Method for the production of prefabricated passageways for the lock filling corridors

Abstract

The application discloses a production method of a prefabricated corridor of a ship lock water conveying corridor, which comprises the following steps: first, preparing a layer plate A of a water isolation inner wall layer and a layer plate B of a water isolation outer wall layer; then, from inside to outside, preparing a fixed inner wall steel reinforcement cage, the water isolation inner wall layer, a filling layer steel reinforcement cage, the water isolation outer wall layer and an outer wall steel reinforcement cage in sequence; then, pouring the filling layer first; and after the filling layer is solidified, pouring the inner wall UHPC layer and the outer wall UHPC layer simultaneously and integrally. It can be known from the above process that the production method of the prefabricated corridor of the ship lock water conveying corridor, by pouring the filling layer first, enables the water isolation inner wall layer and the water isolation outer wall layer to be relatively fixed, and then the inner wall UHPC layer and the outer wall UHPC layer are poured simultaneously and integrally, so that the efficient preparation of the prefabricated corridor monomer is realized, and the customized production can be carried out according to the design size of different ship lock water conveying corridors.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of ship lock water conveying corridors, in particular to a production method of a prefabricated corridor of a ship lock water conveying corridor. BACKGROUND

[0002] The ship lock water conveying corridor (ship lock corridor) is an important component of a ship lock project, has a complex structure and a large volume, and is a typical special-shaped mass concrete structure. The water conveying corridor is a main facility for completing the filling and draining of the ship lock, and the water flow has a large flow rate and is in a turbulent state.

[0003] The water conveying corridor is subjected to the cyclic action of water pressure for a long time, and under the scouring of high-speed sand-carrying water flow, the concrete surface on the water side is prone to serious erosion, and cavitation is prone to occur in complex working conditions (such as structure mutation sections of the main and branch holes, local damage and unevenness of the corridor, and valve sections), causing superimposed concrete damage at the corresponding positions. The concrete damage of the water conveying corridor will be aggravated by the further action of the high-speed sand-carrying water flow, and the unstable flow state of the water body in the corridor will be continuously generated, thereby deteriorating the water flow conditions in the lock chamber and affecting the stability of the ship, and safety problems will occur. In addition, at the structure joint of the segmented structure, if the concrete density is not enough and the concrete at the water stop connection position is not enough for the water stop embedding engagement, water seepage is easy to occur. In order to solve the above problems, the patent application with application number 202310912353.8 discloses a technical solution, in which prefabricated corridor segments prepared by UHPC concrete are connected and fixed to form a water conveying corridor, thereby solving the above technical problems.

[0004] However, the cost of UHPC concrete is 5-10 times that of ordinary concrete, and if the prefabricated corridor segments are all prepared by UHPC concrete, the construction cost will be high.

[0005] In addition, the water conveying corridor is subjected to water pressure for a long time, resulting in a very high requirement for the corridor wall strength of the water conveying corridor. Therefore, in order to solve the above technical problems, the applicant has submitted a new structure of a prefabricated corridor, and now simultaneously submits a method for producing and preparing the prefabricated corridor. SUMMARY

[0006] The purpose of the present application is to overcome the shortcomings of the prior art, provide a production method of a prefabricated corridor of a ship lock water conveying corridor, pour a filling layer first to relatively fix the water isolation inner wall layer and the water isolation outer wall layer, and then pour the inner wall UHPC layer and the outer wall UHPC layer at one time, thereby realizing efficient preparation of the prefabricated corridor monomer, and the production can be customized according to the design size of different ship lock water conveying corridors.

[0007] The technical solution adopted by the present application is as follows:

[0008] The production method of the prefabricated corridor of the ship lock water conveying corridor comprises the following steps:

[0009] 1) The ppr unit plate with the protruding columns uniformly arranged on the two side end faces is fixed and spliced according to the size of each side corridor wall of the corridor prefabricated unit to be prepared, so that the layer plate A and the layer plate B corresponding to each side corridor wall of the water isolation inner wall layer and the water isolation outer wall layer are prepared;

[0010] 2) Then, the two opposite side end faces of each side layer plate A of the water isolation inner wall layer and the two opposite side end faces of each side layer plate B of the water isolation outer wall layer are respectively fixed with the metal mesh plate;

[0011] 3) A plurality of axially arranged axial ribbons A are uniformly arranged according to the size of the inner wall of the water isolation inner wall layer, and a plurality of annular ribbons A are connected along the length direction of the axial ribbons A, so that the plane surrounded by the annular ribbons A is perpendicular to the axial ribbons A, forming an inner wall steel cage; at this time, the axial ribbons A can be adjusted along one side connected by the annular ribbons A, and the annular ribbons A can be adjusted along the axial ribbons A;

[0012] 4) Each layer plate A of the water isolation inner wall layer is fixed with the corresponding axial ribbons A of the inner wall steel cage, and when fixed, the axial ribbons A connected with the layer plate A are uniformly clamped and fixed in the interval between the adjacent two rows of protruding columns A along the circumference of the corridor prefabricated unit to be prepared, and the annular ribbons A are respectively located in the interval between the adjacent two rows of protruding columns A along the axial direction of the corridor prefabricated unit to be prepared;

[0013] 5) The connecting edges of each adjacent two side layer plates A corresponding to the water isolation inner wall layer are fixed and spliced to form the water isolation inner wall layer;

[0014] 6) Then, a plurality of coaxial annular ribbons C are uniformly fixed on the outer side end face of the water isolation inner wall layer along the axial direction of the corridor prefabricated unit to be prepared, and the annular ribbons C are clamped and fixed in the interval between the adjacent two rows of protruding columns A along the axial direction of the corridor prefabricated unit to be prepared;

[0015] 7) Then, the annular ribbons C are uniformly fixed with the annular ribbons B along the annular direction of the annular ribbons C, the plane surrounded by the annular ribbons B is parallel to the axial direction of the corridor prefabricated unit to be prepared and perpendicular to the corresponding layer plate A of the water isolation inner wall layer contacted, the length direction of the annular ribbons B is parallel to the axial direction of the corridor prefabricated unit to be prepared, and the annular ribbons B are adjusted to be uniformly located in the interval between the adjacent two rows of protruding columns A along the circumference of the corridor prefabricated unit to be prepared; then, a plurality of annular ribbons D are uniformly sleeved on the side edge of the annular ribbons B away from the water isolation inner wall layer along the axial direction of the corridor prefabricated unit to be prepared, so as to form a filling layer steel cage;

