JP3295176B2 - Collection / drainage member, underground drainage structure and construction method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a drainage part for collecting and draining underground water to prevent an increase in earth pressure inside a retaining wall.
Wood, the collecting water draining structure composed of drain member and a process for construction of the draining structure.

[0002]

2. Description of the Related Art Conventionally, as the drainage structure, a drainage pipe having a large number of drainage holes formed in a peripheral wall is driven into the ground to be buried by being inclined, or a formation excavation portion (formed by excavating a formation). The drainage pipe is laid in the recessed part), and crushed stones
It is known that the collection and drainage pipes are filled with rubble stone, fiber composite material or the like and subjected to point pressure finishing.

[0003]

However, in the above-mentioned drainage pipe, silt, earth and sand, etc., in which the drainage holes form a stratum (hereinafter, referred to as "salt and drain").
These are collectively referred to as silt), which easily causes clogging, and there is a problem that the water collecting function is reduced in a short period of time. Further, in the case of the above-mentioned crushed stone or the like filled, silt or the like is easily clogged in the gap between the fillers such as the crushed stone and the like, and the water collecting function of the packed layer deteriorates in a short period of time, so that water hardly flows into the collecting and draining pipe, As the earth pressure increases, the packed bed changes into a plate-like shape and stops the flow of water, so that not only does the collecting and draining function gradually decrease, but also the packed bed does not function as a buffer layer. Furthermore, recently, the supply amount of crushed stone has been reduced, and the crushed stone has a large specific gravity, so that there is a problem that the filling operation is troublesome.

The present invention has been made to solve the above problems, and a first object of the present invention is to provide a collecting and draining section having an excellent collecting and draining function.
To provide materials . A second object of the present invention, this
An object of the present invention is to provide a drainage structure configured by using a collection / drainage member . A third object of the present invention is to provide a simple drainage structure.
It is to provide a simple construction method .

Next, the structure and operation of the present invention will be described with reference to the accompanying drawings.
The explanation will be made by adding the reference numerals written on the surface.
The numbers are intended only to assist in understanding the invention.
Therefore, the technology of the present invention is
Of course, the scope is not limited.
You.

[0006]

The first object is achieved.
Therefore, the invention according to claim 1 folds at the center in the longitudinal direction.
It has a curved shape and the longitudinal cross-sectional shape by the surface along the longitudinal direction is
A collection / drainage pipe 11 composed of a substantially V-shaped short pipe;
A water collecting / filtering member 71 filled in the pipe,
The pipe has an upper wall 37, a lower wall 40, and a surface extending in the longitudinal direction of the short pipe.
A first side wall 33 along the direction and facing the first side wall 33
The second side wall 51 forms a plane perpendicular to the longitudinal direction.
The cross-sectional shape is rectangular and water passages are formed at both ends in the longitudinal direction.
The upper wall 37 and the central bent portion
Forms a first water collecting hole 38, and the first side wall 33 has
By connecting and communicating the drain pipe 21 sideways,
A drainage pipe 11 is formed, and the second side wall 51 has a second
A water collecting hole 52 is formed, and the water passage is formed at both ends in the longitudinal direction.
The openings are completely opened to form openings 35 and 36.
The water collecting / filtering member 71 is made of a lightweight aggregate 73.
It is characterized by being constituted by being covered with a porous sheet material.
Collection and drainage members.

[0007] The invention according to claim 2 is the invention according to claim 1.
The mountain-shaped plate 22 is provided directly above the first water collecting hole 38.
Of the plate 22 and the upper wall of the central bent portion.
A water collecting and draining member having a water slit 39 formed therein.
It is.

[0008] The invention according to claim 3 is the invention according to claim 2.
The short pipe constituting the drainage pipe 11 is connected to the first side.
While the outer surface of the wall 33 is used as a fixing surface to the back surface of the retaining wall 81,
A drain hole communicating with the drain pipe 21 is provided in the first side wall 33.
And a drainage and drainage member.

[0009] The invention described in claim 4 is the first or second invention.
Other in 3, said current drain pipe 11 are those made of hard polyvinyl chloride, the porous sheet material is a nonwoven fabric, with current drain member, wherein the lightweight aggregate 73 is pearlite is there.

