Liquefaction resistance of soil with Liquiter Simplified procedure for evaluating liquefaction resistance of soils Following disastrous earthquakes that occurred in Alaska and Niigata (Japan in 1964), Seed and Idris (1971) proposed a simplified methodology for assessing the resistance to liquefaction of soils. This methodology has been selected and improved over the years (e.g. Seed, 1979;…
DetailsIn the technical field it is important to document the works through photographic reports and geo-locate them on the map. The technology we have today allows you to easily get your position in real time. With few economic resources can get smartphones, tablets and PCs, equipped with GPS. Of course in the case of investigations…
DetailsRock masses and software For the rock masses complex formations, geotechnical characterization and modeling is necessary to evaluate the characteristic resistance: the nature, geometry and resistance of discontinuities are important. In addition, it must be specified whether the characteristic resistance refers to discontinuities or to the rock mass. In this respect, we want to give…
DetailsSubsidence How to analyze it with Loadcap Latterly, an interesting research paper, entitled “Alternative methods for calculating compaction in sedimentary basins” whose autors are Martiìn-Martìn M. and Robles-Marìn P., was published on Marine and Petroleum Geology. In this paper, the authors propose alternative methods for calculating compaction in sedimentary basin and, in particular, suggest the…
DetailsSubsidenza come analizzarla con Loadcap Di recente, è stato pubblicato sulla rivista scientifica Marine and Petroleum Geology un articolo dal titolo “Alternative methods for calculating compaction in sedimentary basins” i cui autori sono Martiìn-Martìn M. and Robles-Marìn P.. In questo articolo gli autori hanno proposto metodi alternativi per il calcolo della compattazione nei bacini sedimentari…
DetailsPer effettuare il calcolo dei cedimenti di una fondazione mista occorre fare un’analisi di interazione per individuare come si ripartisce il carico trasmesso dalla sovrastruttura. Deve essere stimata la rigidezza di una fondazione mista che dipende dalla rigidezza della platea e dalla rigidezza del gruppo di pali, che a sua volta dipende dalla rigidezza del…
DetailsThe bearing capacity of a shallow foundation can be defined as the maximum value of the load applied, for which no point of the subsoil reaches failure point (Frolich method) or else for which failure extends to a considerable volume of soil (Prandtl method and successive). Prandtl, has studied the problem of failure of an…
DetailsSlope stability analysis: The term slope means a portion of the natural slope whose original profile has been modified by artificial interventions relevant with respect to stability. The term landslide refers to a situation of instability affecting natural slopes and involving large volumes of soil. Introduction to stability analysis The resolution of a stability problem requires…
DetailsShear check for retaining walls The check sections of the stem and footing of retaining walls are verified to shear without transverse reinforcements to shear (brackets, pins, bent bars) in general for massive structures but also for the purpose to simplify the execution on site. The computation of the shear check is based on the following:…
DetailsComputation of settlements induced by the seismic action The computation of settlements induced by the seismic action is affected by significant uncertainties. The values that are obtained applying the procedures described below must be intended only as guidelines. The settlement is considered to be the lowering of the surface level, or, the integral of the…
DetailsThe article “Determination of geotechnical characteristic parameters” follows the base principles of the Eurocode. “The characteristic value of a geotechnical parameter shall be selected as a cautious estimate of the value affecting the occurrence of the limit state.” [EC7- 2.4.5.2 2(P)] Defining the geotechnical characteristic value means therefore to choose the geotechnical parameter that influences…
DetailsCrack, Serial and Keygen: here’s what to do Are you looking for a cracked version of GeoStru software? Would you like to download a serial or a keygen (key generator) to use GeoStru software for free? Perhaps you are not aware that using cracks, keygens and serials is not only illegal: it also exposes your…
DetailsSheet Pile Walls – Overview In order to have a more efficient usage of construction areas in congested urban areas a vertical development of buildings becomes necessary. Currently we more often face situations where urban buildings need as many parking spaces, so, due to lack of space, that requires the development of several underground floors.…
DetailsLimit equilibrium methods for slope stability analysis do not, in general, satisfy the overall equilibrium conditions; they must make assumptions regarding the inclination and location of the interslice forces. An alternative slope analysis based on the discrete element method is presented to avoid these drawbacks. A slope in the present model is treated as comprised…
DetailsRockfalls can be a major hazard and a threat to life, properties and infrastructure (highways, railways, bridges, power lines, pipelines, buildings, etc.). Rockfalls are a natural process of cliff and hillside erosion. They consist of large rock fragments from a cliff, or boulders from a slope that bounce, roll, and slide down a hillside and…
DetailsAbstract – Shallow foundations This article refers to the design of shallow foundations and highlights the normative requirements following the introduction of EC7-1. The calculation model used is in Appendix D of prEN 1997-1 2003 recognized as: the determination of the load limit of a foundation resting on cohesive soil as a short-term analysis. We…
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