#ground survey

[surveyeng]

How To Achieve The Best Results With Volumetric Surveys

Whilst doing volumetric surveys the accuracy matters a lot regardless of the method being used. This is mainly because the accuracy is the one that will give true results which will be helpful. Below are various ways and tips of obtaining the best results while doing these surveys.

Doing these surveys on smooth surfaces is much easier and allows the results to be more accurate. This is because whilst doing the survey on a flat surface is able to prepare a 3D model in a more effective manner. Furthermore, in a smooth surface fewer places will require to be measured. This can be more helpful if even the stockpile is smooth with defined edges. With smoothness the survey will be easier to do regardless of whether it is ground or aerial surveying. If the ground or stockpile is not smooth it will be not easy to know what is beneath the stockpile and therefore the results will not be totally accurate. This will also require more points to be surveyed so that the total results can be compiled to come up with the final results. Therefore, if the surface and stockpile are smooth the results will be more accurate.

Using the right photogrammetric software can also help a lot in producing better results while doing volumetric surveys. This is because the software will be able to produce the right 3D model especially while doing aerial surveying. There are different programs that are used to produce the 3D model and some of the programs are better than others. This makes it paramount to carefully compare the programs so as to identify the most suitable one. The comparison can be done easily through going through the descriptions of the programs. This comparison will take into account all the elements that will be required to produce the best 3D models. Doing the comparison will ensure that one will get the right software and as a result it will be easier to get better results.

Whilst doing ground surveying it is also important to use GPS receivers that are effective. This is because these receivers will be the ones that will measure the locations and levels of stockpiles. The importance of this is that it is not easy to know exactly what is happening below the stockpiles but with effective GPS receivers it will relatively easy for the receivers will know all about the stockpile. One can compare different receivers so as to know the ones that have the right qualities. One can also consult the experts who know the most effective receivers. Therefore, through following the outlined guidelines it can be possible to achieve the best results whilst carrying out volumetric surveys. For more information about volumetric surveys, visit http://surveyeng.co.uk/.

[fanniehollander-blog]

Understanding land surveying, the different types and methods

Land surveying fulfils a number of purposes and is carried out using a wide range of methods. Some of the most common surveys include the following:

An archaeological field survey is an assessment of archaeological sites or finds, where their locations are plotted in a landscape. Laser surveying can produce 3D computerised models of artifacts.

An ‘as-built’ survey is carried out during a construction project, or after one has been completed. It will evaluate the location of the constructed elements, and is often drawn in red or redline on an overlay.

A bathymetric survey will map the bed of an ocean, lake, river or other body of water. A bathymetric survey will measure the depth of the land below sea level, and is the direct opposite of a hypsometry survey, which will measure the height of land above sea level. They depth measurement is likely to be carried out with the use of sound measuring such as sonar, and global positioning (GPS) will measure this position on the earth’s surface.

A boundary survey will establish the legal boundaries of land. Boundary surveys will ascertain the corners of a ‘parcel’, and may involve the setting or restoration of monuments or markers to mark these boundaries.

Deformation surveys are used to check for and measure change. They use geodetic measuring devices, geotechnical measuring devices and other techniques such as radar measuring devices. This type of survey can be used to measure dams, roads, mining sites, volcanoes, settlements and earthquake-prone areas, and how they have changed over time. Laser scanning is one method which can achieve an accurate measurement of deformation.

Engineering surveys may use topographic, layout or as-built surveys, but feature more detailed data. One way to gather this detailed data is by employing accurate techniques such as GPS or laser surveying.

A foundation survey is carried out to collect the positional data of construction foundations. These surveys show whether or not the foundations were constructed at the right location and elevation as authorised in the plans.

Geological surveys are general recordings of the geologically significant features of an area. This is a general term, and can describe other types of survey.

Hydrographic surveys map the coastline and seabed, and are used in navigation and engineering.

A building survey or ‘as-built’ survey are types of measured survey, which is a general term to describe the survey done to produce plans of a building. Measured surveys can be carried out using any method of surveying, and may include laser surveying.

Mortgage surveys are also called physical surveys. This type of survey will show land boundaries and location of buildings. Sometimes one of these surveys may be required before a lender will approve a mortgage loan.

Structural surveys are often bought by home-buyers. Structural surveys inspect the structural stability of a building or structure, and will make note of their condition and what work may need doing.

A topographic survey marks the elevation of land, and presents these points as contour lines. These can be carried out in a number of ways including triangulation and laser surveying techniques, and may or may not include surface features such as trees and plants.

SUMO Services provide land surveying nationwide, with a comprehensive list of services. SUMO can provide measured building surveying, plan collation, utility detection and mapping and topographic surveying.

Laser surveying