CN214993530U - A seepage prevention structure for river course ecological remediation - Google Patents
A seepage prevention structure for river course ecological remediation Download PDFInfo
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- CN214993530U CN214993530U CN202120591538.XU CN202120591538U CN214993530U CN 214993530 U CN214993530 U CN 214993530U CN 202120591538 U CN202120591538 U CN 202120591538U CN 214993530 U CN214993530 U CN 214993530U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/40—Protecting water resources
- Y02A20/402—River restoration
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Abstract
The utility model belongs to the technical field of river course is administered and specifically relates to a seepage prevention structure for river course ecological remediation is related to, including barrier layer and concrete frame check, concrete frame check includes many cast-in-place sections and a plurality of prefabricated node, prefabricated node includes integrative prefabricated locating piece and a plurality of connecting block that forms, the both ends of every cast-in-place section are connected with the connecting block of a prefabricated node respectively, every prefabricated node all is connected with a plurality of cast-in-place sections respectively through a plurality of connecting blocks, every frame check of concrete frame check is enclosed by many cast-in-place sections and a plurality of prefabricated node end to end connection. Compared with the prior art, the formwork erecting method and the formwork erecting device have the advantages that erecting of the formwork at the corner position of the cross node in the concrete frame is omitted, accordingly, the formwork erecting efficiency of constructors can be improved, and the required time for completing construction of the concrete frame on site is shortened.
Description
Technical Field
The application relates to the field of river channel treatment, in particular to an anti-seepage structure for river channel ecological restoration.
Background
With the rapid development of society, the governance of the river channel by the nation is more and more important. River regulation is a system project, and comprises a plurality of functions of water storage, flood control, ecological landscape improvement and the like. The river ecological restoration is to restore the damaged water body ecological system to a healthy and stable state through the self-regulation and self-organization capability of the ecological system and assisted by artificial measures, and to develop towards a virtuous cycle direction.
A large amount of water in the river course leaks, valuable water resources can be wasted, and the water storage function of the river course is influenced. The traditional river seepage prevention technology usually adopts concrete seepage prevention, and although the seepage problem can be solved by the method, the original aquatic natural conditions are greatly damaged, the connection between a river system and an underground water system and between the river system and a bank slope is completely blocked, and the ecological restoration of the river is not facilitated.
For example, patent with publication number CN210658235U discloses a riverway anti-seepage structure, which comprises a concrete frame, a first loess layer, a composite geotextile layer and a second loess layer, which are sequentially arranged from top to bottom; a sand gravel layer and a sand gravel layer are filled in the concrete frame from top to bottom; the second loess layer is arranged at the bottom of the river channel; the thickness of the side edge of the concrete frame is 10-20cm, and the height of the concrete frame is 35-45 cm; the thickness of the sand gravel layer is 25-35cm, and the thickness of the sand gravel layer is 5-15 cm; and the first loess layer and the second loess layer are both compacted loess.
When the concrete frame in the anti-seepage structure is constructed, because the mode of cast-in-place construction is adopted, a large number of templates need to be erected, particularly, the angle templates need to be spliced at the positions of the cross connection nodes of the concrete frame, construction personnel can splice the angle templates strictly, the templates are more difficult to splice at the angle positions, the proficiency of the template erecting by the construction personnel is high, the efficiency of erecting the template at the angle positions by general construction personnel is lower, and the required working hours for completing the whole concrete frame can be increased.
SUMMERY OF THE UTILITY MODEL
In order to improve the efficiency that constructor erected the template, reduce the engineering time of concrete frame check, this application provides an anti-seepage structure for river course ecological remediation.
The application provides a seepage prevention structure for river course ecological remediation adopts following technical scheme:
the utility model provides an anti-seepage structure for ecological remediation of river course, includes barrier layer and concrete frame check, and the concrete frame check includes many cast-in-place sections and a plurality of prefabricated node, and prefabricated node includes integrative prefabricated locating piece and a plurality of connecting block that forms, and the both ends of every cast-in-place section are connected with the connecting block of a prefabricated node respectively, and every prefabricated node all is connected with a plurality of cast-in-place sections respectively through a plurality of connecting blocks, and every frame check of concrete frame check is enclosed by many cast-in-place sections and a plurality of prefabricated node end to end connection.
