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1. 发明专利

JPH038924A PRELOADING BAG BODY DEVICE OF PILE POINT GROUND 失效
公开(公告)号：JPH038924A
公开(公告)日：1991-01-16
申请号：JP14306389
申请日：1989-06-07
申请人： FUJITA CORP , BRIDGESTONE CORP
发明人： YAMAMOTO ITSUO , HAMAZUKA SEIJI , MARU TAKAHIRO , UEDA SHIGEO
IPC分类号： E02D5/62 , E02D5/34
摘要： PURPOSE:To facilitate the insertion of a reinforcement cage or an existing pile to the ground by forming a bag body and a protective case housing the bag body into a circular body provided with a through-hole in the central part thereof and, at the same time, making it possible to expand along the circular body. CONSTITUTION:A pressure rubber closed bag body 2 is fitted to a steel protective case 9 to make a bag body device 1. The bag body 2 is formed into a circular body having a center through-hole passing through from top to bottom, the sides thereof are capable of expanding in the vertical direction with bellows, and coupling pipes 4 and 5 are buried into the upper surface thereof together as a unit. The protective case 9 is so constituted that a lower case 17 is loosely fitted to the periphery of an upper case 10, the bag body 2 is placed upward of the upper case 10, and when the lower case 17 is fitted to the bag body from the bottom, the center through-holes of the circular bodies are overlapped to form a center through-hole 22.

2. 发明专利

JPH06294136A SOIL IMPROVEMENT PILE 失效
公开(公告)号：JPH06294136A
公开(公告)日：1994-10-21
申请号：JP8202693
申请日：1993-04-08
申请人： FUJITA CORP
发明人： HAMAZUKA SEIJI
IPC分类号： E02D3/08 , E02D27/34
摘要： PURPOSE:To reinforce a bearing capacity of a foundation ground in a soft ground by enveloping an outer peripheral surface of large-sized gravel piles prepared under a post of a structure with a material having a specified strength and durability. CONSTITUTION:With an earth drilling machine or the like, a pile hole 2 is excavated in a soft ground A under a post where the load of a structure is concentrated. A bag-attached cage 5 made of a mesh sheet is mounted to a reinforcing bar frame 3 and inserted into the pile hole 2. Then, gravels 6 are filled in the cage 5, thereby building a gravel pile. A gravel mat 7 is spread to a foundation where blind concrete is cast on the mat 7, thereby building up a structural skeleton B in the order of a pressure resistant board 8 and an underground beam 9 and the foundation. Then, when this is aplied to a soft cohesive soil gound, if the other part which excludes a soil improvement pile sinks, the load is concentrated on the gravel pile made of large-sized gravels 6 so that the gravel pile 6 is bulged horizontally so that it may work again as a direct foundation as a whole and stabilize the foundation ground gradually. This construction makes it possible to reinforce a bearing capacity of the foundation ground.

3. 发明专利

JPH04194121A BUILDING METHOD FOR UNDERGROUND BODY FOR BUILDING 失效
公开(公告)号：JPH04194121A
公开(公告)日：1992-07-14
申请号：JP32102990
申请日：1990-11-27
申请人： FUJITA CORP
发明人： YAMAMOTO ITSUO , HAMAZUKA SEIJI , KOBAYASHI KATSUMI , MARU TAKAHIRO
IPC分类号： E02F7/00 , E02D27/10 , E02D29/045 , E21D13/00
摘要： PURPOSE:To improve work executing ability of an underground body by a method wherein after excavation down to a given depth is executed, a stage is assembled and fixed to structural central columns and a landslide protection wall through jacks, the stage is acted as a strut, and used for excavation of the whole surface of a ground below the stage and construction of an upper slab and a beam. CONSTITUTION:A landslide protection wall 1 forming an underground outer wall and a pile and structural central columns 3 to support a pile 2 below an inside column and upper concrete are built from a ground surface part. After first stage excavation is completed, a stage 4 is fixed in a position to the central columns 3 and the landslide protection wall 1 by means of jacks 5 and 6. An excavator previously mounted on the under surface of the stage 4 is operated to excavate a ground below the under surface of the stage 4. Excavated soil is discharged by means of an excavated soil horizontal and vertical conveying member interlocking with movement of an excavator 7. Meanwhile, by means of the stage serving as a support bed, forms for a slab 11 and a beams 12 are frames and reinforcing bars are arranged to place concrete. After concrete of the slab 11 is cured, hydraulic jacks 5 and 6 are contracted, the stage 4 is lowered to a given position, and a preceding process is repeated. This method performs high-efficient discharge of excavated soil, ensures safety of a work, and executes a work even at a soft ground without any trouble.

