改造工程中的顶管施工改性材料及技术应用研究

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中图分类号：TU528;TQ335 文献标志码：A文章编号：1001-5922（2025）12-0170-04

Research on modified materials and technical application of pipe jacking construction in reconstruction project

MENG Xiangji，WANG Dongju，XU Yang，WU Peng （China Construction Sixth Engineering Department Co.，Ltd.，Weifang 3OO450，Shandong China）

Abstract：Inorder to strengthen the working performance of grouting materials in drainage pipe jacking construction projects，a concrete grouting material was prepared by changing the rubber particle content and water-binder ratio，and its working performance，mechanical propertiesandapplication efects were studied.The testresults show that intheconcretegrouting material，increasingthecontentofrubberparticlesand increasing the water-binderratio will increasethefluidityofthematerialandprolong thesettingtime，utwilldecreasethestrengthofthematerial.In this experiment， the concrete grouting material was prepared with 30% rubber particle content and O.7 water-binderratio.Atthis time，the materialfluiditywas 212 mm，the seting time was11.2 hours，and the mechanical properties were good.When this material is used to pour thecaissonof the working well in thedrainage pipe jacking construction project，thequalityof theengineeringoperationcanbe fullup tostandard.In summary，thisconcrete grouting material has good performance and certain potential in the drainage reconstruction pipe jacking construction project.

Key words： top pipe construction;grouting materials ; water-binder ratio;liquidity;condensation time

混凝土注浆材料有着良好的流动性，可以对空隙等进行填充，从而对各种混凝土结构进行加固和修复[1-2]。（剩余6057字）