A ship lock prefabricated UHPC facing structure and a construction method thereof

Abstract

The application provides a ship lock prefabricated UHPC facing structure and a construction method. The ship lock prefabricated UHPC facing structure is assembled by a plurality of UHPC plate standard parts. The upper and lower ends of the UHPC plate standard parts are respectively provided with corresponding grooves and protrusions, which are used for vertical butt joint of the UHPC plate standard parts. The back surface of the UHPC plate standard part is symmetrically provided with two groups of connecting pieces distributed at the upper and lower edges, which are used for fixing the vertical butt joint of the UHPC plate standard parts. The back surface of the UHPC plate standard part is further provided with a plurality of anchor bars used for combination with cast-in-place concrete. By using the characteristics of high strength and corrosion resistance of UHPC concrete, the UHPC prefabricated plate is used for ship lock vertical concrete protection, which can greatly improve the resistance to ship impact and rubbing capacity and structural durability. In addition, the cost of the UHPC prefabricated plate is at least half of that of the steel plate facing, and the protection area of the UHPC prefabricated plate is larger than that of the steel guardwood protection, and the protection effect is ideal. Meanwhile, during the construction of the ship lock, the UHPC prefabricated plate can be used as a formwork at the same time, thereby reducing the amount of formwork, and the formwork does not need to be removed subsequently, and the construction process is simplified.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ship lock construction, and in particular to a ship lock prefabricated UHPC facing structure and construction method. BACKGROUND

[0002] Inland water transport is an important part of the modern comprehensive transport system, with the unique advantages of low cost, large capacity and small energy consumption. Ship lock is the most important navigation structure to overcome water level difference and ensure the navigation of waterway, and is the key node of China's high-grade waterway. The inland water transport industry in China has achieved vigorous development, and a large number of major ship lock projects have been completed, which has played a crucial role in building China's waterway network.

[0003] However, during the operation of the ship lock, the vertical concrete of the lock head, lock chamber, main navigation wall and other structures on the water side is easily impacted or rubbed by the ship, resulting in surface damage and exposed steel, which seriously affects the durability of the ship lock and brings safety hazards. At present, most of the ship locks are designed with steel fender on the water side, but its protection range is limited, and the connection between the steel fender and the formwork during construction is prone to slurry leakage and other phenomena, affecting the quality of the main structure. At the same time, some ship locks use steel plate facing, which greatly improves the protection range compared to steel fender, but the cost of steel plate is high, and the steel plate is prone to separation from the concrete, which is also prone to corrosion during the operation of the ship lock, affecting the durability.

[0004] In addition, during the pouring of ship lock concrete, formwork needs to be erected around, and the formwork is removed after the poured concrete reaches a certain strength. The formwork has a large amount of use, multiple operation procedures and high cost. At present, the prefabricated assembly technology is developing rapidly in China, such as in the field of bridges and wharfs, which has brought considerable benefits in quality and efficiency, but the ship lock is mainly constructed on site at present, and the prefabricated assembly technology is less used, and the industrialized construction system of ship lock engineering has not been established. Therefore, a ship lock prefabricated UHPC facing structure and construction method is proposed to solve the above problems. SUMMARY

[0005] The main purpose of the present application is to provide a ship lock prefabricated UHPC facing structure and construction method, which solves the problem of vertical concrete being easily impacted or rubbed by the ship, resulting in surface damage and exposed steel, which seriously affects the durability of the ship lock and brings safety hazards.

[0006] To solve the above technical problems, the technical scheme adopted by the present application is: a ship lock prefabricated UHPC facing structure is assembled by a plurality of UHPC plate standard parts, the upper and lower ends of the UHPC plate standard part are respectively provided with corresponding grooves and protrusions for vertical butt joint of the UHPC plate standard part, two groups of connecting pieces symmetrically arranged on the back surface of the UHPC plate standard part are arranged at the upper and lower edges for fixing the vertical butt joint of the UHPC plate standard part, and a plurality of anchor bars for combining with cast-in-place concrete are arranged on the back surface of the UHPC plate standard part.

[0007] In the preferred scheme, the left and right sides of the UHPC plate standard part are provided with corresponding transverse sealing butt joint structures for transverse butt joint of the UHPC plate standard part.

[0008] In the preferred scheme, the transverse sealing butt joint structure is a vertical cut edge arranged at the side edge of the back surface of the UHPC plate standard part, when two UHPC plate standard parts are transversely butted, the two vertical cut edges at the butt joint form a groove for filling waterproof connecting mortar.

[0009] In the preferred scheme, the transverse sealing butt joint structure includes an insertion butt joint structure arranged on the side surface of the UHPC plate standard part, when two UHPC plate standard parts are transversely butted, the two insertion butt joint structures at the butt joint are inserted and a reinforced sealing cavity is formed between them, and a reinforced sealing structure is inserted into the reinforced sealing cavity.

[0010] In the preferred scheme, the insertion butt joint structure includes a Z-shaped butt joint part arranged on the side surface of the UHPC plate standard part and a slot matched with the end of the Z-shaped butt joint part.

[0011] In the preferred scheme, the reinforced sealing cavity includes a Z-shaped reinforced cavity between the two Z-shaped butt joint parts at the butt joint, the Z-shaped reinforced cavity is composed of a reinforcing groove in the middle and sealing grooves on both sides of the reinforcing groove, and the opposite sides of the two Z-shaped butt joint parts are further provided with locking grooves in communication with the reinforcing groove, the cross section of the locking groove and the slot is cross-shaped, and the sealing groove is used to fill sealing glue.

[0012] In the preferred scheme, the reinforced sealing structure includes an insertion locking rod matched with the reinforcing groove and the locking groove;

[0013] The insertion locking rod is further provided with an expansion glue injection structure for injecting glue into the two sealing grooves;

[0014] The expansion glue injection structure comprises a receiving cavity provided in the insertion locking rod and having an open top, a plurality of glue outlet holes are provided on the two side walls of the insertion locking rod and communicated with the receiving cavity, the glue outlet holes are communicated with the opposite sealing grooves when the insertion locking rod is inserted into the reinforcing groove and the locking groove, two glue storage capsules are symmetrically provided in the receiving cavity and store the sealant, the two glue storage capsules are respectively matched with the two glue outlet holes, and an easy-to-break line is provided on the side close to the glue outlet hole, the outer part of the glue storage capsule is sleeved with two extrusion rubber layers connected with the inner wall of the receiving cavity, an air inflation bag is arranged between the two extrusion rubber layers, the two sides of the air inflation bag are connected with the inner wall of the receiving cavity, and an air inflation port is arranged at the top of the air inflation bag.

[0015] In the preferred solution, the opposite two inner walls of the reinforcing groove are respectively provided with a spring plate perpendicular to the sealing groove, and the bottom end of the insertion locking rod is provided with a tapered end.

[0016] In the preferred solution, the butt joint method of the two UHPC plate standard parts adjacent in the transverse direction is as follows:

[0017] S1, hoist the UHPC plate standard part to be installed to the side of the installed UHPC plate standard part, and align the Z-shaped butt joint parts at the butt joint of the two UHPC plate standard parts with the corresponding insertion slots respectively, and then lower the UHPC plate standard part to be installed to the installation position;

[0018] S2, after the vertical fixation of the UHPC plate standard part to be installed is completed, insert the insertion locking rod into the reinforcing groove and the locking groove;

[0019] S3, inflate the air inflation port of the air inflation bag by using the air inflation device, so that the air inflation bag is inflated, and then the two extrusion rubber layers on the two sides of the air inflation bag are used to extrude the two glue storage capsules respectively, so that the glue storage capsules are cracked from the easy-to-break line side, so that the sealant in the glue storage capsules flows into the side of the insertion locking rod and the sealing groove through the glue outlet holes on the side wall of the insertion locking rod.

