Mold device for comprehensive pipe gallery construction and construction method

Abstract

The present application relates to the technical field of pipe gallery construction, in particular to a mold device for comprehensive pipe gallery construction and a construction method. The mold device comprises a box-shaped outer mold, a bottom plate guide wall mold, a box-shaped inner mold, a pair of dismantling molds, a sinking section angle compensation mold, a horizontal turning angle compensation mold and a deformation joint integrated installation module. The construction method is realized based on the mold device. The present application provides a complete mold system solution for comprehensive pipe gallery, realizes convenient construction of comprehensive pipe gallery and has better universality.

Description

Technical Field

[0001] This invention relates to the field of utility tunnel construction technology, and more specifically, to a mold device and construction method for integrated utility tunnel construction. Background Technology

[0002] Integrated utility tunnels are public facilities built underground in cities for laying municipal utility pipelines, with unified planning, design, construction, and maintenance. Currently, integrated utility tunnels typically use reinforced concrete box culvert structures cast in concrete. These tunnels do not extend in a straight line; they have sloping structures in height and turning structures in the horizontal direction. Furthermore, they often include features such as expansion joints and ventilation openings. This necessitates the use of various sizes of casting molds during the current casting construction methods. Summary of the Invention

[0003] This invention provides a mold device and construction method for integrated utility tunnel construction, which can overcome some or all the defects of the prior art.

[0004] According to a mold device for construction of integrated utility tunnels, the present invention includes a box-shaped outer mold, a bottom plate guide wall mold, a box-shaped inner mold, a splitting mold, a sunken section angle compensation mold, a horizontal rotation angle compensation mold, and an expansion joint integrated installation module.

[0005] Among them, the bottom plate guide wall mold is used in conjunction with the box-shaped outer mold to form the casting cavity of the bottom plate and guide wall of the integrated pipe gallery;

[0006] Among them, the inner box mold is used in conjunction with the outer box mold to form the casting cavity for the wall and top slab of the integrated utility tunnel;

[0007] Among them, the demolding is used to form a casting cavity with an orifice structure in conjunction with the box-shaped outer mold;

[0008] Among them, the angle compensation mold for the sunken section is used in conjunction with the outer mold of the box type, the bottom plate guide wall mold and the inner mold of the box type to form the casting cavity of the sunken section;

[0009] Among them, the horizontal turning angle compensation mold is used in conjunction with the box-shaped outer mold, the bottom plate guide wall mold and the box-shaped inner mold to form the casting cavity of the corner section;

[0010] The expansion joint integrated installation module is used to be embedded into the casting cavity to form an expansion joint structure after concrete is poured.

[0011] Preferably, the box-shaped outer mold has an outer mold frame, one side of which is formed by setting a plate to form the outer mold surface, and the other side of the outer mold frame forms the mounting surface; multiple connecting pieces are set at both ends of the outer mold frame in the horizontal direction, and multiple mounting screws are set at the mounting surface.

[0012] Preferably, the base plate guide wall mold includes a left box module and a right box module, which are detachably connected by guide wall mold frame components; the bottom and outer sides of the left and right box modules are formed by setting plates to form guide wall model surfaces, and the top surfaces of the left and right box modules are formed by setting plates to form protective surfaces; multiple connecting pieces are set at both ends of the left and right box modules in the horizontal direction.

[0013] Preferably, the box-shaped inner mold includes a left box-shaped inner mold and a right box-shaped inner mold, which are detachably connected by an inner mold frame component; a demolding cover plate is detachably provided between the upper parts of the left box-shaped inner mold and the right box-shaped inner mold, and an inner mold connecting frame is provided between the upper parts of the left box-shaped inner mold and the right box-shaped inner mold; the top and outer sides of the left box-shaped inner mold and the right box-shaped inner mold are formed by providing plates; and multiple connecting pieces are provided at both ends of the left box-shaped inner mold and the right box-shaped inner mold in the transverse direction.

[0014] Preferably, the mold splitting includes a first pair of mold splitting and a second pair of mold splitting for pairing. Both the first pair of mold splitting and the second pair of mold splitting are right-angled triangles. The sides of the corresponding right-angled sides of the first pair of mold splitting and the second pair of mold splitting are formed by setting plates to form the mold splitting surface. The sides of the corresponding hypotenuses of the first pair of mold splitting and the second pair of mold splitting are detachably connected by mold splitting connectors.

