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WO/1990/007611A1 |
A civil engineering device which can be used, in particular, for laying vertical drains, of the kind comprising a carrying frame (14), a mobile tool carrying system (28) and means integral with the frame for vertically guiding the mobile...
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WO/1987/005646A1 |
The apparatus is provided with a conventional frame (2), earth splitting tool (9, 20), laying head (10) formed as hollow wingtype subsoiler, pipe and plastic tape storage drums (15, 16) and, according to the invention, guiding elements (...
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WO/1986/001552A1 |
Ground drainage method comprising the connection of a perforated conduit (10), in intimate contact with the porous underground (5) and winding up and down in a same plane parallel to the ground, with a pumping station (101) capable of op...
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WO/1984/002937A1 |
Draining device for draining water including a vessel-shaped member (1) with an opening turned downwards and a pipe extending through the walls of the vessel-like means and inside this provided with holes (5) turned upwards for the entra...
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WO/1984/001590A1 |
In a sea or a lake or another body of water, sedimentation (12, 35, 50) of sedimentary solid material may be obtained in desired areas by reducing the hydraulic pressure in the sea floor or lake bottom layer in the said area. Such reduct...
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WO/1983/002790A1 |
Drainage devices for sub-terranean drainage, the devices comprising a core (2) of cuspated plastics sheet material covered by a web (12) of geotextile. The devices are made in sheet or strip form and specific examples of applications are...
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WO/1981/003354A1 |
A procedure for creating a vertical drain by pushing into the ground an insertion tube (7) housing within itself a so-called prefabricated drain (9), by pulling out the insertion tube and cutting off the prefabricated drain. The prefabri...
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WO/1981/002317A1 |
A method of burying a wire, a tube or a cable under the ground in an efficient manner. A borer (1) is disposed under the ground and bores a passage by moving a boring machine (2) in a predetermined direction. A continuous planar plastic ...
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WO/1981/001579A1 |
An arrangement relating to a drainage pipe (1) having inlet holes (2) for water and a separation wall (3) between an inlet and an outlet section of the pipe, the inlet section of the pipe having an array of said holes (2) in one half of ...
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WO/1981/001580A1 |
An arrangement related to a drainage pipe (2) provided with inlet holes (3) for water, said holes (3) being positioned on the upper half of the drainage pipe (2) and the drainage pipe being fully or partly covered by a jacket or exterior...
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WO/1981/001433A1 |
For the ditching of drains normally various types of excavating machines are used. This involves problems, however, especially when the ground has poor carrying capacity, for example in wet lands. According to the invention, therefore, a...
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WO/1980/001196A1 |
Foldable arched conduit (A) suitable for use as drain tubing, culverts and the like. The conduit has the cross section of a parabolic arch with a flat base (D). The arched portion of the conduit comprises a pair of rigid corrugated plast...
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WO/1980/001180A1 |
A drain pipe consisting of an outer pipe casing (1), which downwardly or on the lower surface is provided in the longitudinal direction with a recess, from which two partition walls (3, 4) extend upward and are connected at the upper end...
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JP7457776B1 |
An object of the present invention is to provide a construction method for a temporary drainage ditch that is easy to construct and remove, and can stably drain rainwater flowing through the temporary drainage ditch even during heavy rai...
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JP7434701B2 |
To provide a field vertical passage forming device capable of holding the drainage and breathability of a field still more satisfactorily, improving the drainage, managing water, drying a paddy field, activating microorganism breeding, a...
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JP2024017461A |
[Problem] It can be installed on a 4WS management machine, has excellent followability of the groove cutting blade both when traveling in a straight line and when turning, and allows continuous grooves to be formed on the field surface w...
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JP7423009B2 |
To provide a culvert pipe burying apparatus which enables a farmer to simply and quickly construct culvert drainage in a farmland.A culvert pipe burying apparatus 1 has a front blade 10 and a rear blade 12 arranged mutually back and fort...
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JP3244879U |
An object of the present invention is to provide a device that prevents pipes from rising during pouring of fresh concrete during concrete wrapping work for underdrain drainage pipes in pipe work. [Solution] This is a nozzle head consist...
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JP7393704B2 |
Provided are a water level adjustment earth tank system, a drainage tank, and a water level adjustment method with which the water level in a ground material filled in an earth tank can be adjusted. This water level adjustment earth tank...
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JP2023125327A |
To provide a construction method of a vertical hole drain channel capable of guiding runoff on a soil surface and seepage in the soil.A construction method of a vertical hole drain channel includes the steps of: providing a plurality of ...
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JP7326188B2 |
To provide a water channel opening/closing device of a farm field in which an installation site of a water gauge unit can be widely selected.A water channel opening/closing device 3 comprises: a valve body unit 4 which is connected to a ...
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JP2023112791A |
To provide a culvert construction device capable of constructing culvert drainage with a tractor used by a farmer.A culvert construction device comprises: a vertical cut blade 21; a curved cut blade 22; an inner side soil lifting member ...
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JP7293546B2 |
To provide an agricultural drainage device that can reduce malfunctions caused by a partition being solidified by cultivated soil.An agricultural drainage device includes a drainage unit having a partition whose drainage height can be se...
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JP2023081462A |
To provide a renovation structure for an existing covered conduit preventing a renovation pipe from floating up through buoyancy by residence of water having intruded around the renovation pipe of the existing covered conduit with locati...
