Tree root pile construction method based on coastal embankment

Abstract

The present invention relates to the field of tree root pile construction, and in particular to a tree root pile construction method based on coastal embankments, comprising a tree root pile construction module drilling a construction hole, hanging a steel cage in the construction hole, a data acquisition module acquiring construction hole depth data and temperature data, a central control module adjusting filling data in each temperature control cylinder assembly according to the depth data and the temperature data with a preset temperature control strategy, the tree root pile construction module installing the temperature control cylinder assembly on the inner surface of the construction hole according to the corresponding depth, and filling the construction hole, the tree root pile construction module pouring the filled construction hole, and adjusting the temperature of the construction hole in a preset temperature control manner, the present invention adjusts the temperature of several depth intervals by prefabricating a temperature control cylinder assembly filled with heat absorbing or exothermic materials, so that the slurry is always between preset temperature thresholds during the hardening process, thereby improving the pile quality and service life of the tree root pile.

Description

Technical Field

[0001] The invention relates to the field of tree root pile construction, and in particular to a tree root pile construction method based on coastal embankments. Background Art

[0002] Tree root pile technology is a technology used in the field of construction engineering. It is mainly used for foundation reinforcement, to replace the foundation of existing buildings when constructing underground tunnels under existing buildings, and to install under buildings on slopes and docks to improve the foundation bearing capacity and slope stability. It is suitable for reinforcement projects on foundation soils such as silt, silty soil, clay, silt, sand, gravel soil, loess and artificial fill.

[0003] Chinese Patent Publication No.: CN112900420B discloses a tree root pile construction device, including a mounting barrel, a first servo motor is fixed inside the mounting barrel, a turntable is fixed to the output shaft of the first servo motor, teeth are arranged on the outer side of the turntable, gears are meshed with the teeth, a screw rod is fixed on the gear, both ends of the screw rod are rotatably connected to a mounting box, a transmission nut is threadedly connected to the screw rod, the transmission nut is embedded in a first connecting block, a mounting plate is fixed to the upper end of the first connecting block, a rotating mechanism is arranged on the mounting plate, an anchor rod is arranged on one side of the rotating mechanism through a one-way valve, a steel strand is arranged in the anchor rod, a drill bit is fixed to one end of the anchor rod, a suspension rod is arranged above the mounting barrel, the suspension rod is fixedly connected to the mounting barrel through a second connecting rod, a grouting pipe is arranged in the suspension rod, and the grouting pipe is connected to the rotating mechanism. The bearing capacity of the cast-in-place pile is enhanced by the above structure.

[0004] It can be seen that the traditional root pile construction method cannot determine the hardening speed and hardening strength of the slurry. Summary of the invention

[0005] To this end, the present invention provides a tree root pile construction method based on coastal embankments, so as to overcome the problem in the prior art that the construction period and slurry hardening performance cannot be guaranteed due to the inability to determine the influence of the temperature of the construction hole on the slurry hardening speed and the tree root pile performance, thereby resulting in substandard tree root pile construction.

[0006] To achieve the above object, the present invention provides a tree root pile construction method based on coastal embankments, comprising:

[0007] Step S1, drilling a construction hole using a tree pile construction module, hanging a steel cage in the construction hole, and connecting an electrode heating module to the steel cage;

[0008] Step S2, using a data acquisition module to acquire construction hole depth data and corresponding temperature data;

[0009] Step S3, the tree pile construction module prefabricates a plurality of temperature regulating cylinder assemblies, the central control module generates a depth temperature curve according to the depth data and the temperature data, and adjusts the filling data in the temperature regulating cylinder assembly according to the depth temperature curve with a preset temperature regulating strategy;

[0010] Step S4, the tree pile construction module installs a plurality of the temperature regulating cylinder assemblies on the inner surface of the construction hole at corresponding depths, and fills the construction hole;

[0011] Step S5, the tree root pile construction module casts the completed construction hole and adjusts the temperature of the construction hole in a preset temperature adjustment manner;

[0012] The filling data includes filling materials and filling amounts of the filling materials, and the preset temperature control strategy is that the central control module divides the depth temperature curve into a number of depth intervals according to the depth, determines the temperature level of each depth interval, and fills the corresponding dose of the heat-generating material or the heat-absorbing material in the temperature control cylinder assembly installed in the corresponding depth interval according to the temperature level;

[0013] The preset temperature control method is that a plurality of the temperature control cylinder assemblies are triggered in sections when casting in the preset casting method. When triggered, the temperature control cylinder assemblies filled with the heat-generating material release heat, and the temperature control cylinder assemblies filled with the heat-absorbing material absorb heat.

