发明名称 |
METHOD OF PREVENTING FROST HEAVE STRESS CONCENTRATIONS IN CHILLED BURIED PIPELINES |
摘要 |
A method for maintaining a stable soil by surrounding a chilled gas pipe wit h a material that has an antifreeze component that prevents the soil from freezing. By keeping the soil from freezing, it remains stable at all times. The method calls for excavating a trench, lining it with a geotextile membrane that keeps water from infiltrating into the trench, and then surrounding it with a bed of limeston e (calcium carbonate) that is mixed with calcium magnesium acetate (CMA), which acts as an anti-freeze agent. The limestone-CMA mixture surrounds the pipe. The trench is covered by another geotextile membrane to completely seal it. In this way, the pipeline is surrounded by a material that is not subject to freezing. As such, it provid es a stable bed for the pipeline to prevent frost heaving.
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申请公布号 |
CA2502173(A1) |
申请公布日期 |
2006.03.14 |
申请号 |
CA20052502173 |
申请日期 |
2005.03.24 |
申请人 |
METZ, PAUL A.;DONNELLAN, BARRY |
发明人 |
METZ, PAUL A.;DONNELLAN, BARRY |
分类号 |
F16L1/026;E02D19/14;E02D31/14;F16L1/00;F16L1/06;F16L59/00;F16L59/02;F16L59/04 |
主分类号 |
F16L1/026 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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