Fabricated frame beam for expansive soil side slope

Abstract

The invention relates to an expansive soil side slope assembly type frame beam which comprises an anchor rod extending into a base of a side slope, a fixing pipe fitting located at the upper end of the anchor rod and detachably connected with the upper end of the anchor rod, a supporting bracket body connected with the fixing pipe fitting, and a floating supporting body arranged between the fixing pipe fitting and the supporting bracket body. Elastic supporting of the fixed pipe fitting in the length direction of the anchor rods is implemented through the floating supporting body, the multiple sets of assembly beams are arranged in the circumferential direction of the fixed pipe fitting at intervals, the assembly beams between the adjacent anchor rods are detachably connected, and deformation stress generated by swelling soil due to water absorption swelling or water loss shrinkage can be effectively buffered; and when the expansive soil shrinks, the floating support body rebounds, so that cracking and damage of the frame beams caused by deformation of the soil body are avoided, the service life of the structure is prolonged, a drainage channel is formed between the frame beams, the condition that the expansive soil is saturated with water or alternated in wetting and drying is reduced, and the expansion and softening phenomena of the soil body are weakened.

Description

Technical Field

[0001] The invention relates to the technical field of expansive soil slope protection, in particular to an expansive soil slope assembled frame beam. Background Art

[0002] The stability of expansive soil slopes has long been a key concern in civil engineering. Expansive soils exhibit significant swelling upon water absorption and shrinkage upon water loss. Repeated wetting and drying cycles can cause cracks in the soil, significantly reducing its strength. This can lead to a range of destructive phenomena, including deformation, sliding, and collapse, posing a serious threat to nearby buildings, roads, and personnel.

[0003] Currently, frame beams, as a common slope protection structure, are widely used in expansive soil slope management. Traditional frame beams for expansive soil slopes primarily divide the slope into several small sections to reduce the sliding tendency of the soil on the slope. Anchor rods or cables connect the frame beams to the stable stratum to provide sufficient anchoring force to maintain the overall stability of the slope. However, existing frame beams for expansive soil slopes still have many problems:

[0004] 1. Due to the repeated expansion and contraction of expansive soil, large local stress will be generated on the frame beam, causing cracks and damage to the frame beam, thereby reducing its protective performance;

[0005] 2. The drainage performance of traditional frame beams is limited, making it difficult to effectively remove water from the slope. This causes the expansive soil to be saturated with water or alternately wet and dry for a long time, further exacerbating soil expansion and softening, and weakening the stability of the slope.

[0006] 3. The existing frame beam structure performs poorly in terms of cooperative deformation ability with expansive soil and cannot adapt to the deformation characteristics of expansive soil. It is easy to cause gaps between the structure and the soil, affecting the overall protection effect.

[0007] Therefore, it is urgent to develop a new type of expansive soil slope frame beam to solve the problems of poor durability, poor drainage effect and weak ability to coordinate deformation with the soil when dealing with the characteristics of expansive soil, so as to improve the stability of the expansive soil slope and the service life of the protective structure. Summary of the Invention

[0008] In view of the shortcomings of the above-mentioned existing technologies, an assembled frame beam for expansive soil slopes is provided, aiming to solve the problems of poor durability, poor drainage effect and weak ability to coordinate deformation with the soil when dealing with the characteristics of expansive soil, thereby improving the stability of the expansive soil slope and the service life of the protective structure.

[0009] To achieve the above and other related purposes, the present invention provides an expansive soil slope assembled frame beam, comprising:

[0010] Anchor rods extend into the base of the slope and are arranged at intervals along the length and width of the slope;

[0011] A fixed pipe, located at the upper end of the anchor rod and forming a detachable connection with the upper end of the anchor rod;

[0012] A support bracket body connected to the fixing pipe and placed in the groove of the slope;

[0013] a floating support body, disposed between the fixed pipe and the support bracket body, and elastically supporting the fixed pipe along the length direction of the anchor rod through the floating support body;

[0014] A plurality of assembly beams are provided on the fixed pipe, and the plurality of assembly beams are provided at intervals along the circumference of the fixed pipe;

[0015] The assembly beams between adjacent anchor rods form a detachable connection.

[0016] In one embodiment of the present invention, a capillary water collection tube is provided around the fixed pipe fitting, and the capillary water collection tube is extended along the length direction of the assembly beam. The capillary water collection tubes between adjacent anchor rods are connected to each other, and one end of the capillary water collection tube is connected to the inner cavity of the fixed pipe fitting. A drain pipe is provided on the fixed pipe fitting, and the drain pipe is connected to the pump.

