CN212612255U - Wharf upgrading and transforming structure - Google Patents

Abstract

The invention provides a wharf upgrading and reconstructing structure which comprises a newly-built wharf arranged on one side of an old wharf facing a water area, wherein a plurality of foundation piles are arranged at the bottom of the newly-built wharf, a space is reserved between the old wharf and the newly-built wharf, a plurality of transition plates are arranged in the space, one ends of the transition plates are arranged on the old wharf, the other ends of the transition plates are arranged on the newly-built wharf, a buffer plate is arranged between the rear side surface of each transition plate and the old wharf, a buffer plate is also arranged between the front side surface of each transition plate and the newly-built wharf, and buffer cushions are respectively arranged between. The method improves the construction efficiency of upgrading and transforming the old wharf, shortens the construction period, reduces the construction cost and reduces the operation interruption time of the old wharf caused by upgrading and transforming.

Description

Wharf upgrading and transforming structure

Technical Field

The invention belongs to the technical field of wharf construction, and particularly relates to a wharf upgrading and reforming structure.

Background

Some gravity-type old wharfs which are operated for decades cannot meet the modern operation requirements due to the design standard and mooring capacity requirement of the same year, and particularly under the action of wind, waves, currents, mooring force and ship mooring force of decades, the phenomena of concrete damage, protective layer falling and steel bar exposure occur on a pile foundation and an upper structural part, and the upgrading and reconstruction of the old gravity-type wharfs are the requirements of the times.

The traditional gravity old wharf comprises an old wharf formed by stacking gravity blocks and a riprap arrier below the old wharf, and the traditional gravity old wharf is reformed by the following method: most adopt machines such as hook machine, hydraulic breaker, tipper all break the gravity type square structure of old pier, demolish, carry out the rebuild work of old pier in situ again after transporting away, because of the hardness of gravity type square is great, the number of piles is many, and is more, need a large amount of different kinds of mechanical equipment and manpower to break away the square, transport away, the construction cycle is long, and the instability of gravity type pier square itself has also brought great construction safety risk for demolising the work, there is the great riprap arris body of thickness usually most gravity type pier square below, be difficult to clear away totally also cause great influence for newly-built pier construction, can often lead to the foundation pile can't pierce through remaining original pier below riprap arris body and appear the pile foundation crack, quality accidents such as breakage. The period and the fund required by newly building the wharf are larger, so that the operation time of the upgrade and reconstruction work interruption of the gravity type old wharf is longer.

Disclosure of Invention

The invention aims to provide a wharf upgrading and reconstruction structure, which improves the upgrading and reconstruction construction efficiency of an old wharf, shortens the construction period, reduces the construction cost and reduces the operation interruption time of the old wharf caused by upgrading and reconstruction.

The invention is realized by the following technical scheme:

the utility model provides a structure is reformed transform in pier upgrading, including setting up in old pier towards the newly-built pier in waters one side, newly-built pier bottom is equipped with a plurality of foundation piles, leave the space between old pier and the newly-built pier, be equipped with a plurality of cab apron of crossing in the space, cross cab apron one end and set up on old pier, the other end sets up on newly-built pier, it is equipped with the buffer board to cross between the trailing flank of cab apron and the old pier, also be equipped with the buffer board between its leading flank and the newly-built pier, it is equipped with the blotter respectively to cross between the downside of cab apron and old pier and the newly-.

Further, a gap is reserved between two adjacent transition plates.

Furthermore, the transition plate comprises a prefabricated surface layer and a cast-in-place surface layer arranged on the prefabricated surface layer, and the cast-in-place surface layer is provided with a galvanized angle iron edge covering.

Furthermore, the newly-built wharf comprises a plurality of bearing platforms which are connected in sequence, a protrusion is arranged at one end of each bearing platform, a groove is formed in the other end of each bearing platform, the protrusion and the groove are matched, and a buffer plate is arranged between every two adjacent bearing platforms.

Furthermore, a harbor basin is arranged on one side of the riprap prism body below the old wharf, a riprap revetment is arranged between the riprap prism body and the harbor basin, the riprap revetment comprises an inverted filter layer and a bottom protection block stone layer arranged above the inverted filter layer, and the bottom protection block stone layer is flush with the connection part of the harbor basin.

Further, the foundation pile includes vertical pile and forked pile, vertical pile and forked pile set up a plurality ofly respectively, the same and the one-to-one of quantity of vertical pile and forked pile, a plurality of vertical piles set up along the line direction before the pier of newly-built pier, a plurality of forked piles set up along the line direction before the pier of newly-built pier, wherein the vertical pile closes on old pier setting, and set up in the one side that corresponds the forked pile, and/or, the foundation pile is the PHC stake, the pile toe is equipped with the steel pile shoe, the foundation pile top is equipped with stake core insertion section, stake core insertion section comprises steel reinforcement cage and the stake core concrete of filling the steel reinforcement cage, stake core insertion section inserts in the newly-built pier.

