Vibration device special for saline soil foundation reinforcement

Abstract

The utility model provides a special vibrating device for saline soil foundation reinforcement, which comprises a vibrating hammer and a vibrating rod or a vibrating plate, and the vibrating rod or the vibrating plate is mounted at the lower end of the vibrating hammer; wherein the vibrating rod is used for deep layer compaction, the vibrating plate is used for shallow layer compaction, and the vibrating rod and the vibrating plate can be used independently and can also be used in a combined mode to achieve full-section compaction of a soil body. The vibrating device special for saline soil foundation reinforcement has the advantages that the vibrating device can be used as a core functional part to remove soluble salt in a saline soil foundation, the dry density of the saline soil foundation is improved, the shallow soil compaction effect is improved, and then full compaction is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of saline soil foundation treatment, in particular to a special vibration device for reinforcing saline soil foundation. Background Art

[0002] Saline soil is widely distributed in northwest my country. Some engineering construction projects have to be carried out on saline soil. However, saline soil foundations pose a great construction safety risk.

[0003] Specifically, saline soil foundations are complex, subject to hazards such as solubility collapse, salt swelling, and corrosion. Solubility collapse refers to the dissolution and loss of soluble salts in saline soil after immersion in water, resulting in loose soil structure and soil subsidence. Salt swelling refers to the change in the state of soluble salts in saline soil due to changes in temperature or water content, causing an increase in soil volume. Corrosion refers to the chemical reaction between soluble salts in saline soil and reinforced concrete, causing corrosion. The presence of soluble salts in saline soil is the root cause of saline soil engineering problems, and appropriate reinforcement is necessary when using it as a natural foundation.

[0004] At present, removing soluble salts from the soil and then compacting it to increase the dry density of the soil is an effective reinforcement method.

[0005] The vibrating rod compaction method is a new foundation compaction construction method that can improve the density of the soil. However, this vibrating rod compaction method is currently unable to remove soluble salts from saline soil foundations. Therefore, how to transform the core functional component of the vibrating rod compaction method: the vibrating rod, so that it can be used for vibration compaction of saline soil foundations while also being able to remove soluble salts with the help of its function, is a technical problem that needs to be solved urgently.

[0006] In addition, vibration rod compaction is mainly used for deep soil compaction, and its effect on shallow soil compaction is limited. How to supplement the function of the vibration device so that it can compact shallow soil and ultimately achieve compaction of the entire section is a technical problem that needs to be solved urgently.

[0007] In order to solve the above problems, people have been seeking an ideal technical solution. Utility Model Content

[0008] The purpose of this utility model is to address the deficiencies of the existing technology and to provide a special vibration device for reinforcing saline soil foundations, which can serve as a core functional component to remove soluble salts from saline soil foundations, increase the dry density of saline soil foundations, improve the compaction effect of shallow soil, and thus achieve full-section compaction.

[0009] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0010] Solution 1

[0011] A vibration device specially designed for reinforcing saline soil foundations, comprising a lifting steel rope, a vibration-damping crossbeam, a vibration-damping spring, a vibration exciter, and a vibration rod, wherein the lifting steel rope is connected to the vibration-damping crossbeam, the vibration-damping crossbeam is connected to the vibration exciter via the vibration-damping spring, and the vibration rod is mounted at the lower end of the vibration exciter;

[0012] The vibration rod comprises a vibration rod body and wing plates, wherein the wing plates are distributed around the vibration rod body and fixed to the vibration rod body; the bottom end of the vibration rod body is in a pointed angle shape;

[0013] A through hole is provided in the vibration rod body along the length direction of the vibration rod body, and a plurality of injection holes are distributed on both sides of the vibration rod body along the length direction of the vibration rod body. The injection directions of the injection holes are arranged horizontally, and each of the injection holes is connected to the through hole; a water inlet and a water pumping port are respectively provided at the top of the through hole, the water inlet is used to connect to a high-temperature and high-pressure water source, and to generate a horizontal jet through each injection hole; the water pumping port is used to discharge water outward;

[0014] A heating channel is provided in the vibration rod body along the length direction of the vibration rod body, the heating channel is isolated from the through hole, and the heating channel is used for connecting an external circulating fluid heat source to heat the vibration rod body.

[0015] Based on the above, the inner wall material of the through hole of the vibration rod body is a high temperature resistant material.

[0016] Based on the above, the high temperature jet of the high temperature and high pressure jet refers to hot water with a temperature between 80° and 100°.

[0017] Based on the above, the high-pressure jet of the high-temperature and high-pressure jet refers to a water flow with a pressure between 0.5 MPa and 1.0 MPa.