Through adopting above-mentioned technical scheme, the prefabricated node of concrete frame all is prefabricated in batches in the prefabrication factory and forms, transports to the scene again, treats river course barrier layer flattening compaction, and constructor places prefabricated node on the barrier layer according to the position that confirms, then constructor establishes the template that is used for pouring cast-in-place area between per two adjacent prefabricated nodes. When erecting the template, constructors only need to support the template tightly on the connecting blocks of the prefabricated nodes, and the erection of the template for pouring the cast-in-place section can be completed, so that the erection of the template at the corner position of the cross node in the concrete frame lattice is omitted, the efficiency of erecting the template by the constructors can be improved, and the required time for completing the construction of the concrete frame lattice on site is shortened.
Preferably, the prefabricated nodes are integrally prefabricated to form a combination block on the end face of the connecting block used for being connected with the cast-in-place section.
Through adopting above-mentioned technical scheme, the concrete of pouring the cast-in-place section will wrap up the joint block on the connecting block, increases the area of contact of joint block and cast-in-place section, is favorable to promoting the bonding strength between cast-in-place section and the connecting block terminal surface.
Preferably, connecting reinforcing steel bars used for being connected with the cast-in-place section are embedded in the connecting blocks, and the connecting reinforcing steel bars penetrate out from one ends, far away from the corresponding connecting blocks, of the combining blocks.
By adopting the technical scheme, the connecting reinforcing steel bar can further enhance the connecting strength of the joint part of the cast-in-place section and the connecting block, and the probability of larger cracks between the cast-in-place section and the connecting block is reduced.
Preferably, reinforcing steel bars are arranged in the cast-in-place sections and are respectively connected with connecting steel bars in connecting blocks at two ends of the cast-in-place sections.
Through adopting above-mentioned technical scheme, the reinforcing bar can strengthen cast-in-place section self structural strength to reinforcing bar links together the back with the splice bar, can strengthen holistic atress performance of concrete sash and structural strength.
Preferably, the limiting block is provided with a positioning hole in a penetrating manner, and a positioning steel bar inserted into the anti-seepage layer is arranged in the positioning hole.
By adopting the technical scheme, a constructor firstly determines the position of the positioning steel bar through measurement, and then sleeves the positioning block on the positioning steel bar through the positioning hole, so that the position of the prefabricated node can be determined quickly and conveniently.
Preferably, an orifice at one end of the positioning hole on the positioning block is arranged in a flaring manner.
Through adopting above-mentioned technical scheme, the locating hole drill way that the flaring set up for in the locating reinforcement gets into the locating hole more easily, constructor can be more convenient when overlapping the locating piece on the locating reinforcement.
Preferably, the positioning block is provided with a plurality of limiting holes, and limiting steel bars inserted into the impermeable layer are arranged in the limiting holes.
By adopting the technical scheme, after the position of the prefabricated node is determined, a constructor inserts a limiting reinforcing steel bar into each limiting hole of the positioning block and hammers the limiting reinforcing steel bar into the anti-seepage layer, the prefabricated node cannot rotate around the positioning reinforcing steel bar, and after the position of the prefabricated node is stabilized, the formwork support of a cast-in-place section connected with the same prefabricated node cannot be influenced mutually.
Preferably, the positioning block is provided with a lifting lug for lifting.
Through adopting above-mentioned technical scheme, the setting of lug provides the application of force position for lifting by crane prefabricated node, and convenient hoist and mount, transportation and the location to prefabricated node.
In summary, the present application includes at least one of the following beneficial technical effects:
1. by arranging the positioning blocks and the connecting blocks in the prefabricated nodes, the supporting of the corner template is omitted, so that the speed of supporting the template can be increased, and the time for completing the construction of the concrete frame on site is shortened;
2. the arrangement of the connecting steel bars and the reinforcing steel bars can enhance the overall stress performance and structural strength of the concrete sash;
3. through the setting of locating hole, positioning steel bar, spacing hole and spacing reinforcing bar, can be fast and conveniently carry out the location of prefabricated node, still can stabilize the position of prefabricated node.
Drawings
FIG. 1 is a schematic structural view showing a barrier structure according to an embodiment of the present application;
FIG. 2 is a schematic diagram showing the connection of a prefabricated node to a cast-in-place section;
fig. 3 is a schematic diagram showing the structure of the bottom of a prefabricated node.