[0017] In one embodiment of the present invention, the inner cavity of the fixed pipe is in the shape of a cone with a larger upper part and a smaller lower part. A locking block is provided at the lower end of the inner cavity of the fixed pipe, and the anchor rod passes through the locking block. A locking cap body is provided in the fixed pipe, and the upper inner wall of the locking cap body is threadedly connected to the upper outer wall of the fixed pipe. When the locking cap body rotates along the fixed pipe, the lower end of the locking cap body is linked to abut against the locking block.

[0018] In one embodiment of the present invention, a clamping cavity is provided on the inner wall of the fixed tube, and one end of the capillary water tube is communicated with the clamping cavity.

[0019] In one embodiment of the present invention, a connecting tube cover is provided on the outer sleeve of the fixed pipe, and the connecting tube cover cooperates with the fixed pipe to limit the position downward along the length of the pipe, and one end of the assembly beam is installed on the installation position set on the connecting tube cover.

[0020] In one embodiment of the present invention, a tensioning chain is provided between the locking caps on adjacent fixing pipes, and both ends of the tensioning chain are respectively fixed to the locking caps. The fixing pipe rotates to tighten the tensioning chain.

[0021] In one embodiment of the present invention, hanging balls are respectively provided at both ends of the tensioning chain, a card interface for clamping the hanging balls is provided around the locking cap body, and a through opening for the tensioning chain to pass through is provided on the supporting bracket body. The tensioning chain extends along the bottom of the supporting bracket body and is located at the lower beam surface of the assembly beam.

[0022] In one embodiment of the present invention, a support arm extends in the outer circumferential direction of the connecting cylinder cover, and a support roller is provided on the support arm. The support roller is arranged horizontally, and the beam surface of the assembly beam is placed on the support roller. An elastic support member is provided at one end of the assembly beam, and the other end of the elastic support member abuts against the connecting cylinder cover.

[0023] In one embodiment of the present invention, an inclined surface is provided on the support arm, and the inclined surface is arranged close to the support roller. A sliding inclined surface is provided at one end close to the assembly beam, and the sliding inclined surface cooperates with the inclined surface.

[0024] In one embodiment of the present invention, an adjustment strut is provided on the end face of the assembly beam between adjacent anchor rods, an adjustment nut is provided in the middle of the adjustment strut, the adjustment nut rotates and adjusts the length of the adjustment strut, a cylindrical slot is provided on the end face of the assembly beam, and limiting columns are provided at both ends of the adjustment strut and extend into the cylindrical slot.

[0025] By adopting the above technical solution, the technical effects of the present invention are:

[0026] 1. The anchor rods extend into the base of the slope and are arranged at intervals along the length and width directions. They can penetrate into the stable stratum, provide strong anchoring force, effectively resist the downward force of the slope soil, and enhance the overall stability of the slope; the fixed pipe is detachably connected to the upper end of the anchor rod to ensure that the anchor rod is stably connected to the upper structure and facilitate installation and disassembly; the support bracket is placed in the slope groove and connected to the fixed pipe to form a stable support structure, further improving the restraint ability of the frame beam on the slope soil and preventing soil sliding.

[0027] 2. The floating support, positioned between the fixed pipe and the support bracket, provides elastic support for the fixed pipe along the length of the anchor rod, effectively buffering deformation stress caused by expansion or contraction of expansive soil due to water absorption or loss. When the soil expands, the floating support compresses, absorbing the expansion force; when the soil contracts, the floating support rebounds, maintaining close contact between the structure and the soil, preventing cracking and damage to the frame beam caused by soil deformation. This significantly improves the frame beam's adaptability to expansive soil deformation and extends the structure's service life.

[0028] 3. The assembly beams are located on the fixed pipes and arranged in multiple groups at circumferential intervals. The assembly beams between adjacent anchor rods can be detachably connected. This structural design is conducive to forming drainage channels between the frame beams, timely draining water from the slope, reducing the saturation or alternating dry and wet conditions of the expansive soil, and weakening the expansion and softening of the soil. At the same time, the assembly beams, fixed pipes, support brackets, etc. together constitute a protection system, which divides the slope into small pieces, limits the sliding range of the soil, and further enhances the slope protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 and Figure 2 They are respectively schematic structural diagrams of two sets of expansive soil slope assembled frame beams in one embodiment of the present invention from two different perspectives;

