Abstract:
PROBLEM TO BE SOLVED: To provide a turbid water treatment system capable of automatic supply and automatic water level management of turbid water to a filter tank by vacuum suction.SOLUTION: A turbid water treatment system 1 for treating turbid water including suspended matter comprises: a filter tank 10 sealed for filtering the turbid water; at least one filter material 26 for performing filtering treatment by soaking in the turbid water in the filter tank 10; a transfer flow passage 28 for transferring the turbid water to the filter tank 10 from a storage source of the turbid water; and a vacuum suction device 18 connected to the filter material 26. The turbid water treatment system 1 transfers the turbid water to the filter tank 10 from the storage source via the transfer flow passage 28, and sticks the suspended matter to a surface of the filter material 26, by forming negative pressure in the filter tank 10 via the filter material 26 by vacuum-sucking by the vacuum suction device 18.
Abstract:
PROBLEM TO BE SOLVED: To provide a technology for estimating a geological distribution.SOLUTION: A geological estimation system includes: resistance acquisition means for acquiring resistance when placing a long burial object to be buried underground to the ground; conversion means for converting the resistance acquired in the resistance acquisition means to penetration force in a cone penetration test; bed distribution generation means for processing the penetration force converted in the conversion means and generating the bed distribution of an area where the burial object is buried; and output means for outputting the bed distribution generated in the bed distribution generation means. The conversion means includes: distal end resistance force calculation means for processing the resistance acquired in the resistance acquisition means and calculating distal end resistance force acting on the distal end part of the burial object in a placing direction; peripheral surface friction resistance force calculation means for processing the resistance acquired in the resistance acquisition means and calculating peripheral surface friction resistance force acting on the peripheral surface of the burial object; and penetration force calculation means for processing the distal end resistance force and the peripheral surface friction resistance force and calculating the penetration force of the burial object when placing the burial object.
Abstract:
PROBLEM TO BE SOLVED: To provide a joining method of a capping sheet capable of preventing infiltration of rainwater from a joining part during a long time stay of rainwater even when a nonwoven fabric is used.SOLUTION: When end edges of a pair of capping sheets 4 each formed by layering nonwoven fabric layers 6 on a moisture permeation waterproof film 5 are superimposed on and joined to each other, the gap of the nonwoven fabric layers is buried by a method of the following (a) or (b) and then the end edges are joined. (a) A part 7 to be the joining part of the capping sheets is compressed. (b) An adhesive layer constituted of a substance having fluidity is interposed between the end edges of the superimposed capping sheets and the substance having fluidity is incorporated into the inner parts of the nonwoven fabric layers.