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Abstract Aimming at the two ubiquitous，typical and difficult problems about the false noise of monitoring displacement can¢t be rejected effectively and partial important preliminary displacement values may be lost for the reason that monitoring points can¢t be installed with the pushing of tunnel face in monitoring displacement of tunnel surrounding rock，the model of deducing onwards and revising displacement of tunnel surrounding rock based on singular value decomposition and immune clone BP network is put forward. The result of instance indicates that de-noising，deducing onwards and revising monitoring displacements of tunnel surrounding rock by this model can reach a good effect. The model can provide real and reliable data for judging the stability of tunnel surrounding rock.
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Received: 21 October 2008
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