Construction road structure

Abstract

The construction road structure comprises a bearing part, a restraining part and a first controller, the bearing part comprises a bearing structure body and a load dispersing structure body which are arranged in a stacked mode in the direction perpendicular to a soft soil foundation, and the upper surface, away from the soft soil foundation, of the bearing structure body is configured to be connected with an adjacent road surface; the thickness of the bearing part is adjustable; the restraining part comprises at least two lateral restraining bodies, the at least two lateral restraining bodies are arranged on the two opposite sides of the bearing part in the direction parallel to the soft soil foundation and attached to the bearing part, and one part of each lateral restraining body is arranged to be inserted into the soft soil foundation in the direction perpendicular to the soft soil foundation. A soil density sensor is arranged at the end part, inserted into the soft soil foundation, of the lateral constraint body; the first controller is connected with the soil density sensor through a first circuit, and the first controller controls the thickness of the bearing part according to the soil density sensed by the soil density sensor. According to the construction road structure, the construction efficiency of the construction road can be improved.

Description

Technical Field

[0001] The present application relates to the field of road construction, and in particular to a construction road structure. Background Art

[0002] High-water-content soft soil areas are characterized by low soft soil strength and high compression. When constructing temporary construction roads in high-water-content soft soil areas, the replacement method is usually adopted to partially or completely excavate the soft soil layer below the foundation surface and replace it with materials with higher strength to ensure the stability of the foundation. However, when the soft soil layer is thick, the replacement method will generate a large amount of abandoned soil and backfill earth and stone, resulting in low efficiency of temporary construction road construction. Summary of the Invention

[0003] The present application aims to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes a construction road structure that can improve the efficiency of construction.

[0004] According to an embodiment of the present application, a construction road structure includes a bearing portion, a restraining portion, and a first controller; The bearing portion includes a bearing structure and a load distributing structure stacked in a direction perpendicular to the soft soil foundation, the bearing structure is configured away from the surface of the soft soil foundation to connect with the adjacent road surface, and the thickness of the bearing portion is adjustable; The constraint portion includes at least two lateral constraint bodies, the at least two lateral constraint bodies are arranged on opposite sides of the bearing portion in a direction parallel to the soft soil foundation and are in contact with the bearing portion, a portion of each lateral constraint body is configured to be inserted into the foundation in a direction perpendicular to the soft soil foundation, and a soil density sensor is provided at the end of the lateral constraint body inserted into the soft soil foundation; The first controller is connected to the soil density sensor through a first line. The first controller receives the soil density of the soft soil foundation sensed by the soil density sensor from the first line and controls the thickness of the bearing part based on the soil density.

[0005] The construction road structure according to the embodiment of the present application has at least the following beneficial effects: the load-bearing structure is used as a road surface to directly bear loads such as vehicles and machinery, and transmit the force to the load-distributing structure below; the load-distributing structure is used to disperse the load and evenly distribute the load to the soft soil foundation; at the same time, the lateral constraint body is used to be inserted into the soft soil foundation and form a stable constraint on both sides of the load-bearing part, effectively resisting the lateral deformation or displacement of the load-bearing part due to compression; the soil density sensor can sense the density of the soft soil foundation; the first controller controls the thickness of the load-bearing part according to the sensed density of the soft soil foundation; the construction road structure in the present application can take into account both the stability of the load and the construction speed, and when constructing the construction road structure, there is no need to excavate the soft soil area for large-scale replacement, which is beneficial to reducing the amount of earthwork and improving the efficiency of construction road construction.

[0006] According to some embodiments of the present application, the first controller controls the thickness of the bearing portion based on the soil density using the following formula: H=σ / (ρ 2 +ρ), where H is the thickness of the bearing part, σ is the first constant, and ρ is the soil density.

[0007] According to some embodiments of the present application, along a direction perpendicular to the soft soil foundation, the load distribution structure includes an isolation drainage layer arranged on a side away from the load-bearing structure, the isolation drainage layer is configured to fit the soft soil foundation, the isolation drainage layer has a fiber interwoven structure, the fiber interwoven structure is connected to a second controller, the second controller is connected to a soil moisture sensor through a second line, the soil moisture sensor is movably connected to the lateral constraint body, the second controller receives the humidity of the soft soil foundation sensed by the soil moisture sensor from the second line, and controls the mesh diameter of the fiber interwoven structure based on the humidity.

[0008] According to some embodiments of the present application, the second controller controls the mesh diameter of the fiber interwoven structure based on humidity using the following formula: D=c / (ln W+W), where D is the mesh diameter of the fiber interwoven structure, c is the second constant, and W is the humidity.

[0009] According to some embodiments of the present application, the load distribution structure also includes a grid layer, which is located on the side of the isolation and drainage layer facing the load-bearing structure in a direction perpendicular to the soft foundation, and the grid layer is arranged in close contact with the isolation and drainage layer. The grid layer includes a first rod group and a second rod group arranged in layers in a direction perpendicular to the soft foundation, the first rod group includes a plurality of first rods arranged in parallel and spaced apart from each other, the second rod group includes a second rod arranged in parallel and spaced apart from each other, the first rod is perpendicular to the second rod, and a plurality of grid units are constructed, the first rod has a slider, the second rod is inserted into the slider, and the second rod is connected to a driver, which is connected to the soil moisture sensor through a third line to receive the humidity of the soft foundation sensed by the humidity sensor, and controls the sliding of the second rod based on the humidity to adjust the size of the grid unit.

[0010] According to some embodiments of the present application, the driver is connected to the soil density sensor via a fourth line to receive the density of the soft soil foundation sensed by the soil density sensor, and controls the sliding of the second rod based on the density to adjust the size of the grid unit.

[0011] According to some embodiments of the present application, the load distribution structure further includes graded crushed stone, and the grid units are filled with graded crushed stone.

[0012] According to some embodiments of the present application, the bearing structure further includes a rubble stone layer, and the rubble stone layer is located between the bearing structure and the isolation and drainage layer in a direction perpendicular to the soft soil foundation.

[0013] According to some embodiments of the present application, the load-bearing structure includes a pavement layer and a subbase layer. Along the direction perpendicular to the soft soil foundation, the subbase layer is located between the pavement layer and the load distribution structure. One side of the subbase layer is in contact with the pavement layer, and the other side opposite to the subbase layer is in contact with the load distribution structure. The pavement layer is configured to connect with the adjacent pavement layer.

[0014] According to some embodiments of the present application, the lateral constraint body includes a first connecting member, a second connecting member, a constraint plate and at least two constraint piles arranged at intervals along the second horizontal direction. Along the first horizontal direction, the constraint plate is connected to the side of the constraint pile close to the bearing part and fits with the bearing part. The first connecting member is connected to the side of each constraint pile away from the bearing part. The second connecting member passes through the bearing part, and one end of the second connecting member is connected to the first connecting member on one side of the bearing part, and the other end of the second connecting member is connected to the first connecting member on the other side of the bearing part. Each constraint pile is configured to be inserted into the soft foundation along a direction perpendicular to the soft foundation, and the first horizontal direction, the second horizontal direction and the direction perpendicular to the soft foundation are perpendicular to each other.

