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JP3860029 |
To provide a permeable check dam and a manufacturing method therefor, which can inhibit the downstream flow of earth and rocks only in an abnormal deluge while maintaining prescribed strength or above, and which enable the provision of a...
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JP3859328 |
To provide a sluice gate which can surely prevent the leaking of water through mating surfaces even if the shrinkage rate of materials is great. A wooden sluice gate comprises a flat gate main body 2 formed by fastening a plurality of st...
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JP2006257780 |
To provide a gate opening and closing device capable of automatically opening and closing a gate by simple equipment even an installation place without having waterworks facilities.The gate opening and closing device is equipped with a d...
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JP2006257652 |
To provide a rise/fall type waterproof door with high storability, which reduces the weight of equipment, and which satisfies passability and landscape properties in ordinary cases, and pressure resistance and confidentiality in an emerg...
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JP2006257824 |
To provide a device for preventing eddy intake of a gate with a pump, in which an eddy is prevented from being generated on a water surface on an intake side of the pump by a float put on the water surface of the intake side of the pump ...
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JP2006257831 |
To provide an automatic operation control circuit of rise/fall type automatic gate equipment, which enables an automatic fall/rise operation to be performed depending on the state of the water level of a waterway, and which enables the a...
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JP2006257841 |
To provide a tidal wave sluice enabling the saving of cost and time, less constrained with respect to site location, securely functioning, not providing risk to an operator, and suppressing adverse effect on river flows, industrial activ...
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JP2006257829 |
To facilitate an opening/closing operation, and to dispense with a human operation in an emergency.In this equipment, a directional control valve 24, which switches hydraulic oil, supplied from a hydraulic pump 25, in the expansion direc...
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JP2006257873 |
To provide water shielding membrane lifting type selective intake equipment, liftable while accurately guiding a water shielding membrane of an upper side frame by a water shielding membrane of the lowest stage frame in a descent positio...
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JP2006257842 |
To provide a tidal wave sluice enabling the saving of cost and time, less constrained with respect to site location, securely functioning, not providing risk to an operator, and suppressing adverse effect on river flows, lives, industria...
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JP2006257716 |
To provide a gate reduced in manufacturing cost and weight, having a prescribed strength, and eliminating maintenance and a sluice having the gate.This gate is used for the sluice installed at a harbor entrance and an estuary, and formed...
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JP3857777 |
To provide a concrete form made of fiber-reinforced concrete and capable of being finished similarly to a natural rock by forming irregularities of a rock pattern on the outer surface kept in no contact with concrete. Irregularities 2 of...
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JP3856932 |
To contrive not to mar landscape by not exposing machine over a pier. This opening-closing device is arranged across a water channel in a manner to elevate/lower along a gate groove 5 formed in a pier 4. In this case, a torque shaft 11 d...
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JP2006249701 |
To improve measuring accuracy of a level gauge, by easily and inexpensively performing maintenance work of a water introducing port, without making a worker descend up to the water introducing port.A rail member 6 is laid up to the vicin...
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JP2006249863 |
To provide a drainage system capable of being constructed for a gate irrespective of type by simple construction work.This drainage system 1 is provided with the gate 2 for opening and closing a channel, a flap valve 3 provided to let wa...
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JP3854600 |
To provide intake facilities which selectively take in water from an epilimnion, or any of arbitrary layers depending on fluctuation in water level, are additionally constructed not only in a new dam and a new reservoir but also in an ex...
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JP2006241737 |
To provide a manual lift which can increase the elevation/lowering speed of a door body by making maximum use of operator's operating force to a maximum without relying on electric power.The manual lift 1 provided for a sluice operating ...
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JP2006241861 |
To provide a gate opening and closing operation method of a river structure and its device capable of automatically opening a gate when an actual difference between inside and outside water levels detected by a difference sensor provided...
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JP3851627 |
To provide a separation dredge device for a submarine deposit and its method capable of solving such a problem as the submarine deposit, for example, earth and sand accumulated on the bed of the sea and, at the same time, dredging the de...
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JP3849966 |
To provide a construction method for installing a gate without cutting off water supply, making it possible to install the gate in a gate chamber through simple operations while keeping water flow downstream. The method includes (1) a pr...
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JP3851756 |
To provide a control method for opening and closing, and driving a horizontal shaft pump gate capable of depressing frequency of start and stop of the pump and closing the gate according to a relatively easy decision and keeping a opened...
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JP3849973 |
To provide a method of setting gate without cutting off water capable of setting a gate in a short time by a setting method of gate without requiring the cut-off of flowing water. This method comprises a first process for forming a gate ...
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JP3851693 |
To promote work efficiency without damaging natural environment in the case a dam body is executed. A concrete conveyor is so constituted that a tower-like rising and falling shaft 1 of a plurality of masts 2 is approached to the side wa...
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JP3849915 |
To provide a gate pump capable of removing dust or the like when a cut-off gate is pulled out by connecting a screen provided to an upstream side of an underwater pump to the cut-off gate. The underwater pump (8) is supportably held on t...
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JP2006233518 |
To provide a pneumatic roof gate for rotatably moving an upper side detaining bar and a lower side detaining bar in the direction for separating from an air bag, when a steel plate door body rises up and falls down, by stopping the door ...
