CN212714844U

CN212714844U - Dam foundation structure

Info

Publication number: CN212714844U
Application number: CN202021094934.3U
Authority: CN
Inventors: 潘国勇; 李建中; 吴君芳; 沃延丰; 金霞; 徐雅琴
Original assignee: Hangzhou Fuxiu Construction Engineering Co ltd
Current assignee: Hangzhou Fuxiu Construction Engineering Co ltd
Priority date: 2020-06-13
Filing date: 2020-06-13
Publication date: 2021-03-16
Anticipated expiration: 2030-06-13

Abstract

The utility model relates to a dam body foundation structure relates to hydraulic engineering's technical field, and it includes the upstream face, has seted up a plurality of grit chambers that are located the co-altitude on the upstream face, be provided with an upper end open-ended sieve section of thick bamboo in the grit chamber. The utility model discloses can make silt deposit the accumulation at the dam body not co-altitude, can not pile up in a large number in the dam body bottom, convenient clearance.

Description

Dam foundation structure

Technical Field

The utility model belongs to the technical field of hydraulic engineering's technique and specifically relates to a dam foundation structure is related to.

Background

Dams are typically more common rock fill dams. The main body of the rock-fill dam body is a dam which is built by filling stone and matching with an anti-seepage body. It is one kind of earth-rock dam. The dam body has the advantages of full utilization of local natural materials, adaptability to different geological conditions, simple construction method, good earthquake resistance and the like. The defects are that a construction diversion and flood discharge building is generally required to be arranged outside the dam body.

A patent with a publication number of CN208023513U in china discloses a dam structure, which comprises a dam body, a dam top, an outer dam facing and an inner dam facing, wherein the dam body is provided with a coarse gravel layer, the left side of the inner dam facing is provided with a fine gravel layer, the left side of the fine gravel layer is provided with a rubber layer, the left side of the rubber layer and the lower part of the dam top are both provided with an impermeable geomembrane, the left side and the upper part of the impermeable geomembrane are both provided with reinforced concrete layers, and the bottom of the reinforced concrete layers is provided with reinforcing feet. The utility model discloses a reinforced concrete layer through the surface is equipped with realizes having better shock resistance, anti-cracking performance, can effectively prevent the seepage of water, through the design on prevention of seepage geomembrane and rubber layer, can regard as the further guarantee under the water seepage emergence condition, has increased the reliability and the security of the dam body, sets up the slope protection net through dam facing outside, has suppressed the emergence of dam soil erosion phenomenon, and dam facing has consolidated interior dam facing more through the reinforcement foot of interior dam facing footing department.

The above prior art solutions have the following drawbacks: although the dam body structure can prevent water leakage and water and soil loss, a large amount of silt is accumulated at the bottom of the dam body, and the dam body structure is troublesome to clean.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a dam foundation structure, it can make silt deposit the accumulation at the dam body co-altitude not, can not pile up in a large number in the dam body bottom, convenient clearance.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

a dam foundation structure comprises a water-facing surface, a plurality of sand settling tanks with different heights are arranged on the water-facing surface, and screen cylinders with openings at upper ends are arranged in the sand settling tanks

Through adopting above-mentioned technical scheme, the silt of different water levels can be depositd to the grit chamber of co-altitude, and a sand section of thick bamboo in the grit chamber can be collected silt to a sand section of thick bamboo, and when sediment deposit was more in the sand section of thick bamboo, it was more convenient to change a sand section of thick bamboo messenger and clear up, also can avoid the whole sediment of silt to the dam body bottom.

The present invention may be further configured in a preferred embodiment as: the screen drum is characterized in that fixing edges parallel to the upstream face are fixedly arranged on two sides of an opening of the screen drum, vertical fixing holes are formed in the fixing edges on the surface of the upstream face, vertical grooves opposite to the fixing holes are formed in the upstream face, fixing rods are fixedly arranged in the grooves, and the upper ends of the fixing rods penetrate out of the fixing holes.

Through adopting above-mentioned technical scheme, when operating personnel installed a sieve section of thick bamboo, only need with the dead lever of fixed orifices alignment, insert the dead lever fixed orifices, can restrict a sieve section of thick bamboo in the grit chamber. When the screen drum needs to be taken, the worker only needs to extract the fixing rod from the fixing hole, so that the screen drum can be separated from the grit chamber, and the screen drum is convenient to replace and operate.

