절리암반내 터널의 안정성 평가를 위한 개별요소 모델링에대한 고찰
Some Considerations on the Distinct Element Modelling for the Stabillity Analysis of a Tunnel in a Join Rock Mass
(사)한국터널지하공간학회 / (사)한국터널지하공간학회, (P)2233-8292; (E)2287-4747
2001, v.3 no.2, pp.3-12
장석부
(㈜유신코퍼레이션)
허도학
(㈜유신코퍼레이션)
장석부,
&
허도학.
(2001). 절리암반내 터널의 안정성 평가를 위한 개별요소 모델링에대한 고찰. (사)한국터널지하공간학회, 3(2), 3-12.
Abstract
This paper presents the proposed methods of DE(distinct element ) modelling to estimate the stability of tunnels injointed rock masses. First, the criterion to select the joint set(s) contributed to the discontinuous behaviour in a tunnelsection is proposed. Selected joint set(s) is(are) considered others to modify the elastic properties of rock blocks. The co mplex DE model with the average and the deviation of jointorientation and joint length for each joint set was compared to the simple model with only the average of joint orientationlt, the latter is suitable to the purpose of tunnel designbecause it can show the consistent behaviour of a jointed rock mass such as the locally discontinuous failure and theglobal anisotropic behaviour.
- keywords
-
ion,
Tunnel direction,
Apparent dip,
Jointlength,
Rock block,
Tunnel stability analysis,
Discontinuous be haviour Some Considerations on the Distinct Element Modelling for the Stability Analysis of a Tunnel in a Jointed Rock Mass44Vol.3,
No.21.,
ion,
Tunnel direction,
Apparent dip,
Jointlength,
Rock block,
Tunnel stability analysis,
Discontinuous be haviour Some Considerations on the Distinct Element Modelling for the Stability Analysis of a Tunnel in a Jointed Rock Mass44Vol.3,
No.21.