The Crimean Bridge
Improvement of the base soil
at the approaches to the bridge
from the Taman Peninsula

The Crimean Bridge is the longest in Russia. On a global scale, it is а unique object, a set of various complexity solutions.

One of the tasks during the construction of the object was to find the solution for base soil stabilization in bridge / shore zone on the Taman Peninsula side. The need to improve the stability of base soils with safekeeping the free flow of groundwater was based on the following factors:

  • seismic activity in the construction area;
  • watering of base soils;
  • damage to soil initial structure during the salt and peloid production on the Tuzla spit.

Upon the customer’s initiative, the contest for the technology with the best stabilizing result was held on site. Several tests spots were organized there, different technologies were applied, and control tests were carried out. The winning technology was chosen according to the next parameters:

  • optimum lead time;
  • high quality;
  • competitive price of works.

According to the analysis and estimation of efficiency, the best results were performed by the technology of soil stabilization by means of sand or crushed stone piles. The technology was later chosen to execute the work.According to the project documentation, the stabilization of the motorway and railway embankment soil by means of crushed stone piles was carried out.

According to the project documentation, the stabilization of the motorway and railway embankment soil by means of crushed stone piles was carried out. The main characteristics of the project:

  • the diameter of the piles is 1,0 m;
  • the quantity of the piles is 5 414 pieces;
  • the length of the piles is 3 to 9,5 m.

Customer: Mostotrest, PJSC

General designer: АО «Институт Гипростроймост – Санкт-Петербург»

Implementation: 2016 – 2017