【摘 要】
：
Severe damages have occurred to underground structures in recent earthquakes.Previous emphasis is mainly given to the seismic performance of circular tunnels under no-slip conditions, however, for mos
【机 构】
：
Department of Construction Engineering,East China Institute of Technology,Nanchang 330013
【出 处】
：
第八届全国青年岩土力学与工程会议暨青年华人岩土工程论坛
论文部分内容阅读
Severe damages have occurred to underground structures in recent earthquakes.Previous emphasis is mainly given to the seismic performance of circular tunnels under no-slip conditions, however, for most tunnels, the condition at the interface is between full-slip (no shear stress transmission) and no-slip (no relative shear displacement).It is suggested to in vestigate both cases when computing the forces and deformations in the lining, and the more critical one should be considered in design.This paper focuses on the seismic behavior of circular tunnels, of which the ovaling deformation is of interest, and dif ferent closed-form solutions for seismic analysis of circular tunnels are presented, and then numerical studies have been performed to validate the available analytical solutions.
其他文献
This work aims to implement expert and collaborative group recommendation services through an analysis of expertise and network relations NTIS.First of all, expertise database has been constructed by
In this work, we analyzed only the patients of the NSTEMI (non ST-segment elevation myocardial infarction) who arrived at the hospital within 12 h after symptoms started.Using NSTEMI follow-up data wi
Soil-bentonite (SB) vertical slurry cutoff wall is a useful treatment for urban industrial contaminated sites.Due to the clay-heavy metal interaction, significant changes would occur in the engineerin
Pullout resistance of a soil nail is a critical parameter in design and analysis for geotechnical engineers.Due to the complexity of field conditions, the pullout behaviour of cement grouted soil nail
During CO2 injection in deep saline aquifers, salt precipitation happens around the injection well because of capillary driven back flow, inducing permeability impairment.The permeability impairment a
In early morning of Aug 8th, 2010, the rain-triggered tremendous debris flows broke out simultaneously at the Sanyanyu ravine and Luojiayu ravine, which locate in the north part of Zhouqu County town.
Bridge scour is the biggest cause of bridge failures.Erosion of soil around the bridge foundation could lead to problems from instability of substructure to complete bridge failures.An effective scour
The state of roof collapse in tunnels is actually three-dimensional, so constructing a three-dimensional failure collapse mechanism is crucial so as to reflect the realistic collapsing scopes more rea
A simplified approach is presented for nonlinear analysis of vertically loaded pile raft.The raft as well as the subsoil under the raft is divided into a number of approximate square discrete elements