... content in the tunnel construction. In this article, we focus on the analysis of attenuation mechanism of electromagnetic wave in the moist red clay, and establish a mathematical model. By means of large amount of lab experiments, the relation of moisture content and dielectric constant of the red clay...

... and construction of surface and underground rock engineering projects in the civil engineering, mining and energy resource industries. Eleven categories of review carried out in the authors' consulting practice are identified and discussed. Some, but not all, of these types of review are similar to the technical...

... Characterization Artificial Intelligence aleatory uncertainty Upstream Oil & Gas machine learning Wellbore Design knowledge flowchart construction information memory system London tunnel Rock mechanics epistemic uncertainty application Case Example Hudson rock engineering international...

... Abstract Muzhailing railway tunnel is excavated mainly in fault zones, carbonaceous slate and sandstone using the drilling-blasting method. Geotechnical problems encountered in the tunnel during construction, such as large squeezing deformation with long duration and collapse of arch crown...

... Abstract The stability of a large underground powerhouse in the Himalayas has been evaluated. This underground powerhouse cavern constitutes a major component of a Hydro Electric Project in Bhutan. It has experienced a number of instabilities during and after construction. Approximately 5...

... that: Taishangou tunnel entrance slope is less risk in the normal conditions; but slope is higher risk in non-normal conditions, management measures must be taken to reduce risk and to strengthen monitoring, particularly to strengthen the monitoring of slope deformation in the construction process and adverse...

.... To allow for construction of safe and economical tunnels, the uncertainties have to be dealt with by observing the behaviour of the structure, and adjust construction measures to the real ground conditions and behaviours ("observational method"). After characterizing the ground, potential hazards...

... & Gas sidewall Downstream Oil & Gas stability excavation construction main cave rock quality bolt length support parameter MPa storage lpg underground storage Artificial Intelligence displacement optimization maximum displacement rock stability plastic area plastic element...

... Abstract Rock burst is one of the most serious geologic hazards, adversely affecting the safety, economy and productivity of underground engineering construction. High ground stress and its induced frequent rock bursts are major influences of tunnel instability during the survey and design...

... construction, optimized blasting parameter. The methods will ensure the excavation safety in shallow buried tunnel under unsymmetrical pressure. 1 Introduction Surrounding rock of highway tunnel entrance is unstable and mechanics complex due to the rock crushing, severe weathering and the shallow buried...

... In the field of mountain tunneling, the frequency of accidents remains a considerable level due to the collapse or water inflow at the tunneling face during construction, though many efforts have been made to ensure the stability of tunneling face. Monitoring is thought to take an important part in tunneling...

... the implementation procedures of dynamic risk assessment of rockburst during tunnel construction, which involves identifying and dividing risk region, analyzing the probability of risk, estimating the consequences of risk, determining the level of risk, evaluating and controlling the risk. Finally, one case study...

...ISRM-Sponsored International Symposium on Rock Mechanics: Rock Characterisation, Modelling and Engineering Design Methods Comparison and Analysis on Surface Settlement Caused by Multi-arch Tunnel and Neighborhood Tunnel?Construction M.L. Huang, F.Wang & W. Lu Beijng Jiaotong University, Beijing...

... risk management risk assessment tunnel construction rail transportation Engineering ground transportation collapse case information identification investigation risk and uncertainty assessment potential loss Accident tree analysis tunnel collapse procedure construction statistics...

... Reservoir Characterization calculation pipe umbrella method construction Upstream Oil & Gas ground condition unexpected change section modulus pipe umbrella system stability weak ground tunnel spile numerical calculation unsupported span failure mechanism ABSTRACT Weak...

... ABSTRACT Due to the construction excavation and heavily raining, resulted in serious creep deformation on the Mayanpo slope. Through the analysis of the deformation monitoring material, together with the in situ detail geological survey results, this paper present the deformation characters...

... optimization problem tunnel response Upstream Oil & Gas Artificial Intelligence displacement vector algorithm input parameter subsidence construction forward modeling procedure forward analysis machine learning modeling tunnel construction application probability tunnel...

... Reservoir Characterization tunnel support unconsolidated ground excavation construction estimation system appropriate tunnel support tunnel estimation system geological survey metals & mining measurement result ground condition geological condition reservoir geomechanics...

... to consider in the design of the powerhouse cavern. Owing to the scarce information obtained at the design stage and to the high values of the calculated horizontal stresses, it was decided to perform additional stress measurement tests, using small flat jacks, once construction started and excavation...

... granite or granitic gneiss as mother rock, is a ground with interest frequently seeing in the field of construction in Korea. For, a single kind of rock occupying the broadest area is granite. It is rock formed in a deep underground of the Mesozoic for the most part and is largely divided into Daebo...