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JP3681314 |
To provide a small-scale continuous wall construction method and a water seal device used therefor capable of fully placing concrete even to the joint portions of the continuous wall, eliminating concrete portions defectively placed and ...
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JP3673977 |
To enhance economical efficiency by constructing a land slide protection wall by contacting a pile and a pile with other in a water stop unnecessary depth directional section, and constructing the land slide protection wall by partially ...
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JP2005090015 |
To provide a ground excavating method which contributes to improved excavation efficiency while avoiding the subsidence of the peripheral ground.An earth retaining wall 10 is constructed at the time of the excavation of the ground. Befor...
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JP2005061066 |
To provide a rubber gasket of excellent cut-off performance and the joint structure of submerged caissons using the rubber gasket.The rubber gasket 10 formed by connecting a base part 12 and a cut-off part 20 of approximately plate shape...
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JP2005048404 |
To provide a cutoff structure for a radioactive waste disposal site, which easily and positively cuts off a water channel formed in a work area such as a gallery and an excavation influencing area, formed due to construction of the radio...
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JP2005048518 |
To improve the reliability of a revetment by conducting a treatment, in which an impervious material is stuck fast on the walls of structures, among the structures installed on a partition revetment when a waste dumping place is partitio...
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JP2005042480 |
To provide a temporary cutoff structure for resisting a shearing force by a simple constitution.This temporary cutoff structure has a temporary cutoff work for surrounding the outer periphery of an underwater structure such as a bridge f...
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JP3643956 |
To provide a construction method of an artificial low water permeable layer adopted as a kind of underground water level lowering construction method at underground work of the large depth in the sand ground or the gravel ground having a...
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JP3645862 |
To provide pumping equipment and an underground water level lowering device, which can be applied to existing equipment without a modification to it, and offer efficiency and high convenience. The pumping equipment is equipped with a vac...
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JP2005023614 |
To provide an epoch-making technology of a freezing pipe used for freezing treatment, extremely superior in practical use, for realizing smooth excavating work, by uniformly and efficiently freezing soil of a freezing requiring place, th...
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JP2005002659 |
To enhance safety and efficiency of excavation work in an excavation area, and to efficiently prevent an adverse affect, such as ground subsidence, caused by lowering of a water level in peripheral ground, by restoring pumped groundwater...
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JP3631377 |
To provide a method capable of executing construction and repair of levee, etc., in a place where a large water current clashes within a short period of time. A hanging contraction rope is inserted in the mesh of a net around the circumf...
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JP2004346646 |
To provide a technology for surely and rapidly preventing piping.In a construction method for preventing the piping, a periphery of a hole 1, wherein boiling regarded as a sign of the piping occurs, is surrounded on an excavated surface ...
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JP2004330097 |
To provide a method for freezing and removing polluted soil, for making block-shaped frozen soil by utilizing a freezing technique and sealing the volatilization of a harmful substance or the malodor of waste with ice to more reduce an e...
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JP2004330096 |
To provide a method for excavating and removing polluted soil, for suppressing the volatilization of a harmful substance to the atmosphere or the malodor of waste at the time of excavation or transport to further reduce an environmental ...
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JP2004316075 |
To provide a ground water lowering device capable of surely preventing the ground subsidence around the excavated areas or the damage of a building and lowering only the ground water in the excavated ground without lowering the ground wa...
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JP2004316133 |
To reduce costs and shorten a construction period by eliminating a limit to a difference between the size of a footing and that of a bridge pier.A temporary cofferdam 12 is composed of a cofferdam wall body 18 which is assembled in such ...
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JP2004298673 |
To provide a purification method for the contaminated ground which curtails a treatment time and reduce a treatment cost by efficiently sucking/removing liquid state contaminants existing in soil located to be equal to or below the level...
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JP2004293202 |
To provide an undergroundwater passage type pneumatic caisson, which does not obstruct the passage of undergroundwater more than required.In the pneumatic caisson 11 with an approximately cylindrical caisson skeleton 12, a work-room slab...
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JP2004285913 |
To utilize a large-sized submerged pump excellent in drainage performance by moving it in a construction site full of rocks on the ground.A submerged pump body is placed on or inside a base with a prescribed height, and an opening is pro...
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JP2004272173 |
To provide a system for efficiently supporting an underground dam project or the like which is a legitimate ground water development system by integrating geographic information system technology and underground dam technology, and integ...
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JP3599431 |
To provide the safe economical execution method of a temporary cofferdam by installing and executing the temporary cofferdam in a short period at any time regardless of the water level of a dam, etc. Pedestal concrete 2 is placed on the ...
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JP2004257131 |
To efficiently construct a water stopping structural body capable of sufficiently ensuring cut-off efficiency and strength as well as the excellence in flexibility and auto-repairability.High expansive slurry mixing bentonite with ethano...
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JP3583020 |
To provide an underground intercepting-plate construction method in which high impervious performance is maintained stably even when there is the defective filling of a sealing material or even when external force such as vibrations is a...
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JP2004218249 |
To prevent the generation of an air zone in a ground by supplying the inside of a ground with only water by effectively discharging air to the outside even when air is mixed with pumped-up water.A series of pumping-up returning path 4 in...
