نوع مقاله : مقاله پژوهشی
نویسندگان
دانشکده مهندسی عمران، دانشگاه صنعتی خواجه نصیرالدین طوسی، تهران، ایران.
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
The wide range of applications of deep soil mixing has attracted the attention of many researchers to this ground improvement method. Although large-scale field tests are known as the most reliable method for investigating the strength characteristics of DSM columns, the high cost and time-consuming nature of these tests are challenging. To overcome these issues, some researchers have utilized laboratory-scale deep soil mixing devices. However, limited information is available on the design and construction of these apparatuses. Enhancing knowledge in the design and manufacture of this equipment will eliminate the weaknesses of previous devices, increase the capabilities of future apparatuses, optimize construction time and cost, expand studies related to the deep soil mixing method, and ultimately raise awareness of this ground improvement technique. Therefore, this study first fully describes the development of a laboratory-scale deep soil mixing device. Then, the compressive strength of two groups of small-scale DSM columns, both constructed using the developed device and having the same dimensions and installation method, was investigated. The first group had identical cement content and water/cement ratio, while these factors varied in the second group. The low strength variability and good mixing quality of the first group confirmed the performance and accuracy of the developed device for constructing DSM columns. Strength evaluation of the second group showed that by reducing the water/cement ratio and increasing the cement content, the compressive strength of the columns increased.
کلیدواژهها [English]
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