Rapid installation device and construction method for self-supporting precast retaining walls

Abstract

This invention relates to the field of building construction technology, specifically to a rapid installation device and method for self-supporting precast retaining walls. It includes a platform, a traveling module, a retaining module, a hoisting module, an excavation module, and a grouting module. The platform includes a front-facing gantry and a back-facing gantry, as well as a support frame. The traveling module is located at the lower end of the front-facing and back-facing gantry. The retaining module is located on the front-facing side of the front-facing gantry to prevent soil and rocks rolling down the slope from entering the retaining wall construction position at the platform during construction. The hoisting module is mounted on the support frame for hoisting the retaining wall. The excavation module is mounted on the support frame to grab soil and rocks from the front-facing side of the retaining module and attach them to the back-facing side of the retaining wall. The grouting module is installed on the platform. The construction device of this application has a simple structure, is easy to operate, and can rapidly construct retaining walls even in situations where the slope construction site has poor stability.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, specifically to a rapid installation device and construction method for self-supporting precast retaining walls. Background Technology

[0002] Earthquakes or mudslides in mountainous areas can cause landslides that bury roadbeds, making road maintenance extremely difficult, especially in areas with unstable geological conditions and the risk of aftershocks and secondary landslides. Currently, excavators and bulldozers are typically used for clearing debris, but due to the risk of secondary landslides, the cleared road surface can be covered again by fallen debris and soil, greatly complicating the clearing process. To address this issue, retaining walls need to be constructed at the junction of the slope and the cleared road surface to block the falling debris and soil, preventing it from covering the cleared road again. However, constructing retaining walls is challenging because debris and soil continue to fall from the slope, and these locations are often inaccessible to conventional equipment, making the construction of retaining walls extremely difficult. Summary of the Invention

[0003] The purpose of this invention is to overcome the shortcomings of the above-mentioned background technology and provide a rapid installation device and construction method for self-supporting precast retaining walls.

[0004] The technical solution of this invention is: a rapid installation and construction device for self-supporting precast retaining walls, comprising,

[0005] The platform includes a soil-facing side gantry and a soil-receding side gantry, as well as a support frame fixed to the upper end of the soil-facing side gantry and the soil-receding side gantry.

[0006] A walking module is installed at the lower end of the soil-facing gantry and the soil-receiving gantry to drive the entire platform to move.

[0007] A retaining module is installed on the soil-facing side of the gantry frame to prevent soil and rocks rolling down the slope from entering the retaining wall construction position at the platform during the construction of the retaining wall.

[0008] A hoisting module, which is mounted on a support frame for hoisting the construction retaining wall;

[0009] The excavation module is mounted on a support frame and is used to grab the soil and rocks on the soil-facing side of the retaining module and place them on the retaining wall on the soil-repelling side of the retaining module.

[0010] The grouting module is installed on a platform and is used to inject grout into the area below the retaining wall for filling.

[0011] According to the self-supporting precast retaining wall rapid installation construction device provided in this application, the walking module includes...

[0012] Three sets of walking tracks are respectively installed on both sides of the lower end of the back soil side gantry and on one side of the lower end of the front soil side gantry.

[0013] A traveling trolley is located on the other side of the lower end of the soil-facing gantry.

[0014] The walking track is connected to the lower ends of the back soil side gantry and the front soil side gantry via vertically adjustable balance cylinders.

[0015] The traveling trolley is equipped with a support cylinder; the support cylinder is a vertical cylinder that supports the trolley and fixes it to the ground after the trolley position is adjusted.

[0016] According to the self-supporting precast retaining wall rapid installation construction device provided in this application, the traveling track and traveling trolley at the lower end of the soil-facing gantry are located on the inner side of the soil-facing gantry away from the retaining module.

[0017] According to the present application, a self-supporting precast retaining wall rapid installation construction device is provided, wherein the retaining module includes a baffle plate disposed on the soil-facing side of the soil-facing gantry; the lower end of the baffle plate is flush with the lower end of the soil-facing gantry, and a gap is left between the upper end and the support frame for the passage of the excavation module.