[0016] 8) Fix each layer plate B of the water-proof outer wall layer with the corresponding side of the filling layer steel cage, and fix the ring-shaped steel bars D evenly between the adjacent two rows of protruding columns B along the axial direction of the prepared gallery prefabricated monomer, and the ring-shaped steel bars B are evenly located between the adjacent two rows of protruding columns B along the circumferential direction of the prepared gallery prefabricated monomer;

[0017] 9) Seal, splice and fix the connecting edges of the corresponding adjacent two side layer plates B of the water-proof outer wall layer to form the water-proof outer wall layer;

[0018] 10) Fix the multiple parallel arranged axial steel bars B with the corresponding side walls of the water-proof outer wall layer between the adjacent two rows of protruding columns B along the circumferential direction of the prepared gallery prefabricated monomer, and coaxially fix the multiple ring-shaped steel bars E on the axial steel bars B on the outer surface of the water-proof outer wall layer, and the ring-shaped steel bars E are evenly distributed along the axial direction of the prepared gallery prefabricated monomer, and the ring-shaped steel bars E are located between the adjacent two rows of protruding columns B along the axial direction of the prepared gallery prefabricated monomer, thereby forming the outer wall steel cage;

[0019] 11) Fix the connecting steel bars A on the side of the ring-shaped steel bars E away from the side wall of the water-proof outer wall layer, and the connecting steel bars A are perpendicular to the side wall of the water-proof outer wall layer;

[0020] 12) Fix and close the corresponding axial end of the prepared gallery prefabricated monomer between the water-proof inner wall layer 3 and the water-proof outer wall layer by the ring-shaped end template A, and make the ring-shaped steel bars B, the ring-shaped steel bars C and the ring-shaped steel bars D of the filling layer steel cage protrude out of the ring-shaped end template A at the axial end;

[0021] 13) Raise the water-proof inner wall layer and the water-proof outer wall layer together with the inner wall steel cage, the filling layer steel cage and the outer wall steel cage by the lifting device and the support, and make the end of the ring-shaped end template A located at the bottom and fixed by the bottom support to provide sufficient support force, then fill the light-weight concrete into the filling layer between the water-proof inner wall layer and the water-proof outer wall layer from the top, and ensure that the top end of the filling layer steel cage, the top end of the water-proof inner wall layer and the top end of the water-proof outer wall layer are all higher than the top surface of the light-weight concrete;

[0022] 14) After the lightweight concrete in the layer to be filled is solidified, the corresponding square tube-shaped inner wall formwork is prepared according to the inner wall size of the gallery prefabricated monomer to be prepared, and then is coaxially hoisted and placed in the inner side of the waterproof inner wall layer by a lifting tool, the corresponding outer wall formwork is prepared according to the outer wall size of the gallery prefabricated monomer to be prepared, the outer wall formwork is provided with matched insertion holes corresponding to the connecting rib A, the connecting rib A extends out of the outer wall formwork through the insertion hole, the outer wall formwork is fixed to the connecting rib A through the insertion hole, and then the edges of the adjacent two outer wall formworks are fixed and closed; the bottom between the waterproof inner wall layer and the inner wall formwork is fixed and closed by the annular end formwork B, and the axial rib A of the inner wall steel reinforcement cage extends out of the annular end formwork B; the bottom between the waterproof outer wall layer and the outer wall formwork is fixed and closed by the annular end formwork C, and the axial rib B of the inner wall steel reinforcement cage extends out of the annular end formwork C; the annular end formwork B and the annular end formwork C are provided with sufficient supporting force by the bottom frame and are flush with the annular end formwork A, the top of the inner wall formwork and the top of the outer wall formwork are fixed by the connecting frame, so that the inner wall formwork is parallel to the waterproof inner wall layer, the outer wall formwork is parallel to the waterproof outer wall layer, then UHPC concrete is filled between the waterproof inner wall layer and the inner wall formwork and between the waterproof outer wall layer and the outer wall formwork from the top, and it is ensured that the top end of the axial rib A, the top end of the axial rib B, the top end of the waterproof inner wall layer 3 and the top end of the waterproof outer wall layer are all higher than the top surface of the UHPC concrete;

[0023] 15) After the UHPC concrete is solidified, the preparation of the gallery prefabricated monomer is completed, the outer wall formwork and the inner wall formwork are removed, then the gallery prefabricated monomer is horizontally placed on the placing frame by the lifting tool, and finally the annular end formwork A, the annular end formwork B and the annular end formwork C are removed.

[0024] A further improvement of the present application is that in step 1), the surface of the ppr unit plate is treated by a sand blasting process to form a rough surface on the surface of the ppr unit plate.

[0025] A further improvement of the present application is that in step 1), the ppr unit plate is fixed by hot melting splicing, and the raised fusion scar at the splicing joint position is polished to be flush with the end face of the ppr unit plate.

[0026] A further improvement of the present application is that in step 3), the metal mesh plate is parallel to the connected layer plate A or layer plate B.

[0027] A further improvement of the present application is that in step 5), the connecting edges of the adjacent two layer plates A are fixed by hot melting splicing.

[0028] The further improved scheme of the present application is that in the step 9), the connecting edges of the two adjacent side panels B are fixed by hot melt splicing sealing.

[0029] The further improved scheme of the present application is that in the step 13), the lightweight concrete is vibrated by a vibrating rod after filling, so that the lightweight concrete in the filling layer is fully filled in the filling layer.

[0030] The further improved scheme of the present application is that in the step 14), the UHPC concrete is vibrated by a vibrating rod after filling, so that the UHPC concrete is fully filled respectively; the top surface of the UHPC concrete vibrated by the vibrating rod is flush with the top surface of the lightweight concrete.

[0031] The present application has the following beneficial effects:

[0032] Firstly, the preparation method of the passageway prefabricated monomer of the ship lock water conveying corridor of the present application realizes efficient preparation of the passageway prefabricated monomer by first pouring the filling layer to relatively fix the water-blocking inner wall layer and the water-blocking outer wall layer, and then simultaneously pouring the inner wall UHPC layer and the outer wall UHPC layer at one time, and can be customized according to the design size of the ship lock water conveying corridor.

[0033] Secondly, in the preparation method of the passageway prefabricated monomer of the ship lock water conveying corridor of the present application, the inner wall steel reinforcement cage and the outer wall steel reinforcement cage are used to set the water-blocking inner wall layer between the inner wall UHPC layer and the filling layer, and to set the water-blocking outer wall layer between the filling layer and the outer wall UHPC layer, so as to further improve the water seepage prevention effect of the two UHPC layers inside and outside the prefabricated passageway.