[0014] Furthermore, in the step S4, the tree pile construction module installs a plurality of the temperature regulating cylinder assemblies at corresponding depths on the inner side of the inner surface of the construction hole, and each temperature regulating cylinder assembly is placed in the construction hole and concentric with the construction hole and connected in sequence by a plurality of connecting rods;

[0015] Among them, a single temperature regulating cylinder assembly is composed of an upper tube cavity and a lower tube cavity. The upper tube cavity is used to fill water, and the lower tube cavity is used to fill heat exchange material. An isolation plate is provided between the upper tube cavity and the lower tube cavity, and a number of triggers are evenly arranged on the isolation plate. When the trigger is triggered, the upper tube cavity is connected with the lower tube cavity;

[0016] Wherein, a plurality of pistons are evenly distributed along the circumferential direction on the inner surface of the single temperature regulating cylinder assembly, and the pistons are connected to the trigger on the isolation plate.

[0017] Furthermore, a segmented triggering strategy is provided in the temperature regulating cylinder assembly. When the slurry outside a single temperature regulating cylinder assembly of a single construction hole reaches a preset pressure, the piston is compressed in the pressure direction by the slurry pressure, and the trigger is activated, so that the water in the upper tube cavity flows to the lower tube cavity to react with the heat-generating material or the heat-absorbing material in the lower tube cavity;

[0018] Wherein, the preset pressure is the bursting pressure of the piston.

[0019] Further, in the step S3, the central control module is provided with a low temperature threshold T l and a high temperature threshold Th, wherein 0<T l<Th;

[0020] When the temperature of the construction hole is lower than the low temperature threshold, the central control module determines that the slurry hardening exceeds the preset time standard;

[0021] When the temperature of the construction hole is between the low temperature threshold and the high temperature threshold, the central control module determines that the slurry can be hardened within a preset time standard and reach a preset strength standard;

[0022] When the temperature of the construction hole is greater than the high temperature threshold, the central control module determines that the slurry is lower than the preset strength standard when hardened;

[0023] Among them, the preset time standard is related to the construction period, and is inversely proportional to the average value of the low temperature threshold and the high temperature threshold, and the preset strength standard is related to the design bearing capacity.

[0024] Furthermore, in step S3, the central control module establishes a positional relationship between the plurality of depth intervals and the plurality of temperature regulating tube assemblies, and for a single depth interval, the central control module determines to arrange a single temperature regulating tube assembly at its center position;

[0025] If the temperature level in the depth interval is the first temperature level, the central control module determines to fill the heat-generating material in the lower tube cavity of the single temperature regulating cylinder assembly;

[0026] If the temperature level in the depth interval is the third temperature level, the central control module determines to fill the heat absorbing material in the lower tube cavity of the single temperature regulating cylinder assembly;

[0027] If the temperature level of the depth interval is the second temperature level, the central control module determines not to arrange the temperature regulating cylinder assembly in the depth interval, and sets a plurality of connecting rods for connecting the temperature regulating cylinder assemblies of adjacent depth intervals in the depth interval.

[0028] Further, in the step S3, the data acquisition module acquires the average temperature of a single depth interval of the single construction hole, and the central control module compares the average temperature T of any depth interval in the single construction hole with the low temperature threshold Tl and the high temperature threshold Th to determine the temperature level of the depth interval, and determines the filling data of the temperature regulating cylinder assembly according to the temperature level;

[0029] The first temperature level satisfies the condition T<Tl, the second temperature level satisfies the condition Tl≤T≤Th, and the third temperature level satisfies the condition T>Th.

[0030] Further, in the step S3, if the temperature level of any one of the depth intervals in any one of the construction holes is the second temperature level, the central control module determines not to arrange a temperature regulating cylinder assembly in the construction hole;

[0031] If the temperature level of any depth interval in any of the construction holes is discontinuous with the temperature level of the adjacent depth interval, the depth data and temperature data acquired by the data acquisition module are determined to be erroneous data, and the data acquisition module reacquires the depth data and temperature data;

[0032] The discontinuous temperature level means that the temperature levels of adjacent depth intervals are respectively the first temperature level and the third temperature level.

