Services

Bathymetric Services for Safety of Navigation

Equipped with extensive field experience, LYUMARINE surveyors can carry out a survey in shallow to medium water depths, meeting IHO S-44 standards with the high emphasis on the safety of navigation. The supreme quality data sets gathered using the high-end swath sonar systems would be then made suitable for submission to a National Hydrographic Office to produce or update the navigation charts. Accurate charting helps to keep waterways safe for vessels and transport.

Determining the least depth across a busy seaway in coastal areas proven to be a very critical job demanding a lot of experience and knowledge. Application of the state of the art high-resolution multibeam echo sounders ensures confident detection of the small features that pose a danger to navigation: vertical piles, rocks and misplaced damaged gabions, anchors, chains, etc.

Underwater assets inspections (pipeline & subsea cables)

LYUMARINE team provides a full suite of subsea cables and pipelines inspection services.

Implementing advanced technology LYUMARINE can provide a survey solution best suited for water depth and site location in order to identify any damage or issues which may gradually lead to a failure of the subsea asset such as sediments erosion or misplaced man made objects.

Underwater asset inspection is a continuing service using cameras, acoustic means (sonars), and also sub bottom profilers enabling through-life monitoring of the pipeline, subsea cable, or structure foundation.

Bridges, seaports and harbors nearshore assets structural 3D inspections

Bridges, quay walls, lighthouses and shore line protection works – the use of modern swath sonar systems in conjunction with the laser scanning systems (LiDAR) allows LYUMARINE to perform “seamless” structural integrity monitoring both above and below the waterline.

LYUMARINE team provides a full suite of 3D inspections ensuring the most accurate and fast assessment of the structural conditions that affect the lifecycle of an asset located in coastal zones. Implementing advanced technology LYUMARINE can also provide a rapid post crisis (flood or earthquake event) damage assessment survey to detect any risks undermining the stability of the construction which may gradually lead to a failure of the facility.

Engineering services in support of offshore dredging project

LYUMARINE has experience and expertise to undertake comprehensive marine site surveys in advance of any dredging project to both determine the size and scope of the work required and to investigate presence of geohazards.

During execution phase of an excavation / land reclamation project LYUMARINE team helps dredging companies to optimize their operations, providing reliable information on the consistency of the seafloor determining its sediments composition type as well as allowing dredgers to anticipate potential risks such as buried pipes, cables, anchors, large rocks, etc.

We use modern methods and techniques in order to carry out large scale surveys and delivering the highest quality results on a fast-track basis thus maximizing production efficiency of an entire dredging operation.

Route clearance surveys and pre lay / post lay inspections

LYUMARINE has an expertise in a prompt delivery of the reliable and accurate route clearance and post \ pre lay survey data on board of the seismic research or construction vessels:

Detailed seabed bathymetry defining any shoals and hazards for the towed seismic cables
Multifrequency and Backscatter data acquisition for discriminating the seafloor characteristics and sediments composition
Water Column data acquisition and analysis for distinguishing any anomalies such as Gas seeps or submerged fishing gear

UXO Specific Geophysical Survey

LYUMARINE carries out complex seafloor sweeps for detecting Unexploded Ordnance (UXO) representing a potential threat to the construction and operation of coastal and offshore projects.