JP2006241891A5 - - Google Patents

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Publication number
JP2006241891A5
JP2006241891A5 JP2005060794A JP2005060794A JP2006241891A5 JP 2006241891 A5 JP2006241891 A5 JP 2006241891A5 JP 2005060794 A JP2005060794 A JP 2005060794A JP 2005060794 A JP2005060794 A JP 2005060794A JP 2006241891 A5 JP2006241891 A5 JP 2006241891A5
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JP
Japan
Prior art keywords
casing pipe
buried
cutter
cut
casing
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Application number
JP2005060794A
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Japanese (ja)
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JP4389813B2 (en
JP2006241891A (en
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Priority to JP2005060794A priority Critical patent/JP4389813B2/en
Priority claimed from JP2005060794A external-priority patent/JP4389813B2/en
Publication of JP2006241891A publication Critical patent/JP2006241891A/en
Publication of JP2006241891A5 publication Critical patent/JP2006241891A5/ja
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Publication of JP4389813B2 publication Critical patent/JP4389813B2/en
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Claims (7)

垂直方向に土中に埋設したケーシング管を撤去する場合において、前記ケーシング管を管内から長手方向に複数の短冊片状に切断することにより分割して、分割片を個々に引き抜くことを特徴とする埋設ケーシング管の撤去方法。   When removing the casing pipe buried in the soil in the vertical direction, the casing pipe is divided into a plurality of strip pieces in the longitudinal direction from the inside of the pipe, and the divided pieces are individually pulled out. Removal method of buried casing pipe. 前記ケーシング管内に複数のカッタビットを備えた垂直カッタを挿入し、前記カッタビットにより前記ケーシング管を長手方向に切断することを特徴とする請求項1に記載の埋設ケーシング管の撤去方法。   The method of removing a buried casing pipe according to claim 1, wherein a vertical cutter having a plurality of cutter bits is inserted into the casing pipe, and the casing pipe is cut in the longitudinal direction by the cutter bit. 前記ケーシング管は下方から上方に向けて切断することを特徴とする請求項1又は2に記載の埋設ケーシング管の撤去方法。   The method for removing a buried casing pipe according to claim 1, wherein the casing pipe is cut from the bottom to the top. 切断後の前記分割片の引き抜きに先立ち、前記ケーシング管内に拡幅装置を挿入し、切断した前記分割片を内側から拡幅することを特徴とする請求項1又は2に記載の埋設ケーシング管の撤去方法。   3. The method for removing a buried casing pipe according to claim 1 or 2, wherein a widening device is inserted into the casing pipe prior to pulling out the divided piece after cutting, and the cut divided piece is widened from the inside. . 前記長手方向の切断に先立ち、前記ケーシング管内に水平カッタを挿入し、該水平カッタにより孔底において前記ケーシング管を水平方向に切断することを特徴とする請求項1に記載の埋設ケーシング管の撤去方法。   Prior to the cutting in the longitudinal direction, a horizontal cutter is inserted into the casing pipe, and the casing pipe is cut in the horizontal direction at the bottom of the hole by the horizontal cutter. Method. 前記水平方向の切断に先立ち、前記ケーシング管内を洗浄することを特徴とする請求項5に記載の埋設ケーシング管の撤去方法。 Prior to cleavage of the horizontal direction, the removal method of embedding casing tube according to claim 5, characterized in that cleaning the casing tube. 前記分割片の引き抜き後に、前記水平方向の切断により切り離した前記ケーシング管の孔底部を引き上げ装置により引き上げることを特徴とする請求項5に記載の埋設ケーシング管の撤去方法。 6. The method for removing a buried casing pipe according to claim 5, wherein after the split pieces are pulled out, a hole bottom portion of the casing pipe separated by cutting in the horizontal direction is pulled up by a lifting device.
JP2005060794A 2005-03-04 2005-03-04 Removal method of buried casing pipe Active JP4389813B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2005060794A JP4389813B2 (en) 2005-03-04 2005-03-04 Removal method of buried casing pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005060794A JP4389813B2 (en) 2005-03-04 2005-03-04 Removal method of buried casing pipe

Publications (3)

Publication Number Publication Date
JP2006241891A JP2006241891A (en) 2006-09-14
JP2006241891A5 true JP2006241891A5 (en) 2008-03-13
JP4389813B2 JP4389813B2 (en) 2009-12-24

Family

ID=37048570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005060794A Active JP4389813B2 (en) 2005-03-04 2005-03-04 Removal method of buried casing pipe

Country Status (1)

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JP (1) JP4389813B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201403652D0 (en) * 2013-07-05 2014-04-16 Tunget Bruce A A simple axial longitudinal well surface cutting apparatus
WO2015003188A1 (en) * 2013-07-05 2015-01-08 Tunget Bruce A Apparatus and mehtod for cultivating a downhole surface
JP2017115910A (en) * 2015-12-21 2017-06-29 鹿島建設株式会社 Pipeline closing method and pipeline removal method

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