New Technique for making Thin Horizontal Injection Foundations (Neue Technik zur Herstellung Dunner Horizontaler Injektionssohlen).

摘要

Large-surface and deep construction pits, provided with sealing foundations, are becoming increasingly important for economic, technical, and environmental protection reasons. In addition to the conventional technique used in making sealing foundations--that is to say, the drilling method--the use of the vibrator technique offers new possibilities. This method makes it possible, with greater precision, to make thinner and qualitatively better injection foundations on a silicate base with operation limited in terms of time or with permanent operation. By installing up to eight dead injection elements in one work operation lasting just a few minutes and through the consistent separation of the insertion and the pressing process, one can obtain economical advantages compared to the hitherto known drilling technique. This technique, developed by Nederhorst Grundtechnik, is economical not only in comparison to the presently known methods but also in cases where followup damage resulting from underground water subsidence can be avoided with the help of absorption well systems.