A prefabricated UHPC face structure and construction method for a ship lock water delivery gallery

Abstract

The present invention provides a prefabricated UHPC protective structure for a ship lock water channel and a construction method. The structure comprises: a gallery bottom wall protective structure, located at the bottom wall of the water channel and constructed of cast-in-place UHPC concrete; two gallery side wall protective structures, one located at each side wall of the water channel and composed of multiple prefabricated UHPC side panels; and a gallery top wall protective structure, located at the top wall of the water channel and composed of multiple prefabricated UHPC top panels, which are installed above the two gallery side wall protective structures. Leveraging the durability, high mechanical properties, and excellent impact and abrasion resistance of UHPC materials, the UHPC prefabricated panels are used as the inner surface of the water channel, significantly improving the structural durability of the ship lock water channel. By replacing impact-resistant concrete with UHPC for water channel protection, the volume of the water channel is approximately one-twentieth of that of impact-resistant concrete and the cost is approximately one-fifth of that of impact-resistant concrete.

Description

Technical Field

[0001] The present invention relates to the field of ship lock construction, and in particular to a prefabricated UHPC face armor structure for a ship lock water delivery gallery and a construction method. Background Art

[0002] Inland waterway transportation is a vital component of the modern integrated transportation system, offering advantages such as low investment, large capacity, low costs, and low energy consumption. Locks are key nodes in inland waterway transportation. By injecting or releasing water into the waterway, controlled by gates at both ends, the water level is raised or lowered, enabling ships to overcome significant water level differences along the waterway. This allows ships to safely and smoothly pass through waters previously blocked due to water level differences, significantly expanding the reach of inland waterway transportation and playing a vital role in promoting regional economic development.

[0003] The water corridor plays a vital role in the lock system. When the gate is closed, the water corridor is responsible for regulating the water level difference between the inside and outside of the lock. By precisely controlling the water level changes within the lock, the water flow environment is relatively stable, ensuring that ships can enter and exit the lock smoothly and safely. To ensure the navigation efficiency of the lock, the water flow velocity in the water corridor is relatively high, usually reaching over 15m / s. The water body is turbulent and easily affected by factors such as sand-carrying water scouring and cavitation erosion, causing surface wear, deteriorating the water flow pattern and berthing conditions within the lock chamber, and affecting the navigation efficiency and safety of the lock. Due to the limited cross-sectional size of the water corridor, subsequent inspection and maintenance require suspension of navigation, which is costly. To improve the durability and scour resistance of the water corridor, special scour-resistant and wear-resistant concrete is usually used as the main construction material for the water corridor. However, during construction, the thickness of impact-resistant and wear-resistant concrete reaches more than 1m, and it needs to be cast and formed at the same time as ordinary concrete, which makes construction organization difficult. Impact-resistant and wear-resistant concrete has high requirements for mix design level and concrete production conditions, and large-volume impact-resistant and wear-resistant concrete has high crack resistance requirements. Therefore, a prefabricated UHPC protective structure and construction method for the lock water transfer corridor are proposed to solve the above problems. Summary of the Invention

[0004] The main purpose of the present invention is to provide a prefabricated UHPC face structure and construction method for a ship lock water delivery gallery, so as to solve the problem of difficulty in construction organization of the existing casting method.

[0005] To solve the above technical problems, the technical solution adopted by the present invention is: a prefabricated UHPC face armor structure for a ship lock water delivery gallery and a construction method, comprising:

[0006] The corridor bottom wall protection structure is located at the bottom wall of the water transmission corridor and is a cast-in-place UHPC concrete structure;

[0007] There are two corridor side wall protection structures, which are respectively set on the two side walls of the water transmission corridor. The corridor side wall protection structure is composed of multiple prefabricated UHPC side panels;

[0008] The corridor top wall protection structure is located at the top wall of the water transmission corridor and is composed of multiple prefabricated UHPC top panels. The prefabricated UHPC top panels are erected above the two corridor side wall protection structures;

[0009] A water delivery corridor structure is formed inside the corridor through the combination of the corridor bottom wall protection structure, the corridor side wall protection structure and the corridor top wall protection structure.

[0010] In the preferred embodiment, corresponding grooves and protrusions are respectively provided at the upper and lower ends of the prefabricated UHPC side panels for vertical butt jointing of the prefabricated UHPC side panels. Two groups of connectors are symmetrically provided on the back of the prefabricated UHPC side panels, which are distributed at the upper and lower edges and are used to fix the vertical butt jointing of the prefabricated UHPC side panels. The back of the prefabricated UHPC side panels is also provided with a plurality of anchor bars for combining with cast-in-place concrete. Corresponding transverse sealing butt joint structures are provided on the left and right sides of the prefabricated UHPC side panels for transverse butt jointing of the prefabricated UHPC side panels.

[0011] In the preferred embodiment, the transverse sealing docking structure is a semicircular trough, and a grouting hole communicating with the semicircular trough is provided at the lower portion of one side of the semicircular trough;

[0012] When the two prefabricated UHPC side panels are butt-jointed, the two semicircular troughs form a cylindrical cavity into which grouting material can be injected through the grouting holes.

[0013] In the preferred embodiment, the transverse sealing docking structure includes an inserted docking structure arranged on the side of the prefabricated UHPC side panel. When the two prefabricated UHPC side panels are transversely docked, the two inserted docking structures at the docking point are plugged into each other, and a reinforced sealing cavity is formed between the two, and a reinforced sealing structure is plugged into the reinforced sealing cavity.

[0014] In a preferred embodiment, the insertion docking structure includes a Z-shaped docking portion provided on the side surface of the prefabricated UHPC side panel and a slot adapted to the end of the Z-shaped docking portion;

[0015] The reinforced sealing cavity includes a Z-shaped reinforcement cavity located between the two Z-shaped butt joints at the butt joint. The Z-shaped reinforcement cavity is composed of a reinforcement groove located in the middle and sealing grooves located on both sides of the reinforcement groove. The opposite sides of the two Z-shaped butt joints are further provided with locking grooves connected to the reinforcement grooves. The cross-section of the locking groove and the slot is cross-shaped. The sealing groove is used to fill the sealant.

