JPS6342076B2 - - Google Patents

Info

Publication number
JPS6342076B2
JPS6342076B2 JP27449484A JP27449484A JPS6342076B2 JP S6342076 B2 JPS6342076 B2 JP S6342076B2 JP 27449484 A JP27449484 A JP 27449484A JP 27449484 A JP27449484 A JP 27449484A JP S6342076 B2 JPS6342076 B2 JP S6342076B2
Authority
JP
Japan
Prior art keywords
expansion
tunnel
existing tunnel
area
excavation
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
JP27449484A
Other languages
English (en)
Japanese (ja)
Other versions
JPS61155591A (ja
Inventor
Yoshuki Takahashi
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.)
Mitsui Construction Co Ltd
Kajima Corp
Original Assignee
Mitsui Construction Co Ltd
Kajima Corp
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 Mitsui Construction Co Ltd, Kajima Corp filed Critical Mitsui Construction Co Ltd
Priority to JP27449484A priority Critical patent/JPS61155591A/ja
Publication of JPS61155591A publication Critical patent/JPS61155591A/ja
Publication of JPS6342076B2 publication Critical patent/JPS6342076B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Excavating Of Shafts Or Tunnels (AREA)
JP27449484A 1984-12-28 1984-12-28 拡大トンネル掘削工法 Granted JPS61155591A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP27449484A JPS61155591A (ja) 1984-12-28 1984-12-28 拡大トンネル掘削工法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27449484A JPS61155591A (ja) 1984-12-28 1984-12-28 拡大トンネル掘削工法

Publications (2)

Publication Number Publication Date
JPS61155591A JPS61155591A (ja) 1986-07-15
JPS6342076B2 true JPS6342076B2 (en:Method) 1988-08-19

Family

ID=17542464

Family Applications (1)

Application Number Title Priority Date Filing Date
JP27449484A Granted JPS61155591A (ja) 1984-12-28 1984-12-28 拡大トンネル掘削工法

Country Status (1)

Country Link
JP (1) JPS61155591A (en:Method)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115012954B (zh) * 2022-06-21 2025-05-27 中交一公局第一工程有限公司 一种对既有隧道结构进行拆除及原位扩挖的方法

Also Published As

Publication number Publication date
JPS61155591A (ja) 1986-07-15

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees