Influence of axial stress and dilatancy on rock tunnel stability

Article Abstract:

A technical paper claims that the magnitude of the intermediate principal stress in the failed zone surrounding an opening depends on the magnitude of a dilatancy parameter rather than being a function of the sum of the maximum and minimum principal stresses. Although this premise may be true, its validity cannot be proven using the methodology presented in the paper. The analysis method is particularly flawed in using the Mohr-Coulomb and Hoek and Brown failure criteria.

Rock mechanics, Tunnels

---

Factors affecting mechanical and creep properties of silicate-grouted sands

Article Abstract:

A recommendation is made to base grouted sand behavior analysis on both partial and total filling of pores to study particulate as well as continuum behavior. Continuum behavior, however, is posited to be optimum for peak stress analysis.

Czech Republic, Egypt, Environmental aspects, Strength of materials, Strength (Materials), Sand, Sands, Creep (Materials)

---

Cohesive and adhesive properties of silicate grout on grouted-sand behavior

Article Abstract:

An examination is presented of real-world applications of chemically grouted sand strengthening mechanisms. Topics include load capacity, property relationships, and compressive capability.

Dynamic testing (Materials), Silicates

Similar abstracts:

• Abstracts: Prediction of residual stresses in welded T- and I-joints using inherent strains. Cross-sectional mapping of residual stresses by measuring the surface contour after a cut
• Abstracts: Constitutive relations for partially saturated soils containing gas inclusions. Compressibility of clays: fundamental and practical aspects
• Abstracts: electrosorption and reduction of pertechnetate by anodically polarized magnetite. Valuable products from mineral waste oils containing heavy metals
• Abstracts: Ammonia removal processes for urine in an upflow macrophyte system. Elemental association and fingerprinting of traffic-related metals in road sediments
• Abstracts: Status of ASCE standard on design and construction of frost protected shallow foundations. Pile responses caused by tunneling

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.