JPH0715823U - Underdrain drainage pipe - Google Patents

Abstract

(57) [Summary] [Purpose] To improve the resistance to clogging by soil, improve the drainage function, and improve the pressure resistance function in the soil. [Structure] Opening 3, 3 in a continuous straight line
Water is collected from a and 3b, and three adjacent space rooms 2, 2a,
The underdrain drainage pipe 1 for draining 2b as a water channel, having continuous C-shaped projections 4, 4a, 4b, and further 6 plate-shaped projections 5, 5a, 5b, 5c, 5d, 5e. It is provided so that the space chambers 2, 2a, 2b are not compressed and deformed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is buried in the soil and collects spring water in the soil or permeated water from the outer periphery from a continuous straight lined opening, and discharges three adjacent space chambers as water channels. For underdrain collection drainage pipes for.

[0002]

[Prior art]

 Traditionally, drainage works in parks, school grounds, land reclamation areas, and other landslide prevention works caused by groundwater have included bamboo culverts, sod bundles, crushed stones, or various synthetic resin culvert pipes and concrete pipes. Perforated tubes are often used.

The functions required for the underdrain are mainly water collection, drainage, pressure resistance and clogging resistance, but the highest priority is to collect water in the pipe. However, this is good for bamboo culverts, which have a straight outer circumference, as well as those with a large catchment area such as a bunch of sod and quarry stones. For example, the water level of the Imperial Palace moat The adjustments have been made by Sodatsu for hundreds of years in Edo.

However, these materials tend to be scarce in recent years, and it is difficult to obtain them due to lack of labor. Therefore, various plastics and concretes are used instead.

In the conventional similar pipe, there are only two spaces of the same shape, and when used alone, there is only one water collecting port for each of the upper and lower sides, and capture of spring water and ground water infiltrating from all directions. However, in the long run, the probability of survival of the drainage canal due to clogging over time was poor. Moreover, even with respect to earth pressure in all directions, the degree of dispersion of earth pressure was low due to the small number of waterways, and the pressure resistance effect was not sufficiently exerted. When a large number were bundled together, it was difficult to form a perfect circle, and there was a tendency for it to become a flattened body during packing and transportation.

[0006]

[Problems to be solved by the device]

 The purpose of the present invention is to apply the excellent technology of the S-shaped underdrain collection drainage pipe as a reference. When buried inside, the drainage pipes form a space with each other to improve clogging resistance, improve the drainage function, improve the pressure resistance function in the soil, and make further improvements. It is to provide a new underdrain collection drainage pipe.

[0007]

[Means for Solving the Problems]

 According to the present invention, the underdrain drainage pipe is buried in the soil, and the spring water in the soil or the water permeated from the ground is collected from the continuous straight line-shaped openings 3, 3a, 3b, and adjacent to each other. A drainage pipe 1 for draining drainage from three matching space chambers 2, 2a, 2b that serves as a waterway, and has a well-received water outside the space chambers 2, 2a, 2b And 6 plate-like projections that have continuous C-shaped projections 4, 4a, 4b so that a space can be secured between them, and that are in the immediate vicinity of the openings 3, 3a, 3b. When the bodies 5, 5a, 5b, 5c, 5d, 5e are provided, and the drainage pipe is buried in the soil by this, earth pressure or heavy machine pressure is applied from all directions of the outer circumference of the drainage pipe 1, and the space chamber 2, 2a and 2b are not compressed and deformed, and the sand particles in the soil can easily enter from the water collection port and become empty. Chamber 2, 2a, and deposited in the lumen of 2b, which is underdrain collection drainage pipes, characterized in that to prevent the function of the waterways loss of Ukoto in advance.

