical drainage pipe may also be used as living water due to the inflow of groundwater.

After the installation of the internal, external and vertical drainage pipes as described above, the construction of a building such as a building is completed to finally complete the same structure as a desired building. Even if a lot of dissolution occurs, it is not necessary to have a separate drainage system, and dry work is possible in the construction of the building so that the air of the building construction is not affected by the groundwater.

The present invention can prevent ground subsidence beneath the bottom of the ground dig due to excessive groundwater discharge, can effectively utilize the ground water, and using only a perforated pipe without installing a separate collection basin for the ground water treatment underground ground dig bottom It is possible to collect and treat the groundwater collected in the lower part, which can reduce the cost of installation of the sump well, and the collected groundwater can be used as domestic water for the productive use of groundwater, which is easy to process and transport, and is an inexpensive construction material. By increasing the utilization efficiency of perforated pipes, drainage management provides more efficient structure underground drainage method.

Claims (8)

In the structure underground drainage method, Excavating the ground to form the foundation trench bottom surface for the structure, and then select the foundation trench bottom horizontally; A drain pipe trench having a predetermined depth and width is disposed under the foundation trench bottom; Connecting a plurality of perforated pipes to each other in a space formed by the drain pipe breaker to form a plurality of internal drain pipes; An outer drain pipe, which is a perforated pipe manufactured in a predetermined shape, is connected to the inner drain pipe outside the bottom of the foundation trench; Including the installation of a plurality of vertical drainage pipes that are vertically installed from the outer drainage pipe to the ground surface, characterized in that the groundwater flowing from the bottom of the bottom of the foundation breaker is collected by the external drainage pipe through the inner drainage pipe and drained Underground drainage method using perforated pipes The method of claim 1, wherein the outer drain pipe uses a cross-shaped hole, T-type hole, or straight hole tube. The method of claim 1 or 2, wherein the perforated pipe used as the inner drain pipe, the outer drain pipe and the vertical drain pipe is a structure underground drainage method using a perforated pipe, characterized in that the filtration means such as non-woven fabric is wrapped around the outer surface. The method of claim 1 or 2, wherein the internal drain pipe and the external drain pipe interconnection, characterized in that using the connection pipe formed by cutting a hole having a predetermined diameter can be inserted into the inner drain pipe and the outer drain pipe to a predetermined length Underground drainage method using perforated pipes. According to claim 1 or claim 2, Structure underground drainage method using a perforated pipe further characterized in that to further form a layer of water, such as rubble and gravel on the inner drain pipe. The method of claim 1, wherein the plurality of vertical drainage pipes are divided into drainage pipes that are installed to be closed below the ground surface and are not installed to the ground surface. The method of claim 6, wherein the vertical drainage pipe is installed without being closed to the ground surface underground drainage method using a perforated pipe, characterized in that the water pump is further installed therein. According to claim 6 and 7, wherein the water pump is installed in the vertical drainage pipe is equipped with a water level detection sensor and a sensor detection device, when the water filled in the vertical drainage pipe is above a certain level automatically operates the underwater pump to discharge the water to the outside Underground drainage method using a perforated pipe, characterized in that used as living water.