The global stability of soil nail walls is commonly evaluated using two-dimensional limit equilibrium principles, which are used for conventional slope stability analyses. In practise, different shapes of the failure surface behind the soil nail wall have been considered in various methods to analyze the global stability of soil nail walls. Some of these shapes of the failure surfaces include: (1) planar , (2) bi-linear with a two-wedge slipping mass (e.g., German method as in Caltrans, 1991), (3) parabolic , (4) log spiral , and (5) circular . Numerical comparisons among different methods show that differences in the geometry of...

read more

Project Summary Proposed site is located in the north of the west of the east river road at bao tou . The side of the building has leisure square and commercial shop and underground garage on the north and south of village .The excavation depth is11 meters . Engineering geology According to the geological survey report, the soil is divided into miscellaneous fill,collapsible loess, silt, coarse sand. The physical and mechanical indexes of soil are shown in table 1. Table 1 Physical and mechanical properties of soils Layer soil type name Layer thickness(m) Severe(kN/m3) cohesive force(kPa) Angle of internal friction(°)...

read more

The Hampton Roads Bridge-Tunnel (HRBT) is a 3.5-mile (5.6 km)-long Hampton Roads crossing for Interstate 64 and U.S. Route 60. It is a four-lane facility comprising bridges, trestles, man-made islands, and tunnels under the main shipping channels for Hampton Roads harbor in the southeastern portion of Virginia in the United States. It connects the historic Phoebus area of the independent city of Hampton near Fort Monroe on the Virginia Peninsula with Willoughby Spit in the city of Norfolk in South Hampton Roads, and is part of the Hampton Roads Beltway. To ease the traffic pressure, the expansion of the I-64...

read more

Hollow bar soil nail can be installed in sites with weak rocks, loose soil, weathered layer, sand with stone layer and so difficult to create a hole in complex formation. The unconsolidated ground condition favor the technique of Hollow bar soil nail for fast and simple method of installed compared to the traditional method. For simultaneously drilling and injecting, it is usually performed in cases where the ground needs to be further improved or stabilized during installation. The installation of Hollow bar soil nail is simple and fast, the cost is less, and more important is that the Rock anchor...

read more

In general, the economical use of soil nailing requires, the ground has to be stand unsupported in a vertical or steeply – sloped cut of 1 to 2 m in height for one to two days. In addition, it is highly desirable that an open drill hole can maintain its stability for at least several hours neither the execution of the work would be more challenging. Geologically the best suited conditions for soil nailing would be characterized as the stiff to hard fine-grained soils which include stiff to hard clays, clayey silts, silty clays, sandy clays, and sandy silts are...

read more

Soil nail wall construction is a technique used to bring soil stability in areas where landslides might be a problem. Soil nail can prevent landslides by inserting steel reinforcement bars into the soil and anchoring them to the soil strata. It is called Soil Nail because it’s like having a nail being hammered into the soil, where the nails, are the steel bars. Soil Nail Wall Applications The process of soil nail wall construction has some areas in which is recommended and could provide great benefits, especially when no other option is available. One of the most important things about...

read more

To be perfect soil nail suppliers, product quality is very important, however, it is not the only thing that soil nail suppliers should focus on. The devil’s in the detail. There are lots of soil nail suppliers, Sinorock is just one of them, while, Sinorock is the one who cares details mostly. Details in service Sinorock provides various communication channels for customers with fast response such as Skype, What’s App and E-mail. Skype, What’s App will be 7*24 online. Emails will be replied in 4h. We adheres to the “one-to-one” service strategy. There will always be a certain representative to...

read more