Research And Application Of Foundation Pit Support Engineering Design And Construction Technology In Complicated Site

With the increasing tendency of engineering designers to develop underground space,the scale of urban construction underground space is also growing,and it is this trend from a certain extent,the situation of urban land tension has been effectively alleviated.Due to the depth of the pit to bring the construction of the difficulties or due to investigation,design,construction and other human errors and a variety of external natural factors,the pit pit engineering accidents frequent.In order to effectively solve the safety problems during the construction of the foundation pit engineering,the engineering staff gradually increased the supervision and control of the construction process and made full use of the monitoring technology to provide the relevant data for the construction process.In this way,Item safety technical indicators,as soon as possible to find out the role of early settlement.In this paper,through the combination of theory and engineering practice,to thingk of Hohhot mind is the city buildings for the engineering background,introduced in the construction process of the pit safety problems and the corresponding solution.After the completion of the project,the development and utilization of the underground space is expected to be high,and the underground two floors as the parking lot,the height of the main part of the building and after the completion of the application of underground space is more,so the depth of the foundation of the project relative deep in the pre-survey process must be a more detailed analysis of the groundwater level and do the corresponding precipitation program;combined with the geographical location in the city center,in the pit excavation process will involve a large number of underground pipe network.This paper first introduces the design theory knowledge and earth pressure calculation theory of foundation pit support engineering,and explains the supporting method and accident treatment method of foundation pit engineering.Finally,it is hoped that the safety problem exposed during the construction of the city is linked to engineering practice,the theoretical research is applied to the project,and finally the reasons forthe danger of the project and the inspiration in the construction of the later foundation pit engineering are analyzed.