... parameters of rock masses using bending-compression tests and transforming Even-Hoek’s deformation modulus formula. As a result, the translated formula of creep parameters between rock specimens and rock masses is acquired. Introduction During exploitation and operation of underground constructions...

..., while the pre-deformation of the low bench is larger. Finally, a new fitting formula is proposed for the normalized radial displacements occurring ahead of and behind the excavation of the tunnel for the three-step excavation method. The new formula can predict the longitudinal deformation of tunnel...

.... tunnel shield tunnel society iop publishing iop conf reservoir geomechanics geology deformation environmental science 861 geologist geological subdiscipline settlement conference evaluation coefficient convergent deformation assessment indicator convergent tunnel deformation formula...

... geologist bashijiqike formation production control society iop publishing iop conf geology production monitoring reservoir characterization differential conference uniaxial compressive strength strength breakthrough environmental science 861 poisson coefficient prediction formula 11th...

... on empirical formulas (Froehlich et al., 2016). It is often used for rapid prediction and evaluation of damage caused by dam failure. The second category is the accurate mathematical models based on the mechanism of collapse, which has developed rapidly in recent years (Kesserwani et al., 2014). It can...

... evolution. wellbore design reservoir characterization poisson artificial intelligence machine learning tensile strength coefficient society iop publishing iop conf equation modeling geology reservoir geomechanics strength young formula geologist wellbore integrity geological...

... through the improved Louis formula, and establish the stress-damage-permeability coefficient equation to consider the effect of stress and damage on the seepage field. The three-dimensional elastoplastic damage finite element analysis of rock mass structure has established a stress-damage-seepage...

... communication conference experiment formula acoustic emission diagram morphology Abstract Large amounts of oil and gas resources are stored in carbonate rocks, and fracturing is an important technology to exploit carbonate reservoirs, The communication between artificial fractures and natural...

... that this event triggered at least 441 coseismic landslides, with a total area of 1.08 km 2 , distributed in the VII-VIII intensity zone, with an area of about 2160.86 km 2 . The total volume of these landslides is estimated to be 9.4×10 6 m 3 according to the area-volume formula. The point density, area...

... formula probability Abstract Multi-source information monitoring and data fusion analysis system has high practical value for the risk management of tunnel structure, especially in complex ground. The analysis of structure health will be getting more comprehensive and real-time with multisource...

... frequency can reflect the rock's stability. The article analyzed the motion characteristics of cantilevered rocks and gave the calculation method of the natural frequency of cantilevered rocks. Using the formula, the natural frequency value within each stage of the rock can be calculated, and the critical...

... control of tunnel structures. plate tectonics structural geology geologist reservoir characterization thickness specimen formula environmental science 861 silicone university resistance society iop publishing iop conf conference tunnel earthquake resistance engineering absorption...

... coefficient (ESC) and/or energy dissipation coefficient (EDC) remained constant under various loading rates, exhibiting an approximate independency on loading rate. Based on this, a unified formula for describing the rate-independence of linear energy properties was presented in the tested loading rate range...

... and residents. structural geology assessment geological hazard plate tectonics artificial intelligence society iop publishing iop conf conference landslide china formula geologist risk management vulnerability evaluation vulnerability assessment risk and uncertainty assessment geological...

... achievements of determining the relative density of sand by SPT, this paper estimates the relative density of deep-covered sand by empirical formulas and empirical parameters, but the result is obviously smaller. So a correction methods are proposed, I.e. method 1 st : Use constant c = a / b to transform...

... and construction. society iop publishing iop conf geology conference geologist environmental science 861 geological subdiscipline nephogram equation semi-infinite plane reservoir geomechanics interaction engineering pile-soil interaction mechanism formula landslide journal kpa 11th...

... to the difference in the rate of undercutting of the breach. 3) A peak discharge formula is proposed involving the erosion of the dam and the influence of the upstream lake catchment, which gives more accurate calculation than the previous formulas. 1. Introduction Glacial lake outburst floods (GLOFs) occur...

... deformation and the tunnel bottom drum is proposed. To verify the accuracy of the formula, a similar model is built. Distributed optical fiber is arranged in the model, and the speckle measurement points are arranged on the surface of the model. The method of DIC distributed fiber monitoring is used to verify...

... on theories of elastic mechanics. We theoretically prove a circular hole under far field stress state will be elliptical in shape, and derive the equations between the elliptical parameters and the stress. Formulas for calculating ellipse shape and azimuth by using deformation data of 3 points on borehole...

... Upstream Oil & Gas formula diameter Completion Installation and Operations perforation parameter penetration depth empirical formula perforation penetration depth asian rock mechanics symposium 29 formation pressure perforation Artificial Intelligence equivalent idea isrm...