Frost heaving and thaw collapse control system for connecting channel in soft soil area

Abstract

The invention provides a control system for frost heaving and thaw collapse of a connecting channel in a soft soil area. A slurry discharge pipe fitting; a heating tape; the first digital pressure measuring valve is fixedly mounted on the grouting pipe fitting; the second digital pressure measuring valve is fixedly mounted on the slurry discharging pipe fitting; a grouting machine; a pulp pumping machine; and a controller. The heating belt serves as a heat source, it is guaranteed that slurry cannot be frozen at the initial stage of low-flow grouting, sufficient expansion of the bag is facilitated, hot slurry is continuously injected and discharged, the bag is always kept to have the heating function, a soil layer is heated, and after heating is conducted for a certain time, the soil layer near the bag is melted completely; and the bag is expanded by injecting hot slurry, so that melt collapse soil around the bag can be extruded, filled and supported, the melt collapse degree can be reduced, and the adverse effect of melt collapse on the stability of a foundation near the channel can be reduced.

Description

Technical Field

[0001] The invention belongs to the first grouting pipe in the field of communication channel construction, and in particular relates to a frost heave and thaw settlement control system for a communication channel in a soft soil area. Background Art

[0002] The freezing method of construction refers to drilling a hole into the water-bearing soil layer, inserting a steel pipe, and introducing circulating liquid nitrogen to freeze the surrounding strata to form a hard frozen soil shell. It not only ensures the stability of the strata, but also acts as a water barrier, allowing deep foundation pit excavation.

[0003] However, freezing construction will interfere with the temperature field of the surrounding soil layers, causing the surrounding soil layers to freeze and thaw, and the freezing reinforcement of the soil cannot work for a long time. When the temperature rises, the melting causes the soil layers to soften and thaw, which has an adverse effect on the stability of the foundation. Summary of the invention

[0004] In view of this, the present invention aims to propose a frost heave and thaw settlement control system for connecting channels in soft soil areas, so as to solve the problem that the freezing construction method will interfere with the temperature field of the surrounding soil layers, causing the surrounding soil layers to produce frost heave and thaw settlement, and the freezing reinforcement of the soil body cannot work for a long time. When the temperature rises, the melting makes the soil layers soften and produce thaw settlement, which has an adverse effect on the stability of the foundation.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A control system for frost heave and thaw settlement of a communication channel in a soft soil area provided by the present invention also includes: a grouting pipe fitting, which is fixedly connected to the first end of the bag after passing through the support body; a grouting pipe fitting, which is fixedly connected to the second end of the bag after passing through the support body; a heating belt, which extends to the interior of the bag after passing through the grouting pipe fitting, and a metal elastic rod is fixedly connected to the surface of the heating belt; a first digital pressure measuring valve, which is fixedly installed on the grouting pipe fitting; a second digital pressure measuring valve, which is fixedly installed on the grouting pipe fitting; a grouting machine, whose grouting port is connected to the grouting pipe fitting through a first pipeline; a grouting machine, whose grouting port is connected to the grouting pipe fitting through a second pipeline; a grouting machine, whose grouting port is connected to the grouting pipe fitting through a second pipeline; and a controller, which is used to control the start and stop of the grouting machine and the grouting machine according to the pressure measuring information of the first digital pressure measuring valve and the second digital pressure measuring valve.

[0007] Specifically, the ends of the first pipeline and the second pipeline are both provided with flange connectors, and the flange connectors at the ends of the first pipeline and the second pipeline are respectively used to connect with the grouting pipe fittings and the grouting pipe fittings.

[0008] It should be understood that when the support body is arranged between the outer surface of the channel body and the soil layer, on the channel body surface of the arc track, the support body is distributed in an arc shape, and a matching arc-shaped bag is supported on the surface;

[0009] Before grouting, the heating belt is first inserted into the grouting pipe. Under the support of the metal elastic rod, the heating belt can be inserted into the interior of the bag, deformed under the restriction of the bag, and moved from the first end to the second end of the bag until the heating belt is inserted to the second end of the bag, so that the heating belt is distributed within the extended trajectory of the bag, which is conducive to uniform heating of the interior of the bag during heating;

[0010] After the heating belt is fully inserted into the bag, the heating belt is powered on to heat the space inside the bag, so as to melt the frozen soil around the bag, soften the nearby soil, and heat the area around the bag for a certain period of time. After heating for a certain period of time, the frozen soil around the bag is melted. Specifically, the heating belt is heated by providing heat, and the temperature is set in the range of 30-50°C. It is heated for 1 to 2 hours to reduce the temperature of the soil around the bag. Then, 50°C slurry is injected, and the heating belt is used as a heat source to ensure that the slurry will not freeze in the early stage of low-flow grouting, so that the bag can fully expand.

