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1. 发明专利

JP2001318167A DEVICE AND METHOD FOR PROSPECTING UNDERGROUND GAS 失效
公开(公告)号：JP2001318167A
公开(公告)日：2001-11-16
申请号：JP2000133377
申请日：2000-05-02
申请人： TAISEI CORP
发明人： HIGUCHI YUICHI , TOMIOKA EIKICHI , USUI NAOTO
IPC分类号： E21B43/00 , G01F1/00 , G01N1/22 , G01V9/00
摘要： PROBLEM TO BE SOLVED: To provide a device and method for prospecting underground gas by which a produced underground gas can be prospected quickly and the leakage of a toxic gas to the ground surface can be prevented. SOLUTION: The device for prospecting underground gas is constituted of a pressure sensor, a gas intake port, a prospecting rod equipped with a packer, and a press-inserting device. The prospecting rod is press-inserted into the ground and the pressure of the produced underground gas is measured and the gas is sampled while the gap between the bar and the wall of the hole formed by the rod is closed with the packer.

2. 发明专利

JP2001113238A PRETREATMENT METHOD FOR MAKING EXISTING DISPOSAL FIELD SOUND 失效
公开(公告)号：JP2001113238A
公开(公告)日：2001-04-24
申请号：JP29254499
申请日：1999-10-14
申请人： TAISEI CORP
发明人： KODERA HIDENORI , AMANO SHIRO , OSHIKATA TOSHIRO , TOMIOKA EIKICHI , USUI NAOTO
IPC分类号： B09B1/00
摘要： PROBLEM TO BE SOLVED: To provide a pretreatment method capable of easily making an existing field sound. SOLUTION: A perforated pipe 3 is laid under waste 2 reclaimed on an existing disposal field. Moisture in the waste 2 is collected through the perforated pipe 3, and then discharged by a pump 7. The surface of the waste is covered with a sheet 10, and a gas is fed into the waste through the perforated pipe 3.

3. 发明专利

JP2000053941A THICKENING AGENT FOR BENTONITE MUD WATER 失效
公开(公告)号：JP2000053941A
公开(公告)日：2000-02-22
申请号：JP22059798
申请日：1998-08-04
申请人： TAISEI CORP , RES INST INNOVATIVE TECH EARTH , MARINE BIOTECH INST CO LTD
发明人： YASU SHINJI , OSHIKATA TOSHIRO , USUI NAOTO , EBIHARA MASAAKI , IWAMOTO TAMAMI , HOSOGAYA MASAKO , KURANO NORIHIDE
IPC分类号： C12P19/04 , C09K3/00 , C12R1/89
摘要： PROBLEM TO BE SOLVED: To obtain a thickening agent for bentonite mud water useful in a construction work, exerting no underirable influence on an environment. SOLUTION: This thickening agent comprises a polysaccharide which is composed of galactose, glucose, xylose, arabinose and mannose extracted from a microalgae (Prasinococcus capsulatus) living in the sea and has an element composition ratio of 6 C 12 H 6 O and 0.77 (SO3) and 105 to 107 molecular weight or a polysaccharide which is a polysaccharide composed of glucose, fucose, uronic acid and rhamnose extracted from a blue-green algae (Cyanothece halobia) living in an environment of high salt concentration and has an element composition constituted of C, H, N, S, P and Fe and 105 to 107 molecular weight.

4. 发明专利

JP2000051810A METHOD FOR REGENERATING WASTE DISPOSAL SITE 失效
公开(公告)号：JP2000051810A
公开(公告)日：2000-02-22
申请号：JP22196398
申请日：1998-08-05
申请人： TAISEI CORP , KOMATSU MFG CO LTD
发明人： USUI NAOTO , OSHIKATA TOSHIRO , AMANO SHIRO , EBIHARA MASAAKI , YOKOYAMA TADAAKI , ARIMOTO YASUHIRO , YAMAMOTO YOSHIMI
IPC分类号： B09B1/00
摘要： PROBLEM TO BE SOLVED: To regenerate a waste disposal site to make the waste disposal site continuously usable for landfilling without causing pollution in the peripheral environments by burying selected dug out substances in the waste disposal site where pollution preventing facilities are built up. SOLUTION: Wastes buried in a waste disposal site equipped with no pollution preventing facilities are taken out and after that, pollution preventing facilities are newly installed to regenerate the waste disposal site as a safe waste disposal site available for burying wastes again. In this case, a chemical agent is mixed with the dug out wastes by a chemical agent mixing apparatus to make the wastes suitable for classification. Moreover, water-shielding gutters 52 are employed together with a water leakage detection system 53. In the burying back process, a part of wastes are previously moved to other already buried wastes and then after installation of pollution preventing facilities 5, the wastes which were sorted and treated for decreasing the volume are successively buried back in the site where the pollution preventing facilities are installed. At the time of digging out the wastes, the polluted soil under the buried wastes is also taken out and treated together with the wastes. Consequently, no new site for storing dug out wastes is required to be developed.

