A reinforcement and protection structure for ancient seawalls

Abstract

A reinforcement and protection structure for an ancient seawall includes sheet piles, cap beams, geotextile, a riprap filling mixture, a tie beam structure, an internal riprap filling mixture, a retaining wall, a revetment, and a large footing. The tie beam structure and the internal riprap filling mixture constitute the main body of the ancient seawall. The retaining wall, revetment, and large footing are located sequentially on the outer side of the ancient seawall main body, situated on the riprap filling mixture. The sheet piles and cap beams are located on the inner side of the ancient seawall main body, with the cap beams at the top of the sheet piles and the geotextile on the outer side of the sheet piles. This invention reduces the amount of excavation work required for ancient seawall restoration, lowers the flood control risk associated with restoration, ensures the appearance of the restored seawall remains unchanged, maintains structural safety, and reduces resource waste.

Description

Technical Field

[0001] This utility model pertains to water conservancy engineering and relates to a reinforcement and protection structure for ancient seawalls. Background Technology

[0002] Currently, the ancient seawalls (stone retaining walls) on the Qiantang River, as cultural relics still serving as a primary means of tide control, suffer from significant material deterioration and aging, with frequent bulging during the flood season. Traditional repair methods require excavation or temporary foundation pit support. However, existing solutions have technical drawbacks: excavation reduces the width of the seawall (levee), increasing its flood risk; and setting up temporary foundation pit support separately for the retaining wall construction significantly increases temporary engineering costs and construction time. Summary of the Invention

[0003] To overcome the shortcomings of existing methods for reinforcing and protecting ancient seawalls, this utility model provides a reinforcement and protection structure for ancient seawalls, which reduces the amount of excavation work required for seawall repair, lowers the risk of flooding during seawall repair, ensures that the appearance of the seawall remains unchanged and the construction structure is safe, and reduces the waste of resources.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A reinforcement and protection structure for an ancient seawall includes sheet piles, cap beams, geotextile, a mixture of filled rubble, a purlin structure, an internal rubble mixture, a seawall wall, a revetment, and a large footing. The purlin structure and the internal rubble mixture constitute the main body of the ancient seawall. The seawall wall, revetment, and large footing are located sequentially on the outer side of the ancient seawall body. The seawall wall, revetment, and large footing are located on the filled rubble mixture. The sheet piles and cap beams are located on the inner side of the ancient seawall body. The cap beams are located on top of the sheet piles, and the geotextile is located on the outer side of the sheet piles.

[0006] Furthermore, the ancient seawall reinforcement and protection structure also includes crushed stone, which is located between the ancient seawall body and the sheet piles.

[0007] Furthermore, the protective structure also includes pine stakes located at the bottom of the ancient seawall.

[0008] Furthermore, the upper part of the stone slab structure is provided with a modern concrete masonry retaining wall, above which is a wave-breaking wall, and the inner side of the wave-breaking wall is the dike top road surface.

[0009] The technical concept of this utility model is as follows: using a multi-purpose semi-reverse construction method, the traditional temporary support system is also used as an anti-sliding pile for the seawall structure. The reinforcement and protection of the ancient seawall is achieved through technologies such as driving precast concrete piles on the inner side, removing the numbered ancient retaining wall stones on the outer side, foundation reinforcement measures, the original numbered stone stone tie-rod masonry technology, and compacting the retaining wall and precast concrete pile with crushed stone.

[0010] The beneficial effects of this utility model are mainly reflected in: reducing the amount of excavation work for the restoration of ancient seawalls, reducing the flood risk of the restoration of ancient seawalls, ensuring that the appearance of the restored ancient seawalls remains unchanged and the construction structure is safe, and reducing the waste of resources. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure for reinforcing and protecting the ancient seawall.

[0012] Figure 2 This is a flowchart of the construction method for reinforcing and protecting ancient seawalls.

[0013] The attached diagram is labeled as follows: 1. Stone strip structure; 2. Internal rubble mixture; 3. Pine piles; 4. Modern concrete masonry retaining wall; 5. Wave wall; 6. Embankment top road surface; 7. Crushed stone; 8. Geotextile; 9. Sheet piles; 10. Cap beam; 11. Pond protection wall; 12. Revetment; 13. Large square foot; 14. Filling rubble mixture. Detailed Implementation

[0014] The present invention will now be further described with reference to the accompanying drawings.

[0015] Reference Figure 1 and Figure 2 A reinforcement and protection structure for an ancient seawall includes sheet piles 9, cap beams 10, geotextile 8, boulders filling material 14, a tie beam structure 1, an inner boulders filling material 2, a seawall wall 11, a retaining wall 12, and a large footing 13. The tie beam structure 1 and the inner boulders filling material 2 form the main body of the ancient seawall. The seawall wall 11, the retaining wall 12, and the large footing 13 are located sequentially on the outer side of the main body of the ancient seawall. The seawall wall 11, the retaining wall 12, and the large footing 13 are located on the boulders filling material 14. The sheet piles 9 and the cap beam 10 are located on the inner side of the main body of the ancient seawall. The cap beam 10 is located on top of the sheet piles 9, and the geotextile 8 is located on the outer side of the sheet piles 9.