[0010] In order to achieve the second object, a semiconductor device according to claim 5 is provided.
The disclosed invention is based on the formation excavation section 8 formed on the back side of the retaining wall 81.
Lightweight aggregate to 3, crushed stone, to form a filled portion by Kuriishi like, a underground drainage structure so as to drain the underground water via the filling unit, a number of the retaining wall 81 Water outlet channel 8
4, the downward slope toward the surface side from the back side of該擁wall 81, and formed through the thickness direction of the retaining wall 81, claim 1
The retaining wall 81 converging drainage member 61 according to any one to 4 of,
The drain pipe 21 is connected to the water outlet channel from the back side of the retaining wall 81.
84 and the outer surface of the first side wall 33 is a retaining wall.
81 prior to installation, the underground water by fixing the back surface
A filling section formed in the formation excavation section 83;
1 and discharged through the water outlet channel 84 of the retaining wall 81.
The underground drainage structure is characterized by
You.

[0011] In order to achieve the third object, the present invention provides a semiconductor device comprising:
The invention described in (5) is a method for constructing an underground drainage structure according to claim 5 , wherein a plurality of water outlet pipes ( 84 ) are provided on the retaining wall ( 81).
Is provided in an inclined and penetrating direction in a thickness direction thereof.
The collection / drainage member 61 described in any of the above is inserted into the retaining wall 81 , and the drainage pipe 21 is inserted into the water outlet pipe 84 from the back side of the retaining wall 81 , and the outer surface of the first side wall 33 is placed on the rear surface of the retaining wall 81 . After being attached by bonding, the underfill water is formed by backfilling a lightweight aggregate, crushed stone, chestnut stone, or the like into a stratum excavated portion 83 formed on the back side of the retaining wall 81 , wherein the underground water is formed. It is a construction method of a punching structure.

[0012]

According to the first aspect of the present invention , the drainage collecting member 61 is fixed to the retaining wall 81 , and its drainage port (the end of the drainage pipe 21) is
Communicates with the water outlet channel 84 (e.g. water outlet pipe) provided in the retaining wall 81, the charge and backfilled, for example, crushed stone into the formation excavation 83
The draining structure is formed by forming the filling portion . For this reason, construction of a drainage structure can be performed extremely easily. And in this drainage structure, the underground water is
After flowing down (the filling portion) , the first water collecting hole 38 and the second water collecting hole 38
Of water collecting hole 52 and both ends in the longitudinal direction of drainage pipe 11
The drainage pipe 1 is opened through the openings 35 and 36 that are completely open.
1 flows into the water collecting and filtering member 71 , and the filtered water flows through the drain pipe 21 to the water outlet channel 84 of the retaining wall 81.
And is discharged outside the retaining wall 81 . In this case, the drainage member
61 is filled with the lightweight aggregate 73 , so that the inflow of the silt into the gaps between the fillers and the close contact of the silt with the fillers are prevented, so that an excellent collecting and draining function is maintained for a long time.
In addition, there are many and wide flow channels for the water flowing into the drainage pipe 11.
The use of lightweight aggregate significantly increases the
You.

According to the second aspect of the present invention, the underground water is filled.
After flowing down the filling section, the water collection slit 39 and then the first water collection
Through the hole 38, the first water collecting hole 52, and the drainage
Through openings 35 and 36 at both ends in the longitudinal direction of the tube 11,
The water flows into the water collecting and filtering member 71 in the collecting and draining pipe 11. this
As described above, the water is supplied through the water collecting slit 39 to the first water collecting hole 3.
8 because it flows into the lightweight aggregate packed bed,
Compared to water member, clogging of the first water collecting hole 38 by silt
The ball preventing effect is improved.

[0014] In current drainage member according to claim 3, current drain pipe 11
The filtered water from the water collecting / filtering member 71 inside the first side wall 3
The fluid flows into the drain pipe 21 through the drain hole formed in 3.
Therefore, when the porous sheet material is torn, etc.
Also prevent the lightweight aggregate 73 from flowing into the drain pipe 21.
Can be.

