trench 80 ft long is excavated 500 ft away and is parallel to a riverbank. A sand aquifer is 40 ft thick The river water surface is 50 ft above the horizontal bottom of the aquifer. If the water depth in the trench must be maintained at 10ft, at what rate must water be pumped from the trench? How far from the trench will the aquifer cease to be saturated? Use K of sand = 30 ft/day

Q: : The lower sand layer sand layer in the soil profile of Figure 3a is in an artesian condition.…

A:

Q: A layer of sand 6 m thick lies beneath a clay stratum 5 m thick and above abed thick shale Inorder…

A: A )  Given data : Thickness of sand layer = 6 m Thickness of clay stratum = 5 m Discharge = 0.01…

Q: Q6: A saturated clay sample was consolidated in the triaxial cell under a cell pressure of 150 KN/m.…

A:

Q: 1. Given the structure and the flow net detailed in Figure 1. The coefficient of permeability (i.e.…

A:

Q: A 1.5 m thick strata of sand has a dry unitweight of 15 kN/m3. A contractor passes a vibratory…

A: To determine: The new thickness.

Q: A test well is to be constructed for dewatering purpose in a planned excavation for foundation. The…

A: To draw the spring and decide the boundaries, we first need to comprehend the idea of drawdown,…

Q: A bed of uniform sand having particle size 0.66 mm diameter and specific gravity of 2.65, porosity…

A:

Q: 1. (30 pts) The soil profile shown below consists of 10 meters of sandy silt overlying gravel. The…

A: Step 1:Step 2: Step 3: Step 4:

Q: An exploratory drill hole was made in a stiff saturated clay (see Figure 9.9). The sand layer…

A: Solution given next step

Q: How high should the groundwater table be so that the effective stress at C is equal to 110 kPa?…

A: Given data in question  Effective stress at C Void ratio Specific gravity  To find out  Depth of…

Q: How much is the strike separation (i.e., line AB on the map)? Scale: 18mm = 100m 82m 181m 67m 24m O…

A: AB = 32 mm

Principles of Seepage

In hydrology, when water flows down in a pore or crack of unsaturated soil due to gravity, the deep layer of soil is called seepage. It is the slow movement of water in the soil layer. Seepage is mainly found near hydraulic structures and is responsible for the stability of earthen-type hydraulic structures.