KR101434914B1 - Permanent drain system and construction method thereof - Google Patents

Abstract

The present invention relates to a subterranean permanent drainage system and a method of constructing the same. More specifically, the present invention relates to a subterranean permanent drainage system and a method of constructing the drainage system. The present invention relates to a subterranean permanent drainage system and a method of constructing the same.
To this end, the present invention provides a water treatment system comprising: a plurality of pipe tubes having a double piping structure in which an inner collector pipe and an outer collector pipe are integrally connected; A nonwoven fabric surrounding the outer surface of the tube; A muffler disposed between the mufflers to connect the muffler and the muffler to each other; A nonconductive induction pipe connected between the non-communicating pipe and the non-communicating pipe to perform a water sending function for sending water to the water collecting place; A water pipe having a non-porous structure, which is connected to the end of the induction pipe so as to communicate with the end of the induction pipe while being disposed on the side of the base construction reference surface, An earthquake-proof construction in which a construction volume is provided on a corner of a foundation construction reference plane to have a constant volume and the end of the water pipe is communicably connected; The present invention provides a subterranean permanent drainage system.

Description

[0001] Permanent drainage system and construction method [0002]

The present invention relates to a subterranean permanent drainage system and a method of constructing the same. More particularly, the present invention relates to a subterranean permanent drainage system and a method of constructing the same, And more particularly, to a subterranean permanent drainage system and a construction method thereof for improving drainage performance.

Generally, a construction site is excavated to a predetermined depth for the construction of various civil engineering and underground structures, and a civil engineering or building structure (hereinafter, referred to as " underground structure "Quot;) is constructed.

When groundwater and surface water are infiltrated into the basal construction reference surface, it acts on the underground structure (building) as positive pressure (vertical component water pressure acting in opposite direction of gravity) This is caused by the difference of the head caused by the groundwater around it and acts as a force for lifting the underground structure, which adversely affects the underground structure.

That is, if the positive pressure generated by the groundwater is larger than the static load (dead load + live load) of the underground structure, the underground structure may float or be tilted to one side, A crack may be generated in the slab area, and the underground structure may eventually be destroyed.

Therefore, the permanent drainage method is applied to eliminate the positive pressure caused by groundwater or surface water penetrating the foundation construction surface of the underground structure.

In the permanent drainage method, a water collecting and draining pipe is installed in the base construction reference plane, groundwater introduced into the water collecting and draining pipe is guided to a collecting facility, and the pressure applied to the underground structure is relieved through pressure drainage and gravity drainage .

As an example of a conventional permanent drainage method, Korean Unexamined Patent Application Publication No. 2005-0029332 discloses a method of installing a plate-type drainage material and a trench below a foundation floor, installing a pipe in a trench, collecting groundwater introduced into the building, A technique is disclosed in which the positive pressure is removed by pumping.

As another example of the conventional permanent drainage method, Korean Unexamined Patent Application Publication No. 2007-0039337 includes a pore pipe having a large number of inflow holes formed therein to allow groundwater to be introduced into the ground and a groundwater collection unit for collecting groundwater collected from the pore pipe A permanent drainage system is proposed.

However, the above-mentioned conventional permanent drainage method suffers from the disadvantage that it requires a large construction cost because only a pipe having a high processing and production cost is used.

That is, since a plurality of water collecting holes for collecting water must be formed in a structure in which the water collecting holes are cut or pierced, the cost of manufacturing and manufacturing the water collecting pipe is high and the overall construction cost is increased.

Further, when the base construction reference plane is formed of a rock or a sand layer, there is no clogging of the water collecting hole of the pipe, and even when the pipe is wrapped with a nonwoven fabric, the water absorbing function of the nonwoven fabric is properly exhibited. However, There is a disadvantage in that the water collecting hole of the pore tube is blocked by mud and the like.

In addition, the collecting connection connected to the pipe tube is installed at a predetermined position of the foundation construction reference surface. However, since the number of collecting water is excessively increased, the collecting effect can be increased. However, There is a problem that construction is done.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems of the prior art, and it is an object of the present invention to provide a water pipe having a water collecting function and a low- The present invention is to provide a subterranean permanent drainage system that can reduce the construction cost of the entire permanent drainage system by making it possible to reduce the number of batches and the number of construction works.

It is another object of the present invention to provide a new improved pipe structure in the form of a double pipe so that the pipe can be stably mounted on a base construction reference surface, thereby preventing the pipe from being clogged by fluidized soil such as mud.

