A reinforced collapsible loess foundation structure by heterofrequency microwave irradiation

Abstract

The utility model discloses a kind of reinforcing collapsible loess foundation's heterofrequency microwave irradiation structure, it is related to geotechnical engineering technical field, including foundation, the inside of foundation is provided with several groups of microwave hole and water injection hole, the inside of water injection hole is injected with Nacl solution;The inside of each group microwave hole is provided with the irradiation mechanism for heating foundation using microwave;The inside of each group water injection hole is provided with temperature measuring mechanism;By being provided with the microwave hole and the water injection hole of rectangular array distribution in the inside of foundation, using to the inside of water injection hole import heat conducting medium, cooperate the operation of irradiation mechanism and temperature measuring mechanism, the foundation is uniformly heated and reinforced.The utility model discloses a kind of reinforcing collapsible loess foundation's heterofrequency microwave irradiation structure has high operating efficiency and the effect of improving reinforcing quality.

Description

Technical Field

[0001] This utility model relates to the field of geotechnical engineering technology, and in particular to a heterogeneous microwave irradiation structure for reinforcing collapsible loess foundations. Background Technology

[0002] Loess is widely distributed in China, and most of it is collapsible loess. In engineering projects such as water conservancy and building construction, collapsible loess, when exposed to water, rapidly deteriorates under its own weight or overlying loads, leading to significant subsidence and deformation and damage to the foundation and superstructure. Therefore, foundation reinforcement is necessary when constructing projects in collapsible loess areas.

[0003] Traditional methods for treating collapsible loess foundations include the cushion layer method and dynamic compaction method. These methods alter the proportion of loess components in the foundation and change the original skeletal structure of the soil. Using traditional methods to treat collapsible loess foundations often incurs significant costs. If the disturbance to the original structure of the collapsible loess can be minimized and the undisturbed soil can be directly reinforced to reduce or eliminate its collapsibility, the cost of treating collapsible loess can be greatly reduced. In recent years, the concept of green development has gained widespread acceptance, so the impact on the surrounding environment must also be considered during foundation treatment. Microwave irradiation, due to its very high heating efficiency, is widely used in various industries. Compared to resistance wire heating, microwave heating is more environmentally friendly and efficient. Therefore, using microwave heating to thermally reinforce collapsible loess is a feasible approach. However, ordinary microwave irradiation suffers from uneven reinforcement, leading to unsatisfactory foundation reinforcement, thus presenting operational drawbacks that need to be addressed. Utility Model Content

[0004] This utility model discloses a heterogeneous microwave irradiation structure for reinforcing collapsible loess foundations, aiming to solve the technical problem that existing methods of reinforcing foundations using microwave irradiation result in uneven microwave reinforcement during actual operation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A heterogeneous microwave irradiation structure for reinforcing collapsible loess foundation includes a foundation, the foundation having several sets of microwave holes and water injection holes inside, each set of microwave holes and water injection holes being interspersed, each water injection hole being located in the middle of four adjacent microwave holes, and the water injection hole being injected with NaCl solution. Each of the microwave holes is equipped with an irradiation mechanism that uses microwaves to heat the foundation. The irradiation mechanism includes a bracket distributed on the top of each microwave hole. A base is slidably fitted inside the bracket. An electric push rod is fixedly installed on the top of the bracket. The output end of the electric push rod is fixedly connected to the top of the base. Each set of water injection holes is equipped with a temperature measuring mechanism inside; By providing microwave holes and water injection holes arranged in a rectangular array inside the foundation, and by introducing a heat-conducting medium into the water injection holes, the foundation is uniformly heated and reinforced in conjunction with the operation of the irradiation mechanism and the temperature measurement mechanism.

