Abstract: In the light of the elastic anti-bending reflection model as put forward in the paper entitled "Approximate Analysis of the Heat Expansion Inward Force", and the conception that ground elastically bends longitudinally and latitudinally, the article makes an analysis of the heat expansion inward for e and displa ement of borizontal asynmetri al buried bends of long pipelines. Anf ciscussed in it are the buried symmetrial and horizontal bends and the leagtin of transiton section without an hors. Examples are given to show the calculation processe.