基于北斗卫星定位系统的实时闭合区域三维建模和土方平衡计算

3D Modeling and Earthwork Balance Calculation of Real-Time Closed Area Based on Beidou Satellite Positioning System

土方平衡计算涉及工程双方的经济利益,是土木工程建设工程的重要组成分布,基于此提出基于北斗卫星定位系统的实时闭合区域三维建模和土方平衡计算方法。分析北斗卫星系统定位原理及其定位过程,利用北斗卫星定位系统观测方程的线性化处理获取地形坐标。基于地形坐标数据,采用三角网构建施工区域三维模型;采用三角网模型,考虑平土自身的填挖平衡、土质松散系数等影响因素,进行土方平衡计算。

Earthwork balance calculation involves the economic interests of both sides of the project and is an important component of civil engineering construction.Based on this,a real-time closed area 3D modeling and earthwork balance calculation method based on Beidou satellite positioning system is proposed.The positioning principle and process of Beidou satellite system are analyzed,and the terrain coordinates are obtained by linearizing the observation equation of Beidou satellite positioning system.Based on the terrain coordinate data,the three-dimensional model of the construction area is constructed by using the triangular network;the earthwork balance calculation is carried out by using the triangular network model,taking into account the influence factors such as the filling and excavation balance of the flat soil itself and the soil loose coefficient.