JPH0119101B2 - - Google Patents

Info

Publication number
JPH0119101B2
JPH0119101B2 JP56116643A JP11664381A JPH0119101B2 JP H0119101 B2 JPH0119101 B2 JP H0119101B2 JP 56116643 A JP56116643 A JP 56116643A JP 11664381 A JP11664381 A JP 11664381A JP H0119101 B2 JPH0119101 B2 JP H0119101B2
Authority
JP
Japan
Prior art keywords
drill
signal
circuit
period
detects
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
JP56116643A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5818165A (ja
Inventor
Izumi Takashima
Takahito Kameoka
Kenichiro Takahashi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujikura Cable Works Ltd
Original Assignee
Fujikura Cable Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujikura Cable Works Ltd filed Critical Fujikura Cable Works Ltd
Priority to JP11664381A priority Critical patent/JPS5818165A/ja
Publication of JPS5818165A publication Critical patent/JPS5818165A/ja
Publication of JPH0119101B2 publication Critical patent/JPH0119101B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/46—Wood

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Wood Science & Technology (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Earth Drilling (AREA)
JP11664381A 1981-07-24 1981-07-24 木柱腐朽試験器 Granted JPS5818165A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11664381A JPS5818165A (ja) 1981-07-24 1981-07-24 木柱腐朽試験器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11664381A JPS5818165A (ja) 1981-07-24 1981-07-24 木柱腐朽試験器

Publications (2)

Publication Number Publication Date
JPS5818165A JPS5818165A (ja) 1983-02-02
JPH0119101B2 true JPH0119101B2 (enrdf_load_stackoverflow) 1989-04-10

Family

ID=14692282

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11664381A Granted JPS5818165A (ja) 1981-07-24 1981-07-24 木柱腐朽試験器

Country Status (1)

Country Link
JP (1) JPS5818165A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3501841C2 (de) * 1985-01-22 1994-04-14 Kamm Willibald F G Dipl Ing Verfahren und Vorrichtung zur Feststellung des inneren Zustandes von Bäumen oder Holzbauteilen
DE19617307B4 (de) * 1996-04-30 2004-07-08 Wenzel, Jürgen-Michael, Dr.-Ing. Holzkernbohrer und Verfahren zur Prüfung des inneren Zustandes von Holzwerkstoffen und Bäumen
ATE556309T1 (de) * 2007-08-20 2012-05-15 Bea Electrics Energietechnik Gmbh Verfahren zur untersuchung und beurteilung der standfestigkeit von holzmasten

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS579736Y2 (enrdf_load_stackoverflow) * 1976-11-19 1982-02-24

Also Published As

Publication number Publication date
JPS5818165A (ja) 1983-02-02

Similar Documents

Publication Publication Date Title
US4697650A (en) Method for estimating formation characteristics of the exposed bottomhole formation
CA2130460A1 (en) Determination of drill bit rate of penetration from surface measurements
NO20035561L (no) Bruk av et aksial-akselerometer til nedihulls estimering av oyeblikkelig borehastighet, for kabel- og LWD-anvendelser
CN106837324B (zh) 岩石岩性名称和强度的快速确定方法及钻孔数据采集系统
JPH045089B2 (enrdf_load_stackoverflow)
JPH0119101B2 (enrdf_load_stackoverflow)
JPH0621446B2 (ja) 地盤調査方法
JP2001082905A (ja) 空洞深さ計測方法およびそれに用いる削孔装置
JPH0119100B2 (enrdf_load_stackoverflow)
CA1061597A (en) Method and device for pore pressure sounding
JP3830395B2 (ja) 固い地盤に打ち込まれる杭を形成するための方法およびマシン
JP2014218824A (ja) 地盤の評価方法
JPS63151709A (ja) 地盤土性の検出方法
JP2711927B2 (ja) 回転削孔ビット圧可変式地盤強度測定方法
JP4091819B2 (ja) 貫入試験機および換算ｎ値の自動算出方法
JP2555269B2 (ja) 貫入試験装置
CN219015936U (zh) 桩基检测用锤
JPH039249B2 (enrdf_load_stackoverflow)
JP2755545B2 (ja) 土質測定装置
JPH0788746B2 (ja) 地盤穿孔による支持層の検出方法
JPS604326B2 (ja) 杭支持力判定装置
JPH08210075A (ja) 地盤の削孔データを用いた地層の評価方法
CA2157101A1 (en) Logging while drilling method and apparatus for measuring formation characteristics as a function of angular position within a borehole
SU413263A1 (enrdf_load_stackoverflow)
SU1569081A1 (ru) Способ определени длины участка касани ленточками концевого инструмента обрабатываемой поверхности отверсти