CN115450169A - River bank protection considering sewage intercepting pipeline arrangement and construction method thereof - Google Patents
River bank protection considering sewage intercepting pipeline arrangement and construction method thereof Download PDFInfo
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- 239000010865 sewage Substances 0.000 title claims abstract description 51
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 118
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- 239000004567 concrete Substances 0.000 claims abstract description 112
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
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- 239000000306 component Substances 0.000 description 36
- 238000004364 calculation method Methods 0.000 description 12
- 239000011150 reinforced concrete Substances 0.000 description 5
- 238000009412 basement excavation Methods 0.000 description 3
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- 239000000463 material Substances 0.000 description 2
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
- E02B3/04—Structures or apparatus for, or methods of, protecting banks, coasts, or harbours
- E02B3/12—Revetment of banks, dams, watercourses, or the like, e.g. the sea-floor
- E02B3/121—Devices for applying linings on banks or the water bottom
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
- E02D5/285—Prefabricated piles made of steel or other metals tubular, e.g. prefabricated from sheet pile elements
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- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/04—Pipes or fittings specially adapted to sewers
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F3/00—Sewer pipe-line systems
- E03F3/06—Methods of, or installations for, laying sewer pipes
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
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Abstract
The invention discloses a river bank protection considering sewage interception pipeline arrangement and a construction method thereof, wherein the river bank protection comprises an inner side steel pipe pile component, an outer side steel pipe pile component, a pile wall, a concrete bottom plate and a concrete top plate, the lower end of the steel pipe pile component is inserted into a river bank slope, the lower end of the pile wall is positioned below a ground line of the river bank slope, and the upper end of the outer side steel pipe pile component is positioned in the pile wall; the concrete bottom plate is arranged below the ground line of the bank slope of the river channel, the concrete top plate is arranged above the designed water level of the river channel, and the sewage intercepting pipeline is arranged in a pipe trench formed by the inter-pile wall, the inner steel pipe pile assembly, the concrete bottom plate and the concrete top plate; according to the invention, two rows of steel pipe pile assemblies are connected into a whole through the pile walls, the concrete bottom plate and the concrete top plate, the steel pipe pile assemblies are small-sized component combinations, large-sized mechanical vibration or rotary drilling construction is not required in the implementation process, and the influence on surrounding residents and buildings is small; and can construct the steel-pipe pile subassembly through small-size machinery, it is lower to the requirement in construction site.
Description
Technical Field
The invention relates to the technical field of hydraulic structures, in particular to a river bank protection considering sewage intercepting pipeline arrangement and a construction method thereof.
Background
In plain river network areas, particularly developed areas such as bead triangles, long triangles and the like, the population is dense, the civil houses face rivers, the river channels are narrow, surrounding houses are dense, traffic is difficult to enter and exit, and the conventional bank protection type cannot meet the requirements of site construction; meanwhile, due to the fact that the land contradiction is prominent, the situation that residents are gathered near a river in the areas is common, the current situation of the water environment of the river channel is severe, and a sewage interception and control system along the river is also in urgent need of comprehensive treatment; therefore, the conventional river bank protection structure needs to be optimized and innovated correspondingly so as to adapt to engineering construction under special conditions.
At the present stage, under the conditions that the population of a coastal developed area is dense and a civil house is constructed in the river, the conventional methods adopted by river bank protection engineering include the following two methods: the bank protection form of the wall-mounted wall of the rotary excavating cast-in-place pile is adopted, so that the stability and safety of the built on both banks are ensured in the process of excavating the river bank slope; and reinforcing the river bank slope in a permanent-temporary combination mode by adopting a prefabricated sheet pile bank protection mode.
However, the two methods have the problems of higher construction site requirement, larger influence on the periphery in the construction process and larger unit investment.
Disclosure of Invention
The invention aims to solve the technical problems of great construction difficulty and construction influence of river channel bank protection in the current stage, and provides a river channel bank protection considering sewage intercepting pipeline arrangement and a construction method thereof, which can ensure the practicability of a river channel comprehensive treatment project, furthest reduce the influence on the existing building of a peripheral dense area, reserve the sewage intercepting pipeline arrangement space and control the investment of project construction.