[0015] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become obvious from the description below, or will be learned through practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present application is further described below with reference to the accompanying drawings and embodiments, wherein: Figure 1 This is a schematic diagram of the construction road structure of an embodiment of the present application; Figure 2 This is a top view of the grid layer according to an embodiment of the present application.

[0017] Reference numerals: bearing portion 100 , bearing structure 110 , pavement layer 111 , subbase layer 112 , load distribution structure 120 , isolation and drainage layer 121 , grid layer 122 , grid unit 1221 , graded crushed stone 123 , rough stone layer 124 , positioning piles 130 ; The restraining portion 200 , the lateral restraining body 210 , the restraining plate 211 , the restraining pile 212 , the first connecting member 220 , and the second connecting member 230 . DETAILED DESCRIPTION

[0018] The following describes in detail embodiments of the present application. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application and are not to be construed as limiting the present application.

[0019] In the description of this application, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.

[0020] In the description of this application, "several" means more than one, "plurality" means two or more, "greater than," "less than," and "exceed" are understood to exclude the number itself, while "above," "below," and "within" are understood to include the number itself. The terms "first" and "second" are used solely to distinguish technical features and are not to be construed as indicating or implying relative importance, or as implicitly specifying the number or order of the technical features indicated.

[0021] In the description of this application, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in this application based on the specific content of the technical solution.

[0022] In the description of this application, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0023] The following describes the embodiments of the present application in conjunction with the accompanying drawings: refer to Figure 1 and Figure 2 According to an embodiment of the present application, a construction road structure includes a load-bearing portion 100, a constraint portion 200, and a first controller. The load-bearing portion 100 includes a load-bearing structure 110 and a load-distributing structure 120 stacked in a direction perpendicular to the soft soil foundation. The upper surface of the load-bearing structure 110, which is located away from the soft soil foundation, is configured to engage with the adjacent road surface. The thickness of the load-bearing portion 100 is adjustable. The constraint portion 200 includes at least two lateral constraint bodies 210. The at least two lateral constraint bodies 210 are arranged on opposite sides of the load-bearing portion 100 in a direction parallel to the soft soil foundation (e.g., a first horizontal direction) and are in contact with the load-bearing portion 100. A portion of each lateral constraint body 210 is configured to be inserted into the foundation in a direction perpendicular to the soft soil foundation. A soil density sensor is provided at the end of the lateral constraint body 210 that is inserted into the soft soil foundation.

[0024] The first controller is connected to the soil density sensor via a first line to receive the soil density of the soft soil foundation sensed by the soil density sensor. Based on the soil density, the first controller controls the thickness of the bearing member 100, enabling the bearing member 100 to better adapt to the density of the soft soil foundation. When the soil density of the soft soil foundation is low, the thickness of the bearing member 100 can be increased to ensure the stability of the road structure during construction. When the soil density of the soft soil foundation is high, the thickness of the bearing member 100 can be reduced to save materials and improve construction efficiency. Furthermore, based on the soft soil density feedback from the soil density sensor, the stability of the lateral restraint 210 inserted into the soft soil foundation can be determined, ensuring that the lateral restraint 210 is inserted to a stable depth.

[0025] Among them, the adjustable thickness of the bearing part 100 can be the adjustable thickness of the bearing structure 110, and / or the adjustable thickness of the load distribution structure 120. The adjustment method can be achieved by adding or reducing the cushioning material between the bearing structure 110 and the load distribution structure 120. For example, prefabricated concrete pads can be used, and the overall thickness of the bearing part can be changed by adjusting the number and thickness of the pads, thereby adapting to the bearing requirements of soft soil foundations of different densities.

[0026] The load-bearing structure 110 is used as a road surface to directly bear loads such as vehicles and machinery, and transmit the force to the load-distributing structure 120 below. The load-distributing structure 120 is used to disperse the load and evenly distribute the load to the soft soil foundation, effectively avoiding local subsidence of the soft soil foundation. At the same time, the lateral constraint 210 is used to be inserted into the foundation and form a stable constraint on both sides of the load-bearing part 100, effectively resisting the lateral deformation or displacement of the load-bearing part 100 due to compression. Therefore, under the coordinated action of the load-bearing part 100 and the constraint part 200, the construction road structure in this application takes into account the stability of the load-bearing, and when constructing the construction road structure, there is no need to excavate the soft soil area for replacement, which is beneficial to reducing the amount of earthwork and improving the efficiency of construction road construction.

[0027] refer to Figure 1 and Figure 2 Specifically, the upper surface of the load-bearing structure 110 is used to connect with the adjacent road surface. The load-bearing structure 110 can be made of high-strength materials such as plain concrete and steel plates, directly bearing the loads of vehicles, machinery, etc., and transferring the force to the load-distributing structure 120 below. The load-distributing structure 120 can be made of crushed stone, geosynthetics, etc. Through the material's own characteristics and interaction, the load is evenly distributed to the soft soil foundation, effectively avoiding the sinking of high-water-content soft soil areas due to excessive local loads, so that there is no need for large-scale excavation and backfilling of soft soil areas during construction, reducing the amount of earthwork and construction procedures, thereby shortening the construction period and improving the efficiency of construction road construction.

[0028] Among them, there are two ways to connect the supporting structure 110 with the adjacent road surface: one is that the upper surface of the supporting structure 110 is flush with the adjacent road surface, which facilitates direct and smooth passage of vehicles; the other is that the upper surface of the supporting structure 110 is transitionally connected with the adjacent road surface through a slope cast with concrete or prefabricated parts to meet the passage needs of different height differences.

[0029] The constraint portion 200 includes at least two lateral constraint bodies 210, which are symmetrically arranged on opposite sides of the bearing portion 100 along a first horizontal direction and fit tightly with the bearing portion 100. A portion of each lateral constraint body 210 is inserted into the foundation in a direction perpendicular to the soft soil foundation. The lateral constraint bodies 210 can be made of pine piles, channel steels, steel sheet piles, precast concrete piles, etc. The lateral constraint bodies 210 are inserted into the foundation for fixation by a pile driver. The portion of the lateral constraint body 210 exposed to the soft soil foundation contacts the side of the bearing portion 100. When the bearing portion 100 is under pressure, the lateral constraint body 210 can effectively limit the lateral deformation of the bearing portion 100, enhance the overall stability of the bearing portion 100, and ensure that the construction road has a stable support effect during use.

[0030] In addition, gravel and other materials of the load distribution structure 120 can be reused through screening, and the lateral constraints 210 of the constraint part 200, such as pine piles, channel steels, and steel sheet piles, can be pulled out and recycled by lifting equipment. Therefore, after the construction of the construction road structure of the present application is completed, the main components and materials of the bearing part 100 and the constraint part 200 can be quickly dismantled and recycled, which not only reduces the generation of construction waste and reduces the impact on the environment, but also helps to save the material procurement cost of subsequent projects and realize the efficient recycling of resources. It is suitable for temporary construction road scenarios with high requirements for construction period, cost control and resource reuse.