[0018] According to the present application, a self-supporting precast retaining wall rapid installation construction device is provided, wherein the support frame includes a gantry portion located between the soil-facing gantry and the soil-repelling gantry, and a cantilever portion located at the lateral end of the gantry portion and extending beyond the soil-facing gantry to the soil-facing side; the gantry portion and the cantilever portion are provided with transverse tracks arranged in the transverse direction.

[0019] According to the present application, a rapid installation device for a self-supporting precast retaining wall is provided. The hoisting module includes a first hoisting trolley that is laterally movable and slidably connected to a transverse track for hoisting platform segments and retaining wall segments. The first hoisting trolley is a hoisting device capable of longitudinal movement, rotation around a vertical axis, and adjustment of the deflection angle of the hoisted object.

[0020] According to the present application, a self-supporting precast retaining wall rapid installation construction device is provided, wherein the excavation module includes a second lifting trolley that can move laterally and is slidably connected to a transverse track; the lower end of the second lifting trolley is connected to an excavation bucket, and the second lifting trolley is a lifting device capable of longitudinal movement.

[0021] According to the self-supporting precast retaining wall rapid installation construction device provided in this application, the grouting module includes...

[0022] The grouting funnel is provided with a diagonal brace between the support frame and the soil-facing gantry frame, and the grouting funnel is installed between the diagonal brace and the soil-facing gantry frame;

[0023] The upper end of the grouting pipe is connected to the lower end of the grouting funnel, and the lower end of the grouting pipe extends into the grouting hole at the bottom of the retaining wall.

[0024] This application also provides a method for constructing a retaining wall, which uses the aforementioned self-supporting precast retaining wall rapid installation device for retaining wall construction, including the following steps:

[0025] S1. Assemble construction equipment at the construction site and use obstacle removal equipment to clear obstacles from the retaining wall construction site.

[0026] S2. Transport vehicles transport the prefabricated pedestal segments and retaining wall segments to the support frame (3);

[0027] S3. The hoisting module is used to construct the retaining wall at the construction position on the back side of the retaining module.

[0028] S4. The grouting module extends into the bottom of the retaining wall segment to grout and form a grouting layer;

[0029] S5. After the grouting layer stabilizes, the excavation module excavates soil from the soil-facing side of the retaining module, and then moves to the soil-repelling side of the retaining module to backfill the retaining wall segment.

[0030] S6. After the soil is backfilled, the platform moves to the next retaining wall construction position under the drive of the walking module. The construction of the next retaining wall is carried out in the same manner as steps S2 to S5, and so on, until the construction of all retaining walls is completed.

[0031] According to the retaining wall construction method provided in this application, in step S3, the method of constructing the retaining wall at the construction position on the back side of the retaining module by hoisting the module includes: hoisting the hoisting module to the construction position on the back side of the retaining module, the two sets of platform segments are arranged at intervals along the lateral direction and fixed at the construction position by anchor rods, and then the hoisting module hoists a retaining wall segment onto the two sets of platform segments, so that the groove on the bottom end face of the retaining wall segment is engaged with the platform segment, thereby completing the construction of the retaining wall at that construction position.

[0032] According to the retaining wall construction method provided in this application, in step S4, the method of inserting the grouting module into the bottom of the retaining wall segment to grout and form a grouting layer includes: assembling the grouting module on a platform, including a grouting funnel fixed on the platform and a grouting pipe installed at the lower end of the grouting funnel; after the retaining wall segment at the construction location is completed, inserting the lower end of the grouting pipe into the grouting hole at the bottom of the retaining wall segment to grout below the retaining wall segment to form a grouting layer.

