CN209891168U - Dredging engineering's floodgate case buried pipe formula outlet structure - Google Patents
Dredging engineering's floodgate case buried pipe formula outlet structure Download PDFInfo
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- CN209891168U CN209891168U CN201920501709.8U CN201920501709U CN209891168U CN 209891168 U CN209891168 U CN 209891168U CN 201920501709 U CN201920501709 U CN 201920501709U CN 209891168 U CN209891168 U CN 209891168U
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Abstract
The utility model relates to a dredge floodgate case buried pipe outlet structure of engineering. The drainage main pipeline consists of an inner pipeline, an outer pipeline and a plurality of middle pipelines positioned between the inner pipeline and the outer pipeline, a shared gate box is arranged at the end part of each inner pipeline, gate valves are arranged at the end parts of each outer pipeline, and the outlets of the gate valves are connected with drainage pipelines in a butt joint manner; the gate box comprises a gate box plate and a gate box truss which is fixedly arranged on the outer side of the gate box plate; be equipped with in the top of each drainage trunk line, the outside of floodgate case board and enclose the low bank between fields body, be equipped with top concrete layer on enclosing the low bank between fields top of low bank between fields body, laid the stone layer on the surface of enclosing the low bank between fields side of low bank between fields body, be equipped with the concrete layer of low bank between fields side in the outside of stone layer. The utility model discloses simple structure, easily construction, structural strength are high, the conjugation degree is high, difficult emergence seepage.
Description
Technical Field
The utility model belongs to the technical field of the engineering of dredging, especially, relate to a dredge floodgate case buried pipe outlet structure of engineering.
Background
In the hydraulic reclamation project, the water outlet can be divided into a cofferdam buried pipe type water outlet, a sluice box buried pipe type water outlet, an overflow weir type water outlet, a thin-wall weir type water outlet and the like according to the structural form. For the floodgate case pipe burying type outlet, the cofferdam pipe burying type outlet has the defects that the loss is not easy to control and the phenomenon of pipe blockage of the outlet is easy to occur, and the overflow weir type and thin-wall weir type outlets have the defects of higher manufacturing cost and longer manufacturing period, so that the structural form of the floodgate case pipe burying type outlet is usually adopted to meet the requirement of engineering.
The existing gate box buried pipe type water outlet generally comprises a gate box positioned at the inner side and a buried pipe penetrating the inside and the outside of a reclamation dam, and water in hydraulic fill slurry in the reclamation dam sequentially passes through the gate box and the buried pipe from inside to outside and is finally discharged outside the reclamation dam. Under the general condition, the topography of job site is comparatively complicated, and traditional floodgate case buried pipe formula outlet structure directly builds at original ground and has certain difficulty, takes place aversion scheduling problem easily after the installation moreover, leads to the outlet to become invalid when serious. On the other hand, floodgate case buried pipe formula outlet structure generally is located the cofferdam, and traditional cofferdam is less considered in the construction with the combination problem of outlet structure, this leads to cofferdam and outlet structure to build the back whole bonding strength lower, takes place a great deal of problems such as subsiding, seepage easily in long-term operation in-process, influences engineering quality, causes great engineering loss when serious. Therefore, it is necessary to optimally design a construction structure to solve the above problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a gate box buried pipe type outlet structure of dredging engineering, which solves the technical problems existing in the prior art, and has the advantages of simple structure, easy construction, high structural strength, high combination degree and difficult leakage and the like.
