WO2013084303A1 - Installation pour le transport par aspiration de sédiments subaquatiques, et procédé de capture de corps étrangers - Google Patents

Installation pour le transport par aspiration de sédiments subaquatiques, et procédé de capture de corps étrangers Download PDF

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Publication number
WO2013084303A1
WO2013084303A1 PCT/JP2011/078212 JP2011078212W WO2013084303A1 WO 2013084303 A1 WO2013084303 A1 WO 2013084303A1 JP 2011078212 W JP2011078212 W JP 2011078212W WO 2013084303 A1 WO2013084303 A1 WO 2013084303A1
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WO
WIPO (PCT)
Prior art keywords
suction
underwater
suction pipe
mesh screen
opening
Prior art date
Application number
PCT/JP2011/078212
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English (en)
Japanese (ja)
Inventor
橋本　徹
順彦 山形
Original Assignee
ヤコブセン トム
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 ヤコブセン トム filed Critical ヤコブセン トム
Priority to PCT/JP2011/078212 priority Critical patent/WO2013084303A1/fr
Priority to JP2013547992A priority patent/JP5893643B2/ja
Priority to TW101145591A priority patent/TW201335468A/zh
Publication of WO2013084303A1 publication Critical patent/WO2013084303A1/fr

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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
    • E02B8/02—Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material

