A tide-blocking gate chamber for uninterrupted navigation constructed on soft soil foundation and its construction technology

Abstract

This invention relates to a tidal barrier gate chamber for uninterrupted navigation on soft soil foundations and its construction process. The gate chamber includes a gate chamber floor slab, a gate, gate piers, and precast pile foundations. The precast pile foundations are fixed below the gate chamber floor slab, which includes a sill. The gate and gate piers are installed above the floor slab. The gate is located between the sills, and the gate piers are located on both sides of the gate. The construction process includes preliminary calculations, precasting of individual precast floor slabs, installation of precast pile foundations, installation of the gate chamber floor slab and gate piers, and installation of the gate. This invention forms an integral structure by using precast pile foundations, precast templates, and a large-volume underwater cast-in-place concrete floor slab. A large floating steel box gate is placed on the gate chamber floor slab to form the tidal barrier gate chamber structure. This allows for construction without a cofferdam while shortening the construction time, making it suitable for constructing tidal barrier gates for uninterrupted navigation in large estuaries.

Description

Technical Field

[0001] This invention relates to the field of hydraulic gate technology, and in particular to a tide-blocking gate chamber for continuous navigation constructed on soft soil foundations and its construction process. Background Technology

[0002] A tidal gate is a type of sluice gate built in coastal areas or near river mouths to block tides, discharge floodwaters, and drain waterlogging. It has a specific type of movable sluice gate and is used to protect coastal cities from natural disasters such as storm surges, while also meeting the requirements of flood discharge, drainage, and navigation of river channels.

[0003] The construction of new tidal gates in estuaries of coastal cities is often constrained by hydrological conditions, geological conditions, construction site, and surrounding environment. Simultaneously, it must meet the requirements of uninterrupted navigation during construction, minimal land occupation, and no impact on the river's course, significantly increasing the difficulty of gate construction. According to traditional experience in sluice gate construction, if the foundation is soft soil, dry construction is generally carried out using a large cofferdam or a deep foundation pit. Both of these methods result in navigation disruption during the construction period.

[0004] Chinese utility model patent CN114892700A (publication date: August 12, 2022) discloses a composite foundation structure for a coastal soft foundation tide barrier and its construction method. The structure includes soil, multiple fixed piles embedded in the soil for soil reinforcement, a cushion layer above the soil, a concrete layer above the cushion layer, and a permeable layer on one side of the concrete layer. Multiple drainage pipes are arranged in a quincunx pattern within the permeable layer. A mesh fastener is installed within the cushion layer. The fixed piles include a first cylindrical pile, a second cylindrical pile, and a third cylindrical pile. The first and third cylindrical piles are located on either side of the second cylindrical pile and intersect with it. This structure has high bearing capacity, facilitates drainage, and maintains long-term stability, ensuring the service life of the soil foundation.

[0005] Research revealed that current research on tide gates mainly focuses on improving gate structure, achieving larger spans, and multifunctionality. While the aforementioned patents also concern construction on soft soil foundations, they do not achieve continuous navigation during construction. Therefore, this invention provides a tide gate chamber for continuous navigation construction on soft soil foundations, along with its construction process. Summary of the Invention

[0006] The purpose of this invention is to overcome the problem of long construction periods and high costs caused by the construction of existing tide gates on soft soil foundations, which interrupts navigation. This invention provides a tide gate chamber that can be constructed on soft soil foundations without interrupting navigation, as well as its construction process.

[0007] A tidal barrier gate chamber for continuous navigation constructed on soft soil foundation includes a gate chamber floor slab, gate, gate piers, and precast pile foundations;

[0008] The precast pile foundation is fixed below the bottom slab of the gate chamber, the bottom slab of the gate chamber includes a sill, and a gate and gate pier are installed above the bottom slab of the gate chamber.

[0009] The gate is located between the bottom sills; the gate piers are located on both sides of the gate.

[0010] Furthermore, a granite panel is installed on one side of the gate, located between the gate and the gate pier.

