| 摘要 |
FIELD: construction. ^ SUBSTANCE: method of drainage construction includes filling of a layer of a filtering material 2 into surface of a soil massif 1. Further a tubular element 3 is installed onto a concrete shoe 7, and its submersion is started, exposing during the entire process of submersion to vibration with the help of a vibro-hammer 4. Besides, the filtering material 2, located in the area adjacent to the tubular element 3, is exposed to effect of compressed air under pressure of 4-8 atmospheres, which is supplied along a pipeline 5 from a compressor. Filling of the tubular element 3 with the filtering material 2 is carried out in the bottom-up direction via side holes 6 of the tubular element 3. Upon achievement with the lower end of the tubular element 3 together with the concrete shoe 7 to the design elevation 8 of the draining area depth, its withdrawal is started. In process of tubular element 3 withdrawal the filtering material 2 is discharged into the soil massif 1 via the lower end of the tubular element 3, since the concrete shoe 7 is separated and remains in the soil. Besides, exposure to the filtering material 2 with compressed air is continued in the area adjacent to the tubular element 3, as well as vibration exposure to the latter. In the plan each elliptical tubular element 3 into the soil massif 1 is submerged so that adjacent elliptical drains 9 are oriented in plan in mutually perpendicular directions. As a result vertical draining areas are formed with cross section in the form of an ellipse with the ratio of smaller and larger diameters equal to 1 : 4 accordingly. ^ EFFECT: higher drying capacity of drainage and even drying of massif. ^ 3 dwg |