[0011] The grouting machine is connected to the second grouting pipe through a pipeline, and the grouting machine is connected to the second row of slurry pipes through the second pipeline, so as to inject hot slurry from the first end of the bag, circulate through the entire bag, flow from the second end of the bag to the first row of slurry pipes, and be partially extracted by the grouting machine through the second row of slurry pipes, so that slurry is gradually stored in the bag, and the hot slurry in the bag will heat the bag, and then heat the surrounding soil layer, and the hot slurry is continuously injected and discharged to always keep the bag with a heating function to heat the soil layer. After a certain period of heating, the soil layer near the bag is completely melted, and the bag is expanded by injecting hot slurry, which is beneficial to squeeze and fill the melted soil around the bag for support, which is beneficial to reduce the degree of melting settlement, and further beneficial to reduce the adverse effect of melting settlement on the stability of the foundation near the channel.

[0012] It should be further explained that the inner diameters of the grouting pipe and the grouting pipe are the same. The first digital pressure measuring valve and the second digital pressure measuring valve are respectively installed on the grouting pipe and the grouting pipe to monitor the pressure change in real time during the process of injecting hot slurry into the bag. After the hot slurry is injected, the surrounding soil will gradually melt. In the initial stage, the controller controls the grouting machine to start and inject hot slurry through the first connecting pipe. After a certain period of time, the slurry temperature drops, and the pressure is measured at the second connecting pipe and the unsolidified slurry is extracted. At the same time, hot slurry is continuously injected from the first connecting pipe to ensure that the pressure in the first connecting pipe and the second connecting pipe remains consistent. Since the melting of the surrounding soil will cause settlement, multiple cycles are required to ensure constant pressure, and the melted soil layer is squeezed and stably supported. This operation is repeated until the bag is fully expanded and expanded to the designed state, so as to achieve further stable support for the soil layer near the channel, which is conducive to reducing the adverse effects of melting settlement on the stability of the foundation near the channel.

[0013] It should be further explained that, when the bag is not placed in the soil layer, hot slurry is injected into the bag, and slurry is simultaneously pumped out by the slurry pumping machine. When the pressure values ​​a of the first digital pressure measuring valve and the second digital pressure measuring valve are constant and remain consistent for a certain period of time, the expansion state of the bag at this time is set to be fully expanded, and the control information corresponding to the control states maintained by the power of the slurry pumping machine and the grouting machine are stored in the storage unit;

[0014] When the bag is placed in the soil layer, the controller controls the power of the grouting machine and the grouting machine according to control information 1. When the pressure value b of the first digital pressure measuring valve and the second digital pressure measuring valve is constant and remains consistent for a certain period of time, the pressure value b is greater than the pressure value a, indicating that the flow of hot slurry in the bag is stable and the pressure of the soil layer is stable. The grouting power of the grouting machine and the grouting machine are controlled to be closed, and then the constant pressure value maintained by the first digital pressure measuring valve and the second digital pressure measuring valve can be used to evaluate the expansion state of the bag. The first digital pressure measuring valve and the second digital pressure measuring valve are maintained at a constant pressure value b, which is conducive to expanding the bag to the maximum expansion degree under this condition.

[0015] It should be noted that the pressure value b is measured when the bag is subjected to soil pressure. Therefore, under the action of soil pressure, it is necessarily greater than the pressure value a.

[0016] It should be further explained that, by placing the power connection of the heating belt in the second grouting pipe, a power supply channel is provided, and gas and hot slurry can be injected into the grouting pipe at the same time.

[0017] Furthermore, it also includes a diversion component, an inner diversion shell, the inner diversion shell is located inside the bladder bag, the two ends of the inner diversion shell are fixedly connected to the inner inner wall of the bladder bag, the top end of the grouting pipe is fixedly connected to the position of the inner diversion shell near the first end, and there is a gap between the inner diversion shell and the inner bottom surface of the bladder bag; multiple diversion pipes, the multiple diversion pipes are respectively fixedly connected on the two side surfaces of the inner diversion shell; wherein the heating belt passes through the first grouting pipe and the second grouting pipe in sequence and then extends to the inside of the inner diversion shell near the second end.

[0018] It should be understood that during the grouting process, the inner diversion shell can divert the hot slurry into the diversion pipe, and the hot slurry is diverted to multiple positions inside the bag through the diversion pipe, which is beneficial to grouting multiple positions inside the bag, thereby achieving uniform grouting and uniform heating, which is beneficial to uniformly heating the soil layer around the bag, so that the soil layer around the bag is melted when the bag expands, which is beneficial to maintaining uniform expansion of the bag surface.