The invention is realized by the following technical scheme:
in a first aspect, a river bank protection considering sewage intercepting pipeline layout comprises:
an inner steel pipe pile assembly having a lower end and an upper end, the lower end of the inner steel pipe pile assembly being inserted into a river bank slope;
the outer steel pipe pile assembly is provided with a lower end and an upper end, the lower end of the outer steel pipe pile assembly is inserted into a bank slope of a river channel, the outer steel pipe pile assembly is located on the water-facing surface of the river channel relative to the inner steel pipe pile assembly, and a gap is formed between the outer steel pipe pile assembly and the inner steel pipe pile assembly;
the lower end of the inter-pile wall is positioned below the ground line of a river bank slope, and the upper end of the outer steel pipe pile assembly is positioned in the inter-pile wall;
the concrete bottom plate is arranged below the ground line of the river bank slope and connected with the lower end of the inter-pile wall, and the inner side steel pipe pile component and the outer side steel pipe pile component penetrate through the concrete bottom plate and are fixedly connected with the concrete bottom plate;
the concrete top plate is arranged above the designed water level of the river channel and connected with the upper end of the inter-pile wall, and the inner steel pipe pile component and the outer steel pipe pile component are fixedly connected with the concrete top plate;
and the sewage interception pipeline is arranged in a pipe trench formed by the inter-pile wall, the inner side steel pipe pile assembly, the concrete bottom plate and the concrete top plate.
Optionally, the outer steel pipe pile assembly is vertically arranged, and the inner steel pipe pile assembly includes a plurality of inner steel pipes arranged in parallel;
the outer steel pipe pile component is vertically arranged and comprises a plurality of outer steel pipes arranged in parallel;
the concrete bottom plate is horizontally arranged, and the lower end of the inter-pile wall is fixedly connected with the center line of the upper side face of the concrete bottom plate;
the concrete top plate is horizontally arranged, and the upper end of the inter-pile wall is fixedly connected with the center line of the lower side face of the concrete top plate.
Optionally, the concrete bottom plate, the inter-pile wall and the concrete top plate are formed by pouring concrete;
backfill soil is filled between the pipe trench and the sewage intercepting pipeline;
and a vertical river handrail is arranged on the water facing surface of the concrete top plate.
Optionally, the concrete bottom plate includes:
a C30 concrete retaining wall bottom plate connected with the inter-pile wall;
the C20 concrete cushion layer is arranged below the C30 concrete retaining wall bottom plate and connected with the C30 concrete retaining wall bottom plate;
the dry masonry block stone foot guard is arranged on the water-facing surface of the C30 concrete retaining wall bottom plate;
and the inter-pile wall and the concrete top plate are both cast by C30 concrete.
As an embodiment, the inner steel pipe and the outer steel pipe are D200 steel pipes, the length of each steel pipe is 8m, and the distance between two adjacent inner steel pipes/outer steel pipes is 50cm and is arranged in a quincunx manner;
the thickness of the C20 concrete cushion layer is 10cm, and the thickness of the C30 concrete retaining wall bottom plate is 60cm;
the height of the inter-pile wall is 195cm, and the thickness of the inter-pile wall is 60cm;
the thickness of the concrete top plate is 45cm.
In a second aspect, a construction method of a river bank protection considering sewage intercepting pipeline arrangement is used for constructing a river bank protection considering sewage intercepting pipeline arrangement, wherein the construction method comprises the following steps:
determining the minimum distance between the inner steel pipe pile component and the boundary of the house;
determining the stable spacing of double rows of piles between the outer steel pipe pile assembly and the inner steel pipe pile assembly;
excavating a foundation pit according to the determined minimum distance;
pressing the inner steel pipe and the outer steel pipe into the foundation pit according to the minimum distance and the stable spacing of the double rows of piles;
sequentially pouring a concrete bottom plate and a pile wall;
laying a sewage intercepting pipe network and filling backfill soil;
and pouring a concrete top plate.
