Application of instant rtk in engineering control network 在工程控制網(wǎng)中的應(yīng)用
According to the features of engineering control network and the requirements of accuracy and convenience of staking out in construction , the main achievements of this paper are as follows : 1 本文結(jié)合路橋工程控制網(wǎng)的特點(diǎn)及施工放樣的準(zhǔn)確、方便的要求,對(duì)gps在路橋工程中應(yīng)用的一些問(wèn)題進(jìn)行了研究,主要貢獻(xiàn)有以下幾點(diǎn): 1
Some features of the engineering control network demand special applications of gps in road and bridge engineering , for example , particular requirement of accuracy on some aspect that results in distribution of net points and sometimes bigger height difference of points , consideration of staking out in construction in the design of engineering control network , application of independent engineering coordinate system , and use of engineering mean height surface as the projection surface of computation 由于工程控制網(wǎng)的一些自身特性,如施工控制網(wǎng)要考慮施工放樣的方便,或某一方面精度的特定要求,網(wǎng)點(diǎn)分布不夠均勻,點(diǎn)間高差有時(shí)較大;采用工程獨(dú)立坐標(biāo)系,并且往往以工程平均高程面為計(jì)算投影面等等,使得gps在路橋工程中的應(yīng)用也有一些特殊性。