5. 发明专利

JPH10104104A APPARATUS FOR ELECTRICALLY INSPECTING WATER LEAKAGE IN BUILDING 失效
公开(公告)号：JPH10104104A
公开(公告)日：1998-04-24
申请号：JP27753596
申请日：1996-09-27
申请人： TAISEI CORP
发明人： EBIHARA MASAAKI , OSHIKATA TOSHIRO , USUI NAOTO
IPC分类号： G01M3/02 , G01M3/16
摘要： PROBLEM TO BE SOLVED: To easily find a water leakage site in a building by placing an external electrode in a conductive medium placed on a waterproof material of the building, applying voltage between the external electrode and an internal electrode placed on a building body and detecting skewness in a potential distribution on a surface of the waterproof material. SOLUTION: A medium 31 conducting electricity, such as water or a mat including water, is put on a waterproof material, a waterproof sheet 2 for example, on a roof 4 of a building 1, and an external electrode 12 is placed in the medium 31. On the other hand, an internal electrode 13 is placed in a body 6 of the building 1, voltage is applied between the electrodes 12, 13 by a power source 10, and current flowing between the electrodes 12, 13 is measured by an ammeter 11. If there is no breakage on the waterproof sheet 2, no current flows, while if there is breakage current flows through a broken part 30, resulting in skewness in a potential distribution generated with the broken part 30 as the center. The skewness in the potential distribution is caught by a measuring electrode 21 placed in a mesh in the vicinity of the waterproof sheet 2 to sense the broken part 30 (leakage site).

6. 发明专利

JPH1072821A CONSTRUCTION METHOD OF PERMEABLE CONTINUOUS UNDERGROUND WALL AND CAGE 失效
公开(公告)号：JPH1072821A
公开(公告)日：1998-03-17
申请号：JP24872496
申请日：1996-08-30
申请人： TAISEI CORP
发明人： OBARA SUNAO , USUI NAOTO
IPC分类号： E02D5/20
摘要： PROBLEM TO BE SOLVED: To provide the construction method of a continuous underground wall and a cage which can prevent collapse of ground while high permeability is secured by tightly adhering a strainer box and a water communicating pipe. SOLUTION: In the construction method of a permeable continuous underground wall, a strainer box and a water communicating pipe 5 are buried in a continuous underground wall to allow underground water flow to pass through. The strainer box 4 slidable in the orthogonal direction to a face of a cage 1 which is in contact with the underground water flow layer is disposed on the face, one end opening part of the water communicating pipe can be freely expanded in the orthogonal direction to an opposite to face the face in contact with the underground water flow layer of the strainer box 4 is connected to the opposite face. A sheet body 3 is disposed on the whole of both the faces of the cage 1 except for the face of the strainer box in contact with the underground water flow layer and the opening part of the water communicating pipe 5 located in the face opposite with respect to strainer box 4, the cage 1 is erected in an excavated groove 2, and concrete is placed between the sheet bodies 3.

7. 发明专利

JPH04359130A WATER LEAK POSITION DETECTING METHOD BASED ON ELECTRIC CURRENT RATIO 失效
公开(公告)号：JPH04359130A
公开(公告)日：1992-12-11
申请号：JP16078091
申请日：1991-06-06
申请人： TAISEI CORP
发明人： EBIHARA MASAAKI , USUI NAOTO , KANEKO HAKUO
IPC分类号： G01M3/16 , B09B1/00 , G01M3/04 , G01M3/40
摘要： PURPOSE:To increase the ratio between signal and noise by permitting the detection for a water leak position with high precision from a relatively small number of measurement places and permitting the similar application in the case where the fluidic substance such as water is accommodated and in the case where the nonfluidic substance such as waste is accommodated. CONSTITUTION:A plurality of inside electrodes 7 are fixation-installed inside a water shielding structure 1 equipped with a water shielding layer 2 consisting of an electric insulating article, and an outside electrode 8 is fixation-installed under the ground outside the water shielding structure 1. A plurality of inside electrodes 7 enclosing a prescribed detection range are selected from the inside electrodes 7, and the electric current which flow in each inside electrode 7 is measured by applying a voltage between the inside electrode 7 and the outside electrode 8, and a water leak position is detected form the ratio of electric current.

