Abstract:
PROBLEM TO BE SOLVED: To provide a pressing type simplified freezer capable of stopping spring water in a short time by rapidly coping with the spring water welling out abruptly. SOLUTION: This pressing type simplified freezer used by being pressed to a spring water part A of the natural ground comprises an abutting part 2 abutting on the spring water part A of the natural ground, and a cooling part 3 for cooling the abutting part 2. A cut-off frame 4 is formed in a circumferentially continuous manner around the abutting part 2. A cooling pipe 8 for circulating brine is built in the cooling part 3. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: 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 of groundwater and high concentration contaminated groundwater around the soil. SOLUTION: The method includes a purification body installation process for installing an underground freezing pipe and a first underground suction body at an appropriate pitch in the contaminated ground in which the contaminants exist in the soil located to be equal to or below the level of the ground water, a freezing process for freezing a contaminated ground region, and a liquid suction process for sucking the liquid state contaminants from the first underground suction body while a frozen state is maintained. COPYRIGHT: (C)2005,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a work execution method and a work execution structure, performing the shaft arrival work of a shield machine safely, smoothly, in a short period of time and at a low cost, increasing a cutting reaction force, and preventing the adhesion of a foreign matter to a water stop packing. SOLUTION: By this work execution of method, the shield machine 1 simultaneously cuts and excavates a shield machine arrival wall 3 built in a part of a shaft wall 11 and a filler J in closed entrance 27 provided on the back thereof. In a state that the shield machine 1 enters the closed entrance 27 to cut the filler J, the filler J is put in a frozen state. A water glass suspension chemical is used as the filler J. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an inspection unit capable of coping with inspection at high frequency and high current after being conducted to direct wiring from a plunger, and capable of facilitating replacement of a probe.SOLUTION: A ball-shaped terminal 11c which is molded integrally with a line body 11b of wiring 11 by laser thermal spraying or the like is energized by an elastic member 41 and housed in a wiring support board 23 so as to be freely movable by a predetermined distance. A plunger 25 which penetrates through a pin board 22 and is energized by a spring 26 is supported so as to be freely movable by the predetermined distance. The ball-shaped terminal 11c energized by the elastic member 41 comes into contact with the rear end of the plunger 25.
Abstract:
PROBLEM TO BE SOLVED: To provide an inexpensive dilution device with simple structure and high durability, capable of preparing for each disinfection operation a chlorine dioxide diluted solution which is unstable and naturally quickly degradable.SOLUTION: A PVC-made cylindrical sealed dilution tank includes a chlorine dioxide stock solution suction port and a water supply port which are provided at the bottom, and a water suction port and a diluted solution outlet which are provided at an upper portion of the tank. A tube connected to the diluted solution outlet at the upper portion of the dilution tank is connected to an instrument disinfection tank through a PVC-made check valve 2. A pump 3 is operated simultaneously with the opening of a highly acid-resistant solenoid valve 5 to suck and carry a designated amount of water from the dilution tank to the outlet of the PVC-made check valve, and by the negative pressure resulted therefrom, a designated amount of the liquid in the chlorine dioxide stock solution tank 6 is sucked into the dilution tank. When the operation of the highly acid-resistant solenoid valve and the pump is stopped, a water supply solenoid valve 7 is opened to inject a designated amount of water to the dilution tank, and the chlorine dioxide stock solution is supplied via the PVC-made check valve to the instrument disinfection tank while diluting.