[0019] It should be further explained that the heating of the heating belt will first heat the inside of the inner diverter shell, and the inner diverter shell will conduct heat through the diverter tube, which is beneficial to evenly transfer heat to multiple locations inside the bag, increase the heat conduction area, and evenly heat the inside of the bag.

[0020] Furthermore, it also includes a guide component, which includes: a guide rail, the first pulp discharge pipe includes a redirecting guide section and an extended guide section, the guide rail is fixedly connected to the inner top surface of the inner diversion shell; a guide roller, the guide roller is rotatably connected to the end of the metal elastic rod, and the surface has an annular matching groove, and the annular matching groove is adapted to the guide rail.

[0021] It should be understood that under the guidance of the guide rail, when the heating belt enters the inner diversion pipe, the annular mating groove of the guide roller will first cooperate with the redirecting guide section, causing the heating belt to bend and deform, and then move to the extended guide section under the support of the metal elastic rod and the guidance of the guide roller, until the guide roller moves to the vicinity of the second end of the sac, thereby guiding the extension of the heating belt and moving it along the extension direction of the sac.

[0022] Furthermore, a hot air blower is included, and a third pipe is connected to the exhaust port of the hot air blower, and a flange connector is also connected to the end of the third pipe, which is used to connect the third pipe to the grouting pipe through the flange connector when the third pipe needs to be connected. It should be understood that, as shown in the figure, the hot air blower can be connected to the first grouting pipe through the flange connector, and the end of the second row of grouting pipes can be blocked by a plug, and air is blown into the bag, and the hot air expands the bag, so that the bag can perform primary squeezing and stabilizing of the surrounding soft soil, leaving a certain space, and then the third pipe of the hot air blower is connected to the grouting pipe.

[0023] Compared with the prior art, the frost heave and thaw settlement control system for the communication channel in soft soil area described in the present invention has the following beneficial effects:

[0024] (1) The frost heave and thaw settlement control system of a soft soil area communication channel described in the present invention realizes that hot slurry is injected from the first end of the bag, flows through the entire bag, and then flows from the second end of the bag to the first row of slurry pipes, and is partially extracted by the slurry extractor through the second row of slurry pipes, so that slurry is gradually stored in the bag. The hot slurry in the bag heats the bag, and then heats the surrounding soil layer. The hot slurry is continuously injected and discharged, and the bag always has a heating function to heat the soil layer. After a certain heating period, the soil layer near the bag is completely melted, and the bag is expanded by injecting hot slurry, which is conducive to squeezing and filling the thawed soil around the bag, supporting it, and reducing the degree of thaw settlement, and further reducing the adverse effect of thaw settlement on the stability of the foundation near the channel;

[0025] The heating belt is used as a heat source to ensure that the slurry will not freeze in the early stage of low-flow grouting, which is beneficial to fully expand the bag. By placing the power connection of the heating belt in the second grouting pipe to provide a power supply channel, heated gas can be injected into the grouting pipe. The hot gas expands the bag, allowing the bag to perform primary squeezing and stabilizing of the surrounding soft soil, leaving a certain space, which is beneficial to reduce the resistance encountered during the initial grouting for the later grouting of the bag.

[0026] (2) In the frost heave and thaw settlement control system for a communication channel in a soft soil area described in the present invention, during the grouting process, the inner diversion shell can divert the hot slurry into the diversion pipe, and the hot slurry is diverted to multiple positions inside the bag through the diversion pipe, which is conducive to grouting multiple positions inside the bag, thereby maintaining the heat of multiple positions in the bag, that is, achieving uniform grouting and uniform heating, which is conducive to uniform heating of the soil layer around the bag, so that the soil layer around the bag is melted when the bag expands, which is conducive to maintaining uniform expansion of the bag surface.

[0027] (3) The present invention discloses a control system for frost heave and thaw settlement of a communication channel in a soft soil area. The heating belt is used as a heat source to ensure that the slurry will not freeze in the initial stage of low-flow grouting, which is beneficial to fully expand the bag. The power connection of the heating belt is placed in the second grouting pipe to provide a power supply channel. At the same time, heated gas can be injected into the grouting pipe. The hot gas expands the bag body, so that the bag body can initially squeeze and stabilize the surrounding soft soil, leaving a certain space, which is beneficial to reduce the resistance encountered during the initial grouting for the later grouting of the bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0029] Figure 1 This is a structural cross-sectional view of a support body and a bag of a frost heave and thaw settlement control system for a communication channel in a soft soil area according to an embodiment of the present invention;

[0030] Figure 2 It is a first overall structural schematic diagram of a control system for frost heave and thaw settlement of a communication channel in a soft soil area according to an embodiment of the present invention;

[0031] Figure 3 A second overall structural schematic diagram of a control system for frost heave and thaw settlement of a communication channel in a soft soil area according to an embodiment of the present invention;