[0031] Figure 3 It is a schematic plan view of multiple sets of expansive soil slope assembled frame beams during assembly in one embodiment of the present invention;

[0032] Figure 4 This is a front view of multiple sets of expansive soil slope assembled frame beams in one embodiment of the present invention during assembly;

[0033] Figure 5 It is a schematic plan view of an assembled frame beam for an expansive soil slope in one embodiment of the present invention;

[0034] Figure 6 and Figure 7 They are schematic structural diagrams of an expansive soil slope assembled frame beam from two perspectives in one embodiment of the present invention;

[0035] Figure 8 This is a schematic structural diagram of an expansive soil slope assembled frame beam after the assembled beam is removed in one embodiment of the present invention;

[0036] Figure 9 and Figure 10 They are schematic structural diagrams from two perspectives showing the coupling between the cylinder cover and the locking cap body in one embodiment of the present invention;

[0037] Figure 11 A schematic diagram of the structure of the support bracket body, the fixing pipe and the locking cap body in one embodiment of the present invention;

[0038] Figure 12 for Figure 11 Schematic diagram of the cross-section structure in ;

[0039] Figure 13 A schematic structural diagram of an assembly beam in one embodiment of the present invention;

[0040] Figure 14 This is a schematic structural diagram of a locking cap body in one embodiment of the present invention;

[0041] Figure 15 It is a cross-sectional view of the fixed pipe fitting in the present invention. DETAILED DESCRIPTION

[0042] The following describes the embodiments of the present invention through specific examples. Those skilled in the art will readily understand the other advantages and benefits of the present invention from the disclosure herein. The present invention may also be implemented or applied through various other specific embodiments, and the details in this specification may be modified or altered based on different viewpoints and applications without departing from the spirit of the present invention.

[0043] It should be noted that the illustrations provided in this embodiment are only used to schematically illustrate the basic concept of the present invention. Therefore, the illustrations only show components related to the present invention and are not drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component can be changed at will, and the component layout type may also be more complicated.

[0044] It should be noted that traditional expansive soil slope frame beams primarily divide the slope into several small sections to reduce the sliding tendency of the slope soil. They also connect the frame beams to the stable stratum via anchor rods or cables to provide sufficient anchoring force to maintain the overall stability of the slope. However, existing expansive soil slope frame beams still present numerous problems. On the one hand, the repeated expansion and contraction of the expansive soil can generate significant local stresses on the frame beams, leading to cracking and damage, thus reducing their protective performance. On the other hand, the limited drainage performance of traditional frame beams makes it difficult to effectively remove accumulated water within the slope, causing the expansive soil to remain saturated or alternately wet and dry for extended periods, further exacerbating soil expansion and softening and weakening the slope's stability. Furthermore, existing frame beam structures perform poorly in terms of their ability to synergize with expansive soil deformation. They are unable to adapt to the deformation characteristics of expansive soil, easily causing gaps between the structure and the soil, impacting the overall protective effect.

[0045] To this end, the present invention proposes an expansive soil slope assembled frame beam, comprising:

[0046] Anchor rods 10 extend into the base of the slope and are spaced apart along the length and width of the slope; fixing pipes 20 are located at the upper end of the anchor rods 10 and are detachably connected to the upper end of the anchor rods 10;

[0047] A support bracket body 30 is connected to the fixing pipe 20 and is placed in the groove of the slope;

[0048] A floating support body 40 is provided between the fixed pipe 20 and the support bracket body 30 , and elastically supports the fixed pipe 20 along the length direction of the anchor rod 10 through the floating support body 40 ;

[0049] The assembly beams 50 are arranged in multiple groups on the fixed pipe 20 , and the multiple groups of assembly beams 50 are arranged in multiple groups at intervals along the circumference of the fixed pipe 20 ; the assembly beams 50 between adjacent anchor rods 10 form a detachable connection.

[0050] In one embodiment, see Figures 1 to 4 The assembly beams 50 are arranged in four groups along the circumferential direction of the fixed pipe 20, so that the anchor rods 10 are located in the middle position of the assembly beams 50, so that the assembly beams 50 are reliably locked together by the anchor rods 10 to form a whole. In actual construction, a groove is constructed on the slope of the expansive soil in advance, and a hole-making operation is performed using a drilling machine. Then, the anchor rods 10 are implanted, and the support bracket body 30 is placed in the groove. The floating support body 40 is arranged between the fixed pipe 20 and the support bracket body 30, and elastically supports the fixed pipe 20 along the length direction of the anchor rods 10, which can effectively buffer the deformation stress caused by water absorption and expansion or water loss and shrinkage of the expansive soil.

