In the study

evolution laws of the roof structure were first investigated based on the principle of gob-side entry retaining formed by roof cutting and pressure release. Subsequently

stress and displacement transfer mechanisms of the surrounding rocks around a thick-seam fast-extracted mining face were discussed. Correspondingly

an active stability control approach for the entry surroundings was proposed by building a rock-steady structure using the upper strata of the main roof

bulking gangues at the gob and cutting cantilever of the entry roof. According to the deformation characteristics of the entry surroundings

we designed a series of cooperative supports with characteristics of constant resistance and pressure release. Particularly

the roof was supported by the constant resistance and large deformation anchor cable and pier-type unit. The gangue rib was stabilized by the sliding-type side wall prevention structure

self-advancing dynamic pressure bearing device and side wall prevention bolt with multi-resistances. Finally

industrial field tests were conducted in S1201 haulage entry of Ningtiaota coal mine for the first time. The results indicated that with increasing mining height and accelerating mining speed

a small amount of rotational deformation occurred inevitably owing to the movement of the main roof. Moreover

this deformation was not suitable to be supported compulsorily

and should be better coordinated by building a rock-steady structure artificially. The motion state of the gangues was closely related to the roof pressure

and thus an enhanced presplitting helped to reduce impacts of the dynamic mining pressure. Field monitoring results showed that the roof pressure first reached the constant resistance

and then the displacement tended to be stable. Finally

the rock-steady structure of the entry surroundings was formed. It was verified that the designed support structures could effectively coordinate with the movement of the surrounding rocks

and the indexes of the retained entry met requirements of the next mining panel.