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JP3854799 |
To provide a work caisson and its installation method that can form the same dry working space as land in a narrow range without using a pile driving boat or the like, while easily removing the working place and coping with any environme...
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JP2006241935 |
To provide a soil improvement device by which lap work of a joint part with an existing improvement body can be carried out easily, surely and in a short time.The soil improvement device 10 comprises an endless chain 40 having a pluralit...
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JP2006226061 |
To form a hardly permeable layer efficiently and securely at a bottom between water cut-off walls in an underground drainage construction method.In executing the water cut-off wall 2 a water pumping pipe 3 for pumping underground water i...
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JP3838011 |
To improve air leakage recovering efficiency. There are provided an air leakage recovering apparatus 10 consisting of first and second air leakage recovering filters 22 and 24, first and third lifting pipelines 26 and 30, and a lifting m...
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JP2006207254 |
To provide a plier steel sheet pile and a method of driving a steel sheet pile using the plier steel sheet pile allowing the steel sheet pile to be easily and smoothly driven into a predetermined depth with simple equipment.One end parts...
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JP2006204981 |
To provide a method of constructing a water barrier structure which enables construction with a relatively small construction machine and coping well with conditions associated with a narrow construction yard and improves the water barri...
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JP2006207153 |
To provide an impervious sheet storage device capable of easily developing an impervious sheet by smoothly rotating the rolled impervious sheet and an installation method for the impervious sheet using the impervious sheet storage device...
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JP2006207314 |
To provide a dry type working caisson and its installation method that can form the same dry working space as land around an underwater structure even in a place with a small under-girder space.The dry type working caisson 1 is formed by...
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JP2006194031 |
To shorten a work term for the construction of bridge pier foundation in a river or the like by rationalizing the construction process so that the construction of pier pillars can be completed within a drought period of the year.An enclo...
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JP2006169900 |
To provide an underground water draining device, a connecting pipe and a method for draining underground water, enabling to reduce cost and to improve strength of an outer pipe.The device is provided with a perforated pipe 11 having wate...
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JP3811842 |
To provide a pumping well which can be installed in an underground construction site without hindrance and obviates labor and cost for removal or cutting-down, or the like of the well and further, which prevents deterioration of the wate...
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JP2006144382 |
To prevent a water suction effect from being impaired even if the underground water level falls regarding an underground water suction device and an underground water suction method.A strainer pipe 2 having inflow holes 2a of underground...
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JP3794682 |
To largely shorten a construction period of multistage timbering, to reduce a cost, and to obtain accuracy, a speed, and safety of work for installing the timbering in a sheet pile well foundation construction method. This method constru...
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JP3788245 |
To provide a cofferdam method capable of shortening a construction period and reducing a construction cost in a state hardly bringing 4 water pollution. A supporting device 24 is set in the neighborhood of a connecting section between th...
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JP2006077567 |
To provide a recharge method which eliminates the need for a filter assembly like a filter or a screen in a recharge well where clogging is not avoidable, and by which the ground water is surely returned without draining even when the am...
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JP3782855 |
To stop water easily and positively making use of water pressure applied to a water stop wall by installing a water stop seal at the bottom peripheral part of the water stop wall of truncated cone shape or truncated pyramid shape dividab...
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JP2006070696 |
To install a diaphragm wall in the ground containing an obstacle, with it remained in the ground.Side diaphragm wall prepared holes 51 and 52 deeper than a position of the obstacle, are formed on both sides of the obstacle 1. An diaphrag...
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JP2006070564 |
To restrain noise of a vacuum deep well system pumping device; and to realize a small scale of the device.The vacuum deep well system pumping device has a casing pipe 10 embedded in a well W of the ground E, a separator tank 15 arranged ...
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JP2006057294 |
To provide a drainage method of a small well using together with a large depth vacuum drainage-a consolidation groundwater discharge method.In the drainage method of the small well using together with the large depth vacuum drainage - a ...
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JP2006057447 |
To construct quality uniform ditch walls in a way that a ditch is excavated, and excavated earth and a solidifying liquid agent are mixed together within the ditch and used for constructing the ditch walls.Digging wheels 12, 12' are oper...
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JP2006057446 |
To provide a device and method which can form an especially high-quality trench wall.The device for forming the trench wall in the soil is provided with a frame, at least one lower cutting/mixed wheel, and at least one additional upper c...
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JP3756889 |
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 th...
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JP2005350904 |
To provide an economical cofferdam structure and a cofferdam construction method.The cofferdam structure 18 is provided with a plurality of precast panels 20 of plate shape separably connected through cut-off members 21 interposed betwee...
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JP2005350979 |
To provide an economical cofferdam structure and cofferdam method.This cofferdam structure 18 is provided with a plurality of separably connected precast panels 20 and installed to surround an underwater structure such as a bridge founda...
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JP2005344460 |
To provide a tunnel prelining method which enables construction, to be performed even in the natural ground including the spring ground, and also serves as measures against spring water.In the tunnel prelining method for excavating a tun...