[0051] When the expansive soil expands, the floating support body 40 compresses to absorb the expansion force; when the expansive soil contracts, the floating support body 40 rebounds to maintain close contact between the structure and the soil, avoiding cracking and damage of the frame beam due to soil deformation, significantly improving the adaptability of the frame beam to the deformation of the expansive soil, and extending the service life of the structure.

[0052] In one embodiment, see Figure 12 The floating support body 40 can be made of highly elastic rubber. When the support bracket body 30 is placed in the trough of the slope, the support bracket body 30 can be integrated with the slope, and the floating support body 40 can adapt to the expansion or contraction of the expansive soil slope.

[0053] In one embodiment, the assembly beam 50 is a PC prefabricated part. After being prefabricated and formed in advance, it can be lifted to the slope by lifting equipment for installation. A groove is dug in advance by excavating equipment on the slope surface for installing the assembly beam 50. The assembly beam 50 is clamped in the groove so that the assembly beams 50 on adjacent anchor rods 10 can be combined into one, forming a whole with the slope.

[0054] In one embodiment, see Figure 4A capillary water collection tube 60 is provided around the fixed pipe fitting 20, and the capillary water collection tube 60 extends along the length direction of the assembly beam 50, and the capillary water collection tubes 60 between adjacent anchor rods 10 are connected to each other, and one end of the capillary water collection tube 60 is connected to the inner cavity of the fixed pipe fitting 20, and a drain pipe is provided on the fixed pipe fitting 20, and the drain pipe is connected to the pump.

[0055] In one embodiment, the capillary water collection pipe 60 is a common infiltration pipe in civil engineering, which can reliably collect water flow in the surface and middle layers of the soil in the slope. The capillary water collection pipe 60 is arranged around the fixed pipe 20 and extends along the length of the assembly beam 50. The capillary water collection pipes 60 between adjacent anchor rods 10 are interconnected to form a three-dimensional drainage network. It uses capillary action to quickly absorb and collect moisture in the slope, especially excess moisture in the expansive soil due to rainfall and groundwater infiltration. The collected moisture is collected into the fixed pipe 20 through the capillary water collection pipe 60 connected to the inner cavity of the fixed pipe 20, and then efficiently discharged from the slope through the cooperation of the drainage pipe and the pump. This effectively reduces the water content of the expansive soil, reduces the expansion and deformation of the soil due to water absorption, weakens the repeated expansion and contraction effect of the expansive soil, and fundamentally improves the stability of the slope.

[0056] The combination of a pump and drainage pipe allows for flexible control of drainage rate and volume based on actual operating conditions, precisely adjusting the water level within the slope. This prevents localized water accumulation on the slope, which can lead to soil softening and reduced strength. This allows the expansive soil to maintain relatively stable mechanical properties, enhances the cohesion and internal friction angle between soil particles, and reduces the risk of shallow and deep slope slip. Furthermore, the stable soil mechanical properties reduce deformation stress on the frame beams, extending their service life.

[0057] The capillary water collection pipe 60 is tightly integrated with the fixed pipe fittings 20, assembly beam 50, and other structures, becoming an integral part of the entire frame beam protection system. During the drainage process, the capillary water collection pipe 60 provides lateral support for the assembly beam 50, enhancing its overall rigidity. Its interconnected design with the fixed pipe fittings 20 enables the drainage system to work in synergy with the anchoring structure of the frame beam 50, preventing any gaps between the soil and the structure caused by drainage. This ensures that the frame beam 50 maintains good contact and coordinated operation with the slope soil, enhancing the reliability of the entire protection system in complex working conditions.

[0058] The dynamic drainage design reduces the damaging effects of expansive soil's wet-dry cycle on the frame beams 50, lowering the probability of cracking and damage, and reducing the frequency of subsequent repairs and component replacements. Furthermore, the stable drainage system effectively prevents slope collapse and landslides caused by accumulated water, reducing repair costs, significantly improving the project's durability and cost-effectiveness, and achieving long-term, stable slope protection.

[0059] In one embodiment, see Figure 12 The inner cavity of the fixed pipe fitting 20 is in the shape of a cone with a larger upper portion and a smaller lower portion. A locking block 21 is provided at the lower end of the inner cavity of the fixed pipe fitting 20. The anchor rod 10 passes through the locking block 21. A locking cap body 70 is provided in the fixed pipe fitting 20. The inner wall of the upper end of the locking cap body 70 is threadedly connected to the outer wall of the upper end of the fixed pipe fitting 20. When the locking cap body 70 rotates along the fixed pipe fitting 20, the lower end of the locking cap body 70 is linked to abut against the locking block 21.