[0031] It should be noted that soil density sensors can measure the density of soft soil foundations based on principles such as electromagnetic induction and nuclear magnetic resonance. Taking electromagnetic induction as an example, a soil density sensor contains a transmitting coil and a receiving coil. The transmitting coil generates an alternating magnetic field under the action of an alternating current. When this alternating magnetic field passes through the soft soil foundation, mineral particles and other substances in the soft soil foundation interfere with the magnetic field. The degree of interference is closely related to the soil density of the soft soil foundation. The receiving coil receives the interfered magnetic field signal and converts it into an electrical signal. Because soft soil foundations of different soil densities interfere with the magnetic field to varying degrees, the electrical signal output by the receiving coil varies in strength. The signal processing circuit integrated within the soil density sensor analyzes and processes the received electrical signal, converting it into an electrical signal value corresponding to the soil density. This electrical signal value is the soil density signal sensed by the soil density sensor.

[0032] The first controller includes modules such as a signal processing module, a control algorithm module, and an output control module. When the soil density sensor transmits the sensed soil density signal to the first controller via the first line, the signal processing module first performs preprocessing operations such as filtering and amplification on the received signal to improve signal quality and stability. The preprocessed signal is then transmitted to the control algorithm module. The control algorithm module pre-stores a preset soil density threshold and parameters for adjusting the thickness of the load-bearing portion corresponding to different soil density ranges. The control algorithm module compares the received soil density signal with the preset threshold. For example, when the soil density sensed by the soil density sensor is lower than the preset threshold, it indicates that the bearing capacity of the soft soil foundation may be insufficient. In this case, the control algorithm module generates a corresponding control instruction based on a preset adjustment strategy. The control instruction is transmitted to the output control module, which sends the control instruction to a construction worker's operating device (such as a portable device with a display and operating buttons). The construction worker adjusts the thickness of the load-bearing portion by adding or removing cushioning material between the load-bearing structure and the load-distributing structure according to the instruction information displayed on the operating device.

[0033] refer to Figure 1 and Figure 2 , the first controller controls the thickness of the bearing part based on the soil density through the following formula: H=σ / (ρ2+ρ), where H is the thickness of the bearing part, σ is the first constant, and ρ is the soil density.

[0034] Specifically, the pre-processed signal is transmitted to the control algorithm module, which pre-stores the preset soil density threshold and the formula H=σ / (ρ 2 +ρ), where H is the thickness of the bearing portion, σ is a first constant. In this embodiment, the value range of the first constant σ can be 600 to 1400, and ρ is the soil density of the soft soil foundation sensed by the soil density sensor. The control algorithm module compares the received soil density signal with the preset threshold and calculates the required thickness H of the bearing portion 100 according to the formula. This thickness value H is transmitted to the output control module, and the output control module sends a control instruction to the construction personnel to operate the equipment. According to the instruction information displayed on the operating device, the construction personnel adjust the thickness of the bearing portion by adding or reducing the cushioning material between the bearing structure 110 and the load distribution structure 120 to achieve the calculated thickness H.

[0035] Taking σ=600 as an example, the results of the embodiment of the present application and the comparative example are as follows:

[0036] Among them, ρ is the soil density, H is the thickness of the bearing part 100 of this solution, P is the bearing capacity of this solution, Hthin is the thickness of the bearing part 100 of the thinner comparative example, Pthin is the bearing capacity of the thinner comparative example, Hthick is the thickness of the bearing part 100 of the thicker comparative example, Pthick is the bearing capacity of the thicker comparative example. It should be noted that the bearing capacity is the maximum mass that the bearing part 100 can withstand per unit area without sinking.

[0037] From the above data comparison, it can be seen that this embodiment controls the thickness of the bearing part 100 based on the soil density and the preset formula. Compared with the thinner and thicker comparison examples, it has a greater bearing capacity, and compared with the thicker comparison example, it is also beneficial to save materials, reduce costs and improve construction efficiency.

[0038] refer to Figure 1 and Figure 2 In other embodiments, the constraint portion 200 includes a plurality of lateral constraint bodies 210. Along the first horizontal direction, lateral constraint bodies 210 are arranged on both sides of the load-bearing portion 100, and along the second horizontal direction, lateral constraint bodies 210 are arranged on both sides of the load-bearing portion 100, so that each lateral constraint body 210 surrounds and fits the outer peripheral side of the load-bearing portion 100 to form an enclosed constraint structure. By the coordinated force of each lateral constraint body 210, the lateral deformation of the load-bearing portion 100 can be further effectively limited.

[0039] It should be noted that the first horizontal direction, the second horizontal direction and the direction perpendicular to the soft soil foundation are perpendicular to each other, and the shape of the outer periphery of the bearing portion 100 includes but is not limited to a rectangle, a trapezoid and the like.

[0040] refer to Figure 1 and Figure 2 In some embodiments, the load-distributing structure 120 includes an isolation and drainage layer 121 disposed perpendicular to the soft soil foundation, away from the load-bearing structure 110. The isolation and drainage layer 121 is configured to conform to the soft soil foundation and has a fiber interwoven structure, which provides the isolation and drainage layer 121 with both load-bearing capacity and water-permeability. For example, the isolation and drainage layer 121 can be composed of a material with water-permeable and soil-blocking properties, such as geotextile. The geotextile is formed into a fiber interwoven structure through a needle-punching or weaving process, and has a specific porosity and equivalent pore size. This allows for water-permeable and soil-blocking properties, preventing soil from the soft soil foundation from squeezing into the load-bearing portion 100, thereby preventing the construction road structure from partially sinking, and thus improving the stability of the construction road structure.

[0041] The fiber interwoven structure is connected to a second controller, which is connected to a soil moisture sensor via a second line. The soil moisture sensor is movably connected to the lateral constraint body 210. The second controller receives the moisture of the soft soil foundation sensed by the soil moisture sensor from the second line and controls the mesh diameter of the fiber interwoven structure based on the moisture.

[0042] Specifically, the fiber interwoven body is made of a plurality of rectangular small pieces of fabric, each of which is provided with stitched sections and non-stitched sections at intervals on its edge. The spliced ​​edges of two adjacent small pieces of fabric are intermittently stitched, i.e., stitching lines are provided at regular intervals, and a movable gap is formed in the unstitched area, so that the small pieces of fabric can slide relative to each other within the gap by pulling. Alternatively, elastic sutures can be used for stitching, and the elastic deformation of the sutures allows the small pieces of fabric to produce limited displacement. When the humidity of the soft soil foundation is low, the second controller controls the driving element to prevent the small pieces from moving relative to each other, thereby increasing the equivalent mesh diameter to ensure drainage capacity and avoid the reduction of the bearing capacity of the soft soil foundation due to water accumulation. When the humidity of the soft soil foundation is high, the equivalent mesh diameter can be reduced to further improve the soil resistance effect. The adjustability of the fiber interwoven body is beneficial to adapting to the deformation requirements under different load conditions, and facilitates the fiber interwoven body to fit closely to the surface of the soft soil foundation.