[0006] By incorporating several sets of rectangularly distributed microwave holes and water injection holes within the foundation, and inserting irradiation mechanisms into the microwave holes, high-frequency and low-frequency microwaves are used. High-frequency microwaves, with their shorter propagation distance, are primarily absorbed by the nearby foundation soil, while low-frequency microwaves, with their longer propagation distance, are primarily absorbed by the more distant foundation soil. This results in uniform heating of the foundation. Simultaneously, the water injection holes are pre-injected with NaCl solution, which, upon infiltration into the loess foundation, significantly increases the imaginary part of the dielectric constant of collapsible loess, allowing even the foundation soil farther from the microwave holes to reach higher temperatures. This makes the microwave irradiation reinforcement of the loess foundation more uniform. Furthermore, an additional temperature measurement mechanism works in conjunction with the irradiation mechanism, assisting construction personnel in comparing and observing whether the foundation is heated uniformly, thereby further improving the operational reliability of the equipment.

[0007] In a preferred embodiment, the irradiation mechanism further includes a high-frequency magnetron and a low-frequency magnetron symmetrically arranged inside the base, a conductive assembly is installed through the center of the base, and the high-frequency magnetron and the low-frequency magnetron are symmetrically distributed on the outside of the conductive assembly.

[0008] The base structure, which is slidably installed inside the support, is used to place the support on top of the microwave hole. The base is then moved vertically by an electric push rod, which in turn drives the conductive component to insert into the microwave hole. The base also contains a high-frequency magnetron and a low-frequency magnetron. The high-frequency magnetron emits high-frequency microwaves, and the low-frequency magnetron emits low-frequency microwaves. The high-frequency microwaves have a short propagation distance and are mainly absorbed by the nearby foundation soil, while the low-frequency microwaves have a long propagation distance and are mainly absorbed by the foundation soil at a greater distance. The conductive component guides the high-frequency and low-frequency microwaves into the foundation, thereby uniformly heating the foundation.

[0009] In a preferred embodiment, the temperature measuring mechanism includes a first temperature sensor disposed on the side of each group of irradiation mechanisms. The first temperature sensor is distributed on the side of the microwave hole. A pole is placed inside each water injection hole. A second temperature sensor is fixedly installed at the bottom of each pole. The second temperature sensor is located at the bottom of the water injection hole. Several poles are connected sequentially by a single bundle of wires.

[0010] By additionally installing a first temperature sensor and a second temperature sensor on the outside of the microwave hole and inside the water injection hole, two sensors in different locations are used to reflect the temperature conditions at different locations of the foundation. This allows workers to conveniently observe the uniformity of the foundation's heating in real time and improves the operational reliability of the equipment.

[0011] In a preferred embodiment, the conductive assembly includes a first microwave antenna slidably mounted in the middle of the base, a second microwave antenna being threadedly connected to the top of the first microwave antenna, a threaded groove being provided on the outer side of the second microwave antenna, a drive ring being rotatably mounted in the middle of the base, an electrically controlled rotating rod being provided on the top of the base, the drive ring being threadedly connected to the threaded groove, and the electrically controlled rotating rod being connected to the drive ring via a belt drive.

[0012] By incorporating a conductive assembly consisting of a first microwave antenna and a second microwave antenna, the first microwave antenna is driven into the microwave aperture by an electric push rod. The second microwave antenna and the first microwave antenna are then moved a second time by an electrically controlled rotating rod, a drive ring, and a threaded groove. The length of the second microwave antenna can be adjusted according to the depth of the microwave aperture, thereby further improving the applicability and functionality of the device.

[0013] As can be seen from the above, the heterogeneous microwave irradiation structure for reinforcing collapsible loess foundations provided by this utility model has the following technical effects.