[0015] Preferably, the sinking section angle compensation mold includes a sinking section angle compensation mold body, the two ends of the sinking section angle compensation mold body have a first end face and a second end face, and the outer periphery of the sinking section angle compensation mold body forms a first side face, a second side face, a third side face and a fourth side face connected in sequence, with the second side face being inclined; the sinking section angle compensation model surface is formed by setting plates at the first end face, the first side face and the second side face.

[0016] Preferably, the horizontal rotation angle compensation mold includes a left box-shaped horizontal rotation angle compensation mold and a right box-shaped horizontal rotation angle compensation mold, which are detachably connected by a horizontal rotation angle compensation mold frame component; an irregularly shaped demolding cover plate is detachably provided between the upper parts of the left box-shaped horizontal rotation angle compensation mold and the right box-shaped horizontal rotation angle compensation mold; the top surface and outer surface of the left box-shaped horizontal rotation angle compensation mold and the right box-shaped horizontal rotation angle compensation mold form a horizontal rotation angle compensation model surface by providing plates; and multiple connecting pieces are provided at both ends of the left box-shaped horizontal rotation angle compensation mold and the right box-shaped horizontal rotation angle compensation mold in the horizontal direction.

[0017] Preferably, the expansion joint integrated installation module includes an expansion joint integrated installation module body, the outline of which is consistent with the cross-section of the integrated utility tunnel and is used to form an expansion joint structure after concrete is poured; the expansion joint integrated installation module body includes a skeleton, the skeleton having a front and rear side corresponding to the cross-section of adjacent sections of the integrated utility tunnel, and an outer side corresponding to the outer wall of the integrated utility tunnel; an expansion joint plate assembly is installed on the front side of the skeleton through a plate installation frame assembly, and a waterproof assembly is installed on the outer side of the skeleton.

[0018] According to a method for constructing a comprehensive utility tunnel based on the present invention, it is used to construct a utility tunnel structure from an already supported foundation pit, wherein the utility tunnel structure is a reinforced concrete box culvert structure; it includes,

[0019] The subbase construction involves forming a plain concrete subbase at the bottom of the foundation pit.

[0020] Waterproof membrane pre-laying: Waterproof membrane is laid on the shaped surface of the box-shaped outer mold.

[0021] Box-shaped outer mold installation: Hoist the box-shaped outer mold to the preset position and install it;

[0022] Construction of the bottom slab reinforcement cage and wall reinforcement cage: The bottom slab reinforcement cage and wall reinforcement cage are formed by binding in the area of ​​the bottom slab and wall of the pipe gallery structure corresponding to the foundation pit.

[0023] Install the bottom plate guide wall formwork, and install the bottom plate guide wall formwork on the inner side of the bottom plate reinforcement cage and the wall reinforcement cage;

[0024] The bottom slab and guide wall sections of the pipe gallery structure are formed by pouring concrete.

[0025] Remove the base slab guide wall formwork;

[0026] Install the box-type inner mold;

[0027] The construction of the top slab steel reinforcement cage involves binding the top slab steel reinforcement cage in the area of ​​the top slab corresponding to the pipe gallery structure in the foundation pit.

[0028] The top slab and side walls of the pipe gallery structure are formed by pouring concrete.

[0029] Based on the above, the casting and molding of the pipe gallery structure can be achieved better.

[0030] Remove the inner mold of the box-shaped structure.

[0031] As a preferred option, it also includes,

[0032] After the outer box-shaped formwork is installed, the expansion joint integrated installation module is installed by hoisting it to the preset position and then installing it. Based on this, the expansion joint structure can be formed more effectively.

