Reinforced saline soil with wheat straw and solidifying method thereof

Abstract

The invention relates to reinforced saline soil with wheat straw and a solidifying method thereof. The invention belongs to the technical field of treatment of soft soil foundations. The reinforced saline soil with the wheat straw is characterized in that the fiber reinforcement material, namely the wheat straw, is admixed in the saline soil, lime is simultaneously admixed, the quality reinforcement rate of the wheat straw is 0.15-0.45% and the content of the lime by weight is 5-10%. The construction steps of the solidifying method of the reinforced saline soil with the wheat straw are as follows: (1) performing anti-corrosion treatment on the wheat straw: performing air-drying and cutting-off on the reaped wheat straw, gumming the wheat straw for 1-3 days and performing the air-drying on the wheat straw after the gumming; and (2) reinforcing and solidifying the saline soil: uniformly stirring the gummed wheat straw with the quality reinforcement rate of 0.15-0.45%, the lime in the content by weight of 5-10% and the saline soil and performing solidification construction. The reinforced saline soil with the wheat straw has the advantages of economy, environmental friendliness, no toxicity, no pollution, low price, simple construction, good solidifying effect, capability of being widely applied in saline soil solidifying engineering and the like.

Description

technical field [0001] The invention belongs to the technical field of soft soil foundation treatment, in particular to wheat straw reinforced saline soil and a curing method thereof. Background technique [0002] At present, coastal saline soil is a special kind of fine-grained soil, which contains 0.3%-3% soluble salts, of which sodium chloride accounts for the vast majority. If there are adverse engineering problems such as dissolution, salt swelling, and moisture absorption softening, it must be modified or cured before it can be used in construction projects. [0003] Inorganic materials such as cement and lime are usually used to solidify coastal saline soil, but using this chemical method to solidify saline soil will greatly increase the construction cost; geosynthetic materials such as geotextiles, geogrids, and synthetic fibers can also be added to the soil. Materials, using this physical method to solidify saline soil can improve the strength and deformation resis...

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Problems solved by technology

[0003] Inorganic materials such as cement and lime are usually used to solidify coastal saline soil, but using this chemical method to solidify saline soil will greatly increase the construction cost; geosynthetic materials such as geotextiles, geogrids, and synthetic fibers can also be added to the soil. Materials, using this physical method to solidify saline soil can improve the strength and deformation resistance of the soil, but the construction cost is relatively high, and these geotechnical materials are not easy to decompose after being buried in the ground, causing irreversible pollution to the environment and other problems

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