...Assessment of Blasting Vibration Velocity of Large-span Underground Railway Station Based on Micro-seismic Monitoring Qian Fanga*, Ao Lia, Yue Zhonga, Yan Liua and Dingli Zhanga a Beijing Jiaotong University, Beijing 100044, China * qfang@bjtu.edu.cn Abstract Blasting operation is one of the most...

.... The current study accounts for the differing expectations of these shotcrete support systems depending on the order of system component installation, and how deformation-based monitoring of these shotcrete systems can be used to assess performance. metals & mining Martin shotcrete displacement...

... Abstract Piezo based transducers are considered smart sensors in contemporary structural health monitoring (SHM) technologies due to their dual functionality of both actuation and sensing. This function can be used to extract structural impedance in the form of electro-mechanical impedance...

... without distortion. Despite some shortcomings, 3D laser scanning was selected, although there is still no suitable device for dusty and humid mining environment. During the pillar development phase, comprehensive geotechnical monitoring was undertaken including the frequent scanning of pillar movement...

... Abstract Microseismicity is an generated elastic wave when a crack is generated due to deformation or damage of a material, and it tends to increase sharply before macro-failure of the material. It can be used to monitor the safety of the rock mass structure such as mine and tunnel etc...

... Abstract With the increasing of mining activities in China, a series of hazards such as landslides, rockbursts, large deformations occur frequently. At present, the challenges for these hazards consist in finding appropriate countermeasures. They can be classified in three types: monitoring...

... Abstract The contribution deals with the development of a new monitoring device for the measurement of the whole stress tensor in rock masses. The stress field is one of the principal factors which in a decisive way together with mechanical and deformation characteristics of rocks affect...

... Abstract The underground powerhouse of Houziyan hydropower station is a typical deep-buried powerhouse, with the depth of 280m~510m horizontally and 400 m~660m vertically. The ground stress is high and the geological conditions are very complicated. In order to monitor and analyze...

... Abstract Pilot sites storing small amounts of carbon dioxide in a variety of geological settings are an important component for the industrial and governmental stakeholders in order to gain operational experience in storage and in the monitoring at various scales. An important aspect is also...

... Abstract Four case studies of GPS monitoring are presented for various purposes. World heritage of Borobudur in Indonesia is for conservation and to study structural stability. Two cases are observation method applied for excavation at Toyonaka and at Temma in Osaka. Another case...

... power plants will require injection at a much larger scale. For such large-scale injections, a staged, learn-as-you-go approach is recommended, involving a gradual increase of injection rates combined with continuous monitoring of geomechanical changes, as well as siting beneath a multiple layered...

... ABSTRACT Based on a series of laboratory tests and in situ monitoring and tests at deep tunnels excavated by TBM or D&B method, mechanism of evolution process of different types of rockburst, including strain burst, strain-structure slip rockburst, immediate rockburst and time delayed...

... there is no system in place for continuous monitoring of roof health status of an underground Bord & Pillar coal mine to forecast roof fall events. This paper addresses a multi-hop wireless sensor network (MWSN) based solution for real time monitoring of roof health status in an underground Bord & Pillar...

... gravity dam which is being continuously loaded and has caused some closure of the arch with deformation and cracking developing on the downstream side. The discussion is on advanced laboratory testing of rock samples taken at depth along the basal sliding surface of the landslide, slope monitoring...

... monitoring shotcrete slope resistivity decrepit slope resistivity distribution 1 ISRM International Symposium 2010 and 6th Asian Rock Mechanics Symposium - Advances in Rock Engineering, 23-27 October, 2010, New Delhi, India MONITORING OF GROUND CONDITIONS INSIDE DECREPIT SLOPES BY COMPOUND SURVEY...

... Reservoir Characterization accuracy stability Symposium Engineering measurement Point structural geology displacement precise rock deformation Shimizu rainfall tropospheric delay monitoring global positioning system partial pressure international symposium vertical component...

... Reservoir Characterization displacement artificial ground freezing metals & mining McArthur River Operation structural geology Design Procedure monitoring construction excavation Athabasca Basin weak rock mass Engineering water pressure mechanical cutting 1 ISRM...

... We monitored AE events accompanied with a failure of Berea sandstone specimen induced by pore pressure increase in a tri-axial test. After the test, several located AE events were compared with X-ray CT images obtained on the fractured specimen. The comparison elucidated that most of the sources...

... Artificial Intelligence neural network neural network model metals & mining underground structure peak particle velocity regression analysis predicator equation monitoring close proximity pillar JHA PPV vibration predictor equation lajkura ocm machine learning Upstream Oil...

... ABSTRACT It has been widely reported that fault zones are the most influencing factor of tunnel collapse. This study reviewed the applicability of the 3-D absolute displacement measurement of a tunnel by using digital vision monitoring. Also analyzed is the behavior of a tunnel displacement...