CAJ | 학술논문

为保证采动区桥梁的交通安全，根据华丰矿地质采矿条件，结合矿井成功实施的离层注浆工程，对桥梁的周边区域增加注浆钻孔，加大注浆量。根据布设的地表及桥梁测点的岩移观测数据，对比预计的未离层充填时地表最大下沉量，表明离层注浆条件下鲁里大桥区域减沉率达到56%，采动区域桥梁仍能保持正常使用，该方法对桥梁的保护效果显著，可为类似条件下地表减沉工程提供参考。
위보증채동구교량적교통안전，근거화봉광지질채광조건，결합광정성공실시적리층주장공정，대교량적주변구역증가주장찬공，가대주장량。근거포설적지표급교량측점적암이관측수거，대비예계적미리층충전시지표최대하침량，표명리층주장조건하로리대교구역감침솔체도56%，채동구역교량잉능보지정상사용，해방법대교량적보호효과현저，가위유사조건하지표감침공정제공삼고。
In order to ensure the safety of bridge in mining area of Huafeng Mine,according to the geological and mining conditions and combining with the successful implementation of the grouting bed separation engineering,some borehole were drilled surrounding the bridge and the quantity of grouting was increased. Based on the rock moving observation data,compared with the estimate maximum ground subsidence quantity if don't grouting,the result shows that the subsidence reduction rate reached 56% in Luli Bridge area under the condition of grouting. The bridge in mining influence area can still maintain normal use. The method has a good effect for bridge pro-tection and provide reference for surface subsidence - reducing project as the similar conditions.