Construction method and structure for preventing rectangular channel in highly cold region from frostbite swelling
A construction method and anti-frost heave technology, applied in artificial waterways, water conservancy projects, buildings, etc., can solve the problems of anti-frost heave structure damage, concrete frost heave damage, poor anti-frost heave effect, etc. The frost heave deformation is small, and the frost heave effect is good.
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[0031] The technical solutions of the present invention will be further described below through specific examples.
[0032] A method for preventing frost heave in deep excavation channels in alpine regions, the method steps are as follows:
[0033] 1) The bottom of the canal slope is an arc-shaped section with an arc length of 6.0m, a canal inclination angle of 50°, and a canal bottom width of 10m. The soil is rolled and then leveled. After rolling, the compaction degree of the channel foundation soil is 1.65g / cm 3 Above, make the channel bottom 12 foundations after leveling, the arc connection section 13 and the channel slope 14 on a horizontal plane in the direction of the water flow, the arc connection section 13 and the channel slope 14 are connected smoothly, and lay on the channel bottom 12 foundation soil Large coarse aggregate 1, the large coarse aggregate 1 is laid along the water flow direction, the thickness of the large coarse aggregate 1 is 40-60cm, preferably 50...
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