[0033] Further, in the step S3, the central control module is provided with a calculation method for the filling amount of the heat-generating material and the filling amount of the heat-absorbing material, wherein the filling amount of the heat-generating material is related to the low temperature threshold, and the filling amount of the heat-absorbing material is related to the high temperature threshold;

[0034] The heating material filling amount L1 is determined by formula (1):

[0035]

[0036] Wherein, La is the standard filling amount of heating material;

[0037] The amount of heat absorbing material L2 is determined by formula (2):

[0038]

[0039] Wherein, Lb is the standard filling amount of the heat absorbing material.

[0040] Furthermore, in the step S5, the data acquisition module acquires the average temperature Ts of each construction hole in real time, and when Ts<T l, the central control module is also provided with a compensatory heating strategy;

[0041] The compensation heating strategy is that the central control module turns on the electrode heating module, the electrode heating module is an electrode connected to the steel cage, each electrode is connected to a power supply, each electrode independently controls the power supply, and the central control module calculates the electrode power-on time t, t is determined by formula (3):

[0042]

[0043] Wherein, t0 is the standard electrode power-on time. When the electrode power-on time is reached, the data acquisition module re-acquires the average temperature of the construction hole that triggers the compensation heating strategy.

[0044] Furthermore, when the lower tube cavity is filled with heat-generating material, the upper tube cavity is filled with water of a volume corresponding to the amount of heat released by the heat-generating material; when the lower tube cavity is filled with heat-absorbing material, the upper tube cavity is filled with water of a volume corresponding to the amount of heat absorbed by the heat-absorbing material.

[0045] Compared with the prior art, the beneficial effect of the present invention lies in that, by prefabricating a plurality of temperature regulating cylinder assemblies and adjusting the temperature of a plurality of depth intervals, the slurry is kept between preset temperature thresholds during the hardening process. The hardening of the slurry between the preset temperature thresholds can improve the quality of the tree root piles while reducing the construction period. The temperature regulating cylinder assembly is provided with intervals and connected by a plurality of connecting rods, so that the shape and structure of the formed tree root piles are more complex, thereby improving the service life and robustness of the tree root piles. The temperature regulating cylinder assembly adopts a segmented triggering strategy, and can also be automatically triggered as the grouting pressure changes in the case of a high construction hole depth, thereby reducing the construction difficulty and effectively improving the construction efficiency. The segmented triggering strategy enables the slurry in each depth interval to start temperature adjustment under the same pressure state, so that the molding quality is more balanced, thereby effectively improving the construction quality of the tree root piles.

[0046] Furthermore, the present invention realizes modular monitoring and control of tree root pile construction by generating a depth temperature curve and dividing the construction hole into several depth intervals, thereby improving the detection speed and construction efficiency, thereby further improving the construction quality of the tree root piles.

[0047] Furthermore, the present invention can more accurately control the temperature of each depth interval by presetting low temperature thresholds and high temperature thresholds, thereby improving the quality and strength of the formed tree root piles and avoiding quality problems and safety hazards.

[0048] Furthermore, the present invention adjusts the filling amount of the heating material in each temperature regulating tube assembly according to the temperature level in each depth interval, thereby further accurately adjusting the temperature and improving the quality of the tree root pile.

[0049] Furthermore, the present invention further controls the temperature of the construction hole by setting a compensating heating strategy through the central control module, thereby further ensuring the construction efficiency and robustness of the tree root piles. BRIEF DESCRIPTION OF THE DRAWINGS

[0050] Figure 1 It is a schematic diagram of the process of the tree root pile construction method based on coastal embankments of the present invention;

[0051] Figure 2 This is a schematic diagram of the position of the temperature regulating cylinder assembly according to an embodiment of the present invention;

[0052] Figure 3 It is a cross-sectional schematic diagram of a temperature regulating cylinder assembly according to an embodiment of the present invention;

[0053] In the figure: 1, grouting pipe; 2, upper pipe cavity; 3, lower pipe cavity; 4, steel cage; 5, connecting rod; 6, piston. DETAILED DESCRIPTION

[0054] In order to make the objects and advantages of the present invention more clearly understood, the present invention is further described below in conjunction with embodiments; it should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0055] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0056] It should be noted that, in the description of the present invention, terms such as "up", "down", "left", "right", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is merely for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present invention.

[0057] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] See also Figure 1 As shown, it is a schematic diagram of the process of the tree root pile construction method based on coastal embankments of the present invention, including:

[0059] Step S1, drilling a construction hole using a tree pile construction module, hanging a steel cage 4 in the construction hole, and connecting an electrode heating module to the steel cage 4;

[0060] In this embodiment, the electrode heating module uses a safe voltage and has corresponding safety measures when it is turned on. It is connected above the steel cage 4.