Description of reference numerals: 1. an impermeable layer; 11. a first loess layer; 12. compounding a geotextile layer; 13. a second loess layer; 2. a fastening layer; 21. a layer of sand and pebbles; 22. a layer of sand gravel; 23. concrete frame lattice; 231. prefabricating nodes; 2311. positioning blocks; 2312. connecting blocks; 2313. a combining block; 2314. connecting reinforcing steel bars; 2315. positioning holes; 2316. a limiting hole; 2317. lifting lugs; 232. a cast-in-place section; 2321. reinforcing steel bars; 233. positioning the reinforcing steel bars; 234. limiting the reinforcing steel bars; 3. and (5) template.
Detailed Description
The present application is described in further detail below with reference to figures 1-3.
The embodiment of the application discloses an anti-seepage structure for river course ecological remediation. Referring to fig. 1, the anti-seepage structure comprises an anti-seepage layer 1 and a fastening layer 2 arranged on the anti-seepage layer 1, the anti-seepage layer 1 sequentially comprises a first loess layer 11, a composite geotextile layer 12 and a second loess layer 13 from top to bottom, the fastening layer 2 comprises a concrete frame 23, and a sand gravel layer 21 and a sand gravel layer 22 are sequentially arranged in the concrete frame 23 from top to bottom.
Referring to fig. 1 and 2, the square grid-shaped concrete frame 23 includes a plurality of cast-in-place sections 232 and a plurality of prefabricated nodes 231, two ends of each cast-in-place section 232 are connected with one prefabricated node 231, one prefabricated node 231 is connected with four cast-in-place sections 232, and each grid of the concrete frame 23 is defined by four cast-in-place sections 232 and four prefabricated nodes 231 which are spaced and sequentially connected end to end. The prefabricated nodes 231 comprise positioning blocks 2311 with square cross sections, the side walls of the periphery of each positioning block 2311 are provided with connecting blocks 2312, the cross sections of the four connecting blocks 2312 are identical, the four connecting blocks 2312 and the positioning blocks 2311 are integrally formed in a pouring mode, and each cast-in-place section 232 is connected with one connecting block 2312 in the adjacent prefabricated node 231.
The prefabricated node 231 is formed by casting in advance in a prefabricated factory and then transported to the site for installation. When the concrete frame 23 is constructed, a constructor firstly lays out the line to position and fix the position of each prefabricated node 231, and then a cast-in-place section 232 is poured between every two adjacent prefabricated nodes 231. When the formwork 3 for pouring the cast-in-place section 232 concrete is erected, the erection of the corner formwork 3 required in the integrally poured concrete frame 23 is completed in the prefabrication field by the pre-pouring of the prefabricated nodes 231, so that the erection of the cast-in-place section 232 formwork 3 can be completed by directly supporting the formwork 3 on two sides of the connecting blocks 2312 by field constructors, the speed of erecting the formwork 3 for pouring the concrete frame 23 can be greatly increased, and the construction time of the concrete frame 23 on the field is shortened.
Referring to fig. 2, in each prefabricated node 231, a coupling block 2313 is disposed on an end surface of the connecting block 2312 away from the positioning block 2311, the cross section of the coupling block 2313 is smaller than that of the connecting block 2312, and the coupling block 2313 is integrally cast with the connecting block 2312 and the positioning block 2311. When the cast-in-place section 232 is poured, the cast-in-place concrete can wrap the combining block 2313, the contact area between the combining block 2313 and the cast-in-place section 232 can be increased, and the improvement of the combining strength between the cast-in-place section 232 and the end face of the connecting block 2312 is facilitated.
Referring to fig. 2, connecting steel bars 2314 are pre-embedded in each prefabricated node 231, two opposite connecting blocks 2312 in each prefabricated node 231 are in a group, a group of connecting steel bars 2314 are pre-embedded correspondingly in one group of connecting blocks 2312, the number of the connecting steel bars 2314 is four, the length direction of each connecting steel bar 2314 is the same as the arrangement direction of the corresponding two connecting blocks 2312, the four connecting steel bars 2314 in the same group are distributed in a rectangular shape, and the end of each prefabricated steel bar penetrates out of the end face of a combining block 2313 on the connecting block 2312 on the same side. Four reinforcing steel bars 2321 are arranged in each cast-in-place section 232, the length direction of each reinforcing steel bar 2321 is the same as that of each cast-in-place section 232, and the four reinforcing steel bars 2321 are respectively in one-to-one correspondence with and connected with the four connecting steel bars 2314 in the same direction in the adjacent prefabricated nodes 231.
