Construction method of breast wall of semi-vertical breakwater

Abstract

The invention relates to the technical field of breakwater construction, in particular to a construction method of a breast wall of a semi-vertical breakwater, which comprises the following steps: S1, using land equipment to fill a first block stone on the top of a caisson from the breakwater root to the breakwater head to the open sea side of the caisson to form a breakwater core structure; s2, using land equipment to fill second block stones to the top of the caisson and the top of the breakwater core structure from the breakwater root to the breakwater head to form a construction road; s3, the land equipment is used for sequentially digging out the second block stones corresponding to the tops of the caissons in the direction from the breakwater head to the breakwater root of the breakwater; and S4, concrete is poured on the top of the caisson to form breast wall sections, and all the breast wall sections are sequentially poured in the direction from the breakwater head to the breakwater root of the breakwater to form a breast wall. The construction shortcut is built on the top of the caisson, it can be guaranteed that pouring of each breast wall can be conducted through the construction shortcut by means of land construction equipment, a workboat does not need to be used, the rental cost of the workboat can be saved, and the operation cost is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of breakwater construction, and in particular to a construction method for a breast wall of a semi-vertical breakwater. Background Art

[0002] As an important building in the port waters, the breakwater can block or weaken the invasion of waves on the port waters through its structure, which helps to maintain the stability of the port waters and provide a relatively quiet and stable berthing and operating environment for ships. Under severe weather conditions, the breakwater can significantly reduce the impact of waves on the port and protect the safety of port facilities and ships. In the existing breakwater construction process, if a caisson is used as the foundation, it is necessary to backfill blocks on one side of the caisson to form a slope and compact the foundation, and then cast the breakwater breast wall above the caisson structure. The existing technology usually uses ship-borne backfill to blow fill along the breakwater, and then excavate the breast wall construction trench and construct the breast wall, but the rental fee of the construction ship is expensive and the cost is high. Summary of the invention

[0003] The purpose of the present invention is to overcome the technical problem of high construction cost caused by using a construction ship to fill the breakwater caisson and excavate a construction trench for breast wall construction in the prior art, and to provide a construction method for the breast wall of a semi-vertical breakwater.

[0004] The present invention provides a construction method for a breast wall of a semi-vertical breakwater, comprising: S1: using land equipment to stack a first stone on the top of a caisson from the root of the breakwater toward the head of the breakwater to the outer sea side of the caisson to form a core structure of the breakwater, and the stacking height of the first stone is consistent with the elevation of the caisson; S2: using the land equipment to stack a second stone from the root of the breakwater toward the head of the breakwater to the top of the caisson and the top of the core structure of the breakwater to form a construction access road, and the stacking height of the second stone is higher than the highest water level; S3: using the land equipment to sequentially excavate the second stone corresponding to the top of each caisson from the head of the breakwater toward the root of the breakwater, and the length of each excavation is consistent with the length of the corresponding caisson; S4: after each excavation of the second stone, concrete is poured on the top of the corresponding caisson to form a corresponding breast wall section, and each breast wall section is sequentially poured from the head of the breakwater toward the root of the breakwater to form the breast wall.

[0005] In the present application, a second stone is piled on top of the caisson and on top of the first stone piled to form the core structure of the embankment to raise it as a construction access road. The height of the second stone needs to be higher than the highest water level, that is, even at high tide, it will not affect the entry and exit of land construction equipment into the breakwater, and it is convenient for land construction equipment to carry out breast wall pouring construction. Here, the land construction equipment can be an excavator, a loader, etc., and the construction equipment used for pouring the breast wall can be a concrete pump truck, etc. Specifically, the construction direction of the construction access road is from the root of the embankment to the head of the embankment, that is, the second stone is piled from a position close to the coast (land side) until it is piled to a position far from the coast. The excavation starts from the dike head and ends at the dike root (sea side). After the construction access road is completed, the second stone is excavated in the reverse direction from the dike head to the dike root to expose the top of the caisson to form the construction site of the breast wall. The length of each excavation is consistent with the length of the corresponding caisson, that is, the length of each breast wall section. After each excavation, the pouring construction of the breast wall section can be carried out. In other words, the excavation and pouring direction is from the dike head in the reverse direction toward the dike root, which can ensure that the pouring of each breast wall section can be carried out by using land construction equipment through the construction access road. Therefore, there is no need to use a construction ship, which can save the high cost of renting a construction ship and can greatly reduce the operating cost.

