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A potholing method

A technology for enclosing points and cave walls, which is applied in earth movers/shovels, water conservancy projects, sea area projects, etc., can solve problems such as economic losses, and achieve the effect of reducing the risk of disasters

Inactive Publication Date: 2005-09-28
田小红
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If Sanmenxia is not storing water for power generation, the risk of damage to the Weihe River can be reduced, but if the Sanmenxia Reservoir stops storing water for power generation, it will cause considerable losses to the economy of Henan Province
In other words, if Sanmenxia continues to store water for power generation, the Weihe River in Shaanxi Province will become a disaster-stricken area. If Sanmenxia stops water storage for power generation and digs sand drainage holes, the economy of Henan Province will also suffer a lot of losses.

Method used

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Embodiment Construction

[0026] The first stage of preparation

[0027] 1. According to the conditions of the Sanmenxia Dam itself, determine the gate of the sand discharge hole ( figure 2 )the size of;

[0028] 2. Gate ( figure 2 ) after the size is determined, according to ( figure 2 ) to make seventeen pairs of assembled gates of the same specification and size, and the inner frame of the gate ( image 3 ) and gate middle frame surface and four arc iron legs ( Figure 4 ) each pays seventeen.

[0029] 3. According to the size of the gate outer frame 11, determine the Qitou square mouth submarine ( Figure 6 ) after the size of the square mouth and the hole position of the wire hole, the submarine with a square mouth at the head ( Figure 6 ) a ship.

[0030] 4. Qitoufangkou Submarine ( Figure 6 ) should have relatively closed cabins at the front and rear, with a door 28 that can be freely entered and exited in the middle, but sealed. Four lifting lugs 25 should be equipped on the submar...

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Abstract

The hole making method is used in drilling sediment discharging hole for reservoir in normal water accumulating condition. The hole making method includes enclosing the point where the hole to be drilled, separating water on both inside and outside of dam near the said point, and drilling sediment discharging hole. Drilling sediment discharging hole can discharge sediment effectively to increase capacity of reservoir and the sediment discharging hole unit is replaceable.

Description

technical field [0001] The invention relates to a method for digging a sand discharge hole under the condition of normal water storage and power generation of the Sanmenxia Dam. Background technique [0002] When Sanmenxia developed the design of the reservoir dam, it did not design sand discharge holes on the dam. Due to the characteristics of a bowl of water and half a bowl of mud in the Yellow River, the accumulation in the Sanmenxia Reservoir has resulted in the increase of silt in the Sanmenxia Reservoir, the increase in high dead storage capacity, and the elevation of the upstream riverbed in the Sanmenxia Reservoir area, making the upper reaches of the Weihe River a suspended river above the ground. , become the disaster area. If Sanmenxia is not storing water for power generation, the risk of damage to the Weihe River can be reduced, but if the Sanmenxia Reservoir stops storing water for power generation, it will cause considerable losses to the economy of Henan Pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B8/00E02D29/09E02F5/18
Inventor 田小红
Owner 田小红
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