A new type of diaphragm wall joint for special-shaped interfaces and its construction method

Abstract

The embodiment of the present application provides a novel diaphragm wall joint for special-shaped interfaces and a construction method, which relates to the field of diaphragm walls. The novel diaphragm wall joint for special-shaped interfaces includes: a special-shaped joint component and a transfer connection component. Insert two lifting lugs into both sides of the lifting hole respectively, then sequentially pass a connecting pin through one of the lifting lugs and the lifting hole, and after the connecting pin passes through the lifting hole, it is threadedly connected to the other lifting lug. Then connect the lifting piece to the lifting ring. Install multiple transfer connection components according to the above steps, and then lift it by a lifting device. The lifting piece and the special-shaped joint piece are transfer-connected through the lifting ring and the lifting lugs, reducing the wear and cut of the lifting piece caused by the right angles at the corners of the special-shaped joint piece, effectively improving the problem that when lifting the diaphragm wall joint, there is a lack of a corresponding transfer connection structure, and the joint and the steel wire rope are prone to wear each other, especially the wear of the steel wire rope is relatively serious.

Description

Technical Field

[0001] This application relates to the technical field of diaphragm walls, and more particularly, to a new type of diaphragm wall joint for special-shaped interfaces and a construction method therefor. Background Art

[0002] The common construction methods of diaphragm walls are as follows: surveying, building guide walls, fabricating steel reinforcement cages, preparing slurry, excavating trenches, cleaning trenches, installing diaphragm wall joints, hoisting steel reinforcement cages, installing conduits and pouring concrete, and removing diaphragm wall joints, etc. Since the construction of diaphragm walls is carried out in segments, the connection of each segment requires the use of joints to reduce seepage problems. Common diaphragm wall joints include lock pipe joints, I-beam joints, and cross steel plate joints. In related technologies, when the diaphragm wall joint is lowered into the trench, the steel wire rope of the hoisting machine and the diaphragm wall joint are connected by a lifting lock. The corners of the diaphragm wall joint are right angles, but both the steel wire rope and the diaphragm wall joint are located inside the lifting lock, lacking a corresponding intermediate connection structure, which is prone to mutual wear, especially serious wear on the steel wire rope. Summary of the Invention

[0003] This application aims to solve at least one of the technical problems existing in the prior art. For this purpose, this application provides a new type of diaphragm wall joint for special-shaped interfaces and a construction method therefor. The lifting member and the special-shaped joint member of the new type of diaphragm wall joint for special-shaped interfaces are connected through a lifting ring and a lifting ear plate for intermediate connection, which has the effect of reducing the wear and cut of the right angle at the corner of the special-shaped joint member on the lifting member.

[0004] In a first aspect, a new type of diaphragm wall joint for special-shaped interfaces according to an embodiment of this application includes: a special-shaped joint assembly and an intermediate connection assembly.

[0005] The special-shaped joint assembly includes a special-shaped joint member, and a plurality of lifting holes are opened at the upper end of the special-shaped joint member. The intermediate connection assembly is provided in a plurality of numbers, and the intermediate connection assembly includes a connecting plate, a lifting ear plate, a connecting pin, a lifting ring, and a lifting member. Two lifting ear plates are provided, and the two lifting ear plates are oppositely arranged on the lower side of the connecting plate. The connecting pin passes through one of the lifting ear plates and is fixedly connected to the other lifting ear plate. The connecting pin passes through the lifting hole, the lifting ring is fixedly connected to the upper side of the connecting plate, and the lifting member is connected to the lifting ring.

[0006] According to some embodiments of this application, the lifting holes are arranged in pairs, the connecting pins are arranged in pairs, and the two connecting pins arranged in pairs are respectively oppositely connected to the two lifting ear plates.

[0007] According to some embodiments of the present application, the lifting lug plate includes a plate body, and two connecting holes are oppositely formed on the plate body. Two paired connecting pins are respectively connected to the connecting holes on the two plate bodies.

[0008] According to some embodiments of the present application, the connecting pin includes a connecting rod and a rotating part. One end of the rotating part is fixedly connected to one end of the connecting rod, and the other end of the connecting rod is provided with a thread. The connecting rod passes through one of the connecting holes, and one end of the connecting rod is threadedly connected to the other connecting hole through the thread.

[0009] According to some embodiments of the present application, a pin hole is formed at the end of the connecting rod with the thread, and a split pin is arranged in the pin hole.

[0010] According to some embodiments of the present application, the lifting member and the sling are connected by a lifting shackle.

[0011] According to some embodiments of the present application, the lifting member includes a lifting wire rope. One end of the lifting wire rope is connected by bending through a wire rope clip or pressing. A hanging buckle is formed at the end of one end of the lifting wire rope, and the hanging buckle is connected to the lifting shackle.

[0012] According to some embodiments of the present application, a thimble is arranged in the hanging buckle.

[0013] According to some embodiments of the present application, both the lifting lug plate and the sling penetrate through the connecting plate and are fixed by welding.

[0014] According to some embodiments of the present application, the special-shaped joint piece includes two joint boxes, two channel steels, two connecting boxes and a telescopic hinge part. The joint box includes a back plate, side plates and a plurality of first hinge sleeves. The side plates and the connecting boxes are respectively fixedly connected to both ends of one side of the back plate. The plurality of first hinge sleeves are fixedly connected to the ends of the side plates. The first hinge sleeves at the ends of the two side plates are hinged to each other through a rotating shaft. The connecting box includes a box body, a lower limiting block, a mounting plate and an upper limiting block. A receiving groove is formed through the side of the box body away from the back plate. The lower limiting block is fixedly inserted into the inside of the bottom end of the box body. The upper limiting block is fixedly connected to the lower side of the mounting plate. The upper limiting block is inserted into the inside of the top end of the box body. The mounting plate is fixedly connected to the top end of the box body. The telescopic hinge part includes two hinge plates, two sliding rods and a second hinge sleeve. One ends of the two hinge plates are hinged to each other through the second hinge sleeve and a rotating shaft. The two sliding rods are respectively fixedly connected to the other ends of the two hinge plates. The two sliding rods are respectively slidably connected to the inside of the connecting box. The hinge plates slide through the receiving groove.