The utility model discloses a solve the technical scheme that technical problem that exists among the well-known technique took and be: a gate box buried pipe type water outlet structure of a dredging project comprises a geotechnical cloth layer arranged on the ground, wherein a bottom concrete layer is arranged on the geotechnical cloth layer, a plurality of main drainage pipelines are arranged on the bottom concrete layer in parallel, each main drainage pipeline is composed of an inner pipeline, an outer pipeline and a plurality of middle pipelines positioned between the inner pipeline and the outer pipeline, a shared gate box is arranged at the end part of the inner pipeline of each main drainage pipeline, gate valves are arranged at the end parts of the outer pipelines of each main drainage pipeline, and outlets of the gate valves are connected with drainage pipelines in a butt joint mode; the gate box comprises a gate box plate and a gate box truss which is fixedly arranged on the outer side of the gate box plate, a plurality of through holes are formed in a plate body at the middle lower part of the gate box plate, and the end part of an inner side pipeline of each main drainage pipeline penetrates through each through hole and is welded and fixed; be equipped with in the top of each drainage trunk line, the outside of floodgate case board and enclose the low bank between fields body, be equipped with top concrete layer on enclosing the low bank between fields top of low bank between fields body, laid the stone layer on the surface that encloses the low bank between fields side of low bank between fields body, be equipped with the concrete layer of back water side in the outside on stone layer, top concrete layer and both integrated into one piece of back water side concrete layer.
The utility model has the advantages that: the utility model provides a simple reasonable floodgate case buried pipe formula outlet structure of dredging engineering of structural design compares with current outlet structure, sets up bottom concrete layer through setting up the geotechnological cloth layer and on the geotechnological cloth layer among this technical scheme, provides a smooth mounting platform for a plurality of drainage trunk lines, makes each drainage trunk line easily install and install the back stability height. The top concrete layer is arranged at the top of the cofferdam body, so that a relatively flat top platform is formed, and the cofferdam can be used as a passage for people and vehicles to pass through. Through setting up the stone layer and setting up the concrete layer of land side in the outside on stone layer at the bank between dam waterback side of enclosing the low bank between. Through installing the gate valve on the main sewer line, make a plurality of main sewer lines can open or close in a controllable way, the flexible operation. This floodgate case buries tubular outlet structure wholeness is high, and the drainage trunk line is high with enclosing low bank between fields body, step stone layer and the concrete layer of leeside, is difficult for taking place to warp, is difficult for the seepage, avoids maintaining at long-time operation in-process.
Preferably: the side slopes at two sides of the gate box are in a horn mouth shape, waterproof geotextile is laid at the water facing sides of the side slopes at two sides, and the lower edges of the waterproof geotextile extend to the bottom of the gate box and are pressed and fixed by a plurality of sand bags.
Preferably: the gate box truss of the gate box comprises a rectangular support which is made of metal profiles in a welding mode, the support is fixedly welded with a gate box plate, two sides of the support are in butt joint with side slopes on two sides, and a gate box panel is fixedly welded to the middle lower portion of the front face of the support.
Preferably: the concrete layer on the back water side covers the position of the tail end of the outer pipeline.
Preferably: the inner side pipeline and the middle pipeline, the two adjacent middle pipelines and the middle pipeline and the outer side pipeline are connected by flange plates, and sealing gaskets are arranged between the two flange plates in butt joint connection.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
fig. 2 is a schematic top view of the present invention.
In the figure: 1. side slope; 2. a brake box; 3. a cofferdam top; 4. a top concrete layer; 5. the backwater side of the reclamation dam; 6. building a stone layer; 7. a concrete layer on the back water side; 8. an outer pipe; 9. a gate box plate; 10. an inner pipe; 11. a ground surface; 12. a geotextile layer; 13. a bottom concrete layer; 14. a gate valve; 15. and (4) a water drainage pipeline.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are described in detail:
referring to fig. 1 and 2, the gate box buried pipe type drainage port structure of the dredging engineering of the present invention includes a geotextile layer 12 disposed on a ground 11, a bottom concrete layer 13 disposed on the geotextile layer 12, and a plurality of main drainage pipes disposed in parallel on the bottom concrete layer 13.