[0033] The advantages of this application are as follows: 1. This application constructs a platform for retaining wall construction. The retaining modules on the platform can effectively prevent soil and rocks from rolling down the slope, avoiding covering the construction site during the construction of the retaining wall. The walking module facilitates the movement and position adjustment of the entire platform. The hoisting module makes hoisting the construction of the retaining wall extremely convenient. The excavation module can easily transfer soil and rocks from the slope to the completed retaining wall for backfilling. The grouting module can quickly fill the bottom of the retaining wall with grout. The entire construction device has a simple structure and is easy to operate. It can provide a good construction environment for retaining wall construction in the case of poor construction site conditions during the period of geological disaster, avoiding the problem of repeated cleaning. At the same time, it provides shelter for on-site workers and construction equipment to prevent injury to personnel and equipment from rolling rocks and landslides. The backfilling of the retaining wall is extremely convenient, realizing the rapid construction of the retaining wall. The overall construction efficiency is high, providing stable slope support for road maintenance and saving a lot of golden rescue time.

[0034] 2. This application uses three sets of walking tracks and one set of walking trolleys to move the platform. The walking tracks are height-adjustable by vertically adjustable balance cylinders to achieve leveling of the entire platform, which facilitates subsequent operations. The walking trolley is equipped with support cylinders, which support the platform on the ground. After the position adjustment is completed, the platform can be fixed in the construction position, making the platform construction more stable and safer.

[0035] 3. The traveling track and traveling trolley at the lower end of the soil-facing gantry of this application are located inside the soil-facing gantry. This arrangement can avoid interference with the retaining module. The retaining module can more easily shield the soil and rocks falling from the slope and prevent them from entering the retaining wall construction position inside the gantry, thus providing better protection for the equipment.

[0036] 4. The retaining module of this application includes a baffle plate, which is located on the soil-facing side of the soil-facing gantry. It can effectively block the soil and rocks falling from the slope. The baffle plate has a simple structure, is easy to use, and provides good protection for equipment and personnel. At the same time, it will not hinder the soil-digging operation of the excavation module.

[0037] 5. The platform of this application includes a gantry section and a cantilever section. By setting transverse rails on the gantry section and the cantilever section, the excavation module can be easily moved from the inside of the platform to the soil-facing side of the platform for excavation. The whole device has a simple structure and is very convenient to use.

[0038] 6. This application installs a first lifting trolley on the support frame. The first lifting trolley can be used to easily lift the platform segment and the retaining wall segment. The overall lifting is convenient, which greatly improves the construction efficiency. It is simple to operate and has great promotional value.

[0039] 7. This application has a second lifting trolley on the transverse track. The second lifting trolley uses the excavator bucket at the lower end to remove soil, which can easily grab the soil and rocks on the soil-facing side of the platform and put them onto the retaining wall being constructed inside the platform for backfilling. Soil removal is convenient and the operation is simple.

[0040] 8. This application has a grouting funnel and grouting pipe installed on the platform. The grouting funnel and grouting pipe can be used to conveniently grout the bottom of the retaining wall, so that the bottom of the retaining wall is filled and the constructed retaining wall is more stable.

[0041] 9. The retaining wall construction method of this application is extremely simple, which can avoid damage to construction equipment and personnel caused by soil and rocks falling from the slope, solve the problem of repeated cleaning when soil and rocks cover the construction site, and greatly improve the construction efficiency and safety of retaining walls in the case of poor construction site during the period of geological disaster.

[0042] 10. The construction method of this application for retaining walls is extremely simple. The platform segments and retaining wall segments are assembled by hoisting modules, which has extremely high overall installation efficiency. Both the platform segments and retaining wall segments are prefabricated structures, requiring very little operation on the construction site, which greatly improves the construction efficiency of retaining walls.

[0043] 11. This application uses a grouting funnel and grouting pipe to grout the bottom of the retaining wall segment to form a grouting layer, which fills the bottom of the retaining wall. The entire grouting process is simple, easy to operate, and the retaining wall structure is stable after construction.

