CN217148589U - Sedimentary lake salt field with dam body seepage prevention function - Google Patents

Sedimentary lake salt field with dam body seepage prevention function Download PDF

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Publication number
CN217148589U
CN217148589U CN202122953058.6U CN202122953058U CN217148589U CN 217148589 U CN217148589 U CN 217148589U CN 202122953058 U CN202122953058 U CN 202122953058U CN 217148589 U CN217148589 U CN 217148589U
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Prior art keywords
seepage
clay
dam
proofing
dam body
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CN202122953058.6U
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戴丽
谭丰林
谭玉春
刘世慎
刘向峰
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23th Metallurgical Construction Group Co ltd Of Minmetals
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23th Metallurgical Construction Group Co ltd Of Minmetals
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Abstract

The utility model discloses a sedimentary nature lake salt pan with dam body prevention of seepage function, including clay layer and clay dam and two salt ponds of setting at clay layer upside, two salt ponds set up the both sides at the clay dam respectively, and the foundation ditch is reinforceed to the clay layer upside is dug to be equipped with the prevention of seepage, and the foundation ditch is strengthened in the below of clay dam to the prevention of seepage, and the inner wall that the foundation ditch was reinforceed to the prevention of seepage covers has foundation ditch water proof film, and the inslot that foundation ditch water proof film formed is filled with clay. The utility model discloses a various concentration brine distribute and the condition of water level height in the salt pond, it is wide to excavate the prevention of seepage at the relevant position of clay dam bottom and strengthen the foundation ditch to strengthening the foundation ditch width and covering foundation ditch water proof film in the seepage, fundamentally thoroughly breaks the aspect of transversely seeping water, makes the capillary hole on loose clay layer destroyed, blocks the hole seepage.