[0011] Furthermore, the gate chamber floor slab also includes a cast-in-place floor slab and multiple precast floor slabs. The cast-in-place floor slab is made of cast-in-place concrete and is installed on the precast floor slabs and fixedly connected to the gate pier.

[0012] Furthermore, the upper and lower surfaces of the single prefabricated base plate are serrated, and adjacent single prefabricated base plates are tightly fitted together.

[0013] Furthermore, the single precast base slab includes a precast template, precast template side plates, and precast template partitions.

[0014] Furthermore, the gate includes a large floating steel box gate.

[0015] This invention also provides a construction process for building a tidal barrier chamber that allows for uninterrupted navigation on soft soil foundations, comprising the following steps:

[0016] Step S1: Preliminary calculations, including the stability calculation of the gate chamber, the vertical and horizontal bearing capacity calculation of the pile foundation, and the strength calculation of the large floating steel box gate;

[0017] Step S2: Prefabricate a single prefabricated base plate, wherein the upper and lower surfaces of the single prefabricated base plate are serrated;

[0018] Step S3: Install precast pile foundations. Drive precast pile foundations on the leveled soft soil foundation.

[0019] Step S4: Install the gate chamber bottom slab and gate piers, place single precast templates underwater, and then pour the cast-in-place bottom slab underwater to form an integral structure with the precast pile foundation, single precast templates and cast-in-place bottom slab;

[0020] Step S5: Install the gate. Place a large floating steel box gate on the bottom plate of the gate chamber to complete the structure of the tide-blocking gate chamber.

[0021] Furthermore, step S1 includes the following steps:

[0022] Step S11: Perform stability calculations for the sluice chamber according to the current specifications for sluice gates, and determine the length and width of the sluice chamber and piers;

[0023] Step S12: Calculate the vertical and horizontal bearing capacity of the pile foundation according to the current foundation treatment specifications, and determine the pile type, pile spacing, and pile length of the precast pile foundation;

[0024] Step S13: Based on the difference in water head between upstream and downstream and the width of the gate, calculate the strength of the large floating steel gate according to the current specifications, and determine the thickness of the large floating steel gate.

[0025] Furthermore, step S4 includes the following steps:

[0026] Step S41: Cast the gate pier and part of the gate chamber bottom plate located below the gate pier on site, wherein the edge of the part of the gate chamber bottom plate is serrated;

[0027] Step S42: Place a single prefabricated template underwater;

[0028] Step S43: Place the outer formwork and reinforcing cage of the cast-in-place base slab in sequence, and pour concrete underwater to form the cast-in-place base slab;

[0029] Step S44: Install the bottom sill outer formwork underwater and place the steel cage, pour concrete underwater to form the bottom sill, and complete the installation of the lock chamber bottom plate.

[0030] Compared with existing technologies, the advantages and effects of this application are as follows:

[0031] 1. The present invention provides a tide-blocking gate chamber for uninterrupted navigation constructed on soft soil foundation. The gate chamber structure is mainly composed of precast pile foundation, gate chamber bottom slab, gate, and gate pier. The horizontal loads upstream and downstream of the gate chamber are borne by the gate chamber structure, thus achieving the function of structural safety, stability and reliability. It can also achieve the purpose of efficient gate opening and closing, without affecting navigation, without affecting the surrounding environment, energy saving, green and environmental protection.

[0032] 2. The present invention provides a construction process for a tide-blocking gate chamber that allows for uninterrupted navigation on soft soil foundations. This process involves precast pile foundations, multiple precast base slabs, and a large-volume underwater cast-in-place concrete base slab to form an integral structure. A large floating steel box gate is then installed on the bottom slab of the gate chamber, forming the gate chamber structure of the tide-blocking gate. This achieves the advantages of cofferdam-free construction on water, uninterrupted navigation, rapid construction, minimal land occupation, convenient gate opening and closing, and environmental friendliness. It is suitable for constructing tide-blocking gates in large estuaries without interrupting navigation and has broad application prospects.

[0033] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the preferred embodiments of this application are described in detail below with reference to the accompanying drawings.