[0014] Firstly, by setting up several sets of rectangularly evenly distributed microwave holes and water injection holes inside the foundation, and using a base structure that is slidably installed inside the support, the support is erected on top of the microwave holes. After the support is erected, the base is moved vertically by an electric push rod, thereby driving the conductive components to be inserted into the microwave holes. In addition, a high-frequency magnetron and a low-frequency magnetron structure are set inside the base. The high-frequency magnetron emits high-frequency microwaves, and the low-frequency magnetron emits low-frequency microwaves. The high-frequency microwaves have a short propagation distance and are mainly absorbed by the foundation soil that is closer, while the low-frequency microwaves have a long propagation distance and are mainly absorbed by the foundation soil that is farther away. This uniformly heats the foundation, improving the reinforcement efficiency and quality.

[0015] Secondly, the water injection hole is pre-injected with artificially prepared NaCl solution, which, after infiltrating into the loess foundation, can significantly increase the imaginary part of the dielectric constant of collapsible loess, so that the foundation soil far from the microwave hole can also reach a higher temperature, making the microwave irradiation reinforcement of the loess foundation more uniform.

[0016] Thirdly, by setting the conductive component to consist of a first microwave antenna and a second microwave antenna, the first microwave antenna is driven into the microwave aperture by the push of the electric push rod, and the second microwave antenna and the first microwave antenna are moved a second time by the electric control rotating rod, the drive ring and the threaded groove. The second microwave antenna can be replaced according to the depth of the microwave aperture, thereby further improving the applicability and functionality of this device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure proposed in this utility model.

[0018] Figure 2 This is a top view of the overall structure proposed in this utility model.

[0019] Figure 3 This is a schematic diagram showing the connection state of the irradiation mechanism and the temperature measurement mechanism proposed in this utility model.

[0020] Figure 4 This is a schematic diagram of the temperature measuring mechanism proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the irradiation mechanism proposed in this utility model.

[0022] Figure 6 This is an exploded view of the irradiation mechanism structure proposed in this utility model.

[0023] Figure 7 This is a schematic diagram of the top structure of the base proposed in this utility model.

[0024] Figure 8 This is an exploded view of the conductive component structure proposed in this utility model.

[0025] Figure 9 This is a schematic diagram of the bottom structure of the bracket proposed in this utility model.

[0026] Figure 10 This is a schematic diagram of the operating state of the irradiation mechanism proposed in this utility model.

[0027] Figure 11 This is a cross-sectional view of the bottom structure of the bracket proposed in this utility model.

[0028] In the diagram: 1. Foundation; 101. Microwave hole; 102. Water injection hole; 2. Irradiation mechanism; 201. Support; 2011. Base plate; 2012. Rivet; 2013. Claw plate; 2014. Spring; 202. Base; 203. Electric push rod; 204. High-frequency magnetron; 205. Low-frequency magnetron; 206. Conducting component; 2061. First microwave antenna; 2062. Second microwave antenna; 2063. Threaded groove; 2064. Drive ring; 2065. Electric control rotating rod; 2066. Belt; 2067. Straight groove; 2068. Limiting plate; 207. Multi-stage telescopic rod; 208. Double bundle of wires; 209. Controller; 210. Power supply; 3. Temperature measurement mechanism; 301. First temperature sensor; 302. Upright pole; 303. Second temperature sensor; 304. Single bundle of wires. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0030] The hetero-frequency microwave irradiation structure for reinforcing collapsible loess foundations disclosed in this utility model is mainly applied to the scenario of thermal reinforcement of collapsible loess foundations.

[0031] Reference Figures 1 to 11 A heterogeneous microwave irradiation structure for reinforcing collapsible loess foundation includes a foundation 1. The foundation 1 has several sets of microwave holes 101 and water injection holes 102 inside. Each set of microwave holes 101 and water injection holes 102 are interspersed. Each water injection hole 102 is located in the middle of four adjacent microwave holes 101. NaCl solution is injected into the interior of the water injection hole 102. Each microwave aperture 101 is equipped with an irradiation mechanism 2 that uses microwaves to heat the foundation 1. The irradiation mechanism 2 includes a support 201 distributed on the top of each microwave aperture 101. A base 202 is slidably sleeved inside the support 201. An electric push rod 203 is fixedly installed on the top of the support 201. The output end of the electric push rod 203 is fixedly connected to the top of the base 202. Each set of water injection holes 102 is equipped with a temperature measuring mechanism 3 inside; By setting microwave holes 101 and water injection holes 102 arranged in a rectangular array inside the foundation 1, and introducing a heat-conducting medium into the water injection holes 102, the foundation 1 is uniformly heated and reinforced in conjunction with the operation of the irradiation mechanism 2 and the temperature measuring mechanism 3.