Furthermore, a front rail is arranged on the upper surface of the newly-built wharf, the fork piles are formed by two inclined piles, and the front rail is positioned above the middle of the two inclined piles; and/or a construction groove is dug on the upper surface of the old wharf, a broken stone cushion layer, a rail beam cushion layer and a rail beam are sequentially arranged at the bottom of the construction groove from bottom to top, a rear rail is arranged on the rail beam, a backfill sand layer, a broken stone backfill layer and an interlocking block layer are sequentially arranged between one side of the rail beam, close to the newly-built wharf, and the construction groove from bottom to top, and a backfill sand layer and an interlocking block layer are sequentially arranged on the other side of the rail beam from bottom to top.

Furthermore, a front rail groove is formed in the upper surface of the newly-built wharf, the front rail is arranged in the front rail groove, a plurality of cable grooves which are parallel to each other are formed between the front rail and the front edge of the newly-built wharf, a cable trench is formed in the newly-built wharf, the front rail groove and the cable groove are communicated with the cable trench through a drain pipe, and the lower portion of the cable trench is communicated with the outside of the newly-built wharf through the drain pipe; and/or the track beam is provided with a rear track groove, and the rear track groove is connected with the gravel backfill layer through a drain pipe.

Furthermore, one side, far away from the old wharf, of the newly-built wharf is provided with a plurality of rubber fender boards and a plurality of crawling ladders, the top of the newly-built wharf is provided with a plurality of mooring columns, and one end, close to the wharf face, of the bottom of the newly-built wharf is provided with a plurality of ship leaning members.

Further, the bearing platform comprises a first pier section close to the water area and a second pier section close to the old wharf, and the thickness of the first pier section is larger than that of the first pier section.

Compared with the prior art, the invention has the beneficial effects that: the existing old wharf is used as a foundation to bear the upper load in the operation period, and only the upper part of the front edge of the old wharf is broken, so that the construction period and materials are greatly saved; the newly-built wharf is in lap joint with the old wharf by adopting the transition plate, so that stress damage caused by hard connection between the newly-built wharf and the old wharf is prevented, the buffer plate and the buffer cushion are arranged between the transition plate and the old wharf, and when the newly-built wharf is subjected to the crowding force of a berthing ship, a part of force can be transmitted to the old wharf at the rear part through the transition plate and the buffer cushion, so that on one hand, the cooperativity and consistency between the old wharf and the newly-built wharf are ensured, the displacement generated between the old wharf and the newly-built wharf is reduced or even avoided, and the displacement between different structures is buffered, on the other hand, the bearing capacity of the old wharf is fully exerted, and the stress of the newly-built wharf is effectively relieved, so that the integral bearing capacity of the wharf is increased; the invention utilizes the existing resources and avoids dismantling the old wharf, thereby improving the construction efficiency of upgrading and transforming the old wharf, shortening the construction period, greatly reducing the construction cost and reducing the operation interruption time of the old wharf caused by upgrading and transforming.

Drawings

Fig. 1 is a schematic cross-sectional view of an upgraded and rebuilt structure of a wharf according to the present invention;

fig. 2 is a schematic plan view of the upgraded and rebuilt structure of the wharf of the present invention;

fig. 3 is a schematic elevation view of the upgraded and rebuilt structure of the wharf of the present invention;

fig. 4 is an enlarged schematic view of part a of the upgraded and rebuilt structure of the wharf of the present invention;

fig. 5 is an enlarged schematic view of part B of the upgrading and rebuilding structure of the wharf of the present invention;

fig. 6 is an enlarged schematic view of part C of the upgraded and rebuilt structure of the wharf of the present invention;

FIG. 7 is a pile position distribution diagram of foundation piles of a bearing platform in the wharf upgrading and rebuilding structure of the invention;

FIG. 8 is an installation diagram of a newly built wharf construction support system in the wharf upgrading and rebuilding structure of the present invention;

in the figure, 1-newly built wharf, 11-bearing platform, 111-bulge, 112-groove, 12-front rail, 121-front rail groove, 13-cable groove, 14-cable trench, 15-drain pipe, 16-rubber fender, 17-ladder, 18-bollard, 19-ship-leaning member, 2-foundation pile, 21-vertical pile, 22-forked pile, 3-transition plate, 4-buffer plate, 5-buffer pad, 6-harbor basin, 7-riprap revetment, 71-inverted filter layer, 72-bottom-protecting rock layer, 8-old wharf, 81-gravel cushion layer, 82-rail beam cushion layer, 83-rail beam, 831-rear rail groove, 84-rear rail, 85-backfilled sand layer, 86-gravel backfill layer, 87-interlocking block layer, 88-riprap prism, 91-steel hoop, 92-main beam, 93-secondary beam, 94-distribution beam, 95-pad beam, 96-flat layer and 97-bottom template.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures. Meanwhile, in the description of the present invention, the terms "first", "second", and the like are used only for distinguishing the description, and are not to be construed as indicating or implying relative importance.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships conventionally put in use of products of the present invention, and are only for convenience of description and simplification of description, but do not indicate or imply that the devices or elements referred to must have specific orientations, be constructed in specific orientations, and be operated, and thus, should not be construed as limiting the present invention.

