Analysis of Settlement Observation Method of Pipeline Crossing High Grade Highway
Based on the background that the gas pipeline of a city recycling industrial park pass through the Beijing-Taibei expressway,the influence of horizontal directional drilling on the settlement and deformation of highway subgrade and the corresponding monitoring method are studied.Learn from the deformation prediction and calculation method of the surface pipe technology on the surface,and use the Peck formula to calculate the maximum settlement and impact area of the road base,and determine the deformation monitoring accuracy level according to the Code for Deformation Measurement of Building and Structure(JGJ 8-2016).Combined with the actual engineering actual situation design the layout point of the observation point of the designed settlement,determine the monitoring frequency and observation method according to the characteristics of the construction,and summarize that should be paid attention to in the process of settlement observation and the differences with general building settlement observation are determined.Finally,the rationality,feasibility and improvement of the settlement observation scheme were tested by actual measurement,and effectively verify the applicability of the Peck formula.
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