Description

Sedimentary lake salt field with dam body seepage prevention function
Technical Field
The utility model relates to a salt pan construction technical field especially relates to a sedimentary lake salt pan with dam body prevention of seepage function.
Background
At present, the sedimentary salt lake is used as the most important salt lake in China, and the mineral reserves of sodium, magnesium, potassium, lithium, boron and other salts are huge. Wherein, the seepage prevention of the dam body of the salt pan of the sedimentary lake is the first important link of the salt lake development. However, the lake phase deposition salt layer changes greatly, the clay burial depth of a plurality of dam body foundation grooves is deep, the foundation grooves are deep, the water pressure borne by the combination surface of the original soil layer and the backfill soil of the salt pool foundation grooves is different according to the different water storage depths and concentrations of adjacent salt pools, and the dam body seepage prevention has great hidden trouble in the construction according to the traditional process. According to other salt field investigation results, the average value of the seepage-proofing qualification rate after the construction of the dam body of the sedimentary lake salt field is about 78%, the service life of the dam body is seriously shortened, and great loss is generated for comprehensive utilization of brine.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a sedimentary lake salt pan with dam body prevention of seepage function to solve above-mentioned problem.
In order to realize the above-mentioned purpose, the utility model discloses a sedimentary lake salt pan with dam body prevention of seepage function, be in including clay layer and setting clay dam and two salt ponds of clay layer upside, two the salt pond sets up respectively the both sides of clay dam, the clay layer upside is dug and is equipped with the prevention of seepage and strengthens the foundation ditch, the prevention of seepage is strengthened the foundation ditch and is located the below of clay dam, the inner wall of the foundation ditch is strengthened in the prevention of seepage covers there is foundation ditch water proof film, the inslot that foundation ditch water proof film formed is filled with clay.
Furthermore, an anti-slip assembly is arranged between the clay dam and the clay layer, the anti-slip assembly comprises an upper pressing strip and a lower pressing strip which are connected through a fastening piece in a fitting mode, and the end portions of two sides of the foundation trench waterproof film extend to the position between the clay dam and the clay layer and are in compression joint with the upper pressing strip and the lower pressing strip.
Furthermore, a dam body seepage-proofing boss is arranged above the seepage-proofing reinforcing base groove, a dam body waterproof film covers the outer side of the dam body seepage-proofing boss, and the end parts of the two sides of the dam body waterproof film are in compression joint between the upper pressing strip and the lower pressing strip.
Furthermore, a dam body embedded groove is dug in the upper side of the clay layer, the seepage-proofing strengthening foundation groove is arranged at the bottom of the dam body embedded groove, and the bottom of the clay dam is in embedded lap joint in the dam body embedded groove.
Furthermore, dam body inclined planes are arranged on two sides of the clay dam, and the inclination of the dam body inclined planes is 1:2.5-1: 1.5.
Further, when the water level height of one of the two salt ponds is greater than that of the other salt pond and the brine concentration is less than that of the other salt pond, the anti-seepage strengthening base groove is arranged close to one of the salt ponds.
Furthermore, the anti-seepage strengthening foundation trench is dug at the outer side edge close to the footing sideline of the clay dam.
Further, when two the brine concentration difference in salt pond is great, the foundation ditch is reinforceed to the prevention of seepage sets up to the multichannel, just the degree of depth of foundation ditch is the gradient setting that the degree of depth reduces from the less salt pond of concentration to the great salt pond of concentration to the prevention of seepage.
Furthermore, the width of the anti-seepage reinforced foundation trench is the width of a bucket of the excavator.
Furthermore, the digging depth of the anti-seepage strengthening foundation groove is in a negative correlation with the brine concentration of the salt pond.
Compared with the prior art, the utility model has the advantages of:
the utility model discloses a various concentration brine distribution and the condition of water level height in the salt pond, excavate prevention of seepage at the relevant position of clay dam bottom and strengthen the base groove width to ooze and strengthen the base groove width and cover the base groove water-proof film, fundamentally thoroughly break the horizontal infiltration aspect, make the capillary hole of loose clay layer destroyed, block the hole seepage; meanwhile, the clay layer and the clay dam are in embedded lap joint, and when the salt pan is injected with water, the clay in the embedded groove of the clay dam is under the double acting forces of gravity extrusion and water absorption expansion of the clay dam, so that the dam foundation and the dam body are perfectly embedded, and the purpose of improving the seepage-proofing qualification rate of the dam body is achieved.
The present invention will be described in further detail below with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic structural view of a sedimentary lake salt pan with a dam body seepage-proofing function, which is disclosed by the embodiment of the utility model;
FIG. 2 is a schematic structural view of an anti-seepage boss and an anti-seepage reinforcing base groove of a dam body disclosed in the first embodiment of the present invention;