It is a further object of the present invention to provide a nonwoven fabric in which a porous layer is wrapped with a nonwoven fabric and a coating layer capable of filtering fine tessellation is formed on the bottom surface of the nonwoven fabric so that the nonwoven fabric in a new state is contaminated with fine tessellation (mud, So that the phenomenon of loss of the absorption function can be prevented.

In order to achieve the above object, an embodiment of the present invention is characterized by comprising: a plurality of pipe tubes having a double piping structure in which an inner collector pipe and an outer collector pipe are integrally connected; A nonwoven fabric surrounding the outer surface of the tube; A muffler disposed between the mufflers to connect the muffler and the muffler to each other; A nonconductive induction pipe connected between the non-communicating pipe and the non-communicating pipe to perform a water sending function for sending water to the water collecting place; A water pipe having a non-porous structure, which is connected to the end of the induction pipe so as to communicate with the end of the induction pipe while being disposed on the side of the base construction reference surface, An earthquake-proof construction in which a construction volume is provided on a corner of a foundation construction reference plane to have a constant volume and the end of the water pipe is communicably connected; The present invention provides a subterranean permanent drainage system.

According to an embodiment of the present invention, the pipe tube has a structure in which a plurality of internal water passageways are equally spaced along the circumferential direction and are cut along the longitudinal direction, and have an inner support end forming a circumferential end between the respective inner water passageways, An inner collecting pipe connected to an inner surface of each inner supporting end and having an inner connecting end integrally joined together at an inner end thereof at a central position; A plurality of external water passageways are equally spaced apart along the circumferential direction and are cut along the longitudinal direction, and the external end of the external support end is connected to the inner surface of each external support end, An outer collecting pipe having an outer connecting end which is connected to the inner end of the inner connecting end through the inner water inlet; Wherein the inner supporting tube and the outer supporting tube of the outer tube are staggered from each other in the radial direction so that the inner supporting tube of the inner tube is aligned with the outer tube of the outer tube, And is exposed to the outside through a water inlet.

Preferably, the diameter of the outer collecting pipe of the pore tube, the diameter of the non-porous pipe and the induction pipe is 40 to 60 mm, and the diameter of the water pipe is 80 to 120 mm.

Particularly, the bottom surface of the nonwoven fabric surrounding the outer surface of the porous tube is coated with a sealing material containing vinyl, silicone, or epoxy resin, or a film having a fine mesh structure passing only water particles.

The collector is made of a box-like structure using PC concrete, and a support end is integrally formed on an upper edge portion so that the end of the water pipe can be supported.

According to another aspect of the present invention, there is provided a method of manufacturing a plasma display panel, comprising: connecting a plurality of pipe structures having a double piping structure in which an inner collector pipe and an outer collector pipe are integrally connected through a non- Arranging a plurality of pores and non-pores connected to each other on a basal construction reference plane at equal intervals in a lateral direction; Arranging a plurality of induction tubes having a non-airtight structure in a longitudinal direction while connecting the induction tubes to a non-hollow tube arranged in a lateral direction; Arranging the water pipe having a larger diameter than the hollow pipe and the guide pipe in the non-hollow structure, on both sides of the base construction reference plane while connecting the pipe with the guide pipe; Using PC concrete to connect the ends of the water pipe to the water pipe while communicating with the water pipe at the both corners of the base construction reference plane; The present invention provides a method of constructing a subterranean permanent drainage system.

In another embodiment of the present invention, the length of the pipe is 4 m and the length of the pipe is 2 m, and the pipe is connected to the pipe through the pipe.

In particular, the method may further include the step of wrapping the outer surface of the pipe tube with a nonwoven fabric coated on the bottom surface with a coating layer that allows only water particles to pass through.

Through the above-mentioned means for solving the problems, the present invention provides the following effects.

According to the present invention, it is possible to reduce the parts and materials cost by alternately connecting the pore pipe serving as the water collecting function and the non-pipe having low cost and discharging function.

In addition, by arranging a large-diameter water pipe supporting the water collecting function on the side of the base construction reference plane by using a non-porous induction pipe in a non-hollow pipe connecting the pipe pipes, And the construction cost can be reduced.

In addition, the present invention provides a new pipe tube having internal and external support ends to provide a new double pipe structure. When the fluidized soil such as mud is present on the base construction reference surface, the inner support end blocks the fluid soil, So that the phenomenon of clogging of the pipe can be prevented.

