公开(公告)号：JP2004358404A

公开(公告)日：2004-12-24

申请号：JP2003161672

申请日：2003-06-06

Applicant: Fudo Constr Co Ltd ,  Yuzuru Ito ,  Masafumi Kamon ,  Kinjo Rubber Co Ltd ,  Seiken Co Ltd ,  不動建設株式会社 ,  譲 伊藤 ,  雅史 嘉門 ,  株式会社精研 ,  錦城護謨株式会社

Inventor： ITO YUZURU ,  KAMON MASAFUMI ,  HIOKI KAZUAKI ,  NOMURA TADAAKI ,  FUKAISHI TAMIYUKI

IPC: B09C1/00 ,  B09C1/04

Abstract: PROBLEM TO BE SOLVED: To provide a purifying method of a polluted ground in which contaminants in a stock solution state which exist in soil shallower than a grand water level and water in the polluted gap of the periphery are efficiently sucked in and removed, and the shortening of a processing time and the reduction of a treatment cost are aimed at, and to provide a purifying body.
SOLUTION: The method is composed of a purifying body arranging process, in which a subterranean freezing pipe and a subterranean suction body are arranged in a proper pitch in the polluted ground with contaminants existing in the soil shallower than the grand water level, of a freezing process freezing the polluted ground region, and of a stock solution suction process, in which the contaminant in a liquid form is sucked in from the subterranean suction body in a state where the freezing condition is maintained.
COPYRIGHT: (C)2005,JPO&NCIPI

公开(公告)号：JP2004330096A

公开(公告)日：2004-11-25

申请号：JP2003130145

申请日：2003-05-08

Applicant: Fudo Constr Co Ltd ,  Yuzuru Ito ,  Masafumi Kamon ,  Kinjo Rubber Co Ltd ,  Seiken Co Ltd ,  不動建設株式会社 ,  譲 伊藤 ,  雅史 嘉門 ,  株式会社精研 ,  錦城護謨株式会社

Inventor： ITO YUZURU ,  KAMON MASAFUMI ,  HIOKI KAZUAKI ,  NOMURA TADAAKI ,  YOSHIDA SATOSHI

IPC: E02D19/14 ,  B09C1/00 ,  B09C1/04 ,  E02D3/115

Abstract: PROBLEM TO BE SOLVED: 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 risk.
SOLUTION: This method for excavating and removing polluted soil has a cooling pipe arranging process for arranging cooling pipes in polluted soil having a pollutant present therein at an appropriate distance interval, a cooling process for supplying a cooling medium to the cooling pipes to form partially frozen soil around the cooling pipes, a temperature leveling process for stopping the supply of the cooling medium to allow the cooling medium to stand for a predetermined time and obtaining substantially low temperature non-frozen polluted soil and a excavation process for excavating the low temperature non-frozen polluted soil.
COPYRIGHT: (C)2005,JPO&NCIPI

公开(公告)号：JP2004142066A

公开(公告)日：2004-05-20

申请号：JP2002311757

申请日：2002-10-25

Applicant: Seiken:Kk ,  株式会社精研

Inventor： HAMAGAKI RYUSUKE

IPC: B24D11/06 ,  B24D11/00

Abstract: PROBLEM TO BE SOLVED: To extremely increase a grinding capacity as compared to a conventional non-woven cloth polishing belt, to lengthen the service life, to reduce the deviation of an object to be polished sideways even though the object to be polished is pressed to one side with the object driven by a roll and to prevent the object from being exfoliated inside the belt by being driven by a small roll.
SOLUTION: In the polishing belt, the fibers 4 made of a thermoplastics having polishing grains 5 on the surface are stereoscopically collected without directional property, and the polishing belt is provided with a non-woven cloth polishing layer 3 where the fibers 4 are thermally deformed and are pressed by a pressing plate at a temperature and for a period of time required for flattening the surface of the fibers, and a base sheet 2 connected with the same superimposed on the non-woven cloth polishing layer 3. The polishing belt connects a superimposed body of the base sheet 2 and the non-woven cloth polishing layer 3 in an endless belt.
COPYRIGHT: (C)2004,JPO

公开(公告)号：JP2004027683A

公开(公告)日：2004-01-29

申请号：JP2002186990

申请日：2002-06-27

Applicant: Seiken Co Ltd ,  株式会社精研

Inventor： TERAO YOSHITO ,  KOBAYASHI HIDETO

IPC: E02D3/115

Abstract: PROBLEM TO BE SOLVED: To solve a problem caused by a water pipe in a freezing pipe used in a freezing construction method.
SOLUTION: This freezing pipe 1 is provided with a partition wall 61 at the tip of an outer pipe, and composes a selector valve 6 of the partition wall 61 and an inner pipe 3. The selector valve 6 can communicate the tip part of the inner pipe 3 selectively with the outside of the partition wall 61 of the outer pipe 2 and with the inside of the partition wall 61. With the changeover of the selector valve 6, the inner pipe 3 is used as a pressure water supply pipe when driving the freezing pipe 1 into the ground, and pressure water is jetted from the tip of the outer pipe 2 to assist driving of the outer pipe. When the freezing pipe 1 is put in freezing operation, the inner pipe 3 can be used as a brine supply pipe. A conventional water pipe 11 is thereby dispensed with to solve a problem in installing the water pipe 11 and a problem caused by the water pipe remaining in the outer pipe 2 in refrigerating operation.
COPYRIGHT: (C)2004,JPO