[0015] According to some embodiments of the present application, on both sides of the two side plates near one end of the first hinge sleeve, first mud scraping plates are fixedly connected, and the end of the first mud scraping plate is attached to the outer wall of the first hinge sleeve on one of the opposite side plates.

[0016] According to some embodiments of the present application, on both sides of the hinge plate near one end of the second hinge sleeve, second mud scraping plates are fixedly connected, and the end of the second mud scraping plate is attached to the outer wall of the second hinge sleeve on one of the opposite hinge plates.

[0017] According to some embodiments of the present application, a reinforcement assembly is further included. The reinforcement assembly includes a first telescopic reinforcement member and a second telescopic reinforcement member. The first telescopic reinforcement member and the second telescopic reinforcement member have the same structure. Two first hinge rods are oppositely arranged on the mounting plate at the top of the two connection boxes. The first telescopic reinforcement member includes two reinforcement rods, a hinge nut, a first limit nut, and a second limit nut. The reinforcement rod includes a connection block and a reinforcement rod body. Hinge holes are penetrated through the upper and lower sides of the connection block. The first hinge rod slides through the hinge hole. The first limit nut is threadedly sleeved on the first hinge rod, and the first limit nut is attached to the upper side of the connection block. Slideway holes are penetrated through the front and rear sides of one end of the connection block. The reinforcement rod body is fixedly connected to the side wall of the connection block away from the slideway hole. The reinforcement rod body on one reinforcement rod passes through the slideway hole on the other reinforcement rod. The two reinforcement rods are slidably connected to each other through the reinforcement rod body and the slideway hole. The first limit nut and the second limit nut are both threadedly sleeved on the reinforcement rod body, and the first limit nut and the second limit nut are respectively pressed against the front and rear sides of the connection block. Two second hinge rods are oppositely arranged at the top of the two side plates. The second telescopic reinforcement member is connected between the two second hinge rods.

[0018] According to some embodiments of the present application, a limit block is fixedly connected to the end of the reinforcement rod body, and the slideway hole can block the limit block.

[0019] In a second aspect, a construction method for a new type of diaphragm wall joint for a special-shaped interface is carried out by using the new type of diaphragm wall joint for a special-shaped interface, and includes the following steps:

[0020] Groove excavation: For the construction of the diaphragm wall groove, a hydraulic grooving machine is used. The grooving is carried out by skip excavation. For each groove section, three-claw grooving is adopted. First, the two sides are excavated and then the middle is excavated. During the excavation process, the grooving verticality should be ensured, and the groove should be cleaned and inspected in time.

[0021] Fabrication of the special-shaped joint assembly: The special-shaped joint assembly is prefabricated in the factory. Welding is used between the channel steel and the back plate. The side plates are connected by two steel plates through a hinge-like structure, and the articulated plate is also connected by two steel plates through a hinge-like structure. The sliding rod at the end of the articulated plate is inserted into the connection box.

[0022] After the diaphragm wall joint is fabricated in the factory, the angle of the diaphragm wall joint is adjusted according to the on-site data to adapt to the special-shaped groove section. Specifically: adjust the angle between the two side plates. At the same time, the angle of the articulated plate also changes, and the length of the articulated plate extending into the connection box also changes, so as to make the angle of the two joint boxes.

[0023] Rotate the first limit nut so that the first limit nut moves along the reinforcement rod body. The two reinforcement rods slide along the slide holes on one of the opposite reinforcement rods respectively, so that the articulated hole corresponds to the first articulated rod. Insert the first articulated rod into the articulated hole, screw the articulated nut onto the first articulated rod, and limit the movement of the connection block through the articulated nut. Connect the second telescopic reinforcement member to the second articulated rod according to the installation method of the first telescopic reinforcement member. Limit the angle between the two articulated plates through the first telescopic reinforcement member, and limit the angle between the two side plates through the second telescopic reinforcement member, so as to achieve the purpose of fixing the angle of the two joint boxes.

[0024] Lifting of the diaphragm wall joint: When using the diaphragm wall joint for connection, double-crane lifting is used for cooperation. Multiple lifting points are set for both the main and auxiliary cranes. Insert the two lifting lugs into both sides of the lifting hole respectively. Then, pass the connection pin through one of the lifting lugs and the lifting hole in sequence. After the connection pin passes through the lifting hole, it is threadedly connected to the other lifting lug. Then, connect the lifting piece to the lifting ring. Install the transfer connection components at each lifting point according to the above steps, and then lift it by the lifting equipment.

[0025] After the special-shaped joint assembly is placed, pour concrete according to the designed diversion pipe. Before the concrete strength reaches the design requirements, carry out other non-adjacent panel construction. After the concrete strength reaches the requirements, carry out the adjacent groove excavation construction.

[0026] The beneficial effect of this application is: When in use, insert the two lifting lugs into both sides of the lifting hole respectively. Then, pass the connection pin through one of the lifting lugs and the lifting hole in sequence. After the connection pin passes through the lifting hole, it is threadedly connected to the other lifting lug. Then, connect the lifting piece to the lifting ring. Install multiple transfer connection components according to the above steps, and then lift it by the lifting equipment. During the lifting process, the lifting piece and the special-shaped joint piece are connected in the middle through the lifting ring and the lifting lug, reducing the wear and cut of the lifting piece by the right angle at the corner of the special-shaped joint piece, etc. Effectively improve the problem that when lifting the diaphragm wall joint, there is a lack of a corresponding transfer connection structure, and the joint and the steel wire rope are prone to wear each other, especially the wear of the steel wire rope is more serious.