[0016] Furthermore, the protective structure also includes crushed stone 7, which is located between the ancient seawall body and the sheet piles.

[0017] The protective structure also includes pine stakes 3, which are located at the bottom of the ancient seawall.

[0018] Furthermore, the upper part of the stone structure 1 is provided with a modern concrete masonry retaining wall 4, and above the modern concrete masonry retaining wall 4 is a wave barrier 5, and the inner side of the wave barrier 5 is the dike top road surface 6.

[0019] The construction method for reinforcing and protecting ancient seawalls in this embodiment includes the following steps:

[0020] Step 1: Create a trench on the road surface section of the inner side of the seawall top;

[0021] Step 2: Drive precast sheet piles 9;

[0022] Step 3: Cast the cap beam 10, which is located on top of the sheet pile 9;

[0023] Step 4: Demolish the modern stone retaining wall on the riverside;

[0024] Step 5: Remove the Dingyou stone structure 1 and the internal mixed stone material 2 of the ancient seawall body layer by layer;

[0025] Step 6: Rebuild the ancient seawall according to the numbering of the stone blocks of the original seawall.

[0026] Step 7: After the pond is built, geotextile 8 is laid. Geotextile 8 is located on the outside of sheet pile 9. The inner side of the strip stone structure 1 is filled with internal block stone mixture 2.

[0027] Step 8: Construct a modern concrete masonry retaining wall 4 on the upper part of the Dingyou stone structure 1;

[0028] Step 9: The wave-breaking wall 5 and the road surface 6 on the top of the dike are restored. The wave-breaking wall 5 is located above the modern concrete masonry retaining wall 4, and the road surface 6 on the top of the dike is located inside the wave-breaking wall 5.

[0029] In step 5, the outer riverside retaining wall 11, retaining wall 12, and large square foot 13 of the ancient seawall are demolished.

[0030] In step 6, check the integrity of the wooden stakes, and replace the missing wooden stakes 3 as needed. Restore the outer river side of the ancient sea dike, excluding the outer river side of the ancient sea dike's protective wall 11, protective platform 12, and large square foot 13. The lower part of the outer river side of the ancient sea dike's protective wall 11, protective platform 12, and large square foot 13 is filled with a mixture of rubble 14.

[0031] In step 7, before filling the internal boulders mixture 2, geotextile 8 is laid on the outside of the sheet piles. The internal boulders mixture 2 is filled within the original outline of the ancient sea dike, and crushed stone 7 is filled between the original outline of the ancient sea dike and the sheet piles.

[0032] In step 8, the construction of the modern concrete masonry retaining wall consists of four parts: the outer surface of the stone masonry and the inner concrete pouring.

[0033] The scheme in this embodiment combines the support structure with the anti-sliding structure of the seawall. The support piles in the middle serve as support, seepage prevention, and anti-sliding piles for the seawall body in the future. Compared with the traditional excavation method or temporary support method, it has the advantages of reducing the risk of flooding in the seawall, saving project costs, and facilitating construction.

[0034] The embodiments described in this specification are merely examples of implementations of the inventive concept and are for illustrative purposes only. The scope of protection of this utility model should not be considered limited to the specific forms described in these embodiments; rather, it extends to equivalent technical means that can be conceived by those skilled in the art based on the inventive concept.

Claims

1. A reinforcement and protection structure for ancient seawalls, characterized in that, The ancient seawall reinforcement and protection structure includes sheet piles, cap beams, geotextile, riprap filling, purlin structure, internal purlin filling, seawall wall, revetment, and large footing. The purlin structure and internal purlin filling constitute the main body of the ancient seawall. The seawall wall, revetment, and large footing are located sequentially on the outer river side of the ancient seawall body. The seawall wall, revetment, and large footing are located on the riprap filling. The sheet piles and cap beams are located on the inner inland side of the ancient seawall body. The cap beams are located on top of the sheet piles, and the geotextile is located on the outer side of the sheet piles.

2. The ancient seawall reinforcement and protection structure as described in claim 1, characterized in that, The ancient seawall reinforcement and protection structure also includes crushed stone, which is located between the ancient seawall body and the sheet piles.

3. A reinforcement and protection structure for ancient seawalls as described in claim 1 or 2, characterized in that, The protective structure also includes pine stakes located at the bottom of the ancient seawall.

4. A reinforcement and protection structure for ancient seawalls as described in claim 1 or 2, characterized in that, The upper part of the Dingyou stone structure is equipped with a modern concrete masonry retaining wall, and above the modern concrete masonry retaining wall is a wave barrier wall. The inner side of the wave barrier wall is the dike top road surface.

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