Login| Sign Up| Help| Contact|

Patent Searching and Data


Matches 601 - 650 out of 1,834

Document Document Title
JP3338910B2
PURPOSE: To greatly increase a bending resistance force of the freezed ground so as to the thickness of the freezed ground (freezed area) and to restrain the ground from being expanded by freezing. CONSTITUTION: Freezing pipes 4, 14 and ...  
JP3338909B2
PURPOSE: To provide a simple stratified pumping well capable of separately pumping water from a plurality of aquifers. CONSTITUTION: A drilled hole 31 is formed, so as to penetrate an impermeable layer 1 and reach an aquifer 3 existing u...  
JP3337293B2  
JP3324012B2
PURPOSE: To enable the construction of a permeability-retardant layer quickly and economically. CONSTITUTION: A sheathing wall 1 is constructed in the depth where it reaches a permeable layer 4, an injection pipe 2 having a length arrivi...  
JP2002256538A
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 pi...  
JP2002256546A
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 res...  
JP3318401B2
PURPOSE: To surely prevent the outflow of a seepage liquid to the outside sea from the reclaimed ground side at a reclamation disposal site or after the completion of reclamation, simplify the facility structure, and facilitate the opera...  
JP2002235328A
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 the...  
JP2002227186A
To provide a sealing structure applicable to other general joint seals than a joint for a steel pipe sheet pile while solving the problems that a waste permeated water flows out of the joint for the steel pipe sheet pile, and its executi...  
JP2002201649A
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...  
JP3295446B2
PURPOSE: To provide a method for welding and laying a water barrier sheet by efficiently producing the water barrier sheet having a large area on a float by welding to lay the same and to provide a device therefor. CONSTITUTION: A roll-s...  
JP3286862B2
PURPOSE: To provide a water stop sheet having excellent weather resistance, chemical resistance, heat resistance, cold resistance, breaking load, sealing property, softness, durability, and workability at the time of execution. CONSTITUT...  
JP2002138461A
To provide a structure of a diaphragm wall having a function lowering or raising the ground water level, a lowering method of the ground water level making use thereof and a restoration method of the ground water level.The structure of t...  
JP2002121743A
To provide a ground water lowering method capable of directly discharging ground water from the inside of the ground to artesian aquifer without pumping up on the ground, and a ground water lowering device therefor.This ground water lowe...  
JP2002097614A
To provide a sandbag, swelling when contacting with water to serve water shielding function, decreasing in weight and thickness, giving no damage to environment after usage, and facilitating waste disposal.The sandbag 1 comprises a water...  
JP2002088770A
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 me...  
JP2002061279A
To provide a method for executing cut-off work of water, which eliminates cut-off operation conducted by divers, and exerts high cut-off performance.The cut-off shelter is comprised of a shelter main body 5 having an opening surface faci...  
JP2002038466A
To provide a connection method of an impervious sheet having a highly impervious property and which can be easily connected and its joint member.The joint part 12 located at the side end of the impervious sheet 2 at the time when it is i...  
JP2002030636A
To provide a reclamation method capable of suppressing ground subsidence after reclamation of the sea and lakes which are soft grounds.In this reclamation method in which water is drained from a closed water area formed by using partitio...  
JP2002030669A
To provide a temporary coffering work method and a frame body for temporary coffer capable of performing a temporary coffering with a simple and inexpensive method without using a driving machine so far mandatory in a temporary coffering...  
JP3250472B2
To assemble and disassemble a cofferdam construction simply and quickly. This structure 18 is divided along the vertical direction, actually constituted of two box body blocks 20 of the same construction as main structural members, and t...  
JP3250471B2
To assemble and disassemble a cofferdam construction simply and quickly. Box body blocks 20 are arranged so as to be opposite to each other with a bridge pier 12 as the center, fasteningly assembled sandwiching a box body connecting pack...  
JP3248146B2
PURPOSE: To insert a water impermeable sheet in a linear groove surely with an extent of surface to a designated depth, to decrease the number of joint parts so as to improve the work efficiency of joint construction and improve water im...  
JP3240394B2
PURPOSE: To increase imperviousness and facilitate the connection work of impervious sheets by making the impervious sheets in double construction and connecting them in a large shaft in which grooves are connected. CONSTITUTION: Multipl...  
JP2001323476A
To provide a cofferdam construction method capable of easily constructing, whithout using any special apparatus, structural body for forming a working environment in dry condition around piers.The cofferdam construction method comprises ...  
JP2001323477A
To correct the nonconformity of a pumping control system to the nature of ground water.The levels of water in pumping wells W equipped with motor-driven valves 8 positioned at a few points and water in observation wells located at a few ...  
JP2001311158A