[0020] The method comprises:

[0021] S1, prefabricate the UHPC plate standard part in the factory and transport it to the construction site;

[0022] S2, pour the ship lock bottom plate, and preset the fixing groove and anchor bolt for inserting the lowermost UHPC plate standard part at the top;

[0023] S3, install the first layer of UHPC plate standard parts, apply waterproof mortar to the part in contact with the ship lock structure before hoisting, and then hoist the UHPC plate standard parts in the transverse direction one by one by using the hoisting equipment, the bottom is connected and fixed by the anchor bolt and the connecting piece, the rear of each UHPC plate standard part is pulled tight by the tie bar, which is mainly used to bear the lateral force during concrete pouring, and the common floor slab in other parts is also installed;

[0024] S4, after the other procedures of the layer warehouse surface are completed, and the warehouse is qualified, the layer concrete is poured, and the top surface elevation of the concrete pouring is lower than the standard piece of the layer UHPC plate, so as to be connected with the upper UHPC plate standard piece;

[0025] S5, after the lower concrete meets the construction requirements, the UHPC plate standard piece of the upper layer is hoisted in sequence, before installation, a layer of waterproof mortar is arranged on the butt joint at the top of the lower UHPC plate standard piece, and the corresponding connecting pieces are fixed by bolts when butting, the rear of each UHPC plate standard piece is pulled tight through the tensioning bar, and the other parts of the general plate are installed, step S4 is repeated, and the layer concrete pouring is completed;

[0026] S6, repeat the arrangement S5 until the whole ship lock construction is completed.

[0027] The application provides a ship lock prefabricated UHPC facing structure and a construction method, by using the characteristics of high strength and corrosion resistance of UHPC concrete, the UHPC prefabricated plate is used for ship lock vertical plane concrete protection, the ship impact and rubbing resistance and structural durability can be greatly improved. In addition, the cost is at least reduced by half compared with the steel plate facing, the protection area is larger than that of the steel guard wood protection, and the protection effect is ideal. At the same time, during the ship lock construction, the UHPC prefabricated plate can be used as a formwork at the same time, the formwork amount is reduced, and the subsequent formwork does not need to be removed, the construction process is simplified, and the application of the prefabricated assembly technology in the ship lock engineering is promoted. BRIEF DESCRIPTION OF DRAWINGS

[0028] The application will be further described below in combination with the drawings and embodiments:

[0029] Figure 1 is the structure diagram of the UHPC plate standard piece of the application;

[0030] Figure 2 is the enlarged view of the A structure in the application Figure 1 ;

[0031] Figure 3 is the enlarged view of the B structure in the application Figure 1 ;

[0032] Figure 4 is the structure diagram of the second embodiment of the transverse sealing butt joint structure of the application;

[0033] Figure 5 is the connection structure diagram of the inserted butt joint structure and the reinforced sealing cavity of the application;

[0034] Figure 6 is the top view structure diagram of the application Figure 5 ;

[0035] Figure 7It is the connecting structure diagram of the plug-in butt joint structure and the UHPC plate standard part of the application;

[0036] Figure 8 It is the reinforcing and sealing structure structure diagram of the application Figure 7 Top view structure diagram;

[0037] Figure 9 It is the reinforcing and sealing structure structure diagram of the application

[0038] Figure 10 It is the connecting structure diagram of the plug-in butt joint structure and the UHPC plate standard part of the application Figure 9 Half cut structure diagram;

[0039] Figure 11 It is the connecting structure diagram of the plug-in butt joint structure and the UHPC plate standard part of the application Figure 10 Front view structure diagram;

[0040] Figure 12 It is the method step S2 schematic diagram of the application

[0041] Figure 13 It is the connecting structure diagram of the plug-in butt joint structure and the UHPC plate standard part of the application Figure 12 C structure enlargement diagram in the middle

