Here is a view below of three strands of cable called earth anchors, and as you can see they are extending out of the various drilled holes for a later purpose. The entire span of the wall, when this process is complete will have a second layer of earth anchors at a lower level. The next step in this process is to remove the soil that is covering the fork shaped H support beams in order to drill a second row of earth anchors which will be in an effort to complete the safety requirements of a properly installed retaining wall that can support the soil in this area of work. When all the earth anchors have been inserted into the ground behind the H beams and wood retaining walls to a depth of 12-15 meters and coupled with concrete grouter that is pumped into each hole until it overflows from each hole, then the anchors will be ready to be clamped off in front of the the wood beams and tension can then be applied to secure the wall. The concrete grouter requires 5 days of drying before pressure can be applied. The tension when applied to the cables will allow provisions to the support needed for the H beams spanning the length of the wall. There are also fork shaped H beams coming out of the ground that are currently welded to the large H beam stretching the entire wall length. These forks are going to be either removed or enclosed with concrete and will recieve the same insulation treatment that all below ground walls will recieve in order to avoid moisture transfer in to any basement level areas.
Here is a better view of the entire length of the northern gymnasium wall and the corner of the west wall where the earth anchors are being installed to solve the soil support problem. We have experienced some unstable soil in the gymnasium area up till now. The west wall in it's full length will require two levels of earth anchors installed as well. The first top row of earth anchors on both walls is complete and the next step is excavation of the soil that is covering the forked shaped H beams and the same process will be repeated at the lower level. Once the installation of all the earth anchors are completed successfully then the final excavation in this area will begin and the final concrete piles will be drilled into the ground in the necessary locations in order to provide adequate foundation for our gymnasium building.
Here in this picture below is a man completing the drilling process of an earth in preperation for the insertion of the 13 meter triple strand of steel cables to the appropriate depth and the next step would be to pump concrete grouter in the hole until it is overflowing on the ground and wait for it to dry.
Here is the same man at the next step inserting the triple strand 13 meter cable into the hole he drilled above which is one of sixty six anchors that will secure the gymansium area on the north, west, and south walls in order to safely retain exterior soil below grade while laborers work in this area to build our future gymnasium.
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