According to the fourth aspect of the present invention , since the drainage pipe 11 is made of hard polyvinyl chloride, it is rich in corrosion resistance, and pearlite is used as the lightweight aggregate 73 .
Handling of the drainage member 61 in conjunction with the lightening of the drainage pipe 11
In addition , the construction of the drainage structure can be performed more safely and easily, and the water purification effect can be obtained by the perlite. In addition, since a nonwoven fabric is used as the porous sheet material, a drainage structure excellent in a water passage function and a silt intrusion prevention function can be constructed.

[0016] In the underwater drainage structure according to claim 5 ,
Using the drainage member 61 according to any one of claims 1 to 4
With the above structure, the simple structure
The drainage action of the drainage member can be obtained.

According to a sixth aspect of the present invention, there is provided the method for constructing an underground drainage structure, wherein the drainage member according to any one of the first to fourth aspects is provided.
1 as described above, so that
Construction can be performed simply and quickly. In particular, by using the one according to claim 4 as a drainage member,
Handling physician and of the current drainage member, the construction of water draining structure, can be carried out more safely and easily.

[0018]

EXAMPLES The present invention will be described in further detail with reference to examples shown in the drawings. FIG. 1 is a front view of a drainage pipe, and FIG. 2 is a plan view of FIG.
FIG. 3 is a sectional view taken along line AA of FIG. FIG.
FIG. 5 is a front view of a U-shaped member constituting the drainage pipe, and FIG.
Front view of the lateral cover that make up the drain pipe, Fig 6 is a plan view of FIG. 5
is there. FIG. 7 shows a drainage / collection / drainage member constructed using this drainage / drainage pipe.
8 is a sectional view taken along the line BB of FIG. Figure 9
Shows the procedure for the construction of the drainage collection member in FIG.
It is a front view of the state before performing.

The drainage pipe 11 shown in FIGS. 1 to 3 is composed of a U-shaped member 31 (having a U-shape in cross section) having a drainage pipe 21 protruding therefrom as shown in FIG. Lid 51 (second side wall)
The drainage member 61 shown in FIGS. 7 to 9 includes the drainage pipe 11 and the drainage / crushing member 71 shown in FIG.

The U-shaped member 31 is, as shown in FIGS.
The central part in the longitudinal direction is bent and the vertical sectional shape is V-shaped,
A short tube with a rectangular cross section, a plane containing its axis
An open portion 32 that is completely open is formed on the near side in FIG. 4 of the U-shaped member 31 so as to have a shape obtained by being divided by (a plane along the longitudinal direction) . In addition, the outer surface 34 of the first side wall 33 is used as a surface to be fixed to the back surface 82 of the retaining wall 81 shown in FIG. 11, and both ends in the longitudinal direction are fully opened to form openings 35 and 36. Further, the U-shaped member 31 includes the upper wall 3
7 a first water collecting hole 38 slit in a direction perpendicular to the longitudinal direction of the member 31 to the central bent portion and the opening of the first side wall 33 inner surface mound on the upper end portion of the ( Reverse V-shaped cross section
The water collecting slit 39 is formed by projecting the plate body 22 in a lateral direction and extending the front end of the plate 22 to the front end of the upper wall 37 so as to be located immediately above the first water collecting hole 38. . The drain pipe 21 is projected by butt-bonded laterally to the outer surface lower portions of the first side wall 33, a perforated plate 4
It communicates with the inside of the U-shaped member 31 through one (or a net) drain hole . The perforated plate 41 is formed on the first side wall 33.
It is configured to be inserted and fixed in a relatively large through hole formed.
Reference numeral 40 denotes a lower wall.

As shown in FIGS. 5 and 6, the lateral lid 51 has a large number of second plates formed in a shape and size capable of closing the entire open portion 32 of the U-shaped member 31 and the entire distal end of the plate 22 . The water collecting hole 52 is formed, and the outer edge portion is formed on the upper wall 3.
7. By adhering to the respective end surfaces of the lower wall 40 and the end surface of the plate 22, the fixing to the U-shaped member 31 is enabled. Side lid 51
The structure of the collection / drainage pipe 11 formed by fixing is as shown in FIGS.

