Otherwise, the hole is undrillable except when applying wellbore strengthening technology (Alberty and McLean 2004; Zhang et al. 2016).
Two well documented limitations to the strengthening technology though are premature FRP debonding failure and non-ductile member behaviour.
It is well documented that flexure and shear strength of RC beams has been improved using NSM strengthening technology applied with epoxy adhesives.
Aiming at failure of closure segment in a prestressed concrete cable-stayed bridge, a strengthening technology, namely replacing the closure segment, was firstly put forward.
Other key points in the strategy include removing the obstacles to the mobility of researchers, strengthening technology transfer within universities, increasing business expenditure on R&D to €2.5 billion by 2013, and promoting collaboration with scientific colleagues in Northern Ireland.
Results showed that the fatigue failure mode, fatigue damage mechanism, anti-fatigue optimization design, and fatigue strengthening technology of CFST joints are more complex than those listed in fatigue design guidelines or specifications.
The hole cold expansion technology has been widely used in manufacturing and repairing of both fighters and commercial aircraft, and has become a research hotspot in the strengthening technology.
Analysis on safety of removing the old closure segment constituted the important part of the strengthening technology of replacing the closure segment, and became the theoretical basis of removing partial structural members for existing bridges.
In particular, we highlight that the socio-technical perspective of fossil fuel subsidies offers new intervention points for subsidy reform and that policy designs and assistance should strengthen technologies and actors that are most likely to destabilize the fossil fuel subsidy regime.
This will strengthen technology spillover, and thereby enhance technology innovation.
