JPS5516170A - Penetration tester for underwater n value - Google Patents

Penetration tester for underwater n value

Info

Publication number
JPS5516170A
JPS5516170A JP8920978A JP8920978A JPS5516170A JP S5516170 A JPS5516170 A JP S5516170A JP 8920978 A JP8920978 A JP 8920978A JP 8920978 A JP8920978 A JP 8920978A JP S5516170 A JPS5516170 A JP S5516170A
Authority
JP
Japan
Prior art keywords
weight
sampler
tube
latch
chamber
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.)
Granted
Application number
JP8920978A
Other languages
Japanese (ja)
Other versions
JPS58765B2 (en
Inventor
Kenichi Ichihara
Yukinori Hirohata
Hironori Suzumi
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.)
Tone Boring Co Ltd
Original Assignee
Tone Boring Co 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 Tone Boring Co Ltd filed Critical Tone Boring Co Ltd
Priority to JP8920978A priority Critical patent/JPS58765B2/en
Publication of JPS5516170A publication Critical patent/JPS5516170A/en
Publication of JPS58765B2 publication Critical patent/JPS58765B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)

Abstract

PURPOSE: To obtain an appratus by which more accurate N value is obtained by lowering tube with built-in sampler using wire to the sea bottom, and striking the sampler into the bottom by dropping weight on it within the glass chamber at the sampler.
CONSTITUTION: Inner tube 20 which is consisted of water pressure chamber 24 and sampler container 26 is hung underwater by wire 18, while sampler 28 containing split tube 32 and weight 36 is disposed slidably within the container 26. Latch rod 38 is provided with guide 40 positioned within the pressure chamber 24 at one end and weight 36 and latch 42 at the other end. By the increased pressure at the pressure chamber 24, rod 38 is lowered and catches the weight 36 by the latch 42, then, the weight 36 is brought upward by the increase of gas pressure at the gas chamber 30, and the tube 32 is penetrated into the bottom by releasing the catch of the weight.
COPYRIGHT: (C)1980,JPO&Japio
JP8920978A 1978-07-20 1978-07-20 Underwater N value penetration tester Expired JPS58765B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8920978A JPS58765B2 (en) 1978-07-20 1978-07-20 Underwater N value penetration tester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8920978A JPS58765B2 (en) 1978-07-20 1978-07-20 Underwater N value penetration tester

Publications (2)

Publication Number Publication Date
JPS5516170A true JPS5516170A (en) 1980-02-04
JPS58765B2 JPS58765B2 (en) 1983-01-07

Family

ID=13964321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8920978A Expired JPS58765B2 (en) 1978-07-20 1978-07-20 Underwater N value penetration tester

Country Status (1)

Country Link
JP (1) JPS58765B2 (en)

Also Published As

Publication number Publication date
JPS58765B2 (en) 1983-01-07

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