The water collecting and draining member 61 comprises a water collecting and draining pipe 11 and a water collecting and draining member 71 shown in FIG. In this case, it is assumed that the water collecting / filtering member 71 has a lightweight aggregate 73 housed in a bag-like material 72 made of a porous sheet material, and this is opened into a U-shaped member 31 as shown in FIG. After filling through the holes 32, the horizontal lid 51 is fixed to form a collecting / draining member 61 having the structure shown in FIGS. After fixing the side cover 51,
The water collecting / filtering member 71 is removed from one of the openings 35 and 36.
Fill by pushing it into the drainage pipe 11 toward the other side.
You can also.

Next, the structure of the drainage structure will be described together with the method of construction. First, as shown in FIG. 11, a stratum immediately adjacent to a back surface 82 of a retaining wall 81 provided on a ground 91 is excavated to form a stratum excavated portion 83, and a large number of water outlet pipes 84 are formed in the retaining wall 81.
Is provided in a downward gradient from the back surface 82 side to the front surface 85 side of the retaining wall 81 and in the thickness direction of the retaining wall 81, and the drainage / collection member 61 shown in FIG. 7 is prepared. Next, the drain pipe 21 of the collecting / draining member 61 is inserted into the water outlet pipe 84, and the outer surface 34 of the first side wall 33 is adhered to the back surface 82 with a double-sided tape (not shown). Finally, the formation excavation unit 8
For example, the crushed stone 92 is backfilled in 3 to complete the construction of the drainage structure shown in FIG. In FIG. 11, reference numeral 93 denotes a drain pit.

In the drainage structure, the underground water is crushed stone 92
After flowing down the layer, a part is collected through the water collecting slit 39, a part is collected through the second water collecting hole 52 of the horizontal lid 51, and a part is collected through the opening 35 and the opening 36. Drainage pipe 11
And thus into the water collecting and filtering member 71, whereby the filtered water passes through the drain holes of the perforated plate 41 and drains 21
Flows into the water outlet pipe 84 and is discharged to the drain pit 93. The porous plate 41 is for preventing the lightweight aggregate 73 from flowing into the drain pipe 21 even when the bag-shaped material 72 is broken.

The drainage pipe 21, the U-shaped member 31, and the side lid 51, which are constituents of the drainage pipe 11, are preferably made of a plastic material, and particularly preferably hard polyvinyl chloride. Note that a metal material may be used if desired. As the porous sheet material constituting the bag-like material 72, a nonwoven fabric, a net, a woven fabric, a knitted fabric made of synthetic fibers or natural fibers, a plastic sheet (including a plastic film) subjected to punching, and the like are used. . The lightweight aggregate 73 is arbitrarily selected from pearlite, pumice, lapilli, coal husk, rice hull, and the like, and a porous lightweight aggregate obtained by heating and expanding an expandable natural inorganic material at a high temperature. Can be used. In this case, as the constituent material of the collector discharge <br/> water tubes 11 rigid polyvinyl chloride, particularly preferably to use a nonwoven fabric respectively as the porous sheet material, collecting wastewater and damping and earth pressure prevention and water purification such as increase It is possible to easily, quickly and inexpensively construct a drainage structure having excellent functions.

The above-mentioned short tube having a substantially V-shaped vertical cross section is used.
The cross-sectional shape may be U-shaped or arc-shaped. Further, the cross-sectional shape may be circular or semicircular. Furthermore, as the mountain-shaped plate member 22 other than those of the cross-sectional inverted V-shape, Ru can also be used as the inverted U-shaped ones and semicircular <br/> shape. Further, the above embodiment
In the embodiment , the water collecting / filtering member 71 is filled in the U-shaped member 31. However, the lightweight aggregate 73 may be directly filled in the U-shaped member 31 without using the bag-shaped material 72.

