Construire un abri souterrain : Guide étape par étape

Building an Underground Shelter: Step-by-Step Guide

1. Obtaining Permits

Before any construction, it is crucial to obtain the correct permits to ensure the safety and legal compliance of the shelter. This step involves visiting the local building department with a detailed plan of the shelter, including its location and design. Failure to obtain these permits can result in considerable fines or even demolition of the shelter.

2. Choice of Location

The ideal location should be safe, private, and away from large bodies of water to avoid flooding. It is also essential to avoid areas with dense vegetation to simplify excavation and to stay away from utility lines.

3. Plan Development

As with any construction, start by drawing up a precise plan of the shelter. This plan must optimize space for safety and comfort, taking into account the limitations of available space and functional needs. Use space-saving strategies such as wall-mounted furniture and open design to maximize space efficiency​

4. Selection of Materials

Building materials should be chosen for their strength and durability. Common options include metal, brick and reinforced concrete. Each of these materials has its own advantages, such as water resistance, insulation and longevity. Avoid using wood as a primary building material due to its susceptibility to rot and infestation​

5. Selection of Excavation Equipment

Proper excavation equipment is essential for efficient construction. Machines like trenchers and excavators are needed to dig accurately and quickly. This equipment is specially designed for earthworks and is essential for demarcating and excavating the location of the shelter​

6. Acquisition of Life Materials

An underground shelter must be equipped to support life over a long period of time. This includes ventilation and air filtration systems, a generator for electricity, water filters, and an efficient waste management system. Each element must be carefully selected to ensure long-term habitability​

7. Commencement of Earthworks

The construction method involves creating a trench, installing a support system, and inserting the shelter, followed by backfilling. Safety is paramount when earthmoving, and collapse protection systems must be in place​

8. Shelter Reinforcement

It is vital to reinforce the shelter to withstand the weight of soil, water and vegetation. Use reinforced concrete for foundations and walls, and apply waterproofing coatings to prevent water damage. Walls must be of sufficient thickness to provide additional protection against shock waves and radiation​

9. Storage of Supplies

Store enough food, water and other supplies for at least two weeks. Choose healthy, non-perishable foods and have emergency cooking options ready. It is also important to plan activities and accommodations to maintain mental and physical well-being during extended periods in isolation.
The simplest thing in this kind of situation is to buy survival rations designed for and kept for up to 25 years, they allow you to have the right amount of calories and to have balanced meals without having to plan everything.

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