Analysis on Construction Technology of Foundation Grouting in Goaf
The instability of the foundation in the goaf will bring security risks,so it is an important subject to study the grouting treat-ment technology in the foundation construction of the goaf.Before the foundation grouting treatment,multiple grouting holes should be arranged according to the needs of the project to make the grouting area more suitable for the construction conditions;After the grouting pipe is installed,mix the grouting slurry and carry out the foundation grouting construction.The grouting pressure during this process does not exceed 0.50 MPa;after the grouting treatment is completed,the ground channeling phenomenon is treated to ensure the overall stability of the foundation construction.The final construction results show that after using this grouting treatment process,when the grouting depth reaches 8 000 mm,the grouting pressure is 0.50 MPa,and the slope settlement is only 16.65 mm.The slope settlement is only slightly increased,and the slope settlement is controlled within the range of 10～17 mm,so the foundation is considered to be relatively stable.
goaffoundation constructiongrouting treatment process
万方数据
维普