[0042] Figure 14 It is the method step S3 schematic diagram of the application

[0043] Figure 15 It is the connecting structure diagram of the plug-in butt joint structure and the UHPC plate standard part of the application Figure 14 D structure enlargement diagram in the middle

[0044] Figure 16 It is the method step S5 schematic diagram of the application

[0045] Figure 17 It is the connecting structure diagram of the plug-in butt joint structure and the UHPC plate standard part of the application Figure 16 E structure enlargement diagram in the middle

[0046] Figure 18 It is the method recess and protrusion butt joint structure diagram of the application

[0047] Figure 19 It is the construction completion structure schematic diagram of the application

[0048] In the figure: UHPC plate standard part 1; anchor bolt 2; connecting part 3; recess 4; protrusion 5; anchor bar 6; transverse sealing butt joint structure 7; plug-in butt joint structure 71; Z-shaped butt joint part 710; insertion slot 711; elastic sheet 712; reinforcing and sealing cavity 72; reinforcing groove 720; sealing groove 721; locking groove 722; reinforcing and sealing structure 73; plug-in locking rod 730; containing cavity 731; grout outlet hole 732; grout storage capsule 733; extruded rubber layer 734; inflatable bag 735; inflation port 736; conical end 737; ship lock floor 8; fixing groove 9; tensile reinforcement 10; waterproof mortar 12. DETAILED DESCRIPTION

[0049] Example 1

[0050] As Figures 1-3 shown, a ship lock prefabricated UHPC facing structure is assembled by a plurality of UHPC plate standard parts 1, the upper and lower ends of the UHPC plate standard part 1 are respectively provided with corresponding grooves 4 and protrusions 5, which are used for vertical butt joint of the UHPC plate standard part 1, and the vertical butt joint of the two UHPC plate standard parts 1 can be achieved through the butt joint of the grooves 4 and the protrusions 5, in this embodiment, the grooves 4 and the protrusions 5 are both trapezoidal structures, the back of the UHPC plate standard part 1 is symmetrically provided with two groups of connecting pieces 3 distributed at the upper and lower edges, the connecting pieces 3 are completed in the prefabrication process of the UHPC plate standard part 1, which is used for fixing the vertical butt joint of the UHPC plate standard part 1, and a plurality of anchor bars 6 for combining with cast-in-place concrete are also provided on the back of the UHPC plate standard part 1, the anchor bars 6 are distributed on the back of the UHPC plate standard part 1 in an array manner, and the anchor bars 6 are also completed in the prefabrication process of the UHPC plate standard part 1 as the connecting pieces 3.

[0051] It should be noted that in this embodiment, the connecting piece 3 is an L-shaped steel piece, a plurality of stiffeners are arranged between the vertical plate and the horizontal plate of the connecting piece 3, and a plurality of holes are arranged on the horizontal plate for the bolts or anchor bolts 2 to pass through when connected.

[0052] In addition, the left and right sides of the UHPC plate standard part 1 are provided with corresponding transverse sealing butt joint structures 7, which are used for transverse butt joint of the UHPC plate standard part 1.

[0053] In this way, a plurality of UHPC plate standard parts 1 can be assembled to form a whole protection surface on the vertical surface of the ship lock on the water side, and at the same time, the UHPC plate standard part 1 can be formed into an integral structure with the cast-in-place structure of the ship lock to avoid falling off, and the anchor bars 6 can effectively improve the connection between the two parts, and can play the role of an inner mold during the cast-in-place process of the ship lock to reduce the amount of formwork used.

