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Cornelia Dobrescu
The present paper addresses the problem of the dynamic response of a vibrating equipment for soil compaction. In essence, dynamic response vibrations are analysed by applying an inertial-type perturbing force. This is generated by rotating an eccentric m...
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Jifang Du, Yinqiu Zhang, Shuaifeng Wu, Yu Dong and Junwei Shi
Dynamic compaction (DC) is a ground treatment method that achieves soil densification effects using impact forces. The ground displacement of a crater induced by a hammer is often used for the determination of densification, but less attention has been p...
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Joon-Shik Moon, Hyuk Sang Jung, Sungjune Lee and Su-Tae Kang
The sabkha soil spreads extensively in the Arabian Gulf Coast region. Sabkha is known as a geotechnically problematic soil because of its loose density, soft consistency, high salinity and water content, and occurrence of fine sands and clays. It is gene...
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V. V. Kovalchuk
Pág. 199 - 207
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Johannes Pistrol, Mario Hager, Fritz Kopf and Dietmar Adam
Vibratory rollers are mainly used for the near-surface compaction of granular media for a wide variety of construction tasks. In addition to the pronounced depth effect, vibratory rollers have offered the possibility of work-integrated compaction control...
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Yong Zhao, Qingguang Zhao, Fei Yang, Honghao Yue, Xiaoze Yang and Huaiyu Li
The launch method of one arrow with multiple satellites can greatly shorten the time for constellation networking and improve the deployment efficiency. A new compression and separation device with a four-bar perimeter arrangement is proposed for multi-s...
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Andi Patriadi, Ria Asih Aryani Soemitro, Dwa Desa Warnana, Wasis Wardoyo, Toshifumi Mukunoki, Gozo Tsujimoto, Mahendra Andiek Maulana and Trihanyndio Rendy Satrya
Sediment compaction due to the extraction of groundwater and self-weight consolidation, and monitoring land settlement of the river delta using geodetic measurement has been executed in several studies, while sediment settlement in the estuary is hypothe...
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Yanzhong Wang, Delong Dou and Xiaoyan Dong
The non-return mechanism is the key device that plays the role of braking in the opening-and-closing electric actuator of an amphibious aircraft hatch door. The ball-and-socket contact pair, providing the pressing force, and the multi-disc friction pair,...
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Xianyang Yu, Jinhao Xie, Yanju Wu, Qiuhong Wu, Zizheng Zhang and Hai Wu
A dynamic numerical method is established to simulate the stability of the surrounding rocks of the retained roadway in FLAC3D, along with a double-yield constitutive model to simulate the re-compaction process of gangue and a strain-softening constituti...
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Lei Wang, Yongsheng Yao, Jue Li, Yiyang Tao and Kefei Liu
The sustainable performance of asphalt pavement depends on the quality and mix design of road aggregates. Identifying aggregate morphology and size is a prerequisite step for material design and numerical modeling of asphalt mixtures. The paper aims to r...
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Ting Yao and Wei Li
Mega land reclamation projects have been carried out on the coral reefs in the South China Sea. Coral sand was used as a backfill material through hydraulic filling, with fill heights ranging from 6 to 10 m. To enhance foundation stability, vibro-flotati...
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Hafiz Md-Tahir, Jumin Zhang, Yong Zhou, Muhammad Sultan, Fiaz Ahmad, Jun Du, Amman Ullah, Zawar Hussain and Junfang Xia
Traction failure on loose terrain is common in conventional agricultural wheeled tractors due to poor traction ability and lower power transfer efficiency of drive wheels, which leads to excessive energy consumption and soil compaction in agriculture. To...
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Haisheng Zhao, Jianming Su, Shijie Ma, Chunhua Su, Xiaoyan Wang, Zengguang Li, Jincheng Wei and Shiping Cui
Millions of tons of reclaimed asphalt pavement (RAP) and reclaimed aggregate or reclaimed inorganic binder stabilized aggregate (RAI) is produced every year in China. The cold recycled mixture (CRM) technology reduces fuel consumption, emissions, and cos...
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Sen Yang, Nong Zhang, Xiaowei Feng and Jiaguang Kan
Time-dependent deformation of coal is a major concern for deep coal mining. When experiencing high stress conditions, the enhanced time-dependent deformation of coal will become a very possible factor to trigger the violent failure of underground opening...
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Ayad Subhy and Davide Lo Presti
The addition of recycled tyre rubber as a modifier to enhance the mechanical properties of bitumen has proven to provide asphalt mixtures with better mechanical performance. However the rubberised bitumen presents the limitation of requiring higher manuf...
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Gonzalo Yáñez,Mauricio Muñoz,Valentina Flores-Aqueveque,Andrés Bosch
Pág. 147 - 172
A recording of 1,115 gravimetric stations, the review of 368 wells, and the petrophysics measurements of 106 samples from representative outcrops have been used for a comprehensive geological/geophysical study of Santiago Basin. 2.5D and 3D gravimetric m...
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Hikmet Günal, Tayfun Korucu, Marta Birkas, Engin Özgöz and Rares Halbac-Cotoara-Zamfir
A diverse topography along with deforestation, changing climatic conditions, long-term human settlement, overuse of agricultural lands without sustainable planning, cultural difficulties in accepting conservative land management practices, and wrong poli...
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