The present invention may be further configured in a preferred embodiment as: and the fixed rod is provided with a bolt hole parallel to the fixed edge, and a bolt is inserted in the bolt hole.

Through adopting above-mentioned technical scheme, after the dead lever inserted the recess, if rivers too big can go out the recess with the dead lever, during the bolt inserted the keyhole, can make stable the inserting of dead lever locate the recess to with the stable installation of a sieve section of thick bamboo in the grit chamber.

The present invention may be further configured in a preferred embodiment as: the screen drum comprises a sand storage box, a plurality of draining holes are formed in the bottom of the sand storage box, and sand inlet holes are formed in the top of the sand storage box.

Through adopting above-mentioned technical scheme, store up the husky box and be used for storing sedimentary silt, silt falls into from advancing the sand hole and stores up the husky box. When the sand storage box is taken out, the water in the sand storage box can be drained through the water draining holes, and only the sand is taken out and taken.

The present invention may be further configured in a preferred embodiment as: and a plurality of barbs are vertically and fixedly arranged on the outer wall of the top of the sand storage box.

Through adopting above-mentioned technical scheme, the barb can be caught on the levitate debris such as pasture and water that get into in the sieve section of thick bamboo, and debris can not get back to the aquatic again when water moves back out, makes the surface of water cleaner.

The present invention may be further configured in a preferred embodiment as: the sand storage box is characterized in that a horizontal slot is formed in the side wall of the sand storage box, a horizontal insert block is connected in the slot in a sliding mode through a connecting spring, a horizontal insert hole is formed in the side wall of the screen cylinder, and the insert block extends out of the insert hole when the connecting spring is in the original length.

Through adopting above-mentioned technical scheme, the inserted block slides in the jack, pushes the inserted block or pulls out the slot, can install or take off from a sieve section of thick bamboo with storing up the sandbox. When the sand in the sand storage box is full, the sand storage box is directly dismounted, and a new sand storage box is replaced, so that the operation is convenient.

The present invention may be further configured in a preferred embodiment as: the upstream face is provided with a water chute, and the water chute comprises a water inlet arranged at the bottom of the sand settling tank and a water outlet arranged on the surface of the upstream face.

By adopting the technical scheme, the water level is reduced after the tide is faded, and the water accumulated in the screen cylinder can flow out from the draining hole and then flows back from the water outlet through the water through hole and the water guide groove. When the tide comes off, the sand storage box is taken, and no water is stored in the sand storage box, so that the sand storage box is convenient to take and is light.

The present invention may be further configured in a preferred embodiment as: the water outlet is provided with a sand-proof net.

Through adopting above-mentioned technical scheme, the sand control net can prevent that silt from getting into the guiding gutter, avoids silt to plug up the guiding gutter and influences the water guiding ability.

To sum up, the utility model discloses a following at least one useful technological effect:

1. a sand settling tank is arranged on the upstream face, the sand deposited on different heights can be collected by a screen cylinder in the sand settling tank, the sand can be cleaned by replacing the screen cylinder, and the sand can be prevented from being deposited at the bottom of the dam body;

2. the insert block slides in the jack, and the connecting spring is compressed, so that the sand storage box can be taken down from the screen cylinder. When the silt is fully stored, the screen cylinder can be removed, and the silt storage box can be replaced, so that the operation is more convenient;

3. the barb arranged on the outer wall of the top of the sand storage box can catch sundries such as aquatic weeds and the like, so that the sundries are prevented from returning to the water again, and the pollution to the water quality is reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the embodiment.

Fig. 2 is a partial structural schematic diagram of the embodiment.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

In the figure, 1, upstream; 11. a groove; 2. a grit chamber; 3. a screen cylinder; 31. a fixing edge; 32. a fixing hole; 33. fixing the rod; 331. a keyhole; 34. a bolt; 4. a sand storage box; 41. draining holes; 42. a sand inlet hole; 5. a barb; 6. a slot; 61. a connecting spring; 62. inserting a block; 63. a jack; 7. a water chute; 71. a water inlet; 72. a water outlet; 8. a sand control net.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Examples

Referring to fig. 1 and 2, for the utility model discloses a dam foundation structure, including upstream face 1, the splash is all patted at upstream face 1 when rising tide. A plurality of sand settling tanks 2 are arranged on the upstream face 1, the sand settling tanks 2 are located at different heights of the upstream face 1, and the sand settling tanks 2 can deposit the silt in the water at different heights, so that the situation that the silt completely falls to the bottom of the dam body to cause silting of a water pipeline at the bottom of the dam body is avoided.

