STUDI INTEGRITAS TIANG DENGAN CROSSHOLE SONIC LOGGING, CROSSHOLE TOMOGRAPHY, PILE INTEGRITY TEST, DAN PARALLEL SEISMIC
نویسندگان
چکیده
منابع مشابه
Crosshole seismic tomography with cross-firing geometry
We have developed a case study of crosshole seismic tomography with a cross-firing geometry in which seismic sources were placed in two vertical boreholes alternatingly and receiver arrays were placed in another vertical borehole. There are two crosshole seismic data sets in a conventional sense. These two data sets are used jointly in seismic tomography. Because the local sediment is dominated...
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When an inverse problem can be formulated so the data are minima of one of the variational problems of mathematical physics, feasibility constraints can be found for the nonlinear inversion problem. These constraints guarantee that optimal solutions of the inverse problem lie in the convex feasible region of the model space. Furthermore, points on the boundary of this convex region can be found...
متن کاملGeostatistical inference using crosshole ground-penetrating radar
High-resolution tomographic images obtained from crosshole geophysical measurements have the potential to provide valuable information about the geostatistical properties of unsaturated-zone hydrologic-state variables such as moisture content. Under drained or quasi-steady-state conditions, the moisture content will reflect the variation of the physical properties of the subsurface, which deter...
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A of seismic waves is sensitive to the physical properties of the subsurface and has been observed in vertical seismic profiling (VSP) and reflection data. De et al. (1994) report measurements of the Pand S-wave quality factors from VSP surveys and sonic logs. Klimentos (1995) measures compressional and shear attenuation from sonic logs in sandstone formations with variable oil, water, and gas...
متن کاملDistributed Soil Moisture from Crosshole Ground-Penetra ng Radar Travel Times using Stochas c Inversion
Geophysical methods off er several key advantages over conven onal subsurface measurement approaches, yet their use for hydrologic interpreta on is o en problema c. We developed the theory and concepts of a novel Bayesian approach for high-resolu on soil moisture es ma on using travelme observa ons from crosshole ground-penetrating radar experiments. The recently developed Mul -Try Diff eren al...
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ژورنال
عنوان ژورنال: JMTS: Jurnal Mitra Teknik Sipil
سال: 2019
ISSN: 2622-545X
DOI: 10.24912/jmts.v2i4.6185