4. 发明专利

JPH028415A METHOD AND DEVICE FOR CONSTRUCTION OF LANDSLIDE PROTECTION WALL 失效
公开(公告)号：JPH028415A
公开(公告)日：1990-01-11
申请号：JP15790588
申请日：1988-06-28
申请人： FUJITA CORP
发明人： YAMAMOTO ITSUO , HAMAZUKA SEIJI
IPC分类号： E02D17/04
摘要： PURPOSE:To inhibit the deformation and stress of a landslide protection wall at small values, and to decrease the number of the stages of all timberings at the time of large depth by lowering two stages of the upper and lower timberings while the landslide protection wall is suppressed alternately in a measuring worm manner and advancing excavation. CONSTITUTION:Primary excavation is executed in an extent that the deformation of a landslide protection wall 1 is not increased, and two stages of upper and lower timberings A, A' are installed into an excavation section. Secondary excavation is conducted, and the lower-stage timbering A is brought down near an excavation surface B by a jack and fixed. A normal timbering C1 at a first stage is mounted to the upper section of the upper-stage timbering A', and the upper-stage timbering A' is lowered up to the upper section of the lower-stage timbering A by the jack. Excavation, the descent of the lower- stage timbering A, falling near the lower-stage timbering A of the upper-stage timbering A', and the installation of the normal timbering to the upper section of the upper-stage timbering A' are repeated, and excavation is advanced.

5. 发明专利

JPS6410821A GROUND ANCHOR 失效
公开(公告)号：JPS6410821A
公开(公告)日：1989-01-13
申请号：JP16126587
申请日：1987-06-30
申请人： FUJITA CORP
发明人： HAMAZUKA SEIJI
IPC分类号： E02D5/80
摘要： PURPOSE:To make drawing of tensile steel materials impossible by increasing the resticting force of grout by a method in which a tensile steel material is surrounded by a conical sheath tube, and a grout is packed into the sheath tube and also the space between the sheath tube and the anchor hole. CONSTITUTION:A tensile steel material 13 consisting of PC twist steel wires is inserted into an anchor hole 11 excavated in the ground 12 and the lower end of the material 13 is surrounded by a conical steel sheath tube 14 having a diameter gradually increased toward the lower part. Cement mortar 15 of a high strength is packed into the sheath tube 14 and cement mortar 16 is packed into the space between the tube 14 and the anchor hole 11.

6. 发明专利

JPH05202521A EARTH ANCHOR 失效
公开(公告)号：JPH05202521A
公开(公告)日：1993-08-10
申请号：JP3699292
申请日：1992-01-29
申请人： TODA CONSTRUCTION , ANDO CONSTR , KONOIKE CONST , SUMITOMO CONST , ZENITAKA CORP , TOKAI KOGYO CO LTD , NISHIMATSU CONSTR CO LTD , FUJITA CORP , MITSUI CONSTR , S II KK , KOZO KOJI KK , NITTOC CONSTRUCTION , JAPAN FOUND ENG
发明人： WATABE TERUYA , NEMOTO HISASHI , YUTANI TAKAO , HIRANO SAKAE , MORIMOTO TOSHIYUKI , ARIYAMA MINEO , TAKEUCHI YOSHIO , HAMAZUKA SEIJI , YAMAMOTO KAZUHIRO , SATO HIROYUKI , HIRAISHI GOICHI , SUGA KOICHI , FUJITA MASAKAZU
IPC分类号： E02D5/80
摘要： PURPOSE:To secure necessary covering thickness of grout by a method in which an intermediate centralizer having a link device capable of sliding and projecting a steel tube and of positioning an anchor-fixing part at the center of an excavated pit is provided for the steel tube of the anchor-fixing part. CONSTITUTION:A casing N is inserted into an excavated pit, M inclined at about 15 deg. or more to the horizon. A grout 16 is injected into the pit M and a tension member 1 having an intermediate centralizer 2 and a tip centralizer 3 is inserted into the pit M. The casing N is drawn out and a grout 16 is injected to the tip of an anchor-fixing part 7. The centralizers 2 and 3 are then taken out of the casing N and at the same time the link device 8 is projected to the wall of the pit M by spring to push up the fixing part 7 to near the center of the pit M. Grout 16 is injected and hardened to form an anchor, and the head of the member 1 is tensed to fix it.