[0016] The reinforcement sealing structure includes an insert locking rod adapted to the reinforcement groove and the locking groove;

[0017] The insertion locking rod is also provided with an expansion glue injection structure for injecting glue into the two sealing grooves;

[0018] The expansion glue injection structure includes a accommodating cavity arranged in the insertion locking rod and with an open top. A plurality of slurry outlet holes connected to the accommodating cavity are arranged on both side wall surfaces of the insertion locking rod. When the insertion locking rod is inserted into the reinforcement groove and the locking groove, the slurry outlet holes can be connected with the relative sealing grooves. Two slurry storage capsules are symmetrically arranged in the accommodating cavity. The slurry storage capsules store sealant. The two slurry storage capsules are respectively fitted with the slurry outlet holes on both sides, and an easy-to-open folding line is provided on the side close to the slurry outlet hole. The outside of the slurry storage capsule is covered with an extruded rubber layer connected to the inner wall of the accommodating cavity at both ends. An air bag is arranged between the two extruded rubber layers. The two sides of the air bag are connected to the inner wall of the accommodating cavity, and an inflation port is provided on the top of the air bag.

[0019] In the preferred embodiment, the prefabricated UHPC top plate includes a top plate, both ends of which are connected to diagonal braces for being erected on the corridor side wall protective structure, the bottom end of the diagonal brace is provided with a butt joint, and a group of butt joints are provided at the connection, and top anchor bars are provided at the top of the top plate and the diagonal brace.

[0020] In the preferred embodiment, L-shaped butt joints are provided at the joints of adjacent prefabricated UHPC top panels. When adjacent prefabricated UHPC top panels are butt jointed, the two L-shaped butt joints form an inverted U-shaped butt joint. A butt joint connector is installed in the inverted U-shaped butt joint. The bottom of the butt joint connector is provided with a fitting groove that matches the middle protrusion of the inverted U-shaped butt joint. Notches are provided at both edges of the top of the butt joint connector.

[0021] The method includes:

[0022] S1. Complete the prefabrication of prefabricated UHPC side panels and prefabricated UHPC top panels in the factory and transport them to the construction site one after another;

[0023] S2. Cast the concrete base plate and reserve space for the gallery bottom wall protection structure at the top. During the casting process, pre-embed the base plate anchor bars at the casting position of the gallery bottom wall protection structure, and pre-embed the supporting fixings corresponding to the connectors of the bottom prefabricated UHPC side panels at the edges on both sides of the casting position of the gallery bottom wall protection structure.

[0024] S3. Casting the corridor bottom wall protection structure: Cast UHPC concrete at the casting position of the corridor bottom wall protection structure to form the bottom wall protection structure. Use a steel mold to press out a bottom groove that matches the bottom protrusion of the precast UHPC side panel at the joint between the corridor bottom wall protection structure and the precast UHPC side panel. After the casting is completed, perform concrete curing.

[0025] S4. Install the prefabricated UHPC side panels on both sides. First, grind and clean the bottom grooves to ensure assembly accuracy, and place waterproof mortar in the bottom grooves. Then, use lifting equipment to lift the first layer of prefabricated UHPC side panels in sequence. Then, use bolts to connect the corresponding supporting fixtures and connectors. At the same time, when adjacent prefabricated UHPC side panels are butt-jointed, they are connected through a transverse sealed butt joint structure. The rear of each prefabricated UHPC side panel is tightened by tie bars to bear the lateral force during concrete pouring.

[0026] S5. Install conventional formwork for other parts of the warehouse floor, and then pour concrete for this layer. The top elevation of the concrete pouring is lower than the precast UHPC side panels of this layer to facilitate connection with the precast UHPC side panels of the upper layer. After pouring, perform concrete curing.

[0027] S6. Repeat steps S4-S5 to complete all prefabricated UHPC side panels and corresponding concrete pouring work;

[0028] S7. Install the prefabricated UHPC top panels. Grind and clean the grooves on the top of the uppermost prefabricated UHPC side panels to ensure assembly accuracy, and place waterproof mortar in them. Then, use lifting equipment to hoist the UHPC top panels in sequence, and connect the butt joints with the corresponding connectors with bolts. At the same time, install butt joint connectors between adjacent prefabricated UHPC top panels, and inject waterproof mortar into the cutouts.

[0029] S8. Pour the upper layer of concrete. Set the support components for supporting the prefabricated UHPC top plate on the bottom wall of the corridor. After installing the conventional formwork required for the upper layer of concrete, pour this layer of concrete. After the concrete reaches a certain strength, remove the support components and complete the construction of the water supply corridor.

[0030] In the preferred embodiment, before pouring concrete in step S5, a crossbeam is provided between the opposite connectors of the precast UHPC side panels on both sides. The two ends of the crossbeam are connected to the corresponding connectors by bolts to support the lateral force exerted on the precast UHPC side panels during pouring. At the same time, the crossbeam needs to be removed before installing the superstructure.

[0031] In the preferred embodiment, the support assembly includes four supporting uprights arranged in a rectangular shape, the top ends of the supporting uprights are telescopically provided with telescopic uprights, the tops of the four telescopic uprights are provided with a top plate support platform, both sides of the top plate support platform are hinged with diagonal support plate support frames, the external sliding sleeve of the supporting uprights is provided with a lifting seat, both sides of the lifting seat are hinged with multiple push rods whose other ends are hinged to the diagonal support plate support frames, multiple telescopic elastic connecting rods are provided between the lifting seat and the top plate support platform, and a reinforcement frame is further provided under the four supporting uprights, and a lifting hydraulic cylinder with a telescopic end connected to the lifting seat is provided in the reinforcement frame;

[0032] The top of the supporting rod is provided with a cavity for the telescopic rod to extend and retract, and the inner walls on both sides of the cavity are provided with first limiting grooves, and both sides of the bottom of the telescopic rod are provided with first limiting blocks slidably connected to the corresponding first limiting grooves;

[0033] The telescopic elastic connecting rod includes an outer sleeve, in which a telescopic inner tube is telescopically inserted, second limiting grooves are provided on the inner wall surfaces of the outer sleeve on both sides of the opposite sides, and second sliding blocks slidably connected to the corresponding second limiting grooves are provided on both sides of the bottom end of the telescopic inner tube. The bottom end of the outer sleeve and the top end of the telescopic inner tube are both provided with a contact plate, and a telescopic spring is provided between the two contact plates and is sleeved on the outside of the outer sleeve and the telescopic inner tube.

