DAM OF ROLLED LOW-CEMENT CONCRETE Russian patent published in 2005 - IPC

FIELD: hydraulic structures, particularly gravity dams.

SUBSTANCE: dam comprises upper pillar and lower wedge formed of rolled low-cement concrete, water-tight structure made as diaphragm extending from dam base to dam head and arranged between upper pillar and lower wedge. Dam head is supported by upper pillar and lower wedge with solid connection creation. Dam head is made of ordinary reinforced concrete. Diaphragm is made of asphalt concrete. Dam base is made as panel on which upper pillar, diaphragm and lower wedge are supported to create solid connection. Central dam part defined along height thereof has tunnel located in lower wedge and anchor belt formed in upper pillar, which directly abut upon diaphragm from both sides thereof and connected one to another by anchors passing through the diaphragm. Panel, anchor belt and tunnel body are made of ordinary reinforced concrete. Upper pillar has vertical upper part. Lower part thereof is inclined towards lower wedge. Diaphragm thickness a obeys the following inequality: a>0.4-0.008·H, where H is dam height in meters. Upper pillar and lower wedge may be formed of macroporous concrete. Head may be light-weight and have frame structure.

EFFECT: increased dam reliability, decreased dam erection time, reduced labor inputs and costs.

5 cl, 4 dgw, 3 ex