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Matches 251 - 300 out of 1,828

Document Document Title
JP2014234681A
To prevent a pressure-reduced state in a well pipe from being made maintainable due to air flowing into the well pipe when lowering a ground-water level by using a vacuum deep well.An inventive ground-water level lowering system 1 evalua...  
JP2014227660A
To seal sump water of groundwater by digging a hole around a building by a boring and inserting a refrigerant pipe into the borehole to freeze ground like a vessel, and to prevent the leakage and diffusion of internal contaminated water....  
JP2014218847A
To provide a temporary cofferdam wall capable of preventing sandbags from flowing out through easy construction.There is provided a temporary cofferdam wall 10 for temporary cofferdam that comprises a sandbag stack 11 formed by arranging...  
JP2014190072A
To facilitate tightening of a caisson to the side of a dam body in the water and suppress variations of tension acting on clamping hardware after the tightening as much as possible.Clamping hardware for underwater cofferdam has: a caisso...  
JP5598246B2  
JP2014161835A
To provide a structure of a sump capable of efficiently precipitating earth and sand in slurry, resulting in no damage to a submerged pump.A structure of a sump comprises: an outer cylinder arranged outside; and a spiral water channel ar...  
JP2014157090A
To accurately evaluateC deriving from a natural organic substance to measure the age of groundwater.Groundwater 3 is passed through an adsorption column 12 filled with hydrophobic synthetic adsorption resin 11 to make uranine contained i...  
JP5579530B2  
JP5572540B2  
JP2014134057A
To provide a cofferdam structure for performing a work in an aerial space that is to be done in a part below the water level of a structure having underwater part, and a cofferdam method for the structure.A cofferdam structure 10 for per...  
JP5548282B1
[Subject] A deadline structure for a part to do the work by a part for the lower part of the water surface of the structure which exists under the water surface between mind hollow, and the deadline method of a structure are provided. [M...  
JP5541533B2  
JP2014101661A
To provide a groundwater level raising system or the like, capable of efficiently recovering a groundwater level.A groundwater level raising system 1 is provided on a groundwater downstream side of a soil-stopping wall 101a on a groundwa...  
JP5510692B1
[Subject] Temporary tightening OFF is installed in the environment of the low-altitude head, reducing a construction period and cost. [Means for Solution] Portable crane 台船 10 for low altitudes contains 台船 part 12 and crane 14, a...  
JP5508917B2  
JP2014088714A
To provide a temporary supporting method for a foundation, enabling base isolation of an existing building at low cost while reducing stress induced in the foundation of the existing building.In a temporary supporting method for a founda...  
JP2014088721A
To simplify a cofferdam work and improve the efficiency of the cofferdam work in a retaining wall repair work of an irrigation channel.A bottom dam plate part 3 is projected downward over the whole length of a bottom of a slender hull 1 ...  
JP2014084647A
To provide a drainage system and a drainage method, which can prevent a large amount of groundwater from flowing out to a ground surface during earthquakes.A drainage system includes: a plurality of hollow cylindrical drainage materials ...  
JP2014047533A
To provide a box body for cofferdam, which can be efficiently installed in and removed from an underwater structure such as a bearing pile and a bridge pier, and a cofferdam construction method using the same.A box body 1 for cofferdam i...  
JP2014015809A
To provide cut-off of water for a joint part of a steel sheet pile, with which work can be performed easily by using low-priced materials and a water cut-off performance of a cutoff wall can be improved easily.According to the cut-off of...  
JP5389746B2  
JP5390044B1
[Subject] What is necessary is just not to need large-sized equipment of a work barge provided with a crane etc., and to eliminate necessary minimum deposition earth and sand, and it provides an underwater retaining wall construction met...  
JP5385720B2  
JP2013245527A
To provide a drain ditch structure constructed on a slab and capable of easily and surely preventing finish mortar of a bottom part of the drain ditch structure from rising, and a concrete form fixing member.A drain ditch structure A is ...  
JP2013238067A
To provide a shallow sump in which blades of a submersible pump 4 are unlikely to be damaged, by precipitating sediment in slurry.A shallow sump comprises an outer cylinder 1 in the outside, a center cylinder 2 installed in the center, a...  
JP5338064B2
To provide a method for preventing the oxidization of groundwater in a well in the nonuse of the well, and the well for use in the method. The well 1 comprises: a column pipe 13 for collecting the groundwater inward; an injection section...  
JP5320728B2
To provide a service well which is usable during and after works such as the construction of an underground structure and not damaged even if a horizontal load due to an earthquake acts thereon and also provide a method of constructing t...  
JP5264978B2
To provide a water cutoff wall body for cutoff, capable of facilitating, simplifying and shortening a diving operation and shortening a construction period. The water cutoff wall body for cutoff includes: a floor base 11 of a water cutof...  
JP5231344B2  
JP5218004B2  
JP5212070B2  
JP2013108316A
To provide a water cutoff wall body for cutoff, capable of facilitating, simplifying and shortening a diving operation and shortening a construction period.The water cutoff wall body for cutoff includes: a floor base 11 of a water cutoff...  
JP5204626B2  
JP2013091969A
To provide an inexpensive cofferdam structure with proper workability by reducing a dead space of an inner space.A cofferdam structure 100 for use in construction of a through-hole in an existing dam body 1 includes a cylindrical body 20...  
JP2013091923A
To enable a reduction in underwater work, and to enable a fixation state to a support member to be easily and visually recognized from the outside.A cofferdam structure includes: a lower support frame 2 which is fixedly provided on a wal...  
JP5178635B2  
JP5173783B2  
JP5158652B2  
JP5132506B2  
JP5132435B2  
JP2013011123A
To provide an apparatus for temporarily coffering the periphery of a columnar object which can be reused by moving one partition with bottom plate for work space formation even for construction to columnar objects such as bridge piers ha...  
JP2013011089A
To provide a lifting device that can lift deep groundwater with a small bore.A groundwater lifting device is provided with a triple pipe consisting of an outer pipe 1, an inner pipe 2, and a water lifting pipe 3. The outer pipe 1 has an ...  
JP5099709B2  
JP2012233349A
To provide an earth retaining method for lowering working costs by greatly reducing working processes.In the earth retaining method for construction work to excavate ground deeper than a lower end 11a of an existing underground outer per...  
JP5057223B2  
JP2012197603A
To provide an estimating method for accurately estimating the existence of a risk of the occurrence of water leakage and a position thereof by confirming the soundness of an earth retaining wall before starting excavation, and to provide...  
JP5053339B2  
JP5042786B2  
JP5034581B2  
JP5022947B2  

Matches 251 - 300 out of 1,828