PROTECTION OF CONSTRUCTION SITES FROM THE HARMFUL EFFECTS OF WATER THROUGH WATER REDUCTION

Abstract

According to the recommendations of regulatory and technical literature, activities to ensure the engineering protection of buildings and territories from flooding are classified as environmental protection activities. One of the methods of effective water reduction is the installation of needle filters according to various schemes, which can be used as an independent measure or as an additional one, in particular in conditions of dense development, in areas where a dam effect occurs and/or pressurized groundwater enters deep structures, etc. According to the recommendations of regulatory and technical literature, activities to ensure the engineering protection of buildings and territories from flooding are classified as environmental protection activities. One of the methods of effective water reduction is the installation of needle filters according to various schemes, which can be used as an independent measure or as an additional one, in particular in conditions of dense development, in areas where a dam effect occurs and/or pressurized groundwater enters deep structures, etc. The purpose of the research is to analyze the feasibility of installing a needle filter unit as an additional measure for water reduction around the perimeter of the excavation site for the construction of a pumping station and the adjacent territory to increase the reliability of the work. Based on analytical studies, the possibility of using a needle filtration unit as an additional measure for water reduction around the perimeter of the construction site has been proven. The provision of a special technical measure will increase the reliability of the main dewatering works, namely the temporary diversion of the river channel using sheet piling. The main parameters of the dewatering system have been calculated, which will contribute to the creation of optimal conditions for the performance of construction works and can be used during the operation of the completed structures.An algorithm for calculating the main parameters of the water lowering system is presented, in particular, the total water consumption is determined taking into account precipitation. Taking into account the actual hydrogeological situation, compliance with the requirements for the development of excavations, the development and operation of deep structures at a high groundwater level, it is possible to effectively use a needle filtration unit as an additional method aimed at increasing the reliability of water drainage at the installation site, which is considered on the example of the excavation of a pumping station and the adjacent territory.