Experimental study on the foundation of soft soil solidification formula based on the Design - Expert software search

2nd International Conference on Materials Science, Energy Technology and Environmental Engineering

材料科学;能源学;生态环境科学

Qian, Chaojun^1 ; Li, Dahua^2 ; Zhang, Xian^1 ; Zhou, Dongqing^2 ; Zhang, Baoliang^2

State Grid Anhui Economic Research Institute, China^1

School of Civil Engineering, Anhui Jianzhu University, Heifei

230601, China^2

关键词: Converter station;    Engineering constructions;    Engineering foundation;    Experimental methods;    Foundation treatment;    Software search;    Solidified soils;    Unconfined compressive strength;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/81/1/012196/pdf
DOI  :  10.1088/1755-1315/81/1/012196

来源: IOP

【 摘 要 】

Xuan city + 1100 kv search for converter station in Anhui province, in the process of foundation treatment, there is a cloth with a large number of lacustrine soft soil can not reach the need of engineering construction, so we want to cure the soft soil. By combining ratio of blast furnace slag (GGBS), gypsum, exciting agent CaO as a main curing agent for combination of reinforcing soft soil, the indoor unconfined compressive strength test, the influence factors on blast furnace slag, exciting agent and dosage of gypsum as impact factors, response value is 7 d and 28 d unconfined compressive strength of solidified soil, the experimental method is the Box - Behnken. The results show that the 7 d gypsum and the interaction of the blast furnace slag is obvious; 28 d exciting agent and gypsum interaction is obvious. By the analysis plaster, CaO, GGBSIn 7 d optimal proportion is 3.71%, 3.62%, 12.18%, the actual strength of the solidified soil age 1479.33 kPa; 28 d optimal proportion was 4.08%, 4.50%, 11.6%, the actual strength of the solidified soil age 2936.78 kPa. In the soil and the water curing effect of GGBS solidified soil, thereby GGBS this is a kind of new solidification material that can be used as the engineering foundation treatment of soft soil stabilizer has a certain value.