Optionally, before excavating the foundation pit, it is also necessary to:
acquiring the water collection quantity of the sewage intercepting pipeline, and determining the size of a pipe ditch;
judging whether the double-row pile stable spacing is matched with the size of the pipe ditch or not, and if not, adjusting the double-row pile stable spacing;
and if the distance is adaptive, excavating the foundation pit according to the determined minimum distance.
Optionally, the minimum distance is determined by a minimum safe construction distance of the foundation pit construction machine and the steel pipe pressing machine.
Optionally, the double-row pile stabilizing distance is determined by a foundation pit support design specification.
Optionally, the method of determining the size of the trench comprises:
determining the diameter of the pipeline according to the water collection amount of the sewage interception pipeline;
determining the super-high widening size of the sewage intercepting pipeline;
the diameter of the whole pipeline and the super-high widening size are obtained, and the size of the pipe ditch is obtained.
Compared with the prior art, the invention has the following advantages and beneficial effects:
according to the invention, two rows of steel pipe pile components are connected into a whole through the pile wall, the concrete bottom plate and the concrete top plate, the steel pipe pile components are small-sized component combinations, large-sized mechanical vibration or rotary drilling construction is not required in the implementation process, and the influence on surrounding residents and buildings is small; the steel pipe pile assembly can be constructed through small machinery, and the requirement on a construction site is low; the double steel-pipe pile subassembly can provide interim excavation supporting for the construction of intercepting dirty pipe along the river, and the position between two piles can provide the trench again for laying of intercepting dirty pipeline simultaneously.
The invention adopts smaller structural members, can be implemented by adopting conventional machinery in the construction process without complex construction process and large-scale construction equipment, can utilize the finished tubular pile as supporting equipment, well realizes permanent and temporary combination, can furthest exert the efficiency of the existing member, and reduces the unit investment of river bank protection.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the principles of the invention.
Fig. 1 is a side view of a river bank protection in accordance with the present invention, in which the distribution of cut-off pipes is considered.
Fig. 2 is a structural diagram of a river bank protection considering the arrangement of the sewage intercepting pipelines according to the invention.
Reference numerals: 1-inner side steel pipe pile component, 2-outer side steel pipe pile component, 3-pile partition wall, 4-concrete bottom plate, 41-C30 concrete retaining wall bottom plate, 42-C20 concrete cushion layer, 43-dry block stone foot guard, 5-concrete top plate, 6-sewage intercepting pipeline, 7-backfill soil, 8-house boundary and 9-river-facing guardrail.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are for purposes of illustration only and are not to be construed as limitations of the invention.
It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.
In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral parts thereof; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the present invention, the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The terms of the present invention are explained.
River channels in house dense areas: coastal areas and areas with developed plain river networks are often densely populated and have civil houses facing rivers, and the general problems of narrow river channels, dense surrounding houses, difficult traffic and no conventional construction conditions are existed.
The sewage intercepting pipeline 6: the dense arrangement of the river-facing civil houses often causes serious pollution to the surrounding river network water environment because the sewage in river-facing residential areas is directly discharged into the river, so that the construction of the river-facing sewage interception net pipes is often required in the areas.
River bank protection: by optimizing the hydraulic structure, the bank protection of the river channel in the dense house area is realized, the bank protection type can ensure the stable and safe protection of peripheral dense building groups in the river bank construction process, can effectively carry out the river channel bank protection construction, and simultaneously meets the laying of the river-following sewage intercepting pipeline 6.
The two existing technologies are:
the bank protection form ensures that the two banks are stable and safe in the process of excavating the river bank slope by adopting a rotary excavating cast-in-place pile wall-hanging wall bank protection form, the cast-in-place large-diameter reinforced concrete cast-in-place pile is used as a skid-resistant stress structure of the bank slope, and a thin-wall reinforced concrete wall-hanging wall is arranged outside a water-facing side pile body and is used as a connecting member for anti-scour and soil-blocking, so that an integral 3-bank protection structure of the inter-pile wall is formed.
Adopting a prefabricated sheet pile bank protection form which is a close-packed prefabricated [ V-shaped or U-shaped ] reinforced concrete sheet pile structure, tightly driving the prefabricated piles into the bank edge of a river by a high-frequency vibration hammer to form a close-packed bank protection structure, and pouring a through reinforced concrete crown beam at the pile top after the close-packed pile construction is finished to ensure the structural integrity and the strength of a close-packed pile body; the densely arranged precast sheet pile revetment structure can ensure that the river bank slope is reinforced in the construction process in a permanent-temporary combination mode.
The above two prior art drawbacks:
the unit investment is large: the rotary excavating cast-in-place pile wall-mounted revetment needs to adopt a large rotary excavating drilling machine to enter the river course revetment, and the unit price per linear meter of the adopted reinforced concrete pile body is higher than that of the river course revetment by 1.5-2.5 ten thousand; when the densely-arranged precast slab piles are used for revetment, large-scale vibration hammering equipment is also needed, and the precast slab piles can be driven into the soil in place through high-frequency hammering, so that the strength of the precast slab piles generally exceeds that of C60 high-strength concrete, the manufacturing cost is high, and the unit price per linear meter reaches 1.2-1.6 ten thousand.
The construction site has high requirements: the construction of the two shore protection types needs large-scale mechanical equipment to enter and exit the construction access road, the width of the access road needs 4.5m, and the requirement on the site is high, so that the construction conditions are difficult to meet under the conditions that the population of a coastal developed area is dense and a civil house is constructed in the river.
The construction process has great influence on the periphery: the two types of revetment need large-scale machine implementation in the construction process, and have great vibration in the implementation process of the pile body, so the influence that can produce to the dense house of periphery is great and certain irreversible harm appears easily.
The auxiliary sewage intercepting pipeline 6 needs to consider new arrangement space and excavation and support modes.
Example one
In order to solve the above disadvantages, as shown in fig. 1 and 2, the present embodiment provides a river bank protection considering the arrangement of the sewage intercepting pipeline 6, which includes an inner steel pipe pile assembly 1, an outer steel pipe pile assembly 2, an inter-pile wall 3, a concrete bottom plate 4 and a concrete top plate 5.
For convenience of the following description, it is assumed that the inside steel-pipe pile assembly 1 has a lower end and an upper end, the outside steel-pipe pile assembly 2 has a lower end and an upper end, and the inter-pile wall 3 has a lower end and an upper end. The side close to the river channel is set to be near the water surface.
The lower extreme of inboard steel-pipe pile subassembly 1 inserts to the river course bank slope, and the lower extreme of outside steel-pipe pile subassembly 2 inserts to the river course bank slope, is provided with the clearance between outside steel-pipe pile subassembly 2 and the inboard steel-pipe pile subassembly 1.
The outer side steel pipe pile assembly 2 is located on the water-facing surface of the river channel relative to the inner side steel pipe pile assembly 1.
The lower end of the pile wall 3 is positioned below the ground line of the river bank slope, and the upper end of the outer steel pipe pile component 2 is positioned in the pile wall 3; before construction, the river bank slope needs to be excavated, and therefore the ground line here is the ground of the unearthed river bank slope.
The concrete bottom plate 4 is arranged below the ground line of the bank slope of the river channel, the concrete top plate 5 is arranged above the designed water level of the river channel, the concrete bottom plate 4 is connected with the lower end of the inter-pile wall 3, the concrete top plate 5 is connected with the upper end of the inter-pile wall 3, and the concrete bottom plate 4, the inter-pile wall 3 and the concrete top plate 5 form an I-shaped structure as shown in figure 1.
In order to fix the outer steel pipe pile component 2 and the inner steel pipe pile component 1 through the concrete top plate 5, the concrete bottom plate 4 and the inter-pile wall 3, the inner steel pipe pile component 1 and the outer steel pipe pile component 2 both penetrate through the concrete bottom plate 4 and are fixedly connected with the concrete bottom plate 4; the inner steel pipe pile component 1 and the outer steel pipe pile component 2 are fixedly connected with a concrete top plate 5;
in the present embodiment, the outer steel pipe pile assembly 2 is vertically arranged, and the inner steel pipe pile assembly 1 includes a plurality of inner steel pipes arranged in parallel; the outside steel-pipe pile subassembly 2 sets up vertically, and outside steel-pipe pile subassembly 2 includes a plurality of parallel arrangement's outside steel pipe.