[0006] Preferably, the casting of the breast wall section includes: A1: tying steel bars on the top of the corresponding caisson and setting up a first formwork; A2: pouring first concrete in the first formwork to form a first layer of breast wall.

[0007] After the construction site of the breast wall is excavated, the reinforcement can be tied and the formwork can be erected. The concrete breast wall can be poured in layers or as a whole. If it is poured in layers, the first formwork (i.e. the bottom formwork) can be erected first, and the first concrete can be poured in the first formwork until the first formwork is completely filled to form the first layer of the breast wall (i.e. the bottom breast wall).

[0008] Preferably, the pouring of the breast wall section further includes: A3: removing the first formwork after the first concrete solidifies, and erecting a second formwork above the first breast wall; A4: pouring second concrete into the second formwork to form a second breast wall.

[0009] After the first layer of breast wall is poured and solidified, the first formwork can be removed first, and then the second formwork (middle formwork or upper formwork) can be erected above the first layer of breast wall, and then the second concrete can be poured into the second formwork until the second formwork is completely filled to form the second layer of breast wall (middle breast wall or upper breast wall).

[0010] Preferably, the pouring of the breast wall section also includes: A5: removing the second formwork after the second concrete solidifies, and erecting a third formwork above the second breast wall; A6: pouring the third concrete into the third formwork to form a third breast wall.

[0011] After the second breast wall is poured and solidified, the second formwork can be removed first, and then the third formwork (upper formwork) can be erected above the second breast wall, and then the third concrete can be poured into the third formwork until the third formwork is completely filled to form the third breast wall (upper breast wall). Layered pouring of breast walls can improve the stability and safety of breast wall structures.

[0012] Preferably, after each section of the breast wall segment is cast, before the next section of the breast wall segment is cast, the excavated second stone is backfilled into the groove of the cast breast wall segment.

[0013] The cross-sectional structure of some breast walls may be similar to a U-shaped structure. The side close to the open sea may be a semi-upright trapezoidal breast wall structure, and the side close to the port may be a rectangular raised structure. Fenders may be installed for mooring ships. A groove may be left between the breast walls on both sides after the concrete is poured. The groove needs to be filled with stones to raise it as the foundation of the breast wall platform. To improve construction efficiency, after the previous breast wall is poured and before the next breast wall is poured, the second stone excavated from the construction site of the next breast wall may be filled into the groove of the previous breast wall. This may realize the secondary utilization of stone and save construction materials. The excavated second stone may realize the immediate filling of the groove of the previous breast wall, which also improves construction efficiency.

[0014] Preferably, fourth concrete is poured on top of the second stone backfilled into the groove of the breast wall section to form a breast wall platform.

[0015] After the second stone is filled in the groove, concrete can be poured on top of the stone to form a concrete slab as a breast wall platform, that is, the road surface on the breast wall can be used as an inlet and outlet passage for subsequent construction equipment, personnel and vehicles.

[0016] Preferably, on the breast wall platform, the onshore equipment is used to pile a third stone on the slope formed by the first stone and perform slope leveling, and the filling height of the third stone is higher than the elevation of the breast wall platform.

[0017] After the breast wall platform is built, the onshore construction equipment (such as excavators, etc.) can be driven to the breast wall platform, and the third stone (i.e. cushion stone) can be piled on the slope of the embankment core structure formed by the first stone to continue raising the slope while carrying out slope leveling operations. The filling height of the third stone can be higher than the elevation of the breast wall platform.

