Abstract:
An integrated anchoring structure of basalt fiber reinforced plastic (BFRP) bars for a reservoir bank slope includes: a plurality of BFRP anchoring bars, where each of the BFRP anchoring bars includes a plurality of BFRP bars bonded to one another, a lower steel casing pipe, an upper steel casing pipe and a steel strand bonded to an upper portion of the upper steel casing pipe and aligned with the BFRP bars, and a grating array temperature sensing optical cable, a grating array stress sensing optical cable and a grating array vibration sensing optical cable are bonded in each of the BFRP bars; a plurality of shear-resistant bricks distributed on structural planes; a pouring base arranged at a bottom of the anchoring borehole; and an anchoring section arranged at an upper portion of the pouring base.
Abstract:
A method for fabricating a retaining wall configured to extend into a ground comprising the steps of providing at least a first longitudinal support having a receiving part and extending along a first longitudinal direction; placing the first longitudinal support transversely to the ground; providing at least a first module comprising a longitudinal element and a first wing; positioning the first module parallel to the first longitudinal support; connecting the first module to the first longitudinal support, so that the first wing of the first module is slidably engaged with the receiving part of the first longitudinal support; then moving said first module in translation along the first longitudinal direction, and sinking said first module into the ground and then the first longitudinal support into the ground.
Abstract:
A soil retaining system combining flat sheet pile walls in an open cell configuration includes integral soil anchors providing an improved earth retaining system. Another aspect of the invention is a method of designing and installing a soil retaining system with an open sheet pile cell structure having integral soil anchors. The method includes, inter alia, calculating soil forces by taking into account material strength of sheet pile, soil friction against the sheet pile in combination with the strength of the integral soil anchor, selecting sheet pile size and length based on soil forces calculation; and installation of sheet pile to form a soil retaining system. The integral soil anchors serve to provide higher load resistance to the improved earth retaining system.
Abstract:
The invention relates to a method for making a barrier screen in a dike body for preventing transport of soil particles, said barrier screen being positioned substantially standing and extending in a longitudinal direction of said dike body, wherein in said method said barrier screen is obtained by mechanically mixing soil that is already present in said dike body with a binder. The method is characterized in that it comprises the step of displacing the chain cutter along the trajectory of the barrier screen to be made through the dike body and mixing the soil present and the binder as well as inserting a cloth into the mixed soil.
Abstract:
The invention relates to a prestressed diaphragm wall in the ground (10) including a concrete panel (52), at least one anchor tube open at its upper end (38) and closed at its lower end (36) and, embedded at least partially in the concrete panel, at least one cable (60) extending inside the anchor tube (30), a lower portion of the cable (60) being fixed to said tube (30), and a cable anchoring system (90), configured to hold the cable in tension (60) and secure its upper portion (68) to the upper portion of the concrete panel (52). It also relates to a method for making a prestressed diaphragm wall.
Abstract:
The method for the restoration and reinforcement of scarps and a resulting reinforced structure is provided. The method includes of clearing the scarp surface under restoration, and of creating a pit (an excavation). The bottom of the pit is filled with mineral soil and is compacted as a foundation of a retaining wall. A protective filter made from draining mineral soil is installed on the foothill of the scarp, where the protective filter is surrounded by draining geotextile. The geogrid is placed on the surface of the regressed scarp and then anchored to the soil of the scarp by tensile ropes. A rigid support, such as a crib (grillage), is created on the protective filter and batter piles are driven under the rigid support. Then the retaining wall is constructed, consisting of layers of compacted soil that are surrounded by draining geotextile. The retaining wall is covered by erosion control mats, anchored to the draining geotextile of the soil layers of the retaining wall. Protrusion in the scarp is covered with large granite boulders or concrete elements.
Abstract:
An erosion control device is placeable on a ground surface for serving as a barrier to the passage of soil past the control device. The control device includes a bag member that includes an upper member and a lower member that define a hollow pocket between the upper member and the lower member. A filler material is placed within the pocket member to impart a pillow-like shape to the bag member. The filler material is includes filler elements derived from shredded tires.
Abstract:
A soil retaining system combining flat sheet pile walls in an open cell configuration includes integral soil anchors to provide an earth retaining system. A method of designing and installing a soil retaining system with an open sheet pile cell structure having integral soil anchors. The method includes, inter alia, calculating soil forces by taking into account material strength of sheet pile, soil friction against the sheet pile in combination with the strength of the integral soil anchor, selecting sheet pile size and length based on soil forces calculation; and installation of sheet pile to form a soil retaining system. The integral soil anchors serve to provide higher load resistance to the earth retaining system.
Abstract:
A method for stabilizing soil so as to inhibit undesirable movement thereof includes placing at least one anchor, such as a self-advancing helical anchor or a rock anchor, in the ground and then attaching a soil bolting device to the anchor. The soil bolting device may then be moved toward the anchor, such as by tightening a fastener which attaches the soil bolting device to the anchor, so as to compact and stabilize soil proximate the soil bolting device.
Abstract:
Disclosed is a method for reinforcing a slope, in which field ground deformation characteristics of an unstable slope can be rapidly and reliably judged, and the unstable slope is recovered and restored to its own natural state so as to make it possible to secure stability by introduction and application of an earth reinforcement theory, i.e., a theory that an apparent cohesion is increased by reinforcement members. This slope reinforcing method comprises the steps of: studying application conditions in connection with an applicable limit, in consideration of which determining soil parameters using the reverse analysis technique of the Janbu method; analyzing stability of the slope using the soil parameters by the Janbu method to estimate an slip failure force and a resistance force of the slope; planning a construction section of a reinforcement zone in order to increase the resistance force of the slope; disposing slope horizontal drain holes in consideration of the underground water level condition to study an external stability; checking an internal stability within the reinforcement zone against a critical failure; section in consideration of a pull-out force and a shear capacity of the reinforcement member; preparing design drawings; carrying out a reinforcement construction work; and treating surfaces of the greening soil.