Referring to fig. 1 to 4, fig. 1 is a schematic cross-sectional view of an upgraded and reformed structure of a wharf of the present invention, fig. 2 is a schematic plan view of the upgraded and reformed structure of the wharf of the present invention, fig. 3 is a schematic elevation view of the upgraded and reformed structure of the wharf of the present invention, and fig. 4 is an enlarged schematic view of a portion a of the upgraded and reformed structure of the wharf of the present invention. The utility model provides a structure is reformed transform in pier upgrading, including setting up in old pier 8 towards newly-built pier 1 of waters one side, newly-built pier 1 bottom is equipped with a plurality of foundation piles 2, leave the space between old pier 8 and the newly-built pier 1, be equipped with a plurality of cab apron 3 of crossing in the space, cross 3 one end settings of cab apron on old pier 8, the other end sets up on newly-built pier 1, it is equipped with buffer board 4 to cross between the trailing flank of cab apron 3 and old pier 8, also be equipped with buffer board 4 between its leading flank and the newly-built pier 1, it is equipped with blotter 5 respectively to cross between the downside of cab apron 3 and old pier 8 and the newly-built pier 1.

Newly-built pier 1 sets up in the one side of old pier 8 orientation waters, make full use of current old pier 8 resource, and to a great extent has reduced construction cost, reduces the operation interruption time that old pier 8 leads to because of upgrading transformation. In an embodiment, the newly-built wharf 1 comprises a plurality of bearing platforms 11 connected in sequence, wherein one end of each bearing platform 11 is provided with a protrusion 111, the other end of each bearing platform 11 is provided with a groove 112, the protrusion 111 and the groove 112 are matched, and a buffer plate 4 is arranged between two adjacent bearing platforms 11. During construction, the bulge 111 of one bearing platform 11 is inserted into the groove 112 of the other bearing platform 11, so that the whole bearing platforms 11 are integrated, when a ship berths on one bearing platform 11, the whole newly-built wharf 1 jointly resists horizontal loads such as ship berthing force and mooring force, the whole stability of the newly-built wharf 1 is facilitated, the two adjacent bearing platforms 11 are buffered through the buffer plate 4, the two bearing platforms 11 are prevented from being directly collided and contacted, so that the bearing platforms are prevented from being collided and damaged, and preferably, the thickness of the buffer plate 4 between the two adjacent bearing platforms 11 is 2 cm.

In the space between newly-built pier 1 and old pier 8 along the overlap joint of line direction before the pier there are a plurality of cab apron 3, use cab apron 3 towards newly-built pier 1's one side as the front side, it is the rear side to cross cab apron 3 towards old pier 8's one side, it places buffer board 4 with the displacement between newly-built pier 1 and the old pier 8 to cross between cab apron 3 front and back both sides and newly-built pier 1 and old pier 8, avoid crossing cab apron 3 and newly-built pier 1 or old pier 8 and take place direct collision, cross 3 downside of cab apron simultaneously and avoid taking place direct collision with newly-built pier 1 and old pier 8 through blotter 5 equally, avoid crossing cab apron 3, newly-built pier 1 takes place to collide with the damage with old pier. Preferably, the transition plate 3 is a foam plate, and the cushion pad 5 is a rubber pad. In practical application, when the ship berths, probably can produce the effort of horizontal direction to newly-built pier 1, because newly-built pier 1 can produce the change of position this moment, transmit old pier 8 after the buffer board 4 buffering of the front and back both sides of cab apron 3, consequently this design utilizes current old pier 8 as the upper portion load that the operation period was born as the basis on the one hand, prevents on the one hand because the atress that fixed connection arouses destroys between newly-built pier 1 and the old pier 8, has guaranteed newly-built pier 1 and old pier 8's stability. In one embodiment, the transition plate 3 comprises a prefabricated surface layer and a cast-in-place surface layer arranged on the prefabricated surface layer, and the cast-in-place surface layer is provided with a galvanized angle iron edge. The prefabricated surface layer can be manufactured in a unified mode in a prefabricated field and can be hoisted in a unified mode after being conveyed to a construction site, construction efficiency is improved, the cast-in-place surface layer is directly poured for the construction site, the top elevation of the cast-in-place surface layer can be controlled more accurately, and therefore the top elevation of the transition plate 3 is consistent with the front elevation of the old wharf 8. Preferably, the thickness of the preformed surface layer is 30 cm. In one embodiment, a gap is left between two adjacent transition plates 3. The design is used for drainage, so the width of the gap can be determined according to the actual design requirement, and generally, the width of the gap is designed to be 2cm to meet the drainage requirement of the wharf.

