CONTENTS INTRODUCTION
page. 2
CLASSIFICATION AND CARTOGRAPHIC PAI
page. 3
GEOLOGICAL
page. 3
LOCAL GEOLOGICAL
page. 4
STRATIGRAPHY OF THE STUDY
page. 5
geomorphologic study
page. 5
DATA seismotectonic
page. 6
hydrological study-HYDRAULIC-HYDROGEOLOGICAL
page. 7
INQUIRY
page. 10
SUMMARY AND CONCLUSIONS
pag. 12
ALLEGATI
pag. 14
A
Carta topografica scala 1:5.000
P.A.I in scala 1:5.000
B
Cartografia PAI scala 1:5000
C-C1
Carta geologica in scala 1:2.000 – 1:5000
D
Colonna stratigrafica
E
Caratteri geomorfometrici e Ubicazione indagini scala 1:500
F
Elaborato indagine sismica
G
Elaborato indagine geoelettrica
H
Elaborato indagine penetrometrica
I
Rap Rapporto Fotografico
SINTESI E CONSIDERAZIONI CONCLUSIVE
I dati scaturiti dalla consultazione cartografica e bibliografica, dal geological survey of the country, from surveys and tests have allowed the reconstruction of the geomorphological model of the utmost distress.
Based on the characteristics of the subsurface stratigraphic and geometrical features, the 'instability detected can be classified as a landslide complex type and retrogressivo translatory movement, which evolves in the flow.
The landslide which governs the slope are related to rainfall scenarios and critical to the following factors:
or presence of a layer of soil that extends the carry-over in the first meters of depth.
or decay of shear strength parameters of soil involved in instability for the recurrence, in the same season, cycles of saturation and desaturation. Ø
the combined action of surface runoff and infiltration water in the first meters of depth, due to the complete saturation of the soil surface by altering the geomechanical and triggering the landslides.
or presence of high and low slope in the middle part of the slope.
or absence of a drainage system that would facilitate the free flow of water.
In reference to comments made on the subject of intervention in the following days to 'landslide, it was possible to obtain, through the measures in place, the geometric data of the landslide body that are given below: BODY LENGTH
LANDSLIDE
~ 50 meters.
WIDE BODY LANDSLIDE
~ 20 meters.
HEIGHT OF CROWN
~ 7.5 mt. DISTANCE FROM PROPERTY
~ 9 meters.
Analyzing the unstable phenomenon as a whole, we can say that the displacements and velocities are high in the paroxysmal stage, while on the move between pre-and post-fracture or subsequent rimobilitazioni are modest.
The phenomenon corresponding to more intense rainfall events, or in conjunction with seismic events including small claims, you may wake receding further and coming to affect the building in question and any underground present (sewer and water pipes etc..) and also mean a condition of threat to people living there.
For these reasons, it requires in order not to worsen even more disruption formed, the system immediately, through the works of drainage and sewerage, rain water so they are both removed from the body of the landslide that building. For the same reason, it requires proof of all the facilities of any kind (sewage, gray water, etc..) And to make appropriate waterproofing works and water conveyance.
Furthermore, in order to characterize the area in detail while offering geotechnical data in order to design interventions most appropriate measures to ensure security of persons and things, it requires at least two surveys immediately to make continuous core, including SPT in the hole and laboratory analysis. These actions will be executed immediately and in any case, work for the safety of the area and then the building connected to it, must be completed within 15 days from the date of issue of this report to avoid rainfall events, also at thunderstorms, typical of the summer, could lead to further deterioration of the state of the slope and aggravate existing risk. Given the high risk to which the subject area concerned, it also requires di non risiedere nel fabbricato in oggetto, fino alla ultimazione dei lavori di messa in sicurezza dell’area.
page. 2
CLASSIFICATION AND CARTOGRAPHIC PAI
page. 3
GEOLOGICAL
page. 3
LOCAL GEOLOGICAL
page. 4
STRATIGRAPHY OF THE STUDY
page. 5
geomorphologic study
page. 5
DATA seismotectonic
page. 6
hydrological study-HYDRAULIC-HYDROGEOLOGICAL
page. 7
INQUIRY
page. 10
SUMMARY AND CONCLUSIONS
pag. 12
ALLEGATI
pag. 14
A
Carta topografica scala 1:5.000
P.A.I in scala 1:5.000
B
Cartografia PAI scala 1:5000
C-C1
Carta geologica in scala 1:2.000 – 1:5000
D
Colonna stratigrafica
E
Caratteri geomorfometrici e Ubicazione indagini scala 1:500
F
Elaborato indagine sismica
G
Elaborato indagine geoelettrica
H
Elaborato indagine penetrometrica
I
Rap Rapporto Fotografico
SINTESI E CONSIDERAZIONI CONCLUSIVE
I dati scaturiti dalla consultazione cartografica e bibliografica, dal geological survey of the country, from surveys and tests have allowed the reconstruction of the geomorphological model of the utmost distress.
Based on the characteristics of the subsurface stratigraphic and geometrical features, the 'instability detected can be classified as a landslide complex type and retrogressivo translatory movement, which evolves in the flow.
The landslide which governs the slope are related to rainfall scenarios and critical to the following factors:
or presence of a layer of soil that extends the carry-over in the first meters of depth.
or decay of shear strength parameters of soil involved in instability for the recurrence, in the same season, cycles of saturation and desaturation. Ø
the combined action of surface runoff and infiltration water in the first meters of depth, due to the complete saturation of the soil surface by altering the geomechanical and triggering the landslides.
or presence of high and low slope in the middle part of the slope.
or absence of a drainage system that would facilitate the free flow of water.
In reference to comments made on the subject of intervention in the following days to 'landslide, it was possible to obtain, through the measures in place, the geometric data of the landslide body that are given below: BODY LENGTH
LANDSLIDE
~ 50 meters.
WIDE BODY LANDSLIDE
~ 20 meters.
HEIGHT OF CROWN
~ 7.5 mt. DISTANCE FROM PROPERTY
~ 9 meters.
Analyzing the unstable phenomenon as a whole, we can say that the displacements and velocities are high in the paroxysmal stage, while on the move between pre-and post-fracture or subsequent rimobilitazioni are modest.
The phenomenon corresponding to more intense rainfall events, or in conjunction with seismic events including small claims, you may wake receding further and coming to affect the building in question and any underground present (sewer and water pipes etc..) and also mean a condition of threat to people living there.
For these reasons, it requires in order not to worsen even more disruption formed, the system immediately, through the works of drainage and sewerage, rain water so they are both removed from the body of the landslide that building. For the same reason, it requires proof of all the facilities of any kind (sewage, gray water, etc..) And to make appropriate waterproofing works and water conveyance.
Furthermore, in order to characterize the area in detail while offering geotechnical data in order to design interventions most appropriate measures to ensure security of persons and things, it requires at least two surveys immediately to make continuous core, including SPT in the hole and laboratory analysis. These actions will be executed immediately and in any case, work for the safety of the area and then the building connected to it, must be completed within 15 days from the date of issue of this report to avoid rainfall events, also at thunderstorms, typical of the summer, could lead to further deterioration of the state of the slope and aggravate existing risk. Given the high risk to which the subject area concerned, it also requires di non risiedere nel fabbricato in oggetto, fino alla ultimazione dei lavori di messa in sicurezza dell’area.
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