After the formwork 3 of the cast-in-place section 232 is erected, a constructor places reinforcing steel bars 2321 at intervals between the two formworks 3, two ends of each reinforcing steel bar 2321 are bound and connected with the corresponding connecting steel bar 2314 through binding wires, after the cast-in-place section 232 is poured, concrete of the cast-in-place section 232 can wrap the end portions of the reinforcing steel bars 2321 and the end portions of the connecting steel bars 2314, the connecting steel bars 2314 can further enhance the connecting strength of the joint portion of the cast-in-place section 232 and the connecting block 2312, the probability of large cracks between the cast-in-place section 232 and the connecting block 2312 is reduced, the reinforcing steel bars 2321 are used for enhancing the structural strength of the cast-in-place section 232, and after the reinforcing steel bars 2321 and the connecting steel bars 2314 are connected together, the whole stress performance and the structural strength of the concrete lattice 23 can be enhanced.
Referring to fig. 2 and 3, when each prefabricated node 231 is manufactured, a positioning hole 2315 is reserved on the positioning block 2311, the cross section of the positioning hole 2315 is circular, the positioning hole 2315 is communicated with the top surface and the bottom surface of the positioning block 2311, a positioning steel bar 233 penetrates through the positioning hole 2315, and the positioning steel bar 233 can slide in the positioning hole 2315 along the length direction of the positioning hole 2315. Before determining the position of the positioning block 2311, a constructor determines the position of the positioning steel bar 233, hammers the positioning steel bar 233 into the impermeable layer 1, sleeves the positioning block 2311 on the positioning steel bar 233, and determines the position of the prefabricated node 231, so that the prefabricated node 231 can be positioned more quickly and conveniently. In order to conveniently sleeve the positioning block 2311 on the positioning steel bars 233, the opening of the positioning hole 2315 on the bottom surface of the positioning block 2311 is flared, and the positioning steel bars 233 can smoothly enter the positioning hole 2315.
Referring to fig. 2 and 3, a limiting hole 2316 is reserved on each of two sides of the positioning hole 2315 on the positioning block 2311, the length direction of each limiting hole 2316 is parallel to the length direction of the positioning block 2311, each limiting hole 2316 penetrates through the positioning block 2311, the cross section of each limiting hole 2316 is circular, and a limiting steel bar 234 is embedded in each positioning hole 2315. After the positioning blocks 2311 are sleeved on the positioning steel bars 233, a constructor inserts each limiting hole 2316 into one limiting steel bar 234 from top to bottom and hammers the limiting steel bars 234 into the impermeable layer 1, the rotating state of the prefabricated nodes 231 is restrained, and after the positions of the prefabricated nodes 231 are stabilized, the templates 3 of the cast-in-place sections 232 connected with the same prefabricated node 231 cannot be influenced by the rotation of the prefabricated nodes 231 during supporting and reinforcing.
Each prefabricated node 231 is provided with a lifting lug 2317 for lifting the prefabricated node 231, two lifting lugs 2317 are arranged on one prefabricated node 231, and the lifting lugs 2317 are fixedly connected to the top surfaces of positioning blocks 2311 of the prefabricated nodes 231. The lifting lugs 2317 are used as force application positions for lifting the prefabricated nodes 231, construction personnel use lifting machinery to finish lifting and transporting of the prefabricated nodes 231 by hanging the lifting lugs 2317, the prefabricated nodes 231 are lifted by hanging the lifting lugs 2317 when the prefabricated nodes 231 are positioned, time is provided for the construction personnel to enable the positioning holes 2315 to be over against the positioning steel bars 233, and the construction personnel can position the prefabricated nodes 231 conveniently.
The implementation principle of the embodiment of the application is as follows: the integral cast-in-place concrete frame 23 is improved to be formed by partial prefabrication and cast-in-place, the position of each cross connection node in the concrete frame 23 is prefabricated into a prefabricated node 231 in advance, and then the prefabricated nodes 231 are lifted to the site to be installed.
