Foundation pit monitoring can only provide feedback regarding the deformation of formation and envelope structure after construction, it is difficult to predict law a continuous underground wall in later stage grain silo support. Taking deep foundation an as example, this paper uses Abaqus software simulate force project, explores calculation results planar elastic beam considering arch effect ...

Enset (Ensete ventricosm) is a multipurpose crop serving millions of Ethiopians as an alternative food source. However, the traditional kocho preparation labor-intensive and results in poor quality. This study evaluated Purdue improved storage (PICS) bag to underground pit for fermentation. The experiment was arranged factorial design with two fermentation systems (underground PICS bag) three t...

Underground mining under an open-pit slope results in movement and instability of rock masses. However, most mass prediction methodologies are empirical only suitable for underground mining. In this paper, a new theoretical methodology is proposed to predict the masses caused by mining, combining two influences, slopes Considering influence open pit on damage patterns, double-slip surface defle...

in this study, a hybrid intelligent model has been designed to predict groundwater inflow to a mine pit during its advance. novel hybrid method coupling artificial neural network (ann) with genetic algorithm (ga) called ann-ga, was utilised. ratios of pit depth to aquifer thickness, pit bottom radius to its top radius, inverse of pit advance time and the hydraulic head (hh) in the observation w...

21 kilometres north of Stewart (Figure 2-IZ-l), on the east The Silbak Premier mine is in northwest British Columbia, side of the Salmon River Valley. The original discovery of a that from 1918 to 1953 produced 4.3 million tonnes of ore high-grade vein in 1910 culminated in an underground mine grading 14.6 grams gold and 304 grams silver per tonne from sulphide-bearing stockworkveins and brecci...

This paper takes the deep foundation pit project of Lanzhou Hospital Traditional Chinese Medicine as background. The design and construction is relatively difficult due to complex environment around pit, dense surrounding buildings, underground soil layer influence groundwater on pit. In order detect problems in process, was monitored real time through an automated monitoring system for whole p...

Oil shale is a kind of potential alternative energy source for petroleum and has attracted the attention of energy researchers all over the world. Borehole hydraulic mining has more prominent advantages than both conventional open-pit mining and underground mining. It is very important to attempt to use the borehole hydraulic mining method to exploit underground oil shale. The nozzle is the key...

With the development of economic construction, underground space development continues to move towards the deep. "More, long, big, deep," will be the general trend of the development of underground engineering in the 21st century. Rock burst is a kind of sudden geological disasters with a higher frequency in deep tunnel construction. Rock burst prediction has very important significance for the...

abandoned surface mine excavations can be a major environmental, social and/or human healthproblem for the mining industry as well as for the community living nearby. this problem is exacerbated by therapidly growing population encroaching on areas of historic mined lands. the aim of this studywas to assess thesafety status of the historic nyala mine excavation with the purpose of coming up wit...

It is important that the strategic mine plan makes optimum use of available resources and provides continuous quality ore to drive sustainable mining profitability. This requires development a well-integrated strategy options for surface and/or underground their interactions. Understanding current tools methodologies used in industry transitions planning are essential dealing with complex deep-...