Further, by forming a coating layer which is wrapped with a nonwoven fabric and is capable of filtering fine soil on the bottom surface of the nonwoven fabric, the new state of the nonwoven fabric is contaminated with fine soil (mud, mud, etc.) So that the phenomenon of loss of the water absorption function can be prevented.

1 and 2 are a perspective view and a cross-sectional view illustrating a pillar of a subterranean permanent drainage system according to an embodiment of the present invention,
FIG. 3 is a side view of a pore of a subterranean permanent drainage system according to an embodiment of the present invention,
FIG. 4 is a cross-sectional perspective view showing the collecting structure of the underground permanent drainage system according to the present invention,
FIG. 5 is a cross-sectional view illustrating a state in which a pipe of a subterranean permanent drainage system according to an embodiment of the present invention is wrapped by a nonwoven fabric,
6 and 7 are a perspective view and a plan view illustrating a construction state of the underground permanent drainage system according to the present invention,
FIG. 8 is a cross-sectional view showing a construction in which a pipe of a subterranean permanent drainage system according to an embodiment of the present invention is disposed without being wrapped with a nonwoven fabric,
FIG. 9 and FIG. 10 are a perspective view and a cross-sectional view illustrating a pillar of a subterranean permanent drainage system according to another embodiment of the present invention,
FIG. 11 is a side view showing a structure in which a pore of a subterranean permanent drainage system according to another embodiment of the present invention is connected to a non-porous pipe;
FIG. 12 is a cross-sectional view illustrating a construction in which a pipe of a subterranean permanent drainage system according to another embodiment of the present invention is disposed without being wrapped with a nonwoven fabric. FIG.

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

The main feature of the present invention is that the construction cost of the entire permanent drainage system can be greatly reduced by alternately connecting the water pipe having the water collecting function and the non-water pipe having the low cost and the drainage function.

For this, according to one embodiment of the present invention, as shown in FIGS. 1 and 2, the inner collecting pipe 110 and the outer collecting pipe 120 are integrally connected to form a double piping structure, 3, the perforated pipe 100 is connected to the non-perforated pipe 140 serving as a drain and a socket, so that a plurality of the perforated pipe 100 can pass through the non-perforated pipe 140 So that they are connected to each other.

The pipe 100 includes an inner collector pipe 110 having an inner outlet 112 for collecting water and an outer collector pipe 120 having a larger diameter than the inner collector pipe 100 and having an outer outlet 122 ) Are integrally connected to each other.

The inner collecting pipe 110 of the cylindrical pipe 100 has a plurality of inner supporting ends 114 forming a cylindrical locus in which the inner circulating holes 112 are formed to pass therethrough and the outer ends of the inner supporting pipes 114 are integrally formed And an inner connection end 116 integrally connected to the inner ends thereof at the center thereof.

More specifically, the inner support tube 114 of the inner collector pipe 110 has a cylindrical locus, and has a plurality of inner water passageways 112 formed at equal intervals along the circumferential direction and being cut along the longitudinal direction. And is formed as a circumferential edge portion between the internal water supply ports 112.

The external water collecting pipe 120 of the pipe tube 100 has a plurality of external supporting ends 124 forming a cylindrical locus in which the external water inlet 122 is formed to pass therethrough, And an outer connecting end 126 integrally connected to the inner end of the inner connection pipe 116 and the inner end of the inner connection pipe 116 through the inner pipe 112 of the inner collector pipe 110.

More specifically, the external support end 124 of the external collector pipe 120 has a cylindrical locus and a plurality of external water passageways 122 are formed along the circumferential direction at regular intervals along the longitudinal direction. And becomes a part of the circumferential end between the external water supply ports 122.

At this time, since the inner support tube 114 of the inner collector tube 110 and the outer support ends 124 of the outer collector tube 120 are arranged to be shifted from each other along the radial direction, The inner support tube 114 of the water collector 122 and the inner collector tube 110 are aligned with each other along the radial direction and at the same time the outer support tube 124 of the outer collector tube 120 and the inner tube of the inner collector tube 110 A state in which the inner supporting tube 114 of the inner collector pipe 110 is exposed to the outside through the outer tube 122 of the outer collector tube 120 do.

Meanwhile, the non-hollow pipe 140 is provided as a general sealed pipe.