[0032] Figure 4 for Figure 3 Enlarged view of part A in the middle;

[0033] Figure 5 for Figure 3 Enlarged view of part B;

[0034] Figure 6 It is a first structural cross-sectional view of a front view of a support body and a bladder bag of a frost heave and thaw settlement control system for a communication channel in a soft soil area according to an embodiment of the present invention;

[0035] Figure 7 It is a second structural cross-sectional view of a front view of a support body and a bladder bag of a frost heave and thaw settlement control system for a communication channel in a soft soil area according to an embodiment of the present invention;

[0036] Figure 8 It is a structural cross-sectional view of a front view of an inner diversion shell of a frost heave and thaw settlement control system for a communication channel in a soft soil area according to an embodiment of the present invention;

[0037] Fig. 9 It is a structural schematic diagram of a guide track and a heating belt of a frost heave and thaw settlement control system for a communication channel in a soft soil area according to an embodiment of the present invention;

[0038] Fig.10 for Fig. 9 Enlarged view of part C in the middle;

[0039] Fig.11 for Fig. 9 Enlarged view of part D in the middle;

[0040] Fig.12 This is a structural cross-sectional view of a second grouting pipe of a frost heave and thaw settlement control system for a communication channel in a soft soil area according to an embodiment of the present invention;

[0041] Fig.13 This is a structural schematic diagram of a connecting ring and a metal elastic rod of a frost heave and thaw settlement control system for a communication channel in a soft soil area according to an embodiment of the present invention;

[0042] Fig.14 This is a control module diagram of a frost heave and thaw settlement control system for a communication channel in a soft soil area according to an embodiment of the present invention.

[0043] Description of reference numerals:

[0044] 1-support body; 2-bladder bag; 3-first grouting pipe; 4-second grouting pipe; 401-first connecting cavity; 402-first connecting pipe; 5-first row of slurry pipes; 6-second row of slurry pipes; 601-second connecting cavity; 602-second connecting pipe; 7-heating belt; 8-metal elastic rod; 9-electrode; 10-controller; 11-conductive ring; 12-channel body 12; 13-inner diverter shell; 14-diverter pipe; 15-opening; 16-drainage hole; 17-guide rail; 1701-redirection guide section; 1702-extended guide section; 18-guide roller; 19-annular matching groove; 20-first digital pressure measuring valve; 21-second digital pressure measuring valve; 22-support frame; 23-connecting ring; 24-grouting machine; 25-slurry extraction machine; 26-hot air blower; 27-first end; 28-second end. DETAILED DESCRIPTION

[0045] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and the like are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", and the like may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0047] In the description of the present invention, it should be noted that, 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 ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0048] The following will refer to the attached Figures 1 to 14 The present invention is described in detail with reference to embodiments.

[0049] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 and Fig.14 As shown, a frost heave and thaw settlement control system for a communication channel in a soft soil area includes a support body 1 and a bag 2, and also includes: a grouting pipe, which passes through the support body 1 and is fixedly connected to the first end 27 of the bag 2; a grouting pipe, which passes through the support body 1 and is fixedly connected to the second end 28 of the bag 2; a heating belt 7, which passes through the grouting pipe and extends to the interior of the bag 2, and a metal elastic rod 8 is fixedly connected to the surface of the heating belt 7; a first digital pressure measuring valve 20, a first digital pressure measuring valve 21, a first digital pressure measuring valve 22, a first digital pressure measuring valve 23, a first digital pressure measuring valve 24, a first digital pressure measuring valve 25, a first digital pressure measuring valve 26, a first digital pressure measuring valve 27, a first digital pressure measuring valve 28, a first digital pressure measuring valve 29, a first digital pressure measuring valve 20, a first digital pressure measuring valve 29 ... The pressure measuring valve 20 is fixedly installed on the grouting pipe fitting; the second digital pressure measuring valve 21, the second digital pressure measuring valve 21 is fixedly installed on the grouting pipe fitting; the grouting machine 24, the grouting port of the grouting machine 24 is connected with the grouting pipe fitting through the first pipeline; the grouting machine 25, the grouting inlet of the grouting machine 25 is connected with the grouting pipe fitting through the second pipeline; the controller 10, the controller 10 is used to control the start and stop of the grouting machine 24 and the grouting machine 25 according to the pressure measuring information of the first digital pressure measuring valve 20 and the second digital pressure measuring valve 21.

[0050] Specifically, the ends of the first pipeline and the second pipeline are both provided with flange connectors, and the flange connectors at the ends of the first pipeline and the second pipeline are respectively used to connect with the grouting pipe fittings and the grouting pipe fittings.