[0032] In this embodiment: Using drilling tools, construction workers create microwave holes 101 and water injection holes 102 at staggered positions on the top of the foundation 1 to be reinforced, according to pre-defined locations. NaCl solution is injected into the water injection holes 102. Both microwave holes 101 and water injection holes 102 have a depth of 2 meters. After the NaCl solution has evenly infiltrated into the foundation 1, the construction workers work together to move the irradiation device 2 to the top of the foundation 1 and fix it to the top of the microwave holes 101. The workers then bring the temperature measuring device 3 to the top of the foundation 1 and insert it into the water injection holes 102. The workers then activate the irradiation device 2, causing the microwave holes 101 to be heated by microwave irradiation. Simultaneously, the heat is transferred to the water injection holes 102 via the pre-infiltrated NaCl solution. The workers use the temperature measuring device 3 to observe the temperature difference between the microwave holes 101 and the water injection holes 102 until both temperatures reach or exceed the set temperature, thus completing the reinforcement work.

[0033] Reference Figure 3 , Figures 5 to 10 In a preferred embodiment, the irradiation mechanism 2 further includes a high-frequency magnetron 204 and a low-frequency magnetron 205 symmetrically arranged inside the base 202. A conduction component 206 is installed through the middle of the base 202, and the high-frequency magnetron 204 and the low-frequency magnetron 205 are symmetrically distributed on the outside of the conduction component 206.

[0034] Using drilling tools, construction workers drilled microwave holes 101 and water injection holes 102 at predetermined locations on the top of the foundation 1 to be reinforced. NaCl solution was injected into the water injection holes 102. Both microwave holes 101 and water injection holes 102 were 2 meters deep. After the NaCl solution had evenly infiltrated into the foundation 1, the workers worked together to move the irradiation unit 2 to the top of the foundation 1. Each support 201 was then placed on top of each microwave hole 101. The workers then activated the electric actuator 203, causing its output axis to extend outwards, thus pushing the base 202 vertically downwards along the interior of the support 201. Simultaneously, the base 202 was moved downwards. The conductive component 206 is vertically inserted into the microwave aperture 101 until its bottom contacts the bottom of the microwave aperture 101. At this time, the high-frequency magnetron 204 and the low-frequency magnetron 205 located inside the base 202 begin to operate. The high-frequency magnetron 204 emits high-frequency microwaves, and the low-frequency magnetron 205 emits low-frequency microwaves. The high and low frequency microwaves are conducted to the interior of the microwave aperture 101 through the conductive component 206. The high-frequency microwaves have a short propagation distance and are mainly absorbed by the nearby foundation 1, while the low-frequency microwaves have a long propagation distance and are mainly absorbed by the distant foundation 1. This uniformly heats the foundation 1, improving the reinforcement efficiency and quality.

[0035] Each base 202 is fixedly connected to a multi-stage telescopic rod 207. The multi-stage telescopic rod 207 connects several bases 202. With the push of the electric push rod 203, all bases 202 can be moved without affecting the spacing adjustment between the bases 202.

