ERDOX

The ERDOX systems are delivered to the site pre-assembled in mounting kit, directly on the nearest truck road.

In fact, the philosophy behind the Erdox solution is to carry out most of the operations in the factory, leaving the minimum of process to the construction phase; tasks of the installation company will simply be to assemble the structures in a few operations, transport them to the installation site, and connect them to the foundations based on the design specifications. Betonform structures are distinguished by very low weights that make it easy to place them at the installation point with the use of the more traditional construction equipment.

THE MAIN FEATURES
Pre-assembled elements that allow quick and easy assembly (even at different sites than those of actual installation). Low weights with benefits for transportation and installation. Easy and quick installation, even in extreme topographical conditions. Reduced manpower and site equipment
Low environmental impact (for the backfilling, it can be used the landslided material). Modular elements that allows sectoral and selective excavation. Lowest visual impact (visual mitigation and greening of the work). REDUCED COSTS.


: The following is a list of some of the laboratory tests performed by Betonform over more than 20 years in developing the ErdoX solution.
LABORATORY TESTS
ERDOX NEVE: TEST REPORT N°186-06 - L.A.T.I.F. Test type: Strain gauge testing and monitoring at Axamer Lizum (AUT) performed according to UNI 10478-2, UNI 10478-3, UNI 10478-4.
ERDOX TERRA: TEST REPORT N°076-07 - L.A.T.I.F. Test type: Static strain gauge tests performed according to UNI 10478-2, UNI 10478-3, UNI 10478-4. ERDOX JUNIOR: TEST REPORT N°24LA00093 - L.A.T.I.F. - static load test on ErdoX Junior Terra structure
REINFORCED CONCRETE FOUNDATION PLATE: TEST REPORT N° 083/08. Test type: Determination of the maximum breaking load of prefabricated plates.
BALL JOINT: TEST REPORT N°17L400035 L.A.T.I.F. Test type: Actual breaking load performed according to UNI EN 10002-1:2004.
BOX SHAPED ELEMENT FOR ERDOX EARTH "SOIL NAILING"-ANCHOR BAR CONNECTION: TEST REPORT N°646/Z/P - Laboratorio Geotecnologico Emiliano.
ERDOX TERRA-ANCHOR BAR CONNECTION SYSTEM: TEST REPORT N°502/Z/P - Laboratorio Geotecnologico Emiliano.
: 1_Technical support for the design of:
- consolidation of landslided slope;
- consolidation of failed roads;
- retaining walls;
- infrastructure protection;
- longitudinal and transverse hydraulic works;
- avalanche and windbreak barrier.

2_Calculations of single-anchor structures in the actual operating conditions according to NTC2018, through the application of dedicated software and finite element models.

3_Supporting designers in the preliminary assessment for to the applicability of the erdox system and developing suitable design solutions;

4_ Supporting designers in the project phase and in the preparation of documentation for tenders;

5_on site assistance.

Betonform Medesano - Parma

Dr. Riccardo Di Bella

Tel: +39 0525 420 549
M: +39 335 7902013
informazioni@betonform.it

Dr. Vittorio Marco Bellini

Tel: +39 0525 420 549
M: +39 349 8842322
vittorio.bellini@betonform.it

Dr. Dimitri Canepari

Tel: +39 0525 420 549
M: +39 335 1003837
informazioni@betonform.it

ERDOX Terra ERDOX Neve ERDOX Junior ERDOX SOIL NAILING ERDOX GAVETA ERDOX 2FACE

ERDOX Neve

Le strutture ErdoX Neve (Dk300-Dk350-Dk400-Dk450 cm ca.) are the quickest and safest solution for active consolidation of avalanches. Active defense works are those that are carried out in the avalanche formation zone, or better , in the avalanche release zone.

The function of the snow barriers, positioned in a separated, interrupted arrangement, is to stabilize the snowpack in the area of potential release by containing potentially displaceable volumes and reducing the risk and/or effects of the avalanche. ErdoX barrier was conceived, developed, and designed as a snowpack stabilization system and, consequently, was dimensioned and calculated following the WSL-FNP guidelines.

ERDOX SINGLE-ANCHOR SNOW BARRIERS FEATURES

- Minimize work at height, which, in this case, is limited to tracing and carrying out the passive double spiral rope anchors. Only one anchor per structure;
- Pre-assembled elements that allow quick and easy assembly in different sites than those of actual installation, transferring most of the operations downstream, reducing risks to workers and uncertainties about the correct assembly (approx. 30 minutes to assemble one structure);
- Light weight that allows transport by helicoper at altitude;
- Reduced manpower and site equipment. Operations at height are reduced to connecting the structures to the anchros using a bolt supplied with the structures;
- Low environmental impact. Since this is a separated, interrupted arrangement, interspaces are ensured between elements that allow the passage of animals;
- Reduced costs.

