Sentence examples for head drawdown from inspiring English sources

The retaining walls used during excavation dewatering cause hydraulic head drawdown inside the pit much faster than outside the pit.

The hydraulic head drawdown observed above the water table in the tension saturated zone during pumping and recovery was very similar to the drawdown observed below the water table.

Although drainage was negligible from within the tension saturated zone during pumping, the hydraulic head drawdown below the water table displayed reduced rates of drawdown during the intermediate period of the test.

The first scenario represents the existing policy in the MAIWF at 2006, with total pumping rate 569,020 m3/day from 443 productive wells with an operating time of 10 h/day and to predict the hydraulic head and drawdown from the year 2006 till the year 2050.

The proposed PVPS is designed to provide a daily water demand of 30 m3 with a 20 m static head and a drawdown level.

The optimization model was formulated with the objective of maximizing water production from wells subjected to minimum head constraints and drawdown constraints, while limiting groundwater withdrawals to a maximum of 100 and 200 % of the rate pumped in 2010.

MR. OBAMA: Well, keep in mind the drawdown hasn't begun.

The second type of head constraint used was drawdown of head at a specific location.

Monitoring well A-44, which was closest to the sensor wells, captured an injection interval where the maximum observed drawdown of groundwater head was 6.5 m.

Theis (1935) derived the relation between drawdown in piezometric head and pump discharge from a well.

In addition, the number of shutdown wells was more in the case of minimum head constraints compared with the drawdown constraints.