[0034] The lifting seat includes a lifting frame and a lifting platform which are movably mounted on four supporting poles in sequence. A plurality of connecting blocks are arranged between the lifting frame and the lifting platform. The push rod is hinged to the lifting frame. The bottom end of the retractable elastic connecting rod is arranged on the lifting platform.

[0035] The reinforcement frame includes two reinforcement plates symmetrically mounted on four supporting uprights. X-shaped reinforcement pieces are arranged between the four sides of the two reinforcement plates. The lifting hydraulic cylinder is arranged on the reinforcement plate located below and passes through the reinforcement plate located above.

[0036] The present invention provides a prefabricated UHPC face armor structure for a ship lock water conveyance gallery and a construction method. Utilizing the durability, high mechanical properties, and good impact and wear resistance of UHPC materials, UHPC prefabricated panels are used as the inner surface of the water conveyance gallery, thereby greatly improving the structural durability of the ship lock water conveyance gallery. UHPC is used to replace impact-resistant and wear-resistant concrete for water conveyance gallery protection, with a volume of approximately one twentieth of that of impact-resistant and wear-resistant concrete and a cost of approximately one fifth of that of impact-resistant and wear-resistant concrete. Simultaneously, during the construction of the water conveyance gallery, the bottom plate is cast in-situ using UHPC, facilitating construction. The side plates and top plates are made of UHPC prefabricated panels, which can also serve as formwork, reducing the use of steel formwork and eliminating the need for subsequent removal, thereby simplifying the construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The present invention will be further described below with reference to the accompanying drawings and examples:

[0038] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2 This is a schematic diagram of the prefabricated UHPC side panel structure of the present invention;

[0040] Figure 3 Schematic diagram of the groove structure of the present invention;

[0041] Figure 4 Schematic diagram of the structure of the bump of the present invention;

[0042] Figure 5Schematic diagram of a first embodiment of a transverse sealing butt joint structure of the present invention;

[0043] Figure 6 Schematic diagram of the grouting hole of the first embodiment of the transverse sealing docking structure of the present invention;

[0044] Figure 7 This is a structural diagram of a second embodiment of the transverse sealing docking structure of the present invention;

[0045] Figure 8 This invention Figure 7 The connection structure diagram of the inserted docking structure and the reinforced sealing cavity;

[0046] Figure 9 This invention Figure 5 Top view of the structure;

[0047] Figure 10 This is a structural diagram of the connection between the insertion docking structure and the prefabricated UHPC side panels of the present invention;

[0048] Figure 11 This invention Figure 7 Top view of the structure;

[0049] Figure 12 This is a structural diagram of the reinforced sealing structure of the present invention;

[0050] Figure 13 This invention Figure 9 Half-section structure diagram;

[0051] Figure 14 This invention Figure 10 Look at the structural diagram;

[0052] Figure 15 This is a schematic diagram of the prefabricated UHPC top plate structure of the present invention;

[0053] Figure 16 This is a side view of the prefabricated UHPC top plate structure of the present invention;

[0054] Figure 17 This is a schematic diagram of the exploded structure of the L-shaped docking groove and the docking connector of the present invention;

[0055] Figure 18 This is a schematic diagram of the connection structure between the L-shaped docking groove and the docking connector of the present invention;

[0056] Figure 19 This is a top view of the butt connector structure of the present invention;

[0057] Figure 20 This is a schematic diagram of the connection structure of the concrete base plate, base plate anchor bars and support fixings of the present invention;

[0058] Figure 21This is a schematic diagram of the connection structure between the concrete base plate and the corridor bottom wall protective structure of the present invention;

[0059] Figure 22 This is a schematic diagram of a partially enlarged structure of the bottom groove of the present invention;

[0060] Figure 23 This is a schematic diagram of the installation structure of the first layer of prefabricated UHPC side panels of the present invention;

[0061] Figure 24 It is an enlarged schematic diagram of the crossbeam structure of the present invention;

[0062] Figure 25 This is a schematic diagram of the installation structure of the second layer of prefabricated UHPC side panels of the present invention;

[0063] Figure 26 This is a schematic diagram of the installation structure of the prefabricated UHPC top plate of the present invention;

[0064] Figure 27 This is a schematic diagram of the expanded structure of the support assembly of the present invention;

[0065] Figure 28 This is a schematic diagram of the support assembly retraction structure of the present invention;

[0066] Figure 29 It is a structural schematic diagram of the upper half of the support assembly of the present invention;

[0067] Figure 30 It is a structural schematic diagram of the lower half of the support assembly of the present invention;

[0068] Figure 31 It is a half-section schematic diagram of the connection structure between the support pole and the telescopic pole of the present invention;

[0069] Figure 32 This is a schematic diagram of a half-section structure of the telescopic elastic connecting rod of the present invention;

[0070] Figure: precast UHPC side panel 1; connector 3; groove 4; protrusion 5; anchor 6; transverse sealing docking structure 7; semicircular trough 701; grouting hole 702; insertion docking structure 71; Z-shaped docking portion 710; slot 711; spring piece 712; reinforced sealing cavity 72; reinforced groove 720; sealing groove 721; locking groove 722; reinforced sealing structure 73; insertion locking rod 730; accommodating cavity 731; slurry outlet hole 732; slurry storage capsule 733; extruded rubber layer 734; inflatable bag 735; inflation port 736; tapered end 737; precast UHPC top panel 8; top panel 801; diagonal support plate 802; L-shaped docking groove 803; top anchor 9; docking member 10; concrete bottom plate 12; support fixture 13; bottom groove 14; corridor bottom wall protective structure 15; tie rod 16; crossbeam 17; support assembly 18; support upright 180; first limiting groove 1801; telescopic upright 181; first limiting block 1810; top plate support platform 182; lifting seat 183; lifting platform 1830; connecting block 1831; lifting frame 1832; telescopic elastic connecting rod 184; outer sleeve 1840; telescopic inner tube 1841; second limiting groove 1842; second sliding block 1843; telescopic spring 1844; contact plate 1845; diagonal support plate support frame 185; push rod 186; lifting hydraulic cylinder 187; reinforcement frame 188; reinforcement plate 1880; X-shaped reinforcement member 1881; docking connector 19; fitting groove 190; incision 191; bottom plate anchor bar 20. DETAILED DESCRIPTION

[0071] Example 1

[0072] like Figure 1-26 As shown, a prefabricated UHPC face armor structure for a ship lock water delivery gallery and a construction method thereof include:

[0073] The corridor bottom wall protection structure 15 is located at the bottom wall of the water transmission corridor and is a cast-in-place UHPC concrete structure;

[0074] There are two corridor side wall protection structures, which are respectively arranged on the two side wall surfaces of the water transmission corridor. The corridor side wall protection structures are composed of multiple prefabricated UHPC side panels 1;

[0075] The corridor top wall protection structure is located at the top wall of the water conveyance corridor and is composed of a plurality of prefabricated UHPC top plates 8. The prefabricated UHPC top plates 8 are erected above the two corridor side wall protection structures.

