CN-224213268-U - Foundation treatment device combining grouting and vibroflotation

CN224213268UCN 224213268 UCN224213268 UCN 224213268UCN-224213268-U

Abstract

The utility model discloses a foundation treatment device combining grouting and vibroflotation, which relates to the technical field of foundation treatment of civil engineering and comprises a hanging head, a hanging rod, a shock absorber, a motor and a vibration exciter which are sequentially connected from top to bottom, wherein the bottom end of the vibration exciter is provided with a water spray port, the outer side wall of the vibration exciter is provided with a grouting spray head, the hanging rod, the shock absorber, the motor and the vibration exciter are internally provided with a water supply channel and a grouting channel which are communicated with an external supply system, the water supply channel is communicated with the water spray port, and the grouting channel is communicated with the grouting spray head. The utility model organically combines the two reinforcing modes of vibroflotation and grouting, realizes synchronous operation of vibroflotation and grouting through the water jet and the grouting nozzle, not only utilizes the vibration and scouring action of the vibroflotation method to improve the soil structure, but also fills pores and enhances the soil strength by the grouting method, fully plays the advantages of the two methods, makes up the defect of the single method, and remarkably improves the foundation reinforcing effect.

Inventors

Fan Runting
HUANG ZHIHANG
CHEN JUN
Diao Yitao
LIU XINYU
LUO ZIWEI
LIU YAZHE

Assignees

浙江工业大学

Dates

Publication Date: 20260508
Application Date: 20250226

Claims (8)

1. The foundation treatment device combining grouting and vibroflotation comprises a hanging head (1), a hanging rod (2), a shock absorber (3), a motor (4) and a vibration exciter (5) which are sequentially connected from top to bottom, and is characterized in that: The bottom end of the vibration exciter (5) is provided with a water jet (6); The outer side wall of the vibration exciter (5) is provided with a grouting spray head (7); The novel grouting device comprises a hanging head (1), a hanging rod (2), a shock absorber (3), a motor (4) and a vibration exciter (5), wherein a water supply channel (8) and a grouting channel (9) which are communicated with an external supply system are arranged in the hanging head, the hanging rod, the shock absorber, the motor (4) and the vibration exciter (5), the water supply channel (8) is communicated with a water spraying port (6), and the grouting channel (9) is communicated with a grouting spray head (7).
2. The foundation treatment device combining grouting and vibroflotation according to claim 1, further comprising a monitoring module, wherein the monitoring module comprises a pulse generator (10), an ultrasonic sensor (11) and an oscilloscope (12), the pulse generator (10) is installed on the vibration exciter (5), the ultrasonic sensor (11) and the oscilloscope (12) are arranged outside equipment, and ultrasonic signals of the pulse generator (10) are collected through the ultrasonic sensor (11) and converted into electric signals to be fed back to the oscilloscope (12).
3. A foundation treatment device combining grouting and vibroflotation according to claim 2, characterized in that the ultrasonic sensor (11) and the oscilloscope (12) are arranged close to the equipment perforation.
4. The foundation treatment device combining grouting and vibroflotation according to claim 1, characterized in that the number of grouting nozzles (7) is plural and evenly arranged around the outer side wall of the vibration exciter (5).
5. The foundation treatment device combining grouting and vibroflotation according to claim 1, wherein the supply system comprises a water tank (13), a bacteria liquid tank (14) and a cementing liquid tank (15), the water tank (13) is connected with one end of the water supply channel (8) far away from the water spraying port (6) through a water supply pipe (16), and the bacteria liquid tank (14) and the cementing liquid tank (15) are connected with one end of the grouting channel (9) far away from the grouting spray head (7) through a bacteria liquid pipe (17) and a cementing liquid pipe (18) respectively.
6. The foundation treatment device combining grouting and vibroflotation according to claim 5, characterized in that the water supply pipe (16) is provided with a water pump (19), a first pressure gauge (20) and a first control valve (21).
7. The foundation treatment device combining grouting and vibroflotation according to claim 5 or 6, wherein a second control valve (22) and a third control valve (23) are respectively arranged on the bacterial liquid pipe (17) and the cementing liquid pipe (18), the bacterial liquid pipe (17) and the cementing liquid pipe (18) are connected with one end, far away from the grouting nozzle (7), of the grouting channel (9) after being converged by the grouting main pipe (24), and a grouting pump (25) and a second pressure gauge (26) are arranged on the grouting main pipe (24).
8. The foundation treatment device combining grouting and vibroflotation according to claim 1, wherein the vibration exciter (5) drives the eccentric block to rotate through the motor (4) to generate high-frequency vibration.

