JPH0469717B2 - - Google Patents

Info

Publication number
JPH0469717B2
JPH0469717B2 JP23493687A JP23493687A JPH0469717B2 JP H0469717 B2 JPH0469717 B2 JP H0469717B2 JP 23493687 A JP23493687 A JP 23493687A JP 23493687 A JP23493687 A JP 23493687A JP H0469717 B2 JPH0469717 B2 JP H0469717B2
Authority
JP
Japan
Prior art keywords
air
suction
pipe
cover
sand
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
JP23493687A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6480695A (en
Inventor
Masahiro Hirai
Koji Matsuzaki
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.)
KANPAI KK
Original Assignee
KANPAI KK
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 KANPAI KK filed Critical KANPAI KK
Priority to JP23493687A priority Critical patent/JPS6480695A/ja
Publication of JPS6480695A publication Critical patent/JPS6480695A/ja
Publication of JPH0469717B2 publication Critical patent/JPH0469717B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
JP23493687A 1987-09-21 1987-09-21 Method of air jet excavating and sucking construction Granted JPS6480695A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23493687A JPS6480695A (en) 1987-09-21 1987-09-21 Method of air jet excavating and sucking construction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23493687A JPS6480695A (en) 1987-09-21 1987-09-21 Method of air jet excavating and sucking construction

Publications (2)

Publication Number Publication Date
JPS6480695A JPS6480695A (en) 1989-03-27
JPH0469717B2 true JPH0469717B2 (enExample) 1992-11-06

Family

ID=16978593

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23493687A Granted JPS6480695A (en) 1987-09-21 1987-09-21 Method of air jet excavating and sucking construction

Country Status (1)

Country Link
JP (1) JPS6480695A (enExample)

Also Published As

Publication number Publication date
JPS6480695A (en) 1989-03-27

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