Referring to fig. 7, fig. 7 is a pile position distribution diagram of the foundation piles of the bearing platform in the upgraded and rebuilt structure of the wharf according to the present invention. The bottom of the newly-built wharf 1 is supported by a plurality of foundation piles 2, in one embodiment, each foundation pile 2 comprises a plurality of vertical piles 21 and a plurality of forked piles 22, the number of the vertical piles 21 and the number of the forked piles 22 are the same and are in one-to-one correspondence, the plurality of vertical piles 21 are arranged along the wharf front line direction of the newly-built wharf 1, the plurality of forked piles 22 are arranged along the wharf front line direction of the newly-built wharf 1, wherein the vertical piles 21 are arranged close to the old wharf 8 and are arranged on one side of the corresponding forked piles 22; the forked pile 22 is arranged close to the water area, and the forked pile 22 and the straight pile 21 are staggered, so that the forked pile 22 and the straight pile 21 can reach the same bearing stratum without influence. The arrangement of the forked piles 22 on the basis of meeting the horizontal stress of the newly-built wharf 1 and on the premise of avoiding the collision of the bottom of a ship well plays a role of a tension and compression rod, because when sea surface storms are large, a moored ship only generates large mooring force and mooring force to the newly-built wharf 1, the mooring force is pulling force, the direction is outward, the mooring force is pushing force, the direction is inward, after a long time, the pulling force or the pushing force influences the stability of the newly-built wharf 1, the forked piles 22 are composed of two oblique piles, the bottom of one oblique pile inclines outward, namely the bottom of the oblique pile is arranged towards the water area, the bottom of one oblique pile inclines inward, namely the bottom of the oblique pile is arranged towards the land, when the ship has pulling force to the newly-built wharf 1, the oblique pile with the bottom inclining outward is equivalent to the supporting force in the horizontal direction for the newly-built wharf 1, when the ship has pushing force to the newly-built wharf 1, the batter piles with the inward inclined bottoms are equivalent to a supporting force for the newly-built wharf 1 in the horizontal direction, so that the stability of ship berthing is ensured, and the stability of the newly-built wharf 1 is improved; meanwhile, a plurality of vertical piles 21 arranged close to the old wharf 8 play a good role in supporting the newly-built wharf 1. Therefore, the vertical piles 21 and the fork piles 22 are used as pile foundations, so that horizontal loads such as mooring force and berthing force of ships can be well resisted, the stability of the newly-built wharf 1 is ensured, and the normal work of the modified wharf is further ensured. Further, the bottom of each bearing platform 11 is provided with eleven vertical piles 21 and eleven forked piles 22. In an embodiment the platform 11 comprises a first pier segment adjacent the body of water and a second pier segment adjacent the old quay 8, the first pier segment having a greater thickness than the second pier segment. The forked piles 22 are arranged at the bottom of the first pier section, the straight piles 21 are arranged at the bottom of the second pier section, and the horizontal loads such as mooring force and mooring force borne by the second pier section in the operation stage are small, so that the thickness of the second pier section is smaller than that of the first pier section, preferably, the thickness of the first pier section is 1.9m, the thickness of the second pier section is 1.6m, the thickness of the second pier section is smaller than that of the first pier section by 30cm, and the engineering quantity and the material consumption of the newly-built wharf 1 are reduced.

The foundation pile 2 is a PHC pile, a steel pile shoe is arranged at the pile tip of the foundation pile 2, a pile core insertion section is arranged at the pile top of the foundation pile 2 and consists of a steel reinforcement cage and pile core concrete filled in the steel reinforcement cage, and the pile core insertion section is inserted into the newly-built wharf 1. The length of the steel pile shoe is determined by the thickness of the bearing layer, the concrete section of the foundation pile 2 stays in a sand layer or a clay layer and other relatively soft soil layers, the steel pile shoe stays in a strong weathering rock layer or a hard clay layer and other hard soil layers, the penetration depth of the foundation pile 2 is enough, the pulling resistance and the compression resistance bearing capacity meet the requirements, the cross-shaped pile shoe embedded in the steel pile shoe can enhance the penetrating capacity of the foundation pile 2, the total hammering number is not too much, and the construction quality of the foundation pile 2 is ensured. The foundation pile 2 is inserted into the bearing platform 11 through the pile core insertion section, preferably with an insertion distance of 1.2m, and the foundation pile 2 and the bearing platform 11 are rigidly connected through the pile core insertion section to jointly bear external loads.