[0061] Step S2, using a data acquisition module to acquire construction hole depth data and corresponding temperature data;

[0062] In this embodiment, the data acquisition module acquires the construction hole depth data and the corresponding temperature data through an extendable infrared thermometer.

[0063] During the grouting process, the data acquisition module obtains the average construction temperature through a thermal imager and a computer.

[0064] Step S3, the tree root pile construction module prefabricates a number of temperature adjustment cylinder assemblies, the central control module generates a depth temperature curve according to the depth data and the temperature data, and adjusts the filling data in the temperature adjustment cylinder assembly according to the depth temperature curve with a preset temperature adjustment strategy;

[0065] Step S4, the tree root pile construction module installs a plurality of temperature regulating cylinder assemblies on the inner surface of the construction hole at corresponding depths, and fills the construction hole;

[0066] Step S5, the tree root pile construction module pours the completed construction hole and adjusts the temperature of the construction hole in a preset temperature adjustment manner;

[0067] The filling data includes filling materials and filling amount of the filling materials;

[0068] The preset temperature control strategy is that the central control module divides the depth temperature curve into several depth intervals according to the depth, determines the temperature level of each depth interval, and fills the corresponding dose of heat-generating material or heat-absorbing material in the temperature control cylinder assembly installed in the corresponding depth interval according to the temperature level;

[0069] In this embodiment, the heat-generating material and the heat-absorbing material are selected from materials that have little impact on the project, and the substances generated after the reaction are relatively stable and do not react with the temperature regulating tube component.

[0070] In this embodiment, the heat generating and heat absorbing materials are preferably mixed in the following ratios:

[0071] Heating material ratio:

[0072] 1. 80% magnesium chloride hexahydrate, 5% aluminum powder, and 15% deionized water in the upper lumen 2;

[0073] 2. 75% magnesium chloride hexahydrate, 5% iron powder, and 10% deionized water in the upper lumen 2.

[0074] Ratio of heat absorbing materials:

[0075] 1. 85% sodium bicarbonate, 10% sodium chloride, and 5% deionized water in the upper lumen 2;

[0076] 2. 60% sodium bicarbonate, 24% calcium chloride, and 10% deionized water in the upper lumen 2.

[0077] The preset temperature control method is that a plurality of temperature control cylinder assemblies are triggered in sections when pouring in a preset pouring method. When triggered, the temperature control cylinder assemblies filled with heat-generating materials release heat, and the temperature control cylinder assemblies filled with heat-absorbing materials absorb heat.

[0078] The construction hole is filled by placing stones of uniform size into the construction hole;

[0079] The pouring process is specifically as follows: after the stones are placed, the grouting pipe 1 is used to perform a grouting operation on the construction hole at a first grouting pressure, and after the first grouting operation is completed, a steel casing is inserted into the steel cage, and the steel casing is poured at a second grouting pressure;

[0080] When pouring with the second grouting pressure, the secondary grouting pressure is larger than that of the first grouting. The secondary grouting can fill the gaps in the construction hole and improve the molding quality. During grouting, the grouting pipe moves upward gradually. Therefore, the temperature regulating cylinder assembly is also triggered in stages during the second grouting due to the increase in grouting pressure at each stage.

[0081] Embodiment 1:

[0082] The primary grouting pressure is 0.5MPa, which can make the slurry gradually rise from the bottom of the hole. When the slurry overflows the hole mouth, the secondary grouting pressure is 3MPa.

[0083] Embodiment 2:

[0084] The primary grouting pressure is 0.8MPa, which can make the slurry gradually rise from the bottom of the hole. When the slurry overflows the hole mouth, the secondary grouting pressure is 2.4MPa.

[0085] Embodiment 3:

[0086] The primary grouting pressure is 0.5MPa, which can make the slurry gradually rise from the bottom of the hole. When the slurry overflows the hole mouth, the secondary grouting pressure is 1.8MPa.