[0018] Preferably, twist king blocks are installed on the slope surface formed by the third stone, and the twist king blocks are stacked and installed from the bottom of the slope to the top of the slope.

[0019] A plurality of twist king blocks can be arranged on the slope formed by the third stone to mitigate the impact force of the waves and increase the wave-blocking performance of the breakwater.

[0020] Preferably, before the first stone is stacked, a fourth stone is stacked in the caisson, and a fifth concrete is poured on top of the fourth stone to form a cushion layer, and the sum of the stacking height of the fourth stone and the pouring height of the fifth concrete is consistent with the height of the caisson.

[0021] A caisson is usually a hollow box whose inner cavity can be partitioned by a steel structure. A fourth stone can be filled in the caisson to increase the weight of the caisson to improve stability, and concrete can be poured on top of the fourth stone to form a cushion layer to facilitate the construction of the breast wall above the caisson. The sum of the filling height of the fourth stone and the pouring height of the fifth concrete can be consistent with the height of the caisson, that is, the fourth stone and the fifth concrete can completely fill the caisson.

[0022] Preferably, an installation seam is reserved between two adjacent breast wall sections.

[0023] During pouring, installation joints are reserved between breast wall sections to provide expansion and contraction space for the thermal expansion and contraction of the breast wall sections.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] The present invention provides a construction method for a breast wall of a semi-vertical breakwater, which can form a construction access road above the water level by filling blocks of stone on the top of a caisson and a core structure. The construction access road can be constructed by filling blocks of stone in a direction from the root of the dyke to the head of the dyke. After the construction of the construction access road is completed, a second stone is excavated in the reverse direction from the head of the dyke to the root of the dyke to expose the top of the caisson to form a construction site of the breast wall. After each excavation, the casting construction operation of the breast wall section can be carried out. The excavation and casting direction is from the head of the dyke to the root of the dyke in the reverse direction. It can be ensured that the casting of each breast wall section can be carried out by using land construction equipment through the construction access road. Therefore, there is no need to use a construction ship for operation, which can save the high cost of renting a construction ship and can greatly reduce the operation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic cross-sectional diagram of the breakwater without cast breast wall.

[0027] Figure 2 This is a schematic cross-sectional diagram of the breakwater with the breast wall cast.

[0028] Figure 3 Schematic diagram of the layered casting of the breakwater breast wall.

[0029] Figure 4 This is a schematic elevation diagram of the breakwater.

[0030] Figure 5 A top view of the breakwater caisson.

[0031] Figure 6 This is a bird's-eye view of the breakwater.

[0032] Markings in the figure:

[0033] 1. Caisson, 2. Breast wall section, 21. First breast wall, 22. Second breast wall, 23. Third breast wall, 24. Breast wall platform, 25. Fender, 3. First stone, 4. Second stone, 5. Third stone, 6. Fourth stone, 7. Cushion, 8. Twist block, 9. Construction access road, 10. Installation joint. DETAILED DESCRIPTION

[0034] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0035] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or are the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0036] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0037] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0038] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0039] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0040] Example

[0041] This embodiment provides a construction method for a breast wall of a semi-vertical breakwater.

[0042] Figure 1 This is a schematic cross-sectional view of a breakwater without a breast wall cast; Figure 2 This is a schematic cross-sectional view of the breakwater with the breast wall already cast; Figure 3 This is a schematic diagram of the layered pouring of the breakwater breast wall; Figure 4 This is a schematic elevation diagram of the breakwater; Figure 5 It is a top view schematic diagram of the breakwater caisson; Figure 6 This is a bird's-eye view of the breakwater.

[0043] It should be noted that Figure 1 and Figure 2 The direction indicated by the arrow A is the outer sea side of the breakwater. Figure 4 , Figure 5 and Figure 6 The arrow C in the middle indicates the head side of the breakwater, and the arrow D indicates the root side of the breakwater.