[0034] Thirdly, in the preparation method of the passageway prefabricated monomer of the ship lock water conveying corridor of the present application, the materials of the water-blocking inner wall layer and the water-blocking outer wall layer are PPR plates, which have a smaller density than concrete and have a higher strength and toughness, so as to further ensure the deformation resistance effect and the water seepage prevention effect of the corridor wall.

[0035] Fourthly, in the preparation method of the passageway prefabricated monomer of the ship lock water conveying corridor of the present application, the inner wall steel reinforcement cage, the filling layer steel reinforcement cage and the outer wall steel reinforcement cage are used, so as to further effectively improve the strength of the inner wall UHPC layer, the filling layer and the outer wall UHPC layer, and also ensure the strength of the connection between the two adjacent passageway prefabricated monomers.

[0036] Fifthly, in the preparation method of the passageway prefabricated monomer of the ship lock water conveying corridor of the present application, the protruding column structure of the PPR plate of the water-blocking inner wall layer and the water-blocking outer wall layer can not only facilitate the connection and fixation with the inner wall steel reinforcement cage, the filling layer steel reinforcement cage and the outer wall steel reinforcement cage, but also effectively improve the connection strength with the concrete.

[0037] Sixth, the preparation method of the passageway prefabricated monomer of the ship lock water conveying corridor of the application, the surface of the water isolation inner wall layer and the surface of the water isolation outer wall layer are rough surfaces, so that the connection strength between the water isolation inner wall layer and the water isolation outer wall layer and the concrete can be further improved.

[0038] Seventh, the preparation method of the passageway prefabricated monomer of the ship lock water conveying corridor of the application, through the action of the connecting rib A, the connection strength between the passageway prefabricated monomer and the outer side cast-in-place concrete can be ensured, and the connecting part with the hoisting device or the fixing device when the passageway prefabricated monomer is turned over or fixed, so that the passageway prefabricated monomer is hoisted and fixed.

[0039] Eighth, the preparation method of the passageway prefabricated monomer of the ship lock water conveying corridor of the application, through the setting of the metal mesh plate, so that the aggregate in the concrete will not be extruded to the water isolation inner wall layer or the water isolation outer wall layer due to gravity or other forces, which can not only protect the water isolation inner wall layer and the water isolation outer wall layer, but also the mesh plate can further increase the contact surface between the concrete and the water isolation inner wall layer and the water isolation outer wall layer, and improve the connection effect between the concrete and the water isolation inner wall layer or the water isolation outer wall layer after the concrete is solidified. BRIEF DESCRIPTION OF DRAWINGS

[0040] Figure 1 It is an end view of the application.

[0041] Figure 2 It is an enlarged sectional view of the top corridor wall of the end.

[0042] Figure 3 It is an enlarged sectional view of the top corridor wall of the end.

[0043] Figure 4 It is an enlarged sectional view of the top corridor wall of the end.

[0044] Figure 5 It is an enlarged sectional view of the top corridor wall of the end. DETAILED DESCRIPTION

[0045] Combination Figures 1-2It can be known that the prefabricated corridor structure of the ship lock water conveying corridor comprises a corridor prefabricated monomer 1 with a rectangular cross section, the corridor wall of the corridor prefabricated monomer 1 comprises, from inside to outside, an inner wall UHPC layer 2, a water-blocking inner wall layer 3, a filling layer 4, a water-blocking outer wall layer 5 and an outer wall UHPC layer 6 which are fixed to each other, the outer wall UHPC layer 6 is uniformly fixed with a plurality of connecting ribs A7, the connecting ribs A7 outwardly extend the outer wall UHPC layer 6 and are arranged perpendicularly to the end corridor wall, the filling layer 4 is made of lightweight concrete, the inner wall UHPC layer 2, the filling layer 4 and the outer wall UHPC layer 6 correspond to the axial end surface of the corridor prefabricated monomer 1 and are flush respectively, the water-blocking inner wall layer 3 and the water-blocking outer wall layer 5 correspond to the two axial ends of the corridor prefabricated monomer 1 and respectively extend the corresponding axial end surface of the inner wall UHPC layer 2, the filling layer 4 and the outer wall UHPC layer 6, the water-blocking inner wall layer 3 and the water-blocking outer wall layer 5 are made of PPR plates, the two opposite side end surfaces of the water-blocking inner wall layer 3 are uniformly distributed with protruding columns A8 respectively, and the two opposite side end surfaces of the water-blocking outer wall layer 5 are uniformly distributed with protruding columns B9 respectively.

[0046] The side end surface of the water-blocking inner wall layer 3 facing the inner wall UHPC layer 2 is uniformly fixed with a plurality of axial ribs A10 arranged along the axial direction of the corridor prefabricated monomer 1, the side of the axial rib A10 away from the water-blocking inner wall layer 3 is uniformly fixed with a plurality of ring-shaped ribs A11 along the axial direction of the corridor prefabricated monomer 1, and the ring-shaped rib A11 is coaxially arranged with the corridor prefabricated monomer 1; the side end surface of the water-blocking outer wall layer 5 facing the outer wall UHPC layer 6 is uniformly fixed with a plurality of axial ribs B15 arranged along the axial direction of the corridor prefabricated monomer 1, the side of the axial rib B15 away from the water-blocking outer wall layer 5 is uniformly fixed with a plurality of ring-shaped ribs E16 along the axial direction of the corridor prefabricated monomer 1, and the ring-shaped rib E16 is coaxially arranged with the corridor prefabricated monomer 1, and the axial rib A10 and the axial rib B15 respectively extend the corresponding axial end surface of the inner wall UHPC layer 2 and the outer wall UHPC layer 6.

[0047] The axial rib A10 is clamped and fixed in the interval between the adjacent two rows of protruding columns A8 of the corridor prefabricated monomer 1, and the ring-shaped rib A11 fixedly connected to the axial rib A10 is located in the interval between the adjacent two rows of protruding columns A8; the axial rib B15 is clamped and fixed in the interval between the adjacent two rows of protruding columns B9 of the corridor prefabricated monomer 1, and the ring-shaped rib E16 fixedly connected to the axial rib B15 is located in the interval between the adjacent two rows of protruding columns B9.

[0048] One end of the connecting rib A7 in the outer wall UHPC layer 6 is fixedly connected with the ring-shaped rib E16, and the connecting rib A7 is uniformly distributed on the side corridor wall.

