Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SELF-BORING PRESSURE METER TEST METHOD BY WIRE LINE
Document Type and Number:
Japanese Patent JP3850543
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To shorten time required for testing a self-boring pressure meter without lowering work efficiency even if the depth used for a pressure meter test is large and to control the disturbance of the wall of a boring hole to increase degree of accuracy of a test.
SOLUTION: A pressure meter is equipped with an excavation device 2 for excavating an investigation objective ground 10 and a driving device 3 for driving the excavation device 2 to form as a self-boring type. The self-boring pressure meter 1 is hung down with a wire line 9, it is inserted inside a boring hole 11 excavated into the investigation objective ground 10 in advance, the bottom of the hole is further excavated after it is lowered down to the bottom of the hole, and a pressure meter test is conducted in a state to finish excavation in the excavated boring hole to obtain data.


Inventors:
River Saki Ryo
Application Number:
JP3936798A
Publication Date:
November 29, 2006
Filing Date:
February 20, 1998
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
CENTRAL RESEARCH INSTITUTE OF ELECTRIC POWER INDUSTRY
International Classes:
E02D1/02; G01N33/24; (IPC1-7): E02D1/02; G01N33/24
Domestic Patent References:
JP58057572A
Attorney, Agent or Firm:
Kazumi Murase