The diameter of the outer collecting pipe 120 of the perforated pipe 100 and the diameter of the non-porous pipe 140 are about 40 to 60 mm. By means of conventional joining means such as welding or bolting using a bracket, The four-meter-length pipe 100 and the two-meter-length non-hollow pipe 140, which are collectively connected to each other, are alternately connected to each other.

Preferably, the length of the non-hollow pipe 140 having drainage function for connecting the four-meter-length pipe 100 having the water collecting function to each other while acting as a socket is not limited to 2 m, but may be changed depending on the length of the pipe Of course, be variable.

At this time, as shown in FIG. 5, a nonwoven fabric 130 is wrapped around the outer surface of the tube 100 to block the entry of foreign matter into the tube 100.

Preferably, the nonwoven fabric 130 absorbs groundwater and absorbs water such as ground water to be introduced into the porous pipe 100, and mud (for example, mud) or the like The coating layer 132 is coated on the bottom surface so as not to contaminate the nonwoven fabric 130.

More specifically, a coating layer 132 is formed on the bottom surface of the nonwoven fabric 130 by using a sealing material such as vinyl, silicone, epoxy resin, or the like, or a film having a fine mesh structure, The non-woven fabric 130 can be prevented from penetrating and absorbing fine particles such as mud into the nonwoven fabric 130. As a result, the nonwoven fabric 130 is contaminated by fine particles such as clay, Can be easily prevented.

Meanwhile, as shown in FIGS. 6 and 7, in the state where the water pipe 100 and the drain pipe 140 are arranged at regular intervals along one direction on the base construction reference plane, A guide tube 150 having a diameter of about 40 to 60 mm and having a non-porous structure is connected between the cavity tube 140 and the cavity tube 140. The induction tube 150 drains the water collected in the cavity tube 100 And a water supply function of receiving water from the non-communicating pipe 140 and sending the water to the water collecting place.

In particular, on both sides of the foundation construction reference plane 200, a non-porous water pipe 160 communicably connected to the ends of the guide pipes 150 is connected. The water pipe 160 has a function of collecting water The inner space is adopted to have a diameter of about 80 to 120 mm which is larger than that of the non-hollow pipe 140 and the induction pipe 150.

As shown in FIG. 4, the water supply pipe 160 is provided at one corner of the diagonal direction of the base construction reference plane 200, that is, at one end of the water pipe 160, a housing having a predetermined volume for collecting water, The crystal 170 is placed and placed.

Preferably, the water collecting pipe 170, which is connected to one end of the water pipe 160 so as to communicate with the water pipe 160, is constructed in a box-like structure using PC concrete, 160 are formed integrally with each other so as to be able to support and support one end of the same.

Meanwhile, several check ports (not shown) for flashing and maintenance are installed at intervals of 50 to 80 mm at the end of the water pipe 160 of the non-tubular shape, that is, .

Further, a groundwater level meter 162 may be further connected to the specific location of the perforated pipe 100 or the non-perforated pipe 140 to allow positive pressure to be confirmed, and an overflow function can be performed by applying an artificial pressure when clogging occurs.

Hereinafter, referring to FIG. 9 to FIG. 12, which is a perspective view of a pipe structure of a subterranean permanent drainage system according to another embodiment of the present invention and a construction thereof, will be described.

The pore tube 100 according to another embodiment of the present invention mainly has a collecting function, and is composed of two or three vertical drain plates 180 having an I-shaped section and spaced apart in the horizontal direction, And a single horizontal drain plate 182 integrally connected to each of the vertical drain plates 180 across the horizontal direction so as to form a trajectory of a rectangular cross section as a whole.

In particular, six or eight water collecting spaces 184 are formed by being partitioned by the respective vertical water draining boards 180 and the horizontal water draining boards 182 so as to communicate with the outside.

The perforated pipe 100 according to another exemplary embodiment of the present invention is also connected to the non-woven fabric 130 (see FIG. 1), which is connected to each other by a non-porous pipe 186 having a rectangular cross- ).

In addition, the guide pipe 150 has a diameter larger than that of the induction pipe 150 so as to have a water collecting function and serves as a water supply function to send water to the water collecting place, The structure of the water pipe 160 and the water collecting pipe 170 in which the ends of the water pipe 160 are communicably connected are constructed as in the above embodiment.

Hereinafter, a construction method and a drainage flow operation of the underground permanent drainage system of the present invention having the above-described structure will be described with reference to FIG. 6 and FIG. 7 while focusing on a pore pipe according to one embodiment.

