Question

TOUCH Practical 2 1. Consider a fully saturated aquifer that has a surface area and thickness of 10 m and 5 m, respectively. Calculate its in itu water storage if n=0.3? lom² x 5 = 50m² - 5om x 0.3= 15 If average fracture aperture is 100 um and distance een fractures (or lineaments) is 0.1 m in a fractured granite, nate: Fracture permeability (k) Fracture porosity مثلث Fracture trace ة تو athered martie he Textural and compositional Bo no on 4 x 30 860- al Zone of BFT Bedding-Fault! plane Joint fracture concentration 90L

1- Consider fully saturated aquifer that has a surface area and thickness of 10 m^2 and 5 m respectively.calculate its situ water storage if n= 0.3

2- if average approacher is 100 micro meters and distance between fractures or (lineaments) is 0.1 m and a fractured granite, calculate:

- Fracture permeability (k)

- Fracture porosity

Answer 1

1. area of aquifer = 10 m² Thickness of aquifer= 5m So volume of aquifer= 50m² porosity of aquifer = 0.3 or 30% about 30% of some are pore Volume of pore = 15 m² as the aquifer is 100% Saturated than about 15 ms will occupy by water as density of water is 1000 kg / m3 . .. Water Storage = 15 m or 15000K 9 2. Practure aperture = 100 fracture spacing - 0.1m tare aperture = 100 x 10m → fracture perch -= 12.d at in (K) where e= fractoare Spacing d = fracture aperture ah = hydraulic head =0% for fully di un saturated Du density of water = 1000 Kg 1 mm = gravity = 9.8 mf ² Mi viscosity = 8.94x104 pascal s 7 fracture permiability = 0 as hydraulic gradient =

D inod Now Fracture x 100 porosity = JOHD te fracture apere ture Where D= 0.1m vion - 99.90% X100 Oolt 10-4