[0054] In the preferred scheme, a first embodiment of the transverse sealing butt joint structure 7 is proposed, and the transverse sealing butt joint structure 7 is specifically a vertical cutting edge arranged at the side edge of the back of the UHPC plate standard part 1, when two UHPC plate standard parts 1 are transversely butted, the two vertical cutting edges at the butt joint form a groove, which is used for filling waterproof connecting mortar, so as to realize the connection between the transverse UHPC plate standard parts 1 and the sealing of the gap through the waterproof connecting mortar.

[0055] In the preferred scheme, a second embodiment of the transverse sealing butt joint structure 7 is proposed, as Figures 4-11 shown, the transverse sealing butt joint structure 7 includes an insertion butt joint structure 71 arranged on the side of the UHPC plate standard part 1, when two UHPC plate standard parts 1 are transversely butted, the two insertion butt joint structures 71 at the butt joint are inserted, and a reinforcing sealing cavity 72 is formed between the two insertion butt joint structures 71, and a reinforcing sealing structure 73 is inserted in the reinforcing sealing cavity 72.

[0056] In the embodiment, the design of the insertion butt joint structure 71 and the reinforcement sealing structure 73 inserted into the reinforcement sealing cavity 72 can effectively improve the butt joint stability and sealing effect between the UHPC plate standard parts 1.

[0057] In the preferred embodiment, the insertion butt joint structure 71 includes a Z-shaped butt joint part 710 arranged on the side surface of the UHPC plate standard part 1 and a slot 711 matched with the end of the Z-shaped butt joint part 710. The Z-shaped butt joint part 710 and the slot 711 are integrally formed with the UHPC plate standard part 1 during the prefabrication process of the UHPC plate standard part 1. When the two UHPC plate standard parts 1 are butt jointed, the installation guide function can be realized through the butt joint of the Z-shaped butt joint part 710 and the slot 711, and the preliminary connection can also be realized.

[0058] The reinforcement sealing cavity 72 includes a Z-shaped reinforcement cavity between the two Z-shaped butt joint parts 710 at the butt joint. The Z-shaped reinforcement cavity is composed of a reinforcement slot 720 in the middle and two sealing slots 721 on both sides of the reinforcement slot 720. The two sealing slots 721 are respectively arranged at the upper and lower ends of the reinforcement slot 720. As shown in the figure, the opposite sides of the two Z-shaped butt joint parts 710 are also provided with a locking slot 722 connected with the reinforcement slot 720. The cross section of the locking slot 722 and the slot 711 is cross-shaped, and the sealing slot 721 is used to fill the sealing glue. Figure 6

[0059] The reinforcement sealing structure 73 includes an insertion locking rod 730 matched with the reinforcement slot 720 and the locking slot 722. When the insertion locking rod 730 is inserted into the reinforcement slot 720 and the locking slot 722, a cross-shaped fastening structure can be formed in cooperation with the butt joint of the two Z-shaped butt joint parts 710, and the connection between the two adjacent UHPC plate standard parts 1 is completed. This design can make the connection between the two adjacent UHPC plate standard parts 1 stable, and through the multi-fold line connection design, the sealing property of the connection part can be effectively improved. In addition, by filling the sealing glue into the reserved sealing slot 721, the sealing and bonding effect can be further realized.

[0060] The insertion locking rod 730 is also provided with an expansion glue injection structure for injecting glue into the two sealing slots 721. The sealing glue can be arranged in the insertion locking rod 730 in advance, and there is no need to additionally arrange the corresponding glue injection equipment on site.

[0061] ​The expansion glue injection structure comprises a receiving cavity 731 provided in the insertion locking rod 730 and having an open top, a plurality of glue outlet holes 732 are provided on the two side walls of the insertion locking rod 730 and communicated with the receiving cavity 731, the glue outlet holes 732 are communicated with the opposite sealing grooves 721 when the insertion locking rod 730 is inserted into the reinforcing groove 720 and the locking groove 722, two glue storage capsules 733 are symmetrically provided in the receiving cavity 731 and store the sealant, the two glue storage capsules 733 are respectively matched with the two glue outlet holes 732 on the sides, and an easy-to-break line is provided on the side close to the glue outlet hole 732, the two extrusion rubber layers 734 are provided outside the glue storage capsules 733 and connected with the inner walls of the receiving cavity 731, the inflation bag 735 is provided between the two extrusion rubber layers 734 and connected with the inner walls of the receiving cavity 731 on the two sides, and the inflation port 736 is provided at the top of the inflation bag 735.

