CE3354 - Homework 10

CE 3354 – Engineering Hydrology FALL Nohemi Aradillas R11786083 11/17/2023 CE 3354 Engineering Hydrology Required HW 10 Due date Nov 17th and posting date Nov 9th Exercises 1. Figure 1 depicts a cubic meter of material that contains 0.26 cubic meters of liquid when saturated. Figure 1: Cubic meter of saturated geologic material (a) What is the volume of voids in the material? ? ?𝑜𝑖?? = 0.26 ? 3 (b) Write the equation that relates void volume ( V v ), sample volume( V b ), and porosity ( n ). ? = ? ?𝑜𝑖?? ? ???? = 0.26? 3 1.0 ? 3 = 0.26 (c) If the density of the liquid is 9800 N/ m 3 , what would be the weight change of a saturated sample is completely dried (all liquid removed)? Show your arithmetic. ? = ? ????? ? ???? ( 1 𝜌 ????? ) : 0.26 = ? ????? 1.0 ? 3 ( 1 9800 ? ? 3 ) ? ????? = 2548 ?

CE 3354 – Engineering Hydrology FALL 202 3 2. Water flows through the aquifer system shown in Figure 2. The heads in the two monitoring wells are 77.0 m and 71.0 m. Figure 2: Confined aquifer system with three formations in series (a) Write the equation for flow rate through a 1-meter wide (into the figure) portion of aquifer. 𝑄 = −?𝐴 ∆ℎ ∆? (b) Using the equation, estimate flow rate through a 1-meter wide (into the figure) portion of aquifer.