What Is the Core-Loc Interlocking Concrete Armor Breakwater Calculator?
Core-Loc is a high-stability single-layer interlocking concrete armor unit developed by the US Army Corps of Engineers (USACE) for coastal breakwaters and revetments.
With a high design stability coefficient (KD = 13 to 16) and slender symmetrical interlocking flukes, Core-Loc provides enhanced hydraulic stability with lower concrete consumption than double-layer rock or Tetrapods.
This calculator computes individual block mass in tonnes, volume, characteristic dimension D, single-layer placement thickness, and packing density per 100 m² of seaward slope.
How Does the Core-Loc Interlocking Concrete Armor Breakwater Calculator Work?
The calculation evaluates user-provided measurements using recognized domain equations, converts between measurement units, and adjusts for real-world efficiency factors.
Core-Loc Interlocking Concrete Armor Breakwater Calculator Formula & Variables
The core mathematical equation utilized by this calculator is expressed as:
Hudson modified formulation for single-layer interlocking armor yielding minimum unit mass, single-layer thickness t = 0.92·D, and packing density.
How to Use the Core-Loc Interlocking Concrete Armor Breakwater Calculator
- Enter your primary measurements in the input fields above.
- Select your preferred units (e.g. metric or imperial) if applicable.
- Review or adjust operational assumptions such as field efficiency.
- Click Calculate to instantly generate the full results breakdown and visual chart.
- Use the Reset button at any time to clear the form and test a new scenario.
Step-by-Step Example Calculation
Breakwater Trunk (H = 5.5m, cot θ = 1.33, KD = 16.0)
Input Values:
Understanding Your Result
Your calculated result represents the realistic operational capacity or baseline output under the specified conditions. Comparing theoretical and effective outputs reveals the direct impact of turns, overlap, and practical downtime.
Factors That Affect the Result
Field terrain, operator experience, equipment maintenance, overlap margin, and weather conditions can significantly influence real-world output.
When Should You Use This Calculator?
Use this calculator whenever you need quick, verified estimates for job planning, budgeting, equipment sizing, or project timelines.
Assumptions & Limitations
- Core-Loc armor units are placed strictly in a single layer with controlled placement grids to achieve interlock.
- Under breaking waves or roundhead exposed sections, KD is derated to maintain safe reserve stability.
Frequently Asked Questions
Calculation Accuracy & Reference Note
This calculator implements verified, deterministic mathematical equations based on published standards. Results should be treated as professional engineering estimates; always verify critical operations with local equipment manuals and site inspections.