[0008]

[Action]

 According to the present invention, it is buried in the soil and the spring water in the soil or the permeated water from the ground is collected from the continuous straight lined opening, and the three adjacent space chambers are connected to the water channel. It is a drainage pipe for the underdrain that drains as a result, so that a good water receiver is provided outside the space room, and even if a large number of drainage pipes are bundled, a space can be secured between each other. When it has a continuous C-shaped projection and the collection and drainage pipe is buried in the soil, earth pressure or heavy machinery pressure is applied from the entire outer peripheral direction of the collection and drainage pipe, and the space chamber is compressed and deformed. In order to prevent soil particles in the soil from easily entering from the water collecting port and accumulating in the lumen of the waterway and impairing the function as a waterway, a continuous plate-like projection near the opening. Consolidate multiple underdrain drainage pipes with bodies to secure darkness in parks, school grounds and construction sites. When water collection and drainage work is carried out, a large number of spaces are formed between the underdrain water collection and drainage pipes due to the C-shaped projections of the water collection and drainage pipes for seepage water such as rainwater, spring water, and soil sand. The sand and sand are filtered, and only water enters the water collecting port, flows through the flow passage, and is drained.

The space in the substantially circular shape of the C-shaped projection serves as a water channel for a small amount of water flow passage, and a large amount of water enters from the water collecting port provided in the three-lobed water collecting and draining pipe, It is discharged through the flow passage between.

The plurality of plate-shaped continuous projections provided in the immediate vicinity of the water collecting port are intended to be caught inside the underdrain water collection and drainage pipe due to earth pressure such as earth and sand and heavy machine pressure. This is to prevent the deformation of the sand and to prevent the sand particles that try to enter from the water intake.

[0011]

【Example】

 FIG. 1 is a perspective view of the underdrain collection and drainage pipe 1, but if it is used alone as in FIG. 1, it is possible to collect water from the straight openings 3, 3a, 3b, and a large number of them. When randomly focused as shown in Fig. 2, it is possible to collect water from all around the top, bottom, left and right, including the gaps in contact with each other. The three space chambers 2, 2a, 2b are channels that are nearly circular, and seepage water and spring water in the ground flow in from the continuous linear openings 3, 3a, 3b as described above. . The openings 3, 3a, 3b are funnel-shaped and have good water reception, and are 4 for the opening 3, 4a for the opening 3a, and 4c for the opening 3b. Since the C-shaped projection that is continuous with is provided, the effect is further improved.

When a plurality of underdrain collection drainage pipes 1 are bound together as shown in FIG. 2, the C-shaped projections 4, 4a, 4b abut against each other underdrain collection drainage pipes 1 and In addition, it also serves to secure space and improve the functions of water resistance, clogging resistance, and pressure resistance.

Since the space chambers 2, 2a, 2b that are water channels are the same as commercially available vinyl pipes and the like, they are completely smooth, and when they are bundled together, the space between them is also smooth. In addition, since the inside of the substantially circular shape of the C-shaped projection forms a space and serves as a drainage passage, the drainage capacity is improved.

Next, as a function required as an underdrain, since these are generally buried in the soil, repair, maintenance, and replacement are completely impossible, and therefore destruction is required. It is absolutely necessary to take measures against the loss of permanence due to clogging with sand or sand.

The plate-shaped continuous projections 5, 5a, 5b, 5c, 5d, 5e provided in the immediate vicinity of the openings 3, 3a, 3b solve these problems, and earth pressure ( Heavy machinery pressure) is applied to the three space chambers from above (from the lower right for 2a, and from the lower left for 2b), and the tip 6 of the opening 3 part should be wound inside. In this case, earth pressure (heavy machinery pressure) is applied from the downward direction by the projections of 5, and the arch action as a circular tube with the tip 6 supported is immediately exhibited. The same effect is exerted by the projections 5b and 5d also in the space chambers 2a and 2b. With respect to earth pressure (heavy machinery pressure) from the left and right directions, each tip 6, 6a, 6b is supported by the member 7 that separates the space chambers 2, 2a, 2b, and the water channel on the circular pipe is secured. Become.

That is, of the three space chambers in FIG. 1, the space chamber 2 will be described. When an external pressure is applied from above (the direction of the C-shaped protrusion 4), the tip 6 has a plate-shaped protrusion 5. Alternatively, the deformation of the space chamber 2 can be prevented by reliably contacting the space 5a. Further, when external pressure is applied from the right direction (the direction of the plate-shaped protrusion 5a), the tip 6 surely abuts the plate-shaped protrusion 5 to prevent the deformation of the space chamber 2. Further, when an external pressure is applied from the left direction (the direction of the plate-shaped protrusion 5e), the tip 6 surely abuts the plate-shaped protrusion 5a to prevent the deformation of the space chamber 2. The deformations of the space chambers 2a and 2b with respect to the external pressure are similar to those of the space chamber 2 and can withstand the external pressure from all directions.