Description

Foundation treatment device combining grouting and vibroflotation Technical Field The utility model relates to the technical field of civil engineering foundation treatment, in particular to a foundation treatment device combining grouting and vibroflotation. Background With the increasing frequency of ocean development and coastal construction activities and the increasing of special engineering construction demands, the reinforcement engineering of the dredger fill foundation is more and more. The dredger fill has the characteristics of looseness, wide grading and complex components, and if foundation treatment is not carried out, the bearing capacity can not meet the requirements of an upper building, long-term settlement is easy to occur, and meanwhile, the risk of seismic liquefaction is accompanied. The vibroflotation method is a common foundation treatment method for reinforcing a dredger fill foundation, and the foundation is treated by vibration, flushing and backfill compaction, but the vibroflotation method has poor treatment effect on a fine particle soil layer. Grouting is a method for enhancing the strength, impermeability and stability of a foundation by injecting grout into a soil body or a rock stratum and by filling, penetrating, compacting or cementing the grout. The grouting method is suitable for various earthiness, and grouting materials and pressure are required to be selected according to soil properties. Disclosure of utility model In order to improve the foundation strengthening effect of the vibroflotation method, the utility model provides a foundation treatment device combining grouting and vibroflotation, which has the following technical scheme: in order to achieve the above purpose, the present utility model adopts the following technical scheme: A foundation treatment device combining grouting and vibroflotation comprises a hanging head, a hanging rod, a shock absorber, a motor and a vibration exciter which are sequentially connected from top to bottom; the bottom end of the vibration exciter is provided with a water jet; a grouting spray nozzle is arranged on the outer side wall of the vibration exciter; The hanging head, the hanging rod, the shock absorber, the motor and the vibration exciter are internally provided with a water supply channel and a grouting channel which are communicated with an external supply system, the water supply channel is communicated with the water spraying port, and the grouting channel is communicated with the grouting spray head. Through the technical scheme, the vibration punching and grouting reinforcement modes are organically combined, synchronous operation of vibration punching and grouting is realized through the water spraying port and the grouting nozzle, the soil structure is improved by utilizing the vibration and scouring effects of the vibration punching method, the holes are filled by the grouting method, the soil strength is enhanced, the advantages of the two methods are fully exerted, the defect of a single method is overcome, and the foundation reinforcement effect is remarkably improved. All the components are connected in sequence to form integrated equipment, so that the integrated equipment has a compact overall structure, is convenient to operate and transport, is suitable for being used in various complex construction environments, and improves the applicability and flexibility of equipment. The synergistic effect of vibroflotation and grouting ensures that the soil body is easier to be filled with slurry in the vibration process, accelerates the diffusion of the slurry in the soil body pores, shortens the construction time, improves the construction efficiency and reduces the engineering cost. Preferably, the foundation treatment device combining grouting and vibroflotation further comprises a monitoring module, wherein the monitoring module comprises a pulse generator, an ultrasonic sensor and an oscilloscope, the pulse generator is arranged on the vibration excitation body, the ultrasonic sensor and the oscilloscope are arranged outside the device, and ultrasonic signals of the pulse generator are collected through the ultrasonic sensor and converted into electric signals to be fed back to the oscilloscope. The ultrasonic signal is sent out through the pulse generator, the ultrasonic sensor collects signals and feeds back the signals to the oscilloscope, real-time monitoring of the foundation reinforcement process is achieved, operators can know grouting effects and soil reinforcement conditions in real time, potential problems are found in time, excessive grouting or insufficient grouting is avoided, and construction quality is guaranteed. According to the monitoring data, operators can accurately adjust construction parameters such as grouting pressure, vibration frequency and the like, so that the fine control of the reinforcement process is realized, the uniformity and reliability of reinforcement are improved, an