[0087] See also Figure 2 , Figure 3 As shown, they are respectively a schematic diagram of the position of the temperature control cylinder assembly of the embodiment of the present invention and a schematic diagram of the cross-section of the temperature control cylinder assembly of the embodiment of the present invention. In step S4, the tree root pile construction module installs a plurality of temperature control cylinder assemblies on the inner side of the inner surface of the construction hole at a corresponding depth. Each temperature control cylinder assembly is placed concentrically with the construction hole in the construction hole and connected in sequence by a plurality of connecting rods 5;

[0088] Among them, a single temperature regulating cylinder assembly is composed of an upper tube cavity 2 and a lower tube cavity 3. The upper tube cavity 2 is used to fill water, and the lower tube cavity 3 is used to fill heat exchange material. An isolation plate is provided between the upper tube cavity 2 and the lower tube cavity 3. A plurality of triggers are evenly arranged on the isolation plate. When the trigger is triggered, the upper tube cavity 2 is connected with the lower tube cavity 3.

[0089] A plurality of pistons 6 are evenly distributed along the circumferential direction on the inner surface of a single temperature regulating cylinder assembly, and the pistons 6 are connected to the trigger on the isolation plate.

[0090] In this embodiment, the temperature regulating tube component is preferably made of carbon fiber, which can effectively transfer heat while maintaining good strength and corrosion resistance.

[0091] Specifically, a segmented triggering strategy is provided in the temperature regulating cylinder assembly. When the slurry outside a single temperature regulating cylinder assembly in a single construction hole reaches a preset pressure, the piston is compressed inwardly by the slurry pressure and activates the trigger, so that the water in the upper tube cavity 2 flows to the lower tube cavity 3 to react with the heat-generating material or the heat-absorbing material in the lower tube cavity 3;

[0092] The preset pressure is the bursting pressure of the piston, and the bursting pressure of the piston can be adjusted according to the second grouting pressure.

[0093] By prefabricating a number of temperature-adjusting cylinder assemblies and adjusting the temperature of a number of depth intervals, the slurry is kept between preset temperature thresholds during the hardening process. The hardening of the slurry between the preset temperature thresholds can improve the quality of the tree root pile while reducing the construction period. The temperature-adjusting cylinder assemblies are provided with intervals and are connected by a number of connecting rods 5, so that the shape and structure of the formed tree root pile are more complex, thereby improving the service life and robustness of the tree root pile. The temperature-adjusting cylinder assembly adopts a segmented triggering strategy, which can be automatically triggered as the grouting pressure changes in the case of a high construction hole depth, reducing the construction difficulty and effectively improving the construction efficiency. The segmented triggering strategy enables the slurry in each depth interval to start temperature adjustment under the same pressure state, so that the molding quality is more balanced.

[0094] Specifically, in step S3, the central control module is set with a low temperature threshold T l and a high temperature threshold Th, wherein 0<T l<Th,

[0095] When the construction hole temperature is lower than the low temperature threshold, the slurry hardening exceeds the preset time standard;

[0096] When the temperature of the construction hole is between the low temperature threshold and the high temperature threshold, the slurry can harden within the preset time standard and reach the preset strength standard;

[0097] When the temperature of the construction hole is greater than the high temperature threshold, the slurry hardens and is lower than the preset strength standard;

[0098] Among them, the preset time standard is related to the construction period, and the preset strength standard is related to the design bearing capacity.

[0099] In this embodiment, the preset time standard and the preset strength standard are determined according to the construction period and the design bearing capacity, and the low temperature threshold and the high temperature threshold are determined according to different concrete mix ratios and their pH values:

[0100] 1. C35 concrete; pH, 11.0; low temperature threshold, 8°C, high temperature threshold, 20°C;

[0101] 2. C45 concrete; pH, 8.2; low temperature threshold, 0°C, high temperature threshold, 15°C;

[0102] 3. C35 concrete; pH, 8.0; low temperature threshold, 10℃, high temperature threshold, 35℃.

[0103] For the preset time standard, the longer the construction period, the longer the slurry takes to harden, so the preset time standard should be adjusted to a longer time accordingly to ensure that the slurry can reach the preset strength standard within the predetermined time. In addition, it is necessary to make adjustments based on the specific construction conditions and the properties of the slurry to ensure that the slurry can reach the preset strength standard within an appropriate time.

[0104] For the preset strength standard, the design bearing capacity is an important factor. According to the design bearing capacity requirements of the root pile, the preset strength standard can be determined.

[0105] For example, if the design bearing capacity requirement is higher, the preset strength standard should be increased accordingly to ensure that the strength of the root pile can meet the design requirements. In addition, factors such as the properties of the slurry and construction conditions need to be considered to determine the final preset strength standard.

