Force Analysis Of Fixed Pier Heating Pipes Buried

Heating burying pipe and trench laying pipe construction cost compared with low heat loss, corrosion resistance, long life, small footprint, fast construction and other features, has great advantages, and significant social and economic efficiency and energy efficiency, are widely used. At the same time, along with the expansion of city size, central heating systems also tend to large-scale, resulting in large diameter, high pressure piping used more and more common.This broke the "rules" of the constraints on the large-diameter, high pressure pipes to do stress analysis to derive a fixed heating pipes buried Piers formula. Reference Cui Xiaobing formula for the oil pipeline, combined with the characteristics of heating pipe itself, considering the "design thrust," "License displacement" and "torque" three to calculate the index, derived heating pipes buried calculation fixed Piers formula. While at anchor in the dead are given a fixed pier design torque and tangential force is calculated and the displacement of a fixed pier in the design of torque and torsion angle formula.Detailed analysis of buried pipelines by the level of the fixed pier load, vertical load, torque, shear force and torsion angle formula. Horizontal loading include:thermal expansion, unbalanced pressure, earth pressure (passive earth pressure, the active earth pressure and earth pressure at rest), the fixed pier and back to fill the friction reaction force compensator and fixed pier axial displacement force; vertical overburden loads, including gravity and traffic load.The four commonly used mechanical model of a typical fixed pier conducted in-depth research. By analyzing the fixed Piers process, this paper buried pipe fixed Piers formula, in addition to including the axial thrust, but also including torque, shear force and torsion angle formula.VB programming using a "fixed pier buried pipe stress calculation software", the software is simple, easy to use. Calculated using the software under various combinations of the fixed pier axial thrust, torque, twist and shear force and other factors. Used for all types of engineering and technical personnel, while chapter analyzes several existing domestic central heating system, pipes for the force calculation software.Analysis of "fixed pier heating pipes buried computing software" feature, the software pipeline buried in the calculation of heat stress on fixed anchorage design method is more comprehensive, reasonable, and fully considered the impact of buried pipeline all the force of the fixed pier factors. The software covers high pressure, large diameter pipeline design elements, can be straight, elbow, knuckle, compensation and fixed Piers design checking; The software has easy to use, clear interface, etc., for different failure means the failure is given to determine the corresponding output items and design reference, you can force designers to optimize the design of guidance.Cited the impact of the fixed pier force the main factors. In the heating system design, the influence of different factors can be calculated according to fixed Piers, and buried pipes can be fixed by means of heat calculation software engineering pier fixed Piers.Central heating energy to achieve the construction of an urban infrastructure.