Metrix Surveys Ltd offers a wide range of land surveying services. Metrix produces maps, plans and digital ground models at scales of 1:50 to 1:1250. Techniques include volumetric calculations, 3D terrain models and map production.
Services also include the construction of permanent survey ground markers, transferring and recompiling existing survey data, traverse or network control and detail observation.
Data collection and processing is entirely digital from on-site capture using electronic total station instruments equipped with loggers through to the subsequent processing, editing and plotting using the latest computer techniques.
The expense of an accurate good quality survey should never be neglected. This may not become apparent until on-site construction is underway, possibly causing costly redesigns. For example drains without the correct fall or depths, extra material having to be brought into bring roads up to design level, etc.
The final presentation can be supplied in conventional ink drawn form on stable based transparent material and the industry standard AutoCAD dwg format, ready for immediate use as 2D or 3D computer models as required.
Metrix Surveys offer a reliable setting out service for any size of project. Once a site layout design has been established, Metrix understands the importance of setting out to the highest degree of accuracy. Our survey teams can set out from digitally supplied data or from hard copy plans.
Our highly experienced surveyors can set-out points on site as required, using engineers’ drawings and design co-ordinates. We undertake a complete array of site engineering duties that many clients require for construction projects on sites of all sizes.
We work closely with our clients, providing a flexible and reliable service, to set-out further phases of the works as and when required. Services can vary from a simple setting-out of control points for the resident site engineers, to a complete setting-out service of all points across a whole development.
Terrestrial laser scanning provides highly accurate, three-dimensional images enabling designers to experience and work directly with real-world conditions by viewing and manipulating rich point-clouds in computer-aided design software. By sweeping a laser beam over a scene or object, the laser scanner is able to record millions of 3D points. These X,Y,Z measurements can be imported into CAD or 3D application software and displayed on a computer monitor as a 'point cloud' which has photographic qualities portrayed in one-color, gray-scale, false-color or even true color. Since all laser scan points are 3D, the files can be viewed, navigated, measured and analyzed as 3D models.
Benefits of laser scanning:
Speed of data capture - reduces time and cost.
Remote acquisition and measurement - increases efficiency and safety of surveys.
High point density data ensures a complete survey.
Abundance of data captured in laser scanning reduces questionable data, provides oversampling to ensure accuracy and that all objects, structures, geometry are captured.
High-density, accurate data are direct measurements.
Imagery and 3D visualization provides added confidence that mapped objects correspond to actual existing conditions.
Measured Building Surveys
Comprehensive building surveys to produce accurate digital information are increasingly in demand for any property by Architects, Engineers, Surveyors, Consultants and Facilities Managers in refurbishment, alterations, interior design, space planning, conveyancing, portfolio records and asset management.
Metrix Surveys Ltd specialise in the computerised production of accurate two and three dimensional floorplans, sections and elevations, both internal and external. Information recorded can include all structural and non-structural elements, levels, windows, doors, internal services, office usage etc., to suit individual client requirements.
Data is recorded in the field using the latest electronic surveying equipment with data loggers which combined with computer software enables Metrix staff to produce accurate digital plans directly from the field information. Where record drawings already exist, the information can be scanned, vectorised and converted to digital data, then included in the digital plans with revisions, additions and alterations as required.
Presentation of the above can be produced on traditional master ink transparencies on stable based material as well as digital data provided in the industry standard AutoCAD dwg format.
Utility Services Surveys
Accurate location of underground services can be as important as the recording of surface features. Metrix Surveys Ltd provides a service to precisely locate the underground services and provide accurate plans and digital data.
Underground services including water, gas and electricity mains, telecommunication and cable systems, oil and fuel pipelines, drains, sewers and all culverts, duct and tunnel systems can be traced by physical and electro-magnetic methods.
Where record drawings exist the information can be scanned, vectorised and converted to digital data. Where necessary, this information can be checked in the field and verified prior to conversion such that the final digital database includes all revisions, additions and alterations.
For building refurbishment or facilities management Metrix can also provide the 2 or 3 dimensional building surveys with structural elements necessary as a base for the subsequent superimposition of all internal service information to result in a fully integrated database for designers and managers.
Dimensional Control & Monitoring
Engineering projects often require the accurate co-ordination of many different components to construct a final assembly. Existing structures require continuous monitoring for movement when major works, such as tunnelling take place nearby. Modern calibrated precise electronic survey equipment including precise digital levels, digital extensometers and total stations with data logging facilities achieve accuracies of +/- 0.001 metres.
As-built surveys provide the high accuracy information required to evaluate final structures against design parameters and assessment of dimensional integrity highlights remedial adjustment prior to assembly on site.
Dimensional control can be applied to a variety of demanding tasks:
Structures can be monitored to record movement caused by natural erosion or adjoining construction work.
Components can be surveyed before arrival on site to ensure alignment across the interface between modules enabling accurate and efficient connections to be made.
Process plant structures can be accurately measured prior to modification to ascertain variations from original design.
Cladding can be manufactured to accurate physical site dimensions.