: La pressione della neve sull’opera viene invece calcolata facendo riferimento a “Costruzioni di opere di premunizione contro le valanghe nella zona di distacco” (Berna, 2007) e dipende dai seguenti fattori:

• ρ, densità media della neve;
• H, altezza verticale della neve sul posto dell’opera;
• K, fattore di scorrimento, dipende dalla densità della neve e della pendenza del terreno;
• N, fattore di scivolamento, dipende dal tipo di esposizione, dalla rugosità del terreno e dalla sua esposizione al sole (vedi art. 25);
• fc, fattore di altitudine, che caratterizza la dipendenza dalla densità dell’altitudine;
• fR, fattore marginale, dipende dagli intervalli laterali tra le opere (rispettivamente dalla loro disposizione) e dal fattore di scivolamento.
Le strutture ErdoX sono verificate secondo calcoli strutturali eseguiti in conformità a quanto previsto dalle norme tecniche vigenti relative alle opere in cemento armato e geotecniche, e più precisamente:
UNI EN 1993-1-1 “Eurocodice 3” – Progettazione delle strutture di acciaio Parte 1 – 1: Regole generali e regole per gli edifici;
UNI EN 1993-1-8 “Eurocodice 3” – Progettazione delle strutture in acciaio Parte 1 – 8: Progettazione dei collegamenti;
UNI EN 12385-4 “Funi in acciaio – Sicurezza”;
EN 10204:2004 “Metallic products – Types of inspection documents”;
D.M. 22.03.2018 “Norme tecniche per le costruzioni”.

Ogni soluzione dovrà essere minuziosamente valutata e verificata in funzione delle specifiche esigenze di progetto. Tutte le tipologie di barriere Erdox sono state soggette a prove sperimentali sia in vera grandezza che sperimentali al fine di ottimizzare le caratteristiche dei materiali nello sviluppo dei modelli agli elementi finiti e verificare l’attendibilità dei risultati ottenuti tramite i software di verifica. Il nostro staff tecnico è a vostra completa disposizione per valutare e consigliare le migliori soluzioni progettuali.

CONSOLIDAMENTO ATTIVO FENOMENI VALANGHIVI

BENEFITS

Central ball-hinged joint capable of allowing the movement of the rigid retaining plane with respect to the attachment of the tube; this system makes the ErdoX Neve barrier ISOSTATIC, i.e., able to cancel any bending stres induced by local failure of support restraints on the structure

Proper dimensioning of the central stem calculated according to the vertical pressure values that the possible presence of ice plates could determine; these loads are often unknown, never measured, and they are estimated and unofficially provided by the Federal Institute for Snow and Avalanche Research in Davos.

Many years of experience has led us to develop various types of stems with different performance characteristics in order to meet the needs of project designers. All types of stems are designed with the purpose to optimize the weight of the structure in order to allow an easy transportation by helicopter.

Downstream counterpull system, applied directly to the structure, whose purpose is to counteract the occurrence of flexural stresses in the stems caused by the presence of ice plates and snow on the bracing ropes positioned in the upper portion of the ErdoX Snow barrier; This part of the structure is a unique feature and was patented by Betonform to find a solution to a problem that caused devastating deformation over time in classic single-anchor barriers.

Rope panel with CVT (Italian Certificate of Technical Assessment) or CE certification in accordance with Regulation 305/2011 (former European Directive 89/106/EEC) and in accordance with the requirements of Ministerial Decree 14/01/2008 (Technical Standards for Construction). The rope panels are made of wire-core steel cables with nominal strenght not less than 1770 N/mm2 (UNI EN 12385-2), diameter of 8 mm, galvanized with eutectic Zinc/Aluminum alloy, Class A,stranded in a rhomboidal meshes of nominal size not exceeding 300x300 mm; - Double twist mesh with hexagonal opening, woven with steel wire, protected with eutectic alloy Zn-Al5% UNI EN 10244-2 (Table 2 - Class A). The double twist mesh panels are edged laterally in order to simplify the assembly operations. - bracing cables made of steel-core wire ropes with a grade of not less than 1770 N/mm2 (UNI EN 12385-2), diameter 16 mm (UNI EN 12385-4), galvanized with eutectic zinc alloy, Class A. All cables used have thimbles and sleeves, mounted in the production plant; this technical solution makes it possible to avoid the use of clamps that could be placed and not properly tightened, and ensures that the strength characteristics of the coupling are maintained over time as well as making the assembly steps of the system easier.

SINGLE ANCHOR

It is a metal structure, with pyramid-shape, low weight, easy to transport and quick to install. The velocity of the system is ensured by the fact that it requires connection to a single foundation. Double spiral rope anchors are used in almost all installations. Anchors dimensioning is responsibility of the designer who is given design pressures extrapolated from analyses performed by our engineering department.