[0076] A water delivery corridor structure is formed inside the corridor by combining the corridor bottom wall protection structure 15, the corridor side wall protection structure and the corridor top wall protection structure.

[0077] In the preferred embodiment, corresponding grooves 4 and protrusions 5 are respectively provided at the upper and lower ends of the prefabricated UHPC side panels 1 for vertical docking of the prefabricated UHPC side panels 1. The vertical fit of the upper and lower UHPC side panels 1 can be achieved by docking the grooves 4 and the protrusions 5. In this embodiment, the grooves 4 and the protrusions 5 are both trapezoidal structures.

[0078] Two groups of connectors 3 are symmetrically arranged on the back of the prefabricated UHPC side panel 1 and are distributed at the upper and lower edges. The connectors 3 are preset during the prefabrication process of the prefabricated UHPC side panel 1 and are used to fix the vertical docking of the prefabricated UHPC side panel 1. In this embodiment, the number of connectors 3 in each group is two.

[0079] The back of the prefabricated UHPC side panel 1 is also provided with a plurality of anchor bars 6 for combining with cast-in-place concrete. The anchor bars 6 are distributed on the back of the prefabricated UHPC side panel 1 in an array manner, and like the connecting members 3, are preset during the prefabrication process of the prefabricated UHPC side panel 1.

[0080] It should be noted that, in this embodiment, the connecting member 3 is an L-shaped steel member, a plurality of stiffening plates are provided between the vertical plate and the horizontal plate, and the horizontal plate is provided with holes for bolts to pass through during connection.

[0081] In addition, corresponding transverse sealing butt joint structures 7 are provided on the left and right sides of the prefabricated UHPC side panels 1 for transverse butt joint of the prefabricated UHPC side panels 1 .

[0082] With this design, a plurality of prefabricated UHPC side panels 1 can be assembled to form an integral protective surface on the water side of the water corridor. At the same time, it can be integrated with the cast-in-place structure of the water corridor to avoid falling off. The setting of the anchor bar 6 effectively improves the connection between the two parts. At the same time, during the casting process of the water corridor, it can play the role of an inner mold and reduce the use of templates.

[0083] In the preferred embodiment, a first embodiment of the transverse sealing docking structure 7 is proposed. The transverse sealing docking structure 7 is a semicircular trough 701, and a grouting hole 702 connected to the semicircular trough 701 is provided at the lower part of one side of the semicircular trough 701.

[0084] When the two prefabricated UHPC side panels 1 are butt-jointed, the two semicircular troughs 701 form a cylindrical cavity, into which grouting material can be injected through the grouting holes 702 , thereby achieving connection of the prefabricated UHPC side panels 1 and sealing of the gaps.

[0085] In the preferred embodiment, a second embodiment of the transverse sealing docking structure 7 is proposed, such as Figure 7-14As shown, the transverse sealing docking structure 7 includes an inserted docking structure 71 arranged on the side of the prefabricated UHPC side panel 1. When two prefabricated UHPC side panels 1 are transversely docked, the two inserted docking structures 71 at the docking position are plugged into each other, and a reinforced sealing cavity 72 is formed between the two, and a reinforced sealing structure 73 is plugged into the reinforced sealing cavity 72.

[0086] In this embodiment, the docking stability and sealing effect between the prefabricated UHPC side panels 1 can be effectively improved by inserting the docking structure 71 and inserting the reinforced sealing structure 73 into the reinforced sealing cavity 72.

[0087] In the preferred embodiment, the insertion docking structure 71 includes a Z-shaped docking portion 710 provided on the side of the prefabricated UHPC side panel 1 and a slot 711 adapted to the end of the Z-shaped docking portion 710. The Z-shaped docking portion 710 and the slot 711 are integrally formed with the prefabricated UHPC side panel 1 during the prefabrication process. When the two prefabricated UHPC side panels 1 are docked, the docking of the Z-shaped docking portion 710 and the slot 711 can realize the role of installation guidance and achieve preliminary connection at the same time.

[0088] The reinforced sealing cavity 72 includes a Z-shaped reinforcement cavity located between the two Z-shaped docking portions 710 at the docking position. The Z-shaped reinforcement cavity is composed of a reinforcement groove 720 located in the middle and sealing grooves 721 located on both sides of the reinforcement groove 720. The two sealing grooves 721 are respectively located at the upper and lower ends of both sides of the reinforcement groove 720. Figure 6 As shown, locking grooves 722 communicating with the reinforcement grooves 720 are further provided on opposite sides of the two Z-shaped docking portions 710 . The cross-sections of the locking grooves 722 and the slots 711 are cross-shaped, and the sealing grooves 721 are used to fill with sealant.

[0089] The reinforcement sealing structure 73 includes an insertion locking rod 730 adapted to the reinforcement groove 720 and the locking groove 722. When the insertion locking rod 730 is inserted into the reinforcement groove 720 and the locking groove 722, it can cooperate with the docking of the two Z-shaped docking parts 710 to form a cross fastening structure, completing the connection between the two adjacent prefabricated UHPC side panels 1. Such a design can ensure a stable connection between the two adjacent prefabricated UHPC side panels 1. At the same time, the multi-fold line connection design can effectively improve the sealing of the connection. In addition, by filling the reserved sealing groove 721 with sealant, the sealing bonding effect can be further achieved.