When attaching the collecting / draining member 61 to the retaining wall 81, the outer peripheral surface of the drain pipe 21 can be adhered to the inner peripheral surface of the water outlet pipe 84 , or a flange can be attached to the tip of the water outlet pipe 84. It is also possible to form the first side wall 33 of the collecting / drainage pipe 11 as a flange while projecting from the retaining wall back surface 82, and to connect these flanges by bonding or bolting.

Further, when the projecting of the drain pipe 21 to the first side wall 33, it can either be screwed a drain pipe 21 to the screw hole to form the threaded holes in the side walls 33, the apertured plate Instead of providing 41, a perforated plate or net can be provided at the tip of the drain pipe 21.

Further, in the U-shaped member 31, as shown in FIG. 10, slits 43 for water flow may be formed by providing a plurality of flat plates 42 at both ends in the axial direction .

[0030]

As is clear from the above description, according to the present invention, according to the current drainage member according to claim 1, the drainage pipe, provided in the retaining wall
And fix the drainage member to the retaining wall
At the same time, the drainage pipe is communicated with the water outlet passage, and the digging portion is backfilled with, for example, crushed stone to constitute a drainage structure, so that the construction of the drainage structure can be performed extremely easily. There is. Then, according to the water draining structure, since the current drain member is constituted by the filling of lightweight aggregate, when collecting draining underground water flowing into and silt into the gap between the packing, to fill long time since the adhesion of silt is prevented, precisely the increase in the maintenance excellent collecting draining function earth pressure
There is an effect that is prevented. In addition, the drainage pipes are filled with lightweight aggregate.
Many inflows of water into the bed are formed, especially over a large area
The use efficiency of the lightweight aggregate packed bed has been significantly improved
There is fruit.

According to the collection and drainage member of the second aspect, the contractor
The effect of the invention of claim 1 is obtained, and the underground water
Next, the water collecting slit formed just above the water collecting hole 1
Since it flows into the filling layer of the lightweight aggregate through the first water collecting hole of the first embodiment, compared with the water collecting and draining member of the first aspect, the first by the silt .
The effect of preventing clogging of the water collecting hole is improved.

According to the third aspect of the present invention, there is provided a collecting and draining member.
The filtered water from the water collecting and filtering member is formed on the first side wall.
Flows into the drain pipe through the drain hole. Therefore, porous
Even if the permeable sheet material is torn, lightweight
There is an effect that the inflow of aggregate is accurately prevented.

According to the fourth aspect of the present invention , since the drainage pipe is made of hard polyvinyl chloride, it is inexpensive and has high corrosion resistance, and since pearlite is used as the lightweight aggregate, the weight of the drainage pipe is reduced. When combined and handling have your <br/> collecting drain member, the construction of the drainage structure, upon which can be more safely and easily, water purification action is also obtained by perlite,
Also, since a nonwoven fabric was used as the porous sheet material,
There is an effect that a drainage structure excellent in a water passage function and a silt intrusion prevention function can be constructed.

In the underground water drainage structure according to the fifth aspect ,
In <br/> of Ru with a condensed water discharge member according to any one of claims 1 to 4, the construction of the water draining structure Ki de be carried safely and conveniently, and quickly, collecting by these current drain member Drainage action is accurate
The effect is obtained.

According to the construction method of the underground drainage structure according to the sixth aspect , the drainage pipe is formed by using the drainage member according to any one of the first to fourth aspects to remove water from the back side of the retaining wall. is inserted into outlet pipe, since the mounting of the collecting drain member by bonding the first side wall of the collecting drainage tube retaining wall back surface, those
The construction can be performed simply and quickly. In particular,
Use of the material according to claim 4 as a drainage member
The handling of drainage members and the construction of drainage structures
It can be performed safely and easily.

[Brief description of the drawings]

FIG. 1, showing an embodiment of the present invention, is a front view of a drainage pipe.

FIG. 2 is a plan view of FIG.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a front view of a U-shaped member constituting the drainage pipe of FIG. 1;

FIG. 5 is a front view of a lateral lid constituting the drainage pipe of FIG. 1;

FIG. 6 is a plan view of FIG. 5;

FIG. 7 is a front view of a drainage member configured using the drainage pipe of FIG. 1;

FIG. 8 is a sectional view taken along the line BB of FIG. 7;

FIG. 9 is a front view showing a configuration procedure of the collecting / draining member of FIG. 7, in a state before fixing a side cover.