Definitions

  • the present invention relates to an underwater sediment suction and flow facility in a water storage facility such as a dam or a reservoir, and a foreign matter capturing method in the underwater sediment suction and flow in a water storage facility.
  • dam sedimentation has become a serious problem, and its efficient treatment is necessary to maintain the usage capacity of dams, reservoirs and reservoirs, and to extend the service life.
  • underwater sediment an underwater sediment, sediment, or accumulation
  • the pipe with the opening is buried and the opening at the upstream end or the upstream part is located in the water, so that the water entering from the opening at the upstream end or the upstream part flows in the pipe.
  • There has already been proposed a method and an apparatus therefor for sucking out underwater deposits around the opening into the pipe by the negative pressure generated in the pipe, and the equipment therefor see, for example, Patent Documents 1 and 2).
  • FIG. 1 the outline of this method and equipment already proposed can be illustrated in FIG.
  • the open end 2 b of the suction pipe 2 having an opening 2 a on the lower side is projected into the water above the underwater deposit D, and a discharge pipe connected to the suction pipe 2. 3 is provided downstream.
  • the underwater deposit D is sucked from the open end 2b and the opening 2a of the suction pipe 2, flows to the downstream discharge pipe 3, and is discharged.
  • the underwater deposit D deposited on the upper portion of the suction pipe 2 is sucked at the suction point P of the opening 2a of the suction pipe 2 while causing the slope collapse in a mortar shape.
  • the suction point P naturally proceeds sequentially from the upstream side to the downstream side of the suction pipe 2, and the mortar-shaped slope also proceeds from the upstream to the downstream to form a recess.
  • Patent Documents 1 and 2 are epoch-making, according to the subsequent study by the present inventor, there is a problem to perform suction flow of underwater sediment more reliably and stably. Has been found.
  • the protective enclosure needs to employ a material and a structure that can support the foreign matter clogged in the lattice and the weight of the earth and sand deposited on the protective enclosure by the foreign matter, so that it is difficult to suppress the cost.
  • the method of removing the foreign matter in the region where the mortar-shaped recess is formed in the vicinity of the opening 2a of the suction tube 2 has the above-described problems.
  • the present invention has been made in view of the circumstances as described above, and sucks underwater deposits by capturing the foreign matter in the stored water at a shallow depth by pre-treatment before entering the mortar-shaped concave region.
  • Improved suction flow-feeding equipment and foreign-matter capturing method that can prevent the suction tube from being blocked by foreign matter at low cost and can easily check and remove foreign matter. It is an issue to provide.
  • the suction flow facility of the present invention is a suction flow facility for underwater deposits in a water storage facility, and is connected to the suction pipe having an opening on the lower side, and the sucked underwater deposits are connected to the suction pipe.
  • the mesh screen is preferably formed of a flexible material.
  • a floater is disposed on the mesh screen.
  • a fixed member is disposed on the mesh screen.
  • the foreign matter capturing method of the present invention is a foreign matter capturing method for sucking and flowing underwater deposits in a water storage facility, and a suction pipe having an opening on the lower side is disposed on the upstream side and connected to the suction pipe.
  • the exhaust pipe that discharges the sucked underwater deposit is arranged downstream, the open end of the suction pipe protrudes into the water above the underwater deposit, and the concave portion of the underwater deposit above the suction pipe is sucked
  • the underwater deposit that can be sucked from the opening of the suction tube passes through the mesh screen and accumulates in the recess, while the suction tube
  • the foreign matter that cannot be sucked from the opening is captured by the mesh screen.
  • the suction pipe can be easily blocked at a low cost and foreign matter can be easily confirmed and removed.
  • FIG. 1 An embodiment of the suction flow facility of the present invention will be described along a schematic diagram of a side cross section in FIG. 1 and a schematic diagram from above in FIG. 2.
  • the suction flow facility 1 sucks and discharges the underwater sediment D under the water surface W in a water storage facility such as a multipurpose dam, a sabo dam or a reservoir.
  • the suction flow facility 1 includes a suction pipe 2, a discharge pipe 3 connected to the suction pipe 2, and a mesh screen 4.
  • the suction pipe 2 is located on the upstream side.
  • the cross-sectional shape of the suction tube 2 can be appropriately designed into a circular shape, a rectangular shape, or the like.
  • the underwater deposit D1 exists around the suction pipe 2, the underwater deposit is not deposited on the upper side, and the concave portion H is formed.
  • the open end 2b of the suction pipe 2 is designed to always protrude into the water above the underwater deposit.
  • the suction tube 2 is provided with a plurality of openings 2a on the lower side.
  • the opening 2a can be provided continuously or intermittently, and the shape of the opening 2a can be appropriately designed to be a circle, a rectangle, an ellipse or the like.
  • the diameter of the suction tube 2, the size and number of the openings 2a, the interval between the openings 2a, and the like can be appropriately designed as long as the underwater sediment D can be continuously sucked.
  • the contents of Japanese Patent Application Laid-Open No. 2005-16294 that has been filed by the present inventor can be considered.
  • the material of the suction pipe 2 can be appropriately selected from metals such as steel pipes, lining steel pipes and cast iron pipes, and various polymer materials such as vinyl chloride and high-density polyethylene.
  • the discharge pipe 3 is connected to the suction pipe 2 and is located downstream of the suction pipe 2. Further, the discharge pipe 3 is disposed so that the open end 3a is located outside the dam body T through the dam body T such as a dam or a weir. Similar to the cross-sectional shape of the suction tube 2, the cross-sectional shape of the discharge tube 3 can be appropriately designed to have a circular shape, a square shape, or the like.
  • the material of the discharge pipe 3 can be appropriately selected from metals such as steel pipes, lining steel pipes and cast iron pipes, and various polymer materials such as vinyl chloride and high-density polyethylene.
  • the mesh screen 4 covers the mortar-shaped recess H from above in the vicinity of the water surface W above the suction pipe 2.
  • a material in which a string-like material having flexibility such as a wire or a rope is knitted in a mesh shape can be used.
  • the mesh screen 4 has a size that can cover the mortar-shaped recess H in consideration of the region of the mortar-shaped recess H formed as the underwater sediment D is sucked by the suction pipe 2. can do.