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...  
JP2001303580A
To provide a temporary shuttering method and structure using a caisson, capable of easily forming a wide working space portion outside a column part, and permitting repair work, etc., for the column part to be carried out well. In the te...  
JP2001259561A
To upgrade the water barrier performance and reliability of the water barrier wall by a water stop sheet.In the water barrier wall 1 with a water stop sheet 3 installed in a groove 2 formed underground, a double sheet is used as the wate...  
JP3200781B2
PURPOSE: To reduce the expense by a method wherein when a landslide protection wall is built, pumped up underground water is reduced to an underground not through a sewerage and a bored hole but through a permeation layer. CONSTITUTION: ...  
JP2001214452A
To provide ground-water level lowering method without any restrictions on installing places with which water level lowering can be performed enough even in places where vertical wells are hard to install.Lowering the ground-water level i...  
JP2001214451A
To provide a ground-water level lowering method with which ground- water level can be lowered efficiently with few collecting and draining facilities when excavation of a deeper area than the ground water level is required, or the area t...  
JP2001214453A
To provide a method of enclosing underground contaminants by cutoff walls.Movements of ground water where a contaminant 1 is eluted are slowed by installing cutoff walls 3 which surround the contaminant 1 under the ground and do not reac...  
JP3195954B2
PURPOSE: To bore a hole and install a drainage pipe in the hole without flowing out sand by only treating water and prevent sand after the installation by using the drainage pipe as a screen pipe and take in only water and perfectly prev...  
JP2001207457A
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 leakage...  
JP2001207444A
To provide an impervious wall having low permeability and high earthquake resisting performance and facilitating the execution at a low construction cost.Impervious wall is constituted by combining impervious member 10, with hardening wa...  
JP2001200533A
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 ...  
JP2001200251A
To provide a grout which is especially suitable for producing a watertight screen and does not need the addition of a retardant. This grout comprises a mixture containing water, a natural or modified clay, a special blast furnace slag, a...  
JP2001164564A
To provide an impervious wall for improving an underground continuous wall partitioning the inside and outside of a site in order to prevent the leakage of polluted water from sewage disposal plant or the like.A connecting drainage route...  
JP3178319B2
To build a reliable water barrier layer economically. For example, a propulsion machine having at least two units of propulsion apparatuses connected by a grooving steel plate is advanced under the ground from a starting base A which is ...  
JP2001140235A
To provide a light impervious device capable of facilitating the conveyance/storage, easily and quickly carrying out the construction of an impervious wall and automatically increasing weight with water to become the impervious wall. A s...  
JP2001140265A
To block a water spouting spot by lowering the ground-water level when high-pressure water spouts in an underground excavation surrounded by sheet piles due to the wall surface of a sheet pile or boiling. When high-pressure water spouts ...  
JP2001140246A
To provide a permeability confirmation method of the lower ground of a cylindrical vertical type underground tank capable of easily and properly ensuring imperviousness of an objective ground in accordance with a result of a permeability...  
JP3168197B2
To provide an anchor structure of a caisson and a construction method capable of promoting the stability of the caisson as a footing of a structure or reducing a sectional area of the caisson by the promotion to construct the economicall...  
JP2001131987A
To provide a connection structure of a sheet to be buried capable of smoothly and securely inserting a newly buried sheet without being prohibited by soil or the like invading into a connection female part while holding a connected condi...  
JP3163367B2
PURPOSE: To drill a hole and install a drainage pipe in the hole in less numbers of process without flowing out of sand by treating only water and prevent sand after the installation by using the drainage pipe as a screen pipe and take i...  
JP2001115458A
To reasonably construct a deep well together with an earth retaining wall by driving a well construction pipe as a part of an earth retaining wall forming pile while constructing the earth retaining wall, and achieving the excavation of ...  
JP2001115457A
To provide a method for automatically adjusting the water level of the inside and outside of a cofferdam so as not to generate the head between the inside and the outside of the cofferdam. In a closing method in rivers and seas, a pipe b...  
JP3153407B2
PURPOSE: To enhance the efficiency of executing works of constructing a water- cut screen, ensure a high safety, suppress the costs, and perform works with high accuracy by providing possibility of continuous excavation of trench and con...  
JP2001090087A
To surely prevent co-lifting of a buried sheet without providing heavy equipment at a penetration frame, and further to improve the safety of construction and working environment. A lower end of a buried sheet 16 is engaged with a lower ...  

Matches 601 - 650 out of 1,834