[0036] Furthermore, several base stations 202 are interconnected in sequence through a double-bundle wire 208. The end of the double-bundle wire 208 is connected to a controller 209, and the end of the controller 209 is connected to a power supply 210. The controller 209 controls the operation of the high-frequency magnetron 204 and the low-frequency magnetron 205, while the power supply 210 provides power. like Figure 11 As shown, a base plate 2011 is fixedly installed at the bottom of the bracket 201. The base plate 2011 is in contact with the foundation 1. Each base plate 2011 is fitted onto the top of a microwave hole 101. Several rivets 2012 are evenly fixed at the bottom of the base plate 2011. The rivets 2012 are inserted into the interior of the foundation 1 to improve the stability of the bracket 201 after it is fixed. Several claw plates 2013 are rotatably installed in the middle of the base plate 2011. A spring 2014 connects the claw plates 2013 and the base plate 2011. The downwardly moving conductive component 206 will squeeze the upper end of the claw plate 2013, causing it to move horizontally outward and insert into the side wall of the microwave hole 101, thereby further improving the stability of the bracket 201 after it is fixed. The lower end of the claw plate 2013 will engage with the groove on the outer wall of the rivet 2012 to further improve the stability between them.

[0037] Reference Figures 1 to 4 In a preferred embodiment, the temperature measuring mechanism 3 includes a first temperature sensor 301 disposed on the side of each group of irradiation mechanisms 2. The first temperature sensor 301 is distributed on the side of the microwave hole 101. A pole 302 is placed inside each water injection hole 102. A second temperature sensor 303 is fixedly installed at the bottom of each pole 302. The second temperature sensor 303 is located at the bottom of the water injection hole 102. Several poles 302 are connected in sequence by a single bundle of wires 304.

[0038] Before the irradiation mechanism 2 is put into operation, the construction personnel need to place the first temperature sensor 301 on the side of a microwave hole 101, and at the same time, carry several uprights 302 in turn and place the second temperature sensor 303 at the bottom of the uprights 302 inside the water injection hole 102. As the irradiation mechanism 2 is put into operation, as the temperature inside the microwave hole 101 and the water injection hole 102 increases, the first temperature sensor 301 and the second temperature sensor 303 will record the temperature difference at different locations of the foundation 1 in real time until the temperature reaches the set value, thus completing the reinforcement work of the loess foundation 1.

[0039] Reference Figures 1 to 3 , Figures 5 to 10 In a preferred embodiment, the conductive assembly 206 includes a first microwave antenna 2061 slidably mounted in the middle of the base 202, a second microwave antenna 2062 threadedly connected to the top of the first microwave antenna 2061, a threaded groove 2063 provided on the outer side of the second microwave antenna 2062, a drive ring 2064 rotatably mounted in the middle of the base 202, an electrically controlled rotating rod 2065 provided on the top of the base 202, the drive ring 2064 and the threaded groove 2063 being threadedly connected, and the electrically controlled rotating rod 2065 and the drive ring 2064 being connected by a belt 2066.

[0040] The worker activates the electric push rod 203, causing its output axis to extend outward. This pushes the base 202 vertically downward along the interior of the bracket 201. Simultaneously, the conductive component 206 is driven, causing the first microwave antenna 2061 to vertically insert into the microwave hole 101. At this point, the base 202 and the top of the microwave hole 101 are in contact, completing the first half of the movement. Then, the electrically controlled rotating rod 2065 starts running, driving the drive ring 2064 to rotate via the belt 2066. The rotating drive ring 2064 drives the second microwave antenna 2062 through the threaded groove 2063, causing the second microwave antenna 2062 to drive the first microwave antenna 2061 to continue moving towards the interior of the microwave hole 101, completing the second half of the movement. Depending on the depth of the microwave hole 101, before reinforcement work, the worker can select multiple second microwave antennas 2062 to be threaded together to increase the overall length and ensure it matches the depth of the microwave hole 101.

[0041] It is worth noting that during operation, the second microwave antenna 2062 and the first microwave antenna 2061 need to be fully inserted into the microwave aperture 101 to avoid being exposed to the ground and endangering human health.

