2017年05月17日

Useful soil nailing support

Soil nailing support combines drilling, grouting and anchoring together, without casing pipe and only one person can operate it, which is secure, high-efficient and energy-saving. Overall thread on surface ensures enough bonding stress and long supporting time.
Based on this dam construction environment needing grouting and anchoring , it can be used soil nailing to stabilize the foundation effectively, which can be applied to kinds of environment, can ensure continuously steady construction, can be high degree of mechanization, low noise and less dust, can reduce the labor intensity of workers, and can be conducive to their health and safety.
Self drilling soil nail anchor is regarded as a common product for hydro projects. Sinorock manufacturers both R-thread and T-thread systems, including R25, R32, R38, R51, T30, T40, T52, T73, T76, T103, T111, T127 and T130 sizes. We has been always providing the safe, efficient, energy-saving and environmental friendly products and services for clients. Nowadays Sinorock hollow soil nail systems have been used in numerous famous hydropower plants at home and abroad.  
Posted by soilnailsystems at 17:54Comments(0)TrackBack(0)

2017年05月08日

Soil nail in soil

The swelling pressure induced lateral stress and deformation in soil, the maximum nail load, and the nail head load of a soil nail wall constructed in high plasticity expansive soil are determined using finite element model. Soil samples were collected from the construction site and were subjected to various laboratory testing to measure the soil parameters related to volume change due to change in soil suction and to establish the soil water characteristic curve for the soil. The moisture content profile of the construction site was monitored for two years and a wetting envelope was developed to represent the maximum change in moisture content due to seasonal fluctuation. A finite element model is developed to simulate the soil nail wall in high plasticity expansive soil, which shows that the lateral stress and deformation in soil, the maximum nail load, and the nail head load of a soil nail wall increases significantly due to seasonal fluctuation of the moisture content.   
Posted by soilnailsystems at 19:06Comments(0)TrackBack(0)