[0033] The present invention has the following beneficial effects:

[0034] It provides a complete mold system solution for integrated utility tunnels, enabling convenient construction of integrated utility tunnels and possessing good versatility. Attached Figure Description

[0035] Figure 1 This is a front view of the box-shaped outer mold in Example 1;

[0036] Figure 2 This is a schematic diagram of the right side of the box-shaped outer mold in Example 1;

[0037] Figure 3 This is a schematic diagram of the lower side of the box-shaped outer mold in Example 1;

[0038] Figure 4 This is a schematic diagram of the bottom plate guide wall mold in Example 1;

[0039] Figure 5 This is a side explosion diagram of the bottom plate guide wall mold in Example 1;

[0040] Figure 6 This is a top-down exploded view of the bottom plate guide wall mold in Example 1;

[0041] Figure 7 This is a schematic diagram of the box-shaped inner mold in Example 1;

[0042] Figure 8 This is a schematic diagram of the lateral explosion of the box-shaped inner mold in Example 1;

[0043] Figure 9 This is a schematic diagram of the demolding structure in Example 1;

[0044] Figure 10 This is a schematic diagram of the subsidence angle compensation module in Example 1;

[0045] Figure 11 This is a schematic diagram showing the fit between the sunken section angle compensation mold and the box-shaped outer mold in Example 1;

[0046] Figure 12 This is a schematic diagram showing the fit between the sunken section angle compensation mold and the box-shaped inner mold in Example 1;

[0047] Figure 13 This is a schematic diagram of the horizontal rotation angle compensation module in Example 1;

[0048] Figure 14 This is a schematic diagram showing the fit between the horizontal rotation angle compensation mold and the box-shaped inner mold in Example 1;

[0049] Figure 15This is a cross-sectional schematic diagram of the main body of the expansion joint integrated installation module in Example 2;

[0050] Figure 16 This is a cross-sectional schematic diagram of the U-shaped steel channel component and the grout-stopping sponge component in Example 2;

[0051] Figure 17 This is a cross-sectional schematic diagram of the mounting plate in Example 2;

[0052] Figure 18 This is a cross-sectional schematic diagram of the anti-leakage steel plate assembly in Example 2;

[0053] Figure 19 This is a flowchart illustrating a construction method for an integrated utility tunnel in Example 3;

[0054] Figure 20 This is a schematic diagram of the final cross-section of the pipe gallery obtained in Example 3. Detailed Implementation

[0055] To further understand the content of this invention, the invention will be described in detail with reference to the embodiments. It should be understood that the embodiments are merely illustrative and not limiting of the invention.

[0056] Example 1

[0057] Considering that integrated utility tunnels do not extend in a straight line underground, but rather have vertical sloping structures and horizontal corner structures, and also require the installation of expansion joints, openings, and other structures, this embodiment provides a mold device for the construction of integrated utility tunnels to achieve the casting and shaping of the tunnels. This device offers various molds to meet the needs of different casting structures for integrated utility tunnels.

[0058] For ease of description, in this embodiment, the straight section of the integrated utility tunnel is referred to as the standard section, the sloping section of the integrated utility tunnel in the vertical direction is referred to as the sunken section, and the corner section of the integrated utility tunnel in the horizontal direction is referred to as the corner section. At the same time, expansion joint structures and opening structures are also provided at the integrated utility tunnel. In addition, the integrated utility tunnel is a reinforced concrete box culvert structure, which has a bottom slab, a wall section and a top slab. The wall section includes the lower guide wall section and the upper side wall section.

[0059] The mold device for construction of integrated utility tunnel provided in this embodiment includes a box-shaped outer mold 10, a bottom plate guide wall mold 20, a box-shaped inner mold 30, a split mold, a sunken section angle compensation mold 50, a horizontal rotation angle compensation mold 60, and an expansion joint integrated installation module 70.

[0060] Among them, the bottom plate guide wall mold 20 is used to cooperate with the box-shaped outer mold 10 to form the casting cavity of the bottom plate and guide wall of the integrated pipe gallery;

[0061] Among them, the inner box mold 30 is used to cooperate with the outer box mold 10 to form the casting cavity for the wall and top slab of the integrated pipe gallery;

[0062] Among them, the demolding is used to form a casting cavity with an orifice structure in conjunction with the box-shaped outer mold 10;

[0063] Among them, the angle compensation mold 50 of the sinking section is used to cooperate with the outer mold 10 of the box type, the bottom plate guide wall mold 20 and the inner mold 30 of the box type to form the casting cavity of the sinking section;

[0064] Among them, the horizontal rotation angle compensation mold 60 is used to cooperate with the box-shaped outer mold 10, the bottom plate guide wall mold 20 and the box-shaped inner mold 30 to form the casting cavity of the corner section;

[0065] The expansion joint integrated installation module 70 is used to be embedded into the casting cavity to form an expansion joint structure after concrete is poured.

