›› 2009, Vol. 30 ›› Issue (1): 40-44.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Reinforcing tensile cracks of historical earthen kiln with soil nailing technique

CHAI Xin-jun1, HAYASHI Shigenori2, YANG Ze-ping1, YI Ping-hua1, HOU Long-qing1   

  1. 1. East China Institute of Technology, Fuzhou 344000, China; 2. Institute of Lowland Technology, Saga University, Saga 840-8502, Japan
  • Received:2007-07-03 Online:2009-01-10 Published:2011-01-14

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Abstract:

Preservation of historical earthen sites against damage is one of the difficult problems. Rock bolt and soil nailing techniques, with its characteristics of in-situ reinforcement, has been frequently applied to strengthen rock-based ruins, yet their applications to earthen ruins are seldom reported. Dougaeri No.2 historical ruin is an underground historical earthen kiln, tensile cracks have been developed at the poorest location while removing the backfilled soil inside of the kiln. Finite difference method code- FLAC has been employed to evaluate the effectiveness of micro-soil nailing technique for reinforcing the tensile cracks. Parameter studies are performed to investigate the effect of nail length, inclination angle, spacing and diameter of drill hole. Considering the field practical condition and the specific requirements for the appearances of the earthen kiln’s preservation, reasonable reinforcement design and practice method have been presented. The successful application of micro-soil nailing for reinforcing tensile cracks of the kiln will be of benefit to the preservation of underground soil-ruins.

Key words: historical earthen-kiln, tensile cracks, soil nailing, numerical simulation, reinforcement design

CLC Number: 

  • TU 43
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