  • the mesh screen 4 is preferably capable of covering the entire area of the mortar-shaped recess H, but considering the flow of earth and sand toward the recess H, etc. It may cover the area of the part.
  • the mesh size of the mesh screen 4 is designed to capture a foreign material M (shown in FIGS. 3 and 4) having a size that may block the opening 2a of the suction tube 2.
  • the “foreign matter” refers to driftwood, waste, stone, dust, or the like that is difficult to suck from the opening 2a of the suction tube 2 and may block the opening 2a of the suction tube 2.
  • the mesh screen 4 is provided with a plurality of fixing members 5 over the entire outer periphery.
  • the mesh screen 4 is securely fixed by the fixing member 5 so as to cover the entire mortar-shaped recess H of the underwater deposit D, and floating, movement, and the like are suppressed.
  • the fixing member 5 for example, an anchor or a weight can be preferably exemplified.
  • a floater 6 is disposed on the mesh screen 4.
  • the number and position of the floaters 6 can be designed as appropriate.
  • a plurality of floaters 6 are preferably disposed near the center of the mesh screen 4.
  • FIG. 3 is a schematic side cross-sectional view illustrating an embodiment of the suction flow facility of the present invention, and illustrates a state in which deposits in water are deposited in the recesses and foreign matters are captured.
  • FIG. 4 illustrates a state in which deposits in water are deposited in the recesses and foreign matters are captured in the cross section taken along the line A-A ′ in FIG. 2.
  • the suction pipe 2 and the discharge pipe 3 are installed at the bottom of the mortar-shaped recess H.
  • the net-like screen 4 covers the whole area of the mortar-shaped recess H from above, and is kept at a shallow depth of water far above the suction pipe 2.
  • the earth and sand that can be sucked from the opening 2a of the suction pipe 2 passes through the mesh screen. Then, it deposits in the recess H as an underwater deposit D2.
  • the open end 2b of the suction pipe 2 protrudes into the water above the underwater deposits D1 and D2, and the region excluding the vicinity of the open end 2b of the suction pipe 2 is submerged in the recess H. It will be buried in the deposit D2.
  • the foreign matter M that cannot be sucked from the opening 2a of the suction pipe 2 and may be blocked cannot pass through the mesh screen 4 and is captured. Therefore, the foreign matter M having a shape and size that cannot be sucked by the suction pipe 2 does not exist in the underwater deposit D2 deposited in the region of the recess H.
  • the suction force is automatically adjusted over the entire length of the suction pipe 2 without using any control equipment.
  • the underwater sediment D when the underwater sediment D is sucked and discharged by the suction flow facility 1, the underwater deposit above the suction pipe 2 deposited in the region of the recess H as illustrated by the broken line in FIG. 3.
  • the mortar-shaped recess H expands from the upstream side to the downstream side (in the direction of the arrow in FIG. 3) while causing the slope collapse in a mortar shape.
  • the mortar-shaped recess H is formed in a wide range corresponding to the length of the suction tube 2 and is in the state illustrated in FIG. 1 again.
  • the foreign matter M is also captured by the mesh screen 4 by the suction and discharge of the underwater deposit D2 by the suction flow facility 1, and the underwater deposit D2 deposited in the region of the concave portion H includes: There is no foreign matter M that cannot be sucked by the suction pipe 2. For this reason, the opening 2a of the suction pipe 2 is not blocked by the foreign matter M, and the continuity between the suction of the underwater deposit D2 by the suction pipe 2 and the discharge of the underwater deposit D2 from the discharge pipe 3 is reliably maintained. Is done.
  • the mesh screen 4 is kept at a shallow depth in the water far above the suction pipe 2.
  • the mesh screen 4 is more reliably maintained at a shallow depth by the buoyancy of the floater 6.
  • a strong structure capable of withstanding the weight of the foreign matter M and the underwater sediment accumulated by the foreign matter M is required at a deep water depth, but the reticulated screen 4 of the suction flow facility 1 is disposed at a shallow water depth. Thus, only the foreign matter M is captured.
  • the sand or the like that can be sucked by the suction pipe 2 passes through the mesh screen 4 and accumulates in the mortar-shaped recess H as an underwater deposit D2, and is then sucked by the suction pipe 2.
  • the mesh screen 4 does not need to be strong, and can be formed of a flexible and inexpensive material such as a wire or a rope, so that the manufacturing cost can be kept low.
  • the mesh screen 4 is located at a shallow depth, it is easy to confirm the trapped foreign matter M, and it is possible to easily and appropriately determine the time when the foreign matter M is removed and collected.
  • the mesh screen 4 is in a shallow position, the foreign matter M can be easily removed.
  • the foreign matter M captured together with the mesh screen 4 can be collected by winding or lifting the mesh screen 4 on land by a machine. Since there is little influence by the weight of the foreign matter M and the deposit in the water deposited by the foreign matter M, the reticulated screen 4 can be easily rolled up (pulled up). Then, after removing the trapped foreign matter M from the mesh screen 4, the mesh screen 4 can be installed again above the suction pipe 2. The re-installation of the mesh screen 4 can be easily performed.
  • the timing of installing the mesh screen 4 is preferably before the underwater deposit D2 is deposited in the recess above the suction pipe 2.
  • the mesh screen 4 is fixed to an anchor or the like. It is preferable that the fixing member 5 is fixed to the outer periphery of the concave portion H to cover the entire concave portion H from above, and the floater 6 is made to float the central region of the mesh screen 4. As a result, as illustrated in FIGS.
  • the earth and sand that can be sucked from the suction pipe 2 passes through the mesh screen 4 and accumulates as an underwater deposit D ⁇ b> 2 in the recess above the suction pipe 2.
  • the foreign matter M that cannot be sucked by the suction pipe 2 can be captured on the mesh screen 4 in advance. Then, by sucking the underwater deposit D2 in which no foreign matter M exists with the suction pipe 2, the mortar-shaped concave portion H illustrated in FIG. 1 is formed again, and then, for example, the mesh screen 4 is recovered.
  • the foreign matter M is removed, and the reticulated screen 4 can be installed in the recess H before the underwater deposit D2 is deposited again in the recess H above the suction pipe 2.
  • the suction flow facility of the present invention is not limited to the above form, and various forms are possible.
  • the laying shape of the suction pipe and the discharge pipe is not limited to a straight line and can be arbitrarily meandered.
  • a plurality of suction pipes can be laid in the middle of the suction pipe.
  • the suction pipe and the discharge pipe can be provided with a water intake pipe for adjusting the pressure in the pipe.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Barrages (AREA)