[0066] Based on the above structure, a complete mold system solution is provided for integrated utility tunnels, which realizes convenient construction of integrated utility tunnels and has good versatility.

[0067] Seen in Figure 1-3 The box-shaped outer mold 10 has an outer mold skeleton 11. One side of the outer mold skeleton 11 forms an outer mold surface 12 by setting a plate, and the other side of the outer mold skeleton 11 forms a mounting surface 13. Multiple connecting pieces 15 are set at both ends of the outer mold skeleton 11 in the horizontal direction, and multiple mounting screws 14 are set at the mounting surface 13.

[0068] Through the above, the structure of the box-shaped outer mold 10 can be better realized. The setting of the connecting piece 15 is conducive to the splicing of the box-shaped outer molds 10, and the setting of the mounting screw 14 is conducive to the installation and cooperation of the box-shaped outer mold 10 with the support structure in the foundation pit.

[0069] The connecting piece 15 can be made of perforated steel plate, which is beneficial for forming a fit with components such as bolts.

[0070] In this embodiment, the box-shaped outer mold 10 is generally a rectangular box, and its outer mold frame 11 can be made of steel. The outer mold frame 11 can be covered with metal plates on both sides of its thickness to form the outer mold surface 12 and the mounting surface 13. The outer mold surface 12 can also serve as a support for laying the waterproof membrane on the floor, and vertical ribs can be installed at the mounting surface 13 to meet the stability and strength requirements of construction.

[0071] Seen in Figure 4-6The base plate guide wall mold 20 includes a left box module 21 and a right box module 22, which are detachably connected by a guide wall mold frame component 23. The bottom and outer sides of the left box module 21 and the right box module 22 are formed by setting plates to form a guide wall model surface 24, and the top surface of the left box module 21 and the right box module 22 is formed by setting plates to form a protective surface 25. Multiple connecting pieces 15 are provided at both ends of the left box module 21 and the right box module 22 in the horizontal direction.

[0072] Through the above, the structure of the bottom plate guide wall mold 20 can be better realized.

[0073] In this embodiment, the bottom plate guide wall mold is divided into two box modules, left and right. The frame of the bottom plate guide wall mold box is made of steel. The sides, top and bottom of the guide wall mold are covered with steel plates. The side steel plates can serve as the facade template of the pipe gallery low wall, the bottom steel plate serves as the upper surface cover plate of the pipe gallery bottom plate concrete, and the top steel plate serves as the walking platform for construction personnel. The bottom of the bottom plate guide wall mold has two types: right angle and chamfer.

[0074] Seen in Figure 7-8 The box-shaped inner mold 30 includes a left box-shaped inner mold 31 and a right box-shaped inner mold 32, which are detachably connected by an inner mold frame component 33. A demolding cover plate 34 is detachably provided between the upper parts of the left box-shaped inner mold 31 and the right box-shaped inner mold 32, and an inner mold connecting frame 35 is provided between the upper parts of the left box-shaped inner mold 31 and the right box-shaped inner mold 32. The top and outer sides of the left box-shaped inner mold 31 and the right box-shaped inner mold 32 are provided with plates to form an inner mold surface 36. Multiple connecting pieces 15 are provided at both ends of the left box-shaped inner mold 31 and the right box-shaped inner mold 32 in the transverse direction.

[0075] In this embodiment, the box-shaped inner mold can be divided into left and right box modules. The width and height of the inner mold are made according to the inner diameter of the pipe gallery. The box frame of the inner mold is made of steel profiles, and the outer side and top of the box frame are covered with steel plates, forming the inner mold of the pipe gallery wall. The left and right box modules are connected to form an inner mold unit through connecting frames. Standard connectors are installed at both ends of the inner mold unit to connect and fix adjacent inner mold units. The top mold part of the inner mold has two types: right angle and chamfer.

[0076] Among them, the demolding cover plate 34 is a single-sided flat sealing plate of the steel frame, and can be installed on the steel frame with a mold having a tensioning and expansion device, specifically installed in the middle gap position of the upper plane of the inner mold.

[0077] Seen in Figure 9The mold splitting includes a first pair of mold splitting 41 and a second pair of mold splitting 42 for pairing. Both the first pair of mold splitting 41 and the second pair of mold splitting 42 are right-angled triangles. The sides of the first pair of mold splitting 41 and the second pair of mold splitting 42 are formed by setting plates to form the mold splitting surface 43. The sides of the first pair of mold splitting 41 and the second pair of mold splitting 42 are detachably connected by mold splitting connectors 44.

