High-capacity, post-tensioned anchors have found wide-spread use, originally in initial dam design andconstruction, and more recently in the strengthening and rehabilitation of concrete dams to meetmodern design and safety standards. Despite the advances that have been made in rock mechanics androck engineering durin...
A series of laboratory tests were performed to study the mechanical behaviours of newly developed highstrength rock bolt components, including rebar, thread, plate, and domed washer. The characteristics ofdeformation and damage of each component were presented. The stress distribution of plate and domedwasher was inv...
Dynamic properties of rocks are important in a variety of rock mechanics and rock engineering problems.Due to the transient nature of the loading, dynamic tests of rock materials are very different from andmuch more challenging than their static counterparts. Dynamic tests are usually conducted using thesplit Hopkins...
The advanced tensor based concept of pore pressure-stress coupling is used to provide pre-injection analytical estimates of the maximum sustainable pore pressure change, APo for fluid injection sce- narios into generic anticline geometries. The heterogeneous stress distribution for different prevailing stress regimes...
The soil movement information over time is required for the design of foundations placed in expansivesoils. This information is also helpful for the assessment of pre-wetting and controlled wetting mitigationalternatives for expansive soils. Several researchers during the past fifteen years have proposed differentmet...
To improve mining production capacity, a stage subsequent filling mining （SSFM） method is employedfor Sijiaying iron mine. The height of the stage stope is approximately 100 m. As there are farmlands andvillages on the surface of the mine, the surface deformation should be controlled when the ore is minedout for th...
This paper presents a modified method of discontinuous deformation analysis （DDA）. In the presentedmethod, open-close iteration may not be needed, small penetration is permitted among blocks, andsprings are added between contacting block pairs only when a penetration takes place. The three contactpatterns （i.e. sl...
The effect of ISO 834 fire on the mechanical properties of granite rock specimen submitted to uniaxialloading is numerically investigated. Based on Newton＇s second law, the rate-equation model of graniterock specimen under mechanical load and fire is established. The effect of heat treatment on the mechanicalperform...
购物车(0)