The steel pipe pile components are formed by the steel pipes arranged in parallel, construction is convenient during construction, and because the steel pipes with small diameters are used as main stress components, the double rows of steel pipe pile components are connected through the concrete structure to bear the whole stress, so that the structural performance of the pile body is fully exerted and the pile body is used as a stress structure of the bank protection of the bank slope.
Because the stress component is a steel pipe pile with a small diameter, only small downward pressure is needed in the piling process, so that large-scale machinery is not needed to enter and exit, and meanwhile, large vibration does not exist in the construction process, and the influence on the peripheral built buildings is minimum.
Preferably, in order to increase the stability of the same construction, the concrete bottom plate 4 is horizontally arranged, and the lower end of the inter-pile wall 3 is fixedly connected with the center line of the upper side surface of the concrete bottom plate 4; the concrete top plate 5 is horizontally arranged, and the upper end of the inter-pile wall 3 is fixedly connected with the central line of the lower side surface of the concrete top plate 5.
The sewage interception pipeline 6 is arranged in a pipe trench formed by the pile partition wall 3, the inner side steel pipe pile component 1, the concrete bottom plate 4 and the concrete top plate 5, and backfill soil 7 is filled between the pipe trench and the sewage interception pipeline 6.
The space formed by the inter-pile wall 3, the inner steel pipe pile component 1, the concrete bottom plate 4 and the concrete top plate 5 is used as a pipe trench for laying the sewage intercepting pipeline 6, so that the double-row steel pipe pile component can be used as a foundation pit supporting pile for laying the sewage intercepting pipeline 6, the safety of laying a sewage intercepting pipe network is guaranteed, the permanent temporary combination can be well realized, the investment is saved to the maximum extent, the investment is saved by about 30% compared with the traditional supporting type, and the construction period is saved by about 20%.
For the safety of the river bank protection, a vertical river handrail is arranged on the water surface of the concrete top plate 5.
In order to increase the stability of the concrete structure, the concrete bottom plate 4, the inter-pile wall 3 and the concrete top plate 5 are formed by pouring concrete.
The concrete bottom plate 4 comprises a C30 concrete retaining wall bottom plate 41 connected with the inter-pile wall 3, a C20 concrete cushion 42 arranged below the C30 concrete retaining wall bottom plate 41 and connected with the C30 concrete retaining wall bottom plate, and a dry masonry toe guard 43 arranged on the water surface of the C30 concrete retaining wall bottom plate 41; the inter-pile wall 3 and the concrete top plate 5 are both cast by C30 concrete.
As a specific example, the structure of each component is limited, the inner steel pipe and the outer steel pipe are D200 steel pipes, the length of each steel pipe is 8m, the distance between every two adjacent inner steel pipes/outer steel pipes is 50cm, and the adjacent inner steel pipes/outer steel pipes are arranged in a quincunx manner;
the thickness of the C20 concrete cushion layer 42 is 10cm, and the thickness of the C30 concrete retaining wall bottom plate 41 is 60cm; the height of the inter-pile wall 3 is 195cm, and the thickness of the inter-pile wall 3 is 60cm; the thickness of the concrete top plate 5 is 45cm.
The sizes of the components can be adjusted according to actual conditions, and are not particularly limited.
Example two
The embodiment provides a river bank protection construction method considering the arrangement of the sewage intercepting pipelines 6, which is applied to the river bank protection of the embodiment, and the construction method comprises the following steps:
determining the minimum distance between the inner steel pipe pile assembly 1 and the house boundary 8; the minimum distance between the inner steel pipe pile component 1 and the house boundary 8 is generally determined by the minimum safe construction distance when the inner steel pipe is pressed in, and if the influence range of a bucket is considered when a small excavator is adopted, the minimum safe distance is not less than 1.5m; if a geological drill is adopted for punching in a guide hole, the nearest distance to a house is not less than 0.5m, and the specific value is a value comprehensively set according to construction specifications and related experiences, particularly characteristic values of available mechanical equipment.
