ENGINEERING-GEOLOGICAL AND HYDROGEOLOGICAL INVESTIGATIONS FOR THE DESIGN OF DRAINAGE WELLS NETWORKS
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Abstract
The One of the main problems in construction is the presence of groundwater, which must
be controlled through pumping and limiting its undesirable effects. This work refers to
designing the network of drainage wells for the control of water under the Payret block.
There is a risk that it will be unstable or flood if proper measures are not taken. The most
appropriate pumping system for the type of soil was chosen. The rate and drawdown
caused by pumping were calculated using the transient water flow theory. The design
of the pumping system included the selection of the number, location, diameter and
depth of the wells; the type, diameter and groove of the casings, and the thickness and
granulometric composition of the filter. Likewise, the minimum capacity of the pumps
and the position of the dynamic level in the wells were specified. Groundwater flows
into the excavated area, therefore, to extract it, it must be conducted through collecting
ditches to pumping stations. This procedure is known as bilge pumping, which lowers
the water table inside the excavated water and generates the flow of ground water.
Existing information inside and outside the country was consulted and field work was
carried out —which includes drilling—, in situ tests and sampling. The samples obtained
were analyzed in the laboratory to obtain their physical-mechanical properties.
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