CAJ | 학술논문

矿井导线网平差的特点是2类观测值(测角和量边)数量相当，多余观测量相对较少。为了提高矿井大型导线控制网的平差精度，根据矿井导线控制网往返观测及验后估计需要多余观测数较多的特点，提出了双观测平差模型。相对于经典平差模型，该模型条件方程个数较多，容易满足验后估计的可估条件，从而可通过后验估计合理定权来提高矿井大型导线控制网的平差精度。以某矿井大型导线控制网的实测数据为例进行了平差计算，结果显示：经典平差模型求得的3条已知边的方位角平差值与真值之差依次为-7″、-62″、-54″，而新提出的双观测平差模型所得出的平差值与真值之差依次为-10″、-12″、-15″，这说明双观测平差模型通过Helmert方差估计能够合理定权，可更准确地计算出各网点的平差值，具有一定的实用性。
광정도선망평차적특점시2류관측치(측각화량변)수량상당，다여관측량상대교소。위료제고광정대형도선공제망적평차정도，근거광정도선공제망왕반관측급험후고계수요다여관측수교다적특점，제출료쌍관측평차모형。상대우경전평차모형，해모형조건방정개수교다，용역만족험후고계적가고조건，종이가통과후험고계합리정권래제고광정대형도선공제망적평차정도。이모광정대형도선공제망적실측수거위례진행료평차계산，결과현시：경전평차모형구득적3조이지변적방위각평차치여진치지차의차위-7″、-62″、-54″，이신제출적쌍관측평차모형소득출적평차치여진치지차의차위-10″、-12″、-15″，저설명쌍관측평차모형통과Helmert방차고계능구합리정권，가경준학지계산출각망점적평차치，구유일정적실용성。
The quantity of two types of observation values are closely with each other and the additional observation val-ues is relatively few,which are the obvious characteristics of undermine transverse adjustment. In order to improve the precision and reliability of the undermine large and control network, the dual-observation adjustment model is proposed based on the characteristics of the direct and reversed observation of undermine transverse control network and the more redundant observa-tion required by posterior estimation. Compared with the classical adjustment models,the dual-observation adjustment model is characterized by more condition equations and easier to meet the estimation condition of posterior estimation,and then the pre-cision can be effectively improved by determining the proper weight value by using posterior estimation. Taking the measure da-ta of the undermine large traverse control network of a mine as the research example,the adjustment calculation is conducted, the results show that the difference between the azimuth angle adjustment values of the three known sides obtained by using the classical adjustment model and the true values are -10″,-12″,-15″respectively,the differences of the adjustment values ob-tained by the dual-observation adjustment model proposed in this paper and the true values are-10″m,-12″,-15″respectively, it is further indicated that the dual-observation adjustment model proposed in this paper can improve the precision and reliabili-ty of the nodes of the undermine large traverse control network by determining the reasonable weight values based on Helmert variance estimation method,therefore,it has some practical value to improve the adjustment precision of the undermine large traverse control network.