نتایج جستجو برای: trenching

تعداد نتایج: 253  

Journal: :Geological Society of America Bulletin 2022

Constraining tectonic uplift history within the Tibetan Plateau is critical to understanding its deformational response continental collision. However, it difficult extrapolate orogen-scale from any single method alone. Here, we combined high-resolution deep and shallow seismic imaging (on order of 103 102 meters in depth, respectively) with geologic paleoseismic trenching several depth) Qilian...

Journal: :Journal of Geotechnical and Geoenvironmental Engineering 2022

This paper provides insight into the behavior of a stiffened caisson anchor under inclined cyclic loading in calcareous silt. A series tests was conducted beam centrifuge. monotonic test first performed, quantifying pure capacity, and then four varying mean load, amplitude, number cycles. Cyclic soil characterization T-bar were linked. Undrained led to generate excess pore pressure, resulting d...

Journal: :The New phytologist 2016
Christopher W Fernandez Peter G Kennedy

In forest ecosystems, ectomycorrhizal and saprotrophic fungi play a central role in the breakdown of soil organic matter (SOM). Competition between these two fungal guilds has long been hypothesized to lead to suppression of decomposition rates, a phenomenon known as the 'Gadgil effect'. In this review, we examine the documentation, generality, and potential mechanisms involved in the 'Gadgil e...

2010
John C. Matthews Erez N. Allouche

Over the past ten years the significance of costs burdened by parties not engaged in the contractual agreement (social costs) is gaining growing acknowledgment by city planners, municipal administrators and the engineering community. For many years the trenchless technology industry promoted the consideration of social costs in the project planning process. A key obstacle for such consideration...

1945
K. G. Joshi V. R. Dnyansagar

The usual two types of town wastes, viz. rubbish (katchra) and night-soil, are dealt with separately in their sanitary disposal. In most municipal towns in this province, katchra is stacked in heaps above ground, and near the outskirts of the town. Our observations have shown that it is as much a source of fly nuisance as the night-soil, but very little attention is paid to its sanitary disposa...

1997
P. S. Schenker E. T. Baumgartner S. Lee

Robotic exploration of the Martian surface will provide important scientific data on planetary climate, life history, and geologic resources. In particular, robotic arms will assist in the detailed visual inspection, instrumented analysis, extraction, and earth return of soil and rock samples. To this end, we are developing new robotic manipulation concepts for use on landers and rovers, wherei...

2003
Vineet R. Kamat Julio C. Martinez

The presented work extends the state-of-the-art in scientific simulation-driven 3D construction process visualization. We present a tool, ViTerra that engineers can use to automatically generate photorealistic, digital, 3D terrain CAD databases to represent construction jobsites in visualizations of discrete-event construction simulations. The work capitalizes on the availability of detailed to...

ژورنال: علوم آب و خاک 2016
حسینی, علیرضا, شفاعی بجستان, محمود,

Assessing the root system and its tensile strength is necessary for determine the impact of roots in increasing the soil shear strength. The present study aims to investigate effects of slope and flow of riverbank on root system of riparian POPULOYS trees. In a relatively direct interval, 6 riparian POPULOYS trees were chosen on the slope of Simereh riverbank. To assess the root system, the cir...

Journal: :Remote Sensing 2023

The Wudaoliang–Changshagongma fault is one of the NW-trending faults located within southern Bayan Har Block Tibetan Plateau in China. In this paper, we used high-resolution imagery and digital elevation model data to study geomorphological geological characteristics fault. Furthermore, result also determined trace estimated average horizontal slip rate since late Quaternary have been 2.6 ± 0.6...

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