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.)
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by IndividualfiledCriticalIndividual
Priority to JP3813876ApriorityCriticalpatent/JPS52121927A/en
Publication of JPS52121927ApublicationCriticalpatent/JPS52121927A/en
Publication of JPS5710276B2publicationCriticalpatent/JPS5710276B2/ja
Bulkheads Adapted To Foundation Construction
(AREA)
Excavating Of Shafts Or Tunnels
(AREA)
JP3813876A1976-04-071976-04-07Excavation method of underground structure that obliquely cross with upper traffic route and its device
GrantedJPS52121927A
(en)