JPH0336091U - - Google Patents

Info

Publication number
JPH0336091U
JPH0336091U JP9734989U JP9734989U JPH0336091U JP H0336091 U JPH0336091 U JP H0336091U JP 9734989 U JP9734989 U JP 9734989U JP 9734989 U JP9734989 U JP 9734989U JP H0336091 U JPH0336091 U JP H0336091U
Authority
JP
Japan
Prior art keywords
pipe
existing pipe
destruction
destroying
head
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.)
Pending
Application number
JP9734989U
Other languages
English (en)
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 JP9734989U priority Critical patent/JPH0336091U/ja
Publication of JPH0336091U publication Critical patent/JPH0336091U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)

Description

【図面の簡単な説明】
第1図aは本考案の一実施例を示す破壊ヘツド
の正面図、第1図b,cは同破壊ヘツドのA−A
´およびB−B´断面図、第2図は従来の既設管
の布設替え装置を用いた作業状態図、第3図は多
孔管の断面図である。 5……内部区分壁、6……多孔管、7……外周
壁、11……外周刃壁、11a,12a,12b
,12c,12d……破壊刃、12……内部刃壁
、13……破壊ヘツド、14……新管。

Claims (1)

    【実用新案登録請求の範囲】
  1. 既設管に沿つて布設替えする新管の先端に設け
    られて前記既設管を破壊しながら前記新管ととも
    に推進される破壊ヘツドであつて、推進方向前面
    に、前記既設管の内部空間を区分する内部区分壁
    および外部壁を破壊する破壊刃を設けたことを特
    徴とする破壊ヘツド。
JP9734989U 1989-08-21 1989-08-21 Pending JPH0336091U (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9734989U JPH0336091U (ja) 1989-08-21 1989-08-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9734989U JPH0336091U (ja) 1989-08-21 1989-08-21

Publications (1)

Publication Number Publication Date
JPH0336091U true JPH0336091U (ja) 1991-04-09

Family

ID=31646495

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9734989U Pending JPH0336091U (ja) 1989-08-21 1989-08-21

Country Status (1)

Country Link
JP (1) JPH0336091U (ja)

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