The drainage pipes under the underdrain are generally filled with a filter material such as crushed stone, gravel, chaff, rough sand, etc., including not only this devised pipe but also many other drain pipes. It is actually impossible to prevent the surrounding sand and sand from invading around these underdrain pipes, and it is necessary to prevent the earth and sand from re-entering the waterway to the maximum extent. In the present invention, the projections 5a, 5c, 5e are provided in the vicinity of the openings 3, 3a, 3b to block the sand and sand, and the fine sand and sand are deposited there because the invading water is swept away. . Since the flow velocity of the infiltrated water into the underdrain is extremely small, and a slight decrease in flow velocity has the effect of depositing inclusions, it is possible to prevent clogging in the water channel.

Since C-shaped projections 4, 4a, 4b are provided outside the space chambers 2, 2a, 2b of the water collection and drainage pipe 1, when a large number of these water collection and drainage pipes 1 are bundled, A space is secured between them, and sand and sand are filtered, and a water channel is formed in the substantially circular shape of the C-shaped projection, which serves as a flow passage. Furthermore, even if a large number of collecting / draining pipes 1 are focused, the C-shaped projections 4, 4a, 4b do not bite into the openings 3, 3a, 3b and block them, so that the collecting / draining effect is improved. .

Furthermore, since the C-shaped projections 4, 4a, 4b of the water collection and drainage pipe 1 have a notch in a part of the circumference, they have elasticity with respect to external pressure, and are suitable for high embankment work. The pressure resistance function is improved.

FIG. 2 shows a state 8 in which a large number of underdrain collection drainage pipes 1 having the above-mentioned functions are randomly bundled and bound by a binding member 10 such as a polypropylene synthetic resin band or other binding number wires.

FIG. 3 shows a structure in which the underdrain drainage pipes 1 are bound together and placed in the soil and filled with crushed stone 9.

FIG. 4 shows the case where a large-sized underdrain water collection and drainage pipe 1 is used alone. This is to secure a larger lumen and improve the efficiency of water collection and drainage when the drainage is large. It has been placed in the area and has a great economic effect.

FIG. 5 is a reference diagram showing a use state of the state 8 in which the underdrain collection and drainage pipes 1 are bound. A hole 14 is excavated by a horizontal boring at an angle of 10 ° to 15 ° upward on a slope 13 on the rear surface of the concrete retaining wall 12, and the bundled drainage pipe 8 for the underdrain is inserted and installed. A water collecting well 15 is mainly provided to treat water deep in the ground. It is used for deep-layer drainage, but also for shallow layers.

[0024]

[Effect of device]

 As described above, according to the present invention, when the drainage pipe is buried in the soil, the space chamber can be compressed and deformed even when earth pressure or heavy machinery pressure is applied from all directions of the entire circumference of the drainage pipe. It will be prevented as much as possible, and it will be possible to prevent the entry of sand and sand in the middle from the collection and drainage port, and to prevent the water channel from being blocked.

Further, since the water collection and drainage pipe has a C-shaped projection, if it is converged to form an underdrain water collection and drainage pipe, the filtering effect is improved, and the water channel having a substantially small circular shape is increased. The C-shaped projection has a partial cut-out for the earth pressure, which makes it elastic and resistant to earth pressure. .