Determining the stable spacing of double rows of piles between the outer steel pipe pile component 2 and the inner steel pipe pile component; the distance between the steel pipe pile components mainly depends on the stable calculation of the double-row piles, and the calculation simplified model can refer to the stable calculation of the double-row piles of the foundation pit support; determining the minimum distance according to the calculation result, wherein the calculation method is a general calculation method for the design specification of the building foundation pit support; the calculation index is also correspondingly specified. Therefore, the calculations in this embodiment are performed in a normative manner, and the contents of the calculations are also conventional anti-overturning calculations and overall anti-sliding calculations. After the stability calculation, the minimum value of the double-row pile stability distance can be obtained.
Obtaining the water collection amount of the sewage intercepting pipeline 6, and determining the size of a pipe ditch;
judging whether the double-row pile stable spacing is matched with the size of the pipe ditch or not, and if not, adjusting the double-row pile stable spacing; and if the distance is adaptive, excavating the foundation pit according to the determined minimum distance.
The relative spacing and height of the pipe trench and the sewage intercepting pipeline 6 are determined according to the requirement of minimum clearance in the design standard of outdoor drainage and the construction and acceptance standard of water supply and drainage pipelines.
Pressing the inner steel pipe and the outer steel pipe into the foundation pit according to the minimum distance and the stable spacing of the double rows of piles; there are many construction methods for different conditions such as site topography, geology, etc., for example, in the area mainly of mucky soil can adopt the small-scale excavator to press into the soil layer directly, in the area mainly of fine sand or fine clay can adopt the way of high-pressure water punching and washing to cooperate with the small-scale excavator to press into the soil layer, if meet the area of hard block such as the local gravel, can adopt the geological drilling rig pilot hole of small volume to assist the steel pipe to enter the soil mass. The construction method can ensure that large-scale mechanical equipment is not needed in the construction process, has better regional adaptability, and has less influence on surrounding residents and buildings.
Sequentially pouring a concrete bottom plate 4 and an inter-pile wall 3;
laying a sewage intercepting pipe network and filling backfill soil 7; the stress form of double steel-pipe pile subassembly stake both can regard as the permanent stress structure of river course shore protection, can regard as the supporting construction of intercepting the 6 excavations of dirty pipeline simultaneously again, guarantees the laying of intercepting dirty pipeline 6.
And pouring a concrete top plate 5. It has sufficient structural strength to guarantee concrete roof 5 to make double steel-pipe pile subassembly form the whole of atress, this structure can be based on the actual demand in river course design of encorbelmenting simultaneously, with the current demand of guaranteeing the river course periphery.
The stable spacing of the double-row piles is determined by the design specification of foundation pit support.
The minimum distance is determined by the minimum safe construction distance of the foundation pit construction machine and the steel pipe pressing-in machine.
The method for determining the size of the pipe ditch comprises the following steps: determining the diameter of the pipeline according to the water receiving amount of the sewage intercepting pipeline 6; determining the super-high widening size of the sewage intercepting pipeline 6; the diameter of the whole pipeline and the super-high widening size are obtained, and the size of the pipe ditch is obtained.
Determined according to the design specifications of outdoor drainage and the construction and acceptance specifications of water supply and drainage pipelines.
In summary of the first to third embodiments, the present invention includes:
the influence on surrounding buildings is small: the 3-type revetment structure of the steel pipe pile component inter-pile wall is an organic combination of small components, large-scale mechanical vibration or rotary drilling construction is not needed in the implementation process, and therefore large vibration cannot be generated, influences on surrounding residents and buildings are small, and the three-dimensional revetment structure is suitable for river comprehensive treatment engineering of residential gathering areas densely distributed in coastal river networks.