[0106] Therefore, by selecting the preset time standard and the preset strength standard according to the construction period and the design bearing capacity, the quality and reliability of the tree root pile construction can be ensured.

[0107] By presetting low temperature thresholds and high temperature thresholds, the temperature of each depth interval can be controlled more accurately, thereby improving the quality and strength of the formed tree root piles and avoiding quality problems and safety hazards.

[0108] Specifically, in step S3, in step S3, the data acquisition module obtains the average temperature of a single depth interval in a single construction hole, and the central control module compares the average temperature T of any depth interval in the single construction hole with the low temperature threshold T l and the high temperature threshold Th to determine the temperature level of the depth interval, and determines the filling data of the temperature regulating cylinder assembly according to the temperature level;

[0109] The first temperature level is T<Tl, the second temperature level is Tl≤T≤Th, and the third temperature level is T>Th.

[0110] Specifically, in step S3, the central control module establishes a positional relationship between a plurality of depth intervals and a plurality of temperature regulating cylinder assemblies. For a single depth interval, the central control module determines to arrange a single temperature regulating cylinder assembly at its center position.

[0111] If the temperature level in the depth interval is the first temperature level, the central control module determines to fill the lower tube cavity of the single temperature regulating cylinder assembly with a heating material;

[0112] If the temperature level in the depth interval is the third temperature level, the central control module determines to fill the lower tube cavity of the single temperature regulating cylinder assembly with heat absorbing material;

[0113] If the temperature level of the depth interval is the second temperature level, the central control module determines not to arrange the temperature regulating cylinder assembly in the depth interval, and arranges a plurality of connecting rods 5 for connecting the temperature regulating cylinder assemblies in adjacent depth intervals in the depth interval.

[0114] The present invention realizes modular monitoring and control of tree root pile construction by generating a depth temperature curve and dividing the construction hole into a plurality of depth intervals, thereby improving the detection speed and construction efficiency.

[0115] Specifically, if the temperature level of any depth interval in any construction hole is the second temperature level, the central control module determines not to arrange the temperature regulating cylinder assembly in the construction hole;

[0116] If the temperature level of any depth interval in any construction hole is discontinuous with that of its adjacent depth interval, the depth data and temperature data acquired by the data acquisition module are determined to be erroneous data, and the data acquisition module reacquires the depth data and temperature data;

[0117] The discontinuous temperature level means that the temperature levels of adjacent depth intervals are respectively the first temperature level and the third temperature level.

[0118] Taking the construction process of a tree root pile as an example, the data acquisition module obtained the following data in one measurement;

[0119] Depth range A: depth, 0-1.0m; temperature: 20℃;

[0120] Depth range B: depth, 1.0-2.0m; temperature: -10℃;

[0121] Depth interval C: depth, 2.0-3.0 m; temperature: 30 °C;

[0122] Depth range D: depth, 3.0-4.0m; temperature: -5℃;

[0123] Depth range E: depth, 4.0-5.0m; temperature: 20℃;

[0124] Among them, the depth interval of the first temperature level and the depth interval of the second temperature level in any construction hole are staggered. The temperature is sometimes high and sometimes low with the change of depth, which is inconsistent with common sense in construction. This shows that the data module for data acquisition is wrong. Of course, special circumstances are not ruled out. If the re-acquired depth temperature data is roughly the same as the previous time, the construction hole will be further analyzed and construction will be carried out according to the situation.

[0125] Specifically, in step S3, the central control module is provided with a calculation method for the filling amount of the heat-generating material and the filling amount of the heat-absorbing material, wherein the filling amount of the heat-generating material is related to the low temperature threshold, and the filling amount of the heat-absorbing material is related to the high temperature threshold;

[0126] The heating material filling amount L1 is determined by formula (1):

[0127]

[0128] Wherein, La is the standard filling amount of heating material;

[0129] The amount of heat absorbing material L2 is determined by formula (2):

[0130]

[0131] Where Lb is the standard filling amount of the heat absorbing material.

[0132] By adjusting the amount of heating material filled in each temperature control tube assembly according to the temperature level in each depth interval, the temperature can be further accurately adjusted to improve the quality of the tree root piles.