First, an excavation work is performed to construct a subterranean portion of a civil engineering or building structure, and a ground surface on which the excavation work is completed, that is, a basic construction reference plane 200, is preceded.

Next, the perforated pipe 100 and the non-perforated pipe 130 are alternately connected to each other at regular intervals along the lateral direction according to the design layout standard of the basic construction reference plane 200 as described above.

In this case, when the soil of the foundation construction reference surface 200 is made of rock, gravel, coarse sand, etc., it is not necessary to cover the bottom of the pipe 100 with the nonwoven fabric 130 because rocks, gravel, Even if the rock, the gravel and the coarse sand enter into the inside through the outer water inlet 122 of the outer collecting pipe 120 of the pore tube 100, As shown in FIG. 8, the inner support port 112 and the outer tapper port 122 are not blocked because the inner support end 114 is blocked.

On the other hand, when the soil of the foundation construction reference plane 200 is like mud existing in the mud, it is preferable that the surface of the pipe 100 is covered with the nonwoven fabric 130 having the coating layer 132 formed thereon as described above Therefore, it is possible to block the penetration and absorption of fine particles such as clay into the nonwoven fabric 130 at the coating layer, and as a result, the essential function of the nonwoven fabric, that is, the basic function of absorbing water, can be easily prevented from being lost.

Next, the induction pipe 150 having a non-porous structure for guiding the water drained from the non-communicating pipe 130 to the collecting place is provided and connected between the non-communicating pipes 130 arranged in the transverse direction. Are vertically aligned with the hollow body 130 and are arranged in the longitudinal direction.

The water pipe 160 having a larger diameter than the non-hollow pipe 130 and the induction pipe 150, preferably having a diameter of 80 to 120 mm, is connected to the induction pipe 150, And the water pipe 160 is arranged in the lateral direction on both sides of the base construction reference plane 200. In this case,

At the same time, the end of the water pipe 160 is connected to the water collecting pipe 170 so that the water collecting pipe 170 is installed at both corners of the foundation construction reference surface 200 to be.

Therefore, when water such as ground water flowing through the foundation construction reference surface 200 enters the inside of the pipe 100 or the nonwoven fabric 130 is wrapped, water absorbed from the nonwoven fabric 130 flows into the pipe 100 As shown in FIG.

The water collected in the inner pipe 112 of the inner collecting pipe 110 and the outer pipe 122 of the outer collecting pipe 120 is drained through the muffler 140 ).

The water is guided to the induction pipe 150 connected to the non-communicating pipe 140 and then flows to the water pipe 160 so that the water in the non-communicating pipe 140 140 and the guide pipe 150 having a larger diameter than the guide pipe 150 will exhibit some collecting function.

Finally, as some of the water collected by the water pipe 160 is repeated, the collected water collects in the water collecting unit 170.

In this way, the water collecting function of the water collecting function including the large-diameter water pipe for collecting water is provided to the side of the basic construction reference plane by alternately connecting the water pipe having the collecting function with the low- The connection cost can be greatly reduced and the water collecting and drainage functions can be made smoothly despite the reduction of the construction cost.

On the other hand, since the porosity pipe 100 is coated with a fragrance material having a sterilizing function, it functions to sterilize and purify groundwater to prevent environmental pollution.

The functional oil may be mixed with 95 to 97% by weight of a perfume, 3 to 5% by weight of a functional oil, 30% by weight of time, 25% by weight of palmarosa, 25% by weight of oligo, and 20% by weight of juniper.

It is preferable that the functional oil is mixed in an amount of 3 to 5% by weight based on the perfume. If the mixing ratio of the functional oil is less than 3 wt%, the effect is insignificant. If the mixing ratio of the functional oil exceeds 5 wt%, the function is not greatly improved, but the manufacturing cost is greatly increased.

These fragrance materials play a role in making environmentally friendly use of the sterilizing action of groundwater.

Thyme in the functional oil is native to the Mediterranean. Thymol and carvacrol account for 60% of the total chemical composition. They are excellent in sterilization and insecticidal action.

Palmarosa (Palmarosa), such as lemon grass and citronella, is widely grown in Africa, South America and elsewhere. Detoxification effect and strong sterilization effect.

Patchouli is mainly composed of patchoulene, eugenol, etc. It has excellent insecticidal and bactericidal action.

Juniper (Juniper) is the main chemical components, such as alpha pinene, cadinene, camphene, terpineol, and is excellent in detoxification, sterilization, insecticidal effect.

