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Application of new seismic methodologies for the solution of geomechanic problems connected to the excavation of tunnels

机译:新地震方法的应用,对隧道挖掘的地磁问题解决

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The increasing diffusion of the seismic methodologies has allowed in the last years to resolve some problems connected with the planning and the digging of tunnels. In the note they will be illustrated the contributions for the exploration over the front with the technical T.S.P. and the results achieved with the reflection and refraction seismic methods in to define the geomechanic profile of the galleries and the thickness of the rock weakened following the digging. The T.S.P. prospecting, after an initial phase of experimentation, it has been applied with success in some yards of motorway tunnels and it has allowed to preventively individualization of the discontinuities that the front of excavation would have met in its advancement. The execution of the seismic core boring with methodology tomographic cross-hole performed among holes of survey, also set to notable distance, it allows the reconstruction through an exact geologic and geomechanic profile of the grounds along the axle of the tunnels. This tomographic methodology allows attributing to the model of an elevated precision and this in reference to the dimensions of the mesh used for the interpretation of the seismic data.
机译:在过去几年中允许越来越多的地震方法扩散,以解决与规划和隧道的挖掘有关的一些问题。请注意,他们将通过技术T.P,展示前面勘探的贡献。并且通过反射和折射地震方法实现的结果来定义画廊的地质力学曲线和挖掘后岩石的厚度削弱。 T.S.P.在实验初始阶段的勘探中,它已在一码的高速公路隧道中取得了成功,并且它允许预防挖掘前面遇到的不连续性在其进步方面会遇到不连续性。在调查孔中执行的震动核心钻孔的执行,也设定为显着的距离,它允许通过沿着隧道的轴通过地面的精确地质和地质力学轮廓重建。这种断层方法允许归因于升高精度的模型,并参考用于解释地震数据的网格的尺寸。

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