Referring to fig. 2 and 3, a screen drum 3 having the same shape as the grit chamber 2 is provided in the grit chamber 2, and the screen drum 3 is used to store the silt falling into the grit chamber 2. The upper end opening of a sieve section of thick bamboo 3, silt and water can get into a sieve section of thick bamboo 3, make silt deposit in a sieve section of thick bamboo 3, avoid too much silt to fall into the dam bottom.

Referring to fig. 2, fixing edges 31 are provided at both sides of the opening of the screen cylinder 3, the fixing edges 31 are fixedly connected with the screen cylinder 3, and the screen cylinder 3 can be fixed in the grit chamber 2 by fixing the fixing edges 31 on the upstream surface 1. Fixed edge 31 is located the surface of upstream face 1 and is parallel with upstream face 1, places a sieve section of thick bamboo 3 and can keep a sieve section of thick bamboo 3 level and a sieve section of thick bamboo 3 and the laminating of upstream face 1 in grit chamber 2. The fixing edge 31 is provided with a vertical fixing hole 32, and the fixing hole 32 is used for fixing the screen cylinder 3 on the upstream surface 1.

Referring to fig. 2, a fixing rod 33 is inserted into the fixing hole 32, a groove 11 for inserting the fixing rod 33 is formed on the surface of the upstream surface 1, and the fixing rod 33 is fixedly connected in the groove 11, so that the end of the fixing rod 33 extends out of the fixing hole 32. The fixing rod 33 is inserted into the fixing hole 32, so that the screen cylinder 3 is limited in the grit chamber 2 for silt collection.

Referring to fig. 2, the fixing rod 33 is provided with a bolt hole 331, and a bolt 34 is inserted into the bolt hole 331, so that the fixing rod 33 can be prevented from falling off from the groove 11 under the impact of water flow, and the screen cylinder 3 can be more stably placed in the grit chamber 2.

Referring to fig. 2, the bolt hole 331 is parallel to the fixing edge 31, and the bolt 34 includes a head, and after the bolt 34 is inserted into the bolt hole 331, the head is located above the bolt hole 331, so that the bolt 34 can be stably inserted into the bolt hole 331, and the screen cylinder 3 is more stably fixed.

Referring to fig. 2 and 3, the screen drum 3 includes a sand storage box 4, the sand storage box 4 is located at the bottom of the screen drum 3, and a sand inlet 42 is provided at the top of the sand storage box 4, so as to ensure that the silt can fall into the sand storage box 4 from the sand inlet 42. A plurality of waterlogging caused by excessive rainfall holes 41 have been seted up to the bottom of storing up husky box 4, and silt stores up in storing up husky box 4 fully, and water can flow out from waterlogging caused by excessive rainfall holes 41 when changing and storing up husky box 4, alleviates the weight of storing up husky box 4 when taking. The draining holes 41 only allow water to pass through, but not silt, so that the silt in the sand storage box 4 can not return to the water again.

Referring to fig. 3, a plurality of barbs 5 are fixed on the outer wall of the top of the sand storage box 4, the barbs 5 are vertically fixed outside the sand storage box 4, and sundries such as aquatic plants and the like can be hooked by the barbs 5 after entering the screen drum 3. After the tide water is removed, the impurities can be collected in the screen cylinder 3 to be intensively cleaned, thereby protecting the environment.

Referring to fig. 3, a horizontal slot 6 is formed in the side wall of the sand storage box 4, a horizontal insert block 62 is connected in the slot 6, the insert block 62 slides in the slot 6, and the insert block 62 can extend out of the slot 6. The side wall of the screen drum 3 is provided with a horizontal jack 63, and the insert block 62 can be inserted into the jack 63 after extending out of the slot 6. The width of the sand storage box 4 is smaller than that of the screen drum 3, and the insert block 62 is inserted into or pulled out of the insert hole 63, so that the sand storage box 4 can be installed on the screen drum 3 or detached from the screen drum 3 for replacement.

