According to such special geological conditions,the ZY5000/14/23 shield-type powered support is developed and provides new type of powered support for roof supporting for close-distance coal-seam mining under "two hard" conditions.
At the same time, technology and result analyse of deep well precipitation and stepdown aiming to the special geology condition that the stratum of Huangxing road station is cut by old river course and two storey undertake-water act together is introduced in this article.
12 pier platform of No. 4 Dongjiang Bridge cross Huizhou Road,it introduces design & constructive process of steel board pile coffer of low pile platform in special geology of sandy land. Application of this technology shortens working period and assure constructive quality, which gains better result.
According to the special geology of the project,this paper makes use of the compound foundation of CFG pile and design the section as wedge model,so it cuts down the cost and obtains better social and economic benefit.
Article through old coal bunke of mining area remould and fast construction synthesize technology research and practice,discuss public method and public technique about old coal bunke of mining area broaden of the special geology condition,special technique about eccentric coal bunker put to use directional [directed] blasting,likeness condition public of coal bunker can use the experience this technology.
This paper discusses the special geologic and hydrogeologic conditions in the Nanhe River drainage area, where we tries to work out the local atmospheric precipitation equation by using the analytical data of stable isotopesδD and δ18O of surface water and underground karst water.
It introduces the man made holey pouring pile in under ground with seepage and in quicksand and discusses the project survey & selection of constructing acts as well as that costs shall be reduced by adopting man made holey pouring pile under special geologic conditions is pointed out.
Because of the special geologic structure of the location of the Bridge of Binzhou on the Yellow River, in order to meet the need of load, the design was changed to ultradeep pile, that is 120 meters in length and 2 meters in diameter.
This paper study and analyse main and abjective cause of collapsing and slanting support in workface under special geological condition,it describes in detail occuring several situation and preventive measures of collapsing and slanting support,from mechanics and mining angles,takes measures to prevent collapsing and slanting support.
Generally, varves can be found in the sediments of maar lakes because of their special geological and hydrological environment.
As a special geological phenomenon, the character of collapsible loess foundation is collapsible when penetrated by water.
Because of the special geological conditions of the eighth zone in the Tahe oil field, we apply seismic data structure characteristics to hydrocarbon prediction for the Ordovician reservoir in this zone.
It is the product of basin evolution at special stage in a special geological setting.
The results of power spectral analysis enable geochemists to group elements on the basis of the distribution of their change periods, and to interpret some special geological and geochemical situations.
Special geologic targets of the M?ssbauer investigation are dust collected by the Athena magnets and interior rock and soil surfaces exposed by the Athena Rock Abrasion Tool and by trenching with rover wheels.