Method and apparatus for constructing a concrete foundation in the earth, in particular in a built-up area

摘要

According to the invention, a concrete foundation is constructed in the earth in such a way that first of all a hollow space (2) is made in the earth by means of a driving or cutter shield (3). A cast-in-situ concrete filling (15) is placed in the hollow space (2) with the shield driving while maintaining a sufficiently large supply tube (16) for carrying out the shield driving work. After the target of the heading (2) is reached, the mechanical equipment of the shield and preferably also the shield itself are dismantled, in which case the dismantled parts can be transported back through the supply tube (16). The supply tube (16) is then filled with concrete. <IMAGE>