Composite fluid retaining barrier system
A liquid retaining barrier comprises a plurality of vertically stacked members, each member having first and second ends, a length between the first and second ends, first and second sides, and top and bottom faces. An outer shell extends around a perimeter formed by the first and second sides and first and second faces of the member, and defines an inner core space. A conduit comprising a compression reinforcement material is positioned in the inner core space and forms an approximately parabolic curve extending between the first and second ends. A side of the outer shell is tangent to the curve of the conduit at about the mid-point of the length of the member.
1 . A modular barrier, comprising:
a plurality of vertically stacked members that are coupled together, including a top member and a bottom member, each member comprising:
opposite first and second ends, a length between the first and second ends, opposite inner and outer sides, and opposite top and bottom faces;
an outer shell extending at least partially around a perimeter of the member formed by the inner side, outer side, top face, and bottom face, the outer shell having an inner core space; and
a curved conduit positioned in the inner core space and extending between the first and second ends, the conduit having a concave side facing the member inner side, and a convex side facing the member outer side;
wherein at least one of the top and bottom members has a first end comprising a hub with an opening for receiving a pin, and wherein the barrier is rotatable on the pin.
2 . The modular barrier of claim 1 , wherein the outer shell comprises a corrosion resistant material.
3 . The modular barrier of claim 2 , wherein the corrosion resistant material is a glass fiber reinforced polymer.
4 . The modular barrier of claim 1 , wherein the member outer side is tangent to the conduit convex side at a point between the member first and second ends.
5 . The modular barrier of claim 1 , wherein the conduit comprises a compression reinforcement material selected from the group consisting of: Portland cement concrete, Portland cement grout, polymer concrete and ultra high-performance concrete.
6 . The modular barrier of claim 1 , wherein the inner core space between the outer shell and the conduit is at least partially filled with a core material selected from the group consisting of: a polyisocyanurate foam, a polyurethane foam, and a polystyrene foam.
7 . The modular barrier of claim 1 , further comprising a vertical tie extending through the vertically stacked members, wherein the vertically stacked members are coupled together by the vertical tie.
8 . The modular barrier of claim 1 , wherein the plurality of vertically stacked members comprises adjacent vertically stacked first and second members, and further comprising a spacer positioned between the first and second members, wherein the first and second members are coupled together by the spacer.
9 . The modular barrier of claim 8 , wherein the spacer comprises:
a body having opposite first and second sides, and opposite first and second ends;
a first and second flanges respectively positioned at the first and second ends;
a first channel formed by the first side, and first and second flanges, the first channel sized and shaped to receive the first member; and
a second channel formed by the second side, and first and second flanges, the second channel sized and shaped to receive the second member;
wherein the first and second members are vertically aligned by the spacer.
10 . The modular barrier of claim 9 , wherein the first channel is sized and shaped to receive the bottom face of the first member, and the second channel is sized and shaped to receive the top face of the second member.
11 . The modular barrier of claim 1 , further comprising a face sheet extending across the outer sides of the vertically stacked members, wherein the vertically stacked members are coupled together by the face sheet.
12 . The modular barrier of claim 11 , wherein the face sheet comprises a corrosion resistant material.
13 . The modular barrier of claim 12 , wherein the corrosion resistant material is a glass fiber reinforced polymer.
14 . The modular barrier of claim 11 , further comprising a spacer positioned between adjacent vertically stacked members, wherein the face sheet is coupled to the spacer.
15 . The modular barrier of claim 1 , wherein the curved conduit has a center line, the hub opening has a center, and the conduit center line passes through the center of the hub opening.
16 . A modular barrier, comprising:
a plurality of vertically stacked members that are coupled together, each member comprising:
opposite first and second ends, a length between the first and second ends, opposite inner and outer sides, and opposite top and bottom faces;
an outer shell extending at least partially around a perimeter of the member formed by the inner side, outer side, top face, and bottom face, the outer shell having an inner core space; and
a curved conduit positioned in the inner core space and extending between the first and second ends, the conduit having a concave side facing the member inner side, and a convex side facing the member outer side; and
a ballast removably received in at least one of the plurality of vertically stacked members.
17 . The modular barrier of claim 16 , wherein the ballast is removably received in the inner core space between the outer shell and the conduit.
18 . The modular barrier of claim 16 , wherein the plurality of vertically stacked members form a floating caisson gate for an opening of a dry dock; and
wherein the buoyancy of the floating caisson gate is controlled by the amount of ballast received in the member.
19 . The modular barrier of claim 18 , wherein first and second ends of the plurality of vertically stacked members form tapered floating caisson gate ends.
20 . A modular barrier, comprising:
first and second gates, each gate comprising a plurality of vertically stacked members that are coupled together, each member comprising:
opposite first and second ends, a length between the first and second ends, opposite inner and outer sides, and opposite top and bottom faces;
an outer shell extending at least partially around a perimeter of the member formed by the inner side, outer side, top face, and bottom face, the outer shell having an inner core space; and
a curved conduit positioned in the inner core space and extending between the first and second ends, the conduit having a concave side facing the member inner side, and a convex side facing the member outer side;
wherein the vertically stacked members comprise a top member and a bottom member, at least one of the top and bottom members having a first end comprising a hub with an opening for receiving a pin, wherein the gate is rotatable on the pin;
wherein the vertically stacked members of the second gate are arranged in a mirror image of the vertically stacked members of the first gate; and
wherein the barrier is moveable between a closed position with the first and second gates rotated toward each other and the member second ends of the first gate in contact with the member second ends of the second gate, and an open position with the first and second gates rotated away from each other and the member second ends of the first gate rotated away from contact with the member second ends of the second gate.
21 . The modular barrier of claim 20 , wherein the barrier in the closed position forms a mitre joint between the member second ends of the first and second gates.
22 . The modular barrier of claim 20 , further comprising a seal positioned at the member second ends of at least one of the first and second gates.