In similarity to every civilization in history originated from the riverside, the city of Nur-Sultan, which the new capital of Kazakhstan developed around the Ishim River. During the last 25 years, many high-rise buildings supported by pile foundations are rising in Nur-Sultan. The paper presents the monitoring of development for the unique residential building of 310 m high with 4-story underground parking. The pile raft foundation (for block R) analyses had designed using Geocthenical soft, which can assess in precise of the deformations, occurs in soil. In the paper presidents, method monitoring raft foundations for block R, the height of this block R is 320 meters. Design of distributed fibre optic strain sensing system (DFOSS) has been employed for measuring the strain in civil engineering structures for over a decade. It is now harnessed worldwide for monitoring a wide range of structures slab pile foundation. Geotechnical monitoring data of adjacent building and utility systems settlement caused by the construction of presented high-rise buildings were compared to numerical modelling results, predicted, and permissible values. Finally, the raft foundation recommended for future high-rise buildings constructed of Nur-Sultan city on complex soils.

In modern architecture, there is an increased need to design constructions in conditions of dense development. It is important to implement a project without hitches. However, during the construction process, design flaws or environmental impacts can often arise in the end result. Therefore, proper design and monitoring allow taking preventive measures that helps to avoid overhaul of buildings in the future, which also affects to the cost of project, and sometimes-human casualties. During and after the construction of high-rise permanent structures often-unacceptable cracking can occur in the external walls and at the base slab of the basement. Respectively, groundwater starts to leak through the cracks of basement, compromising the serviceability and durability of the basement and rendering it unusable. The paper presents the use of fiber-optic sensor technologies geotechnical engineering. In this paper, it has been established the possibility of foundation monitoring system using fiber optic sensors during the construction process. The monitoring system includes a distributed fiber-optic voltage measurement system using a fiber-optic cable, which allows you to control deformations that occur on the surface of the plate. This study involves an investigation of the foundation system in a high-rise buildings and structures in Nur-Sultan city.

Fiber optics are increasingly being used in structural health monitoring applications. In addition to the well-known advantages, they most reliably transmit the stress–strain condition of the structure in the long term. This article presents the results of structural health monitoring on the embedding of fiber optics in the upper layer of the raft over the entire area of a high-rise building in Astana city (Kazakhstan), including the 75-storey 320 m block R. Temperature and strain data were collected constantly via a distributed fiber optic strain sensing system (DFOSS). The analysis of strains in fiber optic chainage indicated that the compression strains were observed over the entire area of the building, with values from −20 to −40 µε and with progression of the compression loaded up to −80 µε along the core wall closer to the eastern facade of the building. Tension strains were concentrated along the extreme axes of the building, with a predominance in the southern part of the R block, as well as in the immediate vicinity of the columns, in a range of −20 to −40 µε, with separate spots from −40 to −60 µε. Individual patches of tension strains near the columns have been explained by the increased deflection of the raft under the application of a concentrated load (columns). Fiber optic monitoring results at the time of testing did not exceed the permitted values for high-rise building operation; however, they characterized the general picture of the strain in the raft plane and made it possible to determine the initiation of cracks in concrete at an early stage.