Since August, 1998, Xinjiang area began the measure of soil layer bore stress.
自1998年8月起，新疆地区开展土层钻孔应力测量，先后建成7个台。
Since August, 1998, Xinjiang area began the measure of soil layer bore stress. It was successively completed 7 stations.
自1998年8月起，新疆地区开展土层钻孔应力测量，先后建成7个台。
Improvement of the processing precision can help to improve the contact state between wheel seat and wheel hub bore, reduce the maximum residual pull stress in wheel seat due to press mounting.
提高加工精度有利于改善轮座和轮毂孔接触状态，降低轮座因压装产生的最大残余拉应力。
This paper proposes that Poisson's ratio of rock mass and in-situ stress are directly determined using optimization method according to measured strains obtained from bore hole stress relief process.
本文根据孔壁应力解除法获得的量测应变，提出了采用最优化方法直接确定岩体的泊松比和原始地应力。
The results showed that tensile strength, tensile yield stress and tensile breaking stress were increased with the increase of bore distance;
结果表明，随筛板孔距的增加，其拉伸强度、拉伸屈服应力及拉伸断裂应力均提高；
The experiment showed that screws near the fracture line at both ends bore more stress, therefore, easily causing fracture. Corresponding measures were suggested.
根据实验结果中靠近骨折线两端的螺钉所承受的应力较多、较易引起断裂的情况，提出了相应的措施。
The experiment showed that screws near the fracture line at both ends bore more stress, therefore, easily causing fracture. Corresponding measures were suggested.
根据实验结果中靠近骨折线两端的螺钉所承受的应力较多、较易引起断裂的情况，提出了相应的措施。
应用推荐