Geotextiles, also known as geotextiles, are water permeable geosynthetic materials made of synthetic fibers by needling or weaving. The geotextile is one of new material geosynthetic materials, the finished product is in a cloth shape, the width is 4-6m generally, the length is 50-100m, and the geotextile is divided into woven geotextile and non-woven filament geotextile, and is a common commercial material in dredging engineering.
The geotextile has the following functions:
1. and (3) isolation, namely isolating building materials (such as soil and sand grains, soil and concrete and the like) with different physical properties (particle size, distribution, consistency, density and the like) by utilizing the polyester staple fiber needle-punched geotextile. The two or more materials are not lost or mixed, the integral structure and function of the materials are kept, and the bearing capacity of the structure is enhanced. 2. And (4) filtering (reverse filtering), wherein when water flows into a coarse material soil layer from a fine material soil layer, the good air permeability and water permeability of the polyester staple fiber needle-punched geotextile are utilized to enable water flow to pass through, so that soil particles, fine sand, small stones and the like are effectively intercepted, and the stability of water and soil engineering is kept. 3. The polyester staple fiber needle-punched geotextile has good water guide performance, can form a drainage channel in a soil body, and discharges redundant liquid and gas in the soil body structure. 4. And (3) adding ribs, namely enhancing the tensile strength and the deformation resistance of the soil body by utilizing the polyester staple fiber needle-punched geotextile, and enhancing the stability of the building structure so as to improve the quality of the soil body. 5. Protection, when rivers erode the soil body, effectual will concentrate stress diffusion, transmission or decomposition, prevent that the soil body from receiving the exogenic action and destroying, its protection soil. 6. The anti-puncture material is combined with the geomembrane to form a composite waterproof anti-seepage material, and plays a role in preventing puncture; the high-strength high-temperature-resistant anti-freezing anti-aging anti-corrosion anti-moth fabric has high tensile strength, good permeability, air permeability, high temperature resistance, freezing resistance, aging resistance and corrosion resistance; polyester staple fiber needle-punched geotextile is a geosynthetic material with wide application. The method is widely applied to projects such as reinforcement of railway subgrade, maintenance of road surface, protection of sports halls and dams, isolation of hydraulic buildings, tunnel construction, coastal mudflat, reclamation, environmental protection and the like.
As shown in the figure, the main drain pipes are composed of an inner pipe 10, an outer pipe 8, and a plurality of intermediate pipes therebetween, a common gate box 2 is attached to an end of the inner pipe 10 of each main drain pipe, a gate valve 14 is attached to an end of the outer pipe 8 of each main drain pipe, and a drain pipe 15 is connected to an outlet of each gate valve 14 in a butt joint manner. The gate box 2 is used as a water collecting well, namely, water in the cofferdam enters the gate box 2 firstly, then enters each main drainage pipeline and finally is discharged out of the cofferdam. Gate valves 14 are used to control the opening and closing of the main drain conduits.
In this embodiment, the inner pipeline 10 and the middle pipeline, the two adjacent middle pipelines, and the middle pipeline and the outer pipeline 8 are connected by flanges, a sealing gasket is arranged between the two flanges in butt joint, and flanges at the inlet and the outlet of the gate valve 14 are respectively in butt joint with the flanges on the outer pipeline 8 and the drainage pipeline 15.
The gate box 2 comprises a gate box plate 9 and a gate box truss which is fixedly arranged on the outer side of the gate box plate 9, a plurality of through holes are formed in a plate body on the middle lower part of the gate box plate 9, and the end parts of the inner side pipelines 10 of the drainage main pipelines penetrate through the through holes and are fixedly welded.
