A critical element in the any repair or upgrading project is the need to assess the condition of the structure. This assessment is needed to establish the existing condition of the structure and to plan for its repair. Secondly, means to assess in real time the progress of the repair are required especially when techniques such as grouting are being used. Finally, an assessment of the modified ...

This paper takes the ZF3806 working face of Shuiliandong Coal Mine in Binxian County, Shaanxi Province as engineering background. Aiming at problems development surrounding rock cracks and roof breakage encountered process roadway excavation support based on composite beam theory, method layered grouting reinforcement roadways is proposed according to deformation failure internal drilling condi...

Grouting treatment is the main technology to reduce or eliminate residual deformation and activation of foundations in goaf sites. Under influences overburden mining, distribution grouting foundation quite different from that conventional mechanism porous media. In this paper, considering time-dependent viscosity diffusion path slurry, permeation Bingham fluid derived based on seepage motion eq...

While post-grouting is frequently reported to improve the engineering performance of piles, shear strength soil around piles not well understood. To investigate strengthening mechanism with permeation grouting, laboratory tests were carried out on homemade cement from aspects and microstructure characteristics. The evolution rule stress–shear displacement curve grouting different contents was a...

Salah satu permasalahan pada tanah yang sering menjadi kendala dalam suatu kegiatan konstruksi salah satunya adalah penurunan tanah. Tujuan penelitian ini menganalisis sifat fisik dan mekanik lempung besar nilai daya dukung konsolidasi setelah dilakukan grouting. Metode perbaikan metode Grouting menggunakan bahan semen portland kapur aktif. Variasi akan digunakan 2 titik grouting kombinasi (d =...

High-speed railways are built in deep soft-soil foundations interlayered with hard materials. However, the layers cannot be penetrated by conventional foundation treatment. Moreover, project cost is sometimes prohibitive, which an issue for post-construction subsidence control. The bag grouting pile a special grouting-pile-reinforcement technique treating This paper conducted tests on Ningbo-Ta...