[0034] The above and other objects, advantages and features of this application will become more apparent to those skilled in the art from the following detailed description of specific embodiments in conjunction with the accompanying drawings. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0036] in:

[0037] Figure 1 This is a frontal water-blocking elevation view of the tide-blocking gate chamber structure described in this invention;

[0038] Figure 2 This is a top view of the tide-blocking gate chamber structure described in this invention;

[0039] Figure 3 This is a schematic diagram of the bottom plate splicing of the tide-blocking gate chamber described in this invention;

[0040] Figure 4 This is a schematic diagram of the single prefabricated base plate described in this invention;

[0041] Figure 5 This is a schematic diagram of the cross-section of the prefabricated template described in this invention;

[0042] Figure 6 This is a flowchart of the construction process of the gate chamber described in this invention.

[0043] Attached reference numerals: 1-gate chamber bottom slab; 11-bottom sill; 12-cast-in-place bottom slab; 13-single precast bottom slab; 131-precast formwork; 132-precast formwork side slab; 133-precast formwork partition; 2-gate; 3-gate pier; 4-precast pile foundation; 5-granite facing. Detailed Implementation

[0044] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. In the following description, specific details such as specific configurations and components are provided merely to help fully understand the embodiments of this application. Therefore, those skilled in the art should understand that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this application. In addition, for clarity and brevity, descriptions of known functions and structures are omitted in the embodiments.

[0045] It should be understood that the phrase "an embodiment" or "this embodiment" throughout the specification means that a specific feature, structure, or characteristic related to the embodiment is included in at least one embodiment of this application. Therefore, "an embodiment" or "this embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. Furthermore, these specific features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0046] Furthermore, reference numerals and / or letters may be repeated in different examples within this application. Such repetition is for the purpose of simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or settings discussed.

[0047] In this article, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist simultaneously. The term " / and" describes another type of relationship between related objects, indicating that two relationships can exist. For example, A / and B can mean: A exists alone, and A and B exist alone. In addition, the character " / " in this article generally indicates that the related objects before and after it have an "or" relationship.

[0048] In this article, the term "at least one" is merely a description of the relationship between related objects, indicating that there can be three relationships. For example, "at least one of A and B" can mean: A exists alone, A and B exist simultaneously, or B exists alone.

[0049] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion.

[0050] Example 1

[0051] This embodiment describes a tidal barrier gate chamber constructed on a soft soil foundation that allows for uninterrupted navigation. For its frontal water-retaining elevation view, please refer to [link / reference needed]. Figure 1 For the top view, please refer to Figure 2 .

[0052] A tidal barrier gate chamber for continuous navigation constructed on soft soil foundation is characterized by comprising a gate chamber bottom slab 1, a gate 2, a gate pier 3, and precast pile foundations 4.

[0053] The precast pile foundation 4 is fixed below the gate chamber bottom plate 1. The gate chamber bottom plate 1 includes a bottom sill 11. The gate 2 and gate pier 3 are installed above the gate chamber bottom plate 1.

[0054] The gate 2 is located between the bottom sills 11; the gate piers 3 are located on both sides of the gate 2.

[0055] Furthermore, a granite panel 5 is installed on one side of the gate 2, located between the gate 2 and the gate pier 3.

[0056] The technical effect achieved by this embodiment is that the present invention forms a tide-blocking gate structure together with precast pile foundation, gate chamber bottom slab, gate pier and gate. The horizontal force and other loads upstream and downstream of the gate chamber are borne by the gate chamber structure, thus achieving the function of structural safety, stability and reliability, and also achieving the effect of efficient gate opening and closing without affecting navigation.

[0057] Example 2

[0058] Based on Example 1, this example further introduces a tide-blocking gate chamber for uninterrupted navigation constructed on soft soil foundations. Please refer to the schematic diagram of its bottom plate assembly. Figure 3 Please refer to the schematic diagram of a single precast base slab. Figure 4 Please refer to the cross-sectional schematic diagram of the prefabricated module. Figure 5 .

[0059] Furthermore, the gate chamber bottom slab 1 also includes a cast-in-place bottom slab 12 and a plurality of precast bottom slabs 13. The cast-in-place bottom slab 12 is installed on the precast bottom slabs 13 and is fixedly connected to the gate pier 3.

