Volume Calculations
Before any volume calculation can be performed a three dimensional digital terrain model is required. This may be from an actual survey we have completed or from a 3rd party source. The more dense the level coverage is over the area the better as this will produce a more accurate model and therefore volume. Break lines, ie. top and bottoms of banks need to defined and a continual ‘string’ around the extents of the site, mound or spoil heap. It should be noted to the reader that we cannot guarantee these volumes as there is ‘Bulking’ to consider and what happens under the mound, heap or land where the volume will be compared to. This is the assumed gradient from one side to the other of the area, mound or spoil heap in question. Output of any volume will be in cubic metres with ‘Cut or Fill’ noted along with the areas calculated.
View Product on Company Website
Other Products and Services from CD Surveys Ltd
OS GNSS & GPS Survey
GPS (Global Positioning Systems) or GNSS (Global Navigational Surveying Systems) Surveying is the most advanced positioning and data recording technology available to the Land Surveyor in today’s world. Using available Satellites from the US, Russia, Europe and China (generally a minimum of 5 satellites are required at any one time, for position initialisation), the Receivers record satellite signals and with internal receiver software, sub-centimetre accurate horizontal and vertical positioning data can be provided about any point or feature. This data can be related either to the OS National Grid Coordinate system or to your project’s own Local Grid. The recorded data can be processed and manipulated by various software applications, depending on client requirements.
The processed data is then available to the Project Team in various forms to ensure everyone has the highest quality information to hand. This is a system set up and controlled by the U.S. Military. They have at the time of writing, in combination the set up is around 30 satellites in orbit around the earth. These satellites send signals to earth, GPS receivers on the ground pick up these signals. The receivers use the signals from a number of satellites to calculate their own position on the earth’s grid reference system with a sub millimetre accuracy, depending on the equipment used.
We have found that GPS surveying technology is versatile and adaptable and could be utilised in most civil engineering and construction projects. It is user friendly and can link up with various software applications to give the professional surveyor an accurate and all-round surveying tool. Surveyors can work independently from other surveyors on site, allowing greater productivity. However redundancy is required to ensure a robust output is acceptable to the deliverables. This may involve multiple readings over a span of time or be proven with conventual means.
The processed data is then available to the Project Team in various forms to ensure everyone has the highest quality information to hand. This is a system set up and controlled by the U.S. Military. They have at the time of writing, in combination the set up is around 30 satellites in orbit around the earth. These satellites send signals to earth, GPS receivers on the ground pick up these signals. The receivers use the signals from a number of satellites to calculate their own position on the earth’s grid reference system with a sub millimetre accuracy, depending on the equipment used.
We have found that GPS surveying technology is versatile and adaptable and could be utilised in most civil engineering and construction projects. It is user friendly and can link up with various software applications to give the professional surveyor an accurate and all-round surveying tool. Surveyors can work independently from other surveyors on site, allowing greater productivity. However redundancy is required to ensure a robust output is acceptable to the deliverables. This may involve multiple readings over a span of time or be proven with conventual means.
Building Monitoring
Building monitoring or any structure which may ‘move’ should be checked for movement. This can be in the form of ‘Tell Tales’ adhered to the fabric, Studs drilled and placed at strategic points to then be accurately levelled or targets adhered to the structure to be used in the monitoring of either or all of the 3 axis. Any movement in these 3 axis, ie. differences in Eastings, Northings and Height would be observed and collected using accurate electronic instruments from robust survey stations away and clear from the site.
Flood Risk Assessment
Floor or DPC level surveys related to GPS or Ordnance Survey Bench information can then be used to determine whether a building or area of land is liable to flooding. Our information is generally then issued to the Environmental Agency or a specialist company who will then provide a concise report for any Floor Risk Assessment.
CD Surveys Ltd
Pentire Stable, Fordbridge Road, Sunbury On Thames, Middlesex, TW16 6AX, United Kingdom
CD Surveys Ltd are a Middlesex-based surveying and engineering company specialising in architectural solutions for interior and exterior structures. Specialising primarily in land surveying, site engineering, measured building surveying and 3D laser scanning, our company has an impressive wealth of experience in professional surveying and consultancy for commercial and industrial projects. We are a very customer-focused company providing professionalism and efficiency across all applications, working closely with all clients to ensure that they receive excellent service.