[0018] Based on the above, the number of the wing plates is four, and the four wing plates are symmetrically distributed on both sides of the vibration rod body in pairs, and there is an angle between the two wing plates on the same side.

[0019] Based on the above, the heating channel is a U-shaped rotating channel opened in the vibration rod body, and the inlet and outlet of the U-shaped rotating channel are both located at the top of the vibration rod body.

[0020] Based on the above, the heating channel is located inside the through hole.

[0021] Based on the above, the vibration rod body and the wing plate are an integrally formed structure.

[0022] Based on the above, a hollow weight-reducing hole is provided in the central area of the vibration rod body.

[0023] Option 2

[0024] A special vibration device for reinforcing saline soil foundations includes a lifting steel rope, a vibration-damping beam, a vibration-damping spring, an exciter and a vibration plate. The lifting steel rope is connected to the vibration-damping beam, the vibration-damping beam is connected to the exciter through the vibration-damping spring, and the vibration plate is installed at the lower end of the exciter.

[0025] Based on the above, the vibration plate includes a plate surface and reinforcing ribs. The shape of the plate surface is a flat quadrangular pyramid without an upper bottom surface. The reinforcing ribs are steel plates distributed in a crisscross pattern and welded to the upper end of the plate surface. The exciter is connected to the reinforcing ribs.

[0026] Based on the above, the material of the vibration plate is solid manganese steel.

[0027] Option 3

[0028] A special vibration device for reinforcing saline soil foundation, comprising a vibration hammer, a vibration rod and a vibration plate, wherein the vibration rod and the vibration plate are replaceably mounted on the lower end of the vibration hammer;

[0029] The vibrating rod is the vibrating rod described above;

[0030] The vibration plate includes a plate surface and a reinforcing rib. The plate surface is in the shape of a flat quadrangular pyramid without an upper bottom surface. The reinforcing rib is a steel plate distributed in a crisscross pattern and welded to the upper end of the plate surface. The vibration hammer is connected to the reinforcing rib.

[0031] Based on the above, the vibration hammer is used in conjunction with the vibration rod for deep compaction of the soil foundation, and the vibration hammer is used in conjunction with the vibration plate for shallow compaction of the soil foundation.

[0032] The present invention has substantial features and progress over the prior art. Specifically, the present invention has the following advantages:

[0033] 1. The vibration rod can originally be used in conjunction with a vibration hammer to perform deep vibration and compaction on the foundation to increase the density of the foundation. On the basis of the traditional vibration rod, this solution adds through holes and injection holes, connects to an external high-temperature and high-pressure water source, and sprays high-temperature and high-pressure horizontal jets into the foundation from the injection holes, forming multi-layer water channels in the soil. As the water channels are formed, high-temperature and high-pressure water enters the soil and dissolves the soluble salts in the soil. At the same time, as the vibration proceeds, the dissolved water gathers in the water channels. After a certain period of vibration, the water containing the dissolved salts is pumped away through the through hole path in conjunction with the water pumping port, completing the removal of soluble salts in the saline soil foundation.

[0034] 2. The vibration rod is also integrated with a heating channel for heating the vibration rod, which is used to heat the vibration rod and the surrounding soil at the same time. The heated vibration rod can slow down the temperature loss rate of high-temperature water and ensure the effect of high-temperature and high-pressure water.

[0035] 3. The vibrating rod compaction method is a deep vibration compaction method, which has a general compaction effect on shallow soil, while the vibrating plate compaction method is suitable for compacting shallow soil.

[0036] In general, the first two solutions provided by this patent are suitable for compacting deep and shallow soil, respectively. The third solution, when used in combination, can achieve full-section compaction of the soil. Furthermore, the shared basic drive mechanism reduces the need for construction equipment and saves construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a structural schematic diagram of a special vibration device for reinforcing saline soil foundation in Example 1 of the present utility model.

[0038] Figure 2 It is a structural diagram of the vibration rod in Example 1 of the present utility model.

[0039] Figure 3 It is a schematic cross-sectional view of the vibration rod in Example 1 of the present utility model.

[0040] Figure 4 This is a schematic diagram of the application state of the special vibration device for reinforcing saline soil foundation in Example 1 of the utility model.

[0041] Figure 5 It is a structural schematic diagram of a special vibration device for reinforcing saline soil foundation in Example 2 of the present utility model.

[0042] Figure 6 It is a structural schematic diagram of the vibration plate in Example 2 of the present utility model.

[0043] Figure 7 This is a schematic diagram of the application state of the special vibration device for reinforcing saline soil foundation in Example 2 of the present utility model.