[0027] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned by practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] To more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present application, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can also be obtained based on these drawings without creative efforts.

[0029] Figure 1 is a schematic three-dimensional structure diagram of a new type of diaphragm wall joint for a special-shaped interface according to an embodiment of the present application;

[0030] Figure 2 is a schematic three-dimensional structure diagram of a special-shaped joint assembly according to an embodiment of the present application;

[0031] Figure 3 is a schematic three-dimensional structure diagram of a transfer connection assembly according to an embodiment of the present application;

[0032] Figure 4 is a schematic three-dimensional structure diagram of a lifting lug plate according to an embodiment of the present application;

[0033] Figure 5 is a schematic three-dimensional structure diagram of a connecting pin according to an embodiment of the present application;

[0034] Figure 6 is a schematic three-dimensional structure diagram of a lifting member according to an embodiment of the present application;

[0035] Figure 7 is a schematic three-dimensional structure diagram at the joint box according to an embodiment of the present application;

[0036] Figure 8 is a schematic three-dimensional structure diagram of a telescopic hinge portion according to an embodiment of the present application;

[0037] Figure 9 is a schematic three-dimensional structure diagram of a reinforcement assembly according to an embodiment of the present application;

[0038] Figure 10 is a schematic three-dimensional structure diagram of a first telescopic reinforcement member and a second telescopic reinforcement member according to an embodiment of the present application;

[0039] Figure 11 is a schematic three-dimensional structure diagram of a reinforcement rod according to an embodiment of the present application.

[0040] Icons: 100 - Special-shaped joint assembly; 110 - Special-shaped joint piece; 111 - Joint box; 1111 - Back plate; 1112 - Side plate; 1113 - First hinge sleeve; 112 - Channel steel; 113 - Connection box; 1131 - Box body; 1132 - Accommodation groove; 1133 - Lower limit block; 1134 - Mounting plate; 1135 - Upper limit block; 114 - Telescopic hinge part; 1141 - Hinge plate; 1142 - Slide bar; 1143 - Second hinge sleeve; 1144 - Second mud scraper; 115 - First mud scraper; 120 - Lifting hole; 130 - First hinge rod; 140 - Second hinge rod; 200 - Transfer connection assembly; 210 - Connection plate; 220 - Lifting ear plate; 221 - Plate body; 222 - Connection hole; 230 - Connection pin; 231 - Connecting rod; 232 - Rotating part; 233 - Thread; 234 - Pin hole; 240 - Hoisting ring; 250 - Lifting piece; 251 - Lifting wire rope; 252 - Buckle; 253 - Heart-shaped ring; 260 - Lifting shackle; 300 - Reinforcement assembly; 310 - First telescopic reinforcement piece; 311 - Reinforcement rod; 3111 - Connection block; 3112 - Hinge hole; 3113 - Slideway hole; 3114 - Reinforcement rod body; 3115 - Limit block; 312 - Hinge nut; 313 - First limit nut; 314 - Second limit nut; 320 - Second telescopic reinforcement piece. Detailed implementation mode

[0041] Next, the technical solutions in the embodiments of the present application will be described with reference to the accompanying drawings in the embodiments of the present application.

[0042] To make the purpose, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0043] Next, a new type of diaphragm wall joint for special-shaped interfaces and a construction method according to an embodiment of the present application will be described with reference to the accompanying drawings.

[0044] As Figures 1-11 shown, a new type of diaphragm wall joint for special-shaped interfaces according to an embodiment of the present application includes: a special-shaped joint assembly 100 and a transfer connection assembly 200. The special-shaped joint assembly 100 is used to connect each unit wall segment into a complete diaphragm wall integrating anti-seepage and anti-load, and the transfer connection assembly 200 is used to transfer and connect the special-shaped joint assembly 100 and the lifting equipment.

[0045] As Figure 2As shown, the special-shaped joint assembly 100 includes a special-shaped joint piece 110. Multiple lifting holes 120 are provided at the upper end of the special-shaped joint piece 110. The lifting holes 120 can be set as needed to ensure the stability of lifting. The transfer connection assembly 200 is connected through the lifting holes 120 for lifting.

[0046] As Figure 3 shown, multiple transfer connection assemblies 200 are provided. The transfer connection assembly 200 includes a connecting plate 210, lifting lugs 220, connecting pins 230, a lifting ring 240 and a lifting member 250. Two lifting lugs 220 are provided. The two lifting lugs 220 are oppositely arranged on the lower side of the connecting plate 210. The connecting pin 230 passes through one lifting lug 220 and is fixedly connected to the other lifting lug 220. The connecting pin 230 passes through the lifting hole 120. The lifting ring 240 is fixedly connected to the upper side of the connecting plate 210, and the lifting member 250 is connected to the lifting ring 240. During use, the two lifting lugs 220 are respectively inserted into both sides of the lifting hole 120. Then the connecting pin 230 passes through one of the lifting lugs 220 and the lifting hole 120 in sequence. After the connecting pin 230 passes through the lifting hole 120, it is threadedly connected to the other lifting lug 220. Then the lifting member 250 is connected to the lifting ring 240. Install multiple transfer connection assemblies 200 according to the above steps, and then lift by a lifting device. During the lifting process, the lifting member 250 and the special-shaped joint piece 110 are transfer-connected through the lifting ring 240 and the lifting lugs 220, reducing the wear and cut of the right angle at the corner of the special-shaped joint piece 110 on the lifting member 250, etc., effectively improving the problem that when lifting the joint of the diaphragm wall, there is a lack of a corresponding transfer connection structure, and the joint and the steel wire rope are prone to wear each other, especially the wear of the steel wire rope is more serious. The lifting member 250 and the lifting ring 240 are connected through a lifting shackle 260. The lifting member 250 and the lifting ring 240 can be quickly connected through the lifting shackle 260.

