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1. 发明专利

JPH11152805A WATER STOP PLATE, WATER STOP STRUCTURE AND CONFIRMING METHOD FOR WATER STOP PERFORMANCE 失效
公开(公告)号：JPH11152805A
公开(公告)日：1999-06-08
申请号：JP31937197
申请日：1997-11-20
申请人： KAJIMA CORP , TOKYO GAS CO LTD , BRIDGESTONE CORP
发明人： YASUNAGA MASAMICHI , OGAWA TOMOYUKI , FUKADA ATSUHIRO , KASHIWAMURA TOMOHIKO , SAKATA KEIICHI , NAKANO MASABUMI , KAWAMURA YOSHINORI , MIYAZAKI SHINICHI , NAKAYAMA SHINJI
IPC分类号： E04B1/684 , F17C3/00 , G01M3/04
摘要： PROBLEM TO BE SOLVED: To provide a water stop plate, a water stop structure and a confirming method for confirming their water stop performances which are used for a structure such as an underground tank. SOLUTION: An upper support plate 25 is attached to a side wall steel plate 21 through a welded part 27 by welding, and a rubber water stop plate 41 is set on a lower side of the upper support plate 25. A vertical part 33b of a L-shaped lower support plate 33 is set at a position where it comes into contact with the side wall steel plate 21, and a horizontal part 33a of the L- shaped lower support plate 33 is attached to a bottom lower steel plate 23, and the lower end of a rubber water stop plate 41 is placed on the upper part of the vertical part 33b. Pressing down plates 29, 37 are placed on the rubber water stop plate 41, and the upper support plate 25 and the pressing down plate 29 are mutually fastened with a bolt 31, and the pressing down plate 37 and the vertical part 33b are mutually fastened with a bolt 39.

2. 发明专利

JPH0718914A CONSTRUCTION METHOD FOR TANK 失效
公开(公告)号：JPH0718914A
公开(公告)日：1995-01-20
申请号：JP8110392
申请日：1992-04-02
申请人： TOKYO GAS CO LTD , OHBAYASHI CORP , KAJIMA CORP , SHIMIZU CONSTRUCTION CO LTD , TAISEI CORP , MITSUI CONSTR
发明人： NAKANO MASABUMI , KAWAMURA YOSHINORI , YAMASHITA HIROBUMI , AMANO SATORU , YASUNAGA MASAMICHI , TAKEUCHI HITOSHI , KURODA MASANOBU , IMOJIMA ATSUO , MATSUMOTO TADASHI , KOBAYASHI MINEO , KATO MASATOSHI , WATANABE MUNEKI
IPC分类号： E04H7/18
摘要： PURPOSE:To shorten a term of works by a method wherein beams are constructed by means of a mobile type working truck from object positions, situated facing each other, at the upper end of the side wall of a tank toward a central part, and in following works, intermediate beams are constructed, in order, and gaps between adjoining beams are closed with concrete to build a roof. CONSTITUTION:In building of a roof made of concrete at a tank 1 to store liquid, a plurality of beams 7 by using which a part of a roof is built are built by a mobile type working truck 8 from the positions, situated facing each other, of the upper end of a tank side wall 3 toward the central part of a roof intended to be built, and interjoined at a central part. Further, intermediate beams 11 and 12 are built, in a similar manner described above, from an intermediate point between the beams 7 on the side wall 3 to build a roof. Finally, reinforcing bars are arranged in gaps between the adjoining beams and concrete 10 is placed for closing. A need for timbering to build a roof is eliminated and a work for an interior is progressed simultaneously with building of the roof. This method simplifies execution of a work and shortens a term of works.

