Different Control Schemes Study on Landslide with Underground Crossing Pipeline

With the progressive proceeding of energy pipeline construction, long-distance petroleum and natural gas transmission pipelines were designed to pass through the mountain area of Midwest China, part of them have been threatened by severe landslide hazard. Therefore, the effective control scheme for the exiting pipelines across landslide area has been increasingly interested. A typical landslide in Western China area was taken as an example, from which the interaction model of landslide and pipeline was performed. On the base of the landslide characteristics analysis and numerical modeling, two kinds of typical control schemes, including anti-sliding piles and anchors supporting, were presented to carry out a comparative analysis and evaluation for landslide control. The results show that the scheme involving anti-sliding pile is the better scheme, whose cost and technical requirement are lower than that of anchors supporting scheme in the aspects of cost and the feasibility of construction. This study can provide a scientific basis for the optimal control scheme determination for the landslides with pipeline underground crossing in Western China.