[0060] Furthermore, the upper and lower surfaces of the single prefabricated base plate 13 are serrated, and adjacent single prefabricated base plates 13 are tightly fitted together.

[0061] Furthermore, the single precast base plate 13 includes a precast template 131, a precast template side plate 132, and a precast template partition 133.

[0062] Furthermore, the gate 2 includes a large floating steel box gate.

[0063] The technical effect achieved in this embodiment is that the present invention forms a tide-blocking gate chamber structure together with precast pile foundations, precast templates, underwater concrete cast-in-place base slabs, and large floating steel box gates. The upper and lower surfaces of the individual precast base slabs are serrated, which makes the adjacent individual precast base slabs fit together tightly and can better form an integral structure with the large-volume underwater cast-in-place concrete base slab, thus achieving a safe, stable and reliable structure.

[0064] Example 3

[0065] Based on Examples 1-2, this example introduces a construction process for constructing a tidal barrier chamber that allows for uninterrupted navigation on soft soil foundations. Please refer to [reference needed]. Figure 6 Here is a flowchart of the construction process of the gate chamber described in this invention, and the steps are as follows:

[0066] Step S1: Preliminary calculations, including the stability calculation of the gate chamber, the vertical and horizontal bearing capacity calculation of the pile foundation, and the strength calculation of the large floating steel box gate;

[0067] Step S2: Prefabricate a single prefabricated base plate 13, wherein the upper and lower surfaces of the single prefabricated base plate 13 are toothed;

[0068] Step S3: Install precast pile foundation 4. Drive precast pile foundation 4 into the leveled soft soil foundation.

[0069] Step S4: Install the gate chamber bottom plate 1 and gate pier 2, place the single precast template 13 underwater, and then pour the cast-in-place bottom plate 12 underwater to form an integral structure with the precast pile foundation 4, the single precast template 13 and the cast-in-place bottom plate 12.

[0070] Step S5: Install gate 2 and place a large floating steel box gate on the bottom plate of the gate chamber to complete the structure of the tide-blocking gate chamber.

[0071] Furthermore, step S1 includes the following steps:

[0072] Step S11: Perform stability calculations for the sluice chamber according to the current specifications for sluice gates, and determine the length and width of the sluice chamber and sluice gate pier 3;

[0073] Step S12: Calculate the vertical and horizontal bearing capacity of the pile foundation according to the current foundation treatment specifications, and determine the pile type, pile spacing, and pile length of the precast pile foundation 4;

[0074] Step S13: Based on the difference in water head between upstream and downstream and the width of gate 2, calculate the strength of the large floating steel gate according to the current specifications, and determine the thickness of the large floating steel gate.

[0075] Furthermore, step S4 includes the following steps:

[0076] Step S41: Cast the gate pier 3 and part of the gate chamber bottom plate 1 located below the gate pier 3 on site. The edge of the part of the gate chamber bottom plate 1 is serrated.

[0077] Step S42: Place a single precast template 13 underwater;

[0078] Step S43: Place the outer formwork of the cast-in-place base slab 12 and the reinforcing cage in sequence, and pour concrete underwater to form the cast-in-place base slab 12;

[0079] Step S44: Install the bottom sill outer formwork underwater and place the steel cage, pour concrete underwater to form the bottom sill 11, and complete the installation of the gate chamber bottom plate 1.

[0080] The technical effects achieved in this embodiment are as follows: by forming an integral structure with precast pile foundations, precast templates and a large-volume underwater cast-in-place concrete base plate, and by installing a large floating steel box gate on the bottom plate of the gate chamber, a tide-blocking gate chamber structure is formed. This achieves the effects of construction on water without cofferdam, uninterrupted navigation, fast construction, small land occupation, convenient gate opening and closing, green environmental protection and economy. It is suitable for the construction of tide-blocking gates in large estuaries without interrupting navigation and has broad application prospects.

