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The impact of changes in the geological conditions of road bedrock layers while the road was in use Cover

The impact of changes in the geological conditions of road bedrock layers while the road was in use

Organization, Technology and Management in Construction: an International Journal
Volume 11 (2019): Issue 1 (January 2019)
By: Stanislav Smugala,  Darja Kubečková and  František Indra  
Open Access
|Nov 2019

Figures & Tables

Fig. 1

Road cross-section with the original reconstruction measurements.

Fig. 2

Area according to the geological map [explanation of geological structures (the structures themselves relate only to the bold geological structure) is as follows: 19 light yellow-loess clay, genesis-eolic sediment, system-Bohemian Massif-covering formations, formation-quaternary, era-kenozoic, Pleistocene department; 2,243 ocher to pink-eluvial sediments (weathered mantle) stone-sand-clayey eluvia of sedimentary rocks, system-Carpathians, formation-quaternary to neogene, era-kenozoic, department Pleistocene; 1,821 ocher-yellow-marinated sediments, calcareous clay (tégl), in places with sand system-Carpathian Foredeep, formation-neogene, era-kenozoic, department-miocene, grade-Baden; 2,019 green-volcanites, cucumber, picrit, tuff, tuffite, system-Carpathians, area-flysch zone, region-outer group of nappes, regional unit-Silesian, formation-chalk, era-mesozoic, department-lower chalk, degree-berrias, Valangin, Hauteriv, Barrem, Apt, Formation-Volcanicities of the Ashtree Association; 1,986 bluish-marinated, sandstone, conglomerate, claystone, limestone, system-Carpathians, area-flysch zone, region-outer group of nappes, regional unit-Silesian, formation-chalk, era-mesozoic, department-lower chalk, degree-apt-alb, formation-Tešín-Hradiště; 1,968 grey-yellow with blue dots-marinated, claystone, sandstone, conglomerate, system-Carpathians, area-flysch zone, region-outer group of nappes, regional unit-Ždánice unit, sub-Silesian unit, formation-chalk to paleogene, era-mesozoic to kenozoic, department-Upper Cretaceous to Paleocene, degree-Turon, Coniak, Santon, Campan, Maastricht, Formation-Frýdek].

Fig. 3

Profile of the excavated survey probe showing the deformation of the underbase layer.

Fig. 4

Diagram of a geological borehole at the location of deformations.

Fig. 5

Location of highly permeable rocks in the contact aureole in the active zone’s bedrock.

Fig. 6

Location of highly permeable rocks (limestone) in the active zone’s bedrock.

Fig. 7

Moisture content as work is conducted.

Fig. 8

Cross-section of the road according to the new reconstruction procedures.

Results of the analysis of natural moisture content in the soil

ProbeDepth (m)Moisture content, wn (%)CaO treatmentLevel
KS10.6–0.831.41YesActive zone, ceiling
0.8–0.949.90YesActive zone, middle
0.9–1.145.70YesActive zone, base
1.1–1.225.70NoBase, ceiling
DOI: https://doi.org/10.2478/otmcj-2019-0008 | Journal eISSN: 1847-6228 | Journal ISSN: 1847-5450
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Language: English
Page range: 2009 - 2021
Submitted on: May 13, 2019
|
Accepted on: Sep 27, 2019
|
Published on: Nov 11, 2019
Published by: University of Zagreb
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year
Keywords:
construction,
road,
technology,
quality,
reconstruction
Related subjects:
Engineering,
Introductions and overviews,
Engineering, other

© 2019 Stanislav Smugala, Darja Kubečková, František Indra, published by University of Zagreb
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

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