[0044] The construction device described in this application has a simple structure and is easy to operate. It can quickly construct retaining walls even when the slope construction site has poor stability, providing a stable construction environment for construction personnel and equipment, and has great potential for widespread application. Attached Figure Description

[0045] Figure 1 : Front view of the construction apparatus of this application;

[0046] Figure 2 Side view of the construction apparatus of this application;

[0047] Figure 3 : Schematic diagram of the installation platform segment of the construction device in this application (front view);

[0048] Figure 4 : Schematic diagram of the installation platform segment of the construction device in this application (side view);

[0049] Figure 5 : Schematic diagram of the retaining wall segment installed by the construction device in this application (front view);

[0050] Figure 6This application includes a schematic diagram (side view) of the construction device installed on a retaining wall segment.

[0051] Figure 7 This application includes a schematic diagram of the grouting process for the construction equipment.

[0052] Figure 8 This application includes a schematic diagram of the construction equipment used for soil preparation.

[0053] Wherein: 1—Soil-facing gantry; 2—Soil-receiving gantry; 3—Support frame; 4—Traveling track; 5—Traveling trolley; 6—Balance cylinder; 7—Support cylinder; 8—Baffle; 9—First lifting trolley; 10—Second lifting trolley; 11—Grouting funnel; 12—Grouting pipe;

[0054] 21—Retaining wall segment; 22—Platform segment. Detailed Implementation

[0055] Embodiments of the present invention are described in detail below, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0056] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0057] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0059] This application relates to a rapid installation device and corresponding construction method for self-supporting precast retaining walls. It is mainly used for retaining wall construction in poor site conditions during periods of geological disasters. Of course, retaining wall construction can also be carried out when the site is stable. Poor site conditions mainly refer to situations near slopes where the soil and rocks on the slope are unstable and can slide down the slope. The construction device of this application is equipped with a retaining module, which can shield these rolling soil and rocks, preventing them from causing damage to equipment and personnel. It also avoids the problem of repeatedly cleaning up the rolling soil and rocks at the retaining wall construction site, greatly improving construction efficiency and safety.

[0060] Specifically, such as Figures 1-8 As shown, the construction device of this application includes a platform, a traveling module, a retaining module, a hoisting module, an excavation module, and a grouting module. The platform includes a soil-facing gantry 1 on the soil-facing side and a soil-receding gantry 2 on the soil-receding side, as well as a support frame 3 fixed to the upper end of the soil-facing gantry 1 and the soil-receding gantry 2. Both the soil-facing gantry 1 and the soil-receding gantry 2 have two legs, forming the platform structure, which is actually the load-bearing foundation of the entire construction device. The traveling module is located at the lower end of the soil-facing gantry 1 and the soil-receding gantry 2 to drive the entire platform to move. The traveling module can drive the movement and position adjustment of the entire platform, which is equivalent to constructing an integral, movable construction platform. The retaining module is located on the soil-facing side of the soil-facing gantry 1 to prevent soil and rocks rolling down the slope from entering the retaining wall construction position at the platform during the construction of the retaining wall. The retaining module isolates the rolling soil and rocks on the soil-facing side, preventing them from entering the platform. The retaining wall is installed inside the support frame on the back side of the platform. The hoisting module is set on the support frame 3 for hoisting the construction retaining wall. The retaining wall of this application is prefabricated in the prefabrication plant and is divided into platform segments and retaining wall segments. The transportation equipment transports these segments to the construction position at the platform, and the hoisting module hoists these segments in sequence for installation. The excavation module is set on the support frame 3 for grabbing the soil and rocks on the soil-facing side of the retaining module and placing them on the retaining wall on the back side of the retaining module. The excavation module is used to transport the soil and rocks on the soil-facing side to the back side to backfill the bottom of the retaining wall. The grouting module is installed on the platform for grouting the bottom of the retaining wall for filling. The construction position of the retaining wall may not be flat. After the retaining wall segments are installed, there may be a large gap between their bottom and the ground. The grouting module grouts the bottom of the retaining wall segments to form a grouting layer for filling, which improves the stability of the constructed retaining wall.

[0061] In actual construction, the following steps can be followed:

[0062] S1. Assemble construction equipment at the construction site and use obstacle removal equipment to clear obstacles from the retaining wall construction site.

