Progetto S4 INGVProgetto S4 INGV

TASKTASK 2 2

Progetto S4 – Riunione finaleUniversità di Siena, 28-29 aprile 2010

Giuseppe Lanzo

Indagini in foro in alcuni siti delle

stazioni accelerometriche RAN

attivate dalla sequenza sismica

aquilana

Stazioni caratterizzate AQG, AQA e AQK

AQG

AQG

AQG

da 0 a 5 m

AQG

da 10 a 15 m

AQG

da 20 a 25 m

AQG

da 35 a 40 m

VS30 = 685 m/s classe di sottosuolo B

AQG0 1 0 0 0 2 0 0 0 3 0 0 0

V S , V P (m /s )

4 0

3 5

3 0

2 5

2 0

1 5

1 0

5

0

Dep

th (

m)

V P

V S

angular ca lcareous bouldersangular calcareous boulders in sandy m atrixangular ca lcareous boulders

angular ca lcareous boulders

angular ca lcareous boulders in sandy,loca lly silty, m atrix

angular calcareous boulders in sandy m atrixangular ca lcareous boulders

AQG

(da Scarascia Mugnozza)

AQA

classe di sottosuolo B

AQA0 1 0 0 0 2 0 0 0 3 0 0 0 4 0 0 0

V S , V P (m /s )

3 0

2 5

2 0

1 5

1 0

5

0

Dep

th (

m)

V P

V S

fill

rounded m edium dense gravel in sandy/silty m atrix

s ilt and c layey s ilt

gravel in sandy/silty m atrixc lay and s ilty c lay

augular grave l in sandy m atrix w ith leve ls o f very dense sand

calcareous rockextrem ely fractured

augular grave l in sandy m atrix w ith leve ls o f very dense sand

AQA

fill

rounded m edium dense gravel in sandy/silty m atrix

s ilt and c layey s ilt

gravel in sandy/silty m atrixc lay and s ilty c lay

augular gravel in sandy m atrix w ith leve ls of very dense sand

calcareous bouldersextrem ely fractured

0 5 0 0 1 0 0 0 1 5 0 0V S (m /s)

3 0

2 5

2 0

1 5

1 0

5

0

Dep

th (

m)

augular grave l in sandy m atrix w ith leve ls o f very dense sand

M A S W (P o liT o )

D H (U n iR o m a1 )

AQK

VS30 = 685 m/s classe di sottosuolo B

AQK

AQK

Dow n-hole

(da Progetto Microzonazione Sismica Conca Aquilana, MA1)

VS30 = 717 m/s classe di sottosuolo B

AQK

0 5 0 0 1 0 0 0

V S (m /s)

5 0

4 5

4 0

3 5

3 0

2 5

2 0

1 5

1 0

5

0

dept

h (m

)

A Q Kfill

very dense rounded grave l in sandy/s ilty m atrixw ith ca lcareous cobb les

s ilty c laysilty sand

very dense rounded grave l in sandy/s ilty m atrixw ith ca lcareous cobb les

stiff s ilt w ith levels o f sand

fillrounded grave l in sandy/silty m atrixs ilt and c layey s iltg rave l in sandy/s ilty m atrixc lay and s ilty c lay

augular g ravel in sandy m atrix w ith leve ls of very dense sand

calcareous rockextrem ely fractured

0 5 0 0 1 0 0 0

V S (m /s )

3 0

2 5

2 0

1 5

1 0

5

0

dept

h (m

)

augular g ravel in sandy m atrix w ith leve ls of very dense sand

0 2 0 0 0 4 0 0 0

V p (m /s)

angular ca lcareous bouldersangular calcareous bou lders in sandy m atrixangular ca lcareous boulders

angular ca lcareous boulders

angular ca lcareous boulders in sandy,locally s ilty, m atrix

angular calcareous bou lders in sandy m atrixangular ca lcareous boulders

0 5 0 0 1 0 0 0

V S (m /s )

4 0

3 5

3 0

2 5

2 0

1 5

1 0

5

0

dept

h (m

)

0 2 0 0 0 4 0 0 0

V p (m /s)A Q AA Q G

silty c lay

gravel in s ilty/c lay m atrix w ith ca lcareouscobb les and leve ls o fsand andsilty sand

a lternances of s ilty sands, sandy silts and grave lsw ith ca lcareous cobb les

lim estone

0 5 0 0 1 0 00

V S (m /s)

5 5

5 0

4 5

4 0

3 5

3 0

2 5

2 0

1 5

1 0

5

0

dept

h (m

)

A Q V 0 2 0 0 0 4 0 0 0

V p (m /s)

sezione geologica transetto

sezione geologica transetto

(da Progetto Microzonazione Sismica Conca Aquilana, MA2)

sezione geologica transetto

sezione geologica transetto

(da Marsan, …..)