The safety control and the construction of double joined arch of tunnel exit under complicated geological condition
This paper discusses geological characteristics and geological condition of forming ore of Xiao-Xi -Nan-Cha copper-gold mine and the time-based control relations between quartz-diorite and gold mine.
Through the investigation on climate, geological condition and human activity of Yongding River Basin, the origin of wind-sandy land in Yongding River Basin was analyzed.
The geological condition in the inlet of spillway tunnel of Hengquan Reservoir is very complex,rock wheathering is severe and the stability of adjoining rock of tunnel is bad.
On application of bored pile in complicated geological conditions
Complicated geological condition fabrication cost of foundation works control;
The cause of deviation of driving with TBM in Qinling Tunnel is the difficult geological condition.
Abstract: Taking the geological condition of the Baiyunebo main iron mi ne as the b ackground, the paper deeply analyzes the engineering geological characteristics o f the mine stope.
We fully considered the influences of wave front diffusion, geological condition, designed the amplitude-preserved operator which can eliminate the effect of receivers and propagation.
The results of the analysis show that the rock-socked pile posses the loading behaviors of friction pile or end bearing pile, which is dependent on geological condition and design methods.
The geological conditions of Liguo mining area, the geological properties of Tongshan iron ore deposit and the types & features of Tongshan iron ore are explained.
The paper summarizes the engineering geologic and hydrogeologic condition along the Shanghai Chongming Tunnel and analyses the unfavorable geological condition and its solution in the site.
Chuxiong basin is a typical reformed basin, which formed during Mesozoic-Cenozoic periods in south of China and has good petroleum geological condition.
Abstract: : the geological condition of flood control embankment foundation is complex and changeable, and the upper part of the structure also needs to change according to the different purposes.
Research on holing through technique of the shield machine on the ⑤_2 level geological condition
The Palaeozoic petroleum geological condition of Huabei area had been analyzed in detail from the petroliferous system angle.
It is important to ascertain geological condition in a coal face or a mine area before mining, so as to secure a high output and high profit mine in safety production.
The hydrological geological condition is the main factor for CBM preservation and excess pressure formation.
Mineralization geological condition of the Shimen Area in Zhenghe County is favorable for Au-polymetallic deposit, which has prospect well to find Au-polymetallic ore deposits.
The geological conditions of the Shandong Peninsula arc similar to the geological features of the marine gold placers in the world.
The paper demonstrates and analyses the engineering geological condition of the dam, and concludes that the condition for dam construction is good, and the gravity dam is better than the arch dam.
Coal formation strata is one of the basic geological condition for occurrence and form of Mingshui spring group.
Panbei Coalmine is in construction, so it is with significance to study the geological condition.
The shield TBM is regarded as an effective tool during construction under soft geological condition, which has a history of 30 years in China.
High efficiency coal mining technology used under complicated geological conditions
Geological characteristics and metallogenic geological conditions of the Liugou gold deposit in Xihuashan,Ningxia
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