Further, a harbor basin 6 is arranged on one side of the riprap prism 88 below the old wharf 8, a riprap revetment 7 is arranged between the riprap prism 88 and the harbor basin 6, the riprap revetment comprises a reversed filtering layer 71 and a bottom protection block stone layer 72 arranged above the reversed filtering layer 71, and the connection part of the bottom protection block stone layer 72 and the harbor basin 6 is flush. The dredging depth of the harbor basin 6 is determined by the draft of the berthing ship of the wharf, and the slope rate of the side slope of the harbor basin 6 is 1: 2. The riprap revetment 7 is to maintain the integrity of the bank slope and to maintain the safety and foundation stability of the old quay 8. In one embodiment, the thickness of the inverted filter layer 71 is 30cm, the thickness of the bottom protection block stone layer 72 is 90cm, the inverted filter layer 71 is formed by filling crushed stones with the diameter of 30 mm-150 mm, and the bottom protection block stone layer 72 is formed by filling a single block of the crushed stones with the weight of 200-300 kg.

Referring to fig. 5 and fig. 6 in combination, fig. 5 is an enlarged schematic view of a part B of the dock upgrading and rebuilding structure of the present invention, and fig. 6 is an enlarged schematic view of a part C of the dock upgrading and rebuilding structure of the present invention. Further, a front rail 12 is arranged on the upper surface of the newly-built wharf 1, the forked piles 22 are formed by two inclined piles, and the front rail 12 is located above the middle of the two inclined piles; and/or a construction groove is dug on the upper surface of the old wharf 8, a broken stone cushion layer 81, a rail beam cushion layer 82 and a rail beam 83 are sequentially arranged at the bottom of the construction groove from bottom to top, a rear rail 84 is arranged on the rail beam 83, a backfill sand layer 85, a broken stone backfill layer 86 and an interlocking block layer 87 are sequentially arranged between one side of the rail beam 83 close to the newly-built wharf 1 and the construction groove from bottom to top, and a backfill sand layer 85 and an interlocking block layer 87 are sequentially arranged at the other side of the rail beam from bottom to top. During the operational phase, mobile cranes may be mounted on the front rail 12 and the rear rail 84, and when the ship is moored at the dock, the crane may be used for unloading, while the front rail 12 is located at an upper position in between the two batter piles, so that during the operational phase, the load above the front rail 12 is evenly transferred to the two batter piles. Furthermore, a front rail groove 121 is arranged on the upper surface of the newly-built wharf 1, a front rail 12 is arranged in the front rail groove 121, a plurality of cable grooves 13 which are parallel to each other are arranged between the front rail 12 and the front edge of the newly-built wharf 1, a cable trench 14 is arranged in the newly-built wharf 1, the front rail groove 121 and the cable groove 13 are communicated with the cable trench 14 through a drain pipe 15, and the lower part of the cable trench 14 is communicated with the outside of the newly-built wharf 1 through the drain pipe 15; and/or, the track beam 83 is provided with a rear track groove 831, and the rear track groove 831 is connected with the gravel backfill layer 86 through the drain pipe 15. When drainage is needed in rainy season, accumulated water on one side, close to the water area, of the surface of the newly-built wharf 1 is communicated with the cable trench 14 through the front rail groove 121 and the cable trench 13, the accumulated water is discharged into the cable trench 14 and then discharged into the water area below the newly-built wharf 1 through the cable trench 14, the accumulated water on one side, far away from the water area, of the surface of the newly-built wharf 1 is discharged into the water area through a gap between the transition plates 3, and preferably, the newly-built wharf 1 gradually inclines downwards from the middle part to the front. The rear track 84 area on the old quay 8 is connected to the gravel backfill 86 through the rear track grooves 831, discharging water into the gravel backfill 86 and the backfill sand 85. Preferably, the drainage pipe 15 is an UPVC pipe, the drainage pipe 15 communicating the front rail groove 121 and the cable trench 14 is a first drainage pipe 15, the drainage pipe 15 communicating the cable trench 13 and the cable trench 14 is a second drainage pipe 15, the drainage pipe 15 communicating the cable trench 14 with the outside is a third drainage pipe 15, the drainage pipe 15 communicating the rear rail groove 831 with the gravel backfill layer 86 is a fourth drainage pipe 15, and the first drainage pipe 15, the second drainage pipe 15, the third drainage pipe 15 and the fourth drainage pipe 15 are all provided in plurality and are respectively arranged at equal intervals along the line direction in front of the wharf. Furthermore, one side of the newly-built wharf 1, which is far away from the old wharf 8, is provided with a plurality of rubber fenders 16 and a plurality of ladder stands 17, the top of the newly-built wharf 1 is provided with a plurality of mooring columns 18, and one end of the bottom of the newly-built wharf 1, which is close to the wharf face, is provided with a plurality of mooring members 19. The rubber fender 16 plays a role of buffering the impact force of the newly-built wharf 1 when the ship is berthed.