3. 发明专利

JPH074112A ROOF CONSTRUCTION METHOD 失效
公开(公告)号：JPH074112A
公开(公告)日：1995-01-10
申请号：JP8109992
申请日：1992-04-02
申请人： TOKYO GAS CO LTD , OHBAYASHI CORP , KAJIMA CORP , SHIMIZU CONSTRUCTION CO LTD , TAISEI CORP , MITSUI CONSTR
发明人： MINEGISHI KOJI , NAKANO MASABUMI , SHIRASAGO TAKESHI , SAKAMOTO SHUICHI , YASUNAGA MASAMICHI , TAKEUCHI HITOSHI , KURODA MASANOBU , IMOJIMA ATSUO , NAKANO KEN , NADA MINORU , KATO MASATOSHI , WATANABE MUNEKI
IPC分类号： E02D29/045 , E04H7/18 , E21D13/00
摘要： PURPOSE:To reduce the cost for erection structures at the time the roof of an underground tank or the like is constructed, and also to shorten the construction period. CONSTITUTION:A cylindrical continuous pile 11 having air-permeability resistance are embedded in the ground G, and on the ground G on the inner circumferential side of this continuous pile 11, a ring dome 5 is constructed along the circumferential direction of the upper end of the continuous pile 11 so as to be air-tightly connected. A formwork 13 is supported by erection materials 12 in a dome shape so as to cover the upper part of the continuous pile 11. Air is filled by a blower 15 into the space K that has been formed by the formwork 13 on the ground G on the inner circumferential side of the continuous pile 11, and that has been airtightly closed by the formwork 13, the continuous pile 11, and the ground water S1 in the ground G on the inner circumferential side of the continuous pile 11, and a dome roof 4 is constructed by placing concrete on the outside of the formwork 13.

4. 发明专利

JPH074110A RING BEAM STRUCTURE OF DOME ROOF 失效
公开(公告)号：JPH074110A
公开(公告)日：1995-01-10
申请号：JP8109592
申请日：1992-04-02
申请人： TOKYO GAS CO LTD , OHBAYASHI CORP , KAJIMA CORP , SHIMIZU CONSTRUCTION CO LTD , TAISEI CORP , MITSUI CONSTR
发明人： MINEGISHI KOJI , KAWAMURA YOSHINORI , SHIRASAGO TAKESHI , YAMASHITA HIROBUMI , YASUNAGA MASAMICHI , TAKEUCHI HITOSHI , KURODA MASANOBU , IMOJIMA ATSUO , IMAI YOSHIAKI , NADA MINORU , KATO MASATOSHI , YAMADA TAKEMASA
IPC分类号： E04B1/32 , E04G21/12 , E04H7/18
摘要： PURPOSE:To increase strength by extending upward the upper end part of a ring beam along the circumferential direction, on the outer circumferential end part of a dome roof. CONSTITUTION:On the outer circumferential end part of a dome roof 4 being constructed on the upper opening of the cylindrical side wall 3 of an underground tank or the like, the upper end part of a ring beam 11 is extended upward from the circumferential peripheral part of the roof 4 for increasing the sectional area of the ring beam 11. By stretching a plurality of PC steel wires 7 in the circumferential direction in the ring beam 11, the range in which prestress can be introduced can be increased, so that the dome roof 4 can be brought into a very high-strength condition. Thus, even if the lower side of the ring beam 11 is reduced for improving the retaining and water stoppage at the time of construction, and the height of the upper end part of the continued wall 4 being constructed on the outer circumference of the cylindrical side wall 3 is increased, the range in which prestress can be introduced can be sufficiently secured, so that an underground tank of a very high reliability can be obtained.

5. 发明专利

JPH0960132A CUT-OFF BOARD 失效
公开(公告)号：JPH0960132A
公开(公告)日：1997-03-04
申请号：JP21185095
申请日：1995-08-21
申请人： KAJIMA CORP , TOKYO GAS CO LTD
发明人： YASUNAGA MASAMICHI , UENO MAMORU , NAKASHITA KENJI
IPC分类号： E04B1/684
摘要： PROBLEM TO BE SOLVED: To provide a cut-off board having high cut-off properties for an underground structure. SOLUTION: This cut-off board 1 comprises a flexible material, such as a rubber and provides cylinder-shaped expansion areas 17a and 17b on both ends. The expansion areas 17a and 17b are provided with pressurizing areas 19a and 19b inside respectively. There are provided projections 21a and 21b respectively between the expansion areas 17a and 17b on both ends of the cut-off board 1 and the central area. A spot between the expansion area 17a and the projection 21a is buried in a side wall 5 of an underground tank. During working time, water or air is filled up in the pressurizing areas 19a and 19b and pressurized. The front surface area outside the expansion areas 17a and 17b is increased, thereby joining the expansion area 17a with the side wall 5 and the expansion area 17b with the bottom plate 7 so as to further enhance barrier properties.

