MYV establishes a geotechnical model (soil profile) in accordance with the reality of the environment, in interaction with civil works, both from a geological and engineering point of view.
MYV has numerous equipment for on-site tests. The main tools of MYV are the following:
Geotechnical Exploration: MYV establishes a geotechnical model (soil profile) in accordance with the reality of the environment, in interaction with civil works, both from a geological and engineering point of view. MYV has numerous equipment for on-site tests. The main tools of MYV are the following: MYV establishes a geotechnical model (soil profile) in accordance with the reality of the environment, in interaction with civil works, both from a geological and engineering point of view.
The SPT survey is the most widely used in Costa Rica and its execution is based on the ASTM D1586 standard. This assay has its advantages and limitations, and MYV has used it especially in residential projects and developments.
The Lefranc test, applicable to soils, makes it possible to find the permeability coefficient in permeable or semi-permeable soils, of the granular type, located below the water table, and in highly fractured rocks. There are two methods for performing the Lefranc test: at a constant level and at a variable level. MYV has the equipment to carry out the test by both methods.
El ensayo Lugeon, aplicable a macizos rocosos, se realiza en el interior de sondeos y permite calcular semi cuantitativamente el coeficiente de permeabilidad de los macizos, en cualquier tipo de litología y nivel de fracturación, y a profundidad. Su aplicación es muy útil para valorar la permeabilidad global de un macizo rocoso, por lo que se utiliza en terrenos poco permeables y cohesivos.
Soil tests (Atterberg limits, natural humidity, Specific Gravity, etc.).
Aggregate tests (loose/rodded unit weight, specific gravity, absorption, granulometries).
Standard Proctor / Modified Proctor.
Ensayos en agregados (peso unitario suelto /envarillado, gravedad específica, absorción, granulometrías).
Proctor Estándar / Proctor Modificado.
The FVT test is known as the vane test, and its execution follows the ASTM D2573 standard. In order to make its execution as specialized as possible, MYV brought from Norway the version of the Vane commercialized by Geonor (commercial arm of the NGI – Norwegian Geotechnical Institute).
Geotechnical analysis and design: With numerical tools based on the Finite Element Method (FEM) and the Limit Equilibrium Method (LEM), MYV predicts the mechanical response of the ground under structural loads, defined in terms of deformations and stresses. Subsequently, through a technical-economic analysis, MYV optimizes the geotechnical-structural design of foundations, walls and other structural elements in interaction with the ground. Con herramientas numéricas basados en Método de Elementos Finitos (FEM) y Método de Equilibrio Límite (LEM), MYV predice la respuesta mecánica del terreno bajo cargas estructurales, definida en términos de deformaciones y esfuerzos. Posteriormente, mediante un análisis técnico–económico, MYV optimiza el diseño geotécnico–estructural de cimentaciones, muros y otros elementos estructurales en interacción con el terreno.
Service conditions (settlements) and ultimate conditions (shear failure) of driven piles, pre-excavated piles, micropiles and others. The reinforcing steel design, geometric determinations (length, diameter), etc. are included.
MYV has experience in the analysis and design of ground improvement methods (Ground Improvement) such as Rigid Inclusions, ground reinforced with geosynthetics, gravel columns, Dynamic Compaction, Dynamic Replacement, Overload Consolidation, etc.
CIH (Clegg Impact Hammer) allows obtaining the CIV (Clegg Impact Value) which is correlated with CBR and %Compaction. By means of the CIH, it is possible to sweep the landfill that is being compacted up to 20 tests in less than 20 minutes and spatially define areas with compaction problems. Through real-time monitoring, it is possible to tell the contractor where the problems are and how to correct them.
For compaction control, MYV makes decisions and corrections before starting the compaction process to ensure the final compacted product. In this sense, the humidity of the material to be compacted is first checked by means of technologies such as TDR (Time Domain Reflectometry) and Capacitance (ECHO), which allow humidity control in a few minutes. If the material is too dry or too wet with respect to the optimum humidity, it is feasible to recommend corrective measures and determine directly on site when a humidity close to the optimum is reached.