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JP3580647 |
To reduce the flow of groundwater current under a disposal area by shutting off with an impervious wall and providing a water permeable layer inside or outside this impervious wall. An impervious structure 20, which surrounds a stratum 1...
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JP2004197360 |
To secure stability by rapidly dealing with predictions about the occurrence of an abnormal external force.A cofferdam structure 10 is constructed when the repair, reinforcement and new installation of an underwater structure are perform...
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JP2004197403 |
To increase the whole strength as a steel pipe sheet pile compared with a conventional steel pipe sheet pile, which results in exhibiting the cut-off effect of a closed space, reducing water quality pollution caused by cut-off works and ...
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JP3565476 |
To provide a purifying method and device for contaminated underground water and/or contaminated stratum high in purifying efficiency. In this purifying method, injection water is prepared by pumping up underground water from an undergrou...
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JP2004132177 |
To provide a pumping and draining device capable of reducing the cost for work, properly draining the groundwater of a first aquifer 5 to a second aquifer 6, and properly removing a filtered matter accumulated on a draining layer screen ...
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JP2004124631 |
To correspond even to rocking in a narrow space at a limited construction site and on board for expanding the utilization of steel slag, and to efficiently conduct neutralizing treatment.Steel slag as an infilling is charged to a caisson...
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JP2004116220 |
To reduce a cost by reusing a material without generating industrial waste when lowering an underground water level with a ground water level lowering device.The ground water level lowering device 1 exposing an upper end 3a on ground, en...
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JP2004108142 |
To prevent the circulation of water inside and outside a partition in a partitioned revetment at a waste landfill by performing an improvement in impermeable treatment to an accumulation layer at a lower part of a caisson and to a base o...
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JP2004092095 |
To provide a method for lowering a groundwater level that can possibly reduce time and costs for work by lowering groundwater at a lower cost and in an easier manner than a conventional groundwater lowering method.A groundwater pumping d...
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JP2004068485 |
To extremely effectively remove groundwater in a surface layer of the ground at a construction site, during the implementation of a deep well construction method.A casing pipe 5 having water holes 6 is erected in a shaft 3 excavated in t...
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JP2004052277 |
To provide a construction method for a double closing levee capable of greatly contracting a construction term and costs necessary for the construction of a double closing levee and lessening influence giving to the environment.A substan...
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JP2003328344 |
To efficiently perform water collection through wellpoints, and pumping action by easily constructing a pumping apparatus in using a high lift wellpoint construction method.A casing pipe 10 of prescribed length is disposed inside a hole ...
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JP2003286724 |
To provide a differential pumping earth retaining wall for pumping a necessary amount of ground water at a necessary depth for a necessary period by eliminating the necessity of many keep wells in a site, and to provide a differential pu...
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JP3478480 |
To objectively verify whether impervious sheets are normally engaged with each other and provide a work execution control method simple in verification principle and measuring structure. In this method, impervious sheets 1A and 1B have a...
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JP2003278165 |
To reduce the construction cost by surely performing drainage in a construction job site of an underground structure.A drainage box 1 is formed by a drum part 2 for installing an underwater pump 5 and a cylindrical part 3 provided on the...
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JP2003253685 |
To easily operate small-scale temporary coffering in a narrow space below a girder during aseismatic reinforcement work and the like for a bridge girder lower part when a column type structural body is immersed in the water.In this simpl...
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JP2003239296 |
To provide pumping equipment and an underground water level lowering device, which can be applied to existing equipment without a modification to it, and offer efficiency and high convenience.The pumping equipment is equipped with a vacu...
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JP2003232044 |
To increase a construction efficiency.In this cofferdam closure method, the outer periphery of a bridge pier 1 is surrounded by a cylindrical cofferdam closure wall 14, the inside water is drained, and a reinforcing work is done. After c...
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JP3455081 |
To provide an underwater temporary cofferdam installation that can omit unevenness adjustment work. An underwater temporary cofferdam installation is provided vided with a caisson installed on a reservoir side concrete face 2a of a dam b...
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JP2003206539 |
To provide an economical temporary closing construction method having a short construction period for driving a steel sheet pile in hard ground.This temporary closing construction method to be temporarily arranged in an outer peripheral ...
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JP2003201709 |
To provide a sandbag, which has fast water swelling velocity, in which contents in the case of a swelling are not leaked and the operation of which can be prepared rapidly.The sandbag 1 is composed of an outer bag 2 having water conveyan...
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JP3452217 |
PURPOSE: To make it possible to regain water permeability after the completion of the construction of an underground structure by forming the lower ends of an earth retaining wall up to the depth for balancing between active earth pressu...
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JP3451050 |
To perform definite drainage on the job site for an underground structure and also to reduce construction cost. A drain box 1 capable of definitely carry out drainage of underground water to a shallow swamp 15 and preventing water leakag...
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JP2003193543 |
To provide a construction method for draining ground and its member capable of preventing a drop of water from being penetrated into the ground even when only the ground surface which is formed out of crushed stone and surface soil is we...
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JP3445786 |
To smoothly and efficiently return water in the ground without clogging the ground by an oxide granular material of dissolved iron in returning the pumped-up water. This method pumps up underground water flowing inside a pumping casing p...
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