Flexible containment structures are those containment structures in which the movements of rigid solid, and the movements due to the flexure of the structure itself, occur in similar percentages.
The deformation itself causes the movement of the structure to influence both the value and the shape of the law of thrusts on the structure. Types of flexible containment structures
There are two main types of flexible containment structures: screens and shoring. The main difference between the two is that the shoring is much more flexible than the screens. Checks on flexible containment structures
1) Trench stability test (for concrete screens "in situ"): It is very difficult to make numbers to check it, so the safety of the trench is based on an appropriate construction process:
2) Stability of the screen: With this check, we will obtain:
3) Arming of the screen (on concrete screens "in situ"). or definition of sheet pile type (in sheet piling).
4) Calculation of props (metal structure analysis) or anchors (geotechnical analysis).
5) Excavation bottom break: Two types of break:
6) Global break: a global break can occur regardless of the characteristics of the flexible structure designed, and even, in spite of the anchors arranged.
7) Analysis of sinking of the wall screen.
8) Evaluation of movements in the excavation environment. These movements can be increased by decreases in the water table, by leaks, by dragging fines or soil ...
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