[0049] A plurality of annular ribbons B12 are uniformly fixed in the filling layer 4 of each side corridor wall of the gallery prefabricated unit 1 along the width direction of the side corridor wall, the annular ribbons B12 are connected with the water-proof inner wall layer 3 on the side of the inner wall of the side corridor wall of the gallery prefabricated unit 1, the annular ribbons B12 are connected with the water-proof outer wall layer 5 on the side of the outer wall of the side corridor wall of the gallery prefabricated unit 1, the surface surrounded by the annular ribbons B12 is parallel to the axis of the gallery prefabricated unit 1 and perpendicular to the corridor wall of the gallery prefabricated unit 1, and the annular ribbons B12 respectively extend out of the corresponding axial end surface of the filling layer 4 corresponding to the two axial ends of the gallery prefabricated unit 1.

[0050] A plurality of annular ribbons C13 are uniformly fixed on the side end surface of the water-proof inner wall layer 3 facing the filling layer 4 along the axial direction of the gallery prefabricated unit 1, and a plurality of annular ribbons D14 are uniformly fixed on the side end surface of the water-proof outer wall layer 5 facing the filling layer 4 along the axial direction of the gallery prefabricated unit 1, the side of the annular ribbons B12 facing the inner wall of the side corridor wall of the gallery prefabricated unit 1 is fixed with the side of the annular ribbons C13 facing away from the water-proof inner wall layer 3, and the side of the annular ribbons B12 facing the outer wall of the side corridor wall of the gallery prefabricated unit 1 is fixed with the side of the annular ribbons D14 facing away from the water-proof outer wall layer 5, and the annular ribbons C13 and the annular ribbons C14 are coaxially arranged with the gallery prefabricated unit 1.

[0051] The annular ribbons C13 are respectively located in the interval between the adjacent two rows of protruding columns A8 of the gallery prefabricated unit 1 in the circumferential direction, and the annular ribbons D14 are respectively located in the interval between the adjacent two rows of protruding columns B9 of the gallery prefabricated unit 1 in the circumferential direction.

[0052] The side of the annular ribbons B12 facing the inner wall of the side corridor wall of the gallery prefabricated unit 1 is correspondingly arranged in the interval between the adjacent two rows of protruding columns A8 of the gallery prefabricated unit 1 in the circumferential direction, and the side of the annular ribbons B12 facing the outer wall of the side corridor wall of the gallery prefabricated unit 1 is correspondingly arranged in the interval between the adjacent two rows of protruding columns B9 of the gallery prefabricated unit 1 in the circumferential direction.

[0053] At least one annular ribbon B12 is distributed along the width direction of the side corridor wall at the corner of the adjacent two side corridor walls of the gallery prefabricated unit 1, the side of the annular ribbons B12 facing the outer wall of the side corridor wall of the gallery prefabricated unit 1 is connected with the water-proof outer wall layer 5, the surface surrounded by the annular ribbons B12 is parallel to the axis of the gallery prefabricated unit 1 and perpendicular to the corridor wall of the gallery prefabricated unit 1, and the annular ribbons B12 arranged at the corners of the adjacent two side corridor walls are fixedly connected by the two side ends being perpendicular to each other.

[0054] The surface of the two side end faces of the water-proof inner wall layer 3 and the surface of the two side end faces of the water-proof outer wall layer 5 are respectively provided with a metal mesh plate 33, and the protruding column A8 and the protruding column B9 respectively pass through the mesh of the metal mesh plate 33.

[0055] The surface of the water-proof inner wall layer 3 and the surface of the water-proof outer wall layer 5 are rough surfaces.

[0056] The surface of the water-proof inner wall layer 3 and the surface of the water-proof outer wall layer 5 are rough surfaces formed by sand blasting.

[0057] The sum of the thicknesses of the inner wall UHPC layer 2 and the outer wall UHPC layer 6 is less than or equal to the thickness of the filling layer 4.

[0058] The metal mesh plate 33 is parallel to the connected layer plate A or layer plate B.

[0059] Combined Figures 1-2 It can be known that the preparation method of the gallery prefabricated monomer of the ship lock water conveying gallery comprises the following steps:

[0060] 1) The ppr unit plates with the protruding columns uniformly arranged on the two side end faces are respectively sealed, spliced and fixed according to the sizes of the side gallery walls of the gallery prefabricated monomer 1 to be prepared, so as to prepare the layer plates A and layer plates B of the water-proof inner wall layer 3 and the water-proof outer wall layer 5 corresponding to the side gallery walls;

[0061] The surface of the ppr unit plate is treated by the sand blasting process, so that the surface of the ppr unit plate forms a rough surface;

[0062] The ppr unit plates are sealed and fixed by hot melting splicing, and the raised fusion scars at the splicing seam positions are polished to be flush with the end faces of the ppr unit plates;

[0063] 2) Then, the metal mesh plates 33 are respectively fixed on the two opposite side end faces of each side layer plate A of the water-proof inner wall layer 3 and the two opposite side end faces of each side layer plate B of the water-proof outer wall layer 5;

[0064] The metal mesh plate 33 is parallel to the connected layer plate A or layer plate B.

[0065] 3) A plurality of axially arranged axial rib strips A10 are uniformly arranged around the inner wall of the water-proof inner wall layer 3 according to the size of the inner wall, and a plurality of annular rib strips A11 are connected along the length direction of the axial rib strips A10, so that the plane surrounded by the annular rib strips A11 is perpendicular to the axial rib strips A10, forming an inner wall steel cage; at this time, the axial rib strips A10 can be adjusted along one side connected by the annular rib strips A11, and the annular rib strips A11 can be adjusted along the axial rib strips A10.

