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1. 发明专利

JPH11152741A METHOD AND DEVICE FOR REUTILIZING DISCHARGED MUDDY WATER 失效
公开(公告)号：JPH11152741A
公开(公告)日：1999-06-08
申请号：JP33651397
申请日：1997-11-20
申请人： KAJIMA CORP , S TEC KK , OHBAYASHI CORP , OKUMURA CORP , KASHIYAMA KOGYO KK , SUMITOMO CONST , TOKYO SOKKI KENKYUSHO CO LTD , TOKO CORP , TOKIWA KENSETSU KK , HAZAMA GUMI , FUROO TECHNO KK , MAEDA CONSTRUCTION , MITSUI CONSTR , NIPPON BUNRI KK
发明人： NAKAKUGI TOSHIHIRO , KAJI SHIGEHITO , KASHIMA TORU , FUJII TAKESHI , ODA KEINOSUKE , MURAKAMI TOSHIFUMI , TAKAHASHI HIROSHI , FUJITA SEIICHI , SHINODA YUKIO , SAKUMA TAKAO , NAKAJIMA KOHEI , INOUE KENICHI , KAWADA MITSURU , KANEKAWA KUNIHISA , KAWAAI AKIRA , AOYAMA HIDEKAZU
IPC分类号： E02D3/12 , C02F11/00
摘要： PROBLEM TO BE SOLVED: To provide a method and device to reutilize discharged muddy water in a ground modifying method. SOLUTION: Water generated through high pressure injection in a ground modification method and discharged muddy water containing unhardened solidifying material particles, and earth particles are stored 35 on a ground surface. Particles with a grain size of 70 μm or over are removed by a first particle- removing device 18, and a particles with a grain size of 30 μm or less are removed by a second particle-removing device 27. Discharge liquid 23 containing particles with grain size of 70-10 μm obtained by removing particle with a grain size of 10 μm or less by a third particle-removing device 30 from the removed particle with a grain size of 30 μm or less is reutilized to preparation 25 of a solidifying material. Discharge liquid 38 containing particles with a grain size of 5 μm or less obtained by removing particles with a grain size of 5 μm or more by a fourth particle-removing device 31 from the discharge liquid containing particles with a grain size of 10 μm removed by a third particle removing device 30 is reutilized as water for high pressure injection 29.

2. 发明专利

JPH11117303A CONSTRUCTION METHOD OF SUBMERGED EMBANKMENT TO BE FORMED ON SOFT GROUND 失效
公开(公告)号：JPH11117303A
公开(公告)日：1999-04-27
申请号：JP28240697
申请日：1997-10-15
申请人： MAEDA CONSTRUCTION
发明人： TAKAHASHI HIROSHI , YANAGISAWA TAICHI , SATO FUMINORI , ISHIGURO TAKESHI
IPC分类号： E02D15/10
摘要： PROBLEM TO BE SOLVED: To improve the workability by filling mortar and a light-weight addition material in a bag and feeding the bag in a deformable and unsolidified state onto a soft ground in water to construct an embankment. SOLUTION: A light-weight embankment material 3 composed of mortar 10 that cement is kneaded with fine aggregate and water, and a light-weight addition material 12 that a fluidity-improving material such as foamed styrol beads and air are mixed together, is filled in a bag 5. And the mouth 7 is bound by a string 9. The specific gravity of the embankment material 3 is smaller as compared with an embankment material made of only mortar and as the fluidity-improving material is added, the embankment material has a fluidity on condition that it is not solidified yet. And hence, when the bags are fed on a soft ground 1 in water W in the uncured state of the embankment material, the bag 5 follows the subsidence of the ground and the void 11 after charging it in water is less and the void ratio is decreased. In this way, ground subsidence in an earthquake can be prevented and additional works such as compacting are not required. And further, the construction period and cost can be reduced.

3. 发明专利

JP2002173942A GROUND FLUIDIZATION MEASURE METHOD 失效
公开(公告)号：JP2002173942A
公开(公告)日：2002-06-21
申请号：JP2000372004
申请日：2000-12-06
申请人： MAEDA CONSTRUCTION
发明人： ISHIGURO TAKESHI , TAKAHASHI HIROSHI , TAKEBE TOKUJI
IPC分类号： E02D27/34
摘要： PROBLEM TO BE SOLVED: To provide a ground fluidization measure method for positively protecting a structure from large-scale side flow. SOLUTION: The up stream side in the flow direction of the ground at an underground part of a building 15 is excavated to form a displacement absorbing ditch 50 that absorbs the fluidized displacement of the ground. An underground water discharge passage 70 is provided to reach a liquefied layer 12 from the displacement absorbing ditch 50. When the flow of the ground occurs, the displacement absorbing ditch 50 installed in a nonliquefied layer 11 absorbs the fluidized displacement of the ground, and underground water is discharged from the underground water discharge passage 70 inserted through the liquefied layer 12, to reduce the pressure of underground water generated in the liquefied layer 12.