[0060] In the above embodiment, the inner cavity of the fixed pipe 20 is in the shape of a cone with a larger upper portion and a smaller lower portion, and cooperates with the locking block 21 at the lower end and the locking cap body 70 to form a reliable locking mechanism. When the locking cap body 70 rotates along the fixed pipe 20 and abuts its lower end against the locking block 21, the anchor rod 10 can be firmly fixed in the fixed pipe 20. This stable connection method can effectively resist the various stresses generated during the expansion and contraction of the expansive soil, prevent the anchor rod 10 and the fixed pipe 20 from loosening or displacement, ensure that the anchoring effect between the entire frame beam structure and the slope soil is stable and reliable, thereby significantly improving the overall stability of the expansive soil slope. The use of a threaded locking cap body 70 makes the installation process simple and convenient.

[0061] The construction workers only need to rotate the locking cap body 70 to easily lock and unlock the anchor rod 10. Moreover, during the installation process, if it is found that the position or angle of the anchor rod 10 needs to be fine-tuned, it can also be adjusted by appropriately rotating the locking cap body 70, without the need for complicated tools and operations, which greatly improves the construction efficiency and reduces the construction difficulty. Since the expansive soil will continue to expand and contract, this requires the frame beam structure to have a certain ability to adapt to deformation. The conical tubular inner cavity design of the fixed pipe 20 and the adjustable locking method enable the anchor rod 10 to produce slight displacements and angle changes within a certain range as the soil deforms, while still maintaining a good locking state. This adaptive deformation capability can effectively buffer the impact of soil deformation on the frame beam structure, reduce damage to the structure caused by deformation, and extend the service life of the frame beam. It should be noted that the floating support body 40 is located between the locking cap body 70 and the support bracket body 30.

[0062] In one embodiment, see Figure 11 and 14To facilitate the screwing of the locking cap body 70, an external hexagonal nut is provided on the upper end of the locking cap body 70. After the fixing pipe 20 is sleeved on the anchor rod 10, the locking cap body 70 is rotated by an electric wrench or a hydraulic wrench, so that the locking cap body 70 can be screwed to the pipe mouth position of the fixing pipe 20. The lower end of the locking cap body 70 abuts against the locking block 21 of the fixing pipe 20, so that the locking block 21 can bite the anchor rod 10 in real time, ensuring the reliability of the fixation of the fixing pipe 20 and the anchor rod 10.

[0063] In one embodiment, in order to reduce the corrosion problem caused by water entering the anchor rod 10, Figure 15 As shown, a clamping cavity is provided on the inner wall of the fixing pipe 20, and one end of the capillary water tube 60 is communicated with the clamping cavity.

[0064] In one embodiment, the annular space formed by the clamping cavity provides a storage area for water flow, effectively preventing water from entering the fixed pipe 20, thereby reducing corrosion caused by water erosion on the anchor rod 10, and facilitating the collection of water flow within the fixed pipe 20. A pump can also be used to introduce cleaning water into the clamping cavity to clean the capillary water collection tube 60, ensuring that the capillary water collection tube 60 can collect water flow. Water can also be introduced into the slope to maintain the moisture content of the expansive soil and prevent it from becoming too dry or too wet.

[0065] In one embodiment, the fixed pipe 20 is provided with a connecting tube cover 80 on the outer shell, and the connecting tube cover 80 cooperates with the fixed pipe 20 to limit the position downward along the pipe length direction, and one end of the assembly beam 50 is installed on the installation position set on the connecting tube cover 80.

[0066] In one embodiment, the locking cap body 70 located on the fixed pipe fitting 20 has a stepped tubular structure with a larger upper portion and a smaller lower portion. The connecting tube cover 80 has a similar appearance to the locking cap body 70. When the connecting tube cover 80 is set on the locking cap body 70, the connecting tube cover 80 can be limited to support the connecting tube cover 80. There is an upper and lower socket set between the two. Once assembled, no relative rotation will occur, and one end of the assembly beam 50 can be supported, which facilitates the rotation of the locking cap body 70 to achieve a tight connection between the fixed pipe fitting 20 and the anchor rod 10.

[0067] In one embodiment, a tensioning chain 90 is provided between the locking caps 70 on adjacent fixing pipes 20 , and both ends of the tensioning chain 90 are respectively fixed to the locking caps 70 . The fixing pipe 20 rotates to tighten the tensioning chain 90 .