[0047] As Figure 4 shown, the lifting holes 120 are arranged in pairs, and the connecting pins 230 are arranged in pairs. The two connecting pins 230 arranged in pairs are respectively oppositely connected to the two lifting lugs 220. The lifting lugs 220 and the lifting holes 120 are connected through the two connecting pins 230, enhancing the strength of the connection part.

[0048] The lifting lug 220 includes a plate body 221. Two connection holes 222 are oppositely provided on the plate body 221. The two connecting pins 230 arranged in pairs are respectively connected to the connection holes 222 on the two plate bodies 221, facilitating the installation of the connecting pins 230. The specific connection method of the two connecting pins 230 is as Figure 3As shown, the lifting lugs 220 and the lifting rings 240 both penetrate through the connecting plate 210 and are fixed by welding. The lifting lugs 220 and the lifting rings 240 pass through the connecting plate 210, enabling two-sided welding between the lifting lugs 220 and the connecting plate 210, and two-pass welding can also be performed on the lifting rings 240, enhancing the connection strength between the lifting lugs 220 and the lifting rings 240 and the connecting plate 210.

[0049] As Figure 5 shown, the connecting pin 230 includes a connecting rod 231 and a rotating part 232. One end of the rotating part 232 is fixedly connected to one end of the connecting rod 231. The other end of the connecting rod 231 is provided with a thread 233. The connecting rod 231 passes through one of the connecting holes 222, and one end of the connecting rod 231 is threadedly connected to the other connecting hole 222 through the thread 233. The connecting rod 231 sequentially passes through the connecting hole 222 and the lifting hole 120 on one of the lifting lugs 220, and then is threadedly connected into the connecting hole 222 on the other lifting lug 220 through the thread 233. A pin hole 234 is formed at the end of the connecting rod 231 with the thread 233. An open pin is provided in the pin hole 234 for protection to reduce the situation of the connecting rod 231 disengaging from the connecting hole 222.

[0050] As Figure 6 shown, the lifting member 250 includes a lifting wire rope 251. One end of the lifting wire rope 251 is bent and connected through a wire rope clip or pressing. A hanging buckle 252 is formed at the end of one end of the lifting wire rope 251. The hanging buckle 252 is connected to the lifting shackle 260. It is convenient to connect the lifting shackle 260 through the hanging buckle 252. A heart-shaped ring 253 is arranged inside the hanging buckle 252. The heart-shaped ring 253 is used for the end of the lifting wire rope 251 to be wound and tied, preventing the lifting wire rope 251 from being overly bent and worn, and can also be connected to other components.

[0051] As Figure 7 shown, the diaphragm wall joints in the related art cannot be applied to the special-shaped groove interfaces. To solve the problem of special-shaped groove interfaces, it is of great significance to develop a diaphragm wall joint with strong flexibility and good anti-seepage performance for diaphragm wall construction.

[0052] To solve the above technical problems, the further technical solution adopted by the present invention is as follows: The special-shaped joint member 110 includes two joint boxes 111, two channel steels 112, two connection boxes 113 and a telescopic hinge part 114. The joint box 111 includes a back plate 1111, side plates 1112 and a plurality of first hinge sleeves 1113. The side plates 1112 and the connection boxes 113 are respectively fixedly connected to both ends of one side of the back plate 1111. Among them, the side plates 1112 and the connection boxes 113 are respectively fixedly connected to both ends of one side of the back plate 1111 by welding. The plurality of first hinge sleeves 1113 are fixedly connected to the ends of the side plates 1112. Specifically, the first hinge sleeves 1113 and the side plates 1112 are fixedly connected by welding. The two channel steels 112 are fixedly connected to the sides of the two back plates 1111 away from the side plates 1112. The first hinge sleeves 1113 at the ends of the two side plates 1112 are hinged to each other through a rotating shaft. In this embodiment, the first hinge sleeves 1113 at the ends of the two side plates 1112 are inserted into each other and hinged through a rotating shaft. The connection box 113 includes a box body 1131, a lower limit block 1133, a mounting plate 1134 and an upper limit block 1135. A receiving groove 1132 is formed through the side of the box body 1131 away from the back plate 1111. The lower limit block 1133 is fixedly inserted into the inside of the bottom end of the box body 1131. Specifically, the lower limit block 1133 is fixedly inserted into the inside of the bottom end of the box body 1131 by welding. The upper limit block 1135 is fixedly connected to the lower side of the mounting plate 1134. The upper limit block 1135 is inserted into the inside of the top end of the box body 1131. The mounting plate 1134 is fixedly connected to the top end of the box body 1131. Preferably, the mounting plate 1134 is fixedly connected to the top end of the box body 1131 by bolts. First scraping plates 115 are fixedly connected to both sides of one end of the two side plates 1112 close to the first hinge sleeves 1113. The end of the first scraping plate 115 is attached to the outer wall of the first hinge sleeve 1113 on a relative side plate 1112. When the first hinge sleeves 1113 on the two side plates 1112 rotate relative to each other, the end of the first scraping plate 115 can scrape off the soil and concrete on the outer wall of the first hinge sleeve 1113, facilitating the relative rotation of the first hinge sleeves 1113 and reducing interference.