[0066] 4) Fix each layer plate A of the waterproof inner wall layer 3 with the axial rib A10 on the corresponding side of the inner wall reinforcement cage, and fix the axial rib A10 connected with the layer plate A uniformly in the interval between the adjacent two rows of protruding columns A8 along the circumference of the corridor prefabricated monomer 1 to be prepared, and the annular rib A11 is correspondingly located in the interval between the adjacent two rows of protruding columns A8 along the axis of the corridor prefabricated monomer 1 to be prepared;

[0067] 5) Seal and splice the connecting edges of each adjacent two side layer plates A corresponding to the waterproof inner wall layer 3 to form the waterproof inner wall layer 3; the connecting edges of the adjacent two side layer plates A are fixed by hot melt splicing sealing;

[0068] 6) Then a plurality of coaxial annular ribs C13 are uniformly sleeved and fixed on the outer side surface of the waterproof inner wall layer 3 along the axis of the corridor prefabricated monomer 1 to be prepared, and the annular rib C13 is fixed in the interval between the adjacent two rows of protruding columns A8 along the axis of the corridor prefabricated monomer 1 to be prepared;

[0069] 7) Then the annular rib C13 is uniformly fixed with the annular rib B12 along the annular direction of the annular rib C13, the plane surrounded by the annular rib B12 is parallel to the axis of the corridor prefabricated monomer 1 to be prepared, and perpendicular to the corresponding layer plate A of the waterproof inner wall layer 3 contacted, the length direction of the annular rib B12 is parallel to the axis of the corridor prefabricated monomer 1 to be prepared, and the annular rib B12 is adjusted to be uniformly located in the interval between the adjacent two rows of protruding columns A8 along the circumference of the corridor prefabricated monomer 1 to be prepared; Then a plurality of annular ribs D14 are uniformly sleeved on the side edge of the annular rib B12 away from the waterproof inner wall layer 3 along the axis of the corridor prefabricated monomer 1 to be prepared, so as to form a filling layer reinforcement cage;

[0070] 8) Fix each layer plate B of the waterproof outer wall layer 5 with the annular rib D14 on the corresponding side of the filling layer reinforcement cage, and fix the annular rib D14 connected with the layer plate B uniformly in the interval between the adjacent two rows of protruding columns B9 along the axis of the corridor prefabricated monomer 1 to be prepared, and the annular rib B12 is correspondingly uniformly located in the interval between the adjacent two rows of protruding columns B9 along the circumference of the corridor prefabricated monomer 1 to be prepared;

[0071] 9) Seal and splice the connecting edges of each adjacent two side layer plates B corresponding to the waterproof outer wall layer 5 to form the waterproof outer wall layer 5; the connecting edges of the adjacent two side layer plates B are fixed by hot melt splicing sealing;

[0072] 10) the axial rib B15 is respectively fixed in the interval between the adjacent two rows of protruding columns B9 along the side wall of the water-proof outer wall layer 5 of the prefabricated monomer 1 to be prepared, and the annular rib E16 is coaxially sleeved and fixed on the axial rib B15 of the outer surface of the water-proof outer wall layer 5, and the annular rib E16 is uniformly distributed along the axial direction of the prefabricated monomer 1 to be prepared, and the annular rib E16 is respectively located in the interval between the adjacent two rows of protruding columns B9 along the axial direction of the prefabricated monomer 1 to be prepared, thereby forming the outer wall reinforcement cage;

[0073] 11) the annular rib E16 is respectively uniformly fixed with the connecting rib A7 on the side away from the side wall of the water-proof outer wall layer 5, and the connecting rib A7 is perpendicular to the side wall of the water-proof outer wall layer 5;

[0074] 12) the axial end of the water-proof inner wall layer 3 and the water-proof outer wall layer 5 corresponding to the prefabricated monomer 1 to be prepared is fixed and closed by the annular end template A, and the annular rib B12, the annular rib C13 and the annular rib D14 of the filling layer reinforcement cage corresponding to the axial end are extended out of the annular end template A;

[0075] 13) the water-proof inner wall layer 3 and the water-proof outer wall layer 5 are lifted together with the inner wall reinforcement cage, the filling layer reinforcement cage and the outer wall reinforcement cage by the lifting device and the support, the end of the annular end template A is located at the bottom and is fixed by the bottom support to provide sufficient support force, then the light-weight concrete is filled into the filling layer 4 between the water-proof inner wall layer 3 and the water-proof outer wall layer 5 from the top, and it is ensured that the top end of the filling layer reinforcement cage, the top end of the water-proof inner wall layer 3 and the top end of the water-proof outer wall layer 5 are all higher than the top surface of the light-weight concrete;

[0076] after the light-weight concrete is filled, the light-weight concrete is vibrated by the vibration rod to make the light-weight concrete in the filling layer 4 fully fill the filling layer 4;

[0077] 14) After the lightweight concrete in the filling layer 4 is solidified, the corresponding square tube-shaped inner wall formwork is prepared according to the inner wall size of the gallery prefabricated monomer 1 to be prepared, and then is coaxially hoisted in the waterproof inner wall layer 3 by a lifting tool, the corresponding outer wall formwork is prepared according to the outer wall size of the gallery prefabricated monomer 1 to be prepared, the outer wall formwork is provided with matched insertion holes corresponding to the connecting bars A7, the connecting bars A7 are extended out of the outer wall formwork through the insertion holes, the outer wall formwork is fixed to the connecting bars A7 through the insertion holes, and then the edges of the outer wall formwork on two adjacent sides are fixed and closed; the bottom between the waterproof inner wall layer 3 and the inner wall formwork is fixed and closed by the annular end formwork B, and the axial rib A10 of the inner wall steel reinforcement cage is extended out of the annular end formwork B; the bottom between the waterproof outer wall layer 5 and the outer wall formwork is fixed and closed by the annular end formwork C, and the axial rib B15 of the inner wall steel reinforcement cage is extended out of the annular end formwork C; the annular end formwork B and the annular end formwork C are provided with sufficient support force by the chassis and are flush with the annular end formwork A, the top of the inner wall formwork and the top of the outer wall formwork are fixed by the connecting frame, so that the inner wall formwork is parallel to the waterproof inner wall layer 3, and the outer wall formwork is parallel to the waterproof outer wall layer 5, then UHPC concrete is filled between the waterproof inner wall layer 3 and the inner wall formwork and between the waterproof outer wall layer 5 and the outer wall formwork from the top, and it is ensured that the top end of the axial rib A10, the top end of the axial rib B15, the top end of the waterproof inner wall layer 3 and the top end of the waterproof outer wall layer 5 are all higher than the top surface of the UHPC concrete;

[0078] After the UHPC concrete is filled, the UHPC concrete is vibrated by a vibration rod to be fully filled;

[0079] 15) After the UHPC concrete is solidified, the preparation of the gallery prefabricated monomer 1 is completed, the outer wall formwork and the inner wall formwork are removed, then the gallery prefabricated monomer 1 is horizontally placed on the placing frame by a lifting tool, and finally the annular end formwork A, the annular end formwork B and the annular end formwork C are removed.

