Dry-method construction method for drift-sand roadbed
A construction method and aeolian sand technology, applied in the construction of road subgrades and railway subgrades, can solve the problems of increased project cost, poor stability, use, etc., and achieve the effect of reducing construction cost and having social benefits
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[0038] Below by specific embodiment, the present invention will be further described:
[0039]In this example, by analyzing the basic physical and chemical properties and basic mechanical properties of aeolian sand, the compaction parameters and compaction mechanism of aeolian sand are studied, and the aeolian sand is used as the main filler for filling the roadbed. The results show that : The dry construction method of aeolian sand subgrade is feasible.
[0040] The aeolian sand in this test has the following characteristics:
[0041] 1) Basic physical and chemical properties of aeolian sand
[0042] The test results show that the aeolian sand has loose structure, poor gradation, large porosity, strong water permeability, poor water retention, good water stability, low cohesion or even no cohesion, and low shear strength. Its mineral composition is mainly quartz, feldspar, and mica, and the content of soluble salt is very small. Its chemical properties are slightly alkaline...
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