[0068] In one embodiment, see Figure 6 and Figure 7The tensioning chain 90 is a steel cable. When installed between adjacent locking caps 70, the tensioning chain 90 can be tightened by rotating the connecting tube cover 80 on the fixed pipe 20. The tensioning chain 90 is fixed at both ends to the locking caps 70 of the adjacent fixed pipes 20. Rotating the locking caps 70 squeezes the locking block 21 while simultaneously tightening the tensioning chain 90. Ultimately, both the anchor rods 10 and the chain are locked and tightened simultaneously. This allows the dispersed anchor rods 10 to be tightly connected to the assembly beam 50, forming a secure mesh connection system for the entire frame beam structure. When an expansive soil slope is subjected to external forces or when the soil expands and contracts, the tensioning chain 90 effectively limits the relative displacement between the fixed pipes 20, enhancing the structural integrity, preventing local loosening that could lead to overall protection failure, and significantly improving the slope protection structure's resistance to damage.

[0069] Expansive soils exhibit uncertain expansion and contraction deformations. The tensioning chain 90, when tightened, provides a certain degree of flexible buffering capacity. When soil expansion creates compression, the tensioning chain 90 releases stress through slight elastic deformation. When the soil contracts, the chain promptly tightens to fill the gap, effectively constraining the fixed pipe 20. This allows for dynamic adaptation to expansive soil deformation, reduces structural damage caused by uncoordinated deformation, and extends the service life of the frame beam.

[0070] The tensioning chain 90 can be tightened simply by rotating the locking cap 70, eliminating the need for complex tools and complicated procedures, significantly improving on-site installation efficiency. Construction personnel can quickly adjust the tightness of the tensioning chain 90 based on actual working conditions, precisely controlling the tightness of the frame beam connection. This ensures efficient installation under varying slope conditions, reducing construction time and labor costs.

[0071] The tension status of the 90° chain is intuitively visible, facilitating routine inspections and maintenance. By observing the chain's tension, workers can quickly determine if any loose connections exist at the frame beam joints, promptly identifying potential safety hazards. Compared to traditional concealed connection structures, this visual monitoring method significantly enhances the safety early warning capabilities of slope protection structures, facilitating proactive reinforcement measures and ensuring long-term slope stability.

[0072] As an additional reinforcement component, the tensioning chains 90 add redundancy to the frame beam structure. Even if some of the anchor rods 10, fixing pipes 20, or assembly beams 50 are damaged, the tensioning chains 90 maintain the connection between adjacent components, ensuring basic structural stability. This increases time for subsequent repairs and prevents overall slope instability caused by local failures, thereby enhancing the reliability and fault tolerance of the protection system.

[0073] In one embodiment, see Figure 11 and Figure 12, the two ends of the tensioning chain 90 are respectively provided with hanging balls 91, and the periphery of the locking cap body 70 is provided with a card interface 71 for clamping the hanging ball 91, and the support bracket body 30 is provided with a through opening for the tensioning chain 90 to pass through. The tensioning chain 90 extends along the bottom of the support bracket body 30 and is located at the lower beam surface of the assembly beam 50.

[0074] In one embodiment, the hook balls 91 at each end of the tensioning chain 90 engage with the snap-fitting interfaces 71 around the locking cap 70, enabling a quick connection between the tensioning chain and the locking cap. This simple snap-fit ​​connection eliminates the need for complex tools and procedures, significantly reducing installation time and improving efficiency. When tightening the tensioning chain 90, the locking cap 70 is rotated to wrap the tensioning chain 90 around it, tightening the tensioning chain 90. This tightens the end faces of the assembly beams 50 and the connection between the assembly beams 50 and the connecting tube cover 80, ultimately integrating the entire frame beam on the slope into a single, integrated structure.

[0075] In one embodiment, a transition wheel is provided on the locking cap body 70 , and the tensioning chain 90 is mounted on the transition wheel. The deflection direction of the tensioning chain 90 can be adjusted so that the tensioning chain 90 extends and contracts along the length direction of the assembly beam 50 .

[0076] In one embodiment, a support arm 81 extends in the outer circumferential direction of the connecting cylinder cover 80, and a support roller 82 is provided on the support arm 81. The support roller 82 is arranged horizontally, and the beam surface of the assembly beam 50 is placed on the support roller 82. An elastic support member 83 is provided at one end of the assembly beam 50, and the other end of the elastic support member 83 abuts against the connecting cylinder cover 80.