[0051] It should be understood that when the support body 1 is arranged between the outer surface of the channel body 12 and the soil layer, on the surface of the channel body 12 in an arc-shaped trajectory, the support body 1 is distributed in an arc shape, and a matching arc-shaped bag 2 is supported on the surface;

[0052] Before grouting, the heating belt 7 is first inserted into the grouting pipe. Under the support of the metal elastic rod 8, the heating belt 7 can be inserted into the inside of the bag 2, and deformed under the restriction of the bag 2, and moved from the first end 27 to the second end 28 of the bag 2 until the heating belt 7 is inserted to the second end 28 of the bag 2, so that the heating belt 7 is distributed in the extended track of the bag 2, which is conducive to uniform heating of the inside of the bag 2 during heating;

[0053] After the heating belt 7 is fully inserted into the bag 2, the heating belt 7 is powered on to heat the space inside the bag 2, so as to melt the frozen soil layer around the bag 2, soften the nearby soil layer, and heat the area around the bag 2 for a certain period of time. After heating for a certain period of time, the frozen soil near the bag 2 is melted. Specifically, the heating belt 7 heats by providing heat, and the temperature is set within the range of 30-50°C. The temperature is first heated for 1 to 2 hours to reduce the temperature of the soil around the bag 2. Then, a 50°C slurry is injected, and the heating belt 7 is used as a heat source to ensure that the slurry will not freeze in the early stage of low-flow grouting, so that the bag 2 can fully expand.

[0054] like Figure 6 As shown, the grouting machine 24 is connected to the second grouting pipe 4 through a pipeline, and the grouting machine 25 is connected to the second row of grouting pipes 6 through a second pipeline, so as to inject hot slurry from the first end 27 of the bag 2, circulate through the entire bag 2, flow from the second end 28 of the bag 2 to the first row of slurry pipes 5, and be partially extracted by the grouting machine 25 through the second row of slurry pipes 6, so that slurry is gradually stored in the bag 2, and the hot slurry in the bag 2 will heat the bag 2, and then heat the surrounding soil layer, and the hot slurry is continuously injected and discharged, so that the bag 2 always has a heating function to heat the soil layer. After heating for a certain period of time, the soil layer near the bag 2 is completely melted, and the bag 2 is expanded by injecting hot slurry, which is beneficial to squeeze and fill the melted soil around the bag 2 for support, which is beneficial to reduce the degree of melting settlement, and further beneficial to reduce the adverse effect of melting settlement on the stability of the foundation near the channel.

[0055] It should be further explained that the inner diameter of the grouting pipe and the grouting pipe are the same. The first digital pressure measuring valve 20 and the second digital pressure measuring valve 21 are respectively installed on the grouting pipe and the grouting pipe to monitor the pressure change in the process of injecting hot slurry into the bag 2 in real time. After the hot slurry is injected, the surrounding soil will gradually melt. In the initial stage, the controller 10 controls the grouting machine 24 to start and inject hot slurry through the first connecting pipe 402. After a certain period of time, the slurry temperature drops, and the pressure is measured at the second connecting pipe 602 and the unsolidified slurry is extracted. At the same time, hot slurry is continuously injected from the first connecting pipe 402 to ensure that the pressure in the first connecting pipe 402 and the second connecting pipe 602 remains consistent. Since the melting of the surrounding soil will cause settlement, multiple cycles are required to ensure constant pressure, and the melted soil layer is squeezed and stably supported. This operation is repeated until the bag 2 is fully expanded and unfolded to the designed state, so as to achieve further stable support for the soil layer near the channel, which is conducive to reducing the adverse effects of melting settlement on the stability of the foundation near the channel.

[0056] It should be further explained that, when the bag 2 is not placed in the soil layer, hot slurry is injected into the bag 2, and slurry is simultaneously extracted by the slurry extraction machine 25. When the pressure values ​​a of the first digital pressure measuring valve 20 and the second digital pressure measuring valve 21 are constant and remain consistent for a certain period of time, the expansion state of the bag 2 at this time is set to be fully expanded, and the control information corresponding to the control states of the power of the slurry extraction machine 25 and the grouting machine 24 are respectively maintained by the storage unit.

[0057] When the bag 2 is placed in the soil layer, the controller 10 controls the power of the grouting machine 25 and the grouting machine 24 according to the control information 1. When the pressure value b of the first digital pressure measuring valve 20 and the second digital pressure measuring valve 21 is constant and remains consistent for a certain period of time, the pressure value b is greater than the pressure value a, indicating that the flow of the hot slurry in the bag 2 is stable and the pressure of the soil layer is stable. The grouting power of the grouting machine 24 and the grouting machine 25 are controlled to be closed, and then the constant pressure value maintained by the first digital pressure measuring valve 20 and the second digital pressure measuring valve 21 can be used to evaluate the expansion state of the bag 2. The first digital pressure measuring valve 20 and the second digital pressure measuring valve 21 are maintained at a constant pressure value b, which is conducive to expanding the bag 2 to the maximum expansion degree under this condition.