Since the perfume material having the sterilizing function is coated on the perforated pipe 100, the groundwater is purified and sterilized to prevent environmental pollution.

In addition, in the pipe tube 100 of the present invention, 44 to 57% by weight of crystalline polypropylene, 9 to 21% by weight of an ethylene butyl acrylate polymer, 7 to 25% by weight of a styrene type hydrogenated block copolymer, 10 to 23% by weight of the polypropylene resin composition can be applied.

Here, the crystalline polypropylene includes at least one selected from a crystalline polypropylene homopolymer and a propylene-alpha olefin crystalline copolymer containing C2 to C20 (exclusive of C3) alpha olefins, and the crystalline polypropylene The melt flow index (230 DEG C, load of 2.16 kg) is 20 to 60 g / 10 min, and the isotactic peptid fraction measured by 13 C-NMR (nuclear magnetic resonance spectrum) is 0.80 to 0.99.

Also, the content of butyl acrylate in the ethylene butyl acrylate polymer is 20 to 40% by weight and the melt index (190 ° C, 2.16 kg load) is 20 to 200 g / 10 min.

In the styrene-based hydrogenated block copolymer, the styrene content is 18% by weight or more. The styrene-based hydrogenated block copolymer is a styrene-ethylene-butene-styrene block copolymer (SEBS), a styrene-ethylene-propylene-styrene block copolymer SEPS), styrene-butadiene-butylene-styrene block copolymer, styrene-ethylene-isoprene-styrene block copolymer and acrylonitrile-butylene-styrene block copolymer.

The polypropylene resin composition will be described in detail as follows.

First, the polypropylene resin composition may include a crystalline polypropylene, an ethylene butyl acrylate polymer, a styrene-based hydrogenated block copolymer and an inorganic filler as described above.

The crystalline polypropylene may include at least one selected from a crystalline polypropylene homopolymer and a propylene-alpha-olefin crystalline copolymer comprising C2 to C20 (excluding C3) alpha-olefin monomers.

Specific examples of the alpha-olefin monomers may be ethylene, 1-butene, 1-pentene, 1-hexene, 4-methylpentene, 1-heptene, 1-octene and 1-decene and preferably ethylene. The propylene-alpha olefin crystalline copolymer may be a block copolymer or a random copolymer, but is not limited thereto.

The content of the polymerization unit of propylene in the propylene-alpha-olefin crystalline copolymer is not particularly limited, but is preferably 50 wt% or more in the copolymer.

The crystalline polypropylene is not particularly limited in terms of stereoregularity, but any crystalline polypropylene that can achieve the object of the present invention can be used without limitation, and more specifically, ¹³ C-NMR (nuclear magnetic resonance spectrum) The isotactic peptad fraction may be 0.80 to 0.99, preferably 0.85 to 0.99.

The melt flow index (MFI, 230 ° C, 2.16 kg load) of the crystalline polypropylene may be 20 to 60 g / 10 min, preferably 20 to 50 g / 10 min.

The crystalline polypropylene may be contained in an amount of 44 to 57% by weight based on the resin composition. If the content of the crystalline polypropylene is less than 44% by weight, the coating adhesion may be deteriorated. If the content of the crystalline polypropylene is more than 57% by weight, the flexural modulus and the coating adhesion may be lowered.

The ethylene butyl acrylate polymer will be described as follows.

The butyl acrylate in the ethylene butyl acrylate polymer may be contained in an amount of 20 to 40% by weight, preferably 25 to 40% by weight, based on the weight of the polymerized units.

The ethylene butyl acrylate polymer may be contained in an amount of 9 to 21% by weight based on the polypropylene resin composition. If the content of the ethylene butyl acrylate polymer is less than 9% by weight, the coating adhesion is poor, and if the content exceeds 21% by weight, the flexural modulus may be significantly reduced.

The melt index (190 ° C, 2.16 kg load) of the ethylene butyl acrylate copolymer may be 5 to 250 g / 10 min, preferably 10 to 200 g / 10 min.

The styrene-based hydrogenated block copolymer can further improve the paint adhesion and impact resistance of the polypropylene resin composition.