[0044] like Figures 1 to 5 As shown in , the construction method of the breast wall of the semi-vertical breakwater described in this embodiment is based on a breakwater structure with the caisson 1 as the foundation. Before adopting the construction method of the breast wall of the semi-vertical breakwater of this embodiment, the foundation of the caisson 1 must be constructed first, that is, first, multiple caissons 1 must be placed underwater as a foundation, and then the breakwater breast wall must be constructed on top of the caisson 1.

[0045] For example, the number of caissons 1 is 35. Here, the 35 caissons 1 are numbered from the land side to the sea side (i.e., from the root of the breakwater to the head of the breakwater). That is, the caisson 1 closest to the coast is numbered 1#, and the caisson 1 farthest from the coast is numbered 35#. Based on this, the construction method of the breast wall of the semi-vertical breakwater described in this embodiment may include the following steps:

[0046] S1: In the low tide state, that is, the water level is lower than the top of the caisson 1, use land construction equipment such as excavators or loaders to drive to the top of the caisson 1, and fill the first stone 3 to the outer sea side of the caisson 1 to form a core structure. The filling direction of the first stone 3 is from the land side to the sea side, that is, the direction from the root of the breakwater to the head of the breakwater, that is, from 1# caisson to 35# caisson in sequence. After the first stone 3 is filled, the side of the caisson 1 facing the outer sea can be covered, and a slope with a certain inclination can be formed to facilitate subsequent filling construction and then form the slope structure of the breakwater. In addition, after the first stone 3 is filled, the filling height of the first stone 3 can be consistent with the elevation of the top of the caisson 1. For example, if the elevation of the top of the caisson 1 is 2.2m, the filling height of the first stone 3 can also be 2.2m.

[0047] Here, the mass range of the first stone 3 can be 10kg to 100kg, and the sand and mud content of the embankment core structure formed after the first stone 3 is filled can be less than 5%, but the above-mentioned mass range of the first stone 3 and the sand and mud content range of the embankment core structure are only one case described in this embodiment. In other embodiments of the present invention, the mass range of the first stone 3 and the sand and mud content range of the embankment core structure can also be any other range, and the present invention does not make any specific limitation on this.

[0048] S2: After the first stone 3 is filled, an excavator or loader or other land construction equipment can be used to drive to the top of the caisson 1, and the second stone 4 can be filled to the top of the caisson 1 and the top of the embankment core structure formed by the first stone 3 to form a construction access road 9. The filling direction of the second stone 4 is from the land side to the sea side, that is, the direction from the root of the breakwater to the head of the breakwater, that is, from 1# caisson to 35# caisson in sequence. The filling height of the second stone 4 needs to be higher than the highest water level, that is, the elevation of the construction access road 9 is higher than the highest water level, which can ensure that when the tide is high, the land construction equipment can also drive or operate on the construction access road 9 without being affected by the water level.

[0049] S3: After the construction of the construction access road 9 is completed, an excavator or loader or other land construction equipment can be used to drive onto the construction access road 9, and the second stone 4 on the top of the caisson 1 is dug out in sequence from the 35# caisson to the 1# caisson to form a construction site for the breast wall. The length of each excavation is consistent with the length of the corresponding caisson 1. Specifically, the second stone 4 on the top of the 35# caisson is firstly dug out to form a construction site for the breast wall section 2 on the top of the 35# caisson, and then the breast wall section 2 on the top of the 35# caisson is cast. After the casting construction of the breast wall section 2 on the top of the 35# caisson is completed, the second stone 4 on the top of the 34# caisson is excavated, and then the casting construction of the breast wall section 2 on the top of the 34# caisson is carried out. Similarly, the second stone 4 is excavated in sequence and the breast wall section 2 on the top of the corresponding caisson 1 is constructed until the second stone 4 on the top of the 1# caisson is excavated and the construction of the breast wall section 2 on the top of the 1# caisson is completed. In this way, the construction work of the breast wall sections 2 on the top of all caissons 1 can be completed, and the overall breast wall construction of the breakwater is realized.

