Constructing infrastructure—such as roads, railways, bridges, and buildings—requires a thorough investigation of the land's condition. Leveraging advanced technology and state-of-the-art equipment, we capture precise topographical and spatial data to provide construction technology solutions tailored to our clients' needs.
General survey
Control Point Surveying
This surveying method involves determining the coordinate values of new control points based on established known points. Depending on accuracy, observation methodology, and intended use, it is classified into categories ranging from First-order to Fourth-order control point surveying.
Leveling
Leveling is a surveying method used to determine the elevation difference between two or more points. While methods include 'Direct Leveling' and 'Indirect Leveling,' the term generally refers to 'Direct Leveling,' which utilizes a level and a leveling staff.
Route Surveying
Route surveying is conducted for the planning, design, and construction of transportation routes such as roads and railways, as well as hydraulic systems including water supply, sewerage, irrigation, and drainage channels.
River Surveying
This work involves measuring river morphology, water levels, depths, cross-sections, and gradients. It includes the creation of planimetric and longitudinal profile maps, as well as the investigation of flow velocity and discharge.
Bathymetric Surveying
This work involves measuring the topography of underwater surfaces in rivers, seas, and dam reservoirs. It surveys the depth from the water surface to the bed.
Land surveying
This work involves investigating land and boundaries to prepare the necessary documents and drawings for land and right-of-way acquisition, etc.
GNSS (GPS) Surveying
This surveying method utilizes information from artificial satellites to determine the coordinate values of a position. To enhance precision, we conduct simultaneous observations of both known and new points, then analyze the resulting data to calculate the required positions based on their relative relationship.
Total Station (TS) As-built Management
Strengthening Technical Competitiveness through TS As-built Management
The implementation of Information Technology (IT) in construction management is expected to ensure quality, reduce costs, and accelerate project execution. The National Institute for Land and Infrastructure Management (NILIM) has developed the 'Guidelines for As-built Management Using Total Stations Equipped with Construction Management Data.' This method replaces traditional tools like tape measures and levels with Total Stations (TS). By utilizing TS, work execution measurements are captured as 3D coordinate values, enabling the seamless integration of this data into management, supervision, and inspection processes.
This technology enables on-site personnel to immediately identify discrepancies between the as-built geometry and the design geometry directly on the Total Station (TS) display. Beyond as-built management, these TS units are versatile tools for initial surveys and setting batter boards, leading to streamlined management workflows, significant labor savings in calculations, and the prevention of human error. Furthermore, project owners benefit from more efficient final inspections and can leverage the captured 3D coordinate data for long-term operations and maintenance (O&M).
Four Benefits of TS As-built Management Technology
- Additional points are awarded in technical evaluations for construction projects that implement ICT-based methodologies .
- This significantly reduces on-site work.
- This significantly enhances the reliability and integrity of the project data.
- This technology enhances our appeal to project owners while significantly elevating the technical standards of our on-site construction.
The Transformation Brought by TS As-built Management Technology
Conventional
- Requires frequent and repetitive equipment setups and re-stationing
- Physical traversal poses a risk of damaging or destabilizing slope surfaces
- Measurements are time-consuming due to the sequential use of disparate tools, such as tape measures for length and levels for height
Utilization of Total Station (TS)
- Reduction in Equipment Re-stationing Frequency
- Ensures slope stability by eliminating the need for physical traversal, thereby preventing surface collapse
- Significantly reduced measurement time compared to conventional methods
- Enables high-precision observation of as-built structures
- Full compatibility with conventional surveying methods