[0078] By demolding, it is possible to cast and form opening structures such as ventilation openings, hoisting openings, personnel entrances and exits, exhaust vents, and intersections. These structures can be made using structural steel and steel plates, can be disassembled diagonally and connected using connectors, and have advantages such as simple installation, accurate dimensions, and smooth surface.

[0079] Seen in Figure 10 The sinking section angle compensation mold 50 includes a sinking section angle compensation mold body 51. The sinking section angle compensation mold body 51 has a first end face 52 and a second end face 53 at both ends. The outer periphery of the sinking section angle compensation mold body 51 forms a first side face 54, a second side face 55, a third side face 56 and a fourth side face 57 connected in sequence. The second side face 55 is inclined. The sinking section angle compensation mold surface 58 is formed by setting plates at the first end face 52, the first side face 54 and the second side face 55.

[0080] Seen in Figure 11 and Figure 12 By cooperating with the angle compensation mold 50 of the sinking section and the box-shaped outer mold 10 and the box-shaped inner mold 30, the pouring construction of the sinking section can be better realized. It can be used to compensate for the missing corner that appears at the intersection of the corner positions of the slope section.

[0081] Seen in Figure 13 The horizontal rotation angle compensation mold 60 includes a left box-shaped horizontal rotation angle compensation mold 61 and a right box-shaped horizontal rotation angle compensation mold 62. The left box-shaped horizontal rotation angle compensation mold 61 and the right box-shaped horizontal rotation angle compensation mold 62 are detachably connected by a horizontal rotation angle compensation mold frame component 63. An irregularly shaped demolding cover plate 64 is detachably provided between the upper parts of the left box-shaped horizontal rotation angle compensation mold 61 and the right box-shaped horizontal rotation angle compensation mold 62. The top surface and outer surface of the left box-shaped horizontal rotation angle compensation mold 61 and the right box-shaped horizontal rotation angle compensation mold 62 are formed by providing plates to form a horizontal rotation angle compensation model surface. Multiple connecting pieces 15 are provided at both ends of the left box-shaped horizontal rotation angle compensation mold 61 and the right box-shaped horizontal rotation angle compensation mold 62 in the horizontal direction.

[0082] Seen in Figure 14 The horizontal rotation angle compensation mold 60 can better realize the pouring construction of the corner section.

[0083] Example 2

[0084] Seen in Figure 15-18 This embodiment provides a specific implementation of an integrated installation module for expansion joints; it includes a main body of the integrated installation module, the outline of which is consistent with the cross-section of the integrated utility tunnel and is used to form an expansion joint structure after concrete is poured; the main body of the integrated installation module includes a skeleton 71, which has a front side and a rear side corresponding to the cross-section of adjacent sections of the integrated utility tunnel, and an outer side corresponding to the outer wall of the integrated utility tunnel; an expansion joint plate assembly is set at the front side of the skeleton 71 through a plate mounting frame assembly, and a waterproof assembly is set at the outer side of the skeleton 71.

[0085] The expansion joint integrated installation module provided in this embodiment can be installed at the expansion joint location of the integrated utility tunnel. It integrates the relevant workpieces required for the expansion joint and hoists them as a whole to the expansion joint location. The expansion joint structure can be formed by pouring concrete, which helps to improve work efficiency.

[0086] The waterproof component includes a waterproof sheet 741, a mounting plate 742 is provided on the rear side of the waterproof sheet 741 corresponding to the frame body 71, a first angle steel component 743 is welded on the frame body 71 corresponding to the mounting plate 742, and the mounting plate 742 and the first angle steel component 743 are connected by a first bolt connector 744.

[0087] Among them, a waterproof layer 745 is laid on the outer side of the waterproof board 741.

[0088] Among them, the inner side of the waterproof sheet 741 has a T-shaped protrusion structure 746.

[0089] This allows for better integration of waterproof panels 741 made of materials such as polyurethane at the expansion joints.