[0058] It should be noted that the pressure value b is measured when the bag 2 is subjected to soil pressure. Therefore, under the action of soil pressure, it is necessarily greater than the pressure value a.

[0059] It should be further explained that, by placing the power connection of the heating belt 7 inside the second grouting pipe 4, a power supply channel is provided, and at the same time, gas and hot slurry can be injected into the grouting pipe.

[0060] like Figure 6 , Figure 7and Figure 8 As shown, it also includes a diversion component, an inner diversion shell 13, the inner diversion shell 13 is located inside the bag 2, the two ends of the inner diversion shell 13 are fixedly connected to the inner inner wall of the bag 2, the top end of the grouting pipe is fixedly connected to the position of the inner diversion shell 13 near the first end 27, and there is a gap between the inner diversion shell 13 and the inner bottom surface of the bag 2; a plurality of diversion pipes 14, and the plurality of diversion pipes 14 are respectively fixedly connected on the two side surfaces of the inner diversion shell 13; wherein the heating belt 7 passes through the first grouting pipe 3 and the second grouting pipe 4 in sequence and then extends to the inside of the inner diversion shell 13 near the second end 28.

[0061] It should be understood that during the grouting process, the inner diversion shell 13 can divert the hot slurry into the diversion pipe 14, and the hot slurry is diverted to multiple positions inside the bag 2 through the diversion pipe 14, which is beneficial to grouting multiple positions inside the bag 2, thereby achieving uniform grouting and uniform heating, which is beneficial to uniformly heating the soil layer around the bag 2, so that the soil layer around the bag 2 is melted when the bag 2 expands, which is beneficial to maintaining the uniform expansion of the surface of the bag 2.

[0062] It should be further explained that the heating of the heating belt 7 will first heat the inside of the inner diverter shell 13, and the inner diverter shell 13 will conduct heat through the diverter tube 14, which is beneficial to evenly transfer heat to multiple positions inside the bag 2, increase the heat conduction area, and evenly heat the inside of the bag 2.

[0063] like Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 and Fig.13 As shown, it also includes a guide component, which includes: a guide track 17, the guide track 17 includes a redirecting guide section 1701 and an extended guide section 1702, and the guide track 17 is fixedly connected to the inner top surface of the inner diversion shell 13; a guide roller 18, the guide roller 18 is rotatably connected to the end of the metal elastic rod 8, and the surface has an annular matching groove 19, and the annular matching groove 19 is adapted to the guide track 17.

[0064] It should be understood that under the guidance of the guide track 17, when the heating belt 7 enters the inner diversion pipe 14, the annular matching groove 19 of the guide roller 18 will first cooperate with the redirecting guide section 1701, so that the heating belt 7 bends and deforms, and then moves to the extended guide section 1702 under the support of the metal elastic rod 8 and the guidance of the guide roller 18, until the guide roller 18 moves to the vicinity of the second end 28 of the bag 2, thereby guiding the extension of the heating belt 7 and moving along the extension direction of the bag 2.

[0065] like Figure 7As shown, as an embodiment, it also includes a hot air blower 26, the exhaust port of the hot air blower 26 is connected to a third pipe, and the end of the third pipe is also connected to a flange connector, which is used to connect the third pipe to the grouting pipe when it is necessary to connect the third pipe to the grouting pipe. It should be understood that Figure 7 As shown, the hot air blower 26 can be connected to the first grouting pipe 3 through a flange connector, the end of the second row of grouting pipes 6 can be blocked by a plug, and air can be blown into the bag 2. The hot air expands the bag body, so that the bag body can perform primary squeezing and stabilizing of the surrounding soft soil, leaving a certain space, and then the third pipeline of the hot air blower is separated from the grouting pipe fittings, which is beneficial to reduce the resistance encountered during the initial grouting expansion for the later grouting of the bag 2.

[0066] like Figure 1 , Figure 6 and Figure 7 As shown, a support frame 22 is fixedly connected to the surface of the support body 1, and the support frame 22 is formed by interlacing a first support rod and a second support rod, and the support frame 22 surrounds the bag 2, and a gap is maintained between the bag 2. It should be understood that by providing the support frame 22, it is helpful to provide a certain barrier for the soil layer near the bag 2, which is helpful to reduce the squeezing force of the soil layer on the bag 2, and reduce the difficulty of grouting expansion of the bag 2 in the later stage.

