Among the many parameters affecting the design of hydraulic structures on fissured rocks are orientation of principal permeability axes and degree of anisotropy of fissured rocks. Geological explorations rarely provide this type of information. If at all the information is available, methods employed are computationally cumbersome and inefficient. A new concept of simple equations and geometric...

Submitted: Jul 12, 2013; Accepted: Aug 26, 2013; Published: Aug 29, 2013 Abstract: Sand production in water, oil and gas wells is usually controlled by gravel packing techniques worldwide. Consideration in the gravel pack design requires that the particle size is five or six times the formation sand depending on the formation sand median diameter. Sieve analysis result shows that the grain size...

Excavation damage zones that occur around tunnels usually lead to a change in rock permeability, which has an impact on the water inflow into and even induces inrush disasters. For better understanding of effect excavation zone, analytical solutions consider zone are developed based review modification linings grouting circles. Then, both finite element method applied estimate inflow, results g...

the hermeneutic circle articulated by different hermeneuticans in various versions is one of the basic problems in modern hermeneutics. romanic hermeneutics introduced the circle as a methodological principle, but in philosophical hermeneutics the circle has ontological dimensions and regards as a process of understanding. heidegger believes that hermeneutic circle reflects dasein’s existential...

The plastic zone of the surrounding rock borehole is a high-quality channel for gas flow. Studying distribution form in boreholes and characteristics extended connection network essential optimal layout drainage boreholes. Considering pressure parameters based on modified Terzaghi effective stress principle Mohr–Coulomb strength criterion. implicit equation boundary derived. influence two-way c...

the conception and creation of eternal samples is one of the most evident efforts made by man from the very beginning of human life when he observed death and mortality and found all the world's manifestations prone to collapse and destruction. one of the most significant images related to the concept of externality and immortality is circular symbols. in fact, man has represented the conc...

Abstract The effects of periodicity assumptions on the macroscopic properties packed porous beds are evaluated using a cascaded Lattice-Boltzmann method model. bed is modelled as cubic and staggered packings mono-radii circular obstructions where porosity varied by altering circle radii. results for validated previously published results. For unsteady flows, it found that one unit cell not enou...

Oil palm cultivation is generally carried out in monoculture. This has an impact on decreasing soil fertility, one of which the physical properties soil. One solutions that can be done to overcome this oil plants with agroforestry system. The purpose research was compare (Elaeis gueneensis Jacq.) and aloes (Aquilaria malacensis Lamk.) conducted Bukit Kemuning Village, Tapung Hulu District, Kamp...

this research is intended to present an elucidation of interaction between textual context and circumstantial context while comprehending the text. this interaction is maintained in a specific hermeneutic circle of comprehending the text. the qur’ān is divine word and has characteristics that demands hermeneutic circle proportionate to it. therefore, in this research the characteristics influen...