Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Hisaya Yoshioka"'
Publikováno v:
Shigen-to-Sozai. 116:821-830
A shaft with an inner diameter of 6 m has been excavated by blasting in Tertiary soft sedimentary rocks and we have estimated the changes of rock properties, such as deformation modulus, permeability and fracture frequency, of the rock around the sha
Publikováno v:
Doboku Gakkai Ronbunshu. 1999:389-393
不良地山内にトンネルを掘削するときには, 掘削工法として最も基本的かつ一般的なショートベンチカット工法が用いられている. しかし, トンネル断面を早期に閉合したい場合には, 標
Publikováno v:
Journal of the Society of Materials Science, Japan. 47:489-494
When constructing large underground caverns such as hydraulic power stations and oil storages, it is important to estimate the loosened area around rock caverns caused by excavation. If the loosened area around a rock cavern is known, the most suitab
Publikováno v:
Journal of the Society of Materials Science, Japan. 44:885-890
A Large scale underground cavern, such as an underground power station, can be designed and executed rationally, if the initial stress condition of the site is known. Authors have carried out fundamental studies on the detection of initial stress usi
Publikováno v:
Engineering Geology. 35:223-228
A shaft with a diameter of 6 m and a depth of 150 m was excavated in sedimentary rocks. Anin situ study was carried out to identify the size and rock properties of the zone disturbed by the excavation and to estimate the applicability of existing met
Publikováno v:
Journal of the Society of Materials Science, Japan. 42:324-328
The main purpose of this study is to make clear the variation of strain induced by the excavation of a shaft with a diameter of 6m and a depth of 150m. Variation of strain around the shaft was measured using 8-element borehole guages embeded before e
Autor:
Chikaosa Tanimoto, Hisaya Yoshioka
Publikováno v:
Journal of the Society of Materials Science, Japan. 41:424-429
Convergence monitoring can be easily carried out during construction and provides serial information on final deformation of tunnel wall, support load, development of the inelastic zone, etc. The authors estimated the width of the inelastic zone from
Autor:
Hisaya Yoshioka, Chikaosa Tanimoto
Publikováno v:
Journal of the Society of Materials Science, Japan. 40:630-636
Convergence monitoring is a simple measurement. It can be easily carried out during construction, and provides serial information on the deformation of tunnel wall. When the ground behaves as an elastic body with no time dependency, the curve of conv
Publikováno v:
Journal of the Society of Materials Science, Japan. 39:1019-1025
When constructing large caverns such as the one used for an underground powerhouse, it is of extreme importance to assure the stability of the cavern. As one of the techniques for stability monitoring, uniaxial compression tests were performed in var
Publikováno v:
Journal of Japan Society of Civil Engineers, Ser. F1 (Tunnel Engineering). 67:I_9-I_24
押出し性地山における切羽安定対策および断面の早期閉合を行った時のトンネル挙動を解明するために,三次元数値解析を行った.併せて,押出し性地山において管理基準値に基づき閉