Combining conformation stress of region, developing characteristic was studied and ruler of mine exposure practically small middle fault age was presented, result of the west fault age and fall combine, that region shearing strength combined hypo-stair shearing strength effect result of nearly parallel motion, was gotten marked economical benefit was obtained.

On the basis of collecting a large number of geologic materials, the development features and distribution laws of middle and small fault structures in Dongjiahe coal mine are studied.

2 in Xiayukou Mine as the object of study, this paper studied the relationship between the media parameters of coalbed and small faluts in coabed, determined four main factors controlling small faults in the coalbed No.

Identification of minor fault and its applications;

Aiming at hysteretic water bursting at the west belt way in Danhou mine, on the basis of analyzing the hydrogeologic data synthetically, the mechanism of hysteretic water bursting caused by minor fault was studied, the cause of hysteretic water bursting was analysed, and the countermeasure about preventing and treating O.

Took a 3D seismic data body in Shanxi as example,used the Geoframe software to calculate coherent body,the geological problems of minor fault and subsided column in coal geological exploration were settled.

Gas-gushing control of small faults in Renlou Coal Mine;

The quantitative prediction of number and possible distribution and seepage evaluation of small fault have important roles in the exploration and development for complex faulted reservoirs in the oilfield, eastern China.

And some research on problems of small fault, small fold, character of roof rock,seam and so on are analyzed in order to strengthen technological management and realize high production and efficience of coal face.