[0067] like Fig.10 , Fig.11 , Fig.12 and Fig.13 As shown, the end of the metal elastic rod 8 is fixedly connected with a connecting ring 23, and the connecting ring 23 is sleeved in the annular matching groove 19 of the guide roller 18. By providing the connecting ring 23, the guide roller 18 is rotatably connected to the end of the metal elastic rod 8.

[0068] like Figure 1 As shown, the end of the diverter tube 14 has an opening 15, and a drainage hole 16 is opened on the surface. It should be understood that the opening 15 and the drainage hole 16 are provided to facilitate uniform diversion of the hot slurry flowing through the diverter tube 14.

[0069] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the grouting pipe fittings include a first grouting pipe 3 and a second grouting pipe 4, which are connected by a flange, and the first grouting pipe 3 is fixedly connected to the first end 27 of the bladder bag 2 after passing through the supporting body 1, and the first digital pressure measuring valve 20 is fixedly installed on the second grouting pipe 4, and the grouting pipe fittings include a first grouting pipe 5 and a second grouting pipe 6, and the second grouting pipe 6 is connected to the first grouting pipe 5 by a flange, and the first grouting pipe 5 is fixedly connected to the second end 28 of the bladder bag 2 after passing through the supporting body 1, and the second digital pressure measuring valve 21 is fixedly installed on the second grouting pipe 6. It should be understood that the first grouting pipe 3 and the second grouting pipe 4 can be disassembled through the flange connection, and the heating belt 7 can be inserted from the pipe mouth of the second grouting pipe 4 until it is inserted into the bladder bag 2, and then the first grouting pipe 3 and the second grouting pipe 4 can be connected again by a flange.

[0070] It needs to be further explained that, by flange-connecting the first grouting pipe 3 and the second grouting pipe 4, and by flange-connecting the second row of grouting pipe 6 and the first row of grouting pipe 5, the second row of grouting pipe 6 can be separated from the first row of grouting pipe 5, and the first grouting pipe 3 and the second grouting pipe 4 can be separated, so as to facilitate the removal of the second grouting pipe 4 and the second row of grouting pipe 6 and separately install the first digital pressure measuring valve 20 and the second digital pressure measuring valve 21.

[0071] like Fig.10 and Fig.12 As shown, it also includes a conductive end, which includes two electrodes 9. The two electrodes 9 are fixedly inserted into the second grouting pipe 4, and the surfaces of the two electrodes 9 are sleeved with conductive rings 11. The two conductive rings 11 are fixedly connected to the end of the heating belt 7 and are electrically connected to the two electrical terminals of the heating belt 7.

[0072] After the heating belt 7 is fully inserted into the bag 2, the two conductive rings 11 are respectively mounted on the two electrodes 9, which are respectively connected to the positive and negative electrodes. The two electrodes 9 are connected to an external power source to power on, so as to heat the space inside the bag 2. This realizes that the heating belt 7 can be heated by connecting electricity to the outside of the grouting pipe fittings, thereby preventing interference with the grouting of the grouting pipe fittings. Moreover, after the first grouting pipe 3 and the second grouting pipe 4 are disassembled, the heating belt can be easily separated from the electrodes 9.

[0073] like Fig.10 and Fig.12As shown, the second grouting pipe 4 includes a first connecting cavity 401 and a first connecting pipe 402, the first connecting cavity 401 is used to provide a space for accommodating two electrodes 9, the first digital pressure measuring valve 20 is fixedly installed on the first connecting pipe 402, the second slurry discharge pipe 6 includes a second connecting cavity 601 and a second connecting pipe 602, and the second digital pressure measuring valve 21 is fixedly installed on the second connecting pipe 602. By providing the first connecting pipe 402 and the second connecting pipe 602, a suitable pipeline installation position is provided for the first digital pressure measuring valve 20 and the second digital pressure measuring valve 21.

[0074] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A frost heave and thaw settlement control system for a communication channel in a soft soil area, comprising a support body (1) and a bladder bag (2), characterized in that: Also includes: A grouting pipe fitting, wherein the grouting pipe fitting passes through the support body (1) and is fixedly connected to the first end (27) of the bag (2); A slurry discharge pipe, wherein the slurry discharge pipe passes through the support body (1) and is fixedly connected to the second end (28) of the bag (2); A heating belt (7), the heating belt (7) extending into the interior of the bladder bag (2) after passing through the grouting pipe, a metal elastic rod (8) being fixedly connected to the surface of the heating belt (7); A first digital pressure measuring valve (20), the first digital pressure measuring valve (20) being fixedly mounted on the grouting pipe fitting; A second digital pressure measuring valve (21), wherein the second digital pressure measuring valve (21) is fixedly mounted on the slurry discharge pipe; A grouting machine (24), wherein a grouting port of the grouting machine (24) is connected to the grouting pipe member via a first pipe; A slurry extraction machine (25), wherein the slurry inlet of the slurry extraction machine (25) is connected to the slurry discharge pipe member via a second pipe; A controller (10), the controller (10) being used to control the start and stop of a grouting machine (24) and a grouting machine (25) according to pressure measurement information of a first digital pressure measuring valve (20) and a second digital pressure measuring valve (21).