[0090] The insert locking rod 730 is also provided with an expansion glue injection structure for injecting glue into the two sealing grooves 721. The sealant can be set in the insert locking rod 730 in advance without adding corresponding glue injection equipment on site.

[0091] The expansion injection structure includes a accommodating cavity 731 with an open top arranged in the insertion locking rod 730. A plurality of slurry discharge holes 732 connected to the accommodating cavity 731 are arranged on both side wall surfaces of the insertion locking rod 730. When the insertion locking rod 730 is inserted into the reinforcement groove 720 and the locking groove 722, the slurry discharge holes 732 can be connected to the relative sealing groove 721. Two slurry storage capsules 733 are symmetrically arranged in the accommodating cavity 731. The slurry storage capsules 733 store sealant. The two slurry storage capsules 733 are respectively fitted with the slurry discharge holes 732 on both sides, and an easy-to-open folding line is provided on the side close to the slurry discharge hole 732. The outside of the slurry storage capsule 733 is covered with an extruded rubber layer 734 connected to the inner wall of the accommodating cavity 731 at both ends. An inflatable bag 735 is arranged between the two extruded rubber layers 734. The two sides of the inflatable bag 735 are connected to the inner wall of the accommodating cavity 731, and an inflation port 736 is provided on the top of the inflatable bag 735.

[0092] In this embodiment, the sealant may be epoxy resin, and the pulp storage capsule 733 may be made of soft plastic, with a thin aluminum foil attached to the inner wall thereof for retaining the sealant.

[0093] With such a design, when the air bag 735 is inflated, its own expansion can be used to squeeze the pulp storage capsule 733, and at the same time, the easy-open fold line set on it can cause it to crack, so that the sealant inside can be squeezed out and then flow out through the pulp outlet hole 732.

[0094] In the preferred embodiment, spring pieces 712 perpendicular to the sealing groove 721 are provided on the two opposite inner wall surfaces of the reinforcement groove 720, and a tapered end head 737 is provided at the bottom end of the insertion locking rod 730. The tapered end head 737 and the insertion locking rod 730 are integrally formed. One end of the spring piece 712 is fixedly connected to the side wall of the reinforcement groove 720, and the other end is free. The two spring pieces 712 can limit the insertion locking rod 730 to a certain extent, and at the same time, the spacing difference between the two can be sealed. The setting of the tapered end head 737 facilitates the insertion of the insertion locking rod 730.

[0095] It should be noted that when the spring piece 712 is squeezed and expanded, care should be taken not to block the sealing groove 721 .

[0096] In the preferred solution, the method for butting two laterally adjacent prefabricated UHPC side panels 1 is as follows:

[0097] S1. Hoist the prefabricated UHPC side panel 1 to be installed next to the installed prefabricated UHPC side panel 1, align the Z-shaped butt joints 710 of the two prefabricated UHPC side panels 1 with the corresponding slots 711, and then lower the prefabricated UHPC side panel 1 to be installed to the installation position;

[0098] S2. After the prefabricated UHPC side panel 1 to be installed is vertically fixed, the locking rod 730 is inserted into the reinforcement groove 720 and the locking groove 722;

[0099] S3. Use the inflation device to inflate the inflation port 736 of the inflation bag 735 to expand it, and then use the extrusion rubber layers 734 on both sides to squeeze the two pulp storage capsules 733 respectively, so that the pulp storage capsules 733 are cracked from the easy-to-open folding line side, so that the sealant inside it flows from the pulp outlet hole 732 on the side wall of the inserted locking rod 730 into its side and the sealing groove 721.

[0100] It should be noted that, in this embodiment, waterproof mortar needs to be provided at the joints of the transverse sealing joint structures 7 of the upper and lower prefabricated UHPC side panels 1 in order to improve the sealing performance at the joints without the grooves 4 and the protrusions 5 .

[0101] In the preferred embodiment, the prefabricated UHPC top plate 8 includes a top plate 801, both ends of which are connected to diagonal bracing plates 802 for being erected on the corridor side wall protective structure. The top plate 801 and the diagonal bracing plates 802 are cast as one piece, and a docking tenon 11 is provided at the bottom end of the diagonal bracing plates 802, and a group of docking parts 10 are provided at the connection. The docking tenon 11 is used to adapt to the groove 4 at the top of the prefabricated UHPC side plate 1. Top anchor bars 9 are provided at the top of the top plate 801 and the diagonal bracing plates 802. The top anchor bars 9 are arranged in an array to improve the adhesion with the cast-in-place concrete.

[0102] In the preferred embodiment, L-shaped docking grooves 803 are provided at the joints of adjacent prefabricated UHPC top panels 8. When adjacent prefabricated UHPC top panels 8 are docked, the two L-shaped docking grooves 803 form an inverted U-shaped docking groove. A docking connector 19 is installed in the inverted U-shaped docking groove. The shape of the docking connector 19 is adapted to the shape of the prefabricated UHPC top panel 8. The bottom of the docking connector 19 is provided with a fitting groove 190 adapted to the middle protrusion of the inverted U-shaped docking groove. Notches 191 are provided at both edges of the top of the docking connector 19. The notches 191 are used to inject waterproof mortar after the installation is completed. In this embodiment, when the docking connector 19 is installed, its top surface height is parallel to the top surface of the prefabricated UHPC top panel 8.

[0103] Example 2

[0104] Further illustrate with reference to Example 1, Figure 1-26 The structure shown is a construction method for a prefabricated UHPC facing structure for a ship lock water delivery gallery, the method comprising:

[0105] S1. Complete the prefabrication of the prefabricated UHPC side panels 1 and the prefabricated UHPC top panels 8 in the factory and transport them to the construction site one after another.

[0106] S2. Cast the concrete base plate 12 and reserve casting space for the gallery bottom wall protection structure 15 at the top. During the casting process, pre-embed the base plate anchor bars 20 at the casting position of the gallery bottom wall protection structure 15, and pre-embed the supporting fixing parts 13 corresponding to the connecting parts 3 of the lowest prefabricated UHPC side panels 1 at the edges on both sides of the casting position of the gallery bottom wall protection structure 15.

[0107] S3. Cast the corridor bottom wall protection structure 15. At the casting position of the corridor bottom wall protection structure 15, cast UHPC concrete to form the bottom wall protection structure. At the joint between the corridor bottom wall protection structure 15 and the prefabricated UHPC side panel 1, use a steel mold to press out a bottom groove 14 that matches the bottom protrusion 5 of the prefabricated UHPC side panel 1. After the casting is completed, perform concrete curing.