fig. 3 is a schematic structural diagram of an anti-slip assembly according to an embodiment of the present invention;
FIG. 4 is a schematic structural view of a sedimentary lake salt pan with a dam body seepage-proofing function disclosed in the second embodiment of the present invention;
fig. 5 is a schematic structural view of a sedimentary lake salt pan with a dam body seepage-proofing function disclosed in the third embodiment of the present invention.
Illustration of the drawings:
1. a clay layer; 2. clay dam; 21. a dam body inclined plane; 3. a salt pond; 4. an anti-seepage reinforced foundation pit; 5. a dam body embedding groove; 6. a base groove water-proof film; 7. an anti-seepage boss of the dam body; 8. a dam body waterproof film; 9. an anti-skid component; 91. pressing strips; 92. and pressing the strips.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
The first embodiment is as follows:
as shown in fig. 1-3, the utility model discloses a sedimentary lake salt field with dam body prevention of seepage function, including clay layer 1 and setting clay dam 2 and two salt ponds 3 at clay layer 1 upside, two salt ponds 3 set up respectively in the both sides of clay dam 2, and the foundation ditch 4 is reinforceed to clay layer 1 upside is dug to be equipped with the prevention of seepage, and the foundation ditch 4 is reinforceed to the prevention of seepage is located the below of clay dam 2, and the foundation ditch 4 excavation is reinforceed to the prevention of seepage is accomplished the back, and the clay of digging out can directly be used for backfilling the damming, need not transport once more, convenient and practical. The inner wall of the seepage-proofing reinforced foundation trench 4 is covered with a foundation trench water-proof film 6, and the foundation trench water-proof film 6 can be a common plastic film, preferably a degradable film with longer service life, so that the environment is protected. The groove formed by the foundation trench water-proof film 6 is filled with clay, so that the horizontal water seepage layer surface is completely isolated by the foundation trench water-proof film 6 in the anti-seepage reinforced foundation trench 4, the capillary pores of the loose clay layer 1 are damaged, and the pore seepage is blocked; meanwhile, after the clay dam 2 is built according to the method, the service life of the dam body and the comprehensive utilization rate of brine are greatly improved, the maintenance cost in the later-stage production of the dam body is saved, and the production benefit of a salt field is improved.
In this embodiment, the anti-slip assembly 9 is arranged between the clay dam 2 and the clay layer 1, so that the base groove water-proof film 6 is prevented from being dragged to the anti-seepage strengthening base groove 4, the anti-slip assembly 9 comprises an upper pressing strip 91 and a lower pressing strip 92 which are connected in an attaching mode through fasteners such as bolts, the upper pressing strip 91 and the lower pressing strip 92 are made of degradable wood, the upper pressing strip 91 and the lower pressing strip 92 are sawn into two parts, the end parts of two sides of the base groove water-proof film 6 extend to the space between the clay dam 2 and the clay layer 1 and are connected in a pressing mode between the upper pressing strip 91 and the lower pressing strip 92, and dragging resistance is increased through the anti-slip assembly 9.
Similarly, in order to prevent the clay dam 2 above the clay layer from leaking, a dam body seepage-proofing boss 7 is arranged above the seepage-proofing reinforcing base groove 4, the dam body seepage-proofing boss 7 can be properly adjusted according to the depth of the salt pond 3, the deeper the salt pond 3 is, the higher the dam body seepage-proofing boss 7 is, the outer side of the dam body seepage-proofing boss 7 is also covered with a dam body water-proofing film 8, the dam body water-proofing film 8 and the base groove water-proofing film 6 are made of the same material, and the end parts of the two sides of the dam body water-proofing film 8 are pressed between the upper pressing strip 91 and the lower pressing strip 92, so that seepage capillary pores are prevented from being formed inside the clay dam 2.
In this embodiment, a dam body embedded groove 5 is dug on the upper side of the clay layer 1, the seepage-proofing reinforcing foundation groove 4 is arranged at the bottom of the dam body embedded groove 5, and the bottom of the clay dam 2 is embedded and lapped in the dam body embedded groove 5, so that when water is injected into the salt pan, clay in the dam body embedded groove 5 is perfectly embedded with the dam body under the double acting forces of gravity extrusion and water absorption expansion of the dam body, and the purpose of improving the seepage-proofing qualification rate of the dam body is achieved.
In the embodiment, the cross section of the clay dam 2 is trapezoidal, the dam body inclined planes 21 are arranged on two sides of the clay dam 2, and the inclination of the dam body inclined planes 21 is 1:2, so that the structure of the clay dam 2 is more stable.
In this embodiment, the excavation depth of the anti-seepage strengthening foundation trench 4 is inversely related to the brine concentration in the salt pond 3, and the better the quality, the larger the brine concentration, the shallower the excavation depth, and on the contrary, the deeper the excavation depth.
In this embodiment, the width B of the anti-seepage reinforcing base groove 4 is a bucket width of the excavator, and is determined according to the model of the excavator, the excavator for excavating the base groove of the dam body can be directly used for excavating, other mechanical equipment and materials are not required to be additionally added, the operation is simple, and the excavating efficiency and quality are ensured.
Example two:
