Retaining structures combined pile-anchor with soil nails considering vertical soil arch;

On the characteristics of the pile-anchor supporting structure of the door frame type reinforced concrete

In this article,authors introduce the design and construction of composite supporting technique of soil nailing and pile-anchor in a deep foundation pit support under complex environment and geological conditions,and mainly present the design measures and technical measures under special condition.

Study on optimization of anchor pile spacing for Goupitan Hydropower Station;

Discussion of the anchor pile static load experimentation on the impact of anchor pile;

Ultimate pull bearing capacity of anchor pile on working derricks determined by mechanical impedance method;

In combination with practical example of a foundation pit supporting in Changsha,technical and economic comparisons and analyses were made for several support schemes,the optimal method is combined support of soil nailing wall and pile anchor,and the design method and construction technique of the combined support technology were introduced in this paper.

In view of complex peripheral environment in the site of foundation pit of Science and Teaching Building of Wu- han First Hospital,information construction and combined supporting method were adopted with pile anchor retaining,soil nailing wall with mesh shot-concrete and concrete anchor.

According to the results calculated by FEM, the effects on stresses with and without the ear of anchor block were compared and discussed, and the different interface modelings between the bottom of anchor block and pier were summarized.

Finally,the effect of different interface models between the bottom of anchor block and pier was discussed.

The bearing loads of spillway piers and anchor block of a hydropower station are extremely large;and the maximum thrust of a single radial gate shoe will reach 20 543 kN.