Acute lumbar sprain is commonly encountered among the young and middle-aged. It often occurs at the lower part of the back, which seriously hinders the daily life and work of the patients because of the severe pain. T...Acute lumbar sprain is commonly encountered among the young and middle-aged. It often occurs at the lower part of the back, which seriously hinders the daily life and work of the patients because of the severe pain. The author has treated 43 cases of acute lumbar sprain by needling Weizhong (BL 40), Houxi (SI 3) and Yaotongdian (EX-UE7) plus kinesitherapy and obtained satisfactory therapeutic results. A report follows.展开更多
Based on the research method of combining simulation analysis with field testing by distinct element process UDEC, we have analyzed the roof deformation and failure laws and roadway support technology of gob-side entr...Based on the research method of combining simulation analysis with field testing by distinct element process UDEC, we have analyzed the roof deformation and failure laws and roadway support technology of gob-side entry retaining in a thin seam with a large inclined angle. The results show that during exploitation in seams with large inclined angle, rotational subsidence of the main roof under the gob area is small and can maintain balance, so there is no need to provide artificial permanent support resistance for the main roof near the upper side to control rotational subsidence. Obstructed by the dense scrap rail,waste rock from the immediate roof caving slides from the upper gob area to the lower area and fills it,which strikes a balance between the immediate roof under the goaf after it fractures into large pieces and filling waste rocks.展开更多
文摘Acute lumbar sprain is commonly encountered among the young and middle-aged. It often occurs at the lower part of the back, which seriously hinders the daily life and work of the patients because of the severe pain. The author has treated 43 cases of acute lumbar sprain by needling Weizhong (BL 40), Houxi (SI 3) and Yaotongdian (EX-UE7) plus kinesitherapy and obtained satisfactory therapeutic results. A report follows.
基金Financial support for this work was provided by the National Natural Science Foundation of China(No.51104176)
文摘Based on the research method of combining simulation analysis with field testing by distinct element process UDEC, we have analyzed the roof deformation and failure laws and roadway support technology of gob-side entry retaining in a thin seam with a large inclined angle. The results show that during exploitation in seams with large inclined angle, rotational subsidence of the main roof under the gob area is small and can maintain balance, so there is no need to provide artificial permanent support resistance for the main roof near the upper side to control rotational subsidence. Obstructed by the dense scrap rail,waste rock from the immediate roof caving slides from the upper gob area to the lower area and fills it,which strikes a balance between the immediate roof under the goaf after it fractures into large pieces and filling waste rocks.