Construction period is saved to construction convenience: the main core component is the press-in of a small-diameter steel pipe, a small excavator or a geological drilling machine is adopted for press-in the press-in process, and a high-pressure water gun can be adopted for hole washing in the press-in process so as to facilitate the press-in of the steel pipe and the emptying of soil in the pipe; the construction of other components such as the concrete top plate 5 is the pouring of the conventional concrete without special construction equipment, so the construction process is conventional, convenient and quick, and the construction period can be saved compared with the traditional revetment form.
The convenient laying of intercepting dirty pipe network is faced to the combination forever: the implementation of double steel-pipe pile subassembly stake can provide interim strutting for the construction of intercepting dirty pipe along the river, and the position between two stakes can provide valuable pipe space for laying of intercepting dirty pipeline 6 again simultaneously, can be worried one's more, carries out abundant utilization with the advantage of double row stake.
Has better economical efficiency: all adopt less conventional structural component, adopt conventional machinery can implement not needing complicated construction process and large-scale construction equipment in the work progress, can utilize the tubular pile of completion as the support equipment simultaneously, fine realization is faced forever and is combined, can furthest's performance present component's efficiency, consequently can save the engineering investment compared with traditional shore protection structural style.
In the description herein, reference to the description of the terms "one embodiment/mode," "some embodiments/modes," "example," "specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment/mode or example is included in at least one embodiment/mode or example of the application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment/mode or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments/modes or examples. Furthermore, the various embodiments/aspects or examples and features of the various embodiments/aspects or examples described in this specification can be combined and combined by one skilled in the art without conflicting therewith.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
It will be understood by those skilled in the art that the foregoing embodiments are merely for clarity of description and are not intended to limit the scope of the invention. Other variations or modifications may occur to those skilled in the art, which are based on the above-described invention, and which are still within the scope of the invention.
Claims (10)
1. A river bank protection considering laying of sewage intercepting pipelines (6), comprising:
an inner steel pipe pile assembly (1) having a lower end and an upper end, the lower end of the inner steel pipe pile assembly (1) being inserted into a river bank slope;
the outer side steel pipe pile component (2) is provided with a lower end and an upper end, the lower end of the outer side steel pipe pile component (2) is inserted into a bank slope of a river channel, the outer side steel pipe pile component (2) is located on the water-facing surface of the river channel relative to the inner side steel pipe pile component (1), and a gap is formed between the outer side steel pipe pile component (2) and the inner side steel pipe pile component (1);
the pile wall (3) is provided with a lower end and an upper end, the lower end of the pile wall (3) is positioned below the ground line of a river bank slope, and the upper end of the outer steel pipe pile assembly (2) is positioned in the pile wall (3);
the concrete bottom plate (4) is arranged below the ground line of the river bank slope and connected with the lower end of the inter-pile wall (3), and the inner steel pipe pile assembly (1) and the outer steel pipe pile assembly (2) penetrate through the concrete bottom plate (4) and are fixedly connected with the concrete bottom plate (4);
the concrete top plate (5) is arranged above the designed water level of the river channel and connected with the upper end of the inter-pile wall (3), and the inner steel pipe pile component (1) and the outer steel pipe pile component (2) are fixedly connected with the concrete top plate (5);
and the sewage intercepting pipeline (6) is arranged in a pipe trench formed by the pile partition wall (3), the inner steel pipe pile component (1), the concrete bottom plate (4) and the concrete top plate (5).
2. River bank protection considering the layout of sewage intercepting pipelines (6) according to claim 1, characterized in that the outer steel pipe pile assembly (2) is vertically arranged, and the inner steel pipe pile assembly (1) comprises a plurality of inner steel pipes arranged in parallel;
the outer side steel pipe pile component (2) is vertically arranged, and the outer side steel pipe pile component (2) comprises a plurality of outer side steel pipes which are arranged in parallel;
the concrete bottom plate (4) is horizontally arranged, and the lower end of the inter-pile wall (3) is fixedly connected with the middle line of the upper side face of the concrete bottom plate (4);
concrete roof (5) level sets up, just the upper end of wall between the stake (3) with the downside central line fixed connection of concrete roof (5).