[0090] The plate mounting frame assembly includes a plate mounting outer frame 721 and a plate mounting inner frame 722 welded to the frame body 71. Both the plate mounting outer frame 721 and the plate mounting inner frame 722 are U-shaped and form corresponding plate mounting grooves. The plate mounting outer frame 721 is close to the outside of the frame body 71, and the plate mounting inner frame 722 is far away from the outside of the frame body 71.

[0091] The expansion joint plate assembly includes an outer expansion joint plate 723 disposed in the corresponding plate mounting groove of the outer plate mounting frame 721, and an inner expansion joint plate 724 disposed in the corresponding plate mounting groove of the inner plate mounting frame 722.

[0092] A waterstop assembly 75 is provided between the outer frame 721 and the inner frame 722 of the plate mounting. The waterstop assembly 75 has a lateral dimension not less than that of the waterproof plate 741.

[0093] This achieves a better integration of the embedded waterstop.

[0094] Among them, a side-leakage prevention steel plate assembly 747 is provided between the inner side of the plate mounting frame 721 and the waterproof plate 741. The side-leakage prevention steel plate assembly 747 has a first bending part for connecting with the mounting frame 721 and a second bending part for connecting with the waterproof plate 741. A third bending part is formed between the first bending part and the second bending part. The first bending part and the third bending part are set at 90°. The front side of the second bending part and the front side of the third bending part are set at an obtuse angle.

[0095] This effectively prevents problems such as lateral leakage in the expansion joints after molding.

[0096] The waterstop assembly 75 is welded to the rear of the frame 71, and its front is connected to the front of the waterproof sheet 741. A mounting plate 742 is installed on the front of the waterproof sheet 741, and a second angle steel assembly 749 is connected to the mounting plate 742 via a second bolt connector 748. A connecting rod 751 is installed between the second angle steel assembly 749 and the front of the waterproof sheet 741. This design allows for optimal installation of the waterstop assembly 75.

[0097] The inner frame 722 of the plate installation includes a U-shaped steel channel component 731 with an opening facing the inside of the skeleton body 71. The channel of the U-shaped steel channel component 731 is filled with a grout-stopping sponge component 732. This further improves the sealing effect at the expansion joint.

[0098] The skeleton 71 is constructed by welding steel bars, thus enabling it to form a reinforced concrete structure more effectively with the concrete.

[0099] Among them, the waterstop assembly 75 uses a steel-edged rubber waterstop.

[0100] Among them, the mounting plate 742 is S-shaped.

[0101] Example 3

[0102] Seen in Figure 19 Based on the templates provided in Embodiments 1 and / or 2, this embodiment provides a method for constructing a comprehensive utility tunnel, which is used to construct a supported foundation pit to form a utility tunnel structure, wherein the utility tunnel structure is a reinforced concrete box culvert structure; it includes,

[0103] The subbase construction involves forming a plain concrete subbase at the bottom of the foundation pit.

[0104] Waterproof membrane pre-laying: Waterproof membrane is laid on the surface of the outer mold 10 of the box type;

[0105] Box-shaped outer mold 10 installation: Hoist the box-shaped outer mold 10 to the preset position and install it;

[0106] Construction of the bottom slab reinforcement cage and wall reinforcement cage: The bottom slab reinforcement cage and wall reinforcement cage are formed by binding in the area of ​​the bottom slab and wall of the pipe gallery structure corresponding to the foundation pit.

[0107] Install the bottom plate guide wall formwork 20, and install the bottom plate guide wall formwork 20 on the inner side of the bottom plate reinforcement cage and the wall reinforcement cage.

[0108] The bottom slab and guide wall sections of the pipe gallery structure are formed by pouring concrete.

[0109] Remove 20mm of the base plate guide wall formwork;

[0110] Install box-type inner mold 30;

[0111] The construction of the top slab steel reinforcement cage involves binding the top slab steel reinforcement cage in the area of ​​the top slab corresponding to the pipe gallery structure in the foundation pit.

[0112] The top slab and side walls of the pipe gallery structure are formed by pouring concrete.

[0113] Based on the above, the casting and molding of the pipe gallery structure can be achieved better.

[0114] Remove 30 mm of the inner mold of the box-shaped structure.

[0115] The foundation layer provides a flat construction surface with an elevation matching the design values ​​during the construction of the utility tunnel structure. The waterproof membrane bonds with the concrete surface of the utility tunnel structure to form a waterproof layer, effectively preventing groundwater intrusion. Adjacent molds of the same type can be connected via connecting pieces 15 and threaded connectors. The box-type inner mold 30 can be mounted on the bottom slab of the utility tunnel structure via a support platform, facilitating subsequent dismantling.