[0080] In combination Figures 3-5 It can be known that the connecting construction method of the two adjacent gallery prefabricated monomers 1 comprises the following steps:

[0081] a) When one of the gallery prefabricated monomers 1 is installed and fixed to the water conveying gallery, a prefabricated connecting ring 17 is coaxially installed and connected at the end of the gallery prefabricated monomer 1 to be connected to another gallery prefabricated monomer 1, the inner wall of the prefabricated connecting ring 17 is flush with the inner wall of the gallery prefabricated monomer 1 which is installed and fixed, the prefabricated connecting ring 17 comprises a UHPC prefabricated layer 18 and a connecting waterproof connecting layer A 19 which are coaxially arranged from inside to outside in turn, the inner wall of the UHPC prefabricated layer 18 is flush with the inner wall of the gallery prefabricated monomer 1, one end of the connecting waterproof connecting layer A 19 is matched and connected with the waterproof connecting layer A 19 connected with the waterproof inner wall layer 3 of the gallery prefabricated monomer 1;

[0082] The end inner wall of the prefabricated connecting ring 17 is outwardly coaxially provided with a positioning ring, one end of the inner wall of the gallery prefabricated monomer 1 facing the prefabricated connecting ring 17 is provided with an annular groove matched with the positioning ring, and the positioning ring is matched and connected in the annular groove when the prefabricated connecting ring 17 is connected with the gallery prefabricated monomer 1;

[0083] When the prefabricated connecting ring 17 is connected with the gallery prefabricated monomer 1, the outer side wall surface of the positioning ring is coated with a layer of UHPC concrete;

[0084] b) A layer of UHPC concrete is brushed on the range of the UHPC layer 2 at the end of the gallery prefabricated monomer 1 which is installed and fixed and faces the prefabricated connecting ring 17, then the end of the UHPC prefabricated layer 18 of the prefabricated connecting ring 17 is butt jointed and fixed with the end of the UHPC layer 2 brushed with UHPC concrete;

[0085] c) The inner wall surface and the outer wall surface of the waterproof connecting layer A 19 are respectively and uniformly provided with protruding columns C 20, the end of the axial rib A 10 of the gallery prefabricated monomer 1 which is installed and fixed faces the prefabricated connecting ring 17 and is connected and fixed with the axial connecting rib A 21, and the axial connecting rib A 21 is clamped and fixed in the interval between the two adjacent rows of protruding columns C 20 in the axial direction;

[0086] d) The part of the waterproof inner wall layer 3 facing one end of the prefabricated connecting ring 17 is compacted and attached to the outer wall surface of the waterproof connecting layer A 19;

[0087] The protruding columns C 20 on the outer wall surface of the waterproof connecting layer A 19 which overlap with the waterproof inner wall layer 3 are removed;

[0088] e) The outer wall surface of the waterproof connecting layer A 19 is uniformly fixed with a coaxial annular connecting rib A 22 along the axial direction of the gallery prefabricated monomer 1 which is installed and fixed, the annular connecting rib A 22 is fixed with the axial connecting rib A 21 to form an inner wall layer connecting steel cage;

[0089] f) Brushing UHPC concrete on the end of the gallery prefabricated monomer 1 opposite to the prefabricated connecting ring 17, and connecting the other end of the gallery prefabricated monomer 1 to be connected coaxially to the prefabricated connecting ring 17;

[0090] g) Fixing and connecting the axial connecting rib A21 to the axial rib A10 of the other gallery prefabricated monomer 1 to be connected respectively;

[0091] h) And pressing the part of the waterproof inner wall layer 3 of the other gallery prefabricated monomer 1 to be connected located at the end of the connecting prefabricated connecting ring 17 to the outer wall surface of the waterproof connecting layer A19;

[0092] i) Fixing the "C" shaped inner wall layer template with the opening upward at the position between the waterproof inner wall layers 3 of the two adjacent gallery prefabricated monomers 1 connected by the prefabricated connecting ring 17, the inner wall of the "C" shaped inner wall layer template is in contact with the two sides and the bottom of the annular connecting rib A22, the top of the "C" shaped inner wall layer template is flush with the top of the annular connecting rib A22, and the two axial ends of the "C" shaped inner wall layer template are respectively in contact with the corresponding waterproof inner wall layer 3;

[0093] j) Pouring UHPC concrete into the "C" shaped inner wall layer template to the top of the UHPC concrete flush with the top of the "C" shaped inner wall layer template, and making the UHPC concrete fully flow into the gap between the prefabricated connecting ring 17 and the two adjacent gallery prefabricated monomers 1 by the vibration device, after the UHPC concrete is solidified, the "C" shaped inner wall layer template is removed;

[0094] k) Then, on the outside of each side wall of the prefabricated connecting ring 17, corresponding to the waterproof inner wall layer 3 and the waterproof outer wall layer 5 of the prefabricated monomer 1, a filling layer connecting steel cage is respectively connected and fixed, which includes a plurality of annular connecting bars B24 and annular connecting bars C25 fixed perpendicularly to each other, the plane surrounded by the annular connecting bars B24 is parallel to the plane surrounded by the annular bars B12 and is uniformly distributed along the width direction of the side wall of the side where the prefabricated connecting ring 17 is located, the annular connecting bars B24 are respectively arranged in the interval between the adjacent two rows of protruding columns A8 on the outer wall axis of the waterproof inner wall layer 3 and the interval between the adjacent two rows of protruding columns B9 on the inner wall axis of the waterproof outer wall layer 5; the plane surrounded by the annular connecting bars C25 is perpendicular to the axis of the prefabricated connecting ring 17 and is uniformly distributed along the circumference of the prefabricated connecting ring 17, the outer side and the inner side of the annular connecting bars B24 are respectively fixed corresponding to the outer side and the inner side of the annular connecting bars C25; each prefabricated monomer 1 is respectively fixed with at least one annular connecting bar C25, the outer side and the inner side of the annular connecting bar C25 fixed with the prefabricated monomer 1 are respectively arranged in the interval between the adjacent two rows of protruding columns A8 on the outer wall axis of the waterproof inner wall layer 3 and the interval between the adjacent two rows of protruding columns B9 on the inner wall axis of the waterproof outer wall layer 5;

[0095] l) A "C" shaped filling layer formwork with the opening upward is fixed at the position between the waterproof outer wall layers 5 of the adjacent prefabricated monomers 1 connected by the prefabricated connecting ring 17, the inner wall of the "C" shaped filling layer formwork is in contact with the outer surface of the two sides and the bottom of the waterproof outer wall layer 5, the top of the "C" shaped filling layer formwork is flush with the outer surface of the top of the waterproof outer wall layer 5, and the two axial ends of the "C" shaped filling layer formwork are respectively in contact with the adjacent ends of the adjacent prefabricated monomers 1;