The styrene-based hydrogenated block copolymer may be selected from the group consisting of styrene-ethylene-butene-styrene block copolymer (SEBS), styrene-ethylene-propylene-styrene block copolymer (SEPS), styrene-butadiene- Ethylene-butene-styrene block copolymer (SEBS) and styrene-ethylene-butylene-styrene block copolymer, ethylene-isoprene-styrene block copolymer and acrylonitrile- -Propylene-styrene block copolymer (SEPS).

The styrene-based hydrogenated block copolymer may be contained in an amount of 7 to 21% by weight, preferably 10 to 18% by weight, based on the polypropylene resin composition. When the content of the styrene-based hydrogenated block copolymer is less than 7% by weight, the coating adhesion is decreased. When the content of the styrene-based hydrogenated block copolymer is more than 21% by weight, mechanical properties such as rigidity and coating adhesion may be lowered.

The inorganic filler may be used to reinforce the rigidity of the polypropylene resin composition, and the inorganic filler may be at least one selected from the group consisting of talc, barium sulfate, and calcium carbonate, preferably talc.

The particle size of the talc can be determined from the grain size of 50% by weight accumulated from the particle cumulative distribution curve measured according to the laser diffraction method, and the average particle size can be 10 탆 or less, preferably 0.5 to 8 탆. If the particle diameter of the talc is out of the above range, the flexural modulus may be lowered, which is not preferable.

The talc may contain various organic titanate-based coupling agents, organic silane coupling agents, unsaturated carboxylic acids, or anhydrides thereof in order to improve the adhesiveness or dispersibility with the polymer. Grafted polyolefins, fatty acids, fatty acid metal salts, fatty acid esters, and the like.

The inorganic filler may be contained in an amount of 10 to 23% by weight, preferably 10 to 21% by weight, based on the polypropylene resin composition. If the content of the inorganic filler is less than 10% by weight, the flexural modulus may be insufficient or the coating adhesion may be deteriorated. If the content of the inorganic filler is more than 23% by weight, the impact resistance may be deteriorated.

The polypropylene resin composition according to the present invention may further comprise a rubber component in order to further improve the paintability or to reinforce the low-temperature impact resistance. The rubber component may further comprise an ethylene-alpha-olefin copolymer or an ethylene-alpha-olefin elastomer rubber, and the alpha-olefin may be a C2 to C20 alpha-olefin, Ethylene-1-butene copolymer.

The polypropylene resin composition according to the present invention is excellent in paint adhesion, flexural modulus and Izod impact strength without application of a primer at the time of coating, so that it is possible to prevent breakage of the tube 100 at the time of application to the tube 100, Thereby preventing the painted paint from peeling off.

100: Pipe pipe 110: Inner collector pipe
112: inner feed port 114: inner support end
116: internal connection terminal 120: external collector pipe
122: External water outlet 124: External support
126: External connection 130: Nonwoven
132: Coating layer 140:
150: induction pipe 160: water pipe
162: Groundwater level 170: House correction
172: Supporting stage 180: Vertical drainage plate
182: Horizontal drain plate 184: Collecting space
186: Non-embankment 200: Basic construction reference plane

Claims (10)