[0050] Here, the pouring construction sequence of the breast wall is consistent with the excavation sequence of the second stone 4, that is, 35# caisson, 34# caisson...2# caisson to 1# caisson, which can also be said to be from the coastal side to the land side, that is, from the head of the breakwater to the root of the breakwater.

[0051] In this embodiment, for the pouring construction work of each breast wall section 2, the breast wall section 2 can be divided into three layers of breast walls from bottom to top for sequential pouring, which can be specifically carried out in the following steps:

[0052] A1: After excavating the second stone 4 corresponding to the top of the caisson 1 to form the breast wall construction site, steel bars are tied on the top of the caisson 1 (not shown in the figure), and a first formwork (not shown in the figure) is erected on the outside of the steel bars. The first formwork is the bottom formwork.

[0053] A2: Pour the first concrete in the space enclosed by the first formwork until the space in the first formwork is completely filled, thereby forming the first breast wall 21.

[0054] A3: After the first concrete solidifies, the first formwork is removed, and a second formwork (not shown in the figure) is set up above the first breast wall 21. The second formwork is the middle layer formwork.

[0055] A4: Pour the second concrete in the space enclosed by the second formwork until the space in the second formwork is completely filled, thereby forming the second breast wall 22.

[0056] A5: After the second concrete solidifies, the second formwork is removed, and a third formwork (not shown in the figure) is set up above the second breast wall 22. The third formwork is the upper formwork.

[0057] A6: Pour the third concrete in the space enclosed by the third formwork until the space in the third formwork is completely filled, thereby forming the third breast wall 23.

[0058] After pouring three layers of breast wall, the overall structure of breast wall section 2 can be finally formed.

[0059] Of course, the casting of the breast wall section 2 can also be carried out as a whole without stratification, or it can be cast in two layers. If it is cast as a whole, only one layer of formwork needs to be set up, that is, the whole formwork casting. If it is cast in two layers, two layers of formwork can be set up, and the first formwork can be regarded as the lower formwork, and the second formwork can be regarded as the upper formwork. Or it can be cast in more layers, and correspondingly, corresponding layers of formwork need to be set up for casting, and the present invention does not make specific limitations on this.

[0060] In this embodiment, the construction steps of the breast wall may further include: after each breast wall section 2 is cast, before the next breast wall section 2 is cast, the excavated second stone 4 is backfilled into the groove of the cast breast wall section 2. Figure 2 The cross-sectional structure of the breast wall shown in the figure is similar to a U-shaped structure. The side close to the open sea can be a semi-upright trapezoidal breast wall structure, and the side close to the port can be a rectangular convex structure. Fenders 25 can be installed for mooring ships. A groove will be left between the breast walls on both sides after the concrete is poured. The groove needs to be filled with stones to raise it as the basis of the breast wall platform 24. In order to improve the construction efficiency, after the pouring of the previous breast wall is completed and before the pouring of the next breast wall, the second stone 4 excavated from the construction site of the next breast wall can be filled into the groove of the previous breast wall, so as to realize the secondary utilization of the stone and save construction materials. The excavated second stone 4 can realize the immediate filling of the groove of the previous breast wall, thereby improving the construction efficiency.

[0061] Specifically, for example, after the breast wall construction on the top of the 35# caisson is completed, the second stone 4 on the top of the 34# caisson can be excavated, and the excavated second stone 4 on the top of the 34# caisson can be filled into the breast wall groove on the top of the 35# caisson. After the breast wall construction on the top of the 34# caisson is completed, the excavated second stone 4 on the top of the 33# caisson can be filled into the breast wall groove on the top of the 34# caisson. Similarly, the filling of the second stone 4 in each breast wall groove can be carried out in turn.

[0062] In this embodiment, the construction steps of the breast wall may further include: pouring the fourth concrete on the second stone 4 backfilled into the groove of the breast wall section 2 to form a breast wall platform 24. After each breast wall section is poured and the second stone 4 is filled in the groove, the fourth concrete may be poured on the second stone 4 to form a concrete slab as the breast wall platform 24, that is, the road surface formed on the breast wall can be used as an inlet and outlet passage for subsequent construction equipment, personnel and vehicles. In other words, the concrete slab formed by pouring the fourth concrete can be used as a flat road surface to form the breast wall platform 24.