7. 发明专利

JPH05202519A EARTH ANCHOR AND FIXING THEREOF 失效
公开(公告)号：JPH05202519A
公开(公告)日：1993-08-10
申请号：JP3699092
申请日：1992-01-29
申请人： TODA CONSTRUCTION , ANDO CONSTR , KONOIKE CONST , SUMITOMO CONST , ZENITAKA CORP , TOKAI KOGYO CO LTD , NISHIMATSU CONSTR CO LTD , FUJITA CORP , MITSUI CONSTR , S II KK , KOZO KOJI KK , NITTOC CONSTRUCTION , JAPAN FOUND ENG
发明人： WATABE TERUYA , NEMOTO HISASHI , YUTANI TAKAO , HIRANO SAKAE , MORIMOTO TOSHIYUKI , ARIYAMA MINEO , TAKEUCHI YOSHIO , HAMAZUKA SEIJI , YAMAMOTO KAZUHIRO , SATO HIROYUKI , HIRAISHI GOICHI , SUGA KOICHI , FUJITA MASAKAZU
IPC分类号： E02D5/80
摘要： PURPOSE:To sufficiently secure the covering thickness of grout by a method in which linked centralizers are set on the front and rear ends of earth anchor and projected outwards in an excavated skew pit to centrally position the earth anchor. CONSTITUTION:A tip centralizer 2 and an intermediate centralizer 3 are each attached to the tip cap 5 of a tension member 1 and an attached steel tube 6. The centralizers 2 and 3 are each made up of a link device projected outwards by spring and a stopper to hold the projected position. A cylindrical casing is inserted into an excavated skew pit and the centralizers 2 and 3 in contracted state are inserted into the casing. The casing drawn out to expand the centralizers 2 and 3 in order to position the tension member at the center of the pit. During the period, a grout is injected to form an anchor 4, and after the grout hardens, the head of the tension member 1 is tensed by jacks to fix it. The sufficient covering thickness of the grout in the skew pit can thus be secured.

8. 发明专利

JPH04347267A CONSTRUCTION OF BUILDING 失效
公开(公告)号：JPH04347267A
公开(公告)日：1992-12-02
申请号：JP14959991
申请日：1991-05-24
申请人： FUJITA CORP
发明人： MUNEMURA YOSHISADA , SUZUKI RYOICHI , NAGAI OSAMU , HAMAZUKA SEIJI
IPC分类号： E04B1/35 , E04G21/16
摘要： PURPOSE:To automatically construct a multi-floor and multi-span building body by use of a building construction device without use of a towercrane even in rain and increase safety and working efficiency. CONSTITUTION:A multi-floor and multi-span building is devised into blocks. The body of multi-floor and multi-span blocks are constructed by use of a crane or the like. Next, a building is constructed every block in turn by a building construction device 1 provided with a transferable base 6 and a ceiling traveling crane 10. In this construction, respective composing devices of the building construction device are automatically operated.

9. 发明专利

JPH04319121A CONSTRUCTION OF UNDERGROUND BASE OF BUILDING 失效
公开(公告)号：JPH04319121A
公开(公告)日：1992-11-10
申请号：JP8403991
申请日：1991-04-16
申请人： FUJITA CORP
发明人： YAMAMOTO ITSUO , HAMAZUKA SEIJI , KOBAYASHI KATSUMI , MARU TAKAHIRO
IPC分类号： E02D17/04 , E02D29/045 , E02F3/30 , E21D13/00
摘要： PURPOSE:To secure the safety of operation by improving working environments and by greatly saving powers required in constructing the underground base of a building by an inverted placing method. CONSTITUTION:A sheathing wall 1 and a core columns 3 are constructed from the ground's surface. After the primary excavation is ended, an excavator 8 is movably hung down, and a working stage 5 having floor frames 4 on the upside is assembled for each span and hung down from the upper stage slab to a given level through a hanging rod 11. Floor reinforcing bars 6 are arranged on the floor frame 4 of each stage and between the floor frames 4 on the adjacent span stages 5, and concrete is placed to construct the basement slab. The stage 5 is hung down to a given position after the lapse of a curing period, and floor concrete is placed by using the floor frames. These processes are repeated.

10. 发明专利

JPH07119144A PREVENTIVE STRUCTURE OF CONCRETE LEAKAGE OF PRIOR ELEMENT IN CAST-IN-PACE CONCRETE UNDERGROUND WALL 失效
公开(公告)号：JPH07119144A
公开(公告)日：1995-05-09
申请号：JP26633993
申请日：1993-10-25
申请人： FUJITA CORP , TONE CHIKA GIJUTSU KK
发明人： HAMAZUKA SEIJI , MORI KOICHI , OGISU KAZUYOSHI , IKEMI HITOSHI
IPC分类号： E02D5/20
摘要： PURPOSE:To closely stick a concrete underground wall on the bottom and side faces, by arranging a steel partition formed so as to correspond to the bottom shape of the excavated groove, between the prior element and the posterior element of the cast-in-place underground concrete wall and arranging mesh sheets coming in contact with the inner wall face on the steel plate and metal laths at the outside of the sheet. CONSTITUTION:Trench excavation and slime treatment are carried out in a prior element portion 1. And a steel rod cage 3 provided with a partition plate 2 made of H-shaped steel materials are erected at both sides thereof. At that time, the front end of steel plate 2 is set to correspond to the groove bottom. A metal lath 4 and a mesh sheet 5 are attached to the side end 2a thereof so as to closely contact the excavated ground. The steel plate 2 is allowed to press in the groove bottom by its own weight and securely partition the prior element 1 and the posterior element 1'. In this way, it prevents the prior concrete from leaking to the posterior concrete and allows cement paste to ooze out of the sheet 5 and the lath 4 to improve the adhesion.

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