The Experimental Study Of Biological Enzyme Soil Solidification Technology In Road Engineering

With the deepening of national urbanization construction,road engineering ushered in another large-scale construction and development.For both existing road repair works and new road subgrade,pavement engineering,soil solidification technology is very important.How to ensure engineering technology at the same time,reduce project cost,shorten construction period,reduce environmental pollution has become the key to road engineering solidification technology now.Biological enzyme soil solidification technology based on biological enzyme to achieve.Biological enzyme soil stabilizer is a new type of environmental protection material.It has no pollution to the environment,and can guarantee the strong mechanics and road performance of solidified soil.Firstly,this paper makes clear the research direction and content,analyses solidification mechanism.Secondly,through the comparison of the properties of raw materials,it is proved that the enzyme immobilized soil has higher engineering use value than the undisturbed soil.Thirdly,a series of road performance tests were conducted to reflect the excellent road performance index of biological enzyme stabilized soil.Finally,through the analysis of two aspects of economic benefit and social benefit,the aim of research and popularization of enzyme enzyme soi solidification technology was achieved.This paper mainly through the test data shows that biological enzyme solidified soil have the higher engineering value.The shear strength test is used to determine the friction angle and cohesion to compare the engineering properties of solidified soil and undisturbed soil.Consolidation compression test is mainly to compare the compression coefficient and compressive modulus index of solidified soil and undisturbed soil in order to further behave solidification effect of solidified soil.Unconfined compressive strength test,split strength test and compressive rebound modulus test were respectively measured on day 7,day 14,day 21,day 30 compressive strength value,clearing the optimal dosage of curing agent,drawing the test index.Water stability test and frost resistance test were carried out in the specified time,and the water stability and frost resistance of the stabilized soil road were observed.The research data of this paper will play a guiding role in the promotion of enzyme soil solidification technology,which is beneficial to the further development of this technology.