In today's conditions, the development of underground space can rightly be considered one of the most important and dynamic areas in civil and industrial construction at the global level. The article analyzes existing methods of fastening the walls of trenches and pits. A new device and technology for anti-sliding anchor fastening are proposed, which allow temporarily (for the period of construction of the underground part of the building) to hold vertical walls of pits and trenches up to 4 m deep from sliding. The proposed solutions are especially relevant in conditions of dense development, when it is not possible to arrange slopes. In Ukraine, underground construction is gaining special importance in connection with Russia's aggressive war. Underground and buried structures are being built most actively in large cities and megacities. The main reasons for the need to use underground space in cities include the lack of free areas within the historically formed development and the requirements for the development of urban infrastructure. The proposed technology is technologically simple, allows reducing labor intensity of the work compared to traditional methods and reduce their cost. The southern zone of Ukraine is one of the most developed territories, is actively being built up and developed. A significant part of the soil massifs of these territories is prone to landslides, which requires the use of anti-slip structures. However, such measures significantly increase construction costs, affecting the payback period of the facilities.

stable massif, anchor fastening, strip fastening, vertical walls, dense construction, earthworks, labor intensity, rod, spikes, shear plane, geometric center

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