Calculation of the dewatering plant for an elongated excavation
Abstract
Widespread use of the method of artificial lowering of the groundwater level in the construction of foundations for hydraulic and industrial structures, as well as large high-rise buildings caused the need to develop a methodology for calculating the water inflow to excavations in different hydrogeological conditions. The present article deals with the case of water inflow to the dewatering unit of an excavation, elongated in plan form, under the conditions of pressure-unpressurized regime of aquifers opened by the excavation. Attention to this case was attracted by the construction of a lock on a navigable canal. In spite of its special character, the set task is also of theoretical interest, as it allows us to check the suitability of certain calculation schemes and formulas in specific hydrogeological conditions. The excavation of the mentioned structure has already been constructed at present, and the forecast of possible groundwater level lowering, which was given in 1952 when designing the structure on the basis of the calculations given below, was mostly confirmed.
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