Sentence examples for quality of backfilling materials from inspiring English sources

Especially the quality of backfilling materials and backfilling procedure, appropriate monitoring systems, and appropriate drilling techniques have to be improved.

This study is aimed at the application of the desulfurization of slags (DDS) in the production of controlled low strength materials (CLSM) to effectively address the problems of the increase of waste products and the shortage of construction materials as well as to improve the quality of backfill materials.

The investigation of the quality of backfill material shows that the minor increase in embankment cohesion can lead to significant reductions in both the lateral earth pressure and the maximum tensile force in geosynthetic.

The objective of this paper is to investigate, using PLAXIS code, the effects of the reduction in the distance between BBMSEW, the reinforcement length, the quality of backfill material and the connection of reinforcements in the middle, when the back-to-back walls are close.

Parametric studies were carried out by varying two important parameters, i.e., the wall width to height ratio and the quality of backfill material, to investigate their effects on the critical failure surface, the required tensile strength of reinforcement, and the lateral earth pressure behind the reinforced zone.

Table 2 Mechanical properties of backfilling materials used in numerical analysis Materials Young's modulus (MPa) Poisson's ratio Uniaxial compressive strength (MPa) m s Unit weight (MN/m3) Backfill 1 20.020.3 20 10.0 0.1 0.020 Backfill 2 500 0.3 10 7.5 0.1 0.017.

This indicates that the effect of backfill materials on the thermal conductivity of soil is limited.

Sufficiently high values (over 0.8W/mK) of thermal conductivity found demonstrate that the proposed mixtures are appropriate to the practical application of backfill materials for underground boreholes and pipes.

The pipe deformation was found to decrease with the increase in pipe diameter, and with the increase in the elastic modulus of backfill materials.

Composite samples of backfill material are collected at depths of 0 0.6 m and 0.6 1.2 m and analyzed for quality by comparing with parameters and concentrations described in WDEQ/LQD Guideline No. 1.

Compaction of backfill material to 95% proctor density of the backfill material was carried out by a vibratory compactor.