Reliable Dredging Estimating
i2D’s dredging estimating tools draw on academic knowledge and are constantly verified in the field. Thanks to state-of-the-art modelling, we have developed in-house estimating tools that are ground-breaking and unique in the dredging consultancy industry. They help develop a design that is sufficiently defined to provide accurate and complete project estimates. Our tools also lets us determine the cost per cubic metre.
![rock core used for production estimate rock core used for production estimate rock quality designation RQD unconfined compressive strength](https://www.in2dredging.com/wp-content/uploads/2016/05/core-box-500x442.jpg)
Dredging Equipment
Using estimating tools, i2D’s dredging estimators can calculate the cost per cubic metre for each type of dredging equipment listed below. This unit rate shows the most cost-effective work method and the most adequate dredging equipment for the project. The unit rate also shows which additional features make a dredger more competitive.
- Trailer Suction Hopper Dredger (TSHD)
- Cutter Suction Dredger (CSD)
- Jet Suction Dredger (JSD)
- Backhoe Dredger (BHD)
- Water Injection Dredger (WID)
- Flexible Fallpipe Vessel (FPV)
- Side Dump Vessel (SDV)
- Mechanical and Jet Trenchers
Relevant Soil Properties
i2D dredging consultants are in a position to examine many different soil properties. Dredging projects are feasible when dredged soil can be reused for projects such as land reclamation or as a building material. Having the right dredging equipment on site is essential in order to able dredge the identified soil in a cost-effective manner. The soil risk has to be mitigated by sufficiently examining the soil properties, such as:
- Sand, clay, mud or rock
- Particle size distribution, grain shape and hardness
- Undrained shear strength
- Compressive and tensile strength
- Organic content
- Contamination
- Shrinkage limit, plastic limit and liquid limit
- Engineering behaviour
- Construction characteristics
Or some less obvious soil properties which can be assessed with more advanced dredging estimating tools:
- Brittle or ductile rock
- Cracking or plastic clay
- Calcareous or silica sand
- Porosity and permeability
i2D supervises and manages geotechnical field investigation to ensure that data is properly collected, so that it can be used to make a reliable production estimate.
Dredging Estimating Tools
Our dredging estimators develop all of i2D’s estimating tools in-house, making them practical and fail-safe by using field experience and academic modelling.
- Developed to provide efficient and reliable production estimates
- Able to recognise the level of definition required for each project and each design phase
- Independent without any bias
- Easy and quick to use for shorter lead times and smaller budgets
- Maintained by a production and cost database on dredging equipment
- All dredging estimating tools establish a cost per cubic metre
![suction-and-discharge-production-limitations PnP graph: suction and discharge production limitations](https://www.in2dredging.com/wp-content/uploads/2016/09/suction-and-discharge-production-limitations-e1474012125821.png)
![trailer suction hopper unloading with rainbowing trailer suction hopper unloading with rainbowing](https://www.in2dredging.com/wp-content/uploads/2016/05/rainbowing.jpg)
Unsure about your estimate or schedule?
Need an independent second opinion?
Ask us about our lead times and budgets, and you may consider a quick second opinion to mitigate risk and identify opportunities.