Continuous-navigation tide gate chamber constructed on soft soil foundation and construction technology of tide gate chamber

Abstract

The invention relates to a continuous-navigation tide gate chamber constructed on a soft soil foundation and a construction technology of the tide gate chamber. The tide gate chamber comprises a gate chamber bottom plate, a gate, gate piers and prefabricated pile foundations. The precast pile foundation is fixed below the lock chamber bottom plate, the lock chamber bottom plate comprises a bottom sill, and a gate and a gate pier are installed above the lock chamber bottom plate; the gate is positioned between the bottom sills; the gate piers are located on the two sides of the gate. The construction technology of the large-scale floating type steel box door comprises the steps of early-stage calculation, prefabrication of a single prefabricated bottom plate, installation of the prefabricated pile foundation, installation of the lock chamber bottom plate and the gate piers and installation of the gate, the prefabricated pile foundation, the prefabricated formwork and the cast-in-place bottom plate of large-size underwater cast-in-place concrete form an integral structure, and the large-scale floating type steel box door is placed on the lock chamber bottom plate; the cofferdam-free overwater construction is realized, the construction time is shortened, and the cofferdam-free overwater tide gate chamber structure is suitable for constructing tide gates in large estuary regions in a continuous navigation manner.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic gates, and in particular to a tidal gate chamber constructed on a soft soil foundation and capable of being continuously navigated, and a construction process thereof. Background Art

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

[0003] The construction of new tidal gates in coastal urban estuaries is often restricted by hydrological conditions, geological conditions, construction sites, and surrounding environment. At the same time, it must meet the requirements of uninterrupted navigation during the construction period, occupy less land, and not affect the river flow, which greatly increases the difficulty of gate construction. According to the experience of traditional sluice construction, if the foundation is soft soil, the sluice is generally constructed by dry construction using a large cofferdam on the water, or by using deep foundation pit on the water. Both of the above construction methods will cause navigation interruption during the construction period.

[0004] Chinese utility model patent CN114892700A (publication date: August 12, 2022) discloses a composite foundation structure of a soft foundation tide gate near the sea and a construction method thereof, comprising soil, a plurality of fixed piles arranged in the soil for reinforcing the soil, a cushion layer arranged above the soil, a concrete layer arranged above the cushion layer, and a water seepage layer arranged on one side of the concrete layer, a plurality of drainage pipes are arranged in a plum blossom shape in the water seepage layer, a mesh fastener is arranged in the cushion layer, and the fixed piles include a first cylindrical pile, a second cylindrical pile 8, and a third cylindrical pile, the first cylindrical pile and the third cylindrical pile are located on both sides of the second cylindrical pile 8, and the first cylindrical pile and the third cylindrical pile are respectively crossed with the second cylindrical pile 8. It has a large bearing capacity, is easy to drain, etc., and can be in a stable state for a long time, ensuring the service life of the soil foundation.

[0005] After searching, it is found that the current research on tide gates mainly focuses on the improvement of gate structures, achieving larger spans, and multi-functions. Although the above patent is also about construction on soft soil foundations, it does not achieve uninterrupted navigation in the river. Based on this, the present invention provides a tide gate chamber and its construction process for uninterrupted navigation on soft soil foundations. Summary of the invention

[0006] The purpose of the present invention is to overcome the problem that the existing tidal gate is disconnected from navigation during construction on a soft soil foundation, resulting in a long construction period and high cost, and to provide a tidal gate chamber that can be constructed on a soft soil foundation without interrupting navigation and a construction process thereof.

[0007] A tidal gate chamber constructed on a soft soil foundation and capable of continuous navigation, comprising a chamber bottom plate, a gate, a gate pier, and a prefabricated pile foundation;

[0008] The prefabricated pile foundation is fixed below the bottom plate of the gate chamber, the bottom plate of the gate chamber includes a bottom sill, and a gate and a gate pier are installed above the bottom plate of the gate chamber;

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

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

[0011] Furthermore, the gate chamber bottom plate also includes a cast-in-place bottom plate and a plurality of single prefabricated bottom plates. The cast-in-place bottom plate is cast-in-place concrete, installed on the single prefabricated bottom plate, and fixedly connected to the gate pier.

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

[0013] Furthermore, the single prefabricated bottom plate includes a prefabricated template, a prefabricated template side plate and a prefabricated template partition plate.

