Sangaku tonneru no fukukō sekkeihō ni kansuru kenkyū hōkokusho
Subtitle: kaisekiteki shuhō ni yoru fukukō sekkeihō no kangaekata
By: Doboku Kenkyūjo Dōro Gijutsu Kenkyū Gurūpu Tonneru Chīmu.
Contributors: Doboku Kenkyūjo (Japan). Dōro Gijutsu Kenkyū Gurūpu. Tonneru Chīmu.
Series: Doboku Kenkyūjo shiryō -- dai 4105-gō
Publisher: Doboku Kenkyūjo
Published: 2008
Place of publication: Tsukuba-shi
Language: jpn
Number of pages: 50
Subjects: Tunnels -- Design and construction
Notes: Cover title.

Includes bibliographical references (p. 49-50).