نتایج جستجو برای: trenching

تعداد نتایج: 253  

Journal: :Tectonics 2021

We present the results of a paleoseismic survey Incapuquio Fault System, prominent transpressional fault system cutting forearc South Perú. High-resolution Digital Elevation Models, optical satellite imagery, radiocarbon dating, and trenching indicate that at least 2–3 m net slip occurred on generating complex, ∼100-km long set segmented scarps in early 15th century (∼1400–1440 CE). interpret c...

Journal: :Soil Research 2021

Context Compaction removal and organic amendment application are commonly used to mitigate the compaction-induced declines in crop yield, soil carbon (C) health. However, response of microbial activities nutrient pools combination mill-mud amendments decompaction profile not fully understood. Aims A field trial was conducted at Burdekin, Australia, investigate effects different managements on c...

Journal: :Scandinavian Journal of Forest Research 2022

Various site preparation methods are used in Swedish forestry. However, some can lead to unnecessary disturbance, which could be avoided by using variables from digital elevation models management decisions. The current study aimed investigate how different methods, and their intensities, affect Norway spruce (Picea abies (L.) Karst.) regeneration. Additional aims were clarify these soil distur...

Journal: :Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State 2008

I. Rassa K. Shabani M. Momenzadeh N. Nezafati

The Tareek Darreh gold deposit is located 40km north of Torbat-e Jaam in the Khorassan-Razavi province, NE-Iran. The study area mainly comprises slightly metamorphosed, sedimentary rocks of Jurassic age including alternation of shale, siltstone, and sandstone. These rocks have been intruded by plutonic rocks such as gabbro-norite, diorite, quartz-diorite, and rhyodacite. The ore bodes are expos...

A. A. Mirghasemi F. Eslamian M Heidarzadeh Seyed. Majdedin Mir Mohammad Hosseini

A sodium silicate-based chemical grout was used in the Karkheh dam site in order to examine the performance of the chemical grouting technique for stabilization of the dam's filter material. Karkheh, an embankment dam with the reservoir capacity of about 7.4 billion cubic meter at the maximum water level, is the largest dam in Iran. The grouting works performed at the dam site, were part of the...

2017
P. Michaels

The addition of passing lanes has been a long standing need on Idaho Route 55. This narrow, winding road is one of the few routes that links Boise, Idaho, with destinations to the north. The roadway is bounded by a steep rising slope on the east, and a precipitous drop to the Payette River on the west. Additionally, the area is known for landslide hazards. Given these hazards and uncertainties ...

Observing destroyed engineered structures and induced fatality due to faulting motivated engineers to consider possible solution for reducing damage to structures. Mitigations countermeasures should be applied when elusion is not possible. Finite element analyses verified through centrifuge model experiments is implemented in this study. Considering different fault dip Angel, critical position ...

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