[0044] In the figure: 1. Vibrating rod body; 2. Wing plate; 3. Through hole; 4. Injection hole; 5. Water inlet; 6. Water extraction port; 7. Heating channel; 8. Vibrating hammer; 9. Lifting rope; 10. Vibrating rod; 11. Guide frame; 12. Vibration-damping beam; 13. Vibration-damping spring; 14. Vibrator; 15. Vibrating plate; 151. Plate surface; 152. Reinforcement ribs. DETAILED DESCRIPTION

[0045] The technical solution of the present utility model is further described in detail below through specific implementation methods.

[0046] Example 1

[0047] like Figures 1-4As shown, a special vibration device for reinforcing saline soil foundation includes a vibration hammer and a vibration rod. The vibration hammer includes a vibration-damping beam 12, a vibration-damping spring 13, and an exciter 14. The top of the vibration-damping beam 12 is used to connect to the lifting rope 9 of the mobile carrier. The vibration-damping beam is connected to the exciter through the vibration-damping spring. The vibration rod is installed at the lower end of the exciter.

[0048] The vibration rod includes a vibration rod body 1 and wing plates 2, the wing plates 2 are distributed around the vibration rod body 1 and fixed to the vibration rod body 1; the bottom end of the vibration rod body 1 is pointed; specifically, in this embodiment, the number of the wing plates 2 is four, and the four wing plates 2 are symmetrically distributed on both sides of the vibration rod body 1, and there is an angle between the two wing plates 2 on the same side. In this embodiment, the angle is an acute angle.

[0049] A through hole 3 is provided in the vibration rod body 1 along the length direction of the vibration rod body 1, and a number of injection holes 4 are distributed on both sides of the vibration rod body 1 along the length direction of the vibration rod body 1. The injection direction of the injection holes 4 is set horizontally, and each of the injection holes 4 is connected to the through hole 3; the top of the through hole 3 is respectively provided with a water inlet 5 and a water pumping port 6, the water inlet 5 is used to connect a high-temperature and high-pressure water source, and generate a horizontal jet through each injection hole 4; the water pumping port 6 is used to connect an external pumping equipment to discharge the water flow after dissolving the soluble salt.

[0050] A heating channel 7 is provided in the vibration rod body 1 along the length direction of the vibration rod body 1. The heating channel 7 is isolated from the through hole 3. The heating channel 7 is used to connect an external circulating fluid heat source to heat the vibration rod body 1. In this embodiment, the external heat source is an electric thermal oil furnace with a circulating power system. The heating channel 7 is designed as a U-shaped rotating channel. The inlet and outlet of the U-shaped rotating channel are both located at the top of the vibration rod body 1. The temperature of the vibration rod body 1 is maintained by the circulating heating oil.

[0051] In a preferred solution, the heating channel 7 is located inside the through hole 3 and can also heat and keep the water in the through hole 3 warm to a certain extent.

[0052] The inner wall material of the through hole of the vibration rod body 1 is a high-temperature resistant material. In this embodiment, the entire vibration rod body 1 and the wing plate 2 are designed as an integrated structure, and the material is designed to be steel with high-temperature resistance. In this embodiment, the high-temperature jet of the high-temperature and high-pressure jet refers to hot water with a temperature between 80°-100°, and the high-pressure jet of the high-temperature and high-pressure jet refers to a water flow with a pressure between 0.5MPa-1.0MPa.

[0053] In order to reduce the overall weight of the vibration rod, a hollow weight-reducing hole is opened in the central area of the vibration rod body 1.

[0054] Working principle description:

[0055] like Figure 4 As shown, the vehicle-mounted lifting equipment is connected to a vibration hammer 8 through a guide frame 11 and a lifting steel rope 9, and the vibration hammer 8 is used to connect the vibration rod 10 of the present invention.

[0056] During operation, the multifunctional vibrating rod is driven to vibrate by the vibrating hammer, and the vibrating rod is controlled to sink into the deep layer of the soil by the lifting steel rope to vibrate and compact the soil.

[0057] During the vibration compaction process, the external high-temperature and high-pressure water injection equipment is turned on. In this embodiment, a high-pressure water pump is used in conjunction with an electric water boiler to inject high-temperature and high-pressure hot water into the through hole, and then a horizontal jet is ejected outward from the injection hole 4 to form a multi-layer horizontal water passage in the soil. The high-temperature water is able to enter the surrounding soil and dissolve the soluble salts in the soil. Heat transfer oil is synchronously circulated in the heating channel 7 to maintain the temperature of the vibration rod body 1.