Be equipped with the low bank between fields body in the top of each drainage trunk line, the outside of floodgate case board 9, be equipped with top concrete layer 4 on the low bank between fields top 3 that encloses the low bank between fields body, laid stone layer 6 on the surface that encloses low bank between fields backwater side 5 of low bank between fields body, be equipped with landscaping side concrete layer 7 in stone layer 6's the outside, top concrete layer 4 and landscaping side concrete layer 7 two integrated into one piece. As shown in the figure, the concrete layer 7 on the lee side is covered to the position of the end of the outer pipe 8. The surface of the top concrete layer 4 forms a relatively flat platform of a certain width for the passage of pedestrians and vehicles. Enclose stone layer 6 and the structural strength that landscaping side concrete layer 7 of low bank side 5 was used for promoting the outlet position of low bank side, can effectively avoid the domatic destruction that external force leads to.
As shown in the figure, the side slopes 1 on two sides of the gate box 2 are in a bell mouth shape, waterproof geotextile is laid on the water facing sides of the side slopes 1 on the two sides, and the lower edges of the waterproof geotextile extend to the bottom of the gate box 2 and are pressed and fixed by a plurality of sand bags. In this embodiment, the gate box truss of the gate box 2 includes a rectangular parallelepiped bracket made of a metal profile by welding, the bracket is welded and fixed to the gate box plate 9, two sides of the bracket are butted with the side slopes 1 on two sides, and a gate box panel is welded and fixed to the middle lower portion of the front surface of the bracket. After the mud filled into the reclamation dam is settled, water overflows the gate box panel of the gate box 2 and enters the interior, and is discharged out of the reclamation dam through each main drainage pipeline.
The waterproof geotextile is a geotextile anti-seepage material which is formed by compounding a plastic film serving as an anti-seepage base material and non-woven fabrics. The sand loss can be effectively intercepted, redundant liquid and gas in the soil body structure are discharged, the stability of the building structure is enhanced, the soil body quality is improved, and the sand-soil-retaining agent is a conventional material sold in the market and is widely applied to dredging construction engineering. The waterproof geotextile is mainly used for preventing water in the cofferdam from leaking to the outside through the plain soil particle gaps, and the stability of the whole plain soil cofferdam structure can be improved.
At present, the plastic films for domestic and overseas anti-seepage application mainly comprise polyvinyl chloride (PVC) and Polyethylene (PE), which are high-molecular chemical flexible materials, have small specific gravity, strong extensibility, high deformation adaptability, corrosion resistance, low temperature resistance and good freezing resistance. The main mechanism is that the water leakage channel of the earth dam is separated by the impermeability of the plastic film, and the earth dam bears water pressure and adapts to dam body deformation by the larger tensile strength and elongation; the non-woven fabric is also a high-molecular short fiber chemical material, is formed by needling or hot bonding, has higher tensile strength and extensibility, and not only increases the tensile strength and puncture resistance of the plastic film after being combined with the plastic film, but also increases the friction coefficient of a contact surface due to the rough surface of the non-woven fabric, thereby being beneficial to the stability of a composite geomembrane and a protective layer. Meanwhile, they have better erosion resistance to bacteria and chemical action and are not afraid of the erosion of acid, alkali and salt.