The construction process of the wharf upgrading and reforming structure comprises the following steps:

removing all sundries on the upper surface of the old wharf 8, dismantling affiliated facilities such as a bollard 18, a rubber fender 16 and a ladder stand 17 on the old wharf 8, adopting a hydraulic breaking hammer to break concrete blocks on the upper part of the front edge of the old wharf 8, and after the breaking is finished, adopting concrete to level, ensuring the flatness of the front edge of the old wharf 8 and enabling the front edge of the old wharf 8 to form an L-shaped structure.

The design requirement is preset, namely the draft of the berthing ship after the dock is upgraded and transformed, and the dredging depth of the harbour 6 is determined by the draft of the berthing ship. Before dredging construction of a harbor basin 6 is carried out, a surface layer settlement observation point and a deep layer displacement observation hole are arranged on an old wharf 8 so as to observe displacement of the old wharf 8 in subsequent pile sinking construction, the surface layer settlement observation point can be arranged at a joint of a gravity type square block of the old wharf 8 and back backfill soil, a surface layer settlement observation point is arranged every 30m, the deep layer displacement observation hole can be arranged at the middle position of a vertical surface of the old wharf 8 along the water area to the land direction, the depth of the deep layer displacement observation hole is 2m below a riprap prism 88 below the old wharf 8, and a deep layer displacement observation point is arranged in a depth range according to 0.5m in deep layer displacement observation. The stability of the old quay 8 structure is monitored daily during dredging. Because the riprap prism 88 below the old wharf 8 is partially removed by the dredging operation, the horizontal displacement of the old wharf 8 in the dredging operation process should be monitored, so as to prevent the old wharf 8 from being displaced too much in the pile sinking construction process of the foundation pile 2 due to the excessive digging and moving of the riprap prism 88 below the old wharf 8 by the dredging operation, and the influence on the stability of the structure.

Pile sinking construction is carried out at a set position of the newly-built wharf 1, and the pile sinking construction of the foundation piles 2 adopts dual hammer retracting standards of penetration and pile tip elevation. Before pile sinking construction, test pile driving is needed, pile foundation design parameters such as driving performance, penetration depth, penetration degree, pile tip elevation, single pile bearing capacity and the like are verified by combining geological conditions, and necessary adjustment and optimization are carried out in the later period; testing whether the performance condition of the pile driving ship set, the pile hammer type selection, the pile sinking hammer core jump height, the existing designed pile tip elevation and the hammer withdrawal standard can meet the construction requirements or not; collecting and arranging construction pile driving technological parameters. Because the pile ship is limited in driving range, pile driving construction is carried out according to the pile driving sequence from land side to water area side, firstly, a straight pile 21 is driven, and then, a row of inclined piles in the middle and a row of inclined piles close to the water area are driven. High strain detection and low strain detection should be carried out in pile sinking operation to whether the bearing capacity of foundation pile 2 satisfies the design requirement after detecting pile sinking operation and whether the complete performance of pile body reaches the state of normal use, after accomplishing pile sinking operation, cut off the pile section that 2 pile bolck elevations of foundation pile exceed predetermined design height value, make 2 pile bolck elevations of foundation pile satisfy design height value. Should cut the foundation pile 2 and carry out the pile clamping operation after the operation, to adjacent foundation pile 2 and link into an organic whole with the I-steel, prevent that foundation pile 2 that pile sinking has finished from leading to the off normal of foundation pile 2 horizontal direction, rupture even falling under the external load effect such as stormy waves, construction ship collision or follow-up riprap operation under.

And carrying out bank protection construction, and filling the inverted filter layer 7111 and the bottom protection block stones 12 in a layered manner, wherein the thickness of the inverted filter layer 7111 is 30cm, the thickness of the bottom protection block stones 12 is 90cm, the inverted filter layer 7111 can adopt broken stones with the diameter of 30-150 mm, and the bottom protection block stones adopt single stones with the weight of 200-300 kg/block. And carrying out grid division on the construction surface according to the bottom protection block stones 12, carrying out stone throwing operation one by one, and measuring the height of the stone throwing surface at any time in the stone throwing operation process to prevent the situation that the design line is exceeded, so that the water depth does not meet the design requirement to cause the ship to be stranded in the operation period.