[0116] It is understood that the solution provided by this invention does not involve the excavation and support construction of the foundation pit; the solution provided is based on a foundation pit that has already been supported. In actual construction, protective components such as bored piles or Larssen IV sheet piles can be used on both sides of the foundation pit to form protective members. Circular steel pipe members located at the pit opening can also be installed between the protective members on both sides of the foundation pit to form support. The outer side of the box-shaped outer formwork 10 can be fixed to the protective members.

[0117] In addition, the construction method of this embodiment also includes,

[0118] After the box-shaped outer mold 10 is installed, the expansion joint integrated installation module 70 is installed by hoisting it to the preset position and installing it. Based on this, the formation of the expansion joint structure can be achieved more effectively.

[0119] It is readily understood that those skilled in the art can combine, split, or reorganize the embodiments provided in this application to obtain other embodiments, all of which do not exceed the protection scope of this application.

[0120] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the embodiments shown are only part of the embodiments of the present invention. The actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A mold device for construction of integrated utility tunnel, comprising a box-shaped outer mold (10), a bottom plate guide wall mold (20), a box-shaped inner mold (30), a split mold, a sunken section angle compensation mold (50), a horizontal rotation angle compensation mold (60), and an expansion joint integrated installation module (70). in, The bottom plate guide wall mold (20) is used in conjunction with the box-type outer mold (10) to form the casting cavity of the bottom plate and guide wall of the integrated pipe gallery; Among them, the box-shaped inner mold (30) is used to cooperate with the box-shaped outer mold (10) to form the casting cavity for the wall and top slab of the integrated pipe gallery; Among them, the demolding is used to form a casting cavity with a box-type outer mold (10) to form an orifice structure; Among them, the sinking section angle compensation mold (50) is used to cooperate with the box-shaped outer mold (10), the bottom plate guide wall mold (20) and the box-shaped inner mold (30) to form the casting cavity of the sinking section; Among them, the horizontal turning angle compensation mold (60) is used to cooperate with the box-shaped outer mold (10), the bottom plate guide wall mold (20) and the box-shaped inner mold (30) to form the casting cavity of the corner section; Among them, the expansion joint integrated installation module (70) is used to be embedded into the casting cavity to form an expansion joint structure after concrete is poured; The sinking section angle compensation mold (50) includes a sinking section angle compensation mold body (51). The sinking section angle compensation mold body (51) has a first end face (52) and a second end face (53) at both ends. The outer periphery of the sinking section angle compensation mold body (51) forms a first side face (54), a second side face (55), a third side face (56) and a fourth side face (57) connected in sequence. The second side face (55) is inclined. The sinking section angle compensation model surface (58) is formed by setting plates at the first end face (52), the first side face (54) and the second side face (55). The horizontal rotation angle compensation mold (60) includes a left box-type horizontal rotation angle compensation mold (61) and a right box-type horizontal rotation angle compensation mold (62). The left box-type horizontal rotation angle compensation mold (61) and the right box-type horizontal rotation angle compensation mold (62) are detachably connected by a horizontal rotation angle compensation mold frame component (63). The upper parts of the left box-type horizontal rotation angle compensation mold (61) and the right box-type horizontal rotation angle compensation mold (62) are detachably provided with irregular demolding cover plates (64). The top surface and outer side surface of the left box-type horizontal rotation angle compensation mold (61) and the right box-type horizontal rotation angle compensation mold (62) are provided with plates to form a horizontal rotation angle compensation model surface. Multiple connecting pieces (15) are provided at both ends of the left box-type horizontal rotation angle compensation mold (61) and the right box-type horizontal rotation angle compensation mold (62) in the horizontal direction.

2. The mold device for integrated utility tunnel construction according to claim 1, characterized in that: The box-shaped outer mold (10) has an outer mold skeleton (11). One side of the outer mold skeleton (11) forms an outer mold surface (12) by setting a plate, and the other side of the outer mold skeleton (11) forms an installation surface (13). Multiple connecting pieces (15) are set at both ends of the outer mold skeleton (11) in the horizontal direction, and multiple installation screws (14) are set at the installation surface (13).