[0043] The isolation and drainage layer 121 is covered on the surface of the soft soil foundation by mechanical spreading or manual laying, blocking the soft soil foundation from other parts of the load distribution structure 120, so that a physical separation barrier is formed between the load distribution structure 120 and the soft soil foundation. When the construction road structure is subjected to vehicle or mechanical loads, the isolation and drainage layer 121, by virtue of its own tensile strength and puncture resistance, effectively prevents the material particles of the load-bearing structure 110 and the load distribution structure 120 from sinking into the soft soil foundation, ensuring that the bottom of the construction road structure is in uniform contact with the soft soil foundation, so that the load can be evenly distributed, and avoiding structural subsidence caused by local stress concentration.

[0044] In addition, during the construction of the construction road structure, a part of the construction road structure needs to be watered and solidified. The permeable characteristics of the isolation drainage layer 121 enable the water sprayed on the surface of the construction road structure to penetrate into the soft soil base through its fiber pores, effectively reducing the pore water pressure of the soft soil foundation and accelerating the soil consolidation process. As the pore water is discharged, the shear strength of the soft soil foundation gradually increases, thereby enhancing the bearing capacity of the entire construction road structure.

[0045] In addition to the fiber interwoven body, the isolation and drainage layer 121 may also include composite geomembrane, bentonite waterproof blanket, foam concrete and other structures to cooperate with the fiber interwoven body to achieve drainage, filtration, isolation, anti-seepage, support and other functions, thereby improving the performance and adaptability of the isolation and drainage layer 121.

[0046] refer to Figure 1 and Figure 2 In some embodiments, the second controller controls the mesh diameter of the fiber interwoven structure based on humidity through the following formula: D=c / (ln W+W), where D is the mesh diameter of the fiber interwoven structure, c is the second constant, and W is humidity.

[0047] Specifically, taking c=300 as an example, the results of the embodiment of the present application and the comparative example are as follows:

[0048] Among them, W is the sensed humidity of the soft soil foundation, D is the mesh diameter of the fiber interwoven structure of this scheme, P is the bearing capacity of this scheme, Dsmall is the comparison ratio of the smaller mesh diameter, Psmall is the bearing capacity of the comparison ratio of the smaller mesh diameter, Dlarge is the comparison ratio of the larger mesh diameter, and Plarge is the bearing capacity of the comparison ratio of the larger mesh diameter. It should be noted that the bearing capacity is the maximum mass that can be sustained within a unit area without causing subsidence.

[0049] refer to Figure 1 and Figure 2 In some embodiments, the load distribution structure 120 further includes a grid layer 122. The grid layer 122 is located on the side of the isolation and drainage layer 121 close to the load-bearing structure 110 in a direction perpendicular to the soft soil foundation, and the grid layer 122 is arranged in close contact with the isolation and drainage layer 121. The grid layer 122 includes a first rod group and a second rod group arranged in layers in a direction perpendicular to the soft soil foundation. The first rod group includes a plurality of first rods arranged in parallel and spaced relation to each other, and the second rod group includes a plurality of second rods arranged in parallel and spaced relation to each other. The first rods are perpendicular to the second rods, thereby forming a plurality of grid units 1221. The first rods have The second rod is inserted into the slider, and the second rod is connected to a driver. The driver is connected to the soil moisture sensor through a third line to receive the moisture of the soft soil foundation sensed by the moisture sensor, and controls the sliding of the second rod based on the moisture to adjust the size of the grid unit 1221. Thus, the size of the grid unit 1221 can be adjusted according to the moisture of the soft soil foundation to optimize the load-bearing capacity of the load-distributing structure 120, which is beneficial to enhancing the adaptability of the load-distributing structure 120 to the deformation of the soft soil foundation, and is beneficial to further improving the stability of the construction road structure and enhancing the bearing capacity of the construction road structure. Specifically, the grid layer 122 includes a first rod group and a second rod group stacked in a direction perpendicular to the soft soil foundation, the first rod group includes a plurality of first rod members, each of which extends and is arranged along the second horizontal direction, and each of the first rod members is arranged at intervals along the first horizontal direction, the second rod group includes a plurality of second rod members, each of which extends and is arranged along the first horizontal direction, and each of the rod members is arranged at intervals along the second horizontal direction; or, each of the first rod members extends and is arranged along the first horizontal direction, and each of the first rod members is arranged at intervals along the second horizontal direction, each of the second rod members extends and is arranged along the second horizontal direction, and each of the second rod members is arranged at intervals along the first horizontal direction.

[0050] The rods of the first rod group and the second rod group intersect with each other to form a plurality of adjacent grid units 1221. The size of the grid unit 1221 can be adjusted by changing the spacing between the rods. For example, a slider is provided on the first rod, and the second rod is inserted into the slider to achieve a sliding connection with the first rod to adjust the size of the grid unit 1221. The rods can be made of metal rods or wooden rods (such as pine, eucalyptus and other woods), and the cross-sectional shape of the rods includes but is not limited to circular, square and other shapes.

[0051] After the size of the grid unit 1221 is adjusted, the two adjacent rods above and below can be directly overlapped, or they can be connected by mortise and tenon connection, bolt fixation or metal fastener binding to ensure the overall rigidity and stability of the grid layer 122. For example, when using round wooden rods, mortise and tenon can be opened at the ends of the rods, and the two layers of rods can be embedded and reinforced with wooden pins. If metal rods are used, reliable connection can be achieved by welding or binding.

[0052] Therefore, the grid layer 122 can diffuse the load transferred by the bearing structure 110 to the surroundings, increase the supporting strength of the load-distributing structure 120, avoid local stress concentration, and the multiple grid units also have a drainage function, so that the moisture that penetrates into the grid layer 122 can continue to penetrate into the isolation drainage layer 121 through the grid layer 122, and then penetrate into the soft soil foundation through the isolation drainage layer 121, so as to accelerate the consolidation process of the construction road structure, and cooperate with the isolation drainage layer 121 to improve the overall drainage efficiency of the construction road structure.

[0053] refer to Figure 1 and Figure 2 In some embodiments, the driver is connected to the soil density sensor through a fourth line to receive the density of the soft soil foundation sensed by the soil density sensor, and controls the sliding of the second rod based on the density to adjust the size of the grid unit 1221. On the basis of humidity sensing, the size of the grid unit 1221 is further adjusted in combination with the density of the soft soil foundation, which is beneficial to further optimize the load distribution performance of the grid layer 122.

[0054] Specifically, the driver is connected to the soil density sensor via a fourth line. The soil density sensor is used to sense the density of the soft soil foundation and transmit the sensed density signal to the driver. After receiving the signal, the driver controls the sliding of the second rod based on the density of the soft soil foundation: When the soil moisture sensor senses that the soft soil foundation has a high humidity, if the soil density sensor senses that the foundation density is relatively small, the driver will control the second rod to slide relative to the first rod, so that the size of the grid unit 1221 is appropriately reduced to ensure that the grid unit 1221 can disperse the stress more concentratedly to the surrounding relatively solid soil under the action of the load, thereby enhancing the load support capacity.