[0062] In the embodiment, the sealant can be epoxy resin, and the glue storage capsule 733 can be soft plastic with an aluminum foil attached to the inner wall thereof for storing the sealant.

[0063] In this way, when the inflation bag 735 is inflated, the inflation bag 735 can extrude the glue storage capsule 733, and the glue storage capsule 733 can be broken through the easy-to-break line provided thereon, so that the sealant in the glue storage capsule 733 can be extruded and then flow out through the glue outlet hole 732.

[0064] In the preferred embodiment, the opposite two inner walls of the reinforcing groove 720 are provided with the elastic pieces 712 perpendicular to the sealing grooves 721, the bottom end of the insertion locking rod 730 is provided with a tapered end 737 which is integrally formed with the insertion locking rod 730, one end of the elastic piece 712 is fixedly connected with the side wall of the reinforcing groove 720, and the other end is free, so that the insertion locking rod 730 can be limited and the spacing difference between the insertion locking rod 730 and the reinforcing groove 720 can be closed through the two elastic pieces 712, and the tapered end 737 facilitates the insertion of the insertion locking rod 730.

[0065] It should be noted that the elastic piece 712 should not block the sealing groove 721 when being extruded and stretched.

[0066] In the preferred embodiment, the butt joint method of the two UHPC plate standard parts 1 adjacent in the transverse direction is as follows:

[0067] S1, hoist the UHPC plate standard part 1 to be installed to the side of the installed UHPC plate standard part 1, and align the Z-shaped butt joint part 710 at the butt joint of the two UHPC plate standard parts 1 with the corresponding insertion slot 711, and then lower the UHPC plate standard part 1 to be installed to the installation position;

[0068] S2, after the vertical fixation of the UHPC plate standard part 1 to be installed is completed, insert the locking rod 730 into the reinforcing groove 720 and the locking groove 722;

[0069] S3, inflate the inflation port 736 of the inflation bag 735 by using the inflation device, so that it expands, and then use the two side extrusion rubber layers 734 to extrude the two storage glue capsules 733 respectively, so that the storage glue capsules 733 crack from the easy-to-open folding line side, so that the sealing glue in the inside flows into the side and the sealing groove 721 from the slurry outlet hole 732 of the inserted locking rod 730 side wall.

[0070] Example 2

[0071] Further illustrated in combination with example 1, as shown in the structure, a construction method of a ship lock prefabricated UHPC facing structure, the method comprises: Figures 12-19

[0072] S1, prefabricate the UHPC plate standard part 1 in the factory, and transport it to the construction site;

[0073] S2, pour the ship lock bottom plate 8, and preset the fixing groove 9 and the anchor bolt 2 for inserting the lowermost UHPC plate standard part 1 at the top;

[0074] S3, install the first layer of UHPC plate standard parts 1, apply waterproof mortar to the part in contact with the ship lock structure before lifting, and then lift the UHPC plate standard parts 1 in the transverse direction one by one, the bottom is connected and fixed through the anchor bolt 2 and the connecting piece 3, the back of each UHPC plate standard part 1 is pulled tight through the tie bar 10, which is mainly used to bear the lateral force during concrete pouring, and the common formwork in other parts is also installed;

[0075] S4, after the other procedures in the layer of the warehouse surface are completed and the warehouse is qualified, pour the concrete in this layer, and the top surface of the concrete pouring is about 15 cm lower than the UHPC plate standard part 1 in this layer, so as to connect with the UHPC plate standard part 1 in the upper layer;

