Site Location: Gandikota, Andhra Pradesh

Key Role

To ensure that all project components civil, hydromechanical (HM), and electromechanical (EM)are constructed with accurate geo-spatial control, correct levels, alignments, and coordinates, and strict adherence to design tolerances. He/she is responsible for establishing and maintaining the survey control network, ensuring positional accuracy for all underground, overground, and HM installations throughout the project lifecycle.

Role & responsibilities

1. Establish and Maintain Survey Control Network

- Create and verify horizontal and vertical control points across the entire project area.
- Establish permanent benchmarks for all critical structures (dam, tunnels, pressure shaft, caverns, powerhouse).
- Maintain accuracy and stability of control stations throughout the project duration.

2. Setting-Out for All Civil, Hydro-Mechanical & EM Works

- Provide accurate setting-out for:
- Dam and spillway structures
- Intake, HRT, TRT, adits
- Surge shaft, pressure shaft/tunnel
- Powerhouse and transformer cavern
- Penstock alignment

- Ensure construction matches the design coordinates, alignments, levels and profiles.

3. Underground Works Alignment & Monitoring

- Conduct:
- Tunnel alignment checks
- Deformation monitoring (convergence measurements)
- Overbreakunderbreak evaluation
- Crown, wall, and invert position verification

- Ensure breakthrough of tunnels from multiple headings occurs within tolerance.

4. Support for Hydro-Mechanical & EM Equipment Installation

- Provide accurate alignment for:
- Penstocks, steel liners,



bifurcations
- Turbine runner, draft tube, spiral case
- Generator stator, rotor centreline
- EOT cranes and monorails

- Maintain high precision as required by OEMs.

5. Topographic & As-Built Surveys

- Conduct detailed surveys for:
- Excavation quantities
- Valley, river, and hill terrains
- Underground cavity mapping
- Penstock and pipeline routing

- Prepare as-built drawings for all completed works.

6. Quantity & Progress Verification

- Measure:
- Earthwork volumes
- Rock excavation
- Backfilling
- Concrete quantities

- Support billing verification for contractors and subcontractors.

7. Geodetic and Structural Monitoring

- Monitor movement/settlement of:
- Dam body
- Powerhouse
- Pressure shaft
- Underground tunnels

- Detect and flag any unusual displacement to engineering or safety teams.

8. Calibration & Instrument Management

- Ensure all survey instruments are:
- Calibrated
- Maintained
- Functioning accurately

- Manage up-to-date equipment like total stations, DGPS, LiDAR, tunnel profilers.

9. Compliance with Codes, Safety & Standards

- Ensure all survey works comply with:
- BIS/IS standards
- Project-specific tolerances
- OEM guidelines for machinery alignment

- Maintain safety procedures in:

- Underground areas
- Steep terrains
- Restricted zones

Qualification and Experience

- Diploma or Degree in Civil Eng. will be an added advantage.
- 10-15 years in underground hydropower/ Pump storage projects.
- Well versed in operating AutoCAD, 3D and other related software tools.

📌 Site Surveyor (Tadimarri)
🏢 Adani Group
📍 Tadimarri