[0055] When the soil moisture sensor senses that the soft soil foundation has moderate moisture, if the soil density sensor senses that the foundation density is large, the driver will control the second rod to slide relative to the first rod, so that the size of the grid unit 1221 is appropriately increased. The larger grid unit 1221 can disperse the load over a wider range, reduce the pressure on the local foundation, and further optimize the load dispersion effect.

[0056] It should be noted that the specific adjustment method is not limited to the above examples and can be adjusted according to needs.

[0057] refer to Figure 1 and Figure 2 In some embodiments, the grid layer 122 includes a plurality of grid units 1221, and the load distribution structure 120 further includes graded gravel 123. The grid units 1221 are filled with graded gravel 123. The graded gravel 123 includes gravel particles of different sizes. The larger particles form a skeleton structure, and the smaller particles fill the gaps between the skeleton structures. When an external load is applied, the gravel particles of different sizes will squeeze each other and lock, that is, the larger gravel particles limit the movement of the smaller gravel particles through their edges and rough surfaces, and the frame of the grid unit 1221 can limit the movement of the graded gravel 123, which is beneficial to further improve the stability of the construction road structure.

[0058] Specifically, the graded gravel 123 includes gravels of various particle sizes. For example, the graded gravel 123 includes gravels of two different particle size ranges. The particle size range of the first type of gravel is 1 cm to 2 cm, and the particle size range of the second type of gravel is 3 cm to 4 cm. The blending ratio of the first type of gravel to the second type of gravel is 1:1 (weight ratio). The blended graded gravel 123 has a through pore network inside. When water penetrates into the grid unit 1221, it can infiltrate downward or be discharged laterally through the gravel pores. While taking into account the drainage effect of the construction road structure, it can also reduce the long-term erosion of water on the grid layer 122 material, extend the service life of the construction road structure, and benefit the recycling of the grid layer 122.

[0059] It should be noted that crushed stone particles are usually irregular in shape. For irregular crushed stone particles, the above particle size should be understood as the particle size equivalent value. For example, irregular particles are placed in a standard sieve and vibrated. The minimum sieve hole size that the crushed stone particles can pass through is defined as the particle size of the particle.

[0060] refer to Figure 1 and Figure 2 In some embodiments, the graded crushed stone 123 covers the side of the grid layer 122 close to the bearing structure 110 in a direction perpendicular to the soft soil foundation, that is, the height of the graded crushed stone 123 exceeds the height of the grid layer 122. When construction vehicles or equipment are traveling or working on the road surface, pressure first acts on the graded crushed stone 123. Since the crushed stones of different particle sizes in the graded crushed stone 123 are embedded and filled with each other, the pressure can be effectively dispersed, so that the pressure is evenly transmitted to the grid layer 122, thereby effectively preventing the rods constituting the grid layer 122 from locally squeezing the isolation and drainage layer 121, and further effectively preventing the isolation and drainage layer 121 from sinking due to local pressure, which is beneficial to further improve the stability of the construction road structure.

[0061] In addition, the graded crushed stone 123 layer can provide a smoother construction surface, and the surface flatness can be controlled by adjusting the particle size distribution and compaction process of the graded crushed stone 123. The smooth surface facilitates the subsequent laying of other materials.

[0062] refer to Figure 1 and Figure 2 In some embodiments, the bearing structure 110 further includes a rubble layer 124. The rubble layer 124 is located between the bearing structure 110 and the isolation and drainage layer 121 in a direction perpendicular to the soft soil foundation. The rubble layer 124 includes a plurality of rubble stones, and each rubble stone forms a rigid skeleton structure through point contact. When the load of construction machinery or vehicles acts on the surface of the rubble layer 124, the load is interlocked and bitten by the rubble stone blocks, realizing a wider range of stress diffusion in the directions horizontally and perpendicular to the soft soil foundation, which is beneficial to reducing the pressure applied by the rubble layer 124 to the lower structure, thereby maintaining the stability of the construction road structure.

[0063] Specifically, the rubble layer 124 includes a plurality of rubble blocks, each of which has a particle size of no more than 50 cm, and in the rubble layer 124, the weight of rubble blocks with a particle size of less than 30 cm accounts for less than 30%. The bottom of the rubble layer 124 can be fitted with an isolation drainage layer 121, a grid layer 122 or graded gravel 123. Taking the case where the graded gravel 123 is fitted under the rubble layer 124 as an example, the graded gravel 123 covers the grid layer 122, and the upper side of the graded gravel 123 is fitted with the rubble layer 124. When bearing a load, the rubble layer 124 can disperse the load and then transfer the load to the graded gravel 123, so that the pressure applied to the graded gravel 123 is more evenly distributed. Therefore, the graded gravel 123 can cooperate with the grid layer 122 to further disperse the pressure, so that the pressure applied to the isolation drainage layer 121 is more uniform, and the construction road structure is more stable.

[0064] refer to Figure 1 and Figure 2 In other embodiments, multiple rubble stones are stacked to form a rubble stone layer 124. The outer contour of the rubble stone blocks is irregular, and there is a gap between two adjacent rubble stone blocks, which is filled with crushed stone. When the rubble stone layer 124 is subjected to external loads, the crushed stone can effectively fill the gaps between the rubble stone blocks and evenly distribute the load to various parts of the rubble stone layer 124, so that a denser structure is formed inside the rubble stone layer 124, which is beneficial to further improve the bearing capacity of the rubble stone layer 124.

[0065] refer to Figure 1 and Figure 2 In some embodiments, the load-bearing structure 110 includes a pavement layer 111 and a subbase layer 112. Subbase layer 112 is located between pavement layer 111 and load-distributing structure 120 in a direction perpendicular to the soft soil foundation. One side of subbase layer 112 is aligned with pavement layer 111, while the opposite side of subbase layer 112 is aligned with load-distributing structure 120. Pavement layer 111 is configured to connect with the adjacent road surface. Pavement layer 111 can provide high compressive strength and rigidity to directly bear the load of vehicles or construction equipment. Subbase layer 112 supports pavement layer 111, effectively preventing brittle fracture of pavement layer 111. The collaboration between pavement layer 111 and subbase layer 112 helps ensure the stability of the load-bearing structure 110.

[0066] Specifically, the base layer 112 is a semi-rigid structure made of cement stone powder slag and other materials mixed and pressed together, which has high compressive strength and bending and tensile strength, and is used to support the pavement layer 111 to ensure the stability of the pavement layer 111. The pavement layer 111 is a rigid structure paved with plain concrete, which can provide greater rigidity to directly carry vehicles or construction equipment. The integrity of the rigid structure enables the pavement layer 111 to disperse local loads to the surroundings, thereby improving the stability of the bearing structure 110.

