Common anchor load tests include pullout tests performed on sacrificial preproduction anchors and creep performance and proof tests performed the production anchors.
通用锚杆荷载试验包括对保护性试制锚杆进行的拉拔试验以及对锚杆成品进行的徐变、性能和验证试验。
2
Load type bearing and oil seal device, and a sound proof clapboard, can effectively prevent the vibration and noise, ensures the processing object is not polluted by oil.
重荷型轴承及油封装置，并有防音隔板，能有效地防止震动和噪音，确保加工物不受油脂污染。
3
This paper considers influence of proofload, structures age and re-service term to the reliability index on the basis of formula given.