JP2826656B2 - Water collection method - Google Patents
Water collection methodInfo
- Publication number
- JP2826656B2 JP2826656B2 JP8213221A JP21322196A JP2826656B2 JP 2826656 B2 JP2826656 B2 JP 2826656B2 JP 8213221 A JP8213221 A JP 8213221A JP 21322196 A JP21322196 A JP 21322196A JP 2826656 B2 JP2826656 B2 JP 2826656B2
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- casing pipe
- water collecting
- resistor
- casing
- 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.)
- Expired - Lifetime
Links
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
Description
【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION
【０００１】[0001]
【発明の属する技術分野】本発明は地すべり防止工法の
中の横孔ボーリング排水による地下水の集水技術に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technique for collecting groundwater by horizontal hole boring drainage in a landslide prevention method.
【０００２】[0002]
【従来の技術】地すべり防止工法の中でシラスや砂質土
層に対する横孔ボーリング排水においては、変動によっ
て緩くなっている移動土塊を掘削するものであるから、
従来工法のように単にケーシングパイプに集水パイプを
挿入して埋設し、予定の計画深度まで埋設後ケーシング
パイプを抜管する方法では、ケーシングパイプと集水パ
イプの空隙に地下水の流動等により土砂が充填され、ケ
ーシングパイプのみを簡易に抜管できない問題を内在し
ていた。2. Description of the Related Art In a landslide prevention method, in draining a horizontal hole in a shirasu or sandy soil layer, a moving earth mass loosened due to fluctuations is excavated.
As in the conventional method, the water collection pipe is simply inserted into the casing pipe and buried, and then buried to the planned depth, and then the casing pipe is removed. There is an inherent problem that only the casing pipe can be easily removed after filling.
【０００３】[0003]
【発明が解決しようとする課題】本発明は上記に鑑み、
集水パイプ挿入後ケーシングパイプを簡易に抜管できる
集水工法と集水パイプを提供するものである。SUMMARY OF THE INVENTION The present invention has been made in view of the above,
It is an object of the present invention to provide a water collecting method and a water collecting pipe in which a casing pipe can be easily removed after the water collecting pipe is inserted.
【０００４】[0004]
【課題を解決するための手段】第１発明の集水工法は、
ケーシングパイプを挿入しながら予定深度までボーリン
グし、該ケーシングパイプを予定深度まで挿入したら、
インナーロッドを抜き取り、次いで、多数の水抜き孔を
周設し、先端を円錐状に閉塞したパイプ本体とと、該パ
イプ本体の先端から所要長さに渡って所定の配設ピッチ
で前記ケーシングパイプの内部を閉塞するに足る直径と
所要幅を有して外周に周設する抵抗体とから成る集水パ
イプを前記ケーシングパイプの内部に挿入し、挿入完了
後、ケーシングパイプを回転させながら徐々に抜管し、
抜管途上で抵抗体相互間に崩壊土砂を充填し、各抵抗体
をアンカー体として集水パイプを定着埋設して成る。The water collecting method according to the first invention comprises:
Boring to the planned depth while inserting the casing pipe, and after inserting the casing pipe to the planned depth,
Withdrawing the inner rod, and then providing a number of drain holes around the pipe body, the tip of which is conically closed, and the casing pipe at a predetermined arrangement pitch over a required length from the tip of the pipe body. A water collecting pipe having a diameter and a required width enough to close the inside of the casing and a resistor provided around the outer periphery is inserted into the casing pipe, and after the insertion is completed, the casing pipe is gradually rotated. Extubation,
During the extubation, the gap between the resistors is filled with collapsed earth and sand, and a water collecting pipe is fixedly buried with each resistor as an anchor.
【０００５】第２発明の集水パイプは、多数の水抜き孔
を周設し、先端を円錐状に閉塞したパイプ本体と、該パ
イプ本体の先端から所要長さに渡って所定の配設ピッチ
で外周に周設する所要径、所要幅の抵抗体とから成る。[0005] A water collecting pipe according to a second aspect of the present invention is provided with a pipe body having a number of drain holes formed around the pipe body and having a tip conically closed, and a predetermined arrangement pitch extending from the tip of the pipe body to a required length. And a resistor having a required diameter and a required width provided around the outer periphery.
【０００６】第３発明の集水パイプは、第２発明の集水
パイプにおいて、抵抗体が螺旋状に周設してされて成
る。A water collecting pipe according to a third aspect of the present invention is the water collecting pipe according to the second aspect of the present invention, wherein a resistor is spirally provided around the water collecting pipe.
【０００７】[0007]
【発明の実施の形態】パイプ本体に周設する多数の水抜
き孔は、直径５mmにして軸心方向に１００mmピッチで４
列千鳥状に配設されるのが好適であり、また、抵抗体は
スポンジなどの弾性材をパイプ本体の外周に接着材で接
着し、幅方向の中央部をバンドで締め付けて凹状の逃げ
部を形成するものや、パイプ本体の外周に溶着したフラ
ンジの前後面に該フランジの外径より大径のスポンジな
どの弾性材を接着材で接着し、両弾性材間に凹状の逃げ
部を形成したもの、或は所要径、所要幅のスポンジなど
の弾性材をパイプ本体の外周に螺旋状に接着材で接着し
たものなどとして提供される。BEST MODE FOR CARRYING OUT THE INVENTION A large number of drainage holes provided around a pipe main body have a diameter of 5 mm and a pitch of 100 mm in the axial direction.
The resistors are preferably arranged in a staggered manner, and the resistor is formed by bonding an elastic material such as sponge to the outer periphery of the pipe body with an adhesive, and tightening a central portion in the width direction with a band to form a concave escape portion. An elastic material such as a sponge having a diameter larger than the outer diameter of the flange is bonded to the front and rear surfaces of the flange welded to the outer periphery of the pipe body with an adhesive, and a concave relief portion is formed between the two elastic materials. Or an elastic material such as a sponge having a required diameter and width is spirally bonded to the outer periphery of the pipe body with an adhesive.
【０００８】[0008]
【実施例】本発明を実施例により具体的に説明すると、
図２に示すように、先ずケーシングパイプ１を挿入しな
がら予定深度（通常５０ｍ）までボーリングし、該ケー
シングパイプ１を予定深度まで挿入したら、インナーロ
ッド（図外）を抜き取り、次いで、図３に示すように、
ケーシングパイプ１の内部には全長に渡って集水パイプ
ａを挿入するものであるが、該集水パイプａは図４に示
すように、多数の水抜き孔２を周設し、先端を円錐状に
閉塞したパイプ本体３と、該パイプ本体３の先端から所
要長さに渡って所定の配設ピッチで外周に周設する所要
径、所要幅のスポンジから成る抵抗体４とから成り、水
抜き孔２は直径５mmにして軸心方向に１００mmピッチで
４列千鳥状に配設され、抵抗体４の所要径はケーシング
パイプ１の内部を閉塞するに足る直径であればよく、そ
の内径面をパイプ本体３の外周面に接着材で接着すると
ともに、幅方向の中央部をバンド５で締め付けて凹状の
逃げ部６を形成して成る。したがって、集水パイプａの
抵抗体４はケーシングパイプ１への挿入時にはスポンジ
の外周がやや逃げ部６へへたりながらスクレーパとして
の働きとともに、シールとしての作用をも呈して、ケー
シングパイプ１の内面とパイプ本体３の外面間に形成さ
れる空隙７への土砂の流入を防止するものである。以上
のように前記空隙７に土砂の流入を防止して、ケーシン
グパイプ１に集水パイプａを挿入するものであるから、
該ケーシングパイプ１の抜管時には、ケーシングパイプ
１の内部における抵抗が軽微なものとなり、簡易に抜管
できるとともに、図５に示すように、各個の抵抗体４と
抵抗体４の間にはケーシングパイプ１の抜管につれて崩
壊土砂８が充填され、各個の抵抗体４はアンカー体の働
きを呈して集水パイプａを固定することとなり、ケーシ
ングパイプ１と共に抜け出ることなく、最終的には図１
に示すように、集水パイプａが安定した状態で地山に埋
設され、水抜き孔２より集水された地下水はパイプ本体
３の吐出口９から排水され、地すべり防止を達成するも
のである。EXAMPLES The present invention will be described more specifically with reference to the following examples.
