... and dangerous mountain route in Vietnam using the new Austrian tunnelling method (NATM) - where the first time the twin tunnel was constructed in Viet Nam by drilling and blasting. The special issue in construction is the influence of the safety distance and blasting schemes to each tunnel. The blasting...

... weathering. When cutting hillsides and mountains to construct highways at locations where this type of layered soft rock exists, a new form of slope instability often occurs, which is plane failure in the weak zone or layered surface of the rock mass. In many cases, when surveying and designing...

.... Introduction During the large-scale construction of tunnels in China, accidents occur frequently, which causing serious economic losses and casualties, and among that, collapse is the most common accident in tunnel construction. According to the statistics from 2001 to 2016, collapses account for 56 percent...

... Reservoir Characterization micro-tunnel boring machine diameter underground space ground condition Matsui pipe-roofing technology rail transportation Shimada pipe shaft ground transportation isrm international symposium asian rock mechanics symposium 29 construction MTBM...

... construction. According to the achievements of the characterization of the URL site, a preliminary design of the URL with a maximum depth of 560 m is proposed. 1. Introduction Safe disposal of high-level radioactive waste (HLW) is a challenging task for the sustainable development of nuclear energy...

... Abstract In the construction of artificial slopes in landslide areas, soft-ground areas, and urban areas, it is important to place multiple surface and underground sensors in response to geology and displacement characteristics of the area and to identify the changes in the area over time...

... ground transportation asian rock mechanics symposium 29 configuration rail transportation isrm international symposium shaft base tunnel main tunnel tube emergency station construction tunnel site installation cavern final configuration temporary cavern installation...

... Abstract The glass solidified body reprocessed by the high level nuclear waste disposal in the process of nuclear fuel recycle was the final design condition to construct the underground disposal tunnel under the over 300m depth in Japan. The design methodology and construction technique...

.... For the grouting design and construction a step-wise approach based on the observational method including prediction, observation and action is advantageous considering the uncertainties related to hydrogeological conditions and environmental impact. This paper aims at presenting theoretical development using...

... and buildings are suggested. Since no blasting codes and guidelines are currently available in Singapore, the shared data could serve as reference for future projects. 1. Introduction Thomson-East Coast Line (TEL) (Fig. 1), as 6 th MRT line in Singapore, is currently under construction. TEL is 43km long...

... Abstract Dewatering of groundwater resources induced by leakage into underground constructions can cause land subsidence, damage to constructions and their foundations and disturbances of groundwater dependent ecosystems. To reduce the environmental impacts, safety measures, e.g. sealing...

... of country as well as helping develop international connectivity. This highway was constructed in assistance of Peoples Republic of China. Previously this was single lane highway. Recently, it has been extended in double lane since vehicle density and inter-road connectivity have been rigorously increased...

... international symposium specimen conductivity construction Mechanical Properties of Rocks of the Jurong Series L.J. Endicotta*, Zhou Yingxinb, Ong Huei Luenc and Teo Tiong Yongc a AECOM Asia Co. Ltd, Hong Kong SAR b Nanyang Technological University, Singapore c JTC Corporation, Singapore * John.Endicott...

... underground area for the construction of the cavern to house the detector spans several hundred meters both horizontally and vertically. It was considered that a 3D seismic survey using existing underground galleries is the most suitable method to investigate and identify the location for the construction...

...Case Study of Cutter Soil Mixing (CSM) Method on Hard Soil Conditions Seiya Sakumaa*, Hideki Shimadaa and Takashi Sasaokaa a Kyushu University, Fukuoka, Japan *sakuma@aoyamakiko.co.jp Abstract A vertical cut off wall for water barrier was constructed at the final landfill disposal site in Oita...

... Abstract Sequential excavation method (SEM) is commonly used for the underground rock cavern construction. One of the major focuses in the SEM process is the selection of the excavation sequence parameters including the subdivision of cavern cross-section and the round length. In this paper...

... Abstract This paper presents construction method and monitoring program for the stability for the existing Ekeberg tunnels in connection with the construction of the Follobanen tunnel - a new high-speed railway tunnel. When crossing the Ekeberg tunnels, the Follobanen tunnels are just few...

... and economical tunnel construction the residual risk needs to be managed by appropriate monitoring and a safety management system. The paper addresses requirements for the geotechnical safety management, as well as state-of the-art monitoring and data evaluation techniques in the context of the observational...

... Abstract There is a worldwide increase in tunnel excavation especially for infrastructure development which aims to improve the amenity of urban life. When construction of these tunnels is near urban dwellings and/or rockmass conditions dictate, mechanised tunnelling methods are often favoured...

... railway between Beijing and Zhangjiakou in China that is a very famous project all around the world is now under construction. Badaling station is at the middle of this railway line and is designed as an underground station. The transition zone between the running tunnel to Zhangjiakou direction...