Halite brine roadbed structure applicable to playa lake region and construction method thereof

Abstract

The invention discloses a halite brine roadbed structure applicable to a playa lake region and a construction method thereof. The halite brine roadbed structure comprises a pervious water partition layer, a halite filling and building layer, a lower sealing layer and a fine particle type asphalt surface layer sequentially arranged on a soil base in a trapezoidal shape; in addition, an anti-seepage heat insulation layer and a protection layer are sequentially arranged on side slopes arranged at the two sides of the trapezoidal halite brine roadbed structure from inside to outside. The construction method has the advantages that according to the characteristics of the halite brine roadbed structure, the goal can be achieved by a conventional construction method from bottom to top and from inside to outside. The method provided by the invention aims at the geological climate condition of the playa lake region; the halite materials in the playa lake region are utilized for providing the novel durable and stable roadbed structure applicable to the region in a way of adjusting measures to local conditions; a corresponding construction method is provided. The recognition on the halite in the road design can be thoroughly changed; the road building cost of the playa lake region is greatly reduced; meanwhile, the reference is provided for the road design and construction in the region.

Description

Technical field: [0001] The invention belongs to the technical field of road construction, and in particular relates to a salt rock brine subgrade structure and a construction method suitable for dry salt lake areas. Background technique: [0002] The formation of the dry salt lake area is a long process. First, under the action of surface water and groundwater, salt is continuously accumulated from the surrounding area to form a salt lake. The area of ​​the water area gradually shrinks until it finally dries up completely, forming a dry saline lake area where salt rocks and salt caps coexist. In recent years, due to national economic development and strategic deployment, it is necessary to gradually improve the national road network layout. The road construction in the dry salt lake area is basically blank; and the dry salt lake area has deposited a large amount of salt during the evolution of the long geological history. Minerals contain a large amount of potassium, sodiu...

AI Technical Summary

Problems solved by technology

[0003] However, the dry salt lake area usually has complex geological conditions, and the soil quality of the stratum presents different degrees of salinization, and the diseases caused by salt swelling and soluble subsidence of the road subgrade due to salinization have become a major problem in road construction in such areas

Moreover, road construction materials and fresh water resources in the dry salt lake area are extremely scarce, making road construction in the dry salt lake area very difficult

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