8. 发明专利

JPH01178843A DETECTION OF LEAKAGE OF WATER IN WATER BLOCKING STRUCTURE 失效
公开(公告)号：JPH01178843A
公开(公告)日：1989-07-17
申请号：JP75888
申请日：1988-01-07
申请人： TAISEI CORP
发明人： KANEKO HAKUO , OSHIKATA TOSHIRO , KAWAKAMI JUN , USUI NAOTO
IPC分类号： G01M3/40 , G01M3/16
摘要： PURPOSE:To calculate the presence and position of a leakage of water, by arranging measuring electrodes in water or ground and measuring potential difference while moving said electrodes in a reticulated state so as to pass a plurality of points. CONSTITUTION:Clayey low water permeable soil 3 is laid on the entire surface of a base plate 2 and a water blocking sheet 1 is laid on the upper surface of said coil 3 to be covered with cover soil 31. A drain layer 32 is formed between two water blocking sheets 1 and drain pipes 34, 35 are embedded in said drain layer 32. Next, a large number of electrodes 4 are embedded between two water blocking sheets in a reticulated state. The output cables connected to the respective electrodes 4 measure potential difference in a control chamber and potential distribution is prepared. A reference potential electrode 5 is con nected to the central part of a final disposal area. Then, a current is allowed to flow from the center of the final disposal area and potentials are measured between both potential electrodes 4, 5. A potential distribution chart is prepared on the basis of the measured values at respective points and the presence and position of a leakage of water are detected from said chart.

9. 发明专利

JPS6463835A METHOD FOR DETECTING LEAKING WATER 失效
公开(公告)号：JPS6463835A
公开(公告)日：1989-03-09
申请号：JP21921387
申请日：1987-09-03
申请人： TAISEI CORP
发明人： OSHIKATA TOSHIRO , USUI NAOTO , KANEKO HAKUO
IPC分类号： G01M3/04 , B09B1/00
摘要： PURPOSE:To locate water leakage point at an early period and to detect the position of the water leakage accurately, by arranging sensors, which can check water quality, in draining pipes, which are arranged for preventing the floating of a water barrier layer. CONSTITUTION:A dam body 3 for blocking the collapse of garbage 2 is provided on the downstream side of a final garbage disposal plant. Pipes 4 for draining spring water are embedded beneath a water barrier layer 1 so as to cover the almost entire area of the water barrier layer 1 in a branch pattern. Sensors 6, which can measure, e.g., electric conductivity, pH, various ion concentrations and the like, are arranged in the pipes 4. Water quality examination is performed by using said sensors 6. Then, presence or absence of water leakage due to the breakdown of the water barrier layer 1 can be readily judged based on whether contaminated material is mixed in flowing water or not. The broken point of the water barrier layer 1 can be estimated by the position where the sensor 6 is installed.

10. 发明专利

JP2004358297A Water-barrier layer and its construction method 审中-公开
公开(公告)号：JP2004358297A
公开(公告)日：2004-12-24
申请号：JP2003156858
申请日：2003-06-02
申请人： Raito Kogyo Co Ltd , Taisei Corp , ライト工業株式会社 , 大成建設株式会社
发明人： USUI NAOTO , HIGUCHI YUICHI , MORI YUJI , FUJIWARA NARIFUMI , MASUBUCHI ATSUSHI , ARIGA WATARU , KONOMA MASAO
IPC分类号： E02B7/02 , B09B1/00
摘要： PROBLEM TO BE SOLVED: To provide a water-barrier layer which can effectively prevent drying shrinkage immediately after application and a method for constructing the water-barrier layer.
SOLUTION: In the method, in the tip part of a hose for spraying bentonite-mixed earth in which sand 3 and bentonite 4 are mixed, an asphalt emulsion 5 is added into the bentonite-mixed earth, the mixture is sprayed on the ground to construct the water-barrier layer 11, and mastic 51 containing the asphalt emulsion 5 as a main component is sprayed on the surface of the water-barrier layer 11 to construct a protective layer 12.
COPYRIGHT: (C)2005,JPO&NCIPI

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