[0108] S4. Install the prefabricated UHPC side panels 1 on both sides. First, polish and clean the bottom groove 14 to ensure assembly accuracy, and place waterproof mortar in the bottom groove 14. Then, use lifting equipment to lift the first layer of prefabricated UHPC side panels 1 in sequence, and then connect the corresponding supporting fixtures 13 with the connecting members 3 with bolts. At the same time, when adjacent prefabricated UHPC side panels 1 are butt-jointed, the connection is completed through the transverse sealing butt joint structure 7. The rear of each prefabricated UHPC side panel 1 is tightened by the tie rod 16 to bear the lateral force during concrete pouring. The transverse sealing butt joint structure 7 can adopt any of the two embodiments described above.

[0109] S5. Install conventional formwork for other parts of the warehouse floor, and then pour concrete for this layer. The top elevation of the concrete pouring is lower than the precast UHPC side panels 1 of this layer to facilitate connection with the precast UHPC side panels 1 of the upper layer. After pouring, perform concrete curing.

[0110] S6. Repeat steps S4-S5 to complete all prefabricated UHPC side panels 1 and the corresponding concrete pouring work. In this embodiment, the prefabricated UHPC side panels 1 are installed in two layers in total.

[0111] S7. Install the prefabricated UHPC top plate 8, polish and clean the groove 4 on the top of the uppermost prefabricated UHPC side plate 1 to ensure assembly accuracy, and place waterproof mortar in it. Then, use lifting equipment to lift the UHPC top plates 8 in sequence, and connect the butt joints 10 to the corresponding connectors 3 with bolts. At the same time, install butt joint connectors 19 between adjacent prefabricated UHPC top plates 8, and inject waterproof mortar into the incision 191.

[0112] S8, pouring the upper layer of concrete. A support assembly 18 for supporting the prefabricated UHPC top plate 8 is set on the corridor bottom wall protective structure 15. After installing the conventional formwork required for the upper layer of concrete, pour this layer of concrete. After the concrete reaches a certain strength, remove the support assembly 18 and complete the water supply corridor construction.

[0113] In the preferred embodiment, before pouring concrete in step S5, a crossbeam 17 is provided between the connectors 3 of the precast UHPC side panels 1 on both sides. The two ends of the crossbeam 17 are connected to the corresponding connectors 3 by bolts. Both ends of the crossbeam 17 are provided with fixing holes for the bolts to pass through, so as to support the lateral force exerted on the precast UHPC side panels 1 during pouring. At the same time, the crossbeam 17 needs to be removed before installing the superstructure.

[0114] In the preferred embodiment, the support assembly 18 includes four support uprights 180 arranged in a rectangular shape, and the top ends of the support uprights 180 are telescopically provided with telescopic uprights 181. The tops of the four telescopic uprights 181 are provided with a top plate support platform 182, so that the top plate support platform 182 can be raised and lowered on the four support uprights 180. Both sides of the top plate support platform 182 are hinged with diagonal support plate support frames 185. The external sliding sleeve of the support uprights 180 is provided with a lifting seat 183. Both sides of the lifting seat 183 are hinged with multiple push rods 186 whose other ends are hinged to the diagonal support plate support frames 185. Multiple telescopic elastic connecting rods 184 are provided between the lifting seat 183 and the top plate support platform 182. In this embodiment, the number of telescopic elastic connecting rods 184 is four and they are arranged in a rectangular shape. A reinforcement frame 188 is also provided below the four support uprights 180, and a lifting hydraulic cylinder 187 with a telescopic end connected to the lifting seat 183 is provided in the reinforcement frame 188.

[0115] During use, the lifting seat 183 can be controlled to rise and fall on the four supporting uprights 180 by telescoping the lifting hydraulic cylinder 187, and then the four telescopic elastic connecting rods 184 can be used to push the top plate support platform 182 to the bottom of the prefabricated UHPC top plate 8, thereby supporting the top plate 801. At the same time, the pushing can be continued to compress the telescopic elastic connecting rods 184, so that the two diagonal support plate supports 185 are opened under the action of the pushing rods 186 until they conflict with the diagonal support plates 802, thereby supporting the diagonal support plates 802. At the same time, with this design, when the lifting seat 183 is lowered, the diagonal support plate supports 185 are first retracted and then the top plate support platform 182 is lowered, thereby supporting the prefabricated UHPC top plate 8 while also facilitating its removal.

[0116] A cavity is provided at the top of the supporting rod 180 for the telescopic rod 181 to be extended and retracted, and first limiting grooves 1801 are provided on the inner walls on both sides of the cavity. First limiting blocks 1810 are provided on both sides of the bottom end of the telescopic rod 181 for sliding connection with the corresponding first limiting grooves 1801. The first limiting blocks 1810 and the first limiting grooves 1801 play the role of telescopic limiting.

[0117] The telescopic elastic connecting rod 184 includes an outer sleeve 1840, in which a telescopic inner tube 1841 is telescopically inserted, and second limiting grooves 1842 are provided on the inner wall surfaces on both sides of the opposite sides of the outer sleeve 1840, and second sliding blocks 1843 that are slidably connected to the corresponding second limiting grooves 1842 are provided on both sides of the bottom end of the telescopic inner tube 1841. The bottom end of the outer sleeve 1840 and the top end of the telescopic inner tube 1841 are provided with a contact plate 1845, and a telescopic spring 1844 is provided between the two contact plates 1845 and is sleeved on the outside of the outer sleeve 1840 and the telescopic inner tube 1841.

[0118] With such a design, after the top plate support platform 182 is pushed to the bottom of the prefabricated UHPC top plate 8, the telescopic spring 1844 can be used to further compress it by utilizing its elasticity, thereby achieving the above-mentioned effect.

[0119] The lifting seat 183 includes a lifting frame 1832 and a lifting platform 1830 that are movably mounted on the four supporting uprights 180 in sequence. A plurality of connecting blocks 1831 are arranged between the lifting frame 1832 and the lifting platform 1830. In this embodiment, there are eight connecting blocks 1831, which are respectively arranged around them. The push rod 186 is hinged to the lifting frame 1832, and the bottom end of the retractable elastic connecting rod 184 is set on the lifting platform 1830.