As shown in FIG. 2, first, while inserting the casing pipe 1, boring is performed to a predetermined depth (normally, 50 m). When the casing pipe 1 is inserted to the predetermined depth, an inner rod (not shown) is pulled out. As shown,
A water collecting pipe a is inserted into the inside of the casing pipe 1 over its entire length. As shown in FIG. A pipe body 3 closed in a shape, and a resistor 4 made of a sponge having a required diameter and a required width, which is provided around the outer circumference at a predetermined arrangement pitch over a required length from the tip of the pipe body 3. The holes 2 have a diameter of 5 mm and are arranged in four rows in a staggered manner at a pitch of 100 mm in the axial direction. The required diameter of the resistor 4 may be a diameter sufficient to close the inside of the casing pipe 1. Is bonded to the outer peripheral surface of the pipe body 3 with an adhesive, and a central portion in the width direction is fastened with a band 5 to form a concave relief portion 6. Therefore, when the resistor 4 of the water collecting pipe a is inserted into the casing pipe 1, the outer periphery of the sponge slightly moves to the escape portion 6 and functions as a scraper and also acts as a seal. This prevents the inflow of earth and sand into the gap 7 formed between the outer surface of the pipe body 3 and the pipe body 3. As described above, the water collecting pipe a is inserted into the casing pipe 1 by preventing the inflow of earth and sand into the gap 7,
When the casing pipe 1 is removed, the resistance inside the casing pipe 1 becomes small, so that the casing pipe 1 can be easily removed, and as shown in FIG. 1 is filled with the collapsed earth and sand 8 and each resistor 4 functions as an anchor body to fix the water collecting pipe a.
As shown in the figure, the groundwater collected from the drain hole 2 is drained from the discharge port 9 of the pipe body 3 to achieve landslide prevention, with the water collection pipe a buried in the ground in a stable state. .
【０００９】次に、図６に示した集水パイプａは、抵抗
体４がパイプ本体３の外周に溶接したフランジ１０と、
該フランジ１０の前後両面に接着材で接着されるスポン
ジとから成り、フランジ１０の外径は挿入されるケーシ
ングパイプ１の内径より小径であることは勿論のことス
ポンジの外径はケーシングパイプ１の内径でやや逃げ部
６へへたりながら密着する程度に該内径より大径であ
る。Next, the water collecting pipe a shown in FIG. 6 has a flange 10 in which the resistor 4 is welded to the outer periphery of the pipe body 3,
A sponge bonded to the front and rear surfaces of the flange 10 with an adhesive material. The outer diameter of the flange 10 is smaller than the inner diameter of the casing pipe 1 into which the sponge is inserted. The inner diameter is larger than the inner diameter to such an extent that the inner diameter is slightly in contact with the escape portion 6 while being tightly contacted.
【００１０】また、図７に示した集水パイプａは、スポ
ンジから成る抵抗体４がパイプ本体３の外周に螺旋状に
その内径面を接着材で接着して成るものであり、この場
合のケーシングパイプ１の抜管時には、抵抗体４の螺旋
方向と逆方向に該ケーシングパイプ１を回転させるのが
好適である。A water collecting pipe a shown in FIG. 7 has a structure in which a resistor 4 made of a sponge is spirally bonded to the outer periphery of a pipe body 3 with an adhesive at an inner diameter surface thereof. When removing the casing pipe 1, it is preferable to rotate the casing pipe 1 in a direction opposite to the spiral direction of the resistor 4.
【００１１】[0011]
【発明の効果】以上のように本発明によれば、ケーシン
グパイプ１への集水パイプａの挿入時に、該ケーシング
パイプ１の内面とパイプ本体３の外面間に形成する空隙
７に土砂を流入させることがなくケーシングパイプ１の
抜管時の抵抗が軽微である上、抜管につれて各個の抵抗
体４がアンカー体の働きをして集水パイプａを安定的に
固定することとなり、極めて簡易にケーシングパイプ１
を抜管できるものである。As described above, according to the present invention, when the water collecting pipe a is inserted into the casing pipe 1, earth and sand flows into the gap 7 formed between the inner surface of the casing pipe 1 and the outer surface of the pipe body 3. The resistance at the time of removing the casing pipe 1 is negligible, and each resistor 4 acts as an anchor body to stably fix the water collecting pipe a as the casing pipe 1 is removed. Pipe 1
Can be extubated.
【図１】本発明に係わる集水工法で集水パイプａを地山
に埋設した状態の説明図。FIG. 1 is an explanatory view showing a state in which a water collecting pipe a is buried in a ground by a water collecting method according to the present invention.
【図２】ケーシングパイプ１を地山に挿入した状態の説
明図。FIG. 2 is an explanatory view of a state where a casing pipe 1 is inserted into a ground.
【図３】ケーシングパイプ１の内部に集水パイプａを挿
入した状態の説明図。FIG. 3 is an explanatory view showing a state where a water collecting pipe a is inserted into a casing pipe 1.
【図４】集水パイプａの先端部の説明図。FIG. 4 is an explanatory view of a distal end of a water collecting pipe a.