[0067] It should be noted that in order to ensure the support of the subbase layer 112 for the pavement layer 111, the stiffness ratio of the subbase layer 112 to the pavement layer 111 can be adaptively adjusted. For example, the stiffness ratio of the subbase layer 112 to the pavement layer 111 ranges from 1 / 3 (inclusive) to 1 (exclusive).

[0068] refer to Figure 1 and Figure 2 In other embodiments, the load distribution structure 120 includes an isolation and drainage layer 121, a grid layer 122, a graded crushed stone 123 and a rubble stone layer 124. The grid layer 122 is embedded in the graded crushed stone 123, and the graded crushed stone 123 fills each grid unit 1221 of the grid layer 122 and covers the grid layer 122. The two constitute a composite layer. Along the direction perpendicular to the soft soil foundation, the rubble stone layer 124, the composite layer and the isolation and drainage layer 121 are arranged in sequence. The isolation and drainage layer 121 is attached to the soft soil base layer. The composite layer is located between the isolation and drainage layer 121 and the rubble stone layer 124. The subbase layer 112 is located between the pavement layer 111 and the rubble stone layer 124. The lower side of the subbase layer 112 is attached to the rubble stone layer 124, and the upper side of the subbase layer 112 is attached to the pavement layer 111. Through the cooperation between the layers, the construction road structure has both bearing capacity and load distribution capacity, and can provide more stable support.

[0069] refer to Figure 1 and Figure 2 In some embodiments, the lateral restraint 210 includes a restraint plate 211 and at least two restraint piles 212 spaced apart along a second horizontal direction. Along the first horizontal direction, the restraint plate 211 is connected to the side of the restraint pile 212 closest to the bearing portion 100, and the restraint plate 211 is in contact with the bearing portion 100. Each restraint pile 212 is configured to be inserted into the soft foundation in a direction perpendicular to the soft foundation, with the first horizontal direction, the second horizontal direction, and the direction perpendicular to the soft foundation being mutually perpendicular. Each restraint pile 212 is used to secure the lateral restraint 210. The restraint plate 211 is exposed outside the soft foundation and is used to restrict the movement of the bearing portion 100, thereby making the bearing portion 100 more stable and thus ensuring the stability of the construction road structure.

[0070] Specifically, along the first horizontal direction, lateral restraint bodies 210 are arranged on opposite sides of the bearing part 100. The lateral restraint bodies 210 on any side of the bearing part 100 include at least two restraint piles 212 arranged at intervals along the second direction. Each restraint pile 212 is configured to be inserted into the soft foundation in a direction perpendicular to the soft foundation, and a portion of each restraint pile 212 is exposed from the soft foundation, providing an installation position for the restraint plate 211 while ensuring the stability of the lateral restraint body 210. The restraint piles 212 exposed from the soft foundation are connected to a restraint plate 211 on the side close to the bearing part 100, and the restraint plate 211 is used to fit the bearing part 100. On the one hand, the restraint plate 211 can limit the bearing part 100 from moving toward both sides along the first horizontal direction, thereby ensuring the stability of the bearing part 100. On the other hand, the restraint plate 211 connects each restraint pile 212 in series, so that each restraint pile 212 cooperates to resist the tendency of the bearing part 100 to move sideways, and the overall construction road structure is more stable.

[0071] It should be noted that the restraining piles 212 can be piles such as pine wood piles, channel steels, and steel sheet piles, and the restraining plates 211 can be plates such as plywood and steel plates.

[0072] refer to Figure 1 and Figure 2 In some embodiments, the lateral constraint body 210 further includes a first connecting member 220 and at least two constraint piles 212 spaced apart along the second horizontal direction. Along the first horizontal direction, the first connecting member 220 is connected to the side of each constraint pile 212 away from the bearing portion 100. Each constraint pile 212 is configured to be inserted into the soft foundation in a direction perpendicular to the soft foundation. The first horizontal direction, the second horizontal direction, and the direction perpendicular to the soft foundation are mutually perpendicular. The first connecting member 220 is used to connect the constraint piles 212 in series to ensure that the constraint piles 212 can jointly limit the movement of the bearing portion 100 along the first horizontal direction. The force between the constraint piles 212 is more uniform, and the first connecting member 220 is located on the side of each constraint pile 212 away from the bearing portion 100, which can avoid interfering with the arrangement of the bearing portion 100.

[0073] refer to Figure 1 and Figure 2 In some embodiments, the lateral restraint body 210 further includes a second connecting member 230. Along the first horizontal direction, the second connecting member 230 penetrates the load-bearing portion 100, and the second connecting member 230 is connected to the first connecting member 220 on one side of the load-bearing portion 100, and the other end of the second connecting member 230 is connected to the first connecting member 220 on the other side of the load-bearing portion 100, thereby connecting the two first connecting members 220 on opposite sides of the load-bearing portion 100 in series, so that the lateral restraint bodies 210 on opposite sides of the load-bearing portion 100 can pull each other, which is beneficial to further improve the stability of the construction road structure.

[0074] Specifically, along the first horizontal direction, lateral restraint bodies 210 are arranged on opposite sides of the bearing portion 100. The lateral restraint bodies 210 include a first connecting member 220, a second connecting member 230, and at least two restraint piles 212. Taking the lateral restraint body 210 on one side of the bearing portion 100 as an example, each restraint pile 212 is inserted into the soft soil foundation in a direction perpendicular to the soft soil foundation, and each restraint pile 212 is arranged at intervals along the second horizontal direction. The first connecting member 220 is connected to the side of each restraint pile 212 away from the bearing portion 100, and the second connecting member 230 extends along the first horizontal direction. The bearing portion 100 includes a bearing structure 110 and a load distribution structure 120 stacked from top to bottom. The second connecting member 230 can pass through the bearing structure 110 or the load distribution structure 120 to extend from one side of the bearing portion 100 to the other opposite side, thereby realizing the connection of the lateral restraints 210 on the opposite sides of the bearing portion 100. Therefore, when the bearing portion 100 has a tendency to move toward either side, the lateral restraints 210 on both sides of the bearing portion 100 can jointly limit the movement of the bearing portion 100 to further improve the stability of the construction road structure.

[0075] refer to Figure 1 and Figure 2 In other embodiments, the bearing structure 110 includes a pavement layer 111 and a base layer 112, and the lateral constraint body 210 includes a connecting pipe. The base layer 112 can be cement stone powder slag. The connecting pipe is laid in the base layer along the first horizontal direction so that the tube cavity of the connecting pipe extends along the first horizontal direction. The cement stone powder slag can form a flatter paving plane, and the cement stone powder slag can better fit the connecting pipe. Therefore, on the basis of taking into account the supporting stability of the base layer 112, it is convenient to penetrate the second connecting member 230, and the construction of the road structure is more convenient.

