TECCO full scale live test: Objectives,

test set-up and procedure

Contents

• Introduction • Project structure • Objectives • Procedure • Methods and

experimental set-up • Expected results

Introduction

• Accepted CTI-proposal «New flexible facing with untensioned anchors for steep slopes»

• Implementation and Research

• Scientific approach Large-scale tests

Project structure

R&D Natural Phenomena und Geotechnics

Drainage Systems

Behavior of micro-pile groups under static loads

Erosion processes and stability of moountain rivers and lake shores

Soil protection with wooden slats

Avalanche protection

Projects

CTI funds universities to develop technical innovations in cooperation with industrial partners based in Switzerland

State of the art

Objectives

• Use of less anchors and one high-tensile mesh only

• Better understanding of the distribution of forces (tension, pressure and shear forces) and stresses

• Measured parameter High-tensile mesh Actual quantitative value 150 kN/m tensile strength in

direction of slope Required quantitative value (achievement of CTI project)

250 kN/m tensile strength in direction of slope

Project Procedure Work Package 1:

Build-up of a full-scale test

Milestone 1

WP 2: Focus on mesh deformations

WP 3: Focus on anchoring

WP 4: Analysis of full-scale tests

WP 5: Elaboration of proof of serviceability

Milestone 2

Milestone 3

Performance of full-scale tests:

Methods Large-scale test

Measurement • Mesh deformation • Anchor forces and deformations • Wire Rope forces

Factors • soil types • mesh types • anchor densities • slope inclination

Methods Large-scale test

Measurement • Mesh deformation • Anchor forces and deformations • Wire Rope forces

Factors • soil types • mesh types • anchor densities • slope inclination

Anchor forces

Strain gauges

Anchor

SG SG

Force

Anchor

Normal-,shear, and bending stresses

Expected results

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