DEVELOPMENT OF DEVICE TECHNOLOGY ANTI-FILTRATION SCREEN WITH USE SCREW EQUIPMENT

The problem of protecting territories from flooding is relevant for many decades. An effective way to protect buildings and structures from groundwater is to install vertical anti-filtration screens. But not always waterproof is at the reach of depth, and the construction of a horizontal screen will create additional difficulties. The arrangement of a horizontal screen under an existing building will require a large area of production, the implementation of labor-intensive soil development or the use of expensive horizontal directional drilling. It will also require the interface of the horizontal and vertical parts of the anti-filtration shield to provide protection from groundwater. The technology of the device of the conjugate anti-filtration screen under existing buildings and structures, which are located in areas subject to flooding, has been developed. In the article, the use of well boring under the slope and the device of conjugate anti-filtration screens using the developed screw equipment are considered. Drilling of inclined guide holes is carried out under the existing building at an angle, which ensures further coupling of the anti-filtration elements of the screen. Screw equipment is usually used for the arrangement of vertical wells and the auger is directed along the well being developed. In the developed technology the auger is located perpendicular to the guiding wells and is used for the development, transportation and mixing of soil with solutions. Anti-filtration screens, made with auger equipment, are formed due to intersecting elements, in the form of panels, which are formed by mixing the soil with cement mortar. A technological plan for the production of works to protect against flooding of existing buildings according to the developed technology is developed. The main technological processes, materials and equipment for the production of works are presented.