[Submission date] May 26, 1994

[Procedure Amendment 2]

[Document name to be amended] Statement

[Name of item to be corrected] 0005

[Correction method] Change

[Correction content]

As a plastic product, a horizontal S-shaped underdrain drainage pipe is described in Japanese Utility Model Publication No. 61-12127. This underdrain drainage pipe has only two space chambers of the same shape on the left and right, and when used alone, it has only one opening at the top and one at the bottom that connects to the two space chambers, and infiltrates from all directions. Incoming springs and groundwater were not sufficiently captured, and there were only two space chambers, so the probability of survival of the drainage channel due to clogging over the years was poor in the long run. Moreover, even with respect to earth pressure in all directions, the degree of dispersion of earth pressure was low due to the small number of waterways, and the pressure resistance effect was not sufficiently exerted. When a large number of bundles were bundled together, it was difficult for the outer shape to become a perfect circle, and there was a tendency for it to become a flat body during packing and transportation.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction content]

[0006]

[Problems to be solved by the device]

 The purpose of the present invention is to apply the superior technology of the horizontal S-shaped underdrain collection drainage pipe, and to apply it, the underdrain drainage pipe with three space chambers of the same type in three-leaf shape and the opening and the plate-like projection near the opening When the underdrain drainage pipes are bundled and buried in the soil, the underdrain drainage pipes form a space with each other to improve the clogging resistance and improve the drainage and drainage function. It is intended to provide a new underdrain drainage pipe with improved pressure resistance and improved features.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0007

[Correction method] Change

[Correction content]

[0007]

[Means for Solving the Problems]

 The present invention is a culvert drainage pipe that is buried in soil and collects spring water in the soil or permeated water from the ground, and has three continuous and continuous openings along the axis of the culvert drainage pipe. 3, 3a, 3b, and a partition plate 7 extending in the circumferential direction, and three space chambers 2, 2a, 2b, each of which has a three-leaf-shaped outer shape and is continuous with each of the openings 3, 3a, 3b, The underdrain drainage pipe is characterized by including at least three continuous plate-shaped projections 5, 5a, 5b provided in the vicinity of the respective openings 3, 3a, 3b.

[Procedure Amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction content]

[0008]

[Action]

 According to the present invention, it is buried in the soil and the spring water in the soil or the permeated water from the ground is collected from the opening along the continuous pipe axis without interruption, and the three adjacent space chambers. It is an underdrain collection drainage pipe that drains water as a waterway. The outside of the space chamber is in a three-leaf shape, and even if a number of underdrain drainage pipes are bundled, a space can be secured between each of them. Furthermore, when the focused drainage pipe is buried in the soil, earth pressure or heavy machinery pressure is applied from the entire outer peripheral direction of the focused drainage pipe, and the space chamber is not compressed and deformed. Also, in order to prevent soil particles in the soil from easily entering through the openings and accumulating in the space chambers and impairing the function as a water channel, continuous plate-shaped projections near each opening. At least one is provided and the water inlet is bent. In addition, when several underdrain drainage pipes are focused to perform drainage drainage work in parks, school grounds, and land development sites, seepage water such as rainwater, spring water, and soil sand are focused. Only the water that is filtered by the large number of spaces created between the space enters the space chamber through the opening, flows through the space chamber, and is drained.

[Procedure correction 6]

[Document name to be amended] Statement

[Correction target item name] 0009

[Correction method] Delete

[Procedure Amendment 7]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction content]

At least one plate-like continuous protrusion provided near each opening is to be caught inside the underdrain drainage pipe due to earth pressure such as earth and sand and heavy machine pressure. This is to prevent the deformation of the sand and to prevent the soil sand that is about to enter through the opening.

[Procedure Amendment 8]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction content]

[0011]

【Example】

 FIG. 1 is a perspective view of an underdrain collection and drainage pipe 1 according to an embodiment of the present invention. If this is used alone as shown in Fig. 1, it is possible to collect water from the openings 3, 3a, 3b along the tube axis. It is possible to collect water from all around the top, bottom, left and right, including the gaps in contact with each other. The three space chambers 2, 2a, 2b are channels that are nearly circular, and seepage water and spring water in the ground flow into the continuous linear openings 3, 3a, 3b as described above. . The openings 3, 3a, 3b are funnel-shaped and have good water reception, and are continuous with 4 for the opening 3, 4a for the opening 3a, and 4c for the opening 3b. Since the C-shaped protrusions are provided, the effect is further improved.

[Procedure Amendment 9]

[Document name to be amended] Statement

[Correction target item name] 0017

[Correction method] Change

[Correction content]

In addition, not only this devised pipe but also many other drain pipes are generally filled with filter materials such as crushed stone, gravel, chaff, rough sand, etc. around the underdrain drainage pipe. It is practically impossible to prevent the surrounding sand and sand from invading around these underdrain pipes, and it is necessary to prevent re-invasion of this sand and sand into the waterway as much as possible. As a measure against this, in the present invention, the plate-shaped projections 5, 5a, 5b are provided near the insides of the openings 3, 3a, 3b, and the projections 5c, 5d, 5e are provided near the outsides of the openings 3, 3a, 3b, respectively. By providing it, the intrusion path is bent to block the sand and sand, and fine sand is deposited there. The flow velocity of the water entering the underdrain drainage pipe is extremely small, and a small decrease in the flow velocity has the effect of depositing the inclusions, so it is possible to prevent clogging in the water channel.

[Procedure Amendment 10]

[Document name to be amended] Statement

[Name of item to be corrected] 0025

[Correction method] Delete

[Brief description of drawings]

FIG. 1 is a perspective view of an underdrain collection and drainage pipe 1.

FIG. 2 is a view showing a state in which a large number of underdrain collection drainage pipes 1 according to the present invention are randomly stacked and bound together.

FIG. 3 is a view showing a state in which a bundle of underdrain collection drainage pipes 1 according to the present invention is arranged in soil.

FIG. 4 is a diagram showing a state in which a large-scale underdrain collector / drainage pipe 1 according to the present invention is arranged in the soil.

FIG. 5 is a cross-sectional view of an example of a bundle of underdrain collection drainage pipes 1 according to the present invention.

[Explanation of symbols]

 1 Underdrain drainage pipe 2,2a, 2b Space chamber 3,3a, 3b Opening 4,4a, 4b, 4c C-shaped projection 5,5a, 5b, 5c, 5d, 5e Plate-shaped projection

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[Procedure amendment]

[Submission date] May 26, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be amended] Scope of utility model registration request

[Correction method] Change

[Correction content]

[Scope of utility model registration request]

[Procedure Amendment 11]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a perspective view of an underdrain drainage pipe 1 according to an embodiment of the present invention.

FIG. 2 is a view showing a state in which a large number of underdrain drainage pipes 1 are randomly stacked and bound together.

FIG. 3 is a diagram showing a state in which a bundle of underdrain collection drainage pipes 1 is arranged in the soil.

FIG. 4 is a diagram showing a state in which a large-sized underdrain collection drain pipe 1 is arranged in the soil.

FIG. 5 is a cross-sectional view of a bundle of underdrain collection drainage pipes 1.

[Explanation of Codes] 1 Underdrain collection drainage pipes 2, 2a, 2b Space chambers 3, 3a, 3b Openings 4, 4a, 4b, C-shaped projections 5, 5a, 5b, 5c, 5d, 5e Plate-shaped Protrusion

[Procedure Amendment 12]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

Claims (1)

[Scope of utility model registration request] 1. The underdrain drainage pipe is buried in soil to collect spring water in the soil or permeated water from the ground through continuous straight line-shaped openings 3, 3a, 3b, Next to each other 3
It is a drainage pipe 1 for drainage that drains two space chambers 2, 2a, 2b as a waterway, and when the water receivers are made good outside the space chambers 2, 2a, 2b, and when the drainage pipes are bundled, Have continuous C-shaped projections 4, 4a, 4b so that a space can be secured between them, and the openings 3, 3
6 plate-like projections 5, 5 continuous in the immediate vicinity of a and 3b
When a, 5b, 5c, 5d, 5e are provided and the drainage pipe is buried in the soil by this, earth pressure or heavy machinery pressure is applied from all directions of the outer circumference of the drainage pipe 1, and the space chambers 2, 2a, 2
b is not compressed and deformed, and it is possible to prevent soil particles in the soil from easily entering from the water collecting port and accumulating in the inner cavities of the space chambers 2, 2a, 2b and impairing the function as a water channel. An underdrain collection drainage pipe.