[0096] m) UHPC concrete is poured into the "C" shaped filling layer formwork until the top surface of the UHPC concrete is flush with the top of the "C" shaped filling layer formwork, and the UHPC concrete is fully flowed into the gap between the prefabricated connecting ring 17 and the two adjacent prefabricated monomers 1 by the vibration device, after the UHPC concrete is solidified, the "C" shaped filling layer formwork is removed, and the annular filling connecting layer 26 is formed;

[0097] n) Then, the axial connecting bars B28 are respectively fixed and connected corresponding to the axial bars B15 of another prefabricated monomer 1 to be connected;

[0098] o) one of the end faces of the layer plate D with the protruding columns D30 evenly distributed on both opposite sides of the end face is coated with a UHPC concrete layer, and the UHPC concrete layer is flush with the end of the protruding column D30 on the side end face of the layer plate D, then the end face of each layer plate D coated with the UHPC concrete layer is respectively fixed to the corresponding side outer surface of the annular filling connecting layer 26, and the axial rib B15 is respectively clamped and fixed in the space between the two adjacent rows of protruding columns D30 on the axial side end face of the layer plate D coated with the UHPC concrete; the layer plate D is compacted towards the connecting side of the annular filling connecting layer 26, so that the UHPC concrete can flow into the gap between the layer plate D and the annular filling connecting layer 26, the gap between the layer plate D and the corridor prefabricated monomer 1, and even seep out from the edge of the layer plate D;

[0099] The protruding columns D30 on the end face of the layer plate D facing the annular filling connecting layer 26 are removed corresponding to the overlapping part with the water-resistant outer wall layer 5; the two axial ends of the layer plate D are respectively in contact with the end face of the corridor prefabricated monomer 1 on the corresponding end;

[0100] p) after the UHPC concrete used to fix the layer plate D is solidified, the UHPC concrete extending from the edge of the layer plate D is scraped off, and the corresponding edges between the two adjacent layer plates D are fixed by hot melting, thereby forming a water-resistant connecting layer B29 with a ring-shaped closed structure coaxially arranged with the prefabricated connecting ring 17;

[0101] q) a plurality of connecting ribs B are evenly distributed along the axis of the water-resistant connecting layer B29, and are respectively fixed around the outer surface of the water-resistant connecting layer B29 by a bending device, thereby forming a ring-shaped connecting rib D31 coaxially arranged with the prefabricated connecting ring 17, and the ring-shaped connecting rib D31 is respectively clamped and fixed in the space between the two adjacent rows of protruding columns D30 on the outer wall of the water-resistant connecting layer B29;

[0102] r) a "C" shaped outer wall layer template is fixed with the opening upwards at the position between the adjacent corridor prefabricated monomers 1 connected by the prefabricated connecting ring 17, the inner walls of the two axial ends of the "C" shaped outer wall layer template are respectively in contact with the outer surfaces of the two sides and the bottom of the outer wall UHPC layer 6 of the corridor prefabricated monomer 1 on the corresponding end, and the top of the "C" shaped outer wall layer template is flush with the outer surface of the top of the outer wall UHPC layer 6 of the corridor prefabricated monomer 1;

[0103] s) pouring UHPC concrete into the "C" shaped outer wall layer template to the top surface of the UHPC concrete and the top of the "C" shaped outer wall layer template, and making the UHPC concrete fully flow into the range surrounded by the "C" shaped outer wall layer template through the vibration device, forming the outer wall cast-in-place layer 32 after the UHPC concrete solidifies, and removing the "C" shaped inner wall layer template, thereby finally completing the fixed connection of the two adjacent vestibules.

