介绍自然单元法（NEM）在处理二维弹性力学问题中的应用。
The application of the Natural Element Method (NEM) to problems in two-dimensional elastostatics is presented.
提出了一种能够用于实际岩土及地下工程全自动分析计算的数值计算新方法——局部自然单元法。
The local natural element method(LNEM) which can be used in the automatic analysis of geotechnical engineering problems is implemented for solving the elasticity problem.
针对自然单元法的特点，提出了基于MLS拟合和NNI插值的应力恢复方案； 在应力恢复的基础上采用Z-Z误差估计方法对求解误差进行了有效的估计；
The solution error is estimated using the ZZ error estimator which is based on the recovery stress filed acquired through the MLS/NNI stress recovery scheme according to the character of the NEM.
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