Francisco García

A Combined Use of GPR Data With Historical Archives for Identifying Pavement Construction Periods of Valencian Silos (16th Century, Spain)

This paper describes the combined use of ground penetrating radar (GPR) data with historical archives performed in the silo-yard of Valencia (Spain) to identify and map various pavement construction periods. The Valencian silos were constructed to house the underground grain storage of Valencia City. This architectural complex is composed of three buildings and a big square (silo-yard), under which 41 silos are placed. The construction of the silo-yard pavement extended for two centuries (16-18th century) following different construction systems. Historical archives confirmed seven pavement construction periods. However, archive data provided scant information on pavement layers and the construction periods. A GPR survey was carried out for pinpointing the seven pavement construction periods. A GSSI SIR-3000 equipment with a 400-MHz frequency antenna was used for collecting

Correlation between GPR data and historical documentation for assessing the pavement constructive phases of Los Silos of Burjassot, 16 th century (Valencia, Spain)

{1} \times {1}\;\text{m}

GPR technique as a tool for cultural heritage restoration: San Miguel de los Reyes Hieronymite Monastery, 16th century (Valencia, Spain)

grid

Non-destructive assessment of a buried rainwater cistern at the Carthusian Monastery ‘Vall de Crist’ (Spain, 14th century) derived by microgravimetric 2D modelling

- {141}

Study of the archaeological structures of the subsurface in churches of the society of Jesus, city of Valencia (Spain), derived from the GPR technique

profiles across the square (

Understanding subterranean grain storage heritage in the Mediterranean region: The Valencian silos (Spain)

{5110}\;{\text{m}^{2}}

Desarrollo del pensamiento logico - formal y su relacion con el desarrollo puberal en los adolescentes

), reaching 1.5-m depth. In addition, a GPS survey was performed specifically for surface mapping the silo-yard in detail. The combined use of the GPR data (2-D reflection profiles, spectra, and amplitude slice maps) with the historical archives allowed identifying and delineating the different pavement construction periods on the silo-yard map in terms of materials and thicknesses. These results demonstrate GPR is a noninvasive and nondestructive technique for mapping soils and near surface horizons. Additionally, the combined use of the GPR data with the historical documentation makes this technique even more efficient for the comprehension of shallow ground layers, especially in cultural heritage studies.

GPR technique as a tool for decision-making regarding timber beam inner reinforcement: The Lonja de la Seda de Valencia, Spain

This paper describes GPR survey performed in the square of Los Silos of Burjassot (1573-1806) in order to detect the location of the total number of silos and the different constructive phases in correspondence with historical documents. This is the first analysis performed in this architectural heritage built in the 16th century. Los Silos of Burjassot was erected to house the underground grain storage of Valencia. This construction is composed of three buildings and a big square beside them, under which 41 silos are placed. During the construction, between 16th and 18th centuries, many pits were filled in because of different reasons and the square was completely paved, following diverse structural systems. Thus, in order to reveal the location and the exact number of silos, as well as to corroborate the constructive phases of the pavement with historical documentation, the GPR survey was directed on the 73x70 m square. A Ix1 m grid, composed of 141 orthogonal profiles, was collected using a GSSI SIR3000 equipment and a 400 MHz frequency antenna, for reaching 1.5 m depth. After the GPR data analysis, 6 non-documented anomalies were detected; and a variable compacted soil stratum and a mortar layer under the pavement were identified. Besides, the 7 constructive phases of the pavement were delimitated in correlation with historical documentation. These results demonstrate GPR is a non-destructive technique suitable for efficient and respectful studies for architectural heritage.