[0076] refer to Figure 1 and Figure 2 According to a construction method of the present application, for constructing the construction road structure in any of the above embodiments, the specific steps of the construction method are as follows: After draining and leveling the soft soil foundation, two lateral restraints 210 are driven into the soft soil foundation at intervals along a first horizontal direction. The bearing portion 100 is arranged between the two lateral restraints 210, and the two lateral restraints 210 are respectively attached to one side of the bearing portion 100. Thus, the present application drives the lateral restraints 210 into the soft soil foundation and arranges the bearing portion 100 on the soft soil foundation. The lateral restraints 210 are attached to the bearing portion 100 to maintain the structural stability of the bearing portion 100. As a result, the lateral restraints 210 and the bearing portion 100 can stably bear the load, eliminating the need to excavate the soft soil area for large-scale replacement and filling. This helps reduce the amount of earthwork and improves the efficiency of road construction.

[0077] refer to Figure 1 and Figure 2 In some embodiments, an isolation and drainage layer 121, a grid layer 122, a graded crushed stone 123, a rubble stone layer 124, a subbase layer 112, and a pavement layer 111 are laid on the soft soil foundation in sequence along a direction perpendicular to the soft soil foundation to form a bearing portion 100, wherein the isolation and drainage layer 121, the grid layer 122, the graded crushed stone 123, and the rubble stone layer 124 constitute a load distribution structure 120 for dispersing the borne load, and the subbase layer 112 and the pavement layer 111 constitute a bearing structure 110 for directly supporting loads such as vehicles or construction equipment. By setting up a multi-layer bearing structure, it is possible to ensure that on the basis of stable bearing of the bearing portion 100, the load pressure is dispersed downward step by step to avoid local subsidence of the construction road structure.

[0078] refer to Figure 1 and Figure 2 In some embodiments, after the load-bearing portion 100 is arranged, the lateral restraint bodies 210 on both sides of the load-bearing portion 100 are connected so that when the load-bearing portion 100 tends to move to both sides, the lateral restraint bodies 210 on both sides can jointly support the load-bearing portion 100, further improving the stability of the load-bearing portion 100.

[0079] refer to Figure 1 and Figure 2 According to the construction method of the above embodiment, specifically, the construction method of the present application includes the steps of drainage and leveling, piling and boarding, covering with cloth and filling with stones, and burying pipes and filling, which are further described below: Drainage and leveling: Drain the water from the top of the soft soil foundation and level the site, that is, fill and excavate the low-lying and high-altitude positions in the soft soil area to make the construction site flat.

[0080] Piling fence: Measure and lay out the lines on both sides of the road, forming boundary lines on both sides of the road that are spaced apart along the first horizontal direction and extend along the second horizontal direction. Drive multiple constraint piles 212 into the soft soil foundation along the boundary lines on both sides of the road to form two rows of constraint piles 212, so that on any road boundary line, each constraint pile 212 is spaced apart along the second horizontal direction, and along the first horizontal direction, the constraint plate 211 is connected to the side where the two rows of constraint piles 212 face each other.

[0081] Among them, the lateral constraint body 210 includes a constraint plate 211 and multiple constraint piles 212. The constraint plate 211 can be a plywood with a thickness of 1.2 cm to 1.8 cm. The constraint plate 211 can be fixed to the constraint piles 212 with steel nails. The constraint piles 212 can be pine piles. One end of the pine pile is sharpened. The entire pine pile is straight without scars, cracks, insect bites, rot and other adverse phenomena, and the pine piles are carbonized after peeling.

[0082] When driving pine piles, a crawler pile driver is used to clamp the pine piles, and the tip of the pine pile is pressed into the soft foundation in a direction perpendicular to the soft foundation. The allowable tolerance of the verticality of the pine pile is less than 1%, and when driving piles, the driving speed is slowed down after the tip of the pine pile passes through the soft soil and enters the stable bearing layer until the height of the pine pile exposed in the soft foundation is 1m. The diameter of the pine pile is 12cm to 15cm, the length of the pine pile is 3m to 5m, and the interval between two adjacent pine piles in the same row is 0.5m to 0.8m. The length and driving interval of the pine piles can be adjusted according to the state of the soft foundation. When the soft foundation is in a plastic state to a soft plastic state, the length of the pine pile and the interval between two adjacent pine piles take the maximum value. When the soft foundation is in a soft plastic state to a plastic state, the length of the pine pile and the interval between two adjacent pine piles take the minimum value.

[0083] It should be noted that the width direction of the road is the first horizontal direction, and the length direction of the road is the second horizontal direction.

[0084] Covering and stone filling: Geotextile is laid on the soft soil foundation between the two side constraints 210 to form an isolation drainage layer 121, and a double layer of spaced rods are laid on the isolation drainage layer 121 to form a grid layer 122. The grid layer 122 has multiple grid units. After the grid layer 122 is formed, graded gravel 123 is backfilled to fill the grid units 1221 until the graded gravel 123 covers the grid layer 122, and then rubble blocks are backfilled on the graded gravel 123 to form a rubble stone layer 124.

[0085] Before laying the geotextile, clean the pile head hard stubble, stones and other sharp objects to avoid puncturing the geotextile, and spread the geotextile flat and straight to avoid wrinkles. The width of the geotextile is ≥ the spacing of the pine piles on both sides of the road. The weight of the geotextile is ≥300g / m2, the breaking strength is ≥60kN / m, and the tearing strength (referring to the ability of the material to resist tearing damage when it is torn) is greater than 0.42kN. The grid layer 122 is paved with double-layer round wooden poles. The multiple round wooden poles of the first pole group are spaced along the first horizontal direction. The multiple round wooden poles of the second pole group are arranged at intervals along the second horizontal direction. The round wooden poles can be made of pine, eucalyptus, etc. The diameter of the round wooden poles is 12cm to 15cm, and the distance between two adjacent round wooden poles in the same layer is 0.6m to 1m. When the soft soil foundation is in a fluid plastic state to a soft plastic state, the distance between two adjacent round wooden poles in the same layer takes a larger value. When the soft soil is in a soft plastic state to a plastic state, the distance between two adjacent round wooden poles in the same layer takes a smaller value. The intersection of the upper and lower round wooden poles is tied with steel wire.

[0086] In addition, positioning piles 130 can be installed before laying the grid layer 122. Positioning piles 130 can be made of thin bamboo poles or small wooden stakes. The interval between adjacent positioning piles 130 can be 2 to 3 meters. Positioning piles 130 are used to position the grid layer 122. Graded gravel 123 includes particles with a size of 1 to 2 cm and particles with a size of 3 to 4 cm, with a mixing ratio of 1:1. The height of graded gravel 123 above the top of the grid layer 122 is ≥ 10 cm. For example, the laid thickness of graded gravel 123 can be 300 mm.

[0087] When backfilling the rubble, if there are gaps between the rubble blocks, crushed stone is used to assist in filling. The height of the backfill rubble layer 124 is 10 cm to the top of the constraint pile 212. The rubble blocks are made of fresh hard rocks with a maximum particle size of ≤50 cm, and the proportion of rubble blocks with a particle size of less than 30 cm is ≥30%. The laying thickness of the rubble layer 124 can be 500 mm.