[0120] The reinforcement frame 188 includes two reinforcement plates 1880 symmetrically mounted on the four supporting poles 180. X-shaped reinforcement members 1881 are arranged between the four sides of the two reinforcement plates 1880. The lifting hydraulic cylinder 187 is arranged on the reinforcement plate 1880 located below and passes through the reinforcement plate 1880 located above. The overall structural strength can be effectively enhanced through the reinforcement plate 1880.

[0121] It should be noted that the support assembly 18 can be moved by providing a pulley at its bottom, or it can be moved by a forklift.

[0122] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions set forth in the claims, including equivalent alternatives to the technical features of the technical solutions set forth in the claims. In other words, equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A prefabricated UHPC face structure for a ship lock water delivery gallery, characterized by: include: The corridor bottom wall protection structure (15) is located at the bottom wall of the water transmission corridor and is a cast-in-place UHPC concrete structure; The corridor side wall protection structure is two in number and is respectively arranged at two side wall surfaces of the water conveyance corridor. The corridor side wall protection structure is composed of a plurality of prefabricated UHPC side panels (1); The corridor top wall protection structure is located at the top wall of the water conveyance corridor and is composed of a plurality of prefabricated UHPC top plates (8). The prefabricated UHPC top plates (8) are erected above the two corridor side wall protection structures; A water delivery corridor structure is formed inside the corridor by combining the corridor bottom wall protection structure (15), the corridor side wall protection structure and the corridor top wall protection structure; The left and right sides of the prefabricated UHPC side panels (1) are provided with corresponding transverse sealing butt joint structures (7); The transverse sealing docking structure (7) includes an insert docking structure (71) provided on the side of the prefabricated UHPC side panel (1). When the two prefabricated UHPC side panels (1) are transversely docked, the two insert docking structures (71) at the docking position are plugged into each other, and a reinforced sealing cavity (72) is formed between the two. The reinforced sealing cavity (72) is plugged into the reinforced sealing structure (73). The prefabricated UHPC top plate (8) includes a top plate (801), both ends of the top plate (801) are connected to diagonal bracing plates (802) for being erected on the corridor side wall protective structure, the bottom end of the diagonal bracing plate (802) is provided with a docking tenon (11), and a group of docking pieces (10) are provided at the connection, and top anchor bars (9) are provided on the top of the top plate (801) and the diagonal bracing plate (802); An L-shaped docking groove (803) is provided at the docking position of adjacent prefabricated UHPC top plates (8). When the adjacent prefabricated UHPC top plates (8) are docked, the two L-shaped docking grooves (803) form an inverted U-shaped docking groove. A docking connector (19) is installed in the inverted U-shaped docking groove. The bottom of the docking connector (19) is provided with a fitting groove (190) adapted to the middle protrusion of the inverted U-shaped docking groove. Notches (191) are provided at both edges of the top of the docking connector (19).

2. The prefabricated UHPC armor structure for a ship lock water delivery gallery according to claim 1, characterized in that: The upper and lower ends of the prefabricated UHPC side panels (1) are respectively provided with corresponding grooves (4) and protrusions (5) for vertically butting the prefabricated UHPC side panels (1); the back of the prefabricated UHPC side panels (1) is symmetrically provided with two groups of connectors (3) distributed at the upper and lower edges for fixing the vertical butt joint of the prefabricated UHPC side panels (1); and the back of the prefabricated UHPC side panels (1) is also provided with a plurality of anchor bars (6) for combining with cast-in-place concrete.

3. The prefabricated UHPC armor structure for a ship lock water delivery gallery according to claim 2, characterized in that: The transverse sealing docking structure (7) is a semicircular trough (701), and a grouting hole (702) communicating with the semicircular trough (701) is provided at the lower portion of one side of the semicircular trough (701); When the two prefabricated UHPC side panels (1) are butt-jointed, the two semicircular trough bodies (701) form a cylindrical cavity into which grouting material can be injected through the grouting holes (702).

4. The prefabricated UHPC armor structure for a ship lock water delivery gallery according to claim 1, characterized in that: The insertion docking structure (71) comprises a Z-shaped docking portion (710) provided on a side surface of the prefabricated UHPC side plate (1) and a slot (711) adapted to an end of the Z-shaped docking portion (710); The reinforced sealing cavity (72) comprises a Z-shaped reinforced cavity located between two Z-shaped butt joints (710) at the butt joint, the Z-shaped reinforced cavity comprising a reinforcing groove (720) located in the middle and sealing grooves (721) located on both sides of the reinforcing groove (720), and locking grooves (722) connected to the reinforcing grooves (720) are further provided on opposite sides of the two Z-shaped butt joints (710), wherein the cross-sections of the locking groove (722) and the slot (711) are cross-shaped, and the sealing groove (721) is used to be filled with sealant; The reinforcement sealing structure (73) includes an insertion locking rod (730) adapted to the reinforcement groove (720) and the locking groove (722); The insertion locking rod (730) is also provided with an expansion glue injection structure for injecting glue into the two sealing grooves (721); The expansion injection structure includes a receiving cavity (731) which is arranged in the insertion locking rod (730) and has an open top. A plurality of pulp outlet holes (732) which are connected to the receiving cavity (731) are arranged on both side walls of the insertion locking rod (730). When the insertion locking rod (730) is inserted into the reinforcement groove (720) and the locking groove (722), the pulp outlet holes (732) can be connected to the corresponding sealing groove (721). Two pulp storage capsules (733) are symmetrically arranged in the receiving cavity (731). The sealant is stored, and the two pulp storage capsules (733) are respectively fitted with the pulp outlet holes (732) on both sides, and an easy-to-open folding line is provided on the side close to the pulp outlet hole (732). The outside of the pulp storage capsule (733) is sheathed with an extruded rubber layer (734) whose two ends are connected to the inner wall of the accommodating cavity (731). An air-filled bag (735) is provided between the two extruded rubber layers (734). The two sides of the air-filled bag (735) are connected to the inner wall of the accommodating cavity (731), and the top of the air-filled bag (735) is provided with an inflation port (736).