2. A frost heave and thaw settlement control system for communication channels in soft soil areas according to claim 1, characterized in that: Also included is a flow diversion component, the flow diversion component comprising: An inner flow-dividing shell (13), the inner flow-dividing shell (13) being located inside the bladder bag (2), the two ends of the inner flow-dividing shell (13) being fixedly connected to the inner wall of the bladder bag (2), the top end of the grouting pipe being fixedly connected to the position of the inner flow-dividing shell (13) close to the first end (27), and a gap being provided between the inner flow-dividing shell (13) and the inner bottom surface of the bladder bag (2); A plurality of flow dividing tubes (14), wherein the plurality of flow dividing tubes (14) are respectively fixedly connected to two side surfaces of the inner flow dividing shell (13); Wherein, the heating belt (7) passes through the grouting pipe and extends to a position inside the inner flow dividing shell (13) close to the second end (28).

3. A frost heave and thaw settlement control system for a communication channel in a soft soil area according to claim 2, characterized in that: Also included is a guide component, the guide component comprising: A guide track (17), the guide track (17) comprising a direction-changing guide section (1701) and an extended guide section (1702), the guide track (17) being fixedly connected to the inner top surface of the inner flow-dividing shell (13); A guide roller (18), the guide roller (18) is rotatably connected to the end of the metal elastic rod (8), and has an annular matching groove (19) on its surface, the annular matching groove (19) being adapted to the guide track (17).

4. A frost heave and thaw settlement control system for a communication channel in a soft soil area according to claim 3, characterized in that: It also comprises a hot air blower (26), wherein an air outlet of the hot air blower (26) is connected to a third pipeline.

5. A frost heave and thaw settlement control system for communication channels in soft soil areas according to claim 4, characterized in that: A support frame (22) is also fixedly connected to the surface of the support body (1), the support frame (22) being formed by a first support rod and a second support rod being interlaced and arranged, the support frame (22) surrounding the sac (2) and maintaining a gap between the support frame (2) and the sac (2).

6. A frost heave and thaw settlement control system for a communication channel in a soft soil area according to claim 5, characterized in that: A connecting ring (23) is fixedly connected to the end of the metal elastic rod (8), and the connecting ring (23) is sleeved in the annular matching groove (19) of the guide roller (18).

7. A frost heave and thaw settlement control system for communication channels in soft soil areas according to claim 6, characterized in that: The end of the flow dividing tube (14) has an opening (15), and a drainage hole (16) is provided on the surface.

8. A frost heave and thaw settlement control system for communication channels in soft soil areas according to claim 7, characterized in that: The grouting pipe fitting comprises a first grouting pipe (3) and a second grouting pipe (4), the first grouting pipe (3) and the second grouting pipe (4) being connected via a flange, the first grouting pipe (3) passing through the supporting body (1) and being fixedly connected to the first end (27) of the bladder bag (2), the first digital pressure measuring valve (20) being fixedly mounted on the second grouting pipe (4), the slurry discharge pipe fitting comprises a first slurry discharge pipe (5) and a second slurry discharge pipe (6), the second slurry discharge pipe (6) and the first slurry discharge pipe (5) being connected via a flange, the first slurry discharge pipe (5) passing through the supporting body (1) and being fixedly connected to the second end (28) of the bladder bag (2), the second digital pressure measuring valve (21) being fixedly mounted on the second slurry discharge pipe (6).

9. A frost heave and thaw settlement control system for communication channels in soft soil areas according to claim 8, characterized in that: It also comprises a conductive end, the conductive end comprising two electrodes (9), the two electrodes (9) being fixedly plugged into the second grouting pipe (4), and the surfaces of the two electrodes (9) being sleeved with a conductive ring (11), the two conductive rings (11) being fixedly connected to the ends of the heating belt (7), and being electrically connected to the two electrical terminals of the heating belt (7).

10. A frost heave and thaw settlement control system for communication channels in soft soil areas according to claim 9, characterized in that: The second grouting pipe (4) comprises a first connecting cavity (401) and a first connecting pipe (402), the first connecting cavity (401) being used to provide a storage space for two electrodes (9), the first digital pressure measuring valve (20) being fixedly mounted on the first connecting pipe (402), the second slurry discharge pipe (6) comprising a second connecting cavity (601) and a second connecting pipe (602), the second digital pressure measuring valve (21) being fixedly mounted on the second connecting pipe (602).

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