CN-121976537-A - Immersed tube structure convenient for stone breaking and discharging

CN121976537ACN 121976537 ACN121976537 ACN 121976537ACN-121976537-A

Abstract

The invention relates to a immersed tube structure convenient for crushed stone blanking, which comprises an immersed tube main body, a hammering cap, a connecting block, a valve and a tube diameter adjusting mechanism, wherein the tube diameter adjusting mechanism comprises a flexible sealing strip, a storage box, a control pump body, a pipeline, magnetorheological fluid, an electromagnet and a main control unit, when crushed stone is blanked into the immersed tube main body, the particle diameter and whether the crushed stone is wet sticky or not can be detected, when the crushed stone is small-size crushed stone or wet sticky crushed stone, the magnetorheological fluid in the storage box can be injected into an annular cavity through the control pump body, when the injection amount of the magnetorheological fluid is larger than the volume of the annular cavity, the flexible sealing strip can expand towards the inside of the immersed tube main body, the deformation amount of the flexible sealing strip can be controlled by controlling the injection amount of the magnetorheological fluid, after an electromagnet is started, the rigidity of the magnetorheological fluid can be changed, finally the flexible sealing strip can form a bulge in the immersed tube main body, the tube diameter inside the immersed tube main body is changed, the blanking of the small-size crushed stone and wet sticky crushed stone is suitable, and the blockage and the segregation of coarse and fine particles are avoided.

Inventors

LI YOUFA
Han xingye
CHEN SHANMAO
LUO XIAOLONG
YU JIANHUA
XIAO JUNWEN

Assignees

海南永顺建设工程有限公司

Dates

Publication Date: 20260505
Application Date: 20260203

Claims (10)

1. The immersed tube structure is characterized by comprising an immersed tube main body, a hammering cap, a connecting block, a valve and a tube diameter adjusting mechanism, wherein the hammering cap is arranged at the top end of the immersed tube main body, the connecting block is arranged on the outer wall of the top end of the immersed tube main body, the valve is arranged at the bottom end of the immersed tube main body, the tube diameter adjusting mechanism comprises a flexible sealing strip, a storage box, a control pump body, a pipeline, magnetorheological fluid, an electromagnet and a main control unit, an annular cavity is formed in the inner side wall of the immersed tube main body, the flexible sealing strip is arranged at the opening of the annular cavity, the storage box and the control pump body are arranged inside the tube wall of the immersed tube main body, the two ends of the control pump body are respectively connected with the storage box and the annular cavity through pipelines, the magnetorheological fluid is stored in the annular cavity and the storage box, the electromagnet is arranged inside the tube wall of the immersed tube main body and is located below the annular cavity, and the main control unit is respectively connected with the pump body and the electromagnet.
2. The immersed tube structure convenient for crushed stone blanking according to claim 1, wherein the connecting blocks are arranged on the outer wall of the immersed tube main body at intervals, and the outer side wall of the immersed tube main body is provided with a groove for clamping by a clamp.
3. The immersed tube structure convenient for crushed stone discharging according to claim 1, wherein the valve comprises an annular base, a fan-shaped valve piece and a torsion spring, the annular base is arranged at the bottom end of the immersed tube main body, a mounting groove is formed in the bottom surface of the annular base, the top end of the fan-shaped valve piece is located in the mounting groove and hinged with the mounting groove, the torsion spring is arranged at the hinged position of the fan-shaped valve piece and the mounting groove, and the bottom ends of the fan-shaped valve pieces are mutually abutted.
4. A immersed tube structure for facilitating crushed stone blanking according to claim 3, wherein the valve further comprises a counterweight provided on an outer side wall of the sector-shaped valve.
5. The immersed tube structure for facilitating crushed stone blanking according to claim 1, wherein the tube diameter adjusting mechanism further comprises a magnetic isolation plate, and the magnetic isolation plate is arranged inside the tube wall of the immersed tube main body and is located below the electromagnet.
6. The immersed tube structure convenient for crushed stone blanking according to claim 1, wherein the tube diameter adjusting mechanism further comprises a crushed stone detecting mechanism, the crushed stone detecting mechanism comprises a light-transmitting plate, a laser transmitter and a laser receiver, the inner side wall of the immersed tube main body is symmetrically provided with a detecting cavity, the light-transmitting plate is arranged at an opening of the detecting cavity, the laser transmitter and the laser receiver are oppositely arranged in different detecting cavities, and the main control unit is respectively electrically connected with the laser transmitter and the laser receiver.
7. The immersed tube structure convenient for crushed stone blanking according to claim 6, wherein the crushed stone detecting mechanism further comprises a rotating motor, a first electric push rod, a bearing plate and a cleaning sponge, the rotating motor is arranged inside the tube wall of the immersed tube main body, an output shaft of the rotating motor is connected with the bottom surface of the light-transmitting plate, the top of the light-transmitting plate is rotationally connected with the top surface of the detecting cavity, a lower containing groove is formed in the bottom surface of the detecting cavity, the first electric push rod is arranged in the lower containing groove, the output shaft of the first electric push rod is connected with the bottom surface of the bearing plate, the cleaning sponge is arranged on the side wall of the bearing plate, the light-transmitting plate is located on the lifting path of the cleaning sponge, and the main control unit is electrically connected with the rotating motor and the first electric push rod.
8. The immersed tube structure for facilitating crushed stone blanking according to claim 7, wherein the crushed stone detecting mechanism further comprises a bearing and a rotating shaft, the bearing is embedded in the inner top surface of the detecting cavity, and the rotating shaft is arranged on the top surface of the light-transmitting plate and is connected with the bearing.
9. The immersed tube structure convenient for crushed stone blanking according to claim 6, wherein the crushed stone detecting mechanism further comprises an electric sliding table, a second electric push rod, a lifting plate, a tension sensor, a tension spring and a contact plate, the inner top surface of the detecting cavity is provided with an upper storage groove, the electric sliding table is arranged in the upper storage groove, the second electric push rod is arranged on the bottom surface of a rotor of the electric sliding table, an output shaft of the second electric push rod is connected with the top surface of the lifting plate, the tension sensor is arranged on the bottom surface of the lifting plate, the contact plate is positioned below the tension sensor, the tension spring is connected with the tension sensor and the contact plate, and the main control unit is respectively electrically connected with the electric sliding table, the second electric push rod and the tension sensor.
10. The immersed tube structure convenient for crushed stone discharging according to claim 9, wherein the crushed stone detecting mechanism further comprises a sleeve and a limiting rod, the sleeve is arranged on the bottom surface of the lifting plate, the tension sensor and the tension spring are located in the sleeve, the bottom end of the limiting rod is connected with the top surface of the contact plate, and the top end of the limiting rod stretches into the sleeve to be connected with the tension spring.