A plurality of pipe tubes 100 having a double piping structure in which the inner collector pipe 110 and the outer collector pipe 120 are integrally connected;
A nonwoven fabric 130 surrounding the outer surface of the porous tube 100;
A muffler 140 having a drain function for alternately connecting the tube 100 and the tube 100 while alternating with the tube 100;
A nonconductive induction pipe 150 connected between the non-communicating pipe 140 and the non-communicating pipe 140 so as to perform a water feeding function of sending water to the collecting place;
And is connected to the end of the induction pipe 150 so as to be communicated with the end of the induction pipe 150 while being disposed on the side of the base construction reference plane 200 and having a larger diameter than the non-hollow pipe 140 and the induction pipe 150, A water supply pipe 160 of the water pump 160;
And a collecting fin (170) constructed and arranged to have a constant volume at a corner of the foundation construction reference plane (200) and the end of the water pipe (160) communicably connected thereto;
The perforated pipe (100)
A plurality of internal passageways 112 are formed at equal intervals along the circumferential direction and are cut along the longitudinal direction, and have an inner support end 114 forming a circumferential end between the respective internal passageways 112, An inner collecting pipe 110 connected to an inner surface of the inner supporting end 114 and having an inner connecting end 116 integrally joined together at an inner end thereof at a central position;
An outer supporting end 124 forming a circumferential end between each of the outflow openings 122 and having a plurality of outer openings 122 formed at equal intervals along the circumferential direction along the longitudinal direction, And an outer collector pipe 120 connected to the inner surface of the outer supporting end 124 and having an outer connecting end 126 which is connected to the inner end of the inner connecting end 116 through the inner water outlet 112, ≪ / RTI >
The inner support tube 114 of the inner collector tube 110 and the outer support tube 124 of the outer collector tube 120 are arranged to be offset from each other along the radial direction so that the inner support tube 114 Is aligned with the outer tap 122 of the outer tap water pipe 120 and is exposed to the outside through the outer tap 122;
The diameters of the outer collecting pipe 120 and the diameters of the hollow pipe 140 and the induction pipe 150 are 40 to 60 mm and the diameter of the water pipe 160 is 80 to 120 mm Adopted;
A coating layer 132 coated with a sealing material including vinyl, silicone, and epoxy resin is formed on the bottom surface of the nonwoven fabric 130 surrounding the outer surface of the tube 100, or a film having a fine mesh structure passing only water particles A coated coating layer 132 is formed;
The collector (170) is made of a box-like structure using PC concrete, and has a support end (172) integrally formed at an upper edge portion so that the end of the water pipe (160) can be supported.
The perfume pipe 100 is coated with a perfume material mixed with a functional oil. The perfume 100 is mixed with 95 to 97% by weight of a perfume and 3 to 5% by weight of a functional oil. The perfume oil contains 30% by weight of time, 25% by weight of palmarosa, 25 wt%, and 20 wt% of Juniper.
delete delete delete delete delete delete delete delete A plurality of pipe tubes 100 having a double piping structure in which the inner collector pipe 110 and the outer collector pipe 120 are integrally connected;
A nonwoven fabric 130 surrounding the outer surface of the porous tube 100;
A muffler 140 having a drain function for alternately connecting the tube 100 and the tube 100 while alternating with the tube 100;
A nonconductive induction pipe 150 connected between the non-communicating pipe 140 and the non-communicating pipe 140 so as to perform a water feeding function of sending water to the collecting place;
And is connected to the end of the induction pipe 150 so as to be communicated with the end of the induction pipe 150 while being disposed on the side of the base construction reference plane 200 and having a larger diameter than the non-hollow pipe 140 and the induction pipe 150, A water supply pipe 160 of the water pump 160;
And a collecting fin (170) constructed and arranged to have a constant volume at a corner of the foundation construction reference plane (200) and the end of the water pipe (160) communicably connected thereto;
The perforated pipe (100)
A plurality of internal passageways 112 are formed at equal intervals along the circumferential direction and are cut along the longitudinal direction, and have an inner support end 114 forming a circumferential end between the respective internal passageways 112, An inner collecting pipe 110 connected to an inner surface of the inner supporting end 114 and having an inner connecting end 116 integrally joined together at an inner end thereof at a central position;
An outer supporting end 124 forming a circumferential end between each of the outflow openings 122 and having a plurality of outer openings 122 formed at equal intervals along the circumferential direction along the longitudinal direction, And an outer collector pipe 120 connected to the inner surface of the outer supporting end 124 and having an outer connecting end 126 which is connected to the inner end of the inner connecting end 116 through the inner water outlet 112, ≪ / RTI >
The inner support tube 114 of the inner collector tube 110 and the outer support tube 124 of the outer collector tube 120 are arranged to be offset from each other along the radial direction so that the inner support tube 114 Is aligned with the outer tap 122 of the outer tap water pipe 120 and is exposed to the outside through the outer tap 122;
The diameters of the outer collecting pipe 120 and the diameters of the hollow pipe 140 and the induction pipe 150 are 40 to 60 mm and the diameter of the water pipe 160 is 80 to 120 mm Adopted;
A coating layer 132 coated with a sealing material including vinyl, silicone, and epoxy resin is formed on the bottom surface of the nonwoven fabric 130 surrounding the outer surface of the tube 100, or a film having a fine mesh structure passing only water particles A coated coating layer 132 is formed;
The collector (170) is made of a box-like structure using PC concrete, and has a support end (172) integrally formed at an upper edge portion so that the end of the water pipe (160) can be supported.
The porosity of the porous tube 100 is preferably in the range of 44 to 57% by weight of crystalline polypropylene, 9 to 21% by weight of ethylene butyl acrylate polymer, 7 to 25% by weight of styrene type hydrogenated block copolymer and 10 to 23% Wherein the polypropylene resin composition is applied to the underground permanent drainage system.

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