Test on Grouting Reinforcing Technique of Bridge Abutment Bump in Express Way
For the bridge abutment bump of express way in operation, through physical simulation experiment on the bridge-head settlement were studied to obtain the general rules of bridge-head settlement as well as the effects and parameters while grouting below the bridge-head tie-board. Grouting reinforcing method was applied to the Ning-Su-Xu West Wei River Highway Bridge; deal with the problem of bridge abutment bump. Through slurry material strength test, drill core sampling method and ground penetrating radar detect effects of grouting. Experimental results show that: By the grouting treatment below the bridge-head tie-board, which take the empty area to be filled with slurry material and make it dense, forming a whole curtain, and the density and integrity of the padding were enhanced, so, strengthening effect is very good. The practice of grouting reinforcing proves that the technique is low-cost, short construction period, and good results. So it is especially true of treating for the abutment bump of express way in operation.
Chaohe Chen, Yong Huang and Guangfan Li
J. Z. Wang et al., "Test on Grouting Reinforcing Technique of Bridge Abutment Bump in Express Way", Advanced Materials Research, Vols. 243-249, pp. 1605-1609, 2011