Causes of Ground Settlements in Upper Reservoir of Hydro-Wind Plant of El Hierro and Method Implemented for Soil Improvement

Proceedings

Rubio-Ordoñez, Álvaro¹  Arias, Daniel²  Fernández-Baniela, Fabiola³ 

[1] Author to whom correspondence should be addressed.;Department of Geology, University of Oviedo, Jesús Arias de Velasco s/n, 33005 Oviedo, Spain;IDOM Consulting, Engineering, Architecture, S.A.U., Avda. Monasterio de El Escorial 4, 28049 Madrid, Spain

关键词: volcanic materials;    residual soils;    settlements;    preloading;   

DOI  :  10.3390/proceedings2231468

学科分类：社会科学、人文和艺术（综合）

来源: mdpi

【 摘 要 】

This article exposes one of the main engineering problems in the design and construction of the upper reservoir of El Hierro hydro-wind plant, relative to the high settlement of the bottom in the southeast area. The high settlements measured during the construction phase are consequence of the geological-geotechnical settings of the site, a natural depression of a volcanic crater occupied by highly deformable soils derived from the weathering of volcanic materials. Ground improvement was carried out by partial preloading (mobile dune), preceded by the execution of a trial embankment in the southeast area of the reservoir, where the greatest thickness of deformable soils was identified.

【 授权许可】

CC BY