著者

池田 和彦 田中 敏夫

出版者

Japan Society of Engineering Geology

雑誌

応用地質 (ISSN:02867737)

巻号頁・発行日

vol.8, no.1, pp.9-29, 1967-03-01 (Released:2010-06-04)

---

The geology in this area consists of such soft rocks as mudstone, sadstone, tuff and many crashed zone that landslides and collapses of a precipice has happened so freguently. For the purpose of the prevention of these disasters we surveyed thoroughly the geology and selected the root of the double line.This new line has resulted in boring of six tunnels (l=2660m, 1570m, 11355m, 3596m, 1055m and 3025m in length). It is anticipated that these tunnels pass through the swell ing rocks and strata with confined water and gar. sThe writer mentions the correlation about the geology as above mentioned with engineering works.

著者

吉川 恵也 田中 敏夫 三沢 清扶

出版者

Japan Society of Engineering Geology

雑誌

応用地質 (ISSN:02867737)

巻号頁・発行日

vol.9, no.2, pp.66-80, 1968-06-10 (Released:2010-06-04)

参考文献数

3

---

We used tentatively a Rock Tunneling Machine on the bottom drift of Konoura Tunnel in Japanese National Railways (double track railway tunnel).The purposes of the test were the evaluation of suitability of the machine against geological condition and investigation of economical advantage of machine tunneling method.Rocks in the tunnel are mudstone and tuffacious mudstone which belong to Miocene, Tertiary, and then those compressive strength are 80 to 130kg/cm2 and those seismic speeds at the site are 1.8 to 2.2km/sec.The machine (bore diameter 2.3m) was Robbins type and was being built in the Komatsu Mfg. Co. it was successful on the test excavation. The total length of the excavating by the machine were 987.6m and rates of advance were 24.6m/day at maximum and approximately 350 m/month in average.This paper describes that:(1) Relation between cutter type and rock properties.(2) Relation between advance of excavation and rock properties.(3) Deformation of ground and surface of the drift after excavation on the machine and ordinary tunneling method.

著者

田中 敏夫

出版者

千葉大学

雑誌

地理学研究報告 (ISSN:09158774)

巻号頁・発行日

vol.4, pp.52-53, 1993-03