[0063] The entire construction device is assembled at the construction site of the retaining wall. After the obstacle removal equipment clears the obstacles at the construction site, the entire platform is moved to the corresponding first section of the retaining wall construction site by the walking module.

[0064] S2. Transport vehicles deliver the prefabricated abutment segments and retaining wall segments to the area below support frame 3, such as... Figures 3-4 As shown;

[0065] Both the abutment segments and the retaining wall segments are prefabricated in the prefabrication plant. The constructed retaining wall consists of multiple abutment segments and retaining wall segments. Each retaining wall segment corresponds to two sets of abutment segments. The entire retaining wall is constructed by constructing each segment one by one.

[0066] S3. The hoisting module is used to construct the retaining wall at the construction position on the back side of the retaining module, such as... Figures 3-6 As shown;

[0067] The hoisting modules are used to hoist the platform segments and retaining wall segments separately for retaining wall construction;

[0068] S4. The grouting module extends into the bottom of the retaining wall segment to form a grouting layer, such as... Figure 7 As shown;

[0069] To ensure the stability of the retaining wall segments during construction, grouting is required at the bottom of the segments. This filling process prevents the formation of cavities at the bottom of the retaining wall segments, thereby improving the stability and safety of the retaining wall.

[0070] S5. After the grouting layer stabilizes, the excavation module excavates soil from the soil-facing side of the retaining module, and then moves to the soil-repellent side of the retaining module to backfill the retaining wall segment, such as... Figure 8 As shown;

[0071] S6. After the soil is backfilled, the platform moves to the next retaining wall construction position under the drive of the walking module. The construction of the next retaining wall is carried out in the same manner as steps S2 to S5, and so on, until the construction of all retaining walls is completed.

[0072] In some embodiments of this application, the walking module has been optimized, specifically, as follows: Figures 1-2As shown, the walking module in this embodiment includes three sets of walking tracks 4 and one set of walking trolleys 5. The soil-facing gantry 1 and the soil-receiving gantry 2 each have two sets of outriggers. The three sets of walking tracks 4 and the one set of walking trolleys 5 are respectively mounted on the four sets of outriggers. The three sets of walking tracks 4 are respectively located at the lower ends of the two sets of outriggers of the soil-receiving gantry 2 and the lower ends of one set of outriggers of the soil-facing gantry 1. The walking trolley 5 is located at the lower end of the other set of outriggers of the soil-facing gantry 1. The walking tracks 4 are connected to the lower ends of the soil-receiving gantry 2 and the soil-facing gantry 1 via vertically adjustable balance cylinders 6. The purpose of the balance cylinders 6 is to level the support frame 3. When the platform moves to the construction position, the height of the outriggers can be adjusted using the three sets of balance cylinders 6 to ensure that the support frame 3 is ultimately horizontal, making the excavation module and hoisting module on the support frame 3 horizontal, resulting in more stable and safer operation.

[0073] The traveling trolley 5 is equipped with a support cylinder 7, which is a vertical cylinder that supports and fixes the trolley to the ground after the trolley position is adjusted. The lower end of the support cylinder 7 is directly supported on the ground after the trolley position is adjusted. The support cylinder 7 can fix the entire trolley at the construction position, making the trolley more stable. After the retaining wall at the construction position is completed, when it is necessary to move the trolley, the support cylinder 7 is retracted, so that the support cylinder 7 is lifted off the ground, and the weight of the trolley is transferred back to the traveling trolley 5 and the traveling track 4, so that the trolley can be driven.

[0074] In a further implementation of this application, this embodiment optimizes the structure of the aforementioned walking track 4 and walking trolley 5, specifically, as follows: Figure 1 As shown, the traveling track 4 and traveling trolley 5 at the lower end of the soil-facing gantry 1 are located on the inner side of the soil-facing gantry 1, away from the retaining module. This arrangement of the traveling track 4 and traveling trolley 5 at the lower end of the soil-facing gantry 1 is to avoid interference with the retaining module. The traveling track 4 and traveling trolley 5 at the lower end of the soil-facing gantry 1 are located on the back side of the retaining module, within the shielding range of the retaining module, to prevent rolling soil and rocks from damaging the aforementioned equipment.

