Positioning Performance in Deep Pit Mines using GNSS Augmented with Locata

2021 ◽  
Author(s):  
Maria J. Evans ◽  
Sean Evans Eagen
Keyword(s):  
Deep Pit

Dynamic Compaction and Compaction Grouting for Dewatering in Pit

2012 ◽  
Vol 170-173 ◽  
pp. 789-792
Author(s):  
Shu Li Wang ◽  
Dun Wu Chen ◽  
Man Gen Mu ◽  
Yao Yu Zhang
Keyword(s):  
Porous Media ◽  
Flow Control ◽  
Groundwater Flow ◽  
Case Studies ◽  
Dynamic Compaction ◽  
Fill Soil ◽  
Compaction Grouting ◽  
Recent Advances ◽  
Deep Pit

China University of Geosciences (Beijing) has developed a dynamic compaction and compaction grouting (DCCG) method for groundwater flow control in Dalian. This method has been proven effective in dramatically reducing permeability in plain fill soil, and in granular or porous media. It has been successful used in many applications dealing with deep pit by coast. This paper presents the DCCG that has particular relevance in today’s pit construction marketplace by coast. Permeability can be improved by means of the DCCG. A brief introduction to the technique is followed by discussion of recent advances, illustrated by case studies of applications

scholarly journals Lab-assay for estimating methane emissions from deep-pit swine manure storages

2015 ◽  
Vol 159 ◽  
pp. 18-26 ◽  
Author(s):  
D.S. Andersen ◽  
M.B. Van Weelden ◽  
S.L. Trabue ◽  
L.M. Pepple
Keyword(s):  
Swine Manure ◽  
Methane Emissions ◽  
Deep Pit

Survey on foaming deep-pit swine manure

2013 ◽  
Author(s):  
Neslihan Akdeniz ◽  
Larry D Jacobson ◽  
Charles J Clanton ◽  
Brian P Hetchler
Keyword(s):  
Swine Manure ◽  
Deep Pit

Trace element uptake by two British Columbia forages as affected by poultry manure application

1991 ◽  
Vol 71 (3) ◽  
pp. 305-312 ◽  
Author(s):  
A. A. Bomke ◽  
L. E. Lowe
Keyword(s):  
Dry Matter ◽  
Field Experiments ◽  
Clay Soil ◽  
Poultry Manure ◽  
Yield Response ◽  
Silty Clay ◽  
Manure Application ◽  
Deep Pit ◽  
Loam Soil ◽  
Trace Element Uptake

Field experiments evaluated yield response to deep-pit poultry manure application to barley on a clay soil near Prince George and a grass-legume forage on a silty clay loam soil near Chilliwack, B.C. Substantial dry matter yield increases were measured at manure applications up to 20 t ha−1. Subsamples of both crops and the poultry manure were analyzed for Cu, Zn, Mn, Ba, Pb, Ni, Cr, Cd, B and Co. Selenium analyses were made on selected crop samples. There were no indications of toxicity problems even at 40 t ha−1, the highest application. Copper and Zn concentrations in forages were increased by the poultry manure and the Mn/Cu ratio tended to decrease with manure application. Key words: Orchardgrass, ladino clover, barley, micronutrients

scholarly journals Analysis of the applicability of the method for assessing the predicted maximum settlement of the surrounding building development in the engineering and geological conditions of St. Petersburg

2021 ◽  
Vol 18 (3) ◽  
pp. 84-91
Author(s):  
A. V. Kvashuk ◽  
◽  
T. D. Dautova ◽  
Keyword(s):  
Software Package ◽  
Empirical Method ◽  
Maximum Settlement ◽  
Deep Pit ◽  
Geological Conditions ◽  
Zone Of Influence ◽  
Semi Empirical

The article considers the methods for calculating the predicted maximum settlement of buildings in the zone of influence of a deep pit in the conditions of St. Petersburg. There have been analyzed the results of calculations of the predicted maximum settlement by the semi-empirical method developed by Professor N. S. Nikiforova with the settlement values obtained in Plaxis 2D software package. The authors present the evaluation of the possibility of applying a semi-empirical method for determining the predicted settlement of the surrounding building development in the engineering and geological conditions of St. Petersburg.

Numerical Simulation Analysis for Enclosure Piles Cracking of a Deep Pit Foundation

2011 ◽  
Vol 109 ◽  
pp. 276-280
Author(s):  
Ji Chao Zhang ◽  
Yong Kang Yang ◽  
Yong Xu
Keyword(s):  
Numerical Simulation ◽  
Simulation Analysis ◽  
Element Model ◽  
Wind Load ◽  
Load Direction ◽  
Foundation Pit ◽  
Deep Pit ◽  
Disadvantageous Factors ◽  
Construction Condition ◽  
The Finite Element Model

Based on the appearance of crack of enclosure piles on a foundation pit, Midas GTS is adopted to establish the finite element model. Through the numerical simulation, the influence of the direction of wind load, wind scale and prestress of anchor are analyzed, the worst wind load direction, unfavorable construction condition, maximum moment of enclosure piles are ensured, crack width in different disadvantageous factors are calculated, which provides a guide for continuous construction.

Deep pit repairing of nodular cast iron by laser cladding NiCu/Fe-36Ni low-expansion composite alloy

2019 ◽  
Vol 151 ◽  
pp. 273-279 ◽  
Author(s):  
Yongjian Li ◽  
Shiyun Dong ◽  
Shixing Yan ◽  
Enzhong Li ◽  
Xiaoting Liu ◽  
...  
Keyword(s):  
Cast Iron ◽  
Laser Cladding ◽  
Nodular Cast Iron ◽  
Composite Alloy ◽  
Deep Pit

scholarly journals Pollen-Analysis Investigation of a 20 m. Firn Pit on the Kesselwandferner (Ötztal Alps)

1966 ◽  
Vol 6 (44) ◽  
pp. 233-236 ◽  
Author(s):  
W. Ambach ◽  
S. Bortenschlager ◽  
H. Eisner
Keyword(s):  
Pollen Analysis ◽  
Mineral Dust ◽  
Late Summer ◽  
Dust Content ◽  
Analysis Methods ◽  
Deep Pit ◽  
Pollen Content ◽  
Small Pollen

AbstractFirn samples from a 20 m. deep pit were examined by pollen analysis methods in order to confirm the stratigraphy of the annual net accumulation back to 1949. The late summer horizon separates the overlying winter layer with a small pollen content from a firn layer with a large pollen content. There are also differences in the spectra of the species which enable a seasonal separation of the layers. In addition, the mineral dust content was examined.

<i>Evaluating of Products for Mitigation of Odor and Reduction of NH3, H2S, GHG, and VOC Emissions from Swine Manure in Deep Pit Storage Structures</i>

2020 ◽  
Author(s):  
Baitong Chen ◽  
Jacek A Koziel ◽  
Chumki Banik ◽  
Hantian Ma ◽  
Myeongseong  Lee ◽  
...  
Keyword(s):  
Swine Manure ◽  
Voc Emissions ◽  
Deep Pit ◽  
Storage Structures
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