Рубрика: DEWATERING AND GROUNDWATER CONTROL

Example of type B-2 specifications (dewatering and pressure relief)

a. Scope. This section covers: furnishing, install­ing, operating, and maintaining the dewatering sys­tems shown on the drawings and specified herein; un­watering the Phase I excavation; installing any addi­tional dewatering wells, pumps, and appurtenances, if necessary, to lower and maintain the hydrostatic wa­ter level in the sand formation beneath the excavation to a level at least […]

Example of type B-l specifications (dewatering and pressure relief)

a. Scope. This section covers furnishing, installa­tion, operation, maintenance, and removal of the jet- eductor wellpoint and pressure relief well systems, as subsequently specified in this section; control of any seepage from the soils above the bottom of the excava­tion not intercepted by the jet-eductor wellpoint sys­tem deemed necessary by the Contractor to permit in­stallation […]