[0076] S5, after the lower layer of concrete meets the construction requirements, the UHPC plate standard part 1 in the upper layer is lifted in turn, before installation, a layer of waterproof mortar 12 is arranged on the butt joint at the top of the lower UHPC plate standard part 1, and the connecting pieces 3 corresponding to the upper and lower layers are fixed by bolts during butt joint, the back of each UHPC plate standard part 1 is pulled tight through the tie bar 10, and the common formwork in other parts is also installed, and the step S4 is repeated to complete the concrete pouring in this layer;

[0077] S6, repeat the arrangement S5 until the whole ship lock construction is completed.

[0078] ​The above embodiments are only preferred technical solutions of the present application, and should not be regarded as a limitation of the present application. The protection scope of the present application should be the technical solutions recited in the claims, including equivalent replacement solutions of the technical features recited in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present application.

Claims

1. A precast UHPC facing structure for a ship lock, characterized by A plurality of UHPC plate standard parts (1) are assembled, the upper and lower ends of the UHPC plate standard part (1) are respectively provided with corresponding grooves (4) and protrusions (5) for vertical butt joint of the UHPC plate standard part (1), the back of the UHPC plate standard part (1) is symmetrically provided with two groups of connecting parts (3) distributed at the upper and lower edges for fixing the vertical butt joint of the UHPC plate standard part (1), and the back of the UHPC plate standard part (1) is further provided with a plurality of anchor bars (6) for combination with cast-in-place concrete; The left and right sides of the UHPC plate standard part (1) are provided with corresponding transverse sealing butt joint structures (7) for transverse butt joint of the UHPC plate standard part (1); The transverse sealing butt joint structure (7) comprises an insertion butt joint structure (71) arranged on the side surface of the UHPC plate standard part (1), when two UHPC plate standard parts (1) are transversely butted, the two insertion butt joint structures (71) at the butt joint are inserted, and a reinforcing sealing cavity (72) is formed between the two insertion butt joint structures (71), and a reinforcing sealing structure (73) is inserted in the reinforcing sealing cavity (72); The reinforcing sealing structure (73) comprises an insertion locking rod (730) matched with a reinforcing groove (720) and a locking groove (722); The insertion locking rod (730) is further provided with an expansion glue injection structure for injecting glue into the two sealing grooves (721); The expansion glue injection structure comprises a containing cavity (731) arranged in the insertion locking rod (730) and having an open top, a plurality of slurry outlet holes (732) are arranged on the two side walls of the insertion locking rod (730) and communicated with the containing cavity (731), when the insertion locking rod (730) is inserted into the reinforcing groove (720) and the locking groove (722), the slurry outlet holes (732) are communicated with the opposite sealing grooves (721), two slurry storage capsules (733) are symmetrically arranged in the containing cavity (731) and store sealing glue, the two slurry storage capsules (733) are respectively matched with the slurry outlet holes (732) on the two sides, and an easy-to-break line is arranged on the side close to the slurry outlet hole (732), the slurry storage capsules (733) are externally sleeved with two extrusion rubber layers (734) having two ends connected with the inner wall of the containing cavity (731), a gas-filled bag (735) is arranged between the two extrusion rubber layers (734), the two sides of the gas-filled bag (735) are connected with the inner wall of the containing cavity (731), and a gas inlet (736) is arranged at the top of the gas-filled bag (735).

2. The precast UHPC facing structure for a ship lock according to claim 1, characterized in that: The transverse sealing butt joint structure (7) is a vertical cutting edge arranged at the side edge of the back of the UHPC plate standard part (1), when two UHPC plate standard parts (1) are transversely butted, the two vertical cutting edges at the butt joint form a groove body for filling waterproof connection mortar.

