Study On Algorithm For Using Prestressed Anchor Reinforced Existing Retaining Bolt

Existing retaining bolt after a period of using, because of the changed conditions, or existing retaining bolt in construction process factors such as the quality problems, will cause the retaining bolt actual has provided support insufficient, slope stability safety coefficient can not reach the requirements, the need for reinforcement.Although rock-soil anchoring technology for the first time the theory of slope supporting relatively mature and rock-soil anchoring techniques in slope engineering, deep foundation pit engineering, the underground engineering and mining engineering projects got unprecedented extensive development, but because we both anchoring construction to reinforce the importance of understanding the shortcomings and problems existing rock-soil anchoring engineering strengthening the particularity and complexity, the theory of both anchor engineering strengthening research is relatively lags, no matter from theoretical calculation and design method and the original structure of utilization, etc, the relative research rarely. So I try to reinforce existing anchoring construction theory research, both its necessity, also have the forward-looking iridology, is a very value academic research subject.This paper combining of anchor supporting relatively mature debut theoretical research and experimental conclusion with prestressed anchor, aiming at strengthening of both the retaining bolt specific problems, and in-depth analysis of the new prestressed strengthening anchor and former anchor interaction and on the slope rock mass, the reinforcement mechanism based on the deformation of the old bolt by harmonize condition of the reinforcement, establishes the calculation model of FLAC program, and through numerical simulation calculation model to analysis, the calculation model to adjust, puts forward the practical prestressed anchor for strengthening design calculation method. This paper will eventually the design and calculation method applied to both an anchor retaining wall, which reflects the examples of reinforcing the practicality of this algorithm...