METHOD FOR CONSTRUCTION OF DRAINAGE WAREHOUSE HOUSINGS WITH CENTRAL HORIZONTAL BURIED DRAIN

摘要

FIELD: construction.;SUBSTANCE: invention relates to civil engineering of warehouse buildings and can be used on sections with high level of ground waters. In addition to circular horizontal drainage along outline with depth of index of sole foundation arranged central drain canal along longitudinal axis of underground part of room with deep location, for example, 1.5 m below location of annular drainage. For fast reduction of level of ground water is pumped from central horizontal drains, wherein consumption of central drains makes 30 % of annular drainage. Structurally central horizontal recessed drain is made as annular drainage. First, drain pipes are laid (plastic or asbestos-cement) with calculated diameter of 75 mm (100 mm). Then around drain pipe is arranged gravel side diameter 500 mm, which for preventing colmation runs protective filter material (landscape fabric). As landscape fabric can be used needle-punched material grades "Polyfelt TS 10”, “Polyfelt TS 20”, “Polyfelt TS 30” and thermally bonded materials of grades "Typar SF 27", "Typar SF 40" with web thickness from 0.25 to 1.3 mm. From above drain tube in trench is backfilled with coarse-grained sand with filtration coefficient of no less than 5.0 m/day. Using presented method enables reduction of ground water level (curve of depression) directly in base under floors, as well as allows to exclude dangerous capillary soaking of ground both in normal (examined), and especially at high (seasonal) levels of ground waters.;EFFECT: method includes development of combined horizontal circular, formation and wall of drain tube.;1 cl, 2 dwg, 1 tbl