[0077] In one embodiment, four groups of support arms 81 are arranged along the circumferential direction of the connecting cylinder cover 80, and the support arms 81 extend along the radial direction of the connecting cylinder cover 80, and a card slot (a rectangular slot) is provided on the support arm 81, which can implement the card connection of the assembly beam 50.

[0078] In one embodiment, see Figure 9 and Figure 10The support rollers 82 on the support arms 81 are arranged horizontally, and the beam surface of the assembly beam 50 is placed directly on the support rollers 82, converting the sliding friction between the assembly beam 50 and the support structure into rolling friction. When the frame beam is deformed due to soil expansion or contraction or external forces on the expansive soil slope, the support rollers 82 can roll freely. The elastic support member 83 provided at one end of the assembly beam 50 abuts against the connecting tube cover 80 at the other end, forming an elastic buffer structure. When the expansive soil expands and contracts, the elastic support member 83 can absorb and release the stress generated by the soil deformation through its own compression or rebound, so that the assembly beam 50 can deform in coordination with the soil, avoiding hard collision or separation between the assembly beam 50 and other components due to soil deformation, and effectively improving the adaptability and stability of the frame beam structure under complex working conditions.

[0079] In one embodiment, the support arm 81 is provided with an inclined surface 811, which is arranged near the support roller 82. A sliding inclined surface 51 is provided near one end of the assembly beam 50, and the sliding inclined surface 51 cooperates with the inclined surface 811. The inclined surface 811 on the support arm 81 cooperates with the sliding inclined surface 51 of the assembly beam 50 to form a guide structure. During installation, the assembly beam 50 can slide quickly and accurately into the support roller 82 along the guidance of the inclined surface 811, without the need for complex alignment operations, significantly reducing the difficulty of installation and shortening construction time. At the same time, the guiding effect of the inclined surface 811 can effectively prevent offset or misalignment of the assembly beam 50 during installation, ensuring the accurate installation of each component and improving the overall assembly quality.

[0080] In one embodiment, an adjusting strut 52 is provided on the end face of the assembly beam 50 between adjacent anchor rods 10, and an adjusting nut 521 is provided in the middle of the adjusting strut 52. The adjusting nut 521 rotates and adjusts the length of the adjusting strut 52. A cylindrical slot 53 (internal thread groove) is provided on the end face of the assembly beam 50, and limiting columns 522 (external thread heads) are provided at both ends of the adjusting strut 52 and extend into the cylindrical slot 53.

[0081] In the above embodiment, the length of the support rod 52 can be precisely adjusted by rotating the adjustment nut 521, allowing the support distance between adjacent assembly beams 50 to be flexibly changed according to different slope conditions and the actual requirements of anchor spacing. This adjustable feature enables the frame beam structure to better adapt to the complex and changing terrain of expansive soil slopes, improves the versatility and adaptability of the structure's installation, and reduces structural stress problems caused by improper spacing.

[0082] The limit posts at each end of the adjustment struts 52 extend into the cylindrical slots 53 on the end faces of the assembly beams 50, forming a stable connection. When the expansive soil slope is subjected to soil expansion and contraction, external forces, and other factors, the adjustment struts 52 effectively limit the relative displacement of adjacent assembly beams 50, tightly connecting them into a single unit. This strengthens the integrity and deformation resistance of the frame beam structure, prevents overall structural instability caused by local loosening, and improves the reliability of the slope protection system.

[0083] Adjusting the struts 52 to evenly distribute them between adjacent assembly beams 50 disperses the load generated by the slope soil across the individual assembly beams, avoiding localized stress concentration. Fine-tuning the length of the struts 52 further optimizes the stress distribution across the entire frame beam structure, evenly distributing stress across components like the anchor rods 10 and the fixing pipes 20. This reduces the risk of structural damage due to uneven stress and extends the service life of the frame beams.

[0084] The above description is only a preferred embodiment of the present application and an explanation of the technical principles used. Those skilled in the art should understand that the scope involved in the present application is not limited to the technical solutions formed by a specific combination of the above-mentioned technical features, but should also cover other technical solutions formed by any combination of the above-mentioned technical features or their equivalent features without departing from the inventive concept, such as the technical solutions formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

[0085] Except for the technical features described in the specification, the remaining technical features are known technologies to those skilled in the art. In order to highlight the innovative features of the present invention, the remaining technical features will not be described here in detail.