[0133] Specifically, in step S5, the data acquisition module acquires the average temperature Ts of each construction hole in real time. When Ts<Tl, the central control module is also provided with a compensatory heating strategy;

[0134] Among them, the compensation heating strategy is that the central control module turns on the electrode heating module. The electrode heating module is an electrode connected to the steel cage. Any electrode is connected to the power supply. Any electrode independently controls the power supply. The central control module calculates the electrode power-on time t, which is determined by formula (3):

[0135]

[0136] Wherein t0 is the standard electrode power-on time. When the electrode power-on time is reached, the data acquisition module re-acquires the average temperature of the construction hole that triggers the compensation heating strategy.

[0137] The central control module controls the electrode to be energized according to the electrode power-on time t. After the power-on is completed, the data acquisition module re-acquires the average temperature Ts1 of the construction hole. If Ts1≥T l, the electrode is turned off and the compensation heating strategy ends. If Ts1<T l, the central control module recalculates the power-on time and controls the electrode to be energized for the second time until the average temperature of the construction hole reaches the second temperature level.

[0138] By setting the compensatory heating strategy through the central control module, the temperature of the construction hole is further controlled, which further ensures the construction efficiency and robustness of the tree root piles.

[0139] Specifically, when the lower tube cavity 3 is filled with heat-generating material, the upper tube cavity 2 is filled with water of a volume corresponding to the heat released by the heat-generating material; when the lower tube cavity 3 is filled with heat-absorbing material, the upper tube cavity 2 is filled with water of a volume corresponding to the heat absorbed by the heat-absorbing material.

[0140] So far, the technical solutions of the present invention have been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

[0141] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A tree root pile construction method based on coastal embankments, It is characterized in that include: Step S1, drilling a construction hole using a tree pile construction module, hanging a steel cage in the construction hole, and connecting an electrode heating module to the steel cage; Step S2, using a data acquisition module to acquire construction hole depth data and corresponding temperature data; Step S3, the tree pile construction module prefabricates a plurality of temperature regulating cylinder assemblies, the central control module generates a depth temperature curve according to the depth data and the temperature data, and adjusts the filling data in the temperature regulating cylinder assembly according to the depth temperature curve with a preset temperature regulating strategy; Step S4, the tree pile construction module installs a plurality of the temperature regulating cylinder assemblies on the inner surface of the construction hole at corresponding depths, and fills the construction hole; Step S5, the tree root pile construction module casts the completed construction hole and adjusts the temperature of the construction hole in a preset temperature adjustment manner; The filling data includes filling materials and filling amounts of the filling materials, and the preset temperature control strategy is that the central control module divides the depth temperature curve into a number of depth intervals according to the depth, determines the temperature level of each depth interval, and fills the corresponding dose of the heat-generating material or the heat-absorbing material in the temperature control cylinder assembly installed in the corresponding depth interval according to the temperature level; The preset temperature control method is that the plurality of temperature control cylinder assemblies are triggered in sections when casting in a preset casting method. When triggered, the temperature control cylinder assemblies filled with the heat-generating material release heat, and the temperature control cylinder assemblies filled with the heat-absorbing material absorb heat.

2. The tree root pile construction method based on coastal embankment according to claim 1, It is characterized in that In step S4, the tree pile construction module installs a plurality of the temperature regulating cylinder assemblies on the inner side of the inner surface of the construction hole at corresponding depths, and each temperature regulating cylinder assembly is placed in the construction hole and concentric with the construction hole and connected in sequence by a plurality of connecting rods; Among them, a single temperature regulating cylinder assembly is composed of an upper tube cavity and a lower tube cavity. The upper tube cavity is used to fill water, and the lower tube cavity is used to fill heat exchange material. An isolation plate is provided between the upper tube cavity and the lower tube cavity, and a number of triggers are evenly arranged on the isolation plate. When the trigger is triggered, the upper tube cavity is connected with the lower tube cavity; Wherein, a plurality of pistons are evenly distributed along the circumferential direction on the inner surface of the single temperature regulating cylinder assembly, and the pistons are connected to the trigger on the isolation plate.

3. The tree root pile construction method based on coastal embankment according to claim 2, It is characterized in that The temperature regulating cylinder assembly is provided with a segmented triggering strategy. When the slurry outside a single temperature regulating cylinder assembly of a single construction hole reaches a preset pressure, the piston is compressed in the pressure direction by the slurry pressure, and the trigger is activated, so that the water in the upper tube cavity flows to the lower tube cavity to react with the heat-generating material or the heat-absorbing material in the lower tube cavity; Wherein, the preset pressure is the bursting pressure of the piston.