Abstract

Toutes les régions d'un creux de sédimentation subaquatique se situant au-dessus d'un tube d'aspiration sont couvertes par le haut par une grille réticulaire, qui permet de capturer les corps étrangers ne pouvant pas être aspirés dans une ouverture du tube d'aspiration, pendant que les sédiments subaquatiques pouvant être aspirés dans l'ouverture dudit tube traversent la grille réticulaire et s'accumulent à l'intérieur du creux.
PCT/JP2011/078212 2011-12-06 2011-12-06 Installation pour le transport par aspiration de sédiments subaquatiques, et procédé de capture de corps étrangers WO2013084303A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2011/078212 WO2013084303A1 (fr) 2011-12-06 2011-12-06 Installation pour le transport par aspiration de sédiments subaquatiques, et procédé de capture de corps étrangers
JP2013547992A JP5893643B2 (ja) 2011-12-06 2011-12-06 水中堆積物の吸引流送設備および異物の捕捉方法
TW101145591A TW201335468A (zh) 2011-12-06 2012-12-05 水中堆積物之吸引流送設備及異物之捕集方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2011/078212 WO2013084303A1 (fr) 2011-12-06 2011-12-06 Installation pour le transport par aspiration de sédiments subaquatiques, et procédé de capture de corps étrangers

Publications (1)

Publication Number Publication Date
WO2013084303A1 true WO2013084303A1 (fr) 2013-06-13

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PCT/JP2011/078212 WO2013084303A1 (fr) 2011-12-06 2011-12-06 Installation pour le transport par aspiration de sédiments subaquatiques, et procédé de capture de corps étrangers

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JP (1) JP5893643B2 (fr)
TW (1) TW201335468A (fr)
WO (1) WO2013084303A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016075084A (ja) * 2014-10-07 2016-05-12 四国水道工業株式会社 取水装置
JP2017133170A (ja) * 2016-01-25 2017-08-03 井上　虎男 覆水路を用いた揚砂揚泥装置
JP2020037864A (ja) * 2016-01-25 2020-03-12 井上　虎男 分割した縦水路の揚泥装置

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108392859B (zh) * 2018-05-10 2023-08-22 中建三局第二建设工程有限责任公司 一种可循环使用的钢制沉淀池

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002294677A (ja) * 2001-03-30 2002-10-09 Kowa Engineering Kk 静水圧を利用した水中堆積物の流送方法と開口付きパイプ並びに水中堆積物の流送設備
JP2003261924A (ja) * 2002-03-07 2003-09-19 Ishikawajima Harima Heavy Ind Co Ltd 貯水池の排砂方法及び排砂設備

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000104235A (ja) * 1998-09-28 2000-04-11 Daiwabo Co Ltd 大気圧載荷工法用立体網状ドレーン材
JP4461275B2 (ja) * 2003-11-20 2010-05-12 株式会社小島組 土砂排出方法および土砂排出作業船
JP2007217991A (ja) * 2006-02-17 2007-08-30 Koichi Harada 浚渫装置および浚渫方法
WO2012117449A1 (fr) * 2011-03-02 2012-09-07 東北電力株式会社 Système de traitement marin de matières étrangères
JP5717564B2 (ja) * 2011-07-07 2015-05-13 電源開発株式会社 水中堆積物の吸引搬送装置及び水中堆積物の吸引搬送方法

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002294677A (ja) * 2001-03-30 2002-10-09 Kowa Engineering Kk 静水圧を利用した水中堆積物の流送方法と開口付きパイプ並びに水中堆積物の流送設備
JP2003261924A (ja) * 2002-03-07 2003-09-19 Ishikawajima Harima Heavy Ind Co Ltd 貯水池の排砂方法及び排砂設備

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016075084A (ja) * 2014-10-07 2016-05-12 四国水道工業株式会社 取水装置
JP2017133170A (ja) * 2016-01-25 2017-08-03 井上　虎男 覆水路を用いた揚砂揚泥装置
JP2020037864A (ja) * 2016-01-25 2020-03-12 井上　虎男 分割した縦水路の揚泥装置

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Publication number Publication date
JP5893643B2 (ja) 2016-03-23
TW201335468A (zh) 2013-09-01
JPWO2013084303A1 (ja) 2015-04-27

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