as shown in fig. 4, in this embodiment, when the water level of one of the two salt ponds 3 is higher than that of the other salt pond 3, and the brine concentration is lower than that of the other salt pond 3, the anti-seepage strengthening base groove 4 is disposed close to the one salt pond 3, that is, close to the salt pond 3 with the high water level and the low brine concentration, specifically, during excavation, the anti-seepage strengthening base groove 4 is excavated close to the outer side edge of the footing side line of the clay dam 2, and the covering manner of the base groove water-stop film 6 is not illustrated, but is the same as that in the first embodiment.
Example three:
as shown in fig. 5, in this embodiment, when the brine concentrations of the two salt ponds 3 are greatly different, the seepage-proofing reinforcing base grooves 4 are arranged in multiple ways, in this embodiment, three ways, and the depth of the seepage-proofing reinforcing base grooves 4 is arranged in a gradient manner, with the depth decreasing from the salt pond 3 with a smaller concentration to the salt pond 3 with a larger concentration. Similarly, the base groove water-stop film 6 is covered in the same manner as in the first embodiment, although not shown.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. The sedimentary lake salt pan with the dam body seepage-proofing function is characterized by comprising a clay layer (1), a clay dam (2) and two salt ponds (3), wherein the clay dam (2) and the two salt ponds (3) are arranged on the upper side of the clay layer (1), the two salt ponds (3) are respectively arranged on two sides of the clay dam (2), an seepage-proofing strengthening foundation groove (4) is dug on the upper side of the clay layer (1), the seepage-proofing strengthening foundation groove (4) is located below the clay dam (2), a foundation groove water-proofing film (6) covers the inner wall of the seepage-proofing strengthening foundation groove (4), and clay is filled in a groove formed by the foundation groove water-proofing film (6).
2. The sedimentary lake salt pan with dam body seepage-proofing function according to claim 1, characterized in that an antiskid component (9) is arranged between the clay dam (2) and the clay layer (1), the antiskid component (9) comprises an upper pressure strip (91) and a lower pressure strip (92) which are connected by a fastener in a fitting manner, and the ends of the two sides of the foundation trench water-proof film (6) extend to between the clay dam (2) and the clay layer (1) and are crimped between the upper pressure strip (91) and the lower pressure strip (92).
3. The sedimentary lake salt pan with the dam body seepage-proofing function according to claim 2, wherein a dam body seepage-proofing boss (7) is arranged above the seepage-proofing reinforcing base groove (4), a dam body water-proofing film (8) covers the outer side of the dam body seepage-proofing boss (7), and the end parts of two sides of the dam body water-proofing film (8) are crimped between the upper pressing strip (91) and the lower pressing strip (92).
4. The sedimentary lake salt pan with dam body seepage-proofing function according to claim 1, characterized in that a dam body embedded groove (5) is dug at the upper side of the clay layer (1), the seepage-proofing strengthening foundation groove (4) is arranged at the bottom of the dam body embedded groove (5), and the bottom of the clay dam (2) is embedded and lapped in the dam body embedded groove (5).
5. The sedimentary lake salt pan with dam body seepage-proofing function according to claim 1, characterized in that dam body inclined planes (21) are arranged on two sides of the clay dam (2), and the inclination of the dam body inclined planes (21) is 1:2.5-1: 1.5.
6. The sedimentary lake salt pan with dam body seepage-proofing function according to claim 1, characterized in that when the water level height of one of the two salt ponds (3) is greater than that of the other salt pond (3) and the brine concentration is less than that of the other salt pond (3), the seepage-proofing reinforcing base groove (4) is arranged close to one of the salt ponds (3).
7. The sedimentary lake salt pan with dam body seepage-proofing function as claimed in claim 6, wherein the seepage-proofing reinforcing foundation trench (4) is dug close to the outer side edge of the footing side line of the clay dam (2).
8. The sedimentary lake salt pan with dam body seepage prevention function according to claim 1, wherein when brine concentrations of two salt ponds (3) are different, the seepage prevention strengthening base groove (4) is arranged in multiple ways, and the depth of the seepage prevention strengthening base groove (4) is arranged in a gradient manner with the depth decreasing from the salt pond (3) with smaller concentration to the salt pond (3) with larger concentration.
9. The sedimentary lake salt pan with dam body seepage-proofing function according to any one of claims 1 to 8, wherein the digging depth of the seepage-proofing reinforcing foundation groove (4) is in negative correlation with the brine concentration of the salt pond (3).
CN202122953058.6U 2021-11-29 2021-11-29 Sedimentary lake salt field with dam body seepage prevention function Active CN217148589U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122953058.6U CN217148589U (en) 2021-11-29 2021-11-29 Sedimentary lake salt field with dam body seepage prevention function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122953058.6U CN217148589U (en) 2021-11-29 2021-11-29 Sedimentary lake salt field with dam body seepage prevention function

Publications (1)

Publication Number Publication Date
CN217148589U true CN217148589U (en) 2022-08-09

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ID=82684251

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122953058.6U Active CN217148589U (en) 2021-11-29 2021-11-29 Sedimentary lake salt field with dam body seepage prevention function

Country Status (1)

Country Link
CN (1) CN217148589U (en)

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