4. 发明专利

JPH1018281A CURTAIN GROUTING METHOD 失效
公开(公告)号：JPH1018281A
公开(公告)日：1998-01-20
申请号：JP17378396
申请日：1996-07-03
申请人： MAEDA CONSTRUCTION
发明人： INOUE HIROYUKI , TAKAHASHI HIROSHI
IPC分类号： E02D3/12
摘要： PROBLEM TO BE SOLVED: To prevent useless drilling and reduce a construction period and construction cost by measuring specific resistance of a boring hole, finding a prediction degree of permeability at a position separated from the boring hole, comparing it with a really measured degree of the permeability and judging application of the predicted degree of the permeability. SOLUTION: A grouting agent 12 such as cement grout is pressed in many boring holes 11 drilled in a row at prescribed interval L in ground 10. At the time, the grouting agent 12 is grouted in the ground 10 from the side wall of the boring hole 11 to be widened, and solidified in a continuous state to form a curtain-like impervious film 1. Furthermore, water is prevented from intruding and leaking in the ground 10 through the impervious film 1. The specific resistance of the boring hole 11 is measured in a test section area provided in a previously forming range of the impervious film 1, and a prediction degree of permeability is found at a position separated from the boring hole 11 by the specific resistance. It is compared with a really measured degree of the permeability, the application of the prediction degree of the permeability is judged, and the intervals of the boring holes 11 in the execution area judged as the application are determined on the basis of the prediction degree of the permeability.

5. 发明专利

JP2004257171A ROLLING COMPACTION CONTROL METHOD AND DEVICE FOR FILLED FACE 审中-公开
公开(公告)号：JP2004257171A
公开(公告)日：2004-09-16
申请号：JP2003051122
申请日：2003-02-27
申请人： TOKYO ELECTRIC POWER CO , MAEDA CONSTRUCTION
发明人： UCHIDA YOSHIHISA , YANO YASUAKI , OTSUKI TETSUYA , TSURUTA SHIGERU , OURA ATSUSHI , UMEZONO TAKUMA , ISHIDA NOBUHIDE , ISHIGURO TAKESHI , TAKAHASHI HIROSHI , YOSHIDA JUNYA , FUJIYAMA TETSUO
IPC分类号： E02D3/026
摘要： PROBLEM TO BE SOLVED: To provide a rolling compaction control method and device for a filled face capable of considerably reducing labor, time and cost while evaluating the quality of a filling material with high accuracy abreast with rolling compaction control work of the filled face. SOLUTION: Information showing the relation between vibration acceleration generated to a vibrating roller when rolling a test material by the vibrating roller, and the internal friction angle ϕ, water content w and density of the test material corresponding to the vibration acceleration is acquired beforehand (S1-S3). The vibration acceleration of the vibrating roller generated when actually rolling the filled face by the vibrating roller is measured (S4). The internal friction angle and density are immediately computed from the vibration acceleration measured when rolling the filled face, and the previously acquired information to determine whether the filled face is the ground of prescribed quality (S5). COPYRIGHT: (C)2004,JPO&NCIPI

6. 发明专利

JPH09310369A SOUNDNESS CHECKUP METHOD FOR PILE FOUNDATION 失效
公开(公告)号：JPH09310369A
公开(公告)日：1997-12-02
申请号：JP13020596
申请日：1996-05-24
申请人： MAEDA CONSTRUCTION
发明人： TAKAHASHI HIROSHI
IPC分类号： E02D33/00 , G01N33/38
摘要： PROBLEM TO BE SOLVED: To identify sizes and positions of cracks at a low cost by a method wherein Lugeon tests are performed at fixed intervals, utilizing a bore bored to a pile from its upper end toward the lower side, and the crakcs are idnetified, based on the results of the tests. SOLUTION: A bore 3 is bored by boring to a pile, extending from the center at the upper end 2 of the pile toward its lower side. The bore 3 to be bored to the pile 1 shall be small in diameter so that it may not spoil performance (strength or the like) of the pile 1. In the case where a bore is originally provided at a pile 1, the existing bore is used as it is. Lugeon test, a test for checking permeability at a ground or the like, is performed at fixed intervals, and positions and sizes of cracks 4 are identified, based on the results of the tests. Thereby, cracks not only at the periphery of a wall of the bored hall, but also at positions piercing through dominant sections against the soundness of the pile can be identified for their sizes and positions. Distribution density of the cracks can also be found.

7. 发明专利

JPH04272326A METHOD FOR INSTALLING WATERPROOF SHEET ON CAST IN SITU DIAPHRAGM WALL 失效
公开(公告)号：JPH04272326A
公开(公告)日：1992-09-29
申请号：JP5608991
申请日：1991-02-27
申请人： MAEDA CONSTRUCTION
发明人： KAYAMA YASUHARU , AKASAKA YUJI , TAKAHASHI HIROSHI
IPC分类号： E02D5/20 , E02D31/02
摘要： PURPOSE:To install a waterproof sheet in the water stop condition with fittings at the same time when a reinforcing bar basket is installed. CONSTITUTION:A waterproof sheet 8 is installed to a side hardware 7 disposed at the side edge of right and left fittings 2, 2 at the outside of a leading element wall body 6 of an underground structure, the sheet adhering at the right and left edges beforehand. The waterproof sheet 8 is put into an excavated groove 1 integrally with the fitting 2, 2 at the same time when the fittings 2, 2 are installed Between the right and left fittings 2, 2 in an excavated groove 1', a reinforcing bar basket 9, in which a vertically long guide side frame 11 disposed at the right, and left edges of waterproof sheet 12 is installed in such a manner as to move back and forth and right and left, is installed at the right and left ends of external surface positioning at the outside of trailing element wall body 10 of an underground structured. When the reinforcing bar basket 9 is installed, the guide side frame 11 is put into the excavated groove 1' together with the waterproof sheet while connecting via side hardware 7' disposed at the side edge of fitting 2, 2 and a cut-off joint 15.

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