Laterlite Underground Void Filling, Ground Stabilisation
UNDERGROUND VOID FILLING, GROUND STABILISATION
UNDERGROUND VOID FILLING, GROUND STABILISATION
Underground void filling and ground stabilisation is often necessary to avoid disruption and to ensure safety against cavity collapse, as well as to avoid the risk of land subsidence.
information
BRAND
Laterlite
PRODUCTION
Made in USA
TECHNIQUE
This technique is also used for making safe disused underground tanks, by filling them with expanded clay and leaving them in place.
LOAD
As compared to filling with a traditional aggregate or grout, this significantly reduces the additional load and the lateral thrust, avoiding the risk of settlement.
DETAIL
The presence of abandoned underground voids of any origin, natural or artificial, is frequent in the subsoil of cities or in some specific geographical areas for historical or geological reasons, often due to the excavation of quarries in the proximity of or under buildings: it often constitutes a risk to the stability of structures and limits development projects and the possibilities of realisation for future buildings.
COMPRESSIVE
The filling of underground voids with Laterlite Expanded Clay is a tried and tested technique for their stabilisation and for making them safe: in fact, expanded clay (either loose or bound with cement), thanks to its high compressive strength, enables stresses on the ground to be redistributed throughout the subsoil, eliminating dangerous load concentrations and attenuating and redistributing them over time
COLLECTION
Underground
ENVIRONMENT
Outdoor
FIRE
Safe in the event of fire
DOWNLOAD
↓ Geotechnics and Infrastructure
REDISTRIBUTION
Positive load redistribution in the parent rock
ADVANTAGES
-Reduced additional loading and minimal alteration of the tension state of the ground below the filled cavity and surrounding it (minimised lateral thrust) -Ease of execution -High drainage capacity: no alteration of water flows within the ground -Safe in the event of fire -Can be carried out as temporary works that are easy to remove at a later stage
FILLING
Undergroud
USE
Construction
FILLING
After an underground void has been filled with Laterlite Expanded Clay, the effectiveness of the procedure can be maximised by injecting an expanding polyurethane resin into the cavity, completely saturating the internal volume and applying a predetermined amount of precompression to the walls and cover of the cavity. This resin injection system is denominated “Cavity Filling” and was developed by Laterlite in collaboration with Uretek.
STRENGTH
Thanks to its high compressive strength in fact, expanded clay (either loose or bound with cement), enables stresses on the ground to be redistributed throughout the subsoil, eliminating dangerous load concentrations and attenuating and redistributing them over time.
CAPACITY
High
EXECUTE
Easy