Referring to fig. 3, the insertion block 62 is connected to the inside of the insertion slot 6 by a connection spring 61, one end of the connection spring 61 is fixedly connected to the insertion block 62, and the other end is connected to the bottom of the insertion slot 6. The insert block 62 is pressed to slide into the slot 6, the connecting spring 61 is pressed to enable the sand storage box 4 to slide in the screen cylinder 3, when the insert block 62 slides to the position of the jack 63, the connecting spring 61 restores to be original long, the insert block 62 is bounced into the jack 63 and extends out of the jack 63, and therefore the sand storage box 4 is stably fixed on the screen cylinder 3. Store up husky box 4 and store up full back, can take out a sieve section of thick bamboo 3 is whole, only will store up husky box 4 dismantlement change can, convenient operation.

Referring to fig. 2 and 3, the upstream surface 1 is provided with a water chute 7, the water chute 7 includes a water opening 71 and a water outlet 72, the water opening 71 is provided at the bottom of the grit chamber 2, and the water outlet 72 is provided on the surface of the upstream surface 1. When tide water moves away, accumulated water in the grit chamber 2 flows out from the water through opening 71 and flows out from the water outlet 72 through the water guide groove 7, no accumulated water exists in the screen cylinder 3 when silt is cleaned, and the weight of taking the screen cylinder 3 during cleaning can be reduced.

Referring to fig. 1 and 2, the outlet is provided with a sand-proof net 8, and the sand-proof net 8 can only pass through water but can not pass through silt. The sand control net 8 can make the accumulated water flow out from the sand basin 2, and can prevent the external silt from entering the water chute 7, thereby avoiding the blockage of the water chute 7.

The implementation principle of the embodiment is as follows: the insert block 62 is inserted into the insert hole 63 to mount the sand box 4 on the screen cylinder 3, the fixing rod 33 is inserted into the groove 11 and the fixing hole 32, and the bolt 34 is inserted into the bolt hole 331, thereby fixing the screen cylinder 3 in the grit chamber 2. After the sand storage box 4 is full, the screen drum 3 is taken down, and the sand storage box 4 is replaced for reuse. When the tide water is removed, the accumulated water in the screen drum 3 flows out from the water guide groove 7, so that the silt is conveniently cleaned.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A dam foundation structure, includes upstream face (1), its characterized in that: a plurality of sand settling tanks (2) which are positioned at different heights are arranged on the upstream surface (1), and a screen cylinder (3) with an opening at the upper end is arranged in each sand settling tank (2).

2. A dam foundation structure as claimed in claim 1, wherein: the utility model discloses a screen drum, including a sieve section of thick bamboo (3), a fixed edge (31) parallel with upstream face (1) has been set firmly to sieve section of thick bamboo (3) open-ended both sides, and fixed edge (31) are located the surface of upstream face (1) and have seted up vertical fixed orifices (32), set up on upstream face (1) just vertical recess (11) with fixed orifices (32), recess (11) internal fixation has dead lever (33), fixed orifices (32) are worn out to the upper end of dead lever (33).

3. A dam foundation structure as claimed in claim 2, wherein: the fixing rod (33) is provided with a bolt hole (331) parallel to the fixing edge (31), and a bolt (34) is inserted into the bolt hole (331).

4. A dam foundation structure as claimed in claim 1, wherein: the screen drum (3) comprises a sand storage box (4), a plurality of draining holes (41) are formed in the bottom of the sand storage box (4), and a sand inlet hole (42) is formed in the top of the sand storage box (4).

5. A dam foundation structure as claimed in claim 4, wherein: a plurality of barbs (5) are vertically and fixedly arranged on the outer wall of the top of the sand storage box (4).

6. A dam foundation structure as claimed in claim 4, wherein: the sand storage box is characterized in that a horizontal slot (6) is formed in the side wall of the sand storage box (4), a horizontal insert block (62) is connected into the slot (6) in a sliding mode through a connecting spring (61), a horizontal insert hole (63) is formed in the side wall of the screen cylinder (3), and when the connecting spring (61) is original, the insert block (62) stretches out of the insert hole (63).

7. A dam foundation structure as claimed in claim 1, wherein: the upstream face (1) is provided with a water chute (7), and the water chute (7) comprises a water opening (71) arranged at the bottom of the grit chamber (2) and a water outlet (72) arranged on the surface of the upstream face (1).

8. A dam foundation structure as claimed in claim 7, wherein: and a sand prevention net (8) is arranged at the water outlet (72).