FIG. 10 is a front view of a U-shaped member constituting another embodiment of the collection / drainage pipe, which constitutes the collection / drainage pipe.

FIG. 11 is a longitudinal sectional view of a drainage structure constructed using the drainage member of FIG. 7;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 11 Drainage drainage pipe 21 Drainage pipe 22 Plate body 31 U-shaped member 32 Open part 33 First side wall 34 Outer surface 35, 36 Opening 37 Upper wall 38 First water collection hole 39 Water collection slit 40 Lower wall 41 Perforated plate 42 flat plate 43 water collecting slit 51 side lid (second side wall) 52 second water collecting hole 61 water collecting and draining member 71 water collecting and filtering member 72 bag-like material 73 lightweight aggregate 81 retaining wall 82 back surface 83 formation excavation part 84 Water outlet pipe (water outlet channel) 85 Surface 91 Ground 92 Crushed stone 93 Drain pit

Claims (6)

(57) [Claims] 1. It has a shape bent at a central portion in the longitudinal direction and has a long
Due to the short tube whose vertical cross-sectional shape by the surface along the hand direction is substantially V-shaped
Collecting and draining pipe, and collecting and filtering water filled in the short pipe.
The short pipe has an upper wall, a lower wall, and a surface in the longitudinal direction of the short pipe.
And a second side facing the first side wall
Due to the wall, the cross-sectional shape of the plane orthogonal to the longitudinal direction
A rectangular body with water passages formed at both ends in the longitudinal direction
And forming a first water collecting hole in the central bent portion of the upper wall.
A drain pipe is laterally connected to and communicates with the first side wall.
Thereby, the drainage pipe is formed, a second drainage hole is formed in the second side wall, and the water passage completely opens both ends in the longitudinal direction.
The water collecting / filtering member is formed as an opening , and the lightweight aggregate is made of a porous sheet material.
A water collection and drainage member characterized by being enclosed by the above . 2. A mountain-shaped plate just above the first water collecting hole.
And water is collected by the gap between the plate and the upper wall of the central bent portion.
The slit according to claim 1, wherein a slit is formed.
Collection and drainage members. 3. A short pipe constituting the collecting / draining pipe,
The outer surface of the side wall is fixed to the back surface of the retaining wall, and
A drain hole communicating with the drain pipe was formed in the first side wall.
The collection / drainage member according to claim 2, wherein: 4. The drainage pipe is made of hard polyvinyl chloride, and the porous sheet material is a non-woven fabric;
The drainage member according to claim 1, 2 or 3 , wherein the lightweight aggregate is perlite. 5. An underground structure in which a filling portion made of lightweight aggregate , crushed stone, rubble stone, or the like is formed in a stratum excavation portion formed on the back side of a retaining wall, and underground water is drained through the filling portion. Wherein a plurality of water outlet channels are formed in the retaining wall so as to penetrate downwardly from the back side to the front side of the retaining wall and in the thickness direction of the retaining wall. A drainage pipe according to any one of Claims 1 to 4 is inserted into the retaining wall, and the drainage pipe is inserted into the water outlet channel from the back side of the retaining wall, and the outer surface of the first side wall is fixed to the rear side of the retaining wall. By mounting underground water in front
A filling section formed in the formation excavation section, the drainage member and
The underground water drainage structure, wherein the water is discharged through a water outlet channel of the retaining wall . 6. A method of installing underground drainage structure according to claim 5, inclined-through deploying multiple water outlet pipe in the thickness direction of the retaining wall, claims 1 to 4 And the drain pipe is inserted into the water outlet pipe from the back side of the retaining wall, and the outer surface of the first side wall is adhered to the back side of the retaining wall. After installing by the
A method for constructing an underground water drainage structure, wherein the filling portion is formed by backfilling lightweight aggregate, crushed stone, chestnut stone, or the like in a stratum excavation portion formed on a back surface side.