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JP2006233746 |
To provide a flexible membrane weir structural body capable of letting a weir rise in an emergency manner even if a flexible membrane is broken and providing the minimum function as the weir to improve reliability greatly.This flexible m...
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JP2006233424 |
To provide a construction method of an impervious structure making use of dewatered sludge capable of recycling the dewatered sludge more than before to control a solid waste treatment cost by decreasing industrial wastes without causing...
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JP2006230277 |
To provide an invasion preventing device for a rope winding chamber, capable of surely preventing invasion of birds, etc., into the rope winding chamber, without requiring maintenance.This invasion preventing device has a rope 60, a rope...
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JP3846784 |
To provide a falling down type fence capable of being stored by simple operation and occupying no storage space. A lower part of a support column 3 is stored into a support column lower part storage space 2a of a column leg 2 forming the...
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JP2006225900 |
To solve the problem of the pneumatic roof gate, in which a steel-plate door body fitted to the bottom of a channel to freely rise up and fall down is erected by inflation of a pillow-like air bag provided at its root part on the downstr...
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JP2006225930 |
To provide a horizontal pulling gate system capable of intercepting a horizontal pulling gate by remote control.In the horizontal pulling gate system constituted by having a door body formed in the shape of a box consisting of a running ...
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JP2006225991 |
To improve the safety in flood control by surely establishing technology for reducing the inhibition rate such as a rubber coated cloth-made roof gate weir when driftwood or earth and sand stay on the downstream side of the door body in ...
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JP2006226052 |
To provide a water intake device which intakes water near a water surface and is easily installed.The water intake device (1) intakes water in an intake range which ranges from a water surface to about 5 m depth in dam lake (2). The wate...
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JP2006225903 |
To provide a concrete levee which enables a dam, a weir, etc. to be constructed advantageously in terms of cost, which dispenses with such skills as to assemble a concrete form and which uses an earth-conscious material, and a constructi...
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JP3844804 |
To protect concrete by arranging a protective cover made of a synthetic water resistant sheet spaced apart from the surface of a concrete body such as a dam and having elasticity and defining an atmospheric space between the concrete bod...
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JP3844278 |
To provide a mounting structure of a sluice gate allowing improvement of working efficiency. In the mounting structure for mounting the sluice gate A provided with a door stop 3 forming a pair of left and right vertical frame parts 1 and...
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JP3845608 |
To provide a concrete block which facilitates the construction of a diagonal retaining wall, to provide an apparatus for producing the concrete block, and to provide a bank constructing method by using the concrete blocks. The concrete b...
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JP3843879 |
To provide a horizontal pulling gate which prevents a mechanism part from being corroded even in the constant presence of a door body in water, can facilitate maintenance, and can be applied as an ordinary sluice. In the door body 10 of ...
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JP3844674 |
To obtain a mounting fitting capable of more surely preventing water leakage, a mounting fitting structure comprising the mounting fitting, and a flexible-membrane derricking gate which is mounted on a structure, on which the gate is to ...
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JP3844990 |
To safely and rapidly carry out installation of a weir in piping, which has an inside diameter large enough for a person to conduct work inside and has at least one end opened, and the removal of the installed weir from inside the piping...
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JP2006219876 |
To provide a passage weir with a simple structure capable of being easily installed in the passage such as a sewage disposal device or the like and a passage partition member specially suitable for the weir and the inside of a polluted w...
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JP2006219955 |
To dispense with a large-sized compressor and an independent power source in case of service interruption by allowing a door body to rise by its own buoyancy.The derricking gate 1 normally lying underwater and rising when in use, has the...
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JP2006219819 |
To provide a flash gate for a low water level, which is equipped with a lightweight valve element capable of surely shifting from a rising cut-off attitude to a tilting attitude, and capable of surely and autonomously returning from the ...
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JP2006219829 |
To cut down a construction period and construction cost without causing damage to a concrete structure due to development of a crack behind an anchored part of an anchor cable.This method of reinforcing the concrete structure using a per...
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JP3840561 |
To provide a safety edge body operating as a stop means for a rolling type gate when any part of the edge body comes into contact with an obstacle or is subjected to a stress by a pushing force. This edge body is used for the safety of t...
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JP2006214092 |
To provide a method and equipment for transporting sediment accumulated on the bottom of the water, which enable the sediment, accumulated on the bottom of the water, to be transported by being collected over a wide range through the use...
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JP2006214225 |
To provide a simple sluice for a field which is buried in a ridge between an irrigation/drainage channel and a rice field surface, which prevents leakage of water of the ridge on the periphery of an installed sluice, and which is fixed i...
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JP3839004 |
To provide a rubber bag body, which has a quality such as a shape, a size, physical properties or the like is stabilized and the cost of which is reduced for solving the problem that the conventional rubber bag body used for a derricking...
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JP2006207317 |
To carry out construction including angle setting work of each stage of remaining form panels, with good work efficiency in a short time without requiring much labor to shorten a construction period, and to make a structure strong after ...
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JP2006207132 |
To provide an undulate gate capable of temporarily at least standing up the gate even if a flexible membrane is torn and changing a rubber bag body without shutting off a water passage.The undulate gate is constituted of a rigid sheathin...
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