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由于各地的地质,水文地质条件不同,以及影响氡气迁移的因素多种多样,因而使α径迹的浓度沿测量剖面发生变化,故测出的曲线形态也是多种多样,常见的有以下几种:一、单峰曲线1.单峰对称曲线。测量剖面上α径迹峰值点的轴面(假设的面)与水平面垂直正交,分布在轴面两侧的曲线对称,称单峰对称曲线。此梯度较大的单峰对称曲线常出现在倾角较陡,宽度较窄的张性或张扭性断裂构造带上。峰值点与断裂带中心相对应,这是因为张性或张扭性断裂带受拉引力作用,其中间张开性好,透水性和透气性比其傍侧强。因
Due to the different geological and hydrogeological conditions in different places and the various factors affecting the radon gas migration, the concentration of the alpha track changes along the measurement profile. Therefore, the measured curve shape is also varied, and the common ones include the following Species: A single peak curve 1. Single peak symmetry curve. The axial plane (hypothetical plane) of the a-track peak point on the measurement cross-section is perpendicular to the horizontal plane. The curves distributed on both sides of the axial plane are symmetrical and are called a single-peak symmetric curve. The single-peak symmetrical curve with larger gradient often appears on the tensile or torsional fracture zone with steeper dip and narrower width. The peak point corresponds to the center of the fault zone because the tension or tension-torsional fracture zone is pulled by the gravitational pull with good openness in the middle and stronger water permeability and air permeability than its boulder. because