摘要
Abstract
In recent years,with the rapid construction and operation of high-speed railway,the diseases of roadbed engineering occur from time to time.If there is high-pressure soft soil or other unfavorable weak interlayer in the foundation of railway roadbed,it is not found in the stage of investigation,design and construction.In the stage of joint test or operation of railway construction,under the action of train dynamic load,it will cause the disease of uneven settlement of roadbed as a whole.Taking the treatment of the settlement disease of the soft soil roadbed of a railway in the southeast coast as an example,this paper introduces the construction technology of sleeve valve pipe split grouting and the control method of track deformation,and carries out deep reinforcement of the foundation of railway operation line.The grouting technology effectively controls the grouting pressure and grouting area,can be injected many times,and the grouting cost is low,and remarkable reinforcement effect is obtained.关键词
袖阀管/劈裂注浆/软土路基/深层加固/施工工艺Key words
sleeve valve pipe/split grouting/soft soil roadbed/deep reinforcement/construction technology分类
交通工程