5. A construction method using a prefabricated UHPC facing structure for a ship lock water delivery gallery according to any one of claims 2 to 4, characterized in that: The method includes: S1. Complete the prefabrication of the prefabricated UHPC side panels (1) and the prefabricated UHPC top panels (8) in the factory and transport them to the construction site one after another; S2, pouring the concrete bottom plate (12), and reserving a pouring space for the gallery bottom wall protection structure (15) at the top, and at the same time, pre-embedding the bottom plate anchor bars (20) at the pouring position of the gallery bottom wall protection structure (15), and pre-embedding the supporting fixing members (13) corresponding to the connecting members (3) of the bottom prefabricated UHPC side plate (1) at the edges on both sides of the pouring position of the gallery bottom wall protection structure (15); S3, pouring the corridor bottom wall protection structure (15), pouring UHPC concrete at the pouring position of the corridor bottom wall protection structure (15) to form the bottom wall protection structure, and using a steel mold to press out a bottom groove (14) that matches the bottom protrusion (5) of the prefabricated UHPC side plate (1) at the joint between the corridor bottom wall protection structure (15) and the prefabricated UHPC side plate (1), and performing concrete curing after the pouring is completed; S4. Install the prefabricated UHPC side panels (1) on both sides. First, grind and clean the bottom groove (14) to ensure assembly accuracy, and set waterproof mortar in the bottom groove (14). Then, use the lifting equipment to lift the first layer of prefabricated UHPC side panels (1) in sequence, and then connect the corresponding supporting fixings (13) and the connecting members (3) by bolts. At the same time, when the adjacent prefabricated UHPC side panels (1) are docked, the connection is completed by the transverse sealing docking structure (7). The rear of each prefabricated UHPC side panel (1) is tightened by the tie rod (16) to bear the lateral force during concrete pouring; S5, installing conventional formwork for other parts of the warehouse surface of this layer, and then pouring concrete for this layer, with the top surface elevation of the concrete pouring being lower than the prefabricated UHPC side panels (1) of this layer to facilitate connection with the prefabricated UHPC side panels (1) of the upper layer, and performing concrete curing after the pouring is completed; S6. Repeat steps S4-S5 to complete all prefabricated UHPC side panels (1) and corresponding concrete pouring work; S7, installing the prefabricated UHPC top plate (8), grinding and cleaning the groove (4) at the top of the uppermost prefabricated UHPC side plate (1) to ensure assembly accuracy, and setting waterproof mortar therein, then using a lifting device to sequentially hoist the UHPC top plates (8), and connecting the butt joints (10) with the corresponding connectors (3) by bolts, and at the same time installing butt joint connectors (19) between adjacent prefabricated UHPC top plates (8), and injecting waterproof mortar into the cutouts (191); S8, pouring the upper layer of concrete, setting a support assembly (18) for supporting the prefabricated UHPC top plate (8) on the corridor bottom wall protection structure (15), and installing the conventional formwork required for the upper layer of concrete, pouring the concrete layer, and after the concrete has a certain strength, withdrawing the support assembly (18), completing the construction of the water supply corridor.

6. The construction method of a prefabricated UHPC face structure for a ship lock water delivery gallery according to claim 5 is characterized by: Before pouring concrete in step S5, a crossbeam (17) is provided between the connecting pieces (3) on the two sides of the prefabricated UHPC side panels (1) facing each other. Both ends of the crossbeam (17) are connected to the corresponding connecting pieces (3) by bolts to support the lateral force on the prefabricated UHPC side panels (1) during pouring. At the same time, the crossbeam (17) needs to be removed before installing the superstructure.

7. The construction method of a prefabricated UHPC facing structure for a ship lock water delivery gallery according to claim 6, characterized in that: The support assembly (18) includes four support vertical rods (180) arranged in a rectangular shape, the top of the support vertical rod (180) is telescopically provided with a telescopic vertical rod (181), the top of the four telescopic vertical rods (181) is provided with a top plate support platform (182), both sides of the top plate support platform (182) are hinged with an inclined support plate support frame (185), the external sliding sleeve of the support vertical rod (180) is provided with a lifting seat (183), both sides of the lifting seat (183) are hinged with a plurality of push rods (186) whose other ends are hinged to the inclined support plate support frame (185), a plurality of telescopic elastic connecting rods (184) are provided between the lifting seat (183) and the top plate support platform (182), and a reinforcement frame (188) is further provided below the four support vertical rods (180), and a lifting hydraulic cylinder (187) whose telescopic end is connected to the lifting seat (183) is provided in the reinforcement frame (188); A cavity for the telescopic upright rod (181) to be telescoped is provided at the top of the supporting upright rod (180), first limiting grooves (1801) are provided on the inner walls on both sides of the cavity, and first limiting blocks (1810) slidably connected to the corresponding first limiting grooves (1801) are provided on both sides of the bottom end of the telescopic upright rod (181); The telescopic elastic connecting rod (184) includes an outer sleeve (1840), a telescopic inner tube (1841) is telescopically inserted in the outer sleeve (1840), second limiting grooves (1842) are provided on the inner wall surfaces of the two opposite sides of the outer sleeve (1840), and second sliding blocks (1843) are provided on both sides of the bottom end of the telescopic inner tube (1841) and are slidably connected to the corresponding second limiting grooves (1842). The bottom end of the outer sleeve (1840) and the top end of the telescopic inner tube (1841) are both provided with a contact plate (1845), and a telescopic spring (1844) is provided between the two contact plates (1845) and is sleeved on the outside of the outer sleeve (1840) and the telescopic inner tube (1841). The lifting seat (183) includes a lifting frame (1832) and a lifting platform (1830) which are movably mounted on four supporting uprights (180) in sequence. A plurality of connecting blocks (1831) are provided between the lifting frame (1832) and the lifting platform (1830). A push rod (186) is hingedly connected to the lifting frame (1832). The bottom end of the retractable elastic connecting rod (184) is provided on the lifting platform (1830). The reinforcement frame (188) includes two reinforcement plates (1880) symmetrically mounted on four support poles (180), and an X-shaped reinforcement member (1881) is provided between the four sides of the two reinforcement plates (1880). The lifting hydraulic cylinder (187) is provided on the reinforcement plate (1880) located at the bottom and passes through the reinforcement plate (1880) located at the top.

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