[0053] As Figure 8As shown, the telescopic hinge part 114 includes two hinge plates 1141, two sliding rods 1142 and a second hinge sleeve 1143. One ends of the two hinge plates 1141 are hinged to each other through the second hinge sleeve 1143 and a rotating shaft. The two sliding rods 1142 are fixedly connected to the other ends of the two hinge plates 1141 respectively. The two sliding rods 1142 are respectively slidably connected to the inside of the connection box 113, and the hinge plates 1141 slide through the accommodation groove 1132. First, according to the angle data of the special-shaped groove section on site, the angle between the two side plates 1112 is adjusted, and the angle of the hinge plate 1141 also changes accordingly. While the angle of the hinge plate 1141 changes, the sliding rod 1142 at the end of the hinge plate 1141 slides along the inside of the connection box 113, and the length of the hinge plate 1141 extending into the connection box 113 through the accommodation groove 1132 also changes, so that the angles of the two joint boxes 111, and further the angles of the two joint boxes 111 can adapt to special-shaped groove interfaces with different angles. The use flexibility of this special-shaped joint piece 110 is strong. In the special-shaped groove section, the connection shape of the end of the diaphragm wall unit section is changed through the channel steel 112, and clamping grooves are formed at the ends of each unit wall section, improving the anti-seepage performance and strength at the connection of each unit wall section, and connecting each unit wall section into a complete underground continuous wall integrating anti-seepage and anti-load. Second, when it is necessary to separately replace the joint box 111 and the telescopic hinge part 114, the connection bolts between the mounting plate 1134 and the top of the box body 1131 are removed, and the upper limit block 1135 is pulled out of the box body 1131. Then, the hinge plate 1141 and the sliding rod 1142 on the telescopic hinge part 114 can be pulled out of the box body 1131 to replace the telescopic hinge part 114. The rotating shaft hinged on the second hinge sleeve 1143 is pulled out, and the hinge plate 1141 and the sliding rod 1142 can be separately replaced. The rotating shaft hinged on the first hinge sleeve 1113 is pulled out, and the joint box 111 can be separately replaced. Second scraping plates 1144 are fixedly connected to both sides of one end of the hinge plate 1141 close to the second hinge sleeve 1143, and the ends of the second scraping plates 1144 are attached to the outer wall of the second hinge sleeve 1143 on a relative hinge plate 1141. When the second hinge sleeves 1143 on the two hinge plates 1141 rotate relative to each other, the ends of the second scraping plates 1144 can scrape off the soil and concrete on the outer wall of the second hinge sleeve 1143, facilitating the relative rotation of the second hinge sleeves 1143 and reducing interference.

[0054] As Figure 9 and Figure 10 shown, in the related art, the joint of the underground continuous wall with a special-shaped interface adapts to the special-shaped groove interface by changing the angle of the joint. However, after the angle of the underground continuous wall joint is changed, it is not easy to fix this angle, and during the hoisting process, the angle is prone to deflection, and then the joint of the underground continuous wall with a special-shaped interface and the special-shaped groove interface are misaligned.

[0055] To this end, through long-term practical research, the inventor has solved this technical problem. Specifically, the novel diaphragm wall joint with a special-shaped interface further includes a reinforcement component 300. The reinforcement component 300 includes a first telescopic reinforcement member 310 and a second telescopic reinforcement member 320. The first telescopic reinforcement member 310 and the second telescopic reinforcement member 320 have the same structure. Two first hinge rods 130 are oppositely arranged on the mounting plates 1134 at the tops of the two connection boxes 113. The first telescopic reinforcement member 310 includes two reinforcement rods 311, a hinge nut 312, a first limit nut 313, and a second limit nut 314.

[0056] As Figure 11As shown, the reinforcing rod 311 includes a connecting block 3111 and a reinforcing rod body 3114. Hinge holes 3112 are formed through the upper and lower sides of the connecting block 3111, and the first hinge rod 130 slides through the hinge holes 3112. The first limiting nut 313 is threadedly sleeved on the first hinge rod 130, and the first limiting nut 313 abuts against the upper side of the connecting block 3111. Slideway holes 3113 are formed through the front and rear sides of one end of the connecting block 3111, and the reinforcing rod body 3114 is fixedly connected to the side wall of the connecting block 3111 away from the slideway holes 3113. The reinforcing rod body 3114 on one reinforcing rod 311 passes through the slideway holes 3113 on another reinforcing rod 311. The two reinforcing rods 311 are slidably connected to each other through the reinforcing rod body 3114 and the slideway holes 3113. Both the first limiting nut 313 and the second limiting nut 314 are threadedly sleeved on the reinforcing rod body 3114. The first limiting nut 313 and the second limiting nut 314 are respectively pressed against the front and rear sides of the connecting block 3111. Two second hinge rods 140 are oppositely arranged at the tops of the two side plates 1112, and the second telescopic reinforcing member 320 is connected between the two second hinge rods 140. Rotate the first limiting nut 313 to move the first limiting nut 313 along the reinforcing rod body 3114. The two reinforcing rods 311 respectively slide along the slideway holes 3113 on a relatively one reinforcing rod 311, and the movement of the connecting block 3111 is restricted by the hinge nut 312. According to the changed angles of the two connector boxes 111, adjust the length of the first telescopic reinforcing member 310 to align the hinge holes 3112 with the first hinge rod 130. Insert the first hinge rod 130 into the hinge holes 3112, and screw the hinge nut 312 into the first hinge rod 130. Connect the second telescopic reinforcing member 320 to the second hinge rods 140 according to the installation method of the first telescopic reinforcing member 310. Restrict the angles of the two hinge plates 1141 through the first telescopic reinforcing member 310, and restrict the angle between the two side plates 1112 through the second telescopic reinforcing member 320, thereby achieving the purpose of fixing the angles of the two connector boxes 111. The new type of diaphragm wall joint with a special-shaped interface can stabilize the angle while changing the angle, reduce the angle deflection of the new type of diaphragm wall joint with a special-shaped interface during the hoisting process, and avoid the deviation of the docking between the new type of diaphragm wall joint with a special-shaped interface and the special-shaped groove interface. A limiting block 3115 is fixedly connected to the end of the reinforcing rod body 3114, and the slideway holes 3113 can block the limiting block 3115, thereby reducing the situation that the reinforcing rod body 3114 disengages from the slideway holes 3113 through the limiting block 3115.

