HIGH-SPEED DEFORMATION OF COHESIVE SOILS
Abstract
During design and research stages of various structures of actuating elements of track and roadbuilding machines (hereinafter-TRBM) a multi-step gradual study of the process of interaction of actuating elements with environment for further improvement served as a generally accepted technique without considering changes in the characteristics of the soil. But the change in the properties of the material imposes certain restrictions on working equipment of TRBM, affects its effectiveness. The objective of the author was to present results of theoretical and experimental research related to obtaining rheological characteristics of soils on the basis of device created with participation of the author, using engineering analysis, comparative and mathematical methods. The dynamic deformation device allows simulating an interaction of actuating elements of track and roadbuilding machines with soil ground, while using a method for determining rheological properties of dispersed materials. Finally it was confirmed that machine-soil interaction speed in the range of 3–4 m / s should be considered optimum in terms of impact on the soil.
About the Author
A. N. Telykh
Moscow State University of Railway Engineering (MIIT), Moscow
Russian Federation
Ph.D. (Eng.), associate professor at the department of Theoretical mechanics
Russian Federation
Ph.D. (Eng.), associate professor at the department of Theoretical mechanics
References
1. Чаповский Е. Г. Лабораторные работы по грун-товедению и механике грунтов. – М.; Недра, 1975. – 304 с. Chapovsky, E. G. Laboratory work on soil science and soil mechanics [Laboratornye raboty po gruntovedeniju i mehanike gruntov]. Moscow, Nedra publ., 1975, 304 p. 1.
2. Телых А. Н. и др. Устройство для определения реологических свойств дисперсных материалов. Авт. свид. СССР № 1520391, 1989 г. Telykh, A. N. et al. Device for determining rheological properties of the particulate material. Author’s certificate of the USSR № 1520391, 1989 [Ustrojstvo dlja opredelenija reologicheskih svojstv dispersnyh materialov. Avt. svid. SSSR № 1520391, 1989 g.].Pic. 2. The dependence of viscosity on the speed of impact by changing soil moisture at the section of intense deformation (at Iρ=20, ρ=1,9 g/cm 3)); (1 – W=7,5%, 2 – W=15%, 3 – W=22,5%).
3. Алексеева Т. В., Артемьев К. А., Бромберг А. А. и др. Дорожные машины. Машины для земляных работ. – Ч.1. – М.: Машиностроение; 1972. – 504 с. Alekseeva, T. V., Artemiev, K. A., Bromberg, A. A., et al. Road machinery. Earth moving machines [Dorozhnye mashiny. Mashiny dlja zemljanyh rabot]. Part 1. Moscow, Mashinostroenie publ., 1972, 504 p.
4. Телых А. Н. и др. Оценка реологических харак-теристик при скоростном испытании связных грунтов на сдвиг // Реология бетонных смесей и ее техноло-гические задачи: Тезисы V всесоюзного симпозиума «Реобет-86». – Рига, 1986. – С. 80–81. Telykh, A. N. et al. Evaluation of rheological properties at high-speed test of cohesive soils for shear [Ocenka reologicheskih harakteristik pri skorostnom ispytanii svjaznyh gruntov na sdvig]. In: Rheology of concrete mixtures and its technological problems: Abstracts of V All-Union Symposium «Reobet-86». Riga, 1986, pp. 80–81.
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For citations:
Telykh A.N. HIGH-SPEED DEFORMATION OF COHESIVE SOILS. World of Transport and Transportation. 2015;13(1 (56)):78-82.
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