勘察技术方法考试要点（The key points of the technical method of investigation）.doc

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勘察技术方法考试要点（The key points of the technical method of investigation）.doc

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勘察技术方法考试要点（The key points of the technical method of investigation）

勘察技术方法考试要点（The key points of the technical method of investigation） The first chapter . Groundwater dynamics: the study of groundwater in pore rocks, fissure rocks and karst (karst) rocks Porous media: it is the general term for the medium of porous media, fissure medium, and some of karst not very much developed by carbonite and dolomite Water storage rate: it is also known as the water release rate area is one unit, the thickness is one unit, when the water head reduces a unit the amount of water that can be released Water storage coefficient (water release coefficient) = water storage rate times aquifer thickness The area is one unit, and the thickness is the main body of the aquifer with full thickness of the aquifer. When the water head changes one unit, the elastic release or the storage amount of water . : (S = SsM) water storage coefficient M of aquifer thickness, refers to the area of a unit, the thickness of aquifer thickness M aquifer in the cylinder, when the head change a unit elastic release or storage of water Seepage: suppose this hypothetical flow movement, in any resistance is equal to the volume of rock is the flow of resistance, through any point of arbitrary cross section of the flow and pressure and the actual water flow or head in the same way, this hypothetical flow is called seepage The seepage is the same as the actual flow of water Seepage velocity: the average velocity of the seepage over the cross section of the water, an imaginary velocity The actual average velocity: the direction and velocity of the ground water movement may be called the actual average velocity measured at different points in the gap Pressure pipe head: H_z = z + p/r Hydraulic slope: the vector that is equal to the slope value and the direction of the direction along the water head is referred to as the hydraulic gradient . Dacry is typing the formula here. Expression and application range p14 Q = KA (H1, H2)/l V = Q/A = KJ Q - seepage flow, h1 h2 - water head aroun