A soil solidification method for a sandy ground site

Abstract

The invention discloses a soil solidification method of a sandy foundation site. The soil solidification method includes the following steps that firstly, sandy foundation site soil is obtained; secondly, the soil is mixed with a solidifying agent and water and placed in a mold for extrusion forming; and thirdly, and the formed solidified soil is backfilled to the foundation site after being maintained. According to the soil solidification method of the sandy foundation site, a used thermotropic high polymer material uses methacrylic acid-N and a N-dimethylamino ethyl ester monomer, the prepared high polymer material has the characteristic of shrinkage, thus heat generated by solidifyingcan make the thermotropic high polymer material shrink, and the material strains an inorganic material loaded on the surface of the material; when the heat is released, the thermotropic high polymer material can be expanded to make strained particles to be in contact with each other and squeeze, and then a gap is filled with the strained particles, so that the solidifying effect is improved; and in the way, the compressive strength of the solidified soil can be effectively improved, the freeze-thawcycle index of the solidified soil can be effectively increased, and the soil gap is reduced.

Description

technical field [0001] The invention relates to a soil solidification method for a sandy foundation site, which belongs to the technical field of construction engineering. Background technique [0002] With the development of the national economy and the rise of various constructions, the foundation treatment business is becoming more and more important. However, in the past, most of the foundation treatment methods started from mechanical equipment, and then established a certain construction method, but there were relatively few improvements in the quality and effect of foundation treatment from materials and manpower, especially in today's soft foundation treatment, when encountering high water content and rich in organic matter In thick soft soil, when the deep mixing method is used, the strength of the cement pile cannot be improved even if the amount of cement mixed is large. At the beginning of the 20th century, some economically developed countries used lime and cem...

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Problems solved by technology

However, in the past, most of the foundation treatment methods started with mechanical equipment, and then established a certain construction method, but there were relatively few improvements in the quality and effect of foundation treatment from materials and manpower, especially in today's soft foundation treatment, when encountering high water content and rich in organic matter. In thick soft soil and deep mixing method, no matter how much cement is added, the strength of the cement pile cannot be improved.

At the beginning of the 20th century, some economically developed countries used lime and cement to improve the soil due to the needs of new roads, ports, airports and other projects, and achieved good results. However, in the long-term soil consolidation project, people gradually realized that these solidification There is an obvious shortage of materials, which cannot meet the development needs of engineering construction

However, for saline-alkaline sandy sites, due to the soft soil and high salt content, conventional soil curing agents have the problem of low curing strength.

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