【図５】ケーシングパイプ１の抜管状態の説明図。FIG. 5 is an explanatory diagram of a state where the casing pipe 1 is removed.
【図６】集水パイプａの他の実施例を示す説明図。FIG. 6 is an explanatory view showing another embodiment of the water collecting pipe a.
【図７】集水パイプａの他の実施例を示す説明図。FIG. 7 is an explanatory view showing another embodiment of the water collecting pipe a.
１ ケーシングパイプ ２ 水抜き孔 ３ パイプ本体 ４ 抵抗体 ５ バンド ６ 逃げ部 ７ 空隙 ８ 崩壊土砂 ９ 吐出口 １０ フランジ ａ 集水パイプ DESCRIPTION OF SYMBOLS 1 Casing pipe 2 Drain hole 3 Pipe main body 4 Resistor 5 Band 6 Escape part 7 Void 8 Collapsed earth and sand 9 Discharge port 10 Flange a Water collecting pipe
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) E02D 3/10 101 E02B 11/00 E02D 17/20 106──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 6 , DB name) E02D 3/10 101 E02B 11/00 E02D 17/20 106
Claims (1)
度までボーリングし、該ケーシングパイプを予定深度ま
で挿入したら、インナーロッドを抜き取り、次いで、多
数の水抜き孔を周設し、先端を円錐状に閉塞したパイプ
本体と、該パイプ本体の先端から所要長さに渡って所定
の配設ピッチで前記ケーシングパイプの内部を閉塞する
に足る直径と所要幅を有して外周に周設する抵抗体とか
ら成る集水パイプを前記ケーシングパイプの内部に挿入
し、挿入完了後、ケーシングパイプを回転させながら徐
々に抜管し、抜管途上で抵抗体相互間に崩壊土砂を充填
し、各抵抗体をアンカー体として集水パイプを定着埋設
し、共ずれすることなくケーシングパイプのみを簡易に
抜管できることを特徴とする集水工法。1. When boring to a predetermined depth while inserting a casing pipe, when the casing pipe is inserted to the predetermined depth, an inner rod is removed, and then a number of drain holes are provided in the periphery, and the tip is closed in a conical shape. And a resistor having a diameter and a required width sufficient to close the inside of the casing pipe at a predetermined arrangement pitch over a required length from the tip of the pipe body to a peripheral portion thereof. The water collecting pipe is inserted into the casing pipe, and after the insertion is completed, the casing pipe is gradually removed while rotating, and the collapsed soil is filled between the resistors during the removal, and each resistor is used as an anchor body. A water collection method characterized in that a water collection pipe is fixedly buried and only the casing pipe can be easily removed without shifting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8213221A JP2826656B2 (en) | 1996-07-23 | 1996-07-23 | Water collection method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8213221A JP2826656B2 (en) | 1996-07-23 | 1996-07-23 | Water collection method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1037174A JPH1037174A (en) | 1998-02-10 |
| JP2826656B2 true JP2826656B2 (en) | 1998-11-18 |
Family
ID=16635547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8213221A Expired - Lifetime JP2826656B2 (en) | 1996-07-23 | 1996-07-23 | Water collection method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2826656B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4738836B2 (en) * | 2005-02-21 | 2011-08-03 | 千代田工営株式会社 | Sloped ground stabilizer and sloped ground stabilization method |
| JP5340067B2 (en) * | 2009-07-27 | 2013-11-13 | 株式会社ケー・エフ・シー | Embankment reinforcement structure |
| JP5595137B2 (en) * | 2010-06-18 | 2014-09-24 | 新日鉄住金エンジニアリング株式会社 | Landslide prevention method |
| JP6372949B2 (en) * | 2015-10-20 | 2018-08-15 | 株式会社建設技術研究所 | Permeable filtration device, retaining wall provided with permeable filtration device, and insertion method of permeable filtration device |
| CN112064647A (en) * | 2020-09-08 | 2020-12-11 | 四川盛唐建设工程有限公司 | Expanded land area foundation pit supporting pressure relief device |
| CN114321733B (en) * | 2022-01-12 | 2023-11-21 | 辛集市建投燃气有限公司 | Water pumping device for fuel gas vertical pipe |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62196234U (en) * | 1986-06-04 | 1987-12-14 | ||
| JPH01111732U (en) * | 1988-01-22 | 1989-07-27 |
-
1996
- 1996-07-23 JP JP8213221A patent/JP2826656B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1037174A (en) | 1998-02-10 |
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