[0088] Buried pipe filling: backfill part of cement stone powder slag on the rubble stone layer 124, arrange connecting pipes on the cement stone powder slag, and then continue to backfill the cement stone powder slag to form a subbase layer 112, and pour plain concrete on the subbase layer 112 to form a pavement layer 111.

[0089] After the cement-stone powder slag stabilization layer is paved, it is rolled 8-10 times with a 15-ton pressure until the compaction coefficient λc is ≥ 0.92. The subbase layer 112 can be laid 200mm thick and contain 6% cement-stone powder. The pavement layer 111 is constructed of plain concrete with a C20 grade and a thickness of 100-150mm. The concrete should be finished to a rough surface, and expansion joints should be cut on the side of the pavement layer 111 facing away from the subbase layer 112. Adjacent expansion joints should be spaced 6 meters apart along the length of the road (the second horizontal direction). The plain concrete is poured and vibrated to compaction, and watered and maintained after pouring until the required strength is achieved.

[0090] In addition, after the pavement layer 111 is cast and formed, a second connecting member 230 is passed through the lumen of the connecting pipe to connect the two lateral restraining bodies 210. Specifically, a first connecting member 220 (purlin) is installed on the periphery of the restraining pile 212 away from the side of the load-bearing part 100, and the second connecting member 230 is passed through the lumen of the connecting pipe to connect the first connecting members 220 located on both sides of the load-bearing part 100.

[0091] Among them, the first connecting member 220 can be made of 100mm square steel, and is firmly tied to the constraint pile 212 with steel wire at intervals of 1m. Multiple connecting pipes can be arranged, and the intervals between adjacent connecting pipes are 3m along the second horizontal direction, so that multiple second connecting members 230 can be arranged. Adjacent second connecting members 230 are arranged at intervals of 3m along the second horizontal direction. The second connecting member 230 can be made of Φ48×3.5mm steel pipe made of Φ20 round steel bars. The first connecting member 220 and the second connecting member 230 can be connected by threads.

[0092] The embodiments of the present application have been described in detail above with reference to the accompanying drawings. However, the present application is not limited to the above embodiments. Various modifications can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present application. In addition, the embodiments of the present application and the features of the embodiments can be combined with each other unless there is a conflict.

Claims

1. A construction road structure, characterized in that: include: The bearing portion includes a bearing structure and a load distributing structure stacked in a direction perpendicular to the soft soil foundation, wherein the surface of the bearing structure away from the soft soil foundation is configured to engage with the adjacent road surface, and the thickness of the bearing portion is adjustable; a constraint portion comprising at least two lateral constraint bodies, the at least two lateral constraint bodies being arranged on opposite sides of the bearing portion in a direction parallel to the soft soil foundation and being in contact with the bearing portion, a portion of each lateral constraint body being configured to be inserted into the soft soil foundation in a direction perpendicular to the soft soil foundation, and a soil density sensor being provided at an end of the lateral constraint body inserted into the soft soil foundation; The first controller is connected to the soil density sensor via a first line. The first controller receives the soil density of the soft soil foundation sensed by the soil density sensor from the first line and controls the thickness of the bearing part based on the soil density.

2. The construction road structure according to claim 1, characterized in that: The first controller controls the thickness of the bearing portion based on the soil density using the following formula: H=σ / (ρ 2 +ρ), wherein H is the thickness of the bearing portion, σ is a first constant, and ρ is the soil density.

3. The construction road structure according to claim 1, characterized in that: Along the direction perpendicular to the soft soil foundation, the load distribution structure includes an isolation drainage layer arranged on a side away from the load-bearing structure, and the isolation drainage layer is configured to fit the soft soil foundation. The isolation drainage layer has a fiber interwoven structure, and the fiber interwoven structure is connected to a second controller. The second controller is connected to a soil moisture sensor through a second line, and the soil moisture sensor is movably connected to the lateral constraint body. The second controller receives the humidity of the soft soil foundation sensed by the soil moisture sensor from the second line, and controls the mesh diameter of the fiber interwoven structure based on the humidity.

4. The construction road structure according to claim 3, characterized in that: The second controller controls the mesh diameter of the fiber interwoven structure based on the humidity using the following formula: D=c / (ln W+W), wherein D is the mesh diameter of the fiber interwoven structure, c is the second constant, and W is the humidity.

5. The construction road structure according to claim 3, characterized in that: The load distribution structure also includes a grid layer, which is located on the side of the isolation and drainage layer facing the load-bearing structure in a direction perpendicular to the soft foundation, and the grid layer is arranged in close contact with the isolation and drainage layer. The grid layer includes a first rod group and a second rod group arranged in layers in a direction perpendicular to the soft foundation, the first rod group includes a plurality of first rods arranged in parallel and spaced apart from each other, the second rod group includes second rods arranged in parallel and spaced apart from each other, the first rods are perpendicular to the second rods, and a plurality of grid units are constructed, the first rods have a slider, the second rods pass through the slider, and the second rods are connected to a driver, the driver is connected to the soil moisture sensor through a third line to receive the moisture of the soft foundation sensed by the moisture sensor, and controls the sliding of the second rod based on the moisture to adjust the size of the grid unit.

6. The construction road structure according to claim 5, characterized in that: The driver is connected to the soil density sensor via a fourth line to receive the density of the soft soil foundation sensed by the soil density sensor, and controls the sliding of the second rod based on the density to adjust the size of the grid unit.

7. The construction road structure according to claim 5, characterized in that: The load distribution structure further includes graded crushed stones, and the grid units are filled with the graded crushed stones.

8. The construction road structure according to any one of claims 3 to 7, characterized in that: The bearing structure further includes a rubble stone layer, and along the direction perpendicular to the soft soil foundation, the rubble stone layer is located between the bearing structure and the isolation and drainage layer.

9. The construction road structure according to claim 1, characterized in that: The load-bearing structure includes a pavement layer and a subbase layer. Along the direction perpendicular to the soft soil foundation, the subbase layer is located between the pavement layer and the load distribution structure. One side of the subbase layer is in contact with the pavement layer, and the other side opposite to the subbase layer is in contact with the load distribution structure. The pavement layer is configured to connect with the adjacent pavement layer.

10. The construction road structure according to claim 1, characterized in that: The lateral restraining body includes a first connecting member, a second connecting member, a restraining plate and at least two restraining piles arranged at intervals along a second horizontal direction. Along the first horizontal direction, the restraining plate is connected to the side of the restraining pile close to the bearing part and fits the bearing part. The first connecting member is connected to the side of each restraining pile away from the bearing part. The second connecting member passes through the bearing part, and one end of the second connecting member is connected to the first connecting member on one side of the bearing part, and the other end of the second connecting member is connected to the first connecting member on the other side of the bearing part. Each restraining pile is configured to be inserted into the soft foundation along the direction perpendicular to the soft foundation. The first horizontal direction, the second horizontal direction and the direction perpendicular to the soft foundation are perpendicular to each other.

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