[0057] In this embodiment, for the construction method of the new type of diaphragm wall joint with a special-shaped interface, it is carried out by using the new type of diaphragm wall joint with a special-shaped interface, including the following steps:

[0058] Groove section excavation: The hydraulic grooving machine is used for the grooving construction of the diaphragm wall. The grooving is carried out by skipping excavation. For each groove section, the three-claw grooving method is adopted. First, the two sides are excavated and then the middle part is excavated. During the excavation process, the grooving verticality should be ensured, and the groove should be cleaned and inspected in a timely manner.

[0059] Fabrication of the special-shaped joint assembly 100: The special-shaped joint assembly 100 is prefabricated in the factory. The channel steel 112 and the back plate 1111 are welded. The side plate 1112 is connected by two steel plates through a hinge-like structure. The articulated plate 1141 is also connected by two steel plates through a hinge-like structure. The slide bar 1142 at the end of the articulated plate 1141 is inserted into the connection box 113.

[0060] After the diaphragm wall joint is fabricated in the factory, the angle of the diaphragm wall joint is adjusted according to the on-site data to adapt to the special-shaped groove section. Specifically: adjust the angle between the two side plates 1112. At the same time, the angle of the articulated plate 1141 also changes, and the length of the articulated plate 1141 extending into the connection box 113 also changes, so as to adjust the angle of the two joint boxes 111.

[0061] Rotate the first limit nut 313 so that the first limit nut 313 moves along the reinforcement rod body 3114. The two reinforcement rods 311 slide along the slideway holes 3113 on one of the opposite reinforcement rods 311 respectively, so that the articulated hole 3112 corresponds to the first articulated rod 130. Insert the first articulated rod 130 into the articulated hole 3112, and screw the articulated nut 312 into the first articulated rod 130 to limit the movement of the connection block 3111 through the articulated nut 312. Connect the second telescopic reinforcement member 320 to the second articulated rod 140 according to the installation method of the first telescopic reinforcement member 310. Limit the angle between the two articulated plates 1141 through the first telescopic reinforcement member 310, and limit the angle between the two side plates 1112 through the second telescopic reinforcement member 320, so as to achieve the purpose of fixing the angle of the two joint boxes 111.

[0062] Lifting of the diaphragm wall joint: When using the diaphragm wall joint for connection, the double-crane lifting method is adopted for hoisting. Multiple lifting points are set for both the main crane and the auxiliary crane. Insert the two lifting lugs 220 into both sides of the lifting hole 120 respectively. Then, insert the connection pin 230 through one of the lifting lugs 220 and the lifting hole 120 in sequence. After the connection pin 230 passes through the lifting hole 120, it is threadedly connected to the other lifting lug 220. Then, connect the lifting member 250 to the lifting ring 240. Install the transfer connection assembly 200 at each lifting point according to the above steps, and then hoist it by the hoisting equipment.

[0063] After the special-shaped joint assembly 100 is placed, concrete is poured according to the designed diversion pipe. Other non-adjacent sections are constructed before the concrete strength reaches the design requirements. After the concrete strength reaches the requirements, the adjacent groove excavation construction is carried out.

[0064] Specifically, the working principle of the novel diaphragm wall joint and construction method for special-shaped interfaces is as follows: During use, two lifting lugs 220 are respectively inserted on both sides of the lifting holes 120. Then, the connecting pin 230 passes through one of the lifting lugs 220 and the lifting hole 120 in sequence. After the connecting pin 230 passes through the lifting hole 120, it is threadedly connected to the other lifting lug 220. Next, the lifting member 250 is connected to the lifting ring 240. Multiple transfer connection components 200 are installed according to the above steps, and then lifted by a lifting device. During the lifting process, the lifting member 250 and the special-shaped joint member 110 are transfer-connected through the lifting ring 240 and the lifting lugs 220, reducing the wear and cut of the right angle at the corners of the special-shaped joint member 110 on the lifting member 250, etc. It effectively improves the problem that when lifting the diaphragm wall joint, there is a lack of a corresponding transfer connection structure, and the joint and the steel wire rope are prone to abrasion, especially the abrasion of the steel wire rope is relatively serious.

[0065] First, according to the angle data of the special-shaped groove section on-site, the angle between the two side plates 1112 is adjusted, and the angle of the hinge plate 1141 also changes accordingly. While the angle of the hinge plate 1141 changes, the sliding rod 1142 at the end of the hinge plate 1141 slides inside the connection box 113, and the length of the hinge plate 1141 extending into the connection box 113 through the accommodation groove 1132 also changes, so that the angles of the two joint boxes 111, and thus the angles of the two joint boxes 111, can adapt to the special-shaped groove interfaces with different angles. The use flexibility of this special-shaped joint member 110 is strong. Inside the special-shaped groove section, the connection shape at the end of the diaphragm wall unit section is changed through the channel steel 112, and clamping grooves are formed at the ends of each unit wall section, improving the anti-seepage performance and strength at the connection of each unit wall section, and connecting each unit wall section into a complete diaphragm wall integrating anti-seepage and anti-load. Second, when it is necessary to separately replace the joint box 111 and the telescopic hinge part 114, the connection bolts between the mounting plate 1134 and the top of the box body 1131 are removed, and the upper limit block 1135 is pulled out of the box body 1131. Then, the hinge plate 1141 and the sliding rod 1142 on the telescopic hinge part 114 can be pulled out of the box body 1131 to replace the telescopic hinge part 114. By pulling out the rotating shaft hinged on the second hinge sleeve 1143, the hinge plate 1141 and the sliding rod 1142 can be separately replaced. By pulling out the rotating shaft hinged on the first hinge sleeve 1113, the joint box 111 can be separately replaced. Third, the diaphragm wall joint is manufactured in the factory and then put into on-site construction, greatly shortening the construction period.