Referring to fig. 8, fig. 8 is a diagram illustrating an installation of a newly constructed wharf construction support system in the wharf upgrading and rebuilding structure according to the present invention. Before the construction of the newly-built wharf 1 is carried out, the I-steel of the pile clamping structure in the step S3 is removed. Then the steel hoop 91 is adopted to clamp the foundation pile 2, the steel hoop 91 is used as a support, a support system with different layers is placed on the steel hoop 91, the support system comprises a main beam 92, a secondary beam 93, a distribution beam 94, a pad beam 95, a flat layer 96 and a bottom template 97, if the position of the fork pile 22 corresponds to the construction of a first abutment, the main beam 92, the secondary beam 93, the distribution beam 94 and the bottom template 97 are placed on the steel hoop 91 of the fork pile 22, the position of the straight pile 21 corresponds to the construction of a second abutment, the thickness of the second abutment is smaller than about 30cm of that of the first abutment, and the main beam 92, the secondary beam 93, the distribution beam 94, the pad beam 95, the flat layer 96 and the bottom template 97 are placed on the steel hoop 91 of the vertical pile 21. Then hoisting a prefabricated ship-leaning component 19, temporarily supporting the ship-leaning component 19 through section steel of a support system, installing a side template of the newly-built wharf 1 on a bottom template 97, installing a template of a cable trench 14 in the side template, embedding embedded parts of a ship-tying column 18, a drain pipe 15, a cable trough 13 and a front rail 12, then pouring concrete in the side template, adopting layered pouring for a bearing platform 11, wherein the pouring thickness of each layer is not more than 50cm, the pouring thickness of the uppermost layer is 30cm, fibers are added in the pouring concrete of the uppermost layer to enhance the anti-cracking performance, and the ship-leaning component 19 is integrally poured with the newly-built wharf 1 through reserved anchor bars on the upper part of the ship-leaning component. Finally, the rubber fender 16, the ladder stand 17, the front rail 12, the bollard 18 and other auxiliary facilities are installed. And (3) after the newly-built wharf 1 reaches the preset strength, removing the support system and the steel anchor ear 91 on the foundation pile 2. The construction of the rear rail 84 can be carried out synchronously with the construction of the newly-built wharf 1, a construction groove is excavated on the old wharf 8, a gravel cushion layer 81 is firstly constructed in the construction groove, a rail beam cushion layer 82 is of a plain concrete structure and is poured above the gravel cushion layer 81, a rear rail 84 beam 83 is constructed, the rear rail 84 is constructed, backfill sand is adopted to backfill the constructed construction groove, flushing and vibrating rod vibration are adopted to densely backfill the backfill sand to form a backfill sand layer 85, a gravel backfill layer 86 is poured above the backfill sand layer 85 between one side of the rail beam 83, close to the newly-built wharf 1, and the construction groove, then the whole backfill is carried out by adopting a road roller, an interlocking block layer 87 is laid on the rear rail 84 beam 83, the interlocking block layer 87 is composed of a plurality of interlocking blocks, and the upper surface of the interlocking block layer 87 is flush with the upper surface of the old wharf. The strength of the interlocking blocks should meet the requirement of 50MPa, a flat plate tamper is adopted for tamping after the paving is finished, and gap filling sand is scattered between the interlocking blocks.

Then carry out the setting of buffer board 4 and cushion 5, the front edge of old pier 8 and the vertical cross-section of newly-built pier 1's rear side all are the L type, including vertical face and horizontal plane, vertical face at old pier 8 front edge sets up buffer board 4 along the line before the pier, set up buffer board 4 along the line before the pier at the vertical face of newly-built pier 1 rear side equally, on the horizontal plane at old pier 8 front edge and the horizontal plane of newly-built pier 1 rear side, according to crossing cab apron 3's the position that sets up, place cushion 5, then set up the prefabricated surface course of cab apron 3 on cushion 5, the cast-in-place surface course of cab apron 3 is pour on site on prefabricated surface course, cast-in-place surface course adopts galvanized angle iron to bordure.

Compared with the prior art, the invention has the beneficial effects that: the existing old wharf 8 is used as a foundation to bear the upper load in the operation period, and only the upper part of the front edge of the old wharf 8 is broken, so that the construction period and materials are greatly saved; the newly-built wharf 1 and the old wharf 8 are lapped by adopting the transition plate 3, so that the stress damage caused by the hard connection between the newly-built wharf 1 and the old wharf 8 is prevented, and a buffer plate 4 and a buffer cushion 5 are arranged between the transition plate 3 and the old wharf 8, and a buffer plate 4 and a buffer cushion 5 are also arranged between the transition plate 3 and the newly-built wharf 1, when the newly-built wharf 1 is subjected to the extrusion force of a berthing ship, part of force can be transmitted to the old wharf 8 at the rear part through the transition plate 3 and the buffer plate 4, on one hand, the cooperativity and consistency between the old wharf 8 and the newly-built wharf 1 are ensured, the displacement generated between the old wharf 8 and the newly-built wharf 1 is reduced or even avoided, so as to buffer the displacement between different structures, on the other hand, the bearing capacity of the old wharf 8 is fully exerted, the stress of the newly-built wharf 1 is effectively relieved, so that the integral bearing capacity of the wharf is increased, and the stress damage between the newly-built wharf 1 and the old wharf 8 is further avoided; the invention utilizes the existing resources and avoids dismantling the old wharf 8, thereby improving the construction efficiency of upgrading and transforming the old wharf 8, shortening the construction period, greatly reducing the construction cost and reducing the operation interruption time of the old wharf 8 caused by upgrading and transforming.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, so that any simple modification, equivalent change and modification made to the above embodiment according to the technical spirit of the present invention will still fall within the scope of the technical solution of the present invention without departing from the content of the technical solution of the present invention.

