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

Stanislav Smugala

Stanislav Smugala

Faculty of Civil Engineering, Department of Construction, VSB – Technical University of OstravaPoruba,
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Smugala, Stanislav
, 
Darja Kubečková

Darja Kubečková

Faculty of Civil Engineering, Department of Construction, VSB – Technical University of OstravaPoruba,
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Kubečková, Darja
 oraz 
František Indra

František Indra

SAFETY PRO s.r.o.Ostrava,
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Indra, František
  
11 lis 2019
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Kategoria artykułu: Case Study
Data publikacji: 11 lis 2019
Zakres stron: 2009 - 2021
Otrzymano: 13 maj 2019
Przyjęty: 27 wrz 2019
DOI: https://doi.org/10.2478/otmcj-2019-0008
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© 2019 Stanislav Smugala et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

Road cross-section with the original reconstruction measurements.
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].
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.
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.
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.
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.
Location of highly permeable rocks (limestone) in the active zone’s bedrock.

Fig. 7

Moisture content as work is conducted.
Moisture content as work is conducted.

Fig. 8

Cross-section of the road according to the new reconstruction procedures.
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
Język:
Angielski
Częstotliwość wydawania:
1 razy w roku
Dziedziny czasopisma:
Inżynieria, Wstępy i przeglądy, Inżynieria, inne
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