3. The precast UHPC facing structure for a ship lock according to claim 1, characterized in that: The insertion butt joint structure (71) comprises a Z-shaped butt joint part (710) arranged on the side surface of the UHPC plate standard part (1) and a insertion groove (711) matched with the end of the Z-shaped butt joint part (710).

4. The precast UHPC facing structure for a ship lock according to claim 3, characterized in that: The reinforced sealing cavity (72) comprises a Z-shaped reinforcing cavity between two Z-shaped butt joints (710) at the butt joint, and the Z-shaped reinforcing cavity is composed of a reinforcing groove (720) in the middle and sealing grooves (721) on both sides of the reinforcing groove (720). The opposite sides of the two Z-shaped butt joints (710) are further provided with locking grooves (722) in communication with the reinforcing groove (720), and the cross section of the locking groove (722) and the insertion groove (711) is cross-shaped. The sealing groove (721) is used for filling sealing glue.

5. The precast UHPC facing structure for a ship lock according to claim 3, characterized in that: The opposite two inner walls of the reinforcing groove (720) are provided with elastic sheets (712) perpendicular to the sealing groove (721), and the bottom end of the inserted locking rod (730) is provided with a tapered end (737).

6. The precast UHPC lining structure for a ship lock according to claim 3 or 5, characterized in that: The butt joint method of two UHPC plate standard parts (1) adjacent in the transverse direction is as follows: S1, hoist the UHPC plate standard part (1) to be installed to the side of the installed UHPC plate standard part (1), and make the Z-shaped butt joints (710) at the butt joints of the two UHPC plate standard parts (1) respectively align the corresponding insertion grooves (711), and then lower the UHPC plate standard part (1) to be installed to the installation position; S2, after the vertical fixation of the UHPC plate standard part (1) to be installed is completed, the inserted locking rod (730) is inserted into the reinforcing groove (720) and the locking groove (722); S3, inflate the inflation port (736) of the inflation bag (735) by using the inflation device, so that it expands, and then the two side extrusion rubber layers (734) are used to extrude the two slurry storage capsules (733) respectively, so that the slurry storage capsules (733) crack from the easy-to-open folding line side, so that the sealing glue in the slurry storage capsules (733) flows from the slurry outlet hole (732) in the side wall of the inserted locking rod (730) to the side and the sealing groove (721).

7. A method of constructing a precast UHPC facing structure for a ship lock according to any one of claims 1 to 6, characterized in that: The method comprises: S1, prefabricate the UHPC plate standard part (1) in the factory, and transport it to the construction site; S2, pour the ship lock bottom plate (8), and preset the fixing groove (9) and anchor bolt (2) for inserting the lowermost UHPC plate standard part (1) at the top; S3, install the first layer of UHPC plate standard parts (1), and brush waterproof mortar on the part in contact with the ship lock structure before hoisting, and then hoist the UHPC plate standard parts (1) in the transverse direction one by one by using the hoisting equipment, and connect and fix the bottom through the anchor bolt (2) and the connecting piece (3). The rear of each UHPC plate standard part (1) is pulled tight through the tie rod (10), which is mainly used to bear the lateral force during concrete pouring, and the other parts of the ordinary slab are also installed; S4, after the other procedures of the layer of silo surface are completed and the silo is qualified, pour the concrete of the layer, and the top surface elevation of the concrete pouring is lower than the UHPC plate standard part (1) of the layer, so as to connect with the UHPC plate standard part (1) of the upper layer. S5, after the lower layer concrete meets the construction requirements, the upper layer UHPC plate standard part (1) is hoisted in turn, before installation, a layer of waterproof mortar (12) is arranged on the butt joint of the top of the lower layer UHPC plate standard part (1), and the corresponding connecting parts (3) are fixed by bolts when butting, the rear of each UHPC plate standard part (1) is pulled tight through the tie bar (10), and other parts of the common plate are installed, step S4 is repeated, and the concrete pouring of the layer is completed; S6, steps S5 are repeated until the whole ship lock construction is completed.

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