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Services
Some of the most in-demand services at MGL Topografía Barcelona are:
Monitoring & risk management services
Topographic surveys consist of observing (through use of different systems) the geological and structural variations that result from various causes, such as civil construction.
One recent case in Barcelona involved the survey of land and buildings that are found above the tube and AVE (Spanish high speed train) tunnel developments currently under construction in the city.
Topographical surveys
Topographical surveys are diagrams which present in detail both the planimetry and altimetry of the terrain. These plans incorporate contour lines, altimetric levels, street furnishings, vegetation, sewage and other utility access, etc.
These topographic plats are used for the development of architectural projects (single family and multi-family residencies, buildings, urbanization) and of engineering (roads, bridges, railroads, viaducts, etc).
Cadastral services
Cadastral maps define the boundaries of land parcels and lots, plainly identified on the land by landmarks, walls or metallic fences.
These cadastral maps identify the property lines and land area, and are used for subdivisions, dividing inherited property, boundary disputes between neighbors, sales transaction contracts and for the correction of cadastral information.
Planimetric Maps
Planimetric maps contain more graphical information (houses, pools, pathways, roads, plantation fields, forested areas, etc.) than cadastral maps.
Planimetric maps do not reflect altimetric data and are usually used to position singular elements inside a property.
Measured building surveys
These different plans are the diverse result of depicting the current state of construction, and include the following:
Plans are used in interior design, demolitions, remodeling and appraisals.
Stakeouts
Stakeouts form the start of a construction using stakes, nails and paints to precisely measure and mark points which visually define the evolution of an engineering project. First the excavation sites are marked to define platforms and their levels, followed by marking foundations for pillar reinforcements, footings, stays, wall faces, scaffolding, etc., by referencing the plans to the base construction point of the project.
Grading and profiles
Grading is used to determine the ground levels of a piece of land or project site using known points of reference (start or exiting point). The results of this examination will show the difference between the reference and the actual ground levels.
The grading examination will serve to resolve the unknown differences in grade needed to define the leveling of project platforms, the sloping of drainage systems in public ways, the setting of piping bending levels and the leveling of plains such as driveways, sport fields, docks, jetties, airport runways, patios, etc.
Vertical profiles are diagrams that show differences in grade for a set of points, or of two specific points. These plans document the different angles, horizontal distances and partial distances to the origin of the trajectory. Such profiles will serve as a reflection of the expected behavior of the land, both in architecture (residential projects, terraces and plots) and in engineering (roads, piping, etc).
Volumetric survey
Volumetric surveys are calculations that make comparisons between a piece of land at different phases of surface modification, usually showing the difference between the original or natural land and land that is modified or theoretically modified by excavation or back filling. This volumetric calculation procedure uses the difference between digital models of the terrain from the topographic plats of the different phases, giving as a result cut (extracted soil), cover (added soil) and the difference between the two. This calculation of earthmoving serves to determine the volume of material extracted or added to a terrain, be it in architecture (residential projects and plains) or in engineering (roads, slopes, etc).
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News
Surveying
SURVEYING ENGINEERING: A broadcast of our Argentineans colleagues in the career of Surveying in Buenos Aires, Argentina. Demonstrated in it are all the activities that are part of our profession.
The Career online
"Topographers, as successors to the old time cartographers and cosmologists from our past…those restless and adventurous men that wanted to study the sky, its celestial bodies and constellations, to have knowledge of the earth's magnetic field, to know which path ships should take to reach every corner of the planet…that adventurous spirit at the service of human kind is still present in the topographers and cartographers of today".
Antena 3 Television News
A report from Antenna 3 Television on the wave of robberies of Topography equipment that have affected our colleagues in the field of construction.
It is recommended not to leave equipment unattended in cars or during meals, or if it is possible to keep the car within sight, not to allow too much separation while the project is in progress, or if the need arises, to disassemble the equipment or ask someone at the site to watch over it. These actions could be sufficient in the prevention of a robbery. |
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Marino Guerrero Lao - Surveyor | Web Development MGL |
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