6. 发明专利

JPH094267A FLOATING BODY TYPE UNDERGROUND TANK 失效
公开(公告)号：JPH094267A
公开(公告)日：1997-01-07
申请号：JP15730495
申请日：1995-06-23
申请人： KAJIMA CORP , TOKYO GAS CO LTD
发明人： YASUNAGA MASAMICHI , TAKAGI ATSUSHI , NAKASHITA KENJI
IPC分类号： E02D29/045 , B65D88/76 , E02D29/09 , E04H7/00 , E21D13/00 , F17C13/08
摘要： PURPOSE: To provide a floating body type underground tank, construction cost of which is reduced, by scaling down the size of members and the size of a spare space. CONSTITUTION: A cutoff wall 7 functioning as a vertical landslide protection wall in combination is installed annularly so as to reach an impermeable layer 5 for constructing a floating body type underground tank 1 into the ground 3, and the inside of the cutoff wall 7 is excavated up to the place of flooring 9 and a bottom slab 13 is built. A side wall 11 is mounted on the bottom slab 13, and a domy roof 15 is placed on the side wall 11. Adjusting water 31 is introduced between the cutoff wall 7 and the side wall 11 and between the place of flooring 9 and the bottom slab 13, and a floating body type underground tank 1 body is floated. The level of the adjusting water 31 is changed in response to the quantity of an LNG 35 stored in the floating body type underground tank 1.

7. 发明专利

JPH0742405A WATER-STOPPING STRUCTURE OF UNDERGROUND TANK 失效
公开(公告)号：JPH0742405A
公开(公告)日：1995-02-10
申请号：JP20831593
申请日：1993-07-30
申请人： KAJIMA CORP , TOKYO GAS CO LTD
发明人： YASUNAGA MASAMICHI , TAKAGI ATSUSHI , NAKASHITA KENJI , KANAZAWA RYOICHI
IPC分类号： E02D31/02 , B65D88/76 , E04H7/18
摘要： PURPOSE:To prevent underground water from penetrating into the bottom of an underground tank by providing a freezing pipe near the contact area between a skeleton concrete of the underground tank and the ground to freeze the surrounding concrete and ground by circulating nonfreezing low temperature fluid. CONSTITUTION:A freezing pipe 11 is laid near the contact area between a bottom plate 7 of an underground tank of concrete and the ground 5 comprising a water-impermeable layer along the circumference of the plate 7. Next, a nonfreezing low temperature fluid such as a water solution of ethylene glycol is circulated through the pipe 11 to freeze the concrete and ground around the pipe 11 to obtain a frozen part 13, thus preventing the underground water from penetrating into the bottom of the tank. As a result, water stopping can be surely achieved. And since the concrete and ground having large specific heat is located deep in the ground and frozen, once the concrete and ground have been frozen, a large amount of heat is not required to keep the frozed state. Particularly in the case that, as is the case of an LNG underground tank, the ground around the tank has been cooled by the cold load of LNG, required amount of heat is small and hence a refrigerator 15 of small capacity can be used.

8. 发明专利

JPH073826A CONSTRUCTION METHOD OF DOME-LIKE ROOF IN UNDERGROUND TANK 失效
公开(公告)号：JPH073826A
公开(公告)日：1995-01-06
申请号：JP8109492
申请日：1992-04-02
申请人： TOKYO GAS CO LTD , OHBAYASHI CORP , KAJIMA CORP , SHIMIZU CONSTRUCTION CO LTD , TAISEI CORP , MITSUI CONSTR
发明人： NAKANO MASABUMI , KAWAMURA YOSHINORI , SHIRASAGO TAKESHI , AMANO SATORU , YASUNAGA MASAMICHI , TAKEUCHI HITOSHI , KURODA MASANOBU , IMOJIMA ATSUO , NAKANO KEN , NADA MINORU , KATO MASATOSHI , YAMADA TAKEMASA
IPC分类号： E02D29/045 , E04G21/12 , E04H7/18 , E21D13/00
摘要： PURPOSE:To reduce an initial amount of prestress to be introduced in the case a dome-like roof of an underground tank is constructed. CONSTITUTION:After an earth retaining wall 1 is constructed in the ground G, a dome-like roof 2 is constructed and is temporarily borne on an opening edge 1a facing to the ground of the earth retaining wall 1, and then, a primary prestress is introduced to the peripheral surface 2a of the roof 2 along the circumferential direction. After that, a bottom slab 4 and a part 5a of the side wall continued to the bottom slab 4 are constructed in an excavated hole 3 formed inside the earth retaining wall 1 to make a space 6 between part 5a of the side wall and the roof 2, and a secondary prestress is introduced to the peripheral surface 2a of the roof 2. In the case the primary prestress is introduced, horizontal thrust force occurring in the roof 2 is reduced by excavation load W of the ground G, and in the case the secondary prestress is introduced, prestress force is not propagated to the side wall, so that an initial amount of prestress is reduced as a whole.