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JP2005344397 |
To provide an underground water control method for basement construction for not lowering a underground water level in the vicinity of an excavated site while treating the surplus soil of the excavated ground as dry surplus soil in const...
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JP2005336807 |
To provide an underwater bottom plate constrution method of a bottomless structure, easy in construction without substantially requiring repair while surely constructing a bottom plate, by draining water, remarkably shortening the number...
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JP2005330763 |
To recover water injection capacity while continuing water injection from a condensate well and to increase the total amount of water injection compared with a conventional method.In this water injection method in a water recharge method...
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JP2005307700 |
To enhance the bending rigidity of a bottom board, prevent a bending crack from being caused and prevent the bottom board from being separated from a frame body.A steel panel 6 is submerged in a body of water 2 (102), and underwater conc...
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JP2005299188 |
To provide an enlarged-diameter caisson foundation structure which is excellent in construction of a caisson foundation, and economical.In construction of the caisson foundation, a caisson main body 11 having a circular cross section is ...
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JP2005299123 |
To provide a recharge method and a recharge structure used for the recharge method reducing a possibility of causing clogging in the ground above the free water level where fine grains cannot be eliminated by pumping.In the recharge meth...
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JP2005299222 |
To provide a cofferdam case body capable of applying a predetermined contact bearing pressure to cut-off packing by a simple method, and its installation method.In this cofferdam case body 1, a pressure receiving bodies 7 for receiving v...
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JP2005282174 |
To provide a steel pipe sheet pile joint and a joint structure of a steel pipe sheet pile which ensure the positioning accuracy of the steel pipe sheet pile, which have proper workability associated with excavation and washing of sedimen...
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JP2005282130 |
To reduce an embedded depth of an earth retaining wall, by preventing settlement and drying-up of a well of the surrounding ground by excessive pumping of underground water.In this ground excavation method, first of all, an air injection...
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JP2005282199 |
To provide a bottom plate water cut-off method in an open caisson construction method, capable of surely preventing water leakage of a bottom part of a caisson skeleton in a short time.The caisson skeleton 1 is provided with a pipe 3 for...
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JP2005264500 |
To provide an environmentally harmless and economical cofferdam structure and a cofferdam closure method not attended with mass dredging.In the cofferdam structure for surveying, repairing or reinforcing an underwater existing structure,...
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JP2005248631 |
To provide a technology for a packer enabling its withdrawal from the ground together with a liquid conveying pipe, easy handling upon its expansion and a reliable sealing effect.The packer is provided with a bag body 2 which is expansib...
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JP2005248632 |
To provide a liquid injection method, a recharge method and a chemical grouting method by which the liquid like the ground water or the chemical is properly injected along a longitudinal direction of a pipe laid in the ground.Multi-layer...
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JP2005232721 |
To provide a strainer device for use in a deep vacuum draining-compaction draining method for lowering a groundwater level.The strainer device is formed of a long casing pipe (1) and a sheath pipe (2) sheathing the same. The casing pipe ...
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JP3713654 |
To provide a cut-off wall partition device with a valve for arranging the cut-off wall partition device with the valve on a cut-off wall, forming a pumping well to perform the underground water treatment of an excavation ground during ex...
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JP2005232737 |
To provide a method for determining the depth of an impervious wall to be constructed in the excavation of ground, in accordance with the actual measurement of the coefficients of the horizontal and vertical permeability of the in-situ g...
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JP2005226326 |
To provide a reinforcing structure for the existing pier foundation and a reinforcing method for the existing pier foundation capable of simply carrying out reinforcing work for the existing pier foundation.After a plurality of steel pip...
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JP2005220592 |
To provide a technique of constructing an underground structure in the soft ground for use as a free water underground storage facility, and constructing a building on the underground storage facility as a foundation structure.There is p...
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JP2005213803 |
To provide an installation method for a temporary coffering structure and a temporary coffering caisson body whose manufacturing cost is low and installation and removal are easy.The temporary coffering structure 1 includes a temporary c...
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JP2005213804 |
To provide a construction method for a countermeasure against the spread of contamination upon construction work like the excavation of the ground by which secondary contamination caused by ground water existing in a contaminated aquifer...
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JP3706368 |
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 i...
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JP3704613 |
To shorten the term of works, and to reduce cost by a method wherein an impervious shell, in which upper and lower sections are opened, is bottomed on the bottom of water and a peripheral water area is coffered, the bottom of water in th...
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JP3687575 |
To provide an underground continuous wall execution work support system for performing optimal excavation work by providing information required in accordance with a ground state. A control server 26 is connected to an excavator 10 of re...
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JP2005139865 |
To install a bottom block having a large weight without using a large-sized heavy machinery.The underwater temporary cofferdam installation is provided at least with a caisson 22 installed on a concrete face 2a of a water reservoir side ...
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JP2005139763 |
To provide an anticlogging device for a pumping well of a pumping system used for earth retaining excavation works.The pumping system constructs an earth retaining wall 10 in the ground and is used in an earth retaining excavation work e...
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