Proceedings - 13th International Workshop on Micropiles - 2017, Vancouver, BC, Canada, (ISM, DFI, ADSC)
KIT FOR HOLLOW-BAR DRILLED AND GROUTED MICROPILES AND SOIL NAILING - MEANING AND MISUSE OF THE CE-MARK
Björn Ischebeck, Alice Y. Kayser
The construction product market is one of the largest markets in Europe. To ensure a reasonable safety level in regards to health, durability, energy economy and protection of the environment it requires harmonized legislation. In 1989, the construction Product Directive is launched which was binding only to the member states. The harmonization of all requirements for every application seemed impossible. European technical standards for Execution of special geotechnical works: Micropiles (EN 14199:2015) and Execution of special geotechnical works: Soil nailing (EN 14490:2010) define the requirements for the execution and the product itself. 2011/ 2013 the Construction Product Regulation is introduced binding directly each citizen. This Regulation harmonized the assessment of essential product characteristics. A construction product means any product or kit, which is produced and introduced into the market for incorporation in a permanent manner in construction works or parts thereof. If a construction product is covered by a Harmonized Standard or conforms to a European Technical Assessment (ETA) the manufacturer shall draw up a Declaration of Performance. The ETA is based on a European Assessment Document (EAD), which consists of the harmonized technical specification. This technical data sheet shows the definition of the essential characteristics and the method of verification. The characteristics are related to the system as well as to the single components (such as steel load bearing element and coupling nut) and include: - Load bearing capacity - Resistance against fatigue - Resistance against alternating loads (tension and compression) - Transfer of the impact energy produced by roto-percussion - Protection against corrosion The declaration of performance must express the performance of the construction product in relation to the essential characteristics. The declaration of performance shall bear a CE Marking. The declaration of performance gives transparency about the characteristics of the offered product. There is a national approval or the engineer has to decide if the product fulfills the requirements and is fit for purpose. This paper shall give an overview about the actual legislation in Europe in regards to Micropiles and Soil Nails and technical requirements resulting thereof.
|article #2641; publication #1033 (ISM- 2017)|