9. 发明专利

JPH11152766A RUBBER WATER STOP SLATE FOR HIGH WATER PRESSURE AND PRODUCTION THEREOF 失效
公开(公告)号：JPH11152766A
公开(公告)日：1999-06-08
申请号：JP31941997
申请日：1997-11-20
申请人： KAJIMA CORP , TOKYO GAS CO LTD , HAYAKAWA RUBBER
发明人： YASUNAGA MASAMICHI , OGAWA TOMOYUKI , FUKADA ATSUHIRO , SATO KENJI , SAKATA KEIICHI , NAKANO MASABUMI , KAWAMURA YOSHINORI , MIYAZAKI SHINICHI , TANAKA HIDEO , NAKAMU SADAYOSHI
IPC分类号： E02D31/04 , B29C47/02 , B29K21/00 , B29L9/00
摘要： PROBLEM TO BE SOLVED: To improve the water stop property by stopping a high water pressure part such as a position between the side wall and the bottom slab of a large scale and extremely deep underground tank with a rubber water stop plate provided with a reinforcing cloth at the surface of the body. SOLUTION: The body is formed of plate-form parts 2a, 2b, anchorage rib parts 3a, 3b, and a semicircular valve 5. A butyl rubber sheet 7 with reinforced cloth is stuck on the surface of the ribs 3a, 3b and the valve 5 to form a rubber water stop plate 1 having a slant section and arrange it in the peripheral direction between the bottom plate 111 and the side wall 109 of the underground tank. Underground water flows in the clearance 11 between the side wall 109 and the bottom plate 111 and the water pressure acts on the stop plate 1 and ribs 3a, 3b are pushed on the side wall 109 and the bottom plate 111 respectively and the sheet 7 is held between the ribs 3a, 3b and the side wall 109 and the bottom plate 111 and anchored therein. The anchoring force increases proportionally to the water pressure as the depth increases. The sheet 7 of which both ends are anchored by the ribs 3a, 3b prevents deformation of the water stop plate 1 resulting from the water pressure. In this way, an absorbing performance of deformation can be increased and the stop plate can cope with a high water pressure.

10. 发明专利

JPH06346621A ROOF CONSTRUCTION METHOD OF UNDERGROUND TANK 失效
公开(公告)号：JPH06346621A
公开(公告)日：1994-12-20
申请号：JP8110292
申请日：1992-04-02
申请人： TOKYO GAS CO LTD , OHBAYASHI CORP , KAJIMA CORP , SHIMIZU CONSTRUCTION CO LTD , TAISEI CORP , MITSUI CONSTR
发明人： MINEGISHI KOJI , NAKANO MASABUMI , SHIRASAGO TAKESHI , YAMASHITA HIROBUMI , YASUNAGA MASAMICHI , TAKEUCHI HITOSHI , KURODA MASANOBU , IMOJIMA ATSUO , SAKATE MASAAKI , KOBAYASHI MINEO , KATO MASATOSHI , WATANABE MUNEKI
IPC分类号： E02D29/045 , E04H7/02 , E04H7/18 , E21D13/00 , E02D29/04
摘要： PURPOSE:To reduce costs required for erecting a structure when a roof of a tank is constructed and shorten the whole construction period of a tank. CONSTITUTION:In a method for constructing a roof of an underground tank wherein the roof of the tank is constructed on the upper part of a side wall of a cylindrical body with bottom comprising a side wall and a bottom plate which is constructed in an excavated hole, after an earth retaining wall is erected, a primary excavated hole is bored at the upper part of the excavated hole. Next, a cylindrical structure 10 is constructed in the primary excavated hole to form the upper part of a side wall of the cylindrical body. Thereafter a support 9 is provided in the cylindrical structure 10. And a precast roof member is set on the upper steel frame 14 of the support to construct the roof of a tank.

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