[0075] In other embodiments of this application, the retaining module described above has been optimized, specifically, as follows: Figures 1-2 As shown, the retaining module includes a baffle 8 installed on the soil-facing side of the soil-facing gantry 1. The lower end of the baffle 8 is flush with the lower end of the soil-facing gantry 1, and a gap is left between the upper end and the support frame 3 for the soil-digging module to pass through.

[0076] In fact, the baffle 8 includes a bottom baffle and a top baffle. The bottom baffle is located on the soil-facing side of the traveling track 4 and traveling trolley 5 at the lower end of the soil-facing gantry 1, and is used to shield and protect the traveling track 4 and traveling trolley 5 at the lower end of the soil-facing gantry 1. The top baffle is located between the two sets of outriggers of the soil-facing gantry 1, and is used to prevent soil and rocks in the air from entering the inner side of the gantry.

[0077] In some embodiments of this application, the structure of the support frame 3 described above has been optimized, specifically, as follows: Figure 1 and 3 As shown, the support frame 3 includes a gantry portion located between the soil-facing gantry 1 and the soil-repelling gantry 2, and a cantilever portion located at the lateral end of the gantry portion and extending beyond the soil-facing gantry 1 to the soil-facing side. The gantry portion and the cantilever portion are provided with transverse rails arranged in a transverse direction.

[0078] The gantry section is located between the soil-facing gantry 1 and the soil-repellent gantry 2, facilitating the hoisting module's handling and hoisting of the platform segment and retaining wall segment, as well as the excavation module's backfilling operation on the retaining wall. The cantilever section extends beyond the baffle 8, allowing the excavation module to access the soil-facing side of the baffle 8 for soil extraction.

[0079] In other embodiments of this application, the above-described hoisting module has been optimized, specifically, as follows: Figure 1 and 3 As shown, the hoisting module includes a first hoisting trolley 9 that is laterally movable and slidably connected to a transverse track for hoisting platform segments and retaining wall segments. The first hoisting trolley 9 is a hoisting device capable of longitudinal movement, rotation around a vertical axis, and adjustment of the deflection angle of the hoisted object.

[0080] In practical applications, a first longitudinal track can be laid on the transverse track. The first lifting trolley 9 can move longitudinally along the first longitudinal track, and the first longitudinal track can move laterally along the transverse track. The first longitudinal track and the transverse track can realize the lateral and longitudinal movement of the first lifting trolley 9. The first lifting trolley 9 can rotate around the vertical axis and adjust the deflection angle of the hoisted object, thereby making precise position adjustments for the hoisted platform segment and retaining wall segment.

[0081] In other embodiments of this application, this embodiment optimizes the above-described excavation module, specifically, as follows: Figures 1-3 As shown, the excavation module includes a second lifting trolley 10 that is slidably connected to a transverse track and can move laterally. The lower end of the second lifting trolley 10 is connected to a bucket. The second lifting trolley 10 is a lifting device capable of longitudinal movement.

[0082] Similarly, a second longitudinal track corresponding to the second lifting trolley can be set on the transverse track. The second longitudinal track can move laterally on the transverse track, and the second lifting trolley 10 can move longitudinally on the second longitudinal track. The bucket at the lower end of the second lifting trolley 10 can perform soil removal and backfilling. That is, the bucket in this embodiment can move in both longitudinal and transverse positions, and can easily enter the soil-facing side of the baffle 8 through the transverse track on the cantilever part to remove soil, and then enter the soil-removing side of the baffle 8 through the transverse track to backfill soil.

[0083] In some embodiments of this application, the grouting module described above has been optimized, specifically, as follows: Figure 1 and 7 As shown, the grouting module includes a grouting funnel 11 and a grouting pipe 12. A diagonal brace is provided between the support frame 3 and the soil-facing side gate frame 1. The grouting funnel 11 is installed between the diagonal brace and the soil-facing side gate frame 1. The upper end of the grouting pipe 12 is connected to the lower end of the grouting funnel 11, and the lower end of the grouting pipe 12 extends into the grouting hole at the bottom of the retaining wall.