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

[0015] The present invention also provides a construction process for constructing a tidal gate chamber that is unobstructed on a soft soil foundation, comprising the following steps:

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

[0017] Step S2: prefabricate a single prefabricated bottom plate, wherein the upper and lower surfaces of the single prefabricated bottom plate are tooth-shaped;

[0018] Step S3: installing prefabricated pile foundations, and driving prefabricated pile foundations on the leveled soft soil foundation;

[0019] Step S4: installing the lock chamber bottom plate and the lock pier, placing a single prefabricated formwork underwater, and then casting the cast-in-place bottom plate underwater to form an integral structure with the prefabricated pile foundation, the single prefabricated formwork and the cast-in-place bottom plate;

[0020] Step S5: Install the gate, place a large floating steel box door on the bottom plate of the gate chamber, and complete the gate chamber structure of the tide gate.

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

[0022] Step S11, performing a lock chamber stability calculation according to the current specifications of the sluice, and determining the length and width of the lock chamber and the gate pier;

[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 prefabricated pile foundation;

[0024] Step S13: Calculate the strength of the large floating steel box door according to the current specifications based on the upstream and downstream water head difference and the width of the gate, and determine the thickness of the large floating steel box door.

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

[0026] Step S41, casting the gate pier and a portion of the gate chamber bottom plate below the gate pier on site, wherein the edge of the portion of the gate chamber bottom plate is serrated;

[0027] Step S42, placing a single prefabricated template underwater;

[0028] Step S43, placing the outer formwork of the cast-in-place floor and the steel cage in sequence, and pouring concrete underwater to form the cast-in-place floor;

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

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

[0031] 1. The present invention provides a tide gate chamber that is constructed on a soft soil foundation and is unobstructed for navigation. The tide gate chamber structure is mainly formed by a prefabricated pile foundation, a chamber bottom plate, a gate, and a gate pier. The horizontal forces and other loads upstream and downstream of the chamber are borne by the chamber structure to achieve a safe, stable and reliable structure. The purpose of efficient opening and closing of the gate, no impact on navigation, no impact on the surrounding environment, energy saving, greenness and environmental protection can be achieved.

[0032] 2. The present invention provides a construction process for a tide-blocking gate chamber that is constructed on a soft soil foundation and is uninterrupted by navigation. The process forms an integral structure through a prefabricated pile foundation, a plurality of single prefabricated bottom plates and a large-volume cast-in-place concrete bottom plate, and a large floating steel box door is placed on the bottom plate of the gate chamber to form a gate chamber structure of the tide-blocking gate, thereby achieving the effects of cofferdam-free water construction, uninterrupted navigation, fast construction, small land occupation, convenient gate opening and closing, and green environmental protection. The process is suitable for the construction of tide-blocking gates for uninterrupted navigation in large estuary areas and has broad application prospects.

[0033] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application so that it can be implemented in accordance with the contents of the specification, and to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the following is a detailed description of the preferred embodiments of the present application in conjunction with the accompanying drawings as follows.

[0034] Based on the detailed description of the specific embodiments of the present application in combination with the accompanying drawings below, those skilled in the art will become more aware of the above and other objects, advantages and features of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings required for use in the embodiments or the prior art descriptions are briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can also be obtained based on these drawings without creative work. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0036] in:

[0037] Figure 1 This is a front view of the water retaining structure of the tidal gate chamber of the present invention;

[0038] Figure 2 is a top view of the sluice chamber structure of the tide gate of the present invention;

[0039] Figure 3 It is a schematic diagram of the bottom plate splicing of the tidal gate chamber of the present invention;

[0040] Figure 4 is a schematic diagram of a single prefabricated base plate according to the present invention;

[0041] Figure 5 It is a schematic cross-sectional view of the prefabricated template of the present invention;

[0042] Figure 6 It is a flow chart of the construction process of the lock chamber of the present invention.

[0043] Figure numerals: 1 - chamber bottom plate; 11 - sill; 12 - cast-in-place bottom plate; 13 - single prefabricated bottom plate; 131 - prefabricated formwork; 132 - prefabricated formwork side plate; 133 - prefabricated formwork partition; 2 - gate; 3 - gate pier; 4 - prefabricated pile foundation; 5 - granite facing. DETAILED DESCRIPTION

[0044] To make the purpose, technical scheme and advantages of the embodiment of the present application clearer, the technical scheme in the embodiment of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present application. Obviously, the described embodiment is a part of the embodiment of the present application, rather than all of the embodiments. In the following description, specific details such as specific configuration and components are provided only to help fully understand the embodiments of the present application. Therefore, it should be clear to those skilled in the art that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of the present application. In addition, for clarity and brevity, the description of known functions and structures is omitted in the embodiment.

[0045] It should be understood that the references to "one embodiment" or "this embodiment" throughout the specification mean that the specific features, structures, or characteristics associated with the embodiment are included in at least one embodiment of the present application. Therefore, the references to "one embodiment" or "this embodiment" appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

[0046] In addition, the present application may repeat reference numerals and / or letters in different examples. This repetition is for the purpose of simplicity and clarity, and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0047] The term "and / or" in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: A exists alone, B exists alone, and A and B exist at the same time. The term " / and" in this article describes another type of association object relationship, indicating that there can be two relationships. 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 associated objects before and after are in an "or" relationship.