The construction process comprises the following steps:
1. construction preparation, namely positioning the bottom elevation of the excavated foundation pit and the position of a water outlet, preparing materials and related machinery required by construction, and organizing site operators to construct in place;
2. excavating the existing cofferdam by adopting an excavator, and dismantling the part of grouted rock retaining wall, the grouted rock slope protection and the like at the same time, wherein a flat ground is obtained after the cofferdam is excavated, so that the problem of manual uneven pit is avoided, the dismantled rock blocks are stacked nearby for later use, and the earthwork obtained by dismantling the cofferdam is stacked nearby for later use;
3. laying geotextile layers, connecting the geotextile layers in a sewing manner along the width direction, overlapping the adjacent geotextile layers by a width not less than 500mm, and sewing on site by adopting a double-seam sewing process;
4. after the geotextile layers are laid, pouring construction of a bottom concrete layer is immediately carried out, and in order to prevent the geotextile layers laid in the previous process from shifting or folding due to the influence of wind waves, prefabricated templates are placed in order on the geotextile layers according to the determined positions; then, pouring construction of concrete is carried out in the template to obtain a bottom concrete layer, and surface leveling treatment is carried out after the bottom concrete layer is laid;
5. placing a plurality of drainage main pipelines obtained by pre-combination on a bottom concrete layer and carrying out primary fixation;
6. build the floodgate case at the inner welding of each drainage trunk line, specifically: arranging a vertical gate box plate at the inner end, manufacturing a plurality of through holes through a cutting process, enabling inner side pipelines of all main drainage pipelines to penetrate into the through holes and be welded and fixed, then welding a cuboid-shaped support on the gate box plate, and welding and connecting a gate box panel at the middle lower part of the front surface of the support;
7. backfilling earthwork and protecting two sides of the gate box, backfilling by using the removed earthwork, and compacting by layers to obtain a cofferdam body, wherein the cofferdam body is consistent with a cofferdam before excavation in height and width; the side slopes on two sides of the gate box are covered with waterproof geotextile, the lower edge of the waterproof geotextile extends to the lower part of the gate box, the waterproof geotextile is pressed and fixed by adopting a plurality of sand bags, and the waterproof geotextile can prevent the side slopes on two sides of the gate box and the sandy ground at the bottom from being washed when the water outlet drains water, so that the aim of protecting the reclamation dam is fulfilled;
8. set up the stone layer of building stones (partial stone of building stones obtains when the excavation originally encloses the low bank between fields) on enclosing the low bank between fields backwater side of low bank between fields body, later from enclosing the top of low bank between fields body to the integrative concreting in bottom that encloses the low bank between fields backwater side, obtain top concrete layer and backwater side concrete layer, the surface is leveled and is handled.
The advantages are that:
1. the drainage flow is easy to control:
the gate box type water outlet can adjust the opening and closing position of the gate valve according to the water level condition of the field hydraulic filling area, and the water discharge flow is adjusted.
2. Compared with a reclamation-type drainage port structure, the drainage port structure has the characteristics of less loss and strong drainage capacity;
3. for the reclamation pipe type drainage port of the reclamation dam, silt which is not precipitated can be discharged along with water flow, and meanwhile, the flowing power of the silt mainly depends on the natural slope of the reclamation area and the water flow power of the pipe opening, so the water flow power is small, and accumulated water is easily formed at a certain position of the reclamation area. And to this floodgate case formula outlet, it can adjust into water the height wantonly (realize through welding the floodgate case panel of co-altitude not at the floodgate case front), lets the clear water discharge of top layer, and the abundant sediment of mud leans on the floodgate case top simultaneously and provides rivers power with the difference in height of the surface of water in the floodgate case, and its drainage ability is than enclosing the low bank between fields formula outlet ability of burying. Through on-site actual statistics, the loss of the gate box type water outlet is reduced by about 48 percent compared with the loss of the buried pipe type water outlet;
4. compared with an overflow weir type water outlet structure, the structure has the characteristic of low manufacturing cost; according to construction experience, the overflow weir type water outlet structure is cast by concrete, the gate box type water outlet box body is welded by steel plates, and the gate box buried pipe type water outlet structure can save about 15% of construction cost compared with the overflow weir type water outlet structure by project cost budget and the same water drainage capacity.