4. The tree root pile construction method based on coastal embankment according to claim 3, It is characterized in that In the step S3, the central control module is provided with a low temperature threshold Tl and a high temperature threshold Th, wherein 0<Tl<Th; When the temperature of the construction hole is lower than the low temperature threshold, the central control module determines that the slurry hardening exceeds the preset time standard; When the temperature of the construction hole is between the low temperature threshold and the high temperature threshold, the central control module determines that the slurry can be hardened within a preset time standard and reach a preset strength standard; When the temperature of the construction hole is greater than the high temperature threshold, the central control module determines that the slurry is lower than the preset strength standard when hardened; Among them, the preset time standard is related to the construction period, and is inversely proportional to the average value of the low temperature threshold and the high temperature threshold, and the preset strength standard is related to the design bearing capacity.

5. The tree root pile construction method based on coastal embankment according to claim 4, It is characterized in that In step S3, the central control module establishes a positional relationship between the plurality of depth intervals and the plurality of temperature regulating cylinder assemblies. For a single depth interval, the central control module determines to arrange a single temperature regulating cylinder assembly at its center position; If the temperature level in the depth interval is the first temperature level, the central control module determines to fill the heat-generating material in the lower tube cavity of the single temperature regulating cylinder assembly; If the temperature level in the depth interval is the third temperature level, the central control module determines to fill the heat absorbing material in the lower tube cavity of the single temperature regulating cylinder assembly; If the temperature level of the depth interval is the second temperature level, the central control module determines not to arrange the temperature regulating cylinder assembly in the depth interval, and sets a plurality of connecting rods for connecting the temperature regulating cylinder assemblies of adjacent depth intervals in the depth interval.

6. The tree root pile construction method based on coastal embankment according to claim 5, It is characterized in that In step S3, the data acquisition module acquires the average temperature of a single depth interval of a single construction hole, and the central control module compares the average temperature T of any depth interval in the single construction hole with the low temperature threshold T1 and the high temperature threshold Th to determine the temperature level of the depth interval, and determines the filling data of the temperature regulating cylinder assembly according to the temperature level; The first temperature level satisfies a condition T<Tl, the second temperature level satisfies a condition Tl≤T≤Th, and the third temperature level satisfies a condition T>Th.

7. The tree root pile construction method based on coastal embankment according to claim 6, It is characterized in that In the step S3, if the temperature level of any one of the depth intervals in any one of the construction holes is the second temperature level, the central control module determines not to arrange a temperature regulating cylinder assembly in the construction hole; If the temperature level of any depth interval in any of the construction holes is discontinuous with the temperature level of the adjacent depth interval, the depth data and temperature data acquired by the data acquisition module are determined to be erroneous data, and the data acquisition module reacquires the depth data and temperature data; The discontinuous temperature level means that the temperature levels of adjacent depth intervals are respectively the first temperature level and the third temperature level.

8. The tree root pile construction method based on coastal embankment according to claim 7, It is characterized in that In step S3, the central control module is provided with a calculation method for the filling amount of the heat-generating material and the filling amount of the heat-absorbing material, wherein the filling amount of the heat-generating material is related to the low temperature threshold, and the filling amount of the heat-absorbing material is related to the high temperature threshold; The heating material filling amount L1 is determined by formula (1): L1= （1） Wherein, La is the standard filling amount of heating material; The amount of heat absorbing material L2 is determined by formula (2): L2= （2） Wherein, Lb is the standard filling amount of the heat absorbing material.

9. The tree root pile construction method based on coastal embankment according to claim 8, It is characterized in that In step S5, the data acquisition module acquires the average temperature Ts of each construction hole in real time. When Ts<Tl, the central control module is also provided with a compensating heating strategy; The compensation heating strategy is that the central control module turns on the electrode heating module, and the electrode heating module is an electrode connected to the steel cage. Each electrode is connected to a power supply and independently controls the power supply. The central control module calculates the electrode power-on time t, which is determined by formula (3): t= （3） Wherein, t0 is the standard electrode power-on time. When the electrode power-on time is reached, the data acquisition module re-acquires the average temperature of the construction hole that triggers the compensation heating strategy.

10. The tree root pile construction method based on coastal embankment according to claim 8, It is characterized in that When the lower tube cavity is filled with heat-generating material, the upper tube cavity is filled with water of a volume corresponding to the heat released by the heat-generating material; when the lower tube cavity is filled with heat-absorbing material, the upper tube cavity is filled with water of a volume corresponding to the heat absorbed by the heat-absorbing material.

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