CN212223929U - Flushing and sucking device for non-drainage sinking construction process of open caisson - Google Patents
Flushing and sucking device for non-drainage sinking construction process of open caisson Download PDFInfo
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- CN212223929U CN212223929U CN202020748493.8U CN202020748493U CN212223929U CN 212223929 U CN212223929 U CN 212223929U CN 202020748493 U CN202020748493 U CN 202020748493U CN 212223929 U CN212223929 U CN 212223929U
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Abstract
The utility model relates to a dash and inhale device that is used for open caisson not drainage to sink construction technology, including cutter-suction type suction dredge, the both ends of cutter-suction type suction dredge respectively are equipped with high-pressure water pipe all the way, the direction of high-pressure water pipe front end is the same with the direction of cutter-suction type suction dredge aircraft nose. The utility model discloses a reequip ordinary cutter suction type suction dredge, increase two way high pressure water pipes in the suction mud equipment both sides, make the open caisson not discharge water and sink the work progress can be cut and suction the silt below the equipment through the reamer of cutter suction type suction dredge, can be through the two way high pressure water that the repacking jetted of high pressure water pipe again, to cutter suction dredge all around cutting, realize the soil of open caisson sword foot, cross beam bottom, sand cutting, and improve ordinary cutter suction dredge operating mode condition, do benefit to the open caisson and sink the efficiency of construction; the modified cutter suction type suction dredge is particularly suitable for deep wells adopting a non-drainage sinking construction process and sand-layer sinking wells, and meanwhile, the equipment is also suitable for various foundation pit dredging projects.
Description
Technical Field
The utility model relates to an open caisson engineering does not discharge water and sinks construction technical field, especially a dash and inhale device that is used for open caisson not discharge water and sinks construction.
Background
The open caisson is a well cylindrical structure, and is a foundation for bridge abutment or other structures by digging soil in the well, overcoming the frