JP7368831B2 - Infiltration guide wall, infiltration guide pipe, and infiltration facility equipped with the same - Google Patents

Infiltration guide wall, infiltration guide pipe, and infiltration facility equipped with the same Download PDF

Info

Publication number
JP7368831B2
JP7368831B2 JP2019194907A JP2019194907A JP7368831B2 JP 7368831 B2 JP7368831 B2 JP 7368831B2 JP 2019194907 A JP2019194907 A JP 2019194907A JP 2019194907 A JP2019194907 A JP 2019194907A JP 7368831 B2 JP7368831 B2 JP 7368831B2
Authority
JP
Japan
Prior art keywords
hole
infiltration
penetration
seepage
permeation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
JP2019194907A
Other languages
Japanese (ja)
Other versions
JP2021067128A (en
Inventor
良祐 手嶋
孝太郎 石田
清武 大森
Original Assignee
ベルテクス株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ベルテクス株式会社 filed Critical ベルテクス株式会社
Priority to JP2019194907A priority Critical patent/JP7368831B2/en
Publication of JP2021067128A publication Critical patent/JP2021067128A/en
Application granted granted Critical
Publication of JP7368831B2 publication Critical patent/JP7368831B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A10/00TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
    • Y02A10/30Flood prevention; Flood or storm water management, e.g. using flood barriers

Landscapes

  • Sewage (AREA)

Description

本発明は、雨水浸透施設に設けられる浸透誘導壁、浸透誘導管に関するものである。 The present invention relates to a seepage guide wall and a seepage guide pipe provided in a rainwater infiltration facility.

従来、桝、マンホール、ボックスカルバート等の雨水排出路から地盤に雨水を浸透させる浸透施設が設置されている。これらの浸透施設の底版に浸透穴が設けられる場合もあり底版上に堆砂すると浸透穴が閉塞されて浸透機能が低下するため定期的にメンテナンスを実施する必要がある。 Conventionally, infiltration facilities have been installed to allow rainwater to infiltrate into the ground from rainwater drainage channels such as pits, manholes, and box culverts. In some cases, infiltration holes are provided in the bottom slab of these infiltration facilities, and if sedimentation occurs on the bottom slab, the infiltration holes become clogged and the infiltration function deteriorates, so maintenance must be carried out periodically.

特許文献1では、桝本体の側壁に設けられる導出孔が桝本体の内面から外面に向けて拡開され、且つ下方に傾斜している。これにより桝本体の周囲の土砂が桝本体内に浸入するのを防止し、桝本体内に貯留された雨水が導出孔から地中に勢いよく排出され、雨水に含まれるゴミや泥も導出孔から地中に勢いよく排出されるものである。 In Patent Document 1, the outlet hole provided in the side wall of the basin body widens from the inner surface to the outer surface of the basin body, and is inclined downward. This prevents the earth and sand around the basin from entering the basin, and the rainwater stored inside the basin is vigorously discharged into the ground from the outlet hole, and the dirt and mud contained in the rainwater are also removed from the outlet hole. It is something that is forcefully expelled inside.

また、特許文献2では、雨水貯留浸透施設の底版や側壁に設けた貫通穴にT字状の浸透フィルタを取り付けている。これにより底版上に堆積した固形物が浸透フィルタに浸入することを防止している。 Furthermore, in Patent Document 2, a T-shaped infiltration filter is attached to a through hole provided in the bottom plate or side wall of a rainwater storage infiltration facility. This prevents solid matter deposited on the bottom plate from entering the permeation filter.

特開2004-169295号公報Japanese Patent Application Publication No. 2004-169295 特開2011-012432号公報Japanese Patent Application Publication No. 2011-012432

しかしながら、特許文献1では、水平方向に対して勢いが付いて排出されるということは、導出孔方向に流速が発生し、桝内面の導出孔径よりも大きな浮きゴミは、導出孔に引き寄せられ、内面側から導出孔を塞いでしまう。また、下面方向についても桝本体の外側に土砂があるため桝本体の下面外側はメンテナンスがし難く、ゴミやドロが堰止められて溜まっていき、導出孔が塞がってしまう。 However, in Patent Document 1, the fact that it is discharged with force in the horizontal direction means that a flow velocity is generated in the direction of the outlet hole, and floating debris larger than the diameter of the outlet hole on the inner surface of the box is attracted to the outlet hole. The outlet hole will be blocked from the inner side. Further, regarding the bottom side, it is difficult to maintain the outside of the bottom side of the box body because there is dirt and sand on the outside of the box body, and dirt and mud are dammed and accumulate, blocking the outlet hole.

また、特許文献2では、T字状の浸透フィルタ方向に流速が発生するため浮きゴミは浸透フィルタ側に引っ張られ、浸透フィルタの表面に浮きゴミが付着して下面方向への浸透を阻害する可能性が有る。 In addition, in Patent Document 2, since the flow velocity is generated in the direction of the T-shaped permeation filter, floating dust is pulled toward the permeation filter, and the floating dust may adhere to the surface of the permeation filter and impede the permeation toward the bottom surface. It has sex.

本発明は前記課題を解決するものであり、その目的とするところは、貫通穴を通過する液体に高低差による流速が発生し難く、浸透を阻害し難い浸透誘導壁を提供するものである。 The present invention is intended to solve the above-mentioned problems, and its purpose is to provide a permeation guide wall in which a liquid passing through a through-hole is less likely to have a flow velocity due to a difference in height, and thus is less likely to inhibit permeation.

前記目的を達成するための本発明に係る浸透誘導壁の代表的な構成は、液体を地盤に排出する浸透穴が形成された液体を収容する施設の内部において、前記浸透穴の上流側に配置される浸透誘導壁であって、前記浸透誘導壁はこれを貫通する複数の貫通穴を有し、前記貫通穴は、前記液体が移動する上流側から下流側に向かって鉛直方向上方に傾斜して設けられ、前記貫通穴の前記浸透誘導壁の前記液体が移動する上流側の流入頂部は、前記貫通穴の前記浸透誘導壁の前記液体が移動する下流側の流入底部と等しい位置か、または低い位置に設けられていることことを特徴とする。 A typical configuration of the seepage guide wall according to the present invention for achieving the above object is that the wall is disposed upstream of the seepage hole in a facility that accommodates liquid in which the seepage hole for discharging the liquid into the ground is formed. The permeation guide wall has a plurality of through holes passing through the permeation guide wall, and the through holes are vertically inclined upward from an upstream side through which the liquid moves toward a downstream side. the inflow top of the permeation guide wall of the through hole on the upstream side through which the liquid moves is located at the same position as the inflow bottom of the permeation guide wall of the through hole on the downstream side through which the liquid moves; It is characterized by being installed in a low position.

本発明によれば、貫通穴を通過する液体に高低差による流速が発生し難く、浸透を阻害し難い。 According to the present invention, it is difficult for the liquid passing through the through-hole to have a flow velocity due to a difference in height, and therefore it is difficult to inhibit permeation.

(a)は、浸透誘導管の構成を示す平面図である。(b)は、浸透誘導管の構成を示す正面図である。(c)は、浸透誘導管の構成を示す底面図である。(a) is a plan view showing the configuration of a penetration guide tube. (b) is a front view showing the configuration of the penetration guide tube. (c) is a bottom view showing the configuration of the penetration guide tube. 浸透誘導管を斜め上側から見た斜視図である。FIG. 3 is a perspective view of the penetration guide tube viewed diagonally from above. 浸透誘導管の一部を縦方向に切断して見せた断面図である。FIG. 3 is a cross-sectional view showing a part of the penetration guide tube cut in the longitudinal direction. 浸透誘導管を備えた雨水浸透施設の構成を示す断面図である。FIG. 2 is a cross-sectional view showing the configuration of a rainwater infiltration facility equipped with infiltration guide pipes. (a)は、浸透誘導管を備えた誘導ユニットの構成を示す側面図である。(b)は、(a)のA-A断面図である。(a) is a side view showing the configuration of a guide unit including a penetration guide tube. (b) is a sectional view taken along line AA in (a). 浸透誘導管の貫通穴の構成を示す断面図である。FIG. 3 is a cross-sectional view showing the configuration of a through hole of the penetration guide tube. 浸透誘導管の貫通穴の他の構成を示す断面図である。FIG. 7 is a cross-sectional view showing another configuration of the through hole of the penetration guide tube. (a)は、浸透誘導壁を備えた雨水浸透施設の構成を示す断面図である。(b)は、浸透誘導壁を備えた雨水浸透施設の他の構成を示す断面図である。(a) is a sectional view showing the configuration of a rainwater infiltration facility equipped with a seepage guiding wall. (b) is a sectional view showing another configuration of a rainwater infiltration facility including a seepage guide wall.

図により本発明に係る浸透誘導壁、浸透誘導管及びこれを備えた浸透施設の一実施形態を具体的に説明する。 DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a penetration guiding wall, a penetration guiding pipe, and a penetration facility equipped with the same according to the present invention will be specifically described with reference to the drawings.

<浸透誘導管>
図1乃至図3に示す浸透誘導管1は、液体3を収容する施設内に設けられ、その施設から液体3を排出する開口に連通され、前記開口から流れ出る液体3に高低差による流速が発生しないように液体3の排出を誘導するものである。
<Infiltration guide tube>
The penetration guide pipe 1 shown in FIGS. 1 to 3 is installed in a facility that accommodates a liquid 3, and is communicated with an opening for discharging the liquid 3 from the facility, and a flow velocity occurs in the liquid 3 flowing out from the opening due to a height difference. This is to guide the discharge of the liquid 3 so that it does not occur.

浸透誘導管1の肉厚部1bは、貫通穴2を介して浸透する液体としての雨水3aを誘導する浸透誘導壁として構成されている。貫通穴2は、図6に示すように、雨水3aが移動する上流側(図6の左側)から下流側(図6の右側)に向かって鉛直方向上方(図6の上方)に傾斜して設けられている。貫通穴2の浸透誘導壁の雨水3aが移動する上流側(図6の左側)の流入頂部2aは、貫通穴2の浸透誘導壁の雨水3aが移動する下流側(図6の右側)の流入底部2bと等しい位置か、または低い位置に設けられている。 The thick wall portion 1b of the penetration guide tube 1 is configured as a penetration guide wall that guides rainwater 3a as a liquid that penetrates through the through hole 2. As shown in FIG. 6, the through hole 2 is inclined vertically upward (upward in FIG. 6) from the upstream side (the left side in FIG. 6) where the rainwater 3a moves toward the downstream side (the right side in FIG. 6). It is provided. The inflow apex 2a on the upstream side (the left side in FIG. 6) where the rainwater 3a of the penetration guide wall of the through hole 2 moves is the inflow top 2a on the downstream side (the right side in FIG. 6) where the rainwater 3a of the penetration guide wall of the through hole 2 moves. It is provided at a position equal to or lower than the bottom part 2b.

図6に示すように、浸透誘導管1の壁面1aには、壁面1aを貫通する複数の貫通穴2が設けられている。図6に示すように、浸透誘導管1が鉛直方向(図6の上下方向)に配置された姿勢において、貫通穴2は、浸透誘導管1の外側(図6の左側)から浸透誘導管1の内側(図6の右側)に向かって上方に傾斜して設けられている。貫通穴2の浸透誘導管1の外面側の流入頂部2aは、同じ貫通穴2の浸透誘導管1の内面側の流入底部2bと等しい位置か、または流入底部2bよりも低い位置に設けられている。即ち、図6に示す流入頂部2aと流入底部2bとの高低差Δh≧0である。 As shown in FIG. 6, the wall surface 1a of the penetration guide tube 1 is provided with a plurality of through holes 2 that penetrate the wall surface 1a. As shown in FIG. 6, when the penetration guide tube 1 is disposed in the vertical direction (vertical direction in FIG. 6), the through hole 2 is inserted into the penetration guide tube 1 from the outside of the penetration guide tube 1 (left side in FIG. 6). It is provided so as to be inclined upward toward the inner side (right side in FIG. 6). The inflow top portion 2a on the outer surface side of the penetration guide tube 1 of the through hole 2 is provided at the same position as the inflow bottom portion 2b on the inner surface side of the penetration guide tube 1 in the same through hole 2, or at a position lower than the inflow bottom portion 2b. There is. That is, the height difference Δh≧0 between the inflow top portion 2a and the inflow bottom portion 2b shown in FIG.

図6において、施設内に貯留された液体3の表面が貫通穴2の浸透誘導管1の内面側の流入底部2bよりも高いレベルに達すると、施設内に貯留された液体3は、浸透誘導管1の外側(図6の左側)から浸透誘導管1の貫通穴2を通過して浸透誘導管1の内側(図6の右側)に向かって流れ出し、浸透誘導管1内を通過して施設の開口から流れ出る。浸透誘導管1の貫通穴2を通過する液体3の表面には、高低差による流速が発生しない。これにより液体3に含まれる不要な物質が流速によって浸透誘導管1の外側(図6の左側)から浸透誘導管1の内側(図6の右側)に流れ込むことを抑制することができる。これにより不要な物質のうち、特に浮遊する物質が流速によって浸透誘導管1の内側に流れ込むことや浸透誘導管1の外側を塞ぐことを大きく抑制できる。 In FIG. 6, when the surface of the liquid 3 stored in the facility reaches a level higher than the inflow bottom 2b on the inner surface side of the penetration guide pipe 1 of the through hole 2, the liquid 3 stored in the facility It flows from the outside of the tube 1 (left side in Figure 6) through the through hole 2 of the penetration guide tube 1 to the inside of the penetration guide tube 1 (the right side in Figure 6), passes through the inside of the penetration guide tube 1, and flows into the facility. flows out from the opening. No flow velocity occurs on the surface of the liquid 3 passing through the through hole 2 of the permeation guide tube 1 due to the height difference. This can prevent unnecessary substances contained in the liquid 3 from flowing from the outside of the permeation guide tube 1 (the left side in FIG. 6) to the inside of the permeation guide tube 1 (the right side in FIG. 6) depending on the flow rate. This can greatly suppress unnecessary substances, especially floating substances, from flowing into the inside of the permeation guide tube 1 or blocking the outside of the permeation guide tube 1 due to the flow velocity.

逆に施設内の水位が下がる際には、浸透誘導管1内の水は浸透誘導管1の外側に向けて流速が発生する。これにより浸透誘導管1の外周に設けられたフィルタ材11が逆洗される。また、万が一、浸透誘導管1の外側が浮遊する物質に塞がれた場合でも、施設内の浸透誘導管1の外側の雨水3aの水位が下がった時に、浸透誘導管1内に溜まった雨水3aにより塞いだ物質を浸透誘導管1の外側へ押し出そうとする動きが発生する。 On the other hand, when the water level in the facility decreases, the water inside the seepage guide pipe 1 generates a flow velocity toward the outside of the seepage guide pipe 1. As a result, the filter material 11 provided around the outer periphery of the penetration guide tube 1 is backwashed. In addition, even if the outside of the infiltration guide pipe 1 is blocked by floating substances, when the water level of the rainwater 3a outside the infiltration guide pipe 1 in the facility falls, the rainwater that has accumulated inside the infiltration guide pipe 1 will be removed. A movement occurs to push out the substance blocked by 3a to the outside of the permeation guide tube 1.

本実施形態の浸透誘導管1の貫通穴2は、図1(b)、図2、図3に示すように、六角形のハニカム形状で構成されている。浸透誘導管1の内面側の貫通穴2の六角形の面積は、浸透誘導管1の外面側の貫通穴2の六角形の面積よりも小さく、浸透誘導管1の内径と外径に応じて貫通穴2の六角形の面積は、浸透誘導管1の内面側から浸透誘導管1の外面側に向かって連続的に大きくなっている。浸透誘導管1の貫通穴2を六角形のハニカム形状で構成したことにより浸透誘導管1の強度を高めることができる。尚、浸透誘導管1の貫通穴2の形状は、六角形に限定する必要は無く、円形や楕円形、或いは、三角形や四角形、五角形等でも良い。また、浸透誘導管1は、円筒形状や楕円筒形状、三角筒形状、四角筒形状、五角筒形状、六角筒形状であっても良い。また、浸透誘導管1は、一体型であっても良いし、別体の板を組み合わせて浸透誘導管1を構成したものであっても良い。また、貫通穴2は、図1に示すハニカム形状のように連続してまんべんなく配置されていても良いし、浸透誘導管1にまばらに配置されていても良い。 The through hole 2 of the penetration guide tube 1 of this embodiment has a hexagonal honeycomb shape, as shown in FIGS. 1(b), 2, and 3. The hexagonal area of the through hole 2 on the inner surface of the penetration guide tube 1 is smaller than the hexagonal area of the through hole 2 on the outer surface of the penetration guide tube 1, and the hexagonal area is smaller than the hexagonal area of the through hole 2 on the outer surface of the penetration guide tube 1. The hexagonal area of the through hole 2 increases continuously from the inner surface of the penetration guide tube 1 toward the outer surface of the penetration guide tube 1. By forming the through hole 2 of the penetration guide tube 1 into a hexagonal honeycomb shape, the strength of the penetration guide tube 1 can be increased. Note that the shape of the through hole 2 of the penetration guide tube 1 is not limited to a hexagonal shape, and may be circular, oval, triangular, square, pentagonal, or the like. Further, the penetration guide tube 1 may have a cylindrical shape, an elliptical shape, a triangular shape, a square shape, a pentagonal shape, or a hexagonal shape. Further, the penetration guide tube 1 may be of an integrated type, or may be configured by combining separate plates. Further, the through holes 2 may be arranged continuously and evenly like the honeycomb shape shown in FIG. 1, or may be arranged sparsely in the penetration guide tube 1.

<雨水浸透施設>
図4は、浸透誘導管1を備えた雨水浸透施設4の構成を示す断面図である。図4に示す雨水浸透施設4は、地盤6に埋設され、雨水を排水する管路を構成するボックスカルバート5の一例である。ボックスカルバート5は、底版5aと、側版5b,5cと、天版5dとを有する箱型の構造物として構成されている。底版5aと、側版5b,5cには、それぞれ底版5aと、側版5b,5cを貫通する貫通穴からなる複数の浸透穴7a~7cが設けられている。ボックスカルバート5内を排水される雨水3aは、雨水3aの水位に応じて各浸透穴7a~7cから排水されて周囲の地盤6に浸透する。尚、雨水浸透施設4としては、ボックスカルバート5の他に浸透桝、浸透マンホール等にも適用可能である。
<Rainwater infiltration facility>
FIG. 4 is a cross-sectional view showing the configuration of a rainwater infiltration facility 4 provided with the infiltration guide pipe 1. As shown in FIG. The rainwater infiltration facility 4 shown in FIG. 4 is an example of a box culvert 5 that is buried in the ground 6 and constitutes a pipe for draining rainwater. The box culvert 5 is configured as a box-shaped structure having a bottom plate 5a, side plates 5b and 5c, and a top plate 5d. The bottom plate 5a and the side plates 5b, 5c are provided with a plurality of penetration holes 7a to 7c, which are through holes penetrating the bottom plate 5a and the side plates 5b, 5c, respectively. Rainwater 3a drained inside the box culvert 5 is drained from each of the seepage holes 7a to 7c depending on the water level of the rainwater 3a, and permeates into the surrounding ground 6. In addition to the box culvert 5, the rainwater infiltration facility 4 can also be applied to a seepage pit, a seepage manhole, etc.

<誘導ユニット>
図5(a)は、浸透誘導管1を備えた誘導ユニット8の構成を示す側面図である。図5(b)は、図5(a)のA-A断面図である。図4に示すように、雨水浸透施設4の底部を構成するボックスカルバート5の底版5aには、排水穴としての浸透穴7aが設けられている。図5(a)に示す誘導ユニット8は、図4に示すボックスカルバート5の底版5aに設けられた浸透穴7aから天版5dの内面5d1までの高さに対応した長さを有して構成されている。
<Guidance unit>
FIG. 5(a) is a side view showing the configuration of the guide unit 8 including the penetration guide tube 1. FIG. 5(b) is a sectional view taken along line AA in FIG. 5(a). As shown in FIG. 4, the bottom plate 5a of the box culvert 5 that constitutes the bottom of the rainwater infiltration facility 4 is provided with a seepage hole 7a as a drainage hole. The guidance unit 8 shown in FIG. 5(a) has a length corresponding to the height from the penetration hole 7a provided in the bottom plate 5a of the box culvert 5 shown in FIG. 4 to the inner surface 5d1 of the top plate 5d. has been done.

誘導ユニット8は、ボックスカルバート5の底版5aに設けられた浸透穴7aに一端部が連通される管体9を有している。管体9は、浸透穴7aの内部に嵌入される外径を有して構成される。管体9の壁面には、開口が設けられていない。管体9は、浸透穴7aの内部に嵌入される嵌入部9aと、図4に示すボックスカルバート5の底版5a上に堆積する堆砂10の高さよりも高い位置まで設けられた堆砂部9bとを有して構成される。即ち、管体9は、堆砂部区間として構成されている。雨水3aに含まれるゴミや土砂等がボックスカルバート5の底版5a上に堆積すると浸透穴7aが閉塞されて浸透性能が低下するが、ボックスカルバート5の底版5a上に堆積する堆砂10の高さよりも高い位置まで堆砂部9bが設けられているため浸透穴7aが閉塞されることなく浸透性能が維持できる。 The guide unit 8 has a tube body 9 whose one end communicates with a penetration hole 7a provided in the bottom plate 5a of the box culvert 5. The tube body 9 is configured to have an outer diameter that fits into the inside of the penetration hole 7a. The wall surface of the tube body 9 is not provided with an opening. The pipe body 9 has a fitting part 9a that is fitted into the inside of the seepage hole 7a, and a sedimentation part 9b that is provided to a position higher than the height of the sedimentation 10 deposited on the bottom plate 5a of the box culvert 5 shown in FIG. It is composed of: That is, the tube body 9 is configured as a sediment section. When garbage, soil, etc. contained in the rainwater 3a accumulates on the bottom plate 5a of the box culvert 5, the seepage hole 7a is blocked and the infiltration performance decreases. Since the sediment portion 9b is provided up to a high position, the permeation performance can be maintained without blocking the permeation hole 7a.

管体9の他端部には、図2に示す浸透誘導管1が連通されている。浸透誘導管1は、ボックスカルバート5の内部で鉛直方向(図4の上下方向)に配置されている。浸透誘導管1の外周面全体に亘ってフィルタ材11が設けられている。フィルタ材11の一例としては、不織布からなる透水マットや新光ナイロン株式会社製のヘチマロン(登録商標)のようなプラスチック製の立体網状構造体等が適用可能である。このようなフィルタ材11は、雨水3aに含まれる砂等の混入ゴミの細かいものを除去することができる。浸透誘導管1の管体9に連通される端部と反対側の端部には、天版取付部材12が設けられている。天版取付部材12には、接続用のフランジ12aが設けられている。ボックスカルバート5の天版5dの内面5d1には、アンカーボルトやアンカーナットが埋設されている。フランジ12aに設けられた貫通穴にアンカーボルトを挿通してアンカーボルトにナットを螺合締結するか、或いは、フランジ12aに設けられた貫通穴にボルトを挿入してアンカーナットに螺合締結することで天版取付部材12を雨水浸透施設4の一部としての天版5dの内面5d1に支持することができる。 The other end of the tubular body 9 is connected to the penetration guide tube 1 shown in FIG. 2 . The infiltration guide pipe 1 is arranged in the vertical direction (in the vertical direction in FIG. 4) inside the box culvert 5. A filter material 11 is provided over the entire outer circumferential surface of the penetration guide tube 1 . As an example of the filter material 11, a water-permeable mat made of non-woven fabric, a three-dimensional network structure made of plastic such as Hechimaron (registered trademark) manufactured by Shinko Nylon Co., Ltd., etc. can be used. Such a filter material 11 can remove fine particles such as sand contained in the rainwater 3a. A top plate mounting member 12 is provided at the end of the penetration guide tube 1 opposite to the end communicating with the tube body 9. The top mounting member 12 is provided with a flange 12a for connection. Anchor bolts and anchor nuts are buried in the inner surface 5d1 of the top plate 5d of the box culvert 5. An anchor bolt is inserted into a through hole provided in the flange 12a and a nut is screwed onto the anchor bolt, or a bolt is inserted into a through hole provided in the flange 12a and a nut is screwed into the anchor nut. The top plate mounting member 12 can be supported on the inner surface 5d1 of the top plate 5d as a part of the rainwater infiltration facility 4.

ここで、誘導ユニット8は、浸透誘導管1、管体9、天版取付部材12等の部位ごとに分割可能とし、各部位の相互間をフランジ等により連結可能に構成することにより、既設のボックスカルバート5内に、予め分割していた各部位を運び込み、ボックスカルバート5内で各部位を組み立ててボックスカルバート5の底版5aに設けられた浸透穴7aから天版5dの内面5d1までの間に亘って誘導ユニット8を設けることができる。また、別体の板を組み合わせて浸透誘導管1を構成した場合には、複数のL字形状のアングル材を組み合わせて堆砂部9bを形成し、アングル材の上に浸透誘導管1を構成する板を設置することもできる。 Here, the guide unit 8 can be divided into parts such as the penetration guide pipe 1, the pipe body 9, the top plate mounting member 12, etc., and each part can be connected with each other by a flange or the like, so that the existing Each part that has been divided in advance is carried into the box culvert 5, and each part is assembled inside the box culvert 5, and the space between the penetration hole 7a provided in the bottom plate 5a of the box culvert 5 and the inner surface 5d1 of the top plate 5d is A guiding unit 8 can be provided throughout. In addition, when the infiltration guide pipe 1 is constructed by combining separate plates, the sedimentation part 9b is formed by combining a plurality of L-shaped angle members, and the infiltration guide pipe 1 is constructed on the angle members. You can also install a board.

図6に示して前述したように、貫通穴2の浸透誘導管1の外面側の流入頂部2aは、同じ貫通穴2の浸透誘導管1の内面側の流入底部2bよりも低い位置に設けられている。これにより貫通穴2の浸透誘導管1の外面側から同じ貫通穴2の浸透誘導管1の内面側に向かって雨水3aが流出する際に雨水3aに高低差による速度が発生し難く、ボックスカルバート5の内部で浸透誘導管1の外部に貯留している雨水3aに含まれる浮きゴミが浸透誘導管1の内部に入り難い。また、浸透誘導管1の外周面全体に亘って設けられているフィルタ材11に雨水3aに含まれる浮きゴミが張り付き難い。 As shown in FIG. 6 and described above, the inflow top portion 2a on the outer surface side of the penetration guide tube 1 in the through hole 2 is provided at a lower position than the inflow bottom portion 2b on the inner surface side of the penetration guide tube 1 in the same through hole 2. ing. As a result, when the rainwater 3a flows from the outer surface of the permeation guide pipe 1 of the through hole 2 toward the inner surface of the permeate guide pipe 1 of the same through hole 2, it is difficult for the rainwater 3a to have a velocity due to the height difference, and the box culvert Floating garbage contained in rainwater 3a stored outside the infiltration guide pipe 1 inside the infiltration guide pipe 1 is difficult to enter the inside of the infiltration guide pipe 1. Furthermore, floating debris contained in the rainwater 3a is difficult to stick to the filter material 11 provided over the entire outer peripheral surface of the infiltration guide pipe 1.

図4乃至図6に示すように、ボックスカルバート5の内部で浸透誘導管1の外部に貯留している雨水3aの水位が貫通穴2の浸透誘導管1の内面側の流入底部2bに達すると、雨水3aは高低差による流速が発生することなく貫通穴2を通過して浸透誘導管1の内部に流れ込み、管体9の内部を流れて浸透穴7aから排水されて周囲の地盤6に浸透する。

As shown in FIGS. 4 to 6, when the water level of the rainwater 3a stored outside the seepage guide pipe 1 inside the box culvert 5 reaches the inflow bottom 2b on the inner surface side of the seepage guide pipe 1 of the through hole 2. The rainwater 3a passes through the through hole 2 and flows into the infiltration guide pipe 1 without generating a flow velocity due to the height difference, flows inside the pipe body 9, is drained from the infiltration hole 7a, and infiltrates into the surrounding ground 6. do.

従来の雨水浸透施設では、底面に浸透穴がある場合には、雨水3aに含まれるゴミや堆砂10によって浸透穴が閉塞されてしまうため定期的にメンテナンスを実施する必要があった。本実施形態では、ボックスカルバート5の底版5aに設けられた浸透穴7aの内部に誘導ユニット8の管体9を嵌入することで浸透穴7aの浸透性能を長寿命化することができる。 In conventional rainwater infiltration facilities, if there are infiltration holes in the bottom surface, the infiltration holes are clogged with garbage and sediment 10 contained in the rainwater 3a, so maintenance has to be carried out periodically. In this embodiment, by fitting the tubular body 9 of the guide unit 8 into the penetration hole 7a provided in the bottom plate 5a of the box culvert 5, the life of the penetration performance of the penetration hole 7a can be extended.

尚、本実施形態では、ボックスカルバート5の底版5aに設けられた浸透穴7aの内部に誘導ユニット8の直管からなる管体9を嵌入した一例について説明したが、管体9をL字型のエルボ管で構成し、ボックスカルバート5の側版5b,5cに設けられた浸透穴7b,7cの内部に誘導ユニット8のL字型のエルボ管からなる管体9をそれぞれ嵌入し、誘導ユニット8の浸透誘導管1をボックスカルバート5の内部で鉛直方向(図4の上下方向)に配置することで同様の効果を得ることができる。また、本実施形態では、誘導ユニット8の天版取付部材12を天版5dの内面5d1に支持した場合の一例について説明したが、各浸透穴7a~7cに管体9をそれぞれ嵌入した状態で、誘導ユニット8が自立でき、誘導ユニット8の浸透誘導管1をボックスカルバート5の内部で鉛直方向(図4の上下方向)に配置することができる構造であれば、浸透誘導管1の管体9に連通される端部と反対側の端部を雨水浸透施設4の一部に支持しなくても良い。 In the present embodiment, an example has been described in which the tube body 9 made of a straight tube of the guide unit 8 is fitted into the penetration hole 7a provided in the bottom plate 5a of the box culvert 5, but the tube body 9 is L-shaped. The pipe body 9 made of an L-shaped elbow pipe of the guidance unit 8 is fitted into the penetration holes 7b and 7c provided in the side plates 5b and 5c of the box culvert 5, respectively, and the guidance unit A similar effect can be obtained by arranging the penetration guide tubes 1 of No. 8 in the vertical direction (vertical direction in FIG. 4) inside the box culvert 5. Furthermore, in the present embodiment, an example has been described in which the top plate mounting member 12 of the guide unit 8 is supported on the inner surface 5d1 of the top plate 5d, but in a state where the tube body 9 is fitted into each of the penetration holes 7a to 7c. , if the structure is such that the guide unit 8 can stand on its own and the infiltration guide tube 1 of the guide unit 8 can be arranged in the vertical direction (up and down direction in FIG. 4) inside the box culvert 5, the tube body of the infiltration guide tube 1 It is not necessary to support the end opposite to the end communicating with 9 on a part of the rainwater infiltration facility 4.

<他の浸透誘導管>
尚、前記実施形態では、図4及び図6に示すように、浸透誘導管1の外側から内側に向けて雨水3aが移動する場合の一例について説明したが、図7に示すように、浸透誘導管1の外側に図示しない排水穴が設けられ、浸透誘導管1の内側から外側に向けて雨水3aが移動する場合にも適用できる。このとき、貫通穴2を介して浸透する雨水3aを誘導する浸透誘導壁としての肉厚部1bは、貫通穴2を雨水3aが移動する上流側(図7の左側)から下流側(図7の右側)に向かって鉛直方向上方に傾斜して設けられ、貫通穴2の肉厚部1bの雨水3aが移動する上流側(図7の左側)の流入頂部2aは、貫通穴2の肉厚部1bの雨水3aが移動する下流側(図7の右側)の流入底部2bと等しい位置か、または低い位置に設けられている。
<Other penetration guide tubes>
In the above embodiment, as shown in FIGS. 4 and 6, an example has been described in which the rainwater 3a moves from the outside to the inside of the seepage guide pipe 1. However, as shown in FIG. It can also be applied to a case where a drainage hole (not shown) is provided on the outside of the pipe 1 and the rainwater 3a moves from the inside of the seepage guide pipe 1 to the outside. At this time, the thick wall portion 1b serving as a penetration guide wall that guides the rainwater 3a that permeates through the through hole 2 moves from the upstream side (the left side in FIG. 7) where the rainwater 3a moves through the through hole 2 to the downstream side (the left side in FIG. 7). The inflow apex 2a on the upstream side (the left side in FIG. 7), through which the rainwater 3a in the thick wall portion 1b of the through hole 2 moves, is provided to be inclined vertically upward toward the right side of the through hole 2. It is provided at a position equal to or lower than the inflow bottom part 2b on the downstream side (right side in FIG. 7) through which the rainwater 3a of the part 1b moves.

図7に示す浸透誘導壁としての肉厚部1bは、内部から外部に流れ出る液体としての雨水3aを誘導する浸透誘導管1として構成されている。浸透誘導管1の肉厚部1bの壁面1aを複数の貫通穴2が貫通する。浸透誘導管1が鉛直方向(図7の上下方向)に配置された姿勢において、貫通穴2は、浸透誘導管1の内側(図7の左側)から浸透誘導管1の外側(図7の右側)に向かって上方に傾斜している。貫通穴2の浸透誘導管1の内面側の流入頂部2aは、貫通穴2の浸透誘導管1の外面側の流入底部2bと等しい位置か、または低い位置に設けられている。このような構成でも前述と同様に、貫通穴2を通過する雨水3aに高低差による流速が発生し難く、浸透を阻害し難い。 A thick wall portion 1b as a penetration guide wall shown in FIG. 7 is configured as a penetration guide pipe 1 that guides rainwater 3a as a liquid flowing from the inside to the outside. A plurality of through holes 2 pass through the wall surface 1a of the thick wall portion 1b of the penetration guide tube 1. When the permeation guide tube 1 is arranged in the vertical direction (vertical direction in FIG. 7), the through hole 2 extends from the inside of the permeation guide tube 1 (the left side in FIG. 7) to the outside of the permeation guide tube 1 (the right side in FIG. 7). ) slopes upwards. The inflow top portion 2a of the through hole 2 on the inner surface side of the permeation guide tube 1 is provided at a position equal to or lower than the inflow bottom portion 2b of the through hole 2 on the outer surface side of the permeation guide tube 1. Even with such a configuration, as described above, the rainwater 3a passing through the through hole 2 is less likely to have a flow velocity due to the difference in height, and its infiltration is less likely to be inhibited.

<浸透誘導壁>
図8(a)は、浸透誘導壁13を備えた雨水浸透施設4の構成を示す断面図である。図8に示すボックスカルバート5の側版5bを貫通する浸透穴7bには、管路14が接続されている。底部としての底版5aを貫通して開口であって排水穴としての浸透穴7aが設けられている。ボックスカルバート5内部の浸透穴7aが設けられた区画と、浸透穴7bが設けられた区画とは、浸透誘導壁13により仕切られている。浸透誘導壁13の浸透穴7b側の外周には、フィルタ材11が設けられている。
<Infiltration guide wall>
FIG. 8(a) is a sectional view showing the configuration of the rainwater infiltration facility 4 provided with the infiltration guide wall 13. A pipe line 14 is connected to a penetration hole 7b penetrating the side plate 5b of the box culvert 5 shown in FIG. A penetration hole 7a, which is an opening and serves as a drainage hole, is provided through the bottom plate 5a as a bottom portion. A section inside the box culvert 5 in which the penetration hole 7a is provided and a section in which the penetration hole 7b is provided are separated by a penetration guide wall 13. A filter material 11 is provided on the outer periphery of the penetration guide wall 13 on the penetration hole 7b side.

図8(a)に示す浸透誘導壁13は、貫通穴2を介して浸透する液体としての雨水3aを誘導する。貫通穴2は、雨水3aが移動する上流側(図8(a)の左側)から下流側(図8(a)の右側)に向かって鉛直方向上方(図8(a)の上方)に傾斜している。貫通穴2の浸透誘導壁13の雨水3aが移動する上流側(図8(a)の左側)の流入頂部2aは、貫通穴2の浸透誘導壁13の雨水3aが移動する下流側(図8(a)の右側)の流入底部2bと等しい位置か、または低い位置に設けられている。このような構成でも前述と同様に、浸透誘導壁13の貫通穴2を通過する雨水3aに高低差による流速が発生し難く、浸透を阻害し難い。 The penetration guiding wall 13 shown in FIG. 8(a) guides rainwater 3a as a liquid that penetrates through the through hole 2. The through hole 2 is inclined vertically upward (upward in FIG. 8(a)) from the upstream side (the left side in FIG. 8(a)) where the rainwater 3a moves toward the downstream side (the right side in FIG. 8(a)). are doing. The inflow top 2a on the upstream side (the left side in FIG. 8A) where the rainwater 3a of the permeation guide wall 13 of the through hole 2 moves is the downstream side (Fig. 8A) where the rainwater 3a of the permeation guide wall 13 of the through hole 2 moves It is provided at a position equal to or at a lower position than the inlet bottom 2b (right side in (a)). Even with such a configuration, as described above, the rainwater 3a passing through the through hole 2 of the seepage guide wall 13 is unlikely to have a flow velocity due to the difference in height, and its infiltration is difficult to be inhibited.

図8(b)は、浸透誘導壁13を備えた雨水浸透施設4の他の構成を示す断面図である。図8(b)に示すボックスカルバート5は、側版5cの代わりに浸透誘導壁13を設けたものである。浸透誘導壁13の外側には、砕石15が設けられている。このような構成でも前述と同様に、浸透誘導壁13の貫通穴2を通過する雨水3aに高低差による流速が発生し難く、浸透を阻害し難い。 FIG. 8(b) is a sectional view showing another configuration of the rainwater infiltration facility 4 including the infiltration guiding wall 13. The box culvert 5 shown in FIG. 8(b) is provided with a penetration guiding wall 13 instead of the side slab 5c. Crushed stone 15 is provided on the outside of the penetration guide wall 13. Even with such a configuration, as described above, the rainwater 3a passing through the through hole 2 of the seepage guide wall 13 is unlikely to have a flow velocity due to the difference in height, and its infiltration is difficult to be inhibited.

<他の浸透誘導壁>
このような浸透誘導壁13を浸透ボックスカルバート、浸透桝、浸透マンホール、浸透管のうちの何れか1つの壁面として構成することで、前述と同様に、浸透誘導壁13の貫通穴2を通過する雨水3aに高低差による流速が発生し難く、浸透を阻害し難い。
<Other penetration guiding walls>
By configuring such a seepage guiding wall 13 as a wall surface of any one of a seepage box culvert, a seepage pit, a seepage manhole, and a seepage pipe, the water passing through the through hole 2 of the seepage guide wall 13 in the same manner as described above. It is difficult for the rainwater 3a to have a flow velocity due to the height difference, and it is difficult to inhibit infiltration.

本発明の活用例として、桝、マンホール、ボックスカルバート等の雨水排出路から地盤に雨水を浸透させる浸透施設に適用できる。 As an example of the use of the present invention, it can be applied to infiltration facilities that allow rainwater to infiltrate into the ground from rainwater drainage channels such as pipes, manholes, and box culverts.

Δh…流入頂部2aと流入底部2bとの高低差
1…浸透誘導管
1a…壁面
1b…肉厚部(浸透誘導壁)
2…貫通穴
2a…流入頂部
2b…流入底部
3…液体
3a…雨水(液体)
4…雨水浸透施設
5…ボックスカルバート
5a…底版(底部)
5b,5c…側版
5d…天版
5d1…内面(雨水浸透施設4の一部)
6…地盤
7a…浸透穴(開口;排水穴)
7b,7c…浸透穴
8…誘導ユニット
9…管体
9a…嵌入部
9b…堆砂部
10…堆砂
11…フィルタ材
12…天版取付部材
12a…フランジ
13…浸透誘導壁
14…管路
15…砕石
Δh...Difference in height between the inflow top 2a and the inflow bottom 2b 1...Infiltration guide tube 1a...Wall surface 1b...Thick part (infiltration guide wall)
2...Through hole 2a...Inflow top 2b...Inflow bottom 3...Liquid 3a...Rainwater (liquid)
4...Rainwater infiltration facility 5...Box culvert 5a...Bottom plate (bottom)
5b, 5c...Side plate 5d...Top plate 5d1...Inner surface (part of rainwater infiltration facility 4)
6... Ground 7a... Penetration hole (opening; drainage hole)
7b, 7c...Seepage hole 8...Guidance unit 9...Pipe body 9a...Insertion part 9b...Sediment part 10...Sediment 11...Filter material 12...Top plate mounting member 12a...Flange 13...Seepage guide wall 14...Pipeline 15 ...crushed stone

Claims (4)