Claims (10)

1. The utility model provides a structure is reformed transform in pier upgrading, its characterized in that, including setting up in old pier towards the newly-built pier of waters one side, newly-built pier bottom is equipped with a plurality of foundation piles, leave the space between old pier and the newly-built pier, be equipped with a plurality of cab apron of crossing in the space, cross cab apron one end and set up on old pier, the other end setting is overhead at newly-built yard, cross and be equipped with the buffer board between the trailing flank of cab apron and old pier, also be equipped with the buffer board between its leading flank and the newly-built pier, it is equipped with the blotter respectively to cross between downside and old pier and the newly-built pier of cab apron.

2. The dock upgrade retrofit structure of claim 1, wherein a gap is left between two adjacent transition plates.

3. The wharf upgrading and rebuilding structure of claim 1, wherein the transition plate comprises a prefabricated surface layer and a cast-in-place surface layer arranged on the prefabricated surface layer, and the cast-in-place surface layer is provided with a galvanized angle iron edge.

4. The wharf upgrading and reconstruction structure of claim 1, wherein the newly-built wharf comprises a plurality of bearing platforms connected in sequence, one end of each bearing platform is provided with a protrusion, the other end of each bearing platform is provided with a groove, the protrusions and the grooves are matched, and a buffer plate is arranged between every two adjacent bearing platforms.

5. The wharf upgrading and reconstruction structure of claim 1, wherein a harbor basin is arranged on one side of the riprap arris body below the old wharf, a riprap revetment is arranged between the riprap arris body and the harbor basin, the riprap revetment comprises an inverted filter layer and a bottom protection blockstone layer arranged above the inverted filter layer, and the bottom protection blockstone layer is flush with the connection part of the harbor basin.

6. The wharf upgrading and reconstruction structure of claim 1, wherein the foundation piles comprise vertical piles and fork piles, the vertical piles and the fork piles are respectively arranged in a plurality, the vertical piles correspond to the fork piles in the same number in a one-to-one manner, the vertical piles are arranged along the direction of the line in front of the newly-built wharf, the fork piles are arranged along the direction of the line in front of the newly-built wharf, the vertical piles are arranged close to the old wharf and are arranged on one side of the corresponding fork piles, and/or the foundation piles are PHC piles, pile tips of the foundation piles are provided with steel pile shoes, pile tops of the foundation piles are provided with pile core insertion sections, the pile core insertion sections are composed of steel reinforcement cages and pile core concrete filled with the steel reinforcement cages, and the pile core insertion sections are inserted into the newly-built wharf.

7. The wharf upgrading and reconstruction structure of claim 1, wherein a front rail is arranged on the upper surface of the newly-built wharf, the fork piles are composed of two inclined piles, and the front rail is located at an upper position between the two inclined piles; and/or, dig on the old wharf upper surface and be equipped with the construction groove, construction groove bottom is by supreme rubble bed course, track roof beam bed course and the track roof beam of being equipped with in proper order down, be equipped with the back track on the track roof beam, the track roof beam is close to between one side of newly-built pier and the construction groove by supreme backfill sand bed, rubble backfill layer and the interlocking piece layer of being equipped with in proper order down, and its opposite side is by supreme backfill sand bed and the interlocking piece layer of being equipped with in proper order down.

8. The wharf upgrading and reconstruction structure of claim 7, wherein a front rail groove is formed in the upper surface of the newly-built wharf, the front rail is arranged in the front rail groove, a plurality of cable grooves which are parallel to each other are formed between the front rail and the front edge of the newly-built wharf, a cable trench is formed in the newly-built wharf, the front rail groove and the cable groove are communicated with the cable trench through a drain pipe, and the lower portion of the cable trench is communicated with the outside of the newly-built wharf through a drain pipe; and/or a rear track groove is arranged on the track beam and is connected with the gravel backfill layer through a drain pipe.

9. The dock upgrading and rebuilding structure of claim 1 wherein a plurality of rubber fenders and ladders are provided on a side of the newly built dock remote from the old dock, a plurality of mooring posts are provided on a top of the newly built dock, and a plurality of docking members are provided on a bottom of the newly built dock near a dock face.

10. The dock upgrading and rebuilding structure of claim 4, wherein said cap comprises a first pier segment adjacent to the body of water and a second pier segment adjacent to the old dock, said first pier segment having a thickness greater than the thickness of the first pier segment.

Images