schachtweise

Schachtweise is a German term that translates to "shaft-wise" or "in a stepwise manner," often used in the context of engineering and construction. It describes a method of excavation or construction that proceeds downwards in stages or levels, rather than all at once. This technique is particularly relevant when dealing with deep excavations, such as those for mine shafts, elevator shafts, or deep foundations.

The schachtweise method involves excavating a section of the shaft, then constructing a support structure, such as a concrete lining or a steel frame, before proceeding to excavate the next section below. This gradual approach allows for greater stability and safety during the excavation process, especially in challenging soil conditions or where groundwater is a concern. It also facilitates the removal of excavated material and the installation of necessary services within the shaft as it is being deepened.

This method contrasts with "top-down" construction, where the upper levels of a structure are built before lower levels are excavated. Schachtweise construction is essential for projects requiring vertical access deep into the ground. The specific implementation details can vary depending on the project's scale, depth, and geological environment.