CN212248138U

CN212248138U - Water conservancy water and electricity water inlet arrangement structure

Info

Publication number: CN212248138U
Application number: CN201922083004.1U
Authority: CN
Inventors: 唐碧华; 夏勇; 何顺宾; 田华; 谷玲
Original assignee: PowerChina Chengdu Engineering Co Ltd
Current assignee: PowerChina Chengdu Engineering Co Ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-12-29
Anticipated expiration: 2029-11-27

Abstract

The utility model relates to a water conservancy water and electricity water inlet arrangement structure, including the water inlet end, the inside cavity of water inlet end sets up in the below ground of side slope, inside cavity is through the water inlet and the outside intercommunication of water inlet end. The internal cavity of the water inlet end is arranged below the ground of the side slope, so that ground engineering is effectively converted into underground engineering as much as possible, the height of the side slope engineering is greatly reduced, the disturbance to the ground can be reduced to the greatest extent, and the environment protection effect is obvious. Meanwhile, the excavation amount is effectively and greatly reduced by the structural design, so that the investment and the construction period are effectively controlled, and obvious economic benefits are obtained. The utility model discloses be particularly useful for among the structural design of the bank side water inlet that the natural side slope is precipitous, the rock condition is better.

Description

Water conservancy water and electricity water inlet arrangement structure

Technical Field

The utility model relates to a water conservancy water and electricity facility field especially relates to a water conservancy water and electricity water inlet arrangement structure.

Background

In water conservancy and hydropower engineering, water inlets of more projects are arranged on the bank side, and bank side water inlets mainly comprise a bank tower type, a gate shaft type and a bank slope type. The shore tower type water inlet is formed by uniformly arranging a trash rack, a bell mouth and a gate in a tower body connected with the shore, and the open cut amount of the structure is large; the gate shaft type water inlet is characterized in that a trash rack is arranged outside a hole, a bell mouth is directly dug on a bank slope, a gate is arranged in a shaft, the tunnel at the upstream section of the shaft with the structure is a blind section, and the gate does not have maintenance conditions under the condition of normal power generation water level; the bank slope type water inlet is formed by arranging the trash rack and the gate along a bank slope, and the size and the opening and closing force of the gate with the structure are larger after the horn mouth is arranged on the gate. Taking a dam-free water diversion project as an example, a sand blocking bank and a gravel settling pond need to be arranged at the upstream of the water inlet, and according to the project characteristic, the front section of the water inlet is longer and more excavations are needed.

Therefore, no matter the traditional shore tower type or gate shaft type water inlet type, the trash rack is uniformly distributed outside the hole, and in addition, the upstream sand blocking ridge and the gravel settling pool section are relatively long in length, and the natural side slope is steep, so that the project side slope is high, the influence on the natural environment is very large, and particularly in an environment sensitive area, the project faces the problem of unsolvable environmental protection. Meanwhile, the huge excavation supporting engineering amount causes large investment in water inlet engineering and long construction period, and directly influences the economic rationality of the whole engineering.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a water conservancy water and electricity water inlet arrangement structure that effectively reduces the influence of construction to surrounding environment is provided to the better all ring edge borders of protecting.

The utility model provides a technical scheme that its technical problem adopted is: water conservancy water and electricity water inlet arrangement structure, including the water inlet end, the inside cavity of water inlet end sets up in the below ground of side slope, inside cavity is through the water inlet and outside intercommunication of water inlet end.

Further, the inner chamber is communicated with the diversion tunnel.

Further, a gravel settling pond is arranged in the inner cavity.

Further, a bell mouth is arranged in the inner cavity.

Furthermore, an overhaul gate and a working gate are arranged in the bell mouth.

Further, a trash rack is arranged between the bell mouth and the gravel depositing pool.

Further, a reinforcing anchor cable is arranged in the inner area of the side slope above the inner cavity.

Further, a passive protective net is arranged on the ground surface of the side slope.

Further, a vent hole is arranged in the inner cavity.

The utility model has the advantages that: the internal cavity of the water inlet end is arranged below the ground of the side slope, so that ground engineering is effectively converted into underground engineering as much as possible, the height of the side slope engineering is greatly reduced, the disturbance to the ground can be reduced to the greatest extent, and the environment protection effect is obvious. Meanwhile, the excavation amount is effectively and greatly reduced by the structural design, so that the investment and the construction period are effectively controlled, and obvious economic benefits are obtained. The utility model discloses be particularly useful for among the structural design of the bank side water inlet that the natural side slope is precipitous, the rock condition is better.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Labeled as: the device comprises an air vent 1, a working gate 2, an overhaul gate 3, a bell mouth 4, a trash rack 5, a gravel settling pond 6, a bottom sill elevation 7, a diversion tunnel 8, a sand blocking sill top elevation 9, a lowest power generation water level 10, a check flood level 11, a water inlet top elevation 12, a weak unloading 13, a strong unloading 14, a passive protective net 15, a reinforcing anchor rope 16, a side slope 17, a water inlet end 18, an internal cavity 19 and a water inlet 20.

