Method for installing an expansion joint in a concrete dam

Details Method for installing an expansion joint in a concrete dam Method for installing an expansion joint in a concrete dam

1995-06-07

1998-04-07

Graysay, Tamara L.

Hydraulic and earth engineering

Fluid control, treatment, or containment

Flow control

405107, E02B 708, E02B 316

Patent

active

057356360

ABSTRACT:
A method for installing expansion joints in concrete dams using a sealing device includes the steps of boring a hole in the dam intended for receiving the sealing device at a distance from water retained by the dam, installing the sealing device in the hole, and completing the expansion joint by cutting the dam on each side of the hole such that the hole communicates with the downstream side of the dam and with the water on the upstream side thereof. The cut is also made to communicate with the hole and thus with the sealing device. Second and third holes are bored before installing the sealing device in the first hole with the second and third holes overlapping on each side of the first hole. The sealing device comprises a tubular and elastic cell adapted to be inserted and installed in the first hole and includes reinforcements spaced from each other. The sealing device is first positioned in the first hole with its reinforcements located opposite the second and third holes, and is then filled under required pressure with an appropriate fluid.

REFERENCES:
patent: 1628933 (1927-05-01), Troiel
patent: 1719003 (1929-07-01), Downing
patent: 2341322 (1944-02-01), Hubbell
patent: 2368511 (1945-01-01), Zimmerman
patent: 3342033 (1967-09-01), Crouch
patent: 4268192 (1981-05-01), Colle
patent: 4655638 (1987-04-01), Waring
patent: 5449248 (1995-09-01), Szita et al.
Patent Abstracts of Japan, vol. 10, No. 381 (M-547)(2438) Dec. 19, 1986 & JP-A-61 172 907 (Bridgestone) Aug. 4, 1986, Abstract.

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