Claims (5)
1. A dredge floodgate case buried pipe outlet structure of engineering, characterized by: the drainage system comprises a geotechnical cloth layer (12) arranged on the ground (11), wherein a bottom concrete layer (13) is arranged on the geotechnical cloth layer (12), a plurality of main drainage pipelines are arranged on the bottom concrete layer (13) in parallel, each main drainage pipeline is composed of an inner pipeline (10), an outer pipeline (8) and a plurality of intermediate pipelines positioned between the inner pipeline and the outer pipeline, a shared gate box (2) is installed at the end part of the inner pipeline (10) of each main drainage pipeline, gate valves (14) are installed at the end parts of the outer pipelines (8) of each main drainage pipeline, and drainage pipelines (15) are connected with outlets of the gate valves (14) in a butt joint manner; the gate box (2) comprises a gate box plate (9) and a gate box truss which is fixedly arranged on the outer side of the gate box plate (9), a plurality of through holes are formed in a plate body at the middle lower part of the gate box plate (9), and the end parts of inner side pipelines (10) of all main drainage pipelines penetrate through the through holes and are welded and fixed; be equipped with the low bank between fields body in the top of each drainage trunk line, the outside of floodgate case board (9), be equipped with top concrete layer (4) on the low bank between fields top (3) that enclose the low bank between fields body, laid stone layer (6) on the surface of the low bank between fields backwater side (5) that enclose the low bank between fields body, be equipped with in the outside on stone layer (6) backwater side concrete layer (7), both integrated into one piece are pour in top concrete layer (4) and backwater side concrete layer (7).
2. The gate box buried pipe type drainage port structure of dredging engineering of claim 1, characterized in that: the side slopes (1) positioned on two sides of the gate box (2) are in a horn mouth shape, waterproof geotextile is laid on the water facing sides of the side slopes (1) on the two sides, and the lower edges of the waterproof geotextile extend to the bottom of the gate box (2) and are pressed, held and fixed by a plurality of sand bags.
3. The gate box buried pipe type drainage port structure of dredging engineering of claim 2, characterized in that: the gate box truss of the gate box (2) comprises a rectangular support which is made by welding metal profiles, the support is welded and fixed with a gate box plate (9), two sides of the support are butted with side slopes (1) on two sides, and a gate box panel is welded and fixed on the middle lower part of the front side of the support.
4. The gate box buried pipe type drainage port structure of dredging engineering of claim 1, characterized in that: the concrete layer (7) on the back water side covers the position of the tail end of the outer pipeline (8).
5. The gate box buried pipe type drainage port structure of dredging engineering of claim 1, characterized in that: the inner side pipeline (10) and the middle pipeline, the two adjacent middle pipelines and the middle pipeline and the outer side pipeline (8) are connected by flanges, and sealing gaskets are arranged between the two flanges in butt joint connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920501709.8U CN209891168U (en) | 2019-04-12 | 2019-04-12 | Dredging engineering's floodgate case buried pipe formula outlet structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920501709.8U CN209891168U (en) | 2019-04-12 | 2019-04-12 | Dredging engineering's floodgate case buried pipe formula outlet structure |
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| Publication Number | Publication Date |
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| CN209891168U true CN209891168U (en) | 2020-01-03 |
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| CN201920501709.8U Withdrawn - After Issue CN209891168U (en) | 2019-04-12 | 2019-04-12 | Dredging engineering's floodgate case buried pipe formula outlet structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914358A (en) * | 2019-04-12 | 2019-06-21 | 中交天航滨海环保浚航工程有限公司 | The lock case buried tube type drain structure for water of dredging work |
-
2019
- 2019-04-12 CN CN201920501709.8U patent/CN209891168U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109914358A (en) * | 2019-04-12 | 2019-06-21 | 中交天航滨海环保浚航工程有限公司 | The lock case buried tube type drain structure for water of dredging work |
| CN109914358B (en) * | 2019-04-12 | 2024-03-01 | 中交(天津)疏浚工程有限公司 | Gate box buried pipe type water outlet structure for dredging engineering |
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Address after: Room 346, Chentang technology incubator, 17 Yujiang Road, Hexi District, Tianjin, 300221 Patentee after: CCCC (Tianjin) Dredging Engineering Co.,Ltd. Address before: Tianhang building, No.1, Zhongxin Road, Tanggu District, Binhai New Area, Tianjin 300450 Patentee before: CCCC-TDC BINHAI ENVIRONMENTAL CHANNEL DREDGING Co.,Ltd. |
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