3. The mold device for integrated utility tunnel construction according to claim 2, characterized in that: The bottom plate guide wall mold (20) includes a left box module (21) and a right box module (22). The left box module (21) and the right box module (22) are detachably connected by the guide wall mold frame component (23). The bottom and outer sides of the left box module (21) and the right box module (22) are formed by setting plates to form the guide wall model surface (24). The top surface of the left box module (21) and the right box module (22) is formed by setting plates to form the protective surface (25). The left box module (21) and the right box module (22) are provided with multiple connecting pieces (15) at both ends in the horizontal direction.

4. The mold device for integrated utility tunnel construction according to claim 3, characterized in that: The box-shaped inner mold (30) includes a left box-shaped inner mold (31) and a right box-shaped inner mold (32). The left box-shaped inner mold (31) and the right box-shaped inner mold (32) are detachably connected by an inner mold frame component (33). A demolding cover plate (34) is detachably provided between the upper parts of the left box-shaped inner mold (31) and the right box-shaped inner mold (32). An inner mold connecting frame (35) is provided between the upper parts of the left box-shaped inner mold (31) and the right box-shaped inner mold (32). The top and outer sides of the left box-shaped inner mold (31) and the right box-shaped inner mold (32) are provided with plates to form an inner mold surface (36). Multiple connecting pieces (15) are provided at both ends of the left box-shaped inner mold (31) and the right box-shaped inner mold (32) in the transverse direction.

5. The mold device for integrated utility tunnel construction according to claim 4, characterized in that: The mold splitting includes a first pair of mold splitting (41) and a second pair of mold splitting (42) for pairing. Both the first pair of mold splitting (41) and the second pair of mold splitting (42) are right-angled triangles. The sides of the first pair of mold splitting (41) and the second pair of mold splitting (42) are formed by setting plates to form the mold splitting surface (43). The sides of the first pair of mold splitting (41) and the second pair of mold splitting (42) are detachably connected by mold splitting connectors (44).

6. The mold device for integrated utility tunnel construction according to claim 5, characterized in that: The expansion joint integrated installation module (70) includes an expansion joint integrated installation module body. The outline of the expansion joint integrated installation module body is consistent with the cross section of the integrated utility tunnel and is used to form an expansion joint structure after concrete is poured. The expansion joint integrated installation module body includes a skeleton (71). The skeleton (71) has a front side and a rear side corresponding to the cross section of the adjacent section of the integrated utility tunnel, and an outer side corresponding to the outer wall of the integrated utility tunnel. The expansion joint plate assembly is set at the front side of the skeleton (71) through the plate installation frame assembly, and a waterproof assembly is set at the outer side of the skeleton (71).

7. A method for constructing a utility tunnel, used to construct a supported foundation pit to form a utility tunnel structure, wherein the utility tunnel structure is a reinforced concrete box culvert structure; the method is implemented using the mold device for constructing a utility tunnel as described in any one of claims 1-6, comprising, The subbase construction involves forming a plain concrete subbase at the bottom of the foundation pit. Waterproof membrane is pre-laid on the surface of the box-shaped outer mold (10); Box-shaped outer mold (10) installation: The box-shaped outer mold (10) is hoisted to the preset position and installed; Construction of the bottom slab reinforcement cage and wall reinforcement cage: The bottom slab reinforcement cage and wall reinforcement cage are formed by binding in the area of ​​the bottom slab and wall of the pipe gallery structure corresponding to the foundation pit. Install the bottom plate guide wall formwork (20) and install the bottom plate guide wall formwork (20) on the inner side of the bottom plate reinforcement cage and the wall reinforcement cage. The bottom slab and guide wall sections of the pipe gallery structure are formed by pouring concrete. Remove the bottom plate guide wall formwork (20); Install the box-type inner mold (30); The construction of the top slab steel reinforcement cage involves binding the top slab steel reinforcement cage in the area of ​​the top slab corresponding to the pipe gallery structure in the foundation pit. The top slab and side walls of the pipe gallery structure are formed by pouring concrete. Remove the inner mold of the box (30).

8. The method for constructing an integrated utility tunnel according to claim 7, characterized in that; It also includes, After the box-shaped outer mold (10) is installed, the expansion joint integrated installation module (70) is installed. The expansion joint integrated installation module is hoisted to the preset position and installed.

Images