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81. 发明专利

JP2000180561A GROUND INVESTIGATION METHOD 失效
公开(公告)号：JP2000180561A
公开(公告)日：2000-06-30
申请号：JP35964398
申请日：1998-12-17
申请人： OHBAYASHI CORP
发明人： TORIIHARA MAKOTO
IPC分类号： E02D1/00 , G01N3/40 , G01V1/143 , G01V1/28
摘要： PROBLEM TO BE SOLVED: To provide a ground investigation method for accurately, easily, and rapidly investigating stratum sections, ground strength in each stratum, and the like even under the ground at a depth being relatively shallower from the earth's surface and in the ground with a complex stratum structure. SOLUTION: A shell 10 with at least either one being selected from an accelerator, a load meter, and a pore water pressure meter in a tip part 12 is penetrated into the ground whose base is to be investigated, the penetration resistance of the shell 10 is measured at each stratum L for composing the ground, at the same time an elastic wave E is generated from the shell tip part 12 when the shell is penetrated, and either one of a direct wave D and a reflection wave R being reflected on each stratum boundary surface C out of the elastic wave E is measured by a vibration receiver 3, thus estimating the condition of stratum such as the ground strength and stratum section of each stratum L.

83. 发明专利

JPH0769430B2 失效
公开(公告)号：JPH0769430B2
公开(公告)日：1995-07-31
申请号：JP25939387
申请日：1987-10-14
IPC分类号： E02D1/00 , C07C5/11 , G01N3/00 , G01N3/30 , G01N33/24 , G01V1/143 , G01V1/16 , G01V1/40

86. 发明专利

JPH01500055A 失效
公开(公告)号：JPH01500055A
公开(公告)日：1989-01-12
申请号：JP50210987
申请日：1987-03-18
IPC分类号： G01V1/143 , E21B23/01 , G01V1/06 , G01V1/155 , G01V1/38 , G01V1/40 , G01V11/00
摘要： The present invention is a downhole seismic source capable of generating seismic forces in excess of 1000 newtons. The source produces seismic waves for seismic applications, particularly cross borehole measurements and vertical seismic profiling. Coupled with motion sensing devices, the present invention also performs as a seismic logging tool. The source is comprised of an outer housing, a means for clamping the source securely to the wellbore, and a linear electromagnetic actuator which utilizes permanent magnetic material having remanent magnetic field exceeding about 0.9 T such as rare earth permanent magnetics. The source has a diameter of about 12.5 cm to fit within a typical wellbore and the acuator has a length of about 1 meter.

87. 发明专利

JPS6345073B2 失效
公开(公告)号：JPS6345073B2
公开(公告)日：1988-09-07
申请号：JP12133677
申请日：1977-10-07
申请人： HYDROACOUSTIC INC
发明人： JON UINTON BUUJUKOSU
IPC分类号： G01H1/00 , G01V1/02 , G01V1/04 , G01V1/133 , G01V1/143 , G01V1/147 , G01V1/157

89. 发明专利

JPS6259270B2 失效
公开(公告)号：JPS6259270B2
公开(公告)日：1987-12-10
申请号：JP8550079
申请日：1979-07-05
申请人： ANSUCHI* FURANSE DEYU PETOROORU
发明人： PIEERU KUROODO REYOTSUTO , ANDORE JAMU
IPC分类号： G01V1/143 , B60P3/00 , B60S9/02 , G01V1/02 , G01V1/053 , G01V1/09 , G01V1/147 , G01V1/157

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