Karst is a common geological condition in engineering construction. In order to study the influence of karst cave and boundary condition on the analysis of free field ground motion in karst area, viscoelastic artificial boundary was studied in free field ground motion analysis of karst region, a three-dimensional finite element model whose dimension is 1000 m × 1000 m × 500 m was set up, ch…
As an important part of critical infrastructure, shield tunnel is widely used in urban area of China recent years. The safety of shield tunnel during construction and operation has drawn more and more attention. In the operational period, real time deformation monitoring is an effective way to help us to reveal the long-term deformation mechanism and control the lifetime safety of shield tunn…
Second International Conference On Road & Airfield Pavement Technology, Volume 1
Tunnelling underneath the existing tunnels are very common these days. It is obvious that the under-crossing tunnelling will affect and even damage the existing tunnels. An analytical method is proposed in this paper to better understand the effects of the under-crossing tunnelling on the existing tunnel. The existing tunnel is modeled as a Timoshenko beam lying on a Kerr foundation. The validi…
DOT has the characteristics of special section and relatively large area of excavation face. Its propulsion will cause large formation disturbance. But too much soil disturbance usually leads to a series of environmental diseases. 3D elastoplastic FDM model was applied to analysis the dynamic construction process relying on a DOT project in Shanghai. Surface displacement field and the distrib…
In recent years, because of the controlled blasting engineering in China concentrated in the downtown area, the surrounding environment of the downtown area is complex and the underground pipeline is dense, which poses a great challenge to the controlled blasting. It is of great significance to study the impact of falling ground vibration caused by controlled blasting on the underground stati…
As a kind of Ground Source Heat Pump (GSHP), geothermal energy piles is the economic, stable, efficient, and environmentally friendly way of cooling and heating building. Though the usage of geothermal energy piles has rapidly increased in the past three decades, there is so far limited understanding of their thermo-mechanical performance, and its application is earlier than theoretical inves…
Structural Health Monitoring of bridges has aroused the interest of many researchers on various disciplines. Our purpose in this paper is to make an overview on SHM of bridges from two different research areas: Civil and Communication Engineering. For the former part, we provide some insights into the objectives and the ways SHM of bridges is made. For the Communication Engineering side, we …