نتایج جستجو برای: ground surface settlement
تعداد نتایج: 776799 فیلتر نتایج به سال:
Underground cavities can develop below structures, leading to ground settlement and hindering the development of urban infrastructure. Soil flow protectors (SFPs) have been developed prevent alleviate problems due formation such cavities. In this study, we performed scaled model experiments a design method for an SFP with adequate safety factor under different installation lengths its upper low...
The standard application of multi-temporal, Persistent Scatterer (PS) synthetic aperture radar differential interferometry (DInSAR) techniques to the Caramanico area posed considerable problems linked to the low density of PS [1]. The application of an optimised PSI approach [2], together with an alternative, classification-based PS candidate detection method [3,4], allowed obtaining sets of PS...
The landscapes of the Near East show both the first settlements and the longest trajectories of settlement systems. Mounding is a characteristic property of these settlement sites, resulting from millennia of continuing settlement activity at distinguished places. So far, however, this defining feature of ancient settlements has not received much attention, or even been the subject of systemati...
Reducing the settlements of soft foundation effectively is a critical problem of high-speed railway construction in China. The new CFG pile-slab structure composite foundation is a ground treatment technique which is applied on CFG pile foundation and pile-slab structure composite foundation. Based on the experience of constructing Beijing-Shanghai high-speed railway in China, the settlement-co...
Shield tunneling is widely used in urban subway tunnel construction. Old underground pipelines generally have small leakages that are difficult to find. The water leakage significantly reduces the stability of stratum, posing a threat safety shield Therefore, this study established 2D and 3D calculation models for analyzing law diffusion ground under pressure, influences pipeline range length o...
Radon concentration was measured in ground floor of two buildings with moisture controlled sub slab construction and slab on the ground. Results show that radon concentration in ground floor of the building with moisture controlled sub construction is more than 11 times smaller than that of the building with slab on the ground. Also indoor radon concentration in this building is about %41 highe...
Reinforcement of pit bottom soil has been utilized in subway deep foundation-pit engineering soft-soil areas. This study proposes an improved excavation model to better investigate the effect reinforcement at a on deformation subway’s foundation pits. The strength parameters reinforced could be obtained through cone penetration test before and after pit-bottom-soil reinforcement. results show t...
Barnacle cyprids exhibit a complex swimming and exploratory behaviour on surfaces and settlement is a consequence of extensive surface probing and selection of suitable settlement sites. In this work, the behaviour of cyprids in their pre-settlement phase was studied by three-dimensional video stereoscopy. With this technique, three-dimensional trajectories were obtained that were quantitativel...
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