[0084] In actual construction, after the retaining wall segment at the construction location is completed, the lower end of the grouting pipe 12 is inserted into the grouting hole at the bottom of the retaining wall segment to inject grout into the lower part of the retaining wall segment to form a grouting layer.

[0085] During the actual construction of the retaining wall: the various modules of the construction device are transported to the construction site of the retaining wall by the transportation equipment. The construction device is assembled at the construction site. Then, the platform is moved to the construction position of the retaining wall by three sets of walking tracks 4 and one set of walking trolley 5. When the platform is in the required construction position, the support cylinder 7 extends and supports the ground, so that the walking trolley 5 is suspended in the air. The three sets of balance cylinders 6 are used to level the support frame 3.

[0086] The transport equipment transports the prefabricated pedestal segments and retaining wall segments to the inside of the platform. The first crane trolley 9 lifts the pedestal segments and transports them to the construction location of the retaining wall for installation. Each set of retaining wall segments corresponds to two sets of pedestal segments, which are arranged laterally at intervals. Then, anchor bolts are used to fix the two sets of pedestal segments to the ground at the construction location. The first crane trolley 9 lifts the retaining wall segments onto the two sets of pedestal segments that have been installed. The bottom of the retaining wall segment is provided with a corresponding slot for the pedestal segment. The slot is aligned with the pedestal segment so that the slot on the bottom end of the retaining wall segment engages with the pedestal segment, thus completing the construction of that segment of the retaining wall.

[0087] Insert the lower end of the grouting pipe 12 into the grouting hole at the bottom of the retaining wall segment, and grout into the bottom of the retaining wall segment, that is, the position between the two sets of platform segments, to fill the bottom of the retaining wall segment until a grouting layer is formed.

[0088] After the grouting layer stabilizes, the second crane trolley 10 moves the bucket to the soil-facing side of the baffle 8 to remove soil, and then moves it to the soil-repellent side of the baffle 8 to backfill the bottom of the retaining wall segment, thus completing the construction of the retaining wall segment.

[0089] Then the support cylinder 7 retracts, and the traveling trolley 5 is supported on the ground again. With the coordinated action of the three sets of traveling tracks 4 and one set of traveling trolley 5, the platform moves to the construction position of the next retaining wall segment, and so on, until all retaining wall segments are completed.

[0090] like Figure 1 As shown, the lateral direction of this application Figure 1 The left and right directions in the middle, and the vertical direction refers to Figure 1 The direction perpendicular to the paper, vertical refers to Figure 1 The up and down directions in the middle.

[0091] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A rapid installation and construction device for self-supporting precast retaining walls, characterized in that: include, The platform includes a soil-facing side gate (1) on the soil-facing side and a soil-receding side gate (2) on the soil-receding side, as well as a support frame (3) fixed to the upper end of the soil-facing side gate (1) and the soil-receding side gate (2). The walking module is located at the lower end of the soil-facing gantry (1) and the soil-receiving gantry (2) to drive the entire platform to move. The retaining module is set on the soil-facing side of the gantry (1) and is used to prevent soil and rocks rolling down the slope from entering the retaining wall construction position at the platform when constructing the retaining wall. The hoisting module is mounted on the support frame (3) and is used to hoist the construction retaining wall; The excavation module is mounted on the support frame (3) and is used to grab the soil and rocks on the soil-facing side of the retaining module and place them on the soil-retaining wall on the soil-repelling side of the retaining module. Grouting module, which is installed on a platform, is used to inject grout into the area below the retaining wall for filling; The retaining module includes a baffle (8) installed on the soil-facing side of the soil-facing gantry (1); the lower end of the baffle (8) is flush with the lower end of the soil-facing gantry (1), and the upper end is left with a gap between it and the support frame (3) for the soil-digging module to pass through.