When the concrete frame 23 is constructed, a constructor firstly pays off lines to determine the position of each prefabricated node 231, then a cast-in-place section 232 is poured between every two adjacent prefabricated nodes 231, and because the operation of erecting the template 3 at the corner position is completed by the pre-pouring of the prefabricated nodes 231, the constructor directly supports the templates 3 at two sides of the connecting blocks 2312 respectively at the site, the erecting of the template 3 of the cast-in-place section 232 can be completed, so that the erecting speed of the template 3 for the cast-in-place part in the construction concrete frame 23 can be greatly accelerated, and the construction time of the concrete frame 23 at the site is shortened.
Connecting steel bars 2314 are pre-embedded in each prefabricated node 231, reinforcing steel bars 2321 are bound and connected with the connecting steel bars 2314 before each cast-in-place section 232 is poured, the connecting steel bars 2314 can further enhance the connecting strength of the joint of the cast-in-place sections 232 and the connecting blocks 2312, and the whole stress performance and structural strength of the concrete lattice 23 can be enhanced after the reinforcing steel bars 2321 are connected with the connecting steel bars 2314.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides an anti-seepage structure for river course ecological remediation, includes barrier layer (1) and concrete frame (23), its characterized in that: concrete frame (23) include many cast-in-place sections (232) and a plurality of prefabricated node (231), prefabricated node (231) are including integrative prefabricated locating piece (2311) and a plurality of connecting block (2312) that form, the both ends of every cast-in-place section (232) are connected with connecting block (2312) of a prefabricated node (231) respectively, every prefabricated node (231) all are connected with a plurality of cast-in-place sections (232) respectively through a plurality of connecting block (2312), every sash of concrete frame (23) is enclosed by a plurality of cast-in-place sections (232) and a plurality of prefabricated node (231) end to end connection.
2. The seepage-proofing structure for river ecological restoration according to claim 1, wherein the seepage-proofing structure comprises: the prefabricated node (231) is integrally prefabricated with a combination block (2313) on the end face of the connecting block (2312) for connecting with the cast-in-place section (232).
3. The seepage-proofing structure for river ecological restoration according to claim 2, wherein the seepage-proofing structure comprises: connecting steel bars (2314) used for being connected with the cast-in-place sections (232) are embedded in the connecting blocks (2312), and the connecting steel bars (2314) penetrate out from one ends, far away from the corresponding connecting blocks (2312), of the combining blocks (2313).
4. The seepage-proofing structure for river ecological restoration according to claim 3, wherein the seepage-proofing structure comprises: and reinforcing steel bars (2321) are arranged in the cast-in-situ section (232), and the reinforcing steel bars (2321) are respectively connected with connecting steel bars (2314) in connecting blocks (2312) at two ends of the cast-in-situ section (232).
5. The seepage-proofing structure for river ecological restoration according to claim 1, wherein the seepage-proofing structure comprises: the limiting block is provided with a positioning hole (2315) in a penetrating manner, and a positioning steel bar (233) inserted into the impermeable layer (1) is arranged in the positioning hole (2315).
6. The seepage-proofing structure for river ecological restoration according to claim 5, wherein the seepage-proofing structure comprises: an orifice at one end of the positioning hole (2315) on the positioning block (2311) is in flaring arrangement.
7. The seepage-proofing structure for river ecological restoration according to claim 5, wherein the seepage-proofing structure comprises: the positioning block (2311) is provided with a plurality of limiting holes (2316), and limiting steel bars (234) inserted into the impermeable layer (1) are arranged in the limiting holes (2316).
8. The seepage-proofing structure for river ecological restoration according to claim 7, wherein the seepage-proofing structure comprises: the positioning block (2311) is provided with a lifting lug (2317) for lifting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120591538.XU CN214993530U (en) | 2021-03-23 | 2021-03-23 | A seepage prevention structure for river course ecological remediation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120591538.XU CN214993530U (en) | 2021-03-23 | 2021-03-23 | A seepage prevention structure for river course ecological remediation |
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| Publication Number | Publication Date |
|---|---|
| CN214993530U true CN214993530U (en) | 2021-12-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120591538.XU Active CN214993530U (en) | 2021-03-23 | 2021-03-23 | A seepage prevention structure for river course ecological remediation |
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| CN (1) | CN214993530U (en) |
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2021
- 2021-03-23 CN CN202120591538.XU patent/CN214993530U/en active Active
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