Detailed Description

The present invention will be further explained with reference to the accompanying drawings.

The water conservancy and hydropower inlet arrangement structure shown in fig. 1 comprises an inlet end 18, an internal chamber 19 of the inlet end 18 is arranged below the ground of the side slope 17, and the internal chamber 19 is communicated with the outside through an inlet 20 of the inlet end 18.

Traditional water conservancy water and electricity water inlet no matter be bank tower type, gate shaft formula or bank slope formula, its water inlet is whole to be open arranging, not only can bring the engineering volume of a large amount of side slopes 17 excavations like this, also can cause very big destruction to ecological environment on every side. The utility model discloses to the defect in the traditional structure, ingenious inside cavity 19 with inlet end 18 sets up in the below ground of side slope 17, inside cavity 19 is through inlet end 18's the entry 20 and outside intercommunication of intaking, adopts the design theory of "excavation less, strong support" promptly, makes the structure of whole inlet end 18 be "cave dwelling" arrangement pattern to great reduction engineering side slope height, effective environmental protection, simultaneously, can reduce engineering excavation supporting capacity by a wide margin, to saving investment, reduction of erection time, have apparent economic benefits.

In order to facilitate the flow of water to the diversion tunnel 8, said internal chamber 19 may optionally be placed in communication with the diversion tunnel 8. In actual use, water flows into the inner chamber 19 through the water inlet 20 and then flows to the diversion tunnel 8 naturally.

In order to achieve a corresponding function of the inner chamber 19, it is possible to choose to provide a gravel basin 6 in said inner chamber 19 and a bell mouth 4 in said inner chamber 19. Meanwhile, the bell mouth 4 can be further preferably provided with an overhaul gate 3 and a working gate 2, and the dirt barrier 5 is preferably arranged between the bell mouth 4 and the gravel depositing pool 6. As shown in figure 1, because the bell mouth 4, the gravel sink 6 and other facilities are sequentially and compactly arranged, the hoist is arranged at the top of the water inlet end 18, and the structures of the water inlet end 18 are uniformly distributed in the hole except the sand blocking ridge. The arrangement type has no blind hole section in front of the gate, the overhaul condition of the arrangement type is basically similar to that of the traditional shore tower type water inlet, and the operation, the maintenance and the overhaul are very convenient. In order to ensure the ventilation requirements of the inner chamber 19, it is preferred that the inner chamber 19 is provided with a ventilation hole 1.

To strengthen the slope above the interior chamber 19, it is preferred that reinforcing tendons 16 be provided in the interior region of the slope above the interior chamber 19. As shown in fig. 1, reinforcing cable 16 may allow for better stress conditions in the interior region of the slope above interior chamber 19, thereby ensuring structural stability and safety of interior chamber 19.

In order to prevent damage to facilities due to rocks or the like, it is preferable that a passive protection net 15 is provided on the ground surface of the side slope 17.

The utility model discloses can effectively avoid engineering high slope, reach the environmental protection and practice thrift the investment simultaneously to and reduce the purpose of time limit for a project, market promotion prospect is very wide.

Claims

1. Water conservancy water and electricity water inlet arrangement structure, its characterized in that: including water inlet end (18), inside cavity (19) of water inlet end (18) set up in the below ground of side slope (17), inside cavity (19) are through water inlet entry (20) and outside intercommunication of water inlet end (18), inside cavity (19) and diversion tunnel (8) intercommunication, be provided with in inside cavity (19) and sink gravel pond (6), be provided with horn mouth (4) in inside cavity (19), be provided with in horn mouth (4) and overhaul gate (3) and work gate (2), be provided with trash rack (5) between horn mouth (4) and the heavy gravel pond (6).

2. A water conservancy and hydropower inlet arrangement as claimed in claim 1, wherein: a reinforcing tendon (16) is provided within the interior region of the slope above the interior chamber (19).

3. A water conservancy and hydropower inlet arrangement as claimed in claim 1, wherein: and a passive protective net (15) is arranged on the ground surface of the side slope (17).

4. A water conservancy and hydropower inlet arrangement as claimed in claim 1, wherein: a vent hole (1) is arranged in the inner cavity (19).