JPS629436Y2 - - Google Patents

Info

Publication number
JPS629436Y2
JPS629436Y2 JP1981160327U JP16032781U JPS629436Y2 JP S629436 Y2 JPS629436 Y2 JP S629436Y2 JP 1981160327 U JP1981160327 U JP 1981160327U JP 16032781 U JP16032781 U JP 16032781U JP S629436 Y2 JPS629436 Y2 JP S629436Y2
Authority
JP
Japan
Prior art keywords
hole
rear end
spring
soil
connecting member
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
JP1981160327U
Other languages
English (en)
Japanese (ja)
Other versions
JPS5890292U (ja
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 filed Critical
Priority to JP16032781U priority Critical patent/JPS5890292U/ja
Publication of JPS5890292U publication Critical patent/JPS5890292U/ja
Application granted granted Critical
Publication of JPS629436Y2 publication Critical patent/JPS629436Y2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Earth Drilling (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
JP16032781U 1981-10-29 1981-10-29 水平長距離削進工法における掘削ヘツド Granted JPS5890292U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP16032781U JPS5890292U (ja) 1981-10-29 1981-10-29 水平長距離削進工法における掘削ヘツド

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP16032781U JPS5890292U (ja) 1981-10-29 1981-10-29 水平長距離削進工法における掘削ヘツド

Publications (2)

Publication Number Publication Date
JPS5890292U JPS5890292U (ja) 1983-06-18
JPS629436Y2 true JPS629436Y2 (enrdf_load_html_response) 1987-03-04

Family

ID=29952741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP16032781U Granted JPS5890292U (ja) 1981-10-29 1981-10-29 水平長距離削進工法における掘削ヘツド

Country Status (1)

Country Link
JP (1) JPS5890292U (enrdf_load_html_response)

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5324129U (enrdf_load_html_response) * 1976-08-09 1978-03-01
JPS569038Y2 (enrdf_load_html_response) * 1977-07-06 1981-02-27
JPS54138409U (enrdf_load_html_response) * 1978-03-20 1979-09-26

Also Published As

Publication number Publication date
JPS5890292U (ja) 1983-06-18

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