液体を地盤に排出する浸透穴が形成された液体を収容する施設の内部において、前記浸透穴の上流側に配置される浸透誘導壁であって、
前記浸透誘導壁はこれを貫通する複数の貫通穴を有し、前記貫通穴は、前記液体が移動する上流側から下流側に向かって鉛直方向上方に傾斜して設けられ、
前記貫通穴の前記浸透誘導壁の前記液体が移動する上流側の流入頂部は、前記貫通穴の前記浸透誘導壁の前記液体が移動する下流側の流入底部と等しい位置か、または低い位置に設けられていることを特徴とする浸透誘導壁。
A seepage guide wall disposed on the upstream side of the seepage hole in a facility containing a liquid in which a seepage hole for discharging the liquid into the ground is formed,
The permeation guiding wall has a plurality of through holes passing through it, and the through holes are provided so as to be inclined vertically upward from the upstream side where the liquid moves toward the downstream side,
An inflow top portion of the permeation guide wall of the through hole on the upstream side through which the liquid moves is provided at a position equal to or lower than an inflow bottom portion of the permeation guide wall of the through hole on the downstream side through which the liquid moves. A penetration guiding wall characterized by:
請求項1に記載の浸透誘導壁であって、前記液体を収容する施設は、浸透ボックスカルバート、浸透桝、浸透マンホール、または浸透管であることを特徴とする浸透誘導壁 The seepage guiding wall according to claim 1 , wherein the facility for containing the liquid is a seepage box culvert, a seepage pit, a seepage manhole, or a seepage pipe. 請求項1に記載の前記浸透誘導壁は、前記液体を収容する施設内に鉛直方向に配置される浸透誘導管として構成され、The permeation guiding wall according to claim 1 is configured as a permeation guiding pipe arranged vertically in a facility containing the liquid,
前記貫通穴は前記液体の上流側となる前記浸透誘導管の外側から、前記液体の下流側となる前記浸透誘導管の内側に向かって上方に傾斜して設けられていることを特徴とする浸透誘導管。 The penetration hole is provided so as to be inclined upward from the outside of the penetration guide tube, which is the upstream side of the liquid, toward the inside of the penetration guide tube, which is the downstream side of the liquid. guiding tube.
請求項3に記載の浸透誘導管であって、前記浸透誘導管の外周にフィルタ材を設けたことを特徴とする浸透誘導管 The permeation guide tube according to claim 3, characterized in that a filter material is provided around the outer periphery of the permeation guide tube.
JP2019194907A 2019-10-28 2019-10-28 Infiltration guide wall, infiltration guide pipe, and infiltration facility equipped with the same Active JP7368831B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019194907A JP7368831B2 (en) 2019-10-28 2019-10-28 Infiltration guide wall, infiltration guide pipe, and infiltration facility equipped with the same

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2019194907A JP7368831B2 (en) 2019-10-28 2019-10-28 Infiltration guide wall, infiltration guide pipe, and infiltration facility equipped with the same

Publications (2)

Publication Number Publication Date
JP2021067128A JP2021067128A (en) 2021-04-30
JP7368831B2 true JP7368831B2 (en) 2023-10-25

Family

ID=75636847

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2019194907A Active JP7368831B2 (en) 2019-10-28 2019-10-28 Infiltration guide wall, infiltration guide pipe, and infiltration facility equipped with the same

Country Status (1)

Country Link
JP (1) JP7368831B2 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3144327U (en) 2008-02-29 2008-08-28 久保 金造 Liquid separation / water supply path changer
JP3159729U (en) 2010-01-29 2010-06-03 金造 久保 Water storage tank
JP2015183493A (en) 2014-03-26 2015-10-22 積水化学工業株式会社 Rainwater storage infiltration facility

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59178491U (en) * 1983-05-18 1984-11-29 桜井建材産業株式会社 rainwater seepage
KR100769544B1 (en) * 2007-07-25 2007-10-23 양동훈 Waste collecting and deodorizing chamber for manhole

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3144327U (en) 2008-02-29 2008-08-28 久保 金造 Liquid separation / water supply path changer
JP3159729U (en) 2010-01-29 2010-06-03 金造 久保 Water storage tank
JP2015183493A (en) 2014-03-26 2015-10-22 積水化学工業株式会社 Rainwater storage infiltration facility

Also Published As

Publication number Publication date
JP2021067128A (en) 2021-04-30

Similar Documents

Publication Publication Date Title
JP3935216B2 (en) Total contaminant filter
US6612777B2 (en) Stormwater dispensing chamber
KR100952192B1 (en) Water pocket well for infiltrating a rainwater
US7441661B2 (en) Solids/liquids separator
US10052570B2 (en) Settling basin insert
JP2010265628A (en) Filter for infiltration device and the infiltration device
US20080185325A1 (en) Pollutant Trap
JP7368831B2 (en) Infiltration guide wall, infiltration guide pipe, and infiltration facility equipped with the same
KR100976853B1 (en) Drain box
JP4608366B2 (en) Underdrain drainage structure and rainwater infiltration treatment method
JP5033406B2 (en) Rainwater outflow control facility
KR20140122781A (en) Water tank for water drainage on retaining wall
KR100499612B1 (en) Solid Separation and Filtered water obtainment method by Screen Channel
JP4673923B2 (en) Liquid processing equipment
JP2009097151A (en) Permeable structure
JP2005179919A (en) Facility for storage and percolation of rainwater and the like
JP5283273B2 (en) Osmosis filter structure
KR20040103692A (en) Suspended Material Auto-draw Chamber
JP2012072598A (en) Rainwater disposal facility
CA2953931C (en) Settling basin insert
JP2009074288A (en) Pipe opening filter
AU2001256005B2 (en) Solids/liquids separator
AU2004242447B2 (en) Solids/liquids separator
JP2010185224A (en) Facility for restraining outflow of rainwater
KR101802065B1 (en) Underground structure with underground water storage container

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20220812

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20230510

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20230516

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20230713

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20230912

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20231005

R150 Certificate of patent or registration of utility model

Ref document number: 7368831

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150