[0042] The bracket 201 has a limiting plate 2068 fixedly installed at the lower interior. The first microwave antenna 2061 has a straight groove 2067 on its outer side. The straight groove 2067 and the limiting plate 2068 are slidably connected. The limiting relationship between the straight groove 2067 and the limiting plate 2068 is used to limit the second microwave antenna 2062 driven by the threaded groove 2063, so as to prevent the second microwave antenna 2062 from rotating.

[0043] Working principle: During use, construction personnel use drilling tools to drill microwave holes 101 and water injection holes 102 at predetermined locations on the top of the foundation 1 to be reinforced. NaCl solution is then injected into the water injection holes 102. Both microwave holes 101 and water injection holes 102 have a depth of 2 meters. After the NaCl solution has evenly penetrated into the foundation 1, the construction personnel work together to move the irradiation device 2 to the top of the foundation 1. Each support 201 is then fixedly placed on top of each microwave hole 101. Subsequently, the worker activates the electric push rod 203, causing its output axis to extend outwards, thereby pushing the base 202 vertically downwards along the interior of the support 201. Simultaneously with the downward movement, the conductive component 206 is driven, causing the first microwave antenna 2061 to be vertically inserted into the microwave aperture 101. At this point, the base 202 and the top of the microwave aperture 101 are in contact, completing the first half of the movement. Then, the electrically controlled rotating rod 2065 begins to operate, driving the drive ring 2064 to rotate via the belt 2066. The rotating drive ring 2064 uses the threaded groove 2063 to drive the second microwave antenna 2062, causing the second microwave antenna 2062 to drive the first microwave antenna 2061 to continue moving towards the interior of the microwave aperture 101, completing the second half of the movement. Depending on the depth of the microwave aperture 101, workers can rotate the second microwave antenna before reinforcement work begins. 2062, the second microwave antenna 2062 is removed from the top of the first microwave antenna 2061, and the second microwave antenna 2062, with a suitable length according to the hole depth, is installed on top of the first microwave antenna 2061 until the bottom of the first microwave antenna 2061 contacts the bottom of the microwave hole 101. At this time, the high-frequency magnetron 204 and the low-frequency magnetron 205 located inside the base 202 begin to operate. The high-frequency magnetron 204 emits high-frequency microwaves, and the low-frequency magnetron 205 emits low-frequency microwaves. The high and low frequency microwaves are conducted to the interior of the microwave hole 101 through the conduction component 206. However, the high-frequency microwave has a short propagation distance and is mainly absorbed by the nearby ground 1. The low-frequency microwave has a short propagation distance. The long irradiation distance allows the radiation to be absorbed primarily by the distant foundation 1, thus uniformly heating the foundation 1. Before the irradiation mechanism 2 is put into operation, the construction personnel need to place the first temperature sensor 301 on the side of a microwave hole 101, and simultaneously carry several uprights 302 in sequence, placing the second temperature sensor 303 at the bottom of the uprights 302 inside the water injection hole 102. As the irradiation mechanism 2 is put into operation, and as the temperature inside the microwave hole 101 and the water injection hole 102 increases, the first temperature sensor 301 and the second temperature sensor 303 will record the temperature difference at different locations on the foundation 1 in real time until the temperature reaches the set value, thus completing the reinforcement work on the loess foundation 1.

[0044] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A heterogeneous microwave irradiation structure for reinforcing collapsible loess foundations, comprising a foundation (1), characterized in that, The foundation (1) has several sets of microwave holes (101) and water injection holes (102) inside. Each set of microwave holes (101) and water injection holes (102) are interspersed. Each water injection hole (102) is located in the middle of four adjacent microwave holes (101). Nacl solution is injected into the inside of the water injection hole (102). Each of the microwave holes (101) is equipped with an irradiation mechanism (2) for heating the foundation (1) using microwaves. The irradiation mechanism (2) includes a bracket (201) distributed on the top of each microwave hole (101). A base (202) is slidably sleeved inside the bracket (201). An electric push rod (203) is fixedly installed on the top of the bracket (201). The output end of the electric push rod (203) is fixedly connected to the top of the base (202). Each of the water injection holes (102) is equipped with a temperature measuring mechanism (3). By providing microwave holes (101) and water injection holes (102) arranged in a rectangular array inside the foundation (1), and by staggering the microwave holes (101) and water injection holes (102), the foundation (1) is uniformly heated and reinforced by introducing a heat-conducting medium into the water injection holes (102) in conjunction with the operation of the irradiation mechanism (2) and the temperature measuring mechanism (3).