[0048] The term "at least one" in this article is merely a description of the association relationship of associated objects, indicating that there may be three relationships. For example, at least one of A and B can mean: A exists alone, A and B exist at the same time, and B exists alone.

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

[0050] Example 1

[0051] This embodiment introduces a tidal gate chamber constructed on a soft soil foundation without any navigation. Figure 1 , see the top view Figure 2 .

[0052] A tidal gate chamber constructed on a soft soil foundation and capable of being navigated continuously, characterized in that it comprises a chamber bottom plate 1, a gate 2, a gate pier 3, and a prefabricated pile foundation 4;

[0053] The prefabricated pile foundation 4 is fixed below the lock chamber bottom plate 1, the lock chamber bottom plate 1 includes a sill 11, and a gate 2 and a gate pier 3 are installed above the lock 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 facing 5 is installed on one side of the gate 2 and is located between the gate 2 and the gate pier 3 .

[0056] The technical effect achieved by this embodiment is as follows: the present invention comprises a prefabricated pile foundation, a chamber bottom plate, a pier and a gate to form a tide-blocking gate chamber structure. The horizontal forces and other loads upstream and downstream of the chamber are borne by the chamber structure to achieve a safe, stable and reliable structure, and the gate can be opened and closed efficiently without affecting navigation.

[0057] Example 2

[0058] Based on Example 1, this example further introduces a tidal gate chamber that is constructed on a soft soil foundation without any navigation. Figure 3 , please refer to the schematic diagram of a single prefabricated base plate Figure 4 , please refer to the schematic diagram of the prefabricated module section Figure 5 .

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

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

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

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

[0063] The technical effect achieved by this embodiment is as follows: the present invention comprises a prefabricated pile foundation, a prefabricated formwork, an underwater cast-in-place concrete bottom plate, and a large floating steel box door to form a tide gate chamber structure. The upper and lower surfaces of a single prefabricated bottom plate are serrated, so that adjacent single prefabricated bottom plates are tightly fitted together, and can better form an integral structure with a large volume of underwater cast-in-place concrete bottom plate, thereby achieving a safe, stable and reliable structure.

[0064] Example 3

[0065] Based on Example 1-2, this example introduces a construction process for constructing a tidal gate chamber on a soft soil foundation. Please refer to Figure 6 , is a flow chart of the construction process of the lock chamber of the present invention, the steps are as follows:

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

[0067] Step S2: prefabricate a single prefabricated bottom plate 13, wherein the upper and lower surfaces of the single prefabricated bottom plate 13 are tooth-shaped;

[0068] Step S3: installing the prefabricated pile foundation 4, and driving the prefabricated pile foundation 4 on the leveled soft soil foundation;

[0069] Step S4: installing the lock chamber bottom plate 1 and the lock pier 2, placing a single prefabricated template 13 underwater, and then casting the cast-in-place bottom plate 12 underwater to form an integral structure with the prefabricated pile foundation 4, the single prefabricated template 13 and the cast-in-place bottom plate 12;

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

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

[0072] Step S11, performing a lock chamber stability calculation according to the current specifications of the sluice, and determining the length and width of the lock chamber and the gate pier 3;

[0073] Step S12, calculating the vertical and horizontal bearing capacity of the pile foundation according to the current foundation treatment specifications, and determining the pile type, pile spacing, and pile length of the prefabricated pile foundation 4;

[0074] Step S13, according to the upstream and downstream head difference and the width of the gate 2, the strength of the large floating steel box door is calculated according to the current specifications to determine the thickness of the large floating steel box door.

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

[0076] Step S41, casting the gate pier 3 and a portion of the gate chamber bottom plate 1 located below the gate pier 3 on site, wherein the edge of the portion of the gate chamber bottom plate 1 is serrated;

[0077] Step S42, placing a single prefabricated template 13 underwater;

[0078] Step S43, placing the outer formwork of the cast-in-place base plate 12 and the steel cage in sequence, and pouring concrete underwater to form the cast-in-place base plate 12;

[0079] Step S44, installing the sill outer formwork underwater and placing the steel cage, pouring concrete underwater to form the sill 11, and completing the installation of the lock chamber bottom plate 1.

[0080] The technical effect achieved by this embodiment is: an integral structure is formed by prefabricated pile foundations, prefabricated formwork and a large-volume underwater cast-in-place concrete bottom plate, and a large floating steel box door is placed on the bottom plate of the lock chamber to form a tide gate chamber structure, thereby achieving cofferdam-free water construction, 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 gates with uninterrupted navigation in large estuary areas and has broad application prospects.