2. The self-supporting precast retaining wall rapid installation construction device as described in claim 1, characterized in that: The walking module includes, Three sets of walking tracks (4) are respectively set on both sides of the lower end of the back soil side gantry (2) and one side of the lower end of the soil-facing side gantry (1); The traveling trolley (5) is located on the other side of the lower end of the soil-receiving gantry (1); The walking track (4) is connected to the lower end of the back soil side gantry (2) and the front soil side gantry (1) through a vertically adjustable balance cylinder (6); The traveling trolley (5) is equipped with a support cylinder (7); the support cylinder (7) is a vertical cylinder that supports the platform and fixes it to the ground after the platform position is adjusted.

3. The self-supporting precast retaining wall rapid installation construction device as described in claim 2, characterized in that: The traveling track (4) and traveling trolley (5) at the lower end of the soil-receiving side gantry (1) are located on the inner side of the soil-receiving side gantry (1) away from the soil-retaining module.

4. The self-supporting precast retaining wall rapid installation construction device as described in claim 1, characterized in that: The support frame (3) includes a gantry section located between the soil-facing gantry (1) and the soil-receiving gantry (2) and a cantilever section located at the lateral end of the gantry section and extending beyond the soil-facing gantry (1) to the soil-facing side; the gantry section and the cantilever section are provided with transverse tracks arranged in the transverse direction.

5. The self-supporting precast retaining wall rapid installation construction device as described in claim 4, characterized in that: The hoisting module includes a first hoisting trolley (9) that is laterally movable and slidably connected to a transverse track for hoisting platform segments and retaining wall segments; the first hoisting trolley (9) is a hoisting device capable of longitudinal movement, rotation around a vertical axis, and adjustment of the deflection angle of the hoisted object.

6. The self-supporting precast retaining wall rapid installation construction device as described in claim 4, characterized in that: The excavation module includes a second lifting trolley (10) that can move laterally and is slidably connected to a transverse track; the lower end of the second lifting trolley (10) is connected to a bucket, and the second lifting trolley (10) is a lifting device capable of longitudinal movement.

7. The self-supporting precast retaining wall rapid installation construction device as described in claim 1, characterized in that: The grouting module includes, Grouting funnel (11), with a diagonal brace between the support frame (3) and the soil-facing gate frame (1), and the grouting funnel (11) is installed between the diagonal brace and the soil-facing gate frame (1); Grouting pipe (12), the upper end of which is connected to the lower end of grouting funnel (11), and the lower end of grouting pipe (12) extends into the grouting hole at the bottom of the retaining wall.

8. A method for constructing a retaining wall, characterized in that: The construction of retaining walls using the self-supporting precast retaining wall rapid installation device according to any one of claims 1 to 7 includes the following steps: S1. Assemble construction equipment at the construction site and use obstacle removal equipment to clear obstacles from the retaining wall construction site. S2. Transport vehicles transport the prefabricated pedestal segments and retaining wall segments to the support frame (3); S3. The hoisting module is used to construct the retaining wall at the construction position on the back side of the retaining module. S4. The grouting module extends into the bottom of the retaining wall segment to grout and form a grouting layer; S5. After the grouting layer stabilizes, the excavation module excavates soil from the soil-facing side of the retaining module, and then moves to the soil-repelling side of the retaining module to backfill the retaining wall segment. S6. After the soil is backfilled, the platform moves to the next retaining wall construction position under the drive of the walking module. The construction of the next retaining wall is carried out in the same manner as steps S2 to S5, and so on, until the construction of all retaining walls is completed.

9. A method for constructing a retaining wall as described in claim 8, characterized in that: In step S3, the method for constructing a retaining wall at the construction position on the back side of the retaining module using a hoisting module includes: the hoisting module hoists two sets of platform segments to the construction position on the back side of the retaining module, the two sets of platform segments are arranged laterally at intervals and fixed at the construction position by anchor rods, and then the hoisting module hoists a retaining wall segment onto the two sets of platform segments, so that the groove on the bottom end face of the retaining wall segment engages with the platform segment, thus completing the construction of the retaining wall at that construction position.

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