What does Hedi Reservoir look like? Metaphorical sentence homework help

Hedi Reservoir is a multi-year regulation reservoir with a total storage capacity of 1.1875 billion cubic meters, including a flood regulation capacity of 311.5 million cubic meters, a positive storage capacity of 536 million cubic meters, and a dead storage capacity of 340 million cubic meters. In August, the governments of Guangdong and Guangxi provinces agreed that the normal high water level would be 40.5 meters and the design flood level would not exceed 42 meters. The corresponding water surface of the normal high water level is 108.4 square kilometers, and the corresponding storage capacity is 876 million cubic meters.

The reservoir area hub project includes one main dam, 36 auxiliary dams, two spillways, one water conveyance tunnel, one ship lock and two power stations.

The main dam is a homogeneous earth dam with a dam crest elevation of 43 meters, a maximum dam height of 29.25 meters, a dam crest length of 885 meters, a wave wall height of 0.8 meters, and a dam crest width of 7 meters. The dam body is artificially Mainly fill the soil and crush it with tractors.

There are 36 auxiliary dams with a total length of 7,025 meters and a maximum dam height of 23.7 meters. The number of auxiliary dams is the longest among reservoirs in Guangdong Province.

Hedi Reservoir (9 photos)

Both spillways are on the left bank. The first spillway has a net width of 50 meters and is controlled by a 5-hole 10×4.5-meter curved steel gate. The gate bottom elevation is 35.2 meters. The designed maximum discharge volume is 1,500 cubic meters per second. A stilling tank is used to dissipate energy at the end of the steep channel. The second spillway has a net width of 120 meters and a weir crest elevation of 38 meters. It is also controlled by a curved steel gate and has a designed maximum discharge volume of 1,530 cubic meters per second.

The water conveyance tunnel is of the down-the-hole type, with an entrance elevation of 31.0 meters. It is divided into 2 holes, each with a cross-section of 4 × 3 meters. It is controlled by a steel arc gate. The designed maximum water conveyance flow is 155 cubic meters. per second (another data is 120 cubic meters per second).

There is one ship lock, the lock chamber is 24 meters long and 10.5 meters wide, and can pass 40-ton ships.

There are two power stations with a maximum installed capacity of 5150 kilowatts.

80,700 acres of cultivated land was submerged in the reservoir area, and 41,200 people were immigrated.