[0066] Rotate the first limit nut 313 to move the first limit nut 313 along the reinforcement rod body 3114. The two reinforcement rods 311 slide along the slideway holes 3113 on one of the opposite reinforcement rods 311 respectively, and the movement of the connection block 3111 is restricted by the hinge nut 312. According to the changed angles of the two joint boxes 111, adjust the length of the first telescopic reinforcement member 310 to align the hinge hole 3112 with the first hinge rod 130. Insert the first hinge rod 130 into the hinge hole 3112 and screw the hinge nut 312 onto the first hinge rod 130. Connect the second telescopic reinforcement member 320 to the second hinge rod 140 according to the installation method of the first telescopic reinforcement member 310. Limit the angles of the two hinge plates 1141 through the first telescopic reinforcement member 310, and limit the angle between the two side plates 1112 through the second telescopic reinforcement member 320, thereby achieving the purpose of fixing the angles of the two joint boxes 111. Enable the new diaphragm wall joint with a special-shaped interface to stabilize the angle while changing the angle, reduce the angle deflection of the new diaphragm wall joint with a special-shaped interface during hoisting, and avoid the deviation of the docking between the new diaphragm wall joint with a special-shaped interface and the special-shaped groove interface.

[0067] The above are only embodiments of the present application and are not used to limit the protection scope of the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application. It should be noted that similar reference numerals and letters represent similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

Claims

1. An underground diaphragm wall joint for a special-shaped interface, characterized in that Comprising: A special-shaped joint assembly (100), the special-shaped joint assembly (100) includes a special-shaped joint piece (110), the upper end of the special-shaped joint piece (110) is provided with a plurality of lifting holes (120), the special-shaped joint piece (110) includes two joint boxes (111), two channel steels (112), two connection boxes (113) and a telescopic hinge part (114), the joint box (111) includes a back plate (1111), side plates (1112) and a plurality of first hinge sleeves (1113), the side plates (1112) and the connection boxes (113) are respectively fixedly connected to both ends of one side of the back plate (1111), a plurality of the first hinge sleeves (1113) are fixedly connected to the ends of the side plates (1112), the first hinge sleeves (1113) at the ends of the two side plates (1112) are hinged to each other through a rotating shaft, the connection box (113) includes a box body (1131), a lower limit block (1133), a mounting plate (1134) and an upper limit block (1135), a receiving groove (1132) is penetrated and opened on one side of the box body (1131) away from the back plate (1111), the lower limit block (1133) is fixedly inserted into the inside of the bottom end of the box body (1131), the upper limit block (1135) is fixedly connected to the lower side of the mounting plate (1134), the upper limit block (1135) is inserted into the inside of the top end of the box body (1131), the mounting plate (1134) is fixedly connected to the top end of the box body (1131), the telescopic hinge part (114) includes two hinge plates (1141), two sliding rods (1142) and a second hinge sleeve (1143), one ends of the two hinge plates (1141) are hinged to each other through the second hinge sleeve (1143) and a rotating shaft, the two sliding rods (1142) are respectively fixedly connected to the other ends of the two hinge plates (1141), the two sliding rods (1142) are respectively slidably connected to the inside of the connection box (113), and the hinge plates (1141) slide through the receiving groove (1132); A transfer connection assembly (200), the transfer connection assembly (200) is provided in multiple numbers, the transfer connection assembly (200) includes a connection plate (210), a lifting ear plate (220), a connection pin (230), a lifting ring (240) and a lifting member (250), the lifting ear plate (220) is provided in two numbers, the two lifting ear plates (220) are oppositely arranged on the lower side of the connection plate (210), the connection pin (230) passes through one of the lifting ear plates (220) and is fixedly connected to the other lifting ear plate (220), the connection pin (230) passes through the lifting hole (120), the lifting ring (240) is fixedly connected to the upper side of the connection plate (210), and the lifting member (250) is connected to the lifting ring (240); Reinforcement component (300), the reinforcement component (300) includes a first telescopic reinforcement member (310) and a second telescopic reinforcement member (320), the first telescopic reinforcement member (310) and the second telescopic reinforcement member (320) have the same structure, and two first hinge rods (130) are oppositely arranged on the mounting plates (1134) at the tops of the two connection boxes (113). The first telescopic reinforcement member (310) includes two reinforcement rods (311), hinge nuts (312), a first limit nut (313) and a second limit nut (314). The reinforcement rod (311) includes a connection block (3111) and a reinforcement rod body (3114). The connection block (3111) is provided with hinge holes (3112) penetrating through the upper and lower sides thereof. The first hinge rod (130) slides through the hinge holes (3112). The first limit nut (313) is threadedly sleeved on the first hinge rod (130), and the first limit nut (313) abuts against the upper side of the connection block (3111). Slide holes (3113) are penetratingly provided on the front and rear sides at one end of the connection block (3111). The reinforcement rod body (3114) is fixedly connected to the side wall of the connection block (3111) at the end away from the slide holes (3113). The reinforcement rod body (3114) on one reinforcement rod (311) passes through the slide holes (3113) on the other reinforcement rod (311). The two reinforcement rods (311) are slidably connected to each other through the reinforcement rod body (3114) and the slide holes (3113). The first limit nut (313) and the second limit nut (314) are both threadedly sleeved on the reinforcement rod body (3114), and the first limit nut (313) and the second limit nut (314) respectively press against the front and rear sides of the connection block (3111). Two second hinge rods (140) are oppositely arranged at the tops of the two side plates (1112). The second telescopic reinforcement member (320) is connected between the two second hinge rods (140).