2. The heterogeneous microwave irradiation structure for reinforcing collapsible loess foundations according to claim 1, characterized in that, The irradiation mechanism (2) also includes a high-frequency magnetron (204) and a low-frequency magnetron (205) symmetrically arranged inside the base (202). A conductive assembly (206) is installed through the middle of the base (202). The high-frequency magnetron (204) and the low-frequency magnetron (205) are symmetrically distributed on the outside of the conductive assembly (206).

3. The heterogeneous microwave irradiation structure for reinforcing collapsible loess foundations according to claim 1, characterized in that, The temperature measuring mechanism (3) includes a first temperature sensor (301) disposed on the side of each group of irradiation mechanisms (2). The first temperature sensor (301) is distributed on the side of the microwave hole (101). A pole (302) is placed inside each water injection hole (102). A second temperature sensor (303) is fixedly installed at the bottom of each pole (302). The second temperature sensor (303) is located at the bottom of the water injection hole (102). Several poles (302) are connected in sequence by a single bundle of wires (304).

4. The heterogeneous microwave irradiation structure for reinforcing collapsible loess foundations according to claim 2, characterized in that, The conductive assembly (206) includes a first microwave antenna (2061) slidably mounted in the middle of the base (202). A second microwave antenna (2062) is screwed to the top of the first microwave antenna (2061) by a thread. A threaded groove (2063) is provided on the outer side of the second microwave antenna (2062). A drive ring (2064) is rotatably mounted in the middle of the base (202). An electrically controlled rotating rod (2065) is provided on the top of the base (202). The drive ring (2064) and the threaded groove (2063) are threadedly connected. The electrically controlled rotating rod (2065) and the drive ring (2064) are connected by a belt (2066).

5. The heterogeneous microwave irradiation structure for reinforcing collapsible loess foundations according to claim 1, characterized in that, Each of the bases (202) is fixedly connected to a multi-stage telescopic rod (207) in pairs.

6. The heterogeneous microwave irradiation structure for reinforcing collapsible loess foundations according to claim 1, characterized in that, Several of the bases (202) are connected to each other in sequence by a double-bundle wire (208), the end of which is connected to a controller (209), and the end of the controller (209) is connected to a power supply (210).

7. A heterogeneous microwave irradiation structure for reinforcing collapsible loess foundations according to claim 4, characterized in that, A limiting plate (2068) is fixedly installed inside the lower part of the bracket (201). A straight groove (2067) is provided on the outer side of the first microwave antenna (2061). The straight groove (2067) and the limiting plate (2068) are slidably connected.

8. A heterogeneous microwave irradiation structure for reinforcing collapsible loess foundations according to claim 4, characterized in that, The bottom of the bracket (201) is fixedly installed with a base plate (2011), the base plate (2011) is in contact with the foundation (1), and each base plate (2011) is correspondingly sleeved on the top of a microwave hole (101). Several rivets (2012) are evenly fixed on the bottom of the base plate (2011), and the rivets (2012) are inserted into the interior of the foundation (1).

9. A heterogeneous microwave irradiation structure for reinforcing collapsible loess foundations according to claim 8, characterized in that, A number of claw plates (2013) are rotatably mounted in the middle of the base plate (2011). A spring (2014) is connected between the claw plates (2013) and the base plate (2011). When the claw plates (2013) are squeezed, they will penetrate into the side wall of the microwave hole (101) and engage with the groove on the outer wall of the rivet (2012).

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