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1. 发明专利

JPH11181773A STRUCTURE AND METHOD FOR RETAINING EARTH 失效
公开(公告)号：JPH11181773A
公开(公告)日：1999-07-06
申请号：JP34818297
申请日：1997-12-17
申请人： TOKYO ELECTRIC POWER CO , TODEN SEKKEI KK , SHIMIZU CONSTRUCTION CO LTD
发明人： SAITO HIDEAKI , YOKOYAMA HARUO , AOYANAGI TAKAYUKI , YOSHIDA SHIGERU , SHIMAZAKI YASUYOSHI , MURAKAMI KAZUO , TORII KAZUYOSHI
IPC分类号： E02D17/04
摘要： PROBLEM TO BE SOLVED: To reduce the thickness of an earth retaining wall and the quantity of arranging reinforcing bars by continuously stacking arch-shaped precast slabs in horizontal section to construct the earth retaining wall, and to reduce the bending stress caused by the earth and hydrostatic load from the peripheral ground. SOLUTION: Arc-shaped precast slabs 10 in horizontal section are stacked in the perpendicular plane against the earth and hydrostatic load W from a peripheral ground 7 to continuously construct earth retaining walls in the horizontal direction. A sheath reinforcement is fixed to the lowest stage precast slab 10, and the precast slabs are stacked perpendicularly by inserting the sheath reinforcement in a through hole provide in each precast slab 10, and integratedly tightened by the sheath reinforcement, each end of the precast slabs 10 is supported by a column 29 or floor slab 22 of a building 20, and mating parts of adjacent precast slabs 10 are joined by a joining means such as welding. The horizontal section of the precast slabs 10 may be trapezoidal or triangular. The bending stress generated in the earth retaining wall 11 by the earth and hydrostatic load W is reduced by the arch effect, and the quantity of material to be used can be reduced.

2. 发明专利

JPH11253833A SEPARATION OF CONTAMINANT AND WASHING DEVICE 失效
公开(公告)号：JPH11253833A
公开(公告)日：1999-09-21
申请号：JP6144198
申请日：1998-03-12
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： WATANABE TOSHIAKI , TORII KAZUYOSHI , TORII KATSUYUKI
IPC分类号： B09B5/00 , B03B5/28
摘要： PROBLEM TO BE SOLVED: To prevent the sticking of fine powder to a regenerated aggregate of a concrete rubbish by charging a material to be treated into a water tank, discharging contaminant floating on water to outside of the water tank by a carry-out conveyer, carrying a contaminant sinking under water by an underwater carrying conveyer to wash under water and discharge it to outside of the water tank. SOLUTION: The concrete rubbish 11, the chips 12 of the wood and the plastic, which are not captured by a magnetic separator 8, are charged into the water tank 2. The contaminant such as the wood and plastic chips 12 floating on water is discharged to outside of the water tank 2 by the carry-out conveyer 5 and transported to a prescribed place by a receiving conveyer 7. On the other hand, the concrete rubbish 11 sinking under water is washed to separate the fine powder stuck to the surface while being carried in the water tank 2 by the underwater carrying conveyer 3 and after washed, transported to a prescribed place by a receiving conveyer 4. The fine powder is sunk to the bottom of the water tank 2, deposited on an under end part of a downwardly inclined bottom surface and discharged with a discharge port 2b opened to be collected on a prescribed place.

3. 发明专利

JP2002341089A DISMANTLING METHOD AND DISMANTLING DEVICE OF SHIELDING WALL 失效
公开(公告)号：JP2002341089A
公开(公告)日：2002-11-27
申请号：JP2001152826
申请日：2001-05-22
申请人： SHIMIZU CONSTRUCTION CO LTD
发明人： TSUKAHARA YUICHI , TORII KAZUYOSHI
IPC分类号： E04G23/08 , G21F9/30
摘要： PROBLEM TO BE SOLVED: To provide a dismantling method and a dismantling device of a shielding wall capable of dismantling and removing the shielding wall by a direct work by an operator by suppressing below a tolerance the radiation to which the operator or the like is exposed, heightening work efficiency, and reducing a work cost. SOLUTION: In this method, an opening part 12a is formed on at least a part of a lid part 12 of the shielding wall 1 involving a reactor body, and the activated shielding wall 1 remaining after removing the reactor body is dismantled. In the method, two processes are repeated alternately, namely, moving process for moving a moving floor slab 20 movable in the vertical direction inside the shielding wall 1, downward as long as a prescribed distance, while shielding the radiation from below, and a shielding wall removing process for cutting the shielding wall 1 positioned on the upper side than the moving floor slab 20 into blocks, and conveying and removing the cut shielding wall 1 to the outside.

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