2. The diaphragm wall joint for a special-shaped interface according to claim 1, characterized in that, The lifting holes (120) are arranged in pairs, the connection pins (230) are arranged in pairs, and the two connection pins (230) arranged in pairs are respectively oppositely connected to the two lifting lugs (220).

3. The diaphragm wall joint for a special-shaped interface according to claim 2, wherein, The lifting lug (220) includes a plate body (221), and two connection holes (222) are oppositely provided on the plate body (221). The two connection pins (230) arranged in pairs are respectively connected to the connection holes (222) on the two plate bodies (221).

4. The diaphragm wall joint for a special-shaped interface according to claim 3, characterized in that, The connection pin (230) includes a connecting rod (231) and a rotating part (232). One end of the rotating part (232) is fixedly connected to one end of the connecting rod (231). Threads (233) are provided at the other end of the connecting rod (231). The connecting rod (231) passes through one of the connection holes (222), and one end of the connecting rod (231) is threadedly connected to the other connection hole (222) through the threads (233).

5. The diaphragm wall joint for a special-shaped interface according to claim 4, characterized in that One end of the connecting rod (231) with the thread (233) is provided with a pin hole (234), and an open pin is arranged in the pin hole (234).

6. The diaphragm wall joint for a special-shaped interface according to claim 1, wherein The lifting member (250) and the lifting ring (240) are connected by a lifting shackle (260).

7. The diaphragm wall joint for a special-shaped interface according to claim 6, wherein, The lifting member (250) includes a lifting steel wire rope (251). One end of the lifting steel wire rope (251) is connected by bending through a wire rope clip or pressing. A hanging buckle (252) is formed at one end of the lifting steel wire rope (251), and the hanging buckle (252) is connected to the lifting shackle (260).

8. The diaphragm wall joint for a special-shaped interface according to claim 7, characterized in that A thimble (253) is arranged in the hanging buckle (252).

9. The diaphragm wall joint for a special-shaped interface according to claim 1, characterized in that, Both the lifting ear plate (220) and the lifting ring (240) penetrate through the connecting plate (210) and are fixed by welding.

10. The construction method of the diaphragm wall joint for the special-shaped interface is characterized in that, Using the diaphragm wall joint for special-shaped interfaces according to any one of claims 1-9, comprising the following steps: Groove section excavation: The hydraulic grooving machine is used for the grooving construction of the diaphragm wall. The grooving is carried out by skip excavation. For each grooved section, the three-claw grooving is adopted. First, the two sides are excavated and then the middle is excavated. During the excavation process, the grooving verticality shall be ensured, and the grooving shall be cleaned and inspected in time. Fabrication of the special-shaped joint assembly (100): The special-shaped joint assembly (100) is prefabricated by the factory; the channel steel (112) and the back plate (1111) are welded; the side plates (1112) are connected by two steel plates through a hinge-like structure, and the articulated plate (1141) is also connected by two steel plates through a hinge-like structure. The sliding rod (1142) at the end of the articulated plate (1141) is inserted into the connection box (113). After the diaphragm wall joint is fabricated in the factory, the angle of the diaphragm wall joint is adjusted according to the on-site data to adapt to the special-shaped groove section. Specifically: adjust the angle between the two side plates (1112). At the same time, the angle of the articulated plate (1141) also changes, and the length of the articulated plate (1141) extending into the connection box (113) also changes, so as to make the angle of the two joint boxes (111). Rotate the first limit nut (313) to make the first limit nut (313) move along the reinforcement rod body (3114). The two reinforcement rods (311) slide along the slideway holes (3113) on one of the opposite reinforcement rods (311) respectively, so that the articulated hole (3112) corresponds to the first articulated rod (130). Insert the first articulated rod (130) into the articulated hole (3112), screw the articulated nut (312) onto the first articulated rod (130), and limit the movement of the connection block (3111) through the articulated nut (312). Connect the second telescopic reinforcement member (320) to the second articulated rod (140) according to the installation method of the first telescopic reinforcement member (310). Limit the angle between the two articulated plates (1141) through the first telescopic reinforcement member (310), and limit the angle between the two side plates (1112) through the second telescopic reinforcement member (320), so as to achieve the purpose of fixing the angle of the two joint boxes (111). Hoisting of the diaphragm wall joint: When using the diaphragm wall joint for connection, double-crane lifting is adopted for cooperation. Multiple lifting points are set for both the main and auxiliary cranes. Two lifting lugs (220) are respectively inserted on both sides of the lifting hole (120). Then, the connecting pin (230) is sequentially passed through one of the lifting lugs (220) and the lifting hole (120). After the connecting pin (230) passes through the lifting hole (120), it is threadedly connected to the other lifting lug (220). Then, the lifting member (250) is connected to the lifting ring (240). The transfer connection assembly (200) is installed at each lifting point according to the above steps, and then the hoisting is carried out by the hoisting equipment; After the special-shaped joint assembly (100) is placed, concrete is poured according to the designed diversion pipe. Other non-adjacent panels are constructed before the concrete strength reaches the design requirements. After the concrete strength reaches the requirements, the excavation construction of the adjacent groove is carried out.

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