[0058] Specifically, since the salt particles in saline soil are part of the soil skeleton, dissolution may still occur even after the soil is compacted and immersed in water. In addition, the soluble salts in the soil layer may migrate upward with the groundwater, increasing the amount of salt accumulated on the surface, thereby affecting the reinforcement effect. To solve this problem, through holes and injection holes are set on the main body of the vibration rod to connect to high-temperature and high-pressure water. During the vibration compaction process, the method of spraying high-pressure hot water into the soil layer while vibrating and heating the soil through thermal oil is adopted. This method can use high-pressure water to create cracks in the soil layer, forming a horizontal water channel. The vibration energy can increase the width and length of the channel. The hot water can dissolve the soluble salts in the saline soil to the greatest extent. Heating the soil can reduce the temperature loss of hot water and increase the dissolution amount of soluble salts in the soil. Then, a water pump is used to extract the salt water in the soil from the horizontal and vertical drainage channels formed by the hollow through holes of the vibration rod and the cracks in the soil layer formed by the water spray.

[0059] At the same time, the vibrating rod will generate shear waves that propagate outward in a columnar shape along the length of the rod, causing changes in the vertical stress conditions of the soil layer and causing cyclic shear deformation and displacement of soil particles in the vertical direction; at the same time, the friction between the vibrating rod and the soil will generate horizontal compression waves and propagate around, increasing the horizontal stress of the soil layer and thus squeezing and compacting it; the cyclic shear and seepage generated by high-pressure water spraying destroy the soil structure and then squeeze the soil. The cyclic shear significantly increases the horizontal stress of the soil layer, thereby improving the soil density, and can also increase the soil vibration response to promote the rearrangement of soil particles.

[0060] This solution combines the working principles of the two and chooses to adopt a combination of vibration and water spraying, which can significantly increase the horizontal stress of the soil and the vibration speed of the soil particles, promote soil compaction and the dissolution of salt in the soil.

[0061] The specific structural form of the vibration hammer in this embodiment is mainly used as an example and is not a restriction. In other embodiments, the structural form of the vibration hammer may adopt a conventional vibration hammer of other structural types.

[0062] Example 2

[0063] like Figure 5-Figure 7 As shown, a special vibration device for reinforcing saline soil foundation includes a vibration hammer and a vibration plate. The vibration hammer includes a vibration-damping beam 12, a vibration-damping spring 13, an exciter 14 and a vibration plate 15. The vibration-damping beam 12 is used to connect with the lifting rope 9 of the mobile carrier. The vibration-damping beam 12 is connected to the exciter 14 through the vibration-damping spring 13. The vibration plate 15 is installed at the lower end of the exciter 14.

[0064] The vibration plate 15 includes a plate surface 151 and a reinforcing rib 152. The plate surface 151 is in the shape of a flat quadrangular pyramid without an upper bottom surface. The reinforcing rib 152 is a steel plate welded to the upper end of the plate surface in a crisscross pattern. The exciter 14 is connected to the reinforcing rib. The vibration plate is made of solid manganese steel.

[0065] Working principle description:

[0066] This solution is used after using a vibrating rod to treat deep soil, or when only surface compaction needs to be treated.

[0067] The use process is similar to that of the vibration rod, and the vehicle-mounted lifting equipment is still used to drive the guide frame 11 and the lifting rope 9 to control the vibration plate to reach the specified position to ensure the verticality of the vibration plate and the position to be processed.

[0068] When the vibration is started, the panel of the vibration plate is close to the ground surface and adjusted to the highest frequency. It is vibrated until there is no obvious settlement of the soil layer. The construction is completed point by point, and the vibration compaction process of the surface soil is realized. For the sunken areas of the ground, the soil is vibrated and compacted until it is parallel to the ground.

[0069] This solution makes up for the defect that deep vibration compaction cannot compact shallow soil.

[0070] The specific structural form of the vibration hammer in this embodiment is mainly used as an example and is not a restriction. In other embodiments, the structural form of the vibration hammer may adopt a conventional vibration hammer of other structural types.

[0071] Example 3

[0072] The main difference between this embodiment and embodiment 1 and embodiment 2 is that in this embodiment, the vibration rod and the vibration plate are used as a kit and are switchably assembled and connected to the vibration hammer.

