Simulation and optimization of high-speed freezing of water-bearing rocks using liquid nitrogen
✍ Scribed by I.S. Zhitomirsky; V.N. Fenchenko; V.I. Borisenko; P.A. Schparber; A.L. Schreiman
- Publisher
- Elsevier Science
- Year
- 1984
- Tongue
- English
- Weight
- 307 KB
- Volume
- 24
- Category
- Article
- ISSN
- 0011-2275
No coin nor oath required. For personal study only.
✦ Synopsis
When sinking shafts or driving tunnels in complicated hydrogeological conditions, soil freezing is widely used in mine and metro constructions end municipal engineering. Among the available techniques of driving or sinking, ground freezing appears to be the most universal and reliable. In a number of cases it is the only feasible way of driving tunnels in unstable water-bearing rocks.
The use of liquid nitrogen to freeze water-bearing rocks while constructing foundations, foundations pits and shaft wells found wide application as early as the sixties, in France, England, Japan, USA USSR and other countries. Thus great experience has been gained in using liquid nitrogen for high-speed freezing of water-bearing rocks. Nevertheless, there are scanty well-founded scientific recommendations for using liquid nitrogen freezing methods. This is due to the fact that the processes occurring in liquid nitrogen freezing are more intensive and complicated to evaluate than the processes of traditional brine freezing.