[0063] In this embodiment, after the breast wall pouring construction is completed, the land construction equipment such as the excavator can be driven to the breast wall platform 24, and the third stone 5 can be piled on the slope of the embankment core structure formed by the first stone 3, so that the slope can be raised and the slope leveling operation can be performed at the same time. The filling height of the third stone 5 can be higher than the elevation of the breast wall platform 24. Here, the third stone 5 can be used as a cushion stone, and the mass range of the third stone 5 can be 800kg to 1000kg. However, the mass range of the third stone 5 is only one case described in this embodiment. In other embodiments of the present invention, the mass range of the third stone 5 can also be any other range, and the present invention does not specifically limit this.

[0064] Optionally, after the third stone 5 is backfilled and the slope is leveled, a plurality of twist blocks 8 can be installed on the slope formed by the third stone 5. The plurality of twist blocks 8 can cover the entire slope, and the twist blocks 8 can be stacked and installed from the bottom of the slope to the top of the slope. The twist blocks 8 can reduce the impact of waves on the breakwater and increase the wave-blocking performance of the breakwater.

[0065] In this embodiment, before stacking the first stone 3 on the offshore side of the caisson 1, a fourth stone 6 needs to be stacked in the caisson 1, and a fifth concrete is poured on top of the fourth stone 6 to form a cushion layer 7. The sum of the stacking height of the fourth stone 6 and the pouring height of the fifth concrete is consistent with the height of the caisson 1.

[0066] The caisson 1 is usually a hollow box, the inner cavity of which can be partitioned by a steel structure. The fourth stone 6 can be filled in the caisson 1 to increase the weight of the caisson 1 to improve stability, and concrete is poured on the fourth stone 6 to form a cushion layer 7 to facilitate the construction of the breast wall above the caisson 1. The sum of the filling height of the fourth stone 6 and the pouring height of the fifth concrete can be consistent with the height of the caisson 1, that is, the fourth stone 6 and the fifth concrete can completely fill the caisson 1. The filling structure of the caisson 1 formed by this filling method is the fourth stone 6 located at the lower layer and the concrete cushion layer 7 located at the upper layer.

[0067] In addition, the filling structure of the caisson 1 may also be in other forms from bottom to top, such as a three-layer structure, the bottom layer may be the fourth stone 6 layer, the middle layer is a crushed stone layer, and the upper layer is a concrete cushion layer 7.

[0068] Optionally, an installation seam 10 is reserved between two adjacent breast wall sections 2. During pouring, the installation seam 10 reserved between the breast wall sections 2 can provide expansion and contraction space for the thermal expansion and contraction of the breast wall sections 2. The width of the installation seam 10 can be about 10 mm, and the installation seam 10 between the breast wall sections 2 can be aligned with the installation seam 10 reserved between the caissons 1.

[0069] It should be noted that, in the present embodiment, the number of caissons 1 of the breakwater is 35, while in other embodiments, the number of caissons 1 may be any other number. However, regardless of the specific number of caissons 1, the above-mentioned construction method may be used to construct the breast wall, and all schemes using the above-mentioned construction method are within the protection scope of the present invention, and the present invention does not make any specific limitation on this.

[0070] In summary, the construction method of the breast wall of the semi-vertical breakwater of the present invention can form a construction access road above the water level by filling blocks of stone on the top of the caisson and the core structure. The construction access road can be constructed by filling blocks of stone from the root of the embankment to the head of the embankment. After the construction of the construction access road is completed, the second stone is excavated in the reverse direction from the head of the embankment to the root of the embankment to expose the top of the caisson to form the construction site of the breast wall. After each excavation, the pouring construction operation of the breast wall section can be carried out. The direction of excavation and pouring is from the head of the embankment to the root of the embankment. It can be ensured that the pouring of each section of the breast wall can be carried out by using land construction equipment through the construction access road. Therefore, there is no need to use a construction ship for operation, which can save the high cost of renting a construction ship and can greatly reduce the operating cost.