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JP7281766B2 |
To provide a crushed stone transfer device capable of transferring a predetermined amount of crushed stones over a long distance of a crushed stone charged groove.A crushed stone transfer device 11 includes a crushed stone mounting base ...
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JP7277313B2 |
To provide a sluice that can be positioned so that the position of an upper end is almost the same as the position of the surface of a ridge, and the water level required for the agricultural land can be adjusted.A sluice of the present ...
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JP3241850U |
The object of the present invention is to facilitate the construction of connecting an underdrain drain pipe to a water channel adjacent to a paddy field without requiring a dedicated machine or skill when it is desired to improve the dr...
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JP7229830B2 |
To provide a conversion method of farmland converting farmland from a paddy field to a dry field by using a water level adjustment system considering soil preparation.A conversion method of farmland converting farmland used as a paddy fi...
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JP7228939B1 |
An object of the present invention is to provide an epoch-making method for constructing an underground drainage structure and a drainage structure, which have never existed before. A drainage system comprising a tubular moisture passage...
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JP7228441B2 |
To provide a conversion method of farmland converting farmland from a dry field to a paddy field by using a water level adjustment system considering soil preparation.A conversion method of farmland converting farmland used as a dry fiel...
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JP7212338B1 |
[PROBLEMS] To provide an underdrain function recovery machine for recovering a drainage function by excavating a soil layer around an underdrain pipe. A frame (10) attached to a towing vehicle (2), ground reference wheels (20) arranged o...
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JP2022182585A |
To provide a lightweight banking structure which facilitates a removal work of a foam block assembly.A lightweight banking structure S includes a substrate G, and a foam block assembly A in which a plurality of foam block layers composed...
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JP7170266B2 |
To provide a waste channel formation device having a structure towable by a general tractor, even in an extremely glutinous clay field.A device towed by a tractor 14, for forming a rice husk underdrain in the ground of a field, includes ...
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JP7148294B2 |
To provide a flow control device capable of reducing load applied to an electric actuator and properly supplying water to fields or draining from the fields.A flow control device 10 has a soft pipe 12 connected to a water leading port 10...
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JP7128563B2 |
To provide an opening/closing device which achieves improvement of design flexibility while achieving downsizing.An opening/closing device 40 is a device which opens or closes a pipe 63 and includes: a support member 44 disposed above th...
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JP7104963B2 |
To provide a nonwoven fabric which is high in basis weight and breathability, and which is not easily compressed in a thickness direction while maintaining inter-fiber voids.A laminated long-fiber nonwoven fabric is obtained by laminatin...
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JP7099718B2 |
To provide an opening/closing device which achieves improvement of design flexibility while achieving downsizing.An opening/closing device 40 is a device which opens or closes a pipe 63 and includes: a support member 44 disposed above th...
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JP2022099088A |
To provide a culvert pipe laying device capable of simultaneously performing formation of a drain groove and laying of a culvert pipe, while maintaining a structure of a farm field.A culvert pipe laying device comprises: a culvert pipe g...
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JP7088536B2 |
To provide hydrophobic material for a covered conduit and a production method thereof as well as a covered conduit made of hydrophobic material for the covered conduit replaceable as new and cheap hydrophobic material and capable of enha...
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JP2022085274A |
To provide a method of using an underdrain pipe laying device and an underdrain pipe laying device that can perform underdrain construction that requires a water gradient at low cost, accurately, and efficiently.An underdrain pipe laying...
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JP7072837B2 |
To provide a construction method for covered conduit using no material and a work machine for covered conduit construction using no material capable of easily and rapidly constructing a covered conduit using no material with good drainag...
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JP7064242B2 |
To provide a hydrophobic material adding method and device that can reliably add a hydrophobic material such as chaff into existing culverts with drainage slopes.The present invention is a method for adding a hydrophobic material 13 alon...
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JP2022049990A |
To provide a groove-cutting part of a paddy field groove-cutting machine which can easily drop mud accumulated on a closing lid, and facilitates cleaning in a groove-cutting part.Mud accumulated on a closing lid 7x can be easily dropped ...
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JP7041012B2 |
To provide a water level adjustment device for paddy field which can set a water level of a paddy field with a simple operation, and can suppress unexpected displacement of a set position of the water level.The water level adjustment dev...
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JP2022033380A |
To provide a connection mechanism of a work machine capable of increasing a lifting height of the work machine, while suppressing enlargement of devices.A connection mechanism 3 for connecting a mole drainer 2 to a tractor 1, includes a ...
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JP7015196B2 |
To provide a water supply automatic cut-off device for a farm field capable of reducing labor and time for maintenance.A water supply automatic cut-off device 3 comprises: a water gauge unit 4 for detecting increase of water level in a f...
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JP7010434B2 |
To provide a chaff filling device for a covered conduit allowing chaff to be easily and securely filled into an existing curved and covered conduit for chaff.A chaff filling device 11 for a covered conduit filling to supplement and fill ...
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JP6995964B2 |
To provide an underdrain forming device comprising a rice husk introduction guide member, which has an introduction guide slope that can introduce rice husks falling from a supply path member and allow the rice husks to collide against e...
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JP6987857B2 |
Provided are: a water gate which can be prevented from obstructing walking or travel that takes place on a levee and can reliably and smoothly discharge water; and a discharge method for the water gate. This water gate 10 is provided wit...
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JP2021534341A |
Rods for collecting or transporting water are configured to create a capillary space between the rod and other similarly shaped rods when such rods are adjacent to each other. The rod has a cross-sectional shape in which one surface port...
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