Claims

1. A method for the production of prefabricated passageways for ship lock water conveyance galleries, characterized in that The method comprises the following steps: 1) first, the ppr unit plate with protruding columns on both sides of the end surface is uniformly sealed and spliced and fixed according to the size of each side corridor wall of the prepared corridor prefabricated monomer (1), so as to prepare the layer plate A and layer plate B of the water-proof inner wall layer (3) and water-proof outer wall layer (5) corresponding to each side corridor wall; 2) then, the two opposite side end surfaces of each side layer plate A of the water-proof inner wall layer (3) and the two opposite side end surfaces of each side layer plate B of the water-proof outer wall layer (5) are respectively fixed with a metal mesh plate (33); 3) a plurality of parallelly arranged axial ribbons A (10) are uniformly arranged around the inner wall of the water-proof inner wall layer (3), and then a plurality of annular ribbons A (11) are connected along the length direction of the axial ribbons A (10), so that the plane surrounded by the annular ribbons A (11) is perpendicular to the axial ribbons A (10), forming an inner wall steel cage; at this time, the axial ribbons A (10) can be adjusted along one side connected by the annular ribbons A (11), and the annular ribbons A (11) can be adjusted along the axial ribbons A (10); 4) each layer plate A of the water-proof inner wall layer (3) is fixed with the axial ribbons A (10) of each corresponding side of the inner wall steel cage; when fixed, the axial ribbons A (10) connected with the layer plate A are uniformly clamped and fixed in the interval between the adjacent two rows of protruding columns A (8) along the circumference of the prepared corridor prefabricated monomer (1), and the annular ribbons A (11) are respectively located in the interval between the adjacent two rows of protruding columns A (8) along the axial direction of the prepared corridor prefabricated monomer (1); 5) the connecting edges of each adjacent two side layer plates A corresponding to the water-proof inner wall layer (3) are sealed, spliced and fixed, forming the water-proof inner wall layer (3); 6) then, a plurality of coaxial annular ribbons C (13) are uniformly sleeved and fixed on the outer side end surface of the water-proof inner wall layer (3) along the axial direction of the prepared corridor prefabricated monomer (1); the annular ribbons C (13) are respectively clamped and fixed in the interval between the adjacent two rows of protruding columns A (8) along the axial direction of the prepared corridor prefabricated monomer (1); 7) then, the annular ribbons C (13) are uniformly fixed with annular ribbons B (12) along the annular direction of the annular ribbons C (13); the plane surrounded by the annular ribbons B (12) is parallel to the axial direction of the prepared corridor prefabricated monomer (1) and perpendicular to the corresponding layer plate A of the water-proof inner wall layer (3) contacted; the length direction of the annular ribbons B (12) is parallel to the axial direction of the prepared corridor prefabricated monomer (1); the annular ribbons B (12) are adjusted to be uniformly located in the interval between the adjacent two rows of protruding columns A (8) along the circumference of the prepared corridor prefabricated monomer (1) of the corresponding layer plate A of the water-proof inner wall layer (3) contacted; then, a plurality of annular ribbons D (14) are uniformly sleeved on the side edge of the annular ribbons B (12) away from the water-proof inner wall layer (3) along the axial direction of the prepared corridor prefabricated monomer (1), so as to form a filling layer steel cage; 8) Fix each layer plate B of the water-proof outer wall layer (5) with the corresponding side of the filling layer steel cage, and fix the ring-shaped steel bars D (14) evenly between the adjacent two rows of protruding columns B (9) of the gallery prefabricated monomer 1 to be prepared, and fix the ring-shaped steel bars B (12) evenly between the adjacent two rows of protruding columns B (9) of the gallery prefabricated monomer (1) to be prepared; 9) Seal, splice and fix the connecting edges of each adjacent two layer plates B of the water-proof outer wall layer (5) to form the water-proof outer wall layer (5); 10) Fix the multiple parallel arranged axial steel bars B (15) with the corresponding side walls of the water-proof outer wall layer (5) between the adjacent two rows of protruding columns B (9) of the gallery prefabricated monomer (1) to be prepared, and coaxially fix the multiple ring-shaped steel bars E (16) on the axial steel bars B (15) on the outer surface of the water-proof outer wall layer (5), and the ring-shaped steel bars E (16) are evenly distributed along the axial direction of the gallery prefabricated monomer (1) to be prepared, and the ring-shaped steel bars E (16) are located between the adjacent two rows of protruding columns B (9) of the gallery prefabricated monomer (1) to be prepared, thereby forming the outer wall steel cage; 11) Fix the connecting steel bars A (7) on the side of the ring-shaped steel bars E (16) away from the side wall of the water-proof outer wall layer (5), and the connecting steel bars A (7) are perpendicular to the side wall of the water-proof outer wall layer (5); 12) Fix and close the axial end of the water-proof inner wall layer (3) and the water-proof outer wall layer (5) corresponding to the gallery prefabricated monomer (1) to be prepared by the ring-shaped end template A, and make the ring-shaped steel bars B (12), the ring-shaped steel bars C (13) and the ring-shaped steel bars D (14) of the filling layer steel cage protrude out of the ring-shaped end template A corresponding to the axial end; 13) Lift the water-proof inner wall layer (3) and the water-proof outer wall layer (5) together with the inner wall steel cage, the filling layer steel cage and the outer wall steel cage by the lifting device and the support, make the end of the ring-shaped end template A located at the bottom and fixed by the bottom support to provide sufficient support force, then fill the light weight concrete into the filling layer (4) between the water-proof inner wall layer (3) and the water-proof outer wall layer (5) from the top, and ensure that the top end of the filling layer steel cage, the top end of the water-proof inner wall layer (3) and the top end of the water-proof outer wall layer (5) are all higher than the top surface of the light weight concrete; 14) After the lightweight concrete in the filling layer (4) is solidified, the corresponding square tube-shaped inner wall template is prepared according to the inner wall size of the gallery prefabricated monomer (1) to be prepared, and then is coaxially hoisted in the inner side of the waterproof inner wall layer 3 by a lifting tool, the corresponding outer wall template is prepared according to the outer wall size of the gallery prefabricated monomer (1) to be prepared, the outer wall template is provided with a matching insertion hole corresponding to the connecting rib A (7), the connecting rib A (7) extends out of the outer wall template through the insertion hole, the outer wall template is inserted and fixed on the connecting rib A (7) through the insertion hole, and the edges of the outer wall templates on the adjacent two sides are fixed and closed; the bottom between the waterproof inner wall layer (3) and the inner wall template is fixed and closed by the annular end template B, and the axial rib A (10) of the inner wall steel reinforcement cage extends out of the annular end template B; the bottom between the waterproof outer wall layer (5) and the outer wall template is fixed and closed by the annular end template C, and the axial rib B (15) of the inner wall steel reinforcement cage extends out of the annular end template C; the annular end template B and the annular end template C are provided with sufficient support force by the chassis and are flush with the annular end template A, the top of the inner wall template and the top of the outer wall template are fixed by the connecting frame, so that the inner wall template is parallel to the waterproof inner wall layer (3) and the outer wall template is parallel to the waterproof outer wall layer (5), then UHPC concrete is filled between the waterproof inner wall layer (3) and the inner wall template and between the waterproof outer wall layer (5) and the outer wall template from the top, and it is ensured that the top end of the axial rib A (10), the top end of the axial rib B (15), the top end of the waterproof inner wall layer (3) and the top end of the waterproof outer wall layer (5) are all higher than the top surface of the UHPC concrete; 15) After the UHPC concrete is solidified, the preparation of the gallery prefabricated monomer (1) is completed, the outer wall template and the inner wall template are removed, then the gallery prefabricated monomer (1) is horizontally placed on the placing frame by a lifting tool, and finally the annular end template A, the annular end template B and the annular end template C are removed.

2. The method of producing a precast landing for a ship lock water conveyance gallery according to claim 1, characterized in that: In the step 1), the surface of the ppr unit plate is treated by a sand blasting process to form a rough surface on the surface of the ppr unit plate.

3. The method of producing a precast landing for a ship lock water conveyance gallery according to claim 1, wherein: In the step 1), the ppr unit plates are fixed by hot melting splicing, and the raised fusion scars at the splicing joint positions are polished to be flush with the end faces of the ppr unit plates.

4. The method of producing a precast landing for a ship lock water conveyance gallery of claim 1, wherein: In the step 3), the metal mesh plate (33) is parallel to the connected layer plate A or layer plate B.

5. The method of producing a precast landing for a ship lock water conveyance gallery of claim 1, wherein: In the step 5), the connecting edges of the adjacent two layer plate A are fixed by hot melting splicing.

6. The method of producing a precast landing for a ship lock water conveyance gallery of claim 1, wherein: In the step 9), the connecting edges of the adjacent two layer plate B are fixed by hot melting splicing.

7. The method of producing a precast landing for a ship lock water flume as defined in claim 1 wherein: In the step 13), the lightweight concrete is vibrated by a vibration rod after being filled, so that the lightweight concrete in the filling layer (4) is fully filled in the filling layer (4).

8. The method of producing a precast landing for a ship lock water conveyance gallery of claim 1, wherein: In the step 14), the UHPC concrete is vibrated by a vibration rod after being filled, so that the UHPC concrete is fully filled; the top surface of the UHPC concrete vibrated by the vibration rod is flush with the top surface of the lightweight concrete.

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