Description

Immersed tube structure convenient for stone breaking and discharging Technical Field The invention relates to the technical field of foundation construction, in particular to a immersed tube structure convenient for broken stone blanking. Background The vibrating immersed tube gravel pile is a common technology for treating soft soil foundation and sandy soil foundation, and has the basic principle that a hollow immersed tube is driven into underground by high-frequency vibration generated by a vibrator to compact surrounding soil, granular materials such as gravels are then thrown into the immersed tube, the immersed tube is vibrated while the immersed tube is slowly pulled up, gravels in the tube are compacted by utilizing vibration energy to form a compact sandy stone pile body, and after multiple blanking-compaction-tube pulling cycles, a plurality of sandy piles are arranged according to the designed interval and form a composite foundation together with the compacted soil among piles, so that the engineering targets of improving the bearing capacity of the foundation and preventing sandy soil liquefaction are realized. The existing immersed tube structure has obvious defects in the gravel blanking link, the blanking channels are mainly designed in a fixed section, the function of dynamically adjusting the pipe diameter is not achieved, different working condition requirements in construction cannot be adapted, on one hand, when small-particle-size gravel is faced, the fixed wide channels easily cause the gravel to fall down too fast in flow speed, coarse and fine particle segregation is caused, the compactness uniformity of a pile body is affected, on the other hand, the wet sticky gravel is aimed at, the gravel in the wide channels easily forms caking due to surface moisture, channel blockage is caused, frequent shutdown cleaning is needed, and construction efficiency and pile forming quality are seriously reduced. Disclosure of Invention In view of the above, the invention provides a immersed tube structure which is convenient for crushed stone blanking, and the tube diameter can be adjusted to meet the requirements of different working conditions, so that the piling quality is ensured. The technical scheme of the invention is realized as follows: The immersed tube structure comprises an immersed tube main body, a hammering cap, a connecting block, a valve and a tube diameter adjusting mechanism, wherein the hammering cap is arranged at the top end of the immersed tube main body, the connecting block is arranged on the outer wall of the top end of the immersed tube main body, the valve is arranged at the bottom end of the immersed tube main body, the tube diameter adjusting mechanism comprises a flexible sealing strip, a storage box, a control pump body, a pipeline, magnetorheological fluid, an electromagnet and a main control unit, an annular cavity is formed in the inner side wall of the immersed tube main body, the flexible sealing strip is arranged at the opening of the annular cavity, the storage box and the control pump body are arranged inside the tube wall of the immersed tube main body, the two ends of the control pump body are respectively connected with the storage box and the annular cavity through pipelines, the magnetorheological fluid is stored in the annular cavity and the storage box, the electromagnet is arranged inside the tube wall of the immersed tube main body and is located below the annular cavity, and the main control unit is arranged inside the side wall of the immersed tube main body and is respectively connected with the control pump body and the electromagnet. Preferably, the connecting blocks are arranged on the outer wall of the immersed tube main body at intervals, and the outer side wall of the connecting blocks is provided with a groove for clamping by a clamp. Preferably, the valve comprises an annular base, a fan-shaped valve piece and a torsion spring, wherein the annular base is arranged at the bottom end of the immersed tube main body, a mounting groove is formed in the bottom surface of the annular base, the top end of the fan-shaped valve piece is positioned in the mounting groove and hinged to the mounting groove, the torsion spring is arranged at the hinged position of the fan-shaped valve piece and the mounting groove, and the bottom ends of the fan-shaped valve pieces are mutually abutted. Preferably, the valve further comprises a balancing weight, and the balancing weight is arranged on the outer side wall of the fan-shaped valve. Preferably, the pipe diameter adjusting mechanism further comprises a magnetic isolation plate, wherein the magnetic isolation plate is arranged inside the pipe wall of the immersed pipe main body and is positioned below the electromagnet. Preferably, the pipe diameter adjusting mechanism further comprises a broken stone detecting mechanism, the broken stone detecting mechanism comprises a light-transmitting plate, a laser tra