3. The revetment for river channels considering the layout of intercepting sewer pipes (6) according to claim 2, wherein said concrete bottom plate (4), said inter-pile walls (3) and said concrete top plate (5) are formed by concrete casting;
backfill soil (7) is filled between the pipe trench and the sewage intercepting pipeline (6);
and a vertical river handrail is arranged on the water facing surface of the concrete top plate (5).
4. Revetment for river channels considering the laying of intercepting sewer pipes (6) according to claim 2, characterized by the fact that said concrete bottom plate (4) comprises:
a C30 concrete retaining wall bottom plate (41) connected with the inter-pile wall (3);
a C20 concrete cushion layer (42) arranged below and connected with the C30 concrete retaining wall bottom plate (41);
the dry masonry block stone foot guard (43) is arranged on the water surface of the C30 concrete retaining wall bottom plate (41);
and the inter-pile wall (3) and the concrete top plate (5) are both cast by C30 concrete.
5. The river bank protection considering the arrangement of the sewage intercepting pipelines (6) as claimed in claim 4, wherein the inner steel pipes and the outer steel pipes are D200 steel pipes and have a length of 8m, and the distance between two adjacent inner steel pipes/outer steel pipes is 50cm and is arranged in a quincunx shape;
the thickness of the C20 concrete cushion layer is 10cm, and the thickness of the C30 concrete retaining wall bottom plate is 60cm;
the height of the inter-pile wall (3) is 195cm, and the thickness of the inter-pile wall (3) is 60cm;
the thickness of the concrete top plate (5) is 45cm.
6. A construction method of river bank protection considering the arrangement of sewage intercepting pipelines (6), which is used for constructing the river bank protection considering the arrangement of the sewage intercepting pipelines (6) as claimed in any one of claims 2 to 4, and comprises the following steps:
determining the minimum distance between the inner side steel pipe pile component (1) and the house boundary (8);
determining the stable spacing of double rows of piles between the outer steel pipe pile component (2) and the inner steel pipe pile component;
excavating a foundation pit according to the determined minimum distance;
pressing the inner steel pipe and the outer steel pipe into the foundation pit according to the minimum distance and the stable spacing of the double rows of piles;
sequentially pouring a concrete bottom plate (4) and a pile space wall (3);
laying a sewage intercepting pipe network, and filling backfill soil (7);
and pouring a concrete top plate (5).
7. The construction method of the river bank protection considering the arrangement of the sewage intercepting pipeline (6) according to the claim 6, characterized in that before excavating the foundation pit, the following steps are required:
obtaining the water collection amount of the sewage intercepting pipeline (6), and determining the size of a pipe ditch;
judging whether the double-row pile stabilizing interval is matched with the size of the pipe ditch or not, and if not, adjusting the double-row pile stabilizing interval;
and if the distance is matched with the minimum distance, excavating the foundation pit according to the determined minimum distance.
8. The method for constructing a river bank protection considering the arrangement of the sewage intercepting pipelines (6) as claimed in claim 6, wherein the minimum distance is determined by a minimum safe construction distance of a foundation pit construction machine and a steel pipe pressing machine.
9. The construction method of the river bank protection considering the arrangement of the sewage intercepting pipelines (6) as claimed in claim 6, wherein the stable spacing of the double row piles is determined by the design specifications of foundation pit support.
10. The method for constructing a river bank protection considering the arrangement of the sewage intercepting pipelines (6) as claimed in claim 7, wherein the method for determining the size of the pipe trench comprises the following steps:
determining the diameter of the pipeline according to the water collection amount of the sewage interception pipeline (6);
determining the super-high widening size of the sewage intercepting pipeline (6);
the diameter of the whole pipeline and the super-high widening size are obtained, and the size of the pipe ditch is obtained.
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| CN202211122376.0A CN115450169B (en) | 2022-09-15 | 2022-09-15 | River course revetment considering sewage interception pipeline layout and construction method thereof |
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Cited By (1)
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| CN115787804A (en) * | 2023-02-13 | 2023-03-14 | 福州市规划设计研究院集团有限公司 | Assembled prevents flowing backward and intercepts dirty device along river |
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| CN115450169B (en) | 2024-01-23 |
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