A case history of a tunnel constructed by ground freezing
Abstract
Artificial ground freezing was used for structural support and groundwater control for a 37 m long, 3.2 m diameter tunnel located about 2 m beneath high speed railroad lines in Syracuse, New York. A double row of freeze pipes spaced approximately 0.9 m on-center was used around the periphery of the tunnel above the spring line, while only a single row of freeze pipes was required below the spring line. Excavation of the frozen soil within the tunnel was accomplished with a small road header tunnel boring machine. The results of in situ testing of frozen soil, laboratory testing of frozen soils, computer analysis to predict stress deformation-time characteristics under static and cyclic loading, the instrumentation program including a comparison of estimated and measured performance are discussed.
- Publication:
-
In its Proc. of the 3d Intern. Symp. on Ground Freezing p 389-396 (SEE N83-15691 06-42
- Pub Date:
- 1982
- Bibcode:
- 1982grr..symp..389L
- Keywords:
-
- Construction;
- Freezing;
- Ground Water;
- Site Selection;
- Soils;
- Tunneling (Excavation);
- Cost Effectiveness;
- Deformation;
- Loads (Forces);
- Moisture Content;
- Pipes (Tubes);
- Engineering (General)