[0073] It includes a vibrating hammer, a vibrating rod and a vibrating plate, wherein the vibrating rod and the vibrating plate are replaceably mounted on the lower end of the vibrating hammer;

[0074] The vibrating rod is the aforementioned vibrating rod;

[0075] The vibration plate includes a plate surface and a reinforcing rib plate. The shape of the plate surface is a flat quadrangular pyramid without an upper bottom surface. The reinforcing rib plate is a steel plate welded to the upper end of the plate surface and distributed in a crisscross pattern. The vibration hammer is connected to the reinforcing rib plate. The vibration hammer is used in conjunction with a vibration rod for deep compaction of the soil foundation, and the vibration hammer is used in conjunction with a vibration plate for shallow compaction of the soil foundation.

[0076] This solution is used when the vibration rod and vibration plate need to be used together. Only one set of main units is needed to achieve comprehensive compaction of deep and shallow soil foundations.

[0077] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and not to limit it; although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the utility model can still be modified or some technical features can be replaced by equivalents; without departing from the spirit of the technical solution of the utility model, they should all be included in the scope of the technical solution for which protection is requested in the utility model.

Claims

1. A special vibration device for saline soil foundation reinforcement, characterized by: It includes a vibrating hammer and a vibrating rod, wherein the vibrating rod is installed at the lower end of the vibrating hammer; The vibration rod comprises a vibration rod body and wing plates, wherein the wing plates are distributed around the vibration rod body and fixed to the vibration rod body; the bottom end of the vibration rod body is in a pointed angle shape; A through hole is provided in the vibration rod body along the length direction of the vibration rod body, and a plurality of injection holes are distributed on both sides of the vibration rod body along the length direction of the vibration rod body. The injection directions of the injection holes are arranged horizontally, and each of the injection holes is connected to the through hole; a water inlet and a water pumping port are respectively provided at the top of the through hole, the water inlet is used to connect to a high-temperature and high-pressure water source, and to generate a horizontal jet through each injection hole; the water pumping port is used to discharge water outward; A heating channel is provided in the vibration rod body along the length direction of the vibration rod body, the heating channel is isolated from the through hole, and the heating channel is used for connecting an external circulating fluid heat source to heat the vibration rod body.

2. The special vibration device for saline soil foundation reinforcement according to claim 1, characterized in that: The inner wall material of the through hole of the vibration rod body is made of high temperature resistant material.

3. The special vibration device for reinforcing saline soil foundation according to claim 1 or 2, characterized in that: The high temperature of the horizontal jet refers to hot water with a temperature between 80° and 100°; the high pressure of the horizontal jet refers to water flow with a pressure between 0.5 MPa and 1.0 MPa.

4. The special vibration device for reinforcing saline soil foundation according to claim 3, characterized in that: There are four wing plates, which are symmetrically distributed on both sides of the vibration rod body in pairs, and there is an angle between the two wing plates on the same side.

5. The special vibration device for reinforcing saline soil foundation according to claim 4, characterized in that: The heating channel is a U-shaped rotating channel opened in the vibration rod body, and the inlet and outlet of the U-shaped rotating channel are both located at the top of the vibration rod body; the heating channel is located on the inner side of the through hole.

6. The special vibration device for reinforcing saline soil foundation according to claim 5, characterized in that: The vibration rod body and the wing plate are an integrally formed structure; a hollow weight-reducing hole is provided in the central area of the vibration rod body.

7. A special vibration device for saline soil foundation reinforcement, characterized by: It includes a vibrating hammer and a vibrating plate, which is installed at the lower end of the vibrating hammer. The vibrating plate includes a plate surface and a reinforcing rib. The shape of the plate surface is a flat quadrangular pyramid without an upper bottom surface. The reinforcing rib is a steel plate distributed in a crisscross pattern and welded to the upper end of the plate surface. The vibrating hammer is connected to the reinforcing rib.

8. The special vibration device for reinforcing saline soil foundation according to claim 7, characterized in that: The vibration plate is made of solid manganese steel.

9. A special vibration device for saline soil foundation reinforcement, characterized by: It includes a vibrating hammer, a vibrating rod and a vibrating plate, wherein the vibrating rod and the vibrating plate are replaceably mounted on the lower end of the vibrating hammer; The vibration rod is the vibration rod according to any one of claims 1 to 6; The vibration plate includes a plate surface and a reinforcing rib. The plate surface is in the shape of a flat quadrangular pyramid without an upper bottom surface. The reinforcing rib is a steel plate distributed in a crisscross pattern and welded to the upper end of the plate surface. The vibration hammer is connected to the reinforcing rib.

10. The special vibration device for reinforcing saline soil foundation according to claim 9, characterized in that: The vibration hammer is used in conjunction with a vibration rod for deep compaction of the soil foundation, and the vibration hammer is used in conjunction with a vibration plate for shallow compaction of the soil foundation.

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