Claims

1. An expansive soil slope assembled frame beam, characterized in that: include: Anchor rods (10) extend into the base of the slope and are arranged at intervals along the length and width of the slope; A fixed pipe (20) is located at the upper end of the anchor rod (10) and is detachably connected to the upper end of the anchor rod (10); A support bracket body (30) is connected to the fixing pipe (20) and is placed in the groove of the slope; A floating support body (40) is provided between the fixed pipe (20) and the support bracket body (30), and elastically supports the fixed pipe (20) along the length direction of the anchor rod (10) through the floating support body (40); A plurality of assembly beams (50) are provided on the fixed pipe (20), and the plurality of assembly beams (50) are provided at intervals along the circumference of the fixed pipe (20); The assembly beams (50) between adjacent anchor rods (10) form a detachable connection.

2. The expansive soil slope assembled frame beam according to claim 1, characterized in that: A capillary water collection tube (60) is provided around the fixed pipe (20), and the capillary water collection tube (60) is extended along the length direction of the assembly beam (50). The capillary water collection tubes (60) between adjacent anchor rods (10) are interconnected, and one end of the capillary water collection tube (60) is connected to the inner cavity of the fixed pipe (20). A drainage pipe is provided on the fixed pipe (20), and the drainage pipe is connected to a pump.

3. The expansive soil slope assembled frame beam according to claim 1, characterized in that: The inner cavity of the fixed pipe (20) is in the shape of a cone with a larger upper portion and a smaller lower portion. A locking block (21) is provided at the lower end of the inner cavity of the fixed pipe (20). The anchor rod (10) passes through the locking block (21). A locking cap body (70) is provided in the fixed pipe (20). The inner wall of the upper end of the locking cap body (70) is threadedly connected to the outer wall of the upper end of the fixed pipe (20). When the locking cap body (70) rotates along the fixed pipe (20), the lower end of the locking cap body (70) is driven to abut against the locking block (21).

4. The expansive soil slope assembled frame beam according to claim 2, characterized in that: The inner wall of the fixed pipe (20) is provided with a clamping cavity, and one end of the capillary water tube (60) is in communication with the clamping cavity.

5. The expansive soil slope assembled frame beam according to claim 3, characterized in that: The fixed pipe (20) is provided with a connecting tube cover (80) on its outer sleeve. The connecting tube cover (80) cooperates with the fixed pipe (20) in a downward limiting manner along the pipe length direction. One end of the assembly beam (50) is mounted on a mounting position provided on the connecting tube cover (80).

6. The expansive soil slope assembled frame beam according to claim 5, characterized in that: A tensioning chain (90) is provided between the locking cap bodies (70) on adjacent fixed pipes (20), and both ends of the tensioning chain (90) are respectively fixed on the locking cap bodies (70). The fixed pipe (20) rotates and tightens the tensioning chain (90).

7. The expansive soil slope assembled frame beam according to claim 6, characterized in that: Both ends of the tensioning chain (90) are respectively provided with hanging balls (91); a clamping interface (71) for clamping the hanging ball (91) is provided on the periphery of the locking cap body (70); a through opening for the tensioning chain (90) to pass through is provided on the support bracket body (30); the tensioning chain (90) extends along the bottom of the support bracket body (30) and is located at the lower beam surface of the assembly beam (50).

8. The expansive soil slope assembled frame beam according to claim 4, characterized in that: A support arm (81) extends in the outer circumferential direction of the connecting cylinder cover (80), and a support roller (82) is provided on the support arm (81). The support roller (82) is arranged horizontally, and the beam surface of the assembly beam (50) is placed on the support roller (82). An elastic support member (83) is provided at one end of the assembly beam (50), and the other end of the elastic support member (83) abuts against the connecting cylinder cover (80).

9. The expansive soil slope assembled frame beam according to claim 8, characterized in that: The support arm (81) is provided with an inclined surface (811), the inclined surface (811) is arranged close to the support roller (82), and a sliding inclined surface (51) is provided at one end close to the assembly beam (50), and the sliding inclined surface (51) cooperates with the inclined surface (811).

10. The expansive soil slope assembled frame beam according to claim 9, characterized in that: An adjusting strut (52) is provided on the end face of the assembly beam (50) between adjacent anchor rods (10), an adjusting nut (521) is provided in the middle of the adjusting strut (52), and the adjusting nut (521) rotates to adjust the length of the adjusting strut (52). A cylindrical slot (53) is provided on the end face of the assembly beam (50), and limiting columns (522) are provided at both ends of the adjusting strut (52) and extend into the cylindrical slot (53).

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