Construction method for interactive support system to transmit building and traffic loads into load-bearing subsoil with columns of compressed material enclosed by geotextile material driven into ground to interact with soft ground

摘要

The support system consists of columns with geotextile jacketing and the surrounding ground, to transmit building and traffic loads. A first layer of sand (14) is applied to the site, vertical drains (22) are applied in a set pattern, pref. to reach the load-bearing subsoil (16). A second layer of sand (18) is applied, and columns (20,30) of compressed granular material are driven into the soft ground (10) through the sand layers. The columns are enclosed in jackets of stretchy traction-resistant geotextile material. The column system shows flexible self-regulating bearing behavior. When the columns give under load, the loads are at least partially distributed to the surround soft ground, resulting in time and load-dependent balance. A third layer (28) of pref. sand is applied to the system, so that when the load is increased, the columns give and distribute the weight to the surrounding soft material.