[0071] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A construction method for a breast wall of a semi-vertical breakwater, It is characterized in that include: S1: using onshore equipment to pile a first stone (3) on the top of the caisson (1) from the root of the breakwater toward the head of the breakwater to the seaward side of the caisson (1) to form a core structure, wherein the filling height of the first stone (3) is consistent with the elevation of the caisson (1); S2: using the onshore equipment to pile up a second stone (4) from the root of the breakwater toward the head of the breakwater to the top of the caisson (1) and the top of the core structure of the breakwater to form a construction access road (9), wherein the filling height of the second stone (4) is higher than the highest water level; S3: using the onshore equipment to sequentially excavate the second stone (4) corresponding to the top of each caisson (1) from the head of the breakwater toward the root of the breakwater, with the length of each excavation being consistent with the length of the corresponding caisson (1); S4: After each excavation of the second stone (4), concrete is poured on the top of the corresponding caisson (1) to form a corresponding breast wall section (2), and each breast wall section (2) is poured in sequence from the head of the breakwater toward the root of the breakwater to form the breast wall.

2. The method for constructing a breast wall of a semi-vertical breakwater according to claim 1, It is characterized in that The pouring of the breast wall section (2) comprises: A1: tying steel bars and setting up a first formwork on the top of the corresponding caisson (1); A2: Pour the first concrete into the first formwork to form a first breast wall (21).

3. The method for constructing a breast wall of a semi-vertical breakwater according to claim 2, It is characterized in that The pouring of the breast wall section (2) further comprises: A3: After the first concrete solidifies, the first formwork is removed, and a second formwork is set up above the first breast wall (21); A4: Pour the second concrete into the second formwork to form a second breast wall (22).

4. The method for constructing a breast wall of a semi-vertical breakwater according to claim 3, It is characterized in that The pouring of the breast wall section (2) further comprises: A5: After the second concrete solidifies, the second formwork is removed, and a third formwork is set up above the second breast wall (22); A6: Pour the third concrete into the third formwork to form a third breast wall (23).

5. The method for constructing a breast wall of a semi-vertical breakwater according to claim 1, It is characterized in that After each section of the breast wall section (2) is cast, before the next section of the breast wall section (2) is cast, the excavated second stone (4) is backfilled into the groove of the cast breast wall section (2).

6. The method for constructing a breast wall of a semi-vertical breakwater according to claim 5, It is characterized in that A fourth concrete is poured on top of the second stone (4) backfilled into the groove of the breast wall section (2) to form a breast wall platform (24).

7. The method for constructing a breast wall of a semi-vertical breakwater according to claim 6, It is characterized in that The land equipment is used on the breast wall platform (24) to pile up a third stone (5) on the slope formed by the first stone (3) and to level the slope. The filling height of the third stone (5) is higher than the elevation of the breast wall platform (24).

8. The method for constructing a breast wall of a semi-vertical breakwater according to claim 7, It is characterized in that The twist blocks (8) are installed on the slope surface formed by the third stone (5), and the twist blocks (8) are stacked and installed from the bottom of the slope to the top of the slope.

9. The method for constructing a breast wall of a semi-vertical breakwater according to claim 1, It is characterized in that Before the first stone (3) is stacked, a fourth stone (6) is stacked in the caisson (1), and a fifth concrete is poured on top of the fourth stone (6) to form a cushion layer (7), and the sum of the stacking height of the fourth stone (6) and the pouring height of the fifth concrete is consistent with the height of the caisson (1).

10. A method for constructing a breast wall of a semi-vertical breakwater according to any one of claims 1 to 9, It is characterized in that An installation seam (10) is reserved between two adjacent breast wall sections (2).

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