Rectangular Pipe Jacking Construction Analysis Of The Influence Of The Neighboring Buildings

In recent years the development of city construction in China ushered in the peak, thenalso led to a massive underground engineering construction, underground tunnel excavation isincreasing. In busy urban areas to an underground tunnel excavation, need comprehensiveconsideration of factors, the ground of the dense buildings, underground pipelines, willseriously affect its construction. So, the traditional open cut method has obvious limitations,difficult to meet the needs of the development of cities. In order to meet the needs of thefurther development of urban construction, the birth of rectangular pipe jacking constructionmethod. While using rectangular effective usable floor area is bigger, but for soil disturbancewill be bigger, stronger effect on the adjacent building also.This article through to a crossing rectangle pipe jacking construction simulation analysisof rectangular pipe jacking construction influence on adjacent buildings, get some meaningfulconclusions. The main content is divided into the following:(1) to analyze the rectangular pipe jacking construction technology characteristics,discusses the rectangular pipe jacking construction disturbance characteristics of surroundingsoil mass and adjacent buildings.(2) in view of the pipe jacking construction in China building evaluation standard ofblank, bending and deformation control of the tilt through the establishment of buildingpermits the surface subsidence and the soil loss rate standard, judge whether the pipe jackingconstruction produces damage to adjacent building, to determine the damage of the buildings.And evaluation standard took into account the different types of building structure type andfoundation calculation is relatively simple, look-up table to determine the allowable soil pipejacking construction loss rate and degree of structural damage, easy to use by engineeringpractice.(3) introduction to the basic theory of finite element analysis and the realization of thepipe jacking construction in finite element simulation software principle, through the crossingrectangle pipe jacking construction simulation, this paper analyzed the influence on adjacentbuildings, rectangular pipe jacking construction at the same time comparative construction tothe influence of building pile foundation and independent foundation building.(4) the risk of pipe jacking construction on adjacent buildings, starting from the projectrisk identification, in view of the possible risk, construction control measures are put forwardand the structure of the reinforcement protection measures, so as to better control the risk ofloss. On nearby buildings in the process of pipe jacking jacking protection should be given priority to with active control measures, combining real-time monitoring measures at thesame time, according to the actual situation in a timely manner to take appropriate measuresto pipe jacking construction to minimize the impact on adjacent buildings.