[0081] The above description is only the preferred embodiment of the present invention, which does not limit the protection scope of the present invention. For those skilled in the art, the present invention can be modified and varied in various ways. Within the spirit and principle of the present invention, any change, modification, replacement, integration and parameter change of these embodiments by conventional substitution or capable of achieving the same function without departing from the principle and spirit of the present invention shall fall within the protection scope of the present invention.

Claims

1. A tidal lock chamber constructed on a soft soil foundation without navigation, characterized in that: It comprises a gate chamber bottom plate (1), a gate (2), a gate pier (3), and a prefabricated pile foundation (4); The prefabricated pile foundation (4) is fixed below the gate chamber bottom plate (1), the gate chamber bottom plate (1) comprises a sill (11), and 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); and the gate piers (3) are located on both sides of the gate (2).

2. A tidal gate chamber constructed on a soft soil foundation without navigation according to claim 1, characterized in that: A granite facing (5) is installed on one side of the gate (2) and is located between the gate (2) and the gate pier (3).

3. A tidal gate chamber constructed on a soft soil foundation without navigation according to claim 1 or 2, characterized in that: The gate chamber bottom plate (1) further comprises a cast-in-place bottom plate (12) and a plurality of single prefabricated bottom plates (13); the cast-in-place bottom plate (12) is mounted on the single prefabricated bottom plate (13) and is fixedly connected to the gate pier (3).

4. A tidal gate chamber constructed on a soft soil foundation without navigation according to claim 3, characterized in that: The upper and lower surfaces of the single prefabricated bottom plates (13) are serrated, and adjacent single prefabricated bottom plates (13) are tightly fitted together.

5. The tidal lock chamber constructed on a soft soil foundation without navigation according to claim 4, characterized in that: The single prefabricated bottom plate (13) comprises a prefabricated template (131), a prefabricated template side plate (132) and a prefabricated template partition plate (133).

6. The tidal lock chamber constructed on a soft soil foundation without navigation according to claim 4, characterized in that: The gate (2) comprises a large floating steel box door.

7. A construction process for constructing a tidal gate chamber that is not navigable on a soft soil foundation according to any one of claims 1 to 6, characterized in that: The following steps are involved: Step S1: Preliminary calculations, including calculations of the stability of the lock chamber, calculations of the vertical and horizontal bearing capacity of the pile foundation, and calculations of the strength of the large floating steel box door; Step S2: prefabricate a single prefabricated bottom plate (13), wherein the upper and lower surfaces of the single prefabricated bottom plate (13) are serrated; Step S3: installing the prefabricated pile foundation (4), and driving the prefabricated pile foundation (4) on the leveled soft soil foundation; Step S4: installing the lock chamber bottom plate (1) and the lock pier (2), placing a single prefabricated template (13) underwater, and then casting the cast-in-place bottom plate (12) underwater, forming an integral structure with the prefabricated pile foundation (4), the single prefabricated template (13) and the cast-in-place bottom plate (12); Step S5: Install the gate (2), place a large floating steel box door on the bottom plate of the chamber, and complete the chamber structure of the tide gate.

8. The construction process of a tidal gate chamber for constructing a navigation-free tidal gate on a soft soil foundation according to claim 7, characterized in that: The step S1 comprises the following steps: Step S11, performing a lock chamber stability calculation according to the current specifications of the sluice, and determining the length and width of the lock chamber and the gate pier (3); Step S12, calculating the vertical and horizontal bearing capacity of the prefabricated pile foundation (4) according to the current foundation treatment specifications, and determining the pile type, pile spacing, and pile length of the prefabricated pile foundation (4); Step S13, according to the upstream and downstream water head difference and the width of the gate (2), the strength of the large floating steel box door is calculated according to the current specifications to determine the thickness of the large floating steel box door.

9. The construction process of a tidal gate chamber for constructing a navigation-free tidal gate on a soft soil foundation according to claim 8, characterized in that: The step S4 comprises the following steps: Step S41, casting on site the gate pier (3) and a portion of the gate chamber bottom plate (1) located below the gate pier (3), wherein the edge of the portion of the gate chamber bottom plate (1) is serrated; Step S42, placing a single prefabricated template (13) underwater; Step S43, sequentially placing the outer formwork of the cast-in-place base plate (12) and the steel cage, and pouring concrete underwater to form the cast-in-place base plate (12); Step S44, installing the sill outer formwork underwater and placing the steel cage, pouring concrete underwater to form the sill (11), and completing the installation of the lock chamber bottom plate (1).

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