[0081] The above description is merely a preferred embodiment of the present invention and does not limit the scope of protection of the present invention. For those skilled in the art, the present invention can have various modifications and variations. Any changes, modifications, substitutions, integrations, and parameter alterations to these embodiments within the spirit and principles of the present invention, achieved through conventional substitutions or by achieving the same function without departing from the principles and spirit of the present invention, fall within the scope of protection of the present invention.

Claims

1. A tidal barrier gate chamber for uninterrupted navigation constructed on soft soil foundations, characterized in that, Includes the gate chamber bottom slab (1), gate (2), gate pier (3), and precast pile foundation (4); The precast pile foundation (4) is fixed below the gate chamber bottom plate (1). The gate chamber bottom plate (1) includes a sill (11). A gate (2) and a gate pier (3) are installed above the gate chamber bottom plate (1). The gate (2) is located between the bottom sills (11); the gate piers (3) are located on both sides of the gate (2); The gate chamber bottom plate (1) also includes a cast-in-place bottom plate (12) and multiple precast templates (13). The cast-in-place bottom plate (12) is installed on the precast templates (13) and is fixedly connected to the gate pier (3). The upper and lower surfaces of the single prefabricated template (13) are serrated, and adjacent single prefabricated templates (13) are tightly fitted together; The single precast template (13) includes a precast template (131), a precast template side plate (132), and a precast template partition (133).

2. The tidal barrier gate chamber for uninterrupted navigation constructed on soft soil foundation according to claim 1, characterized in that, A granite panel (5) is installed on one side of the gate (2), located between the gate (2) and the gate pier (3).

3. A tidal barrier gate chamber for uninterrupted navigation constructed on soft soil foundations according to claim 1, characterized in that, The gate (2) includes a large floating steel box gate.

4. The construction process for constructing a continuous navigation tidal barrier chamber on a soft soil foundation according to any one of claims 1-3, characterized in that, Includes the following steps: Step S1: Preliminary calculations, including the stability calculation of the gate chamber, the vertical and horizontal bearing capacity calculation of the pile foundation, and the strength calculation of the large floating steel box gate; Step S2: Prefabricate a single prefabricated template (13), wherein the upper and lower surfaces of the single prefabricated template (13) are serrated; Step S3: Install precast pile foundation (4), drive precast pile foundation (4) on the leveled soft soil foundation. Step S4: Install the gate chamber bottom plate (1) and gate pier (3), place a single precast template (13) underwater, and then pour the cast-in-place bottom plate (12) underwater to form an integral structure with the precast pile foundation (4), the single precast template (13) and the cast-in-place bottom plate (12); Step S5: Install the gate (2), place a large floating steel box gate on the bottom plate of the gate chamber to complete the structure of the tide-blocking gate chamber.

5. The construction process for constructing a continuous navigation tidal barrier chamber on a soft soil foundation according to claim 4, characterized in that, Step S1 includes the following steps: Step S11: Perform stability calculations for the sluice chamber according to the current specifications for sluice gates, and determine the length and width of the sluice chamber and the gate pier (3); Step S12: Calculate the vertical and horizontal bearing capacity of the precast pile foundation (4) according to the current foundation treatment specifications, and determine the pile type, pile spacing and pile length of the precast pile foundation (4); Step S13: Based on the difference in water head between upstream and downstream and the width of the gate (2), calculate the strength of the large floating steel box gate according to the current specifications, and determine the thickness of the large floating steel box gate.

6. The construction process for constructing a continuous navigation tidal barrier chamber on a soft soil foundation according to claim 5, characterized in that, Step S4 includes the following steps: Step S41: Cast the gate pier (3) and part of the gate chamber bottom plate (1) located below the gate pier (3) on site. The edge of the part of the gate chamber bottom plate (1) is serrated. Step S42: Place a single precast template underwater (13); Step S43: Place the outer formwork of the cast-in-place base slab (12) and the reinforcing cage in sequence, and pour concrete underwater to form the cast-in-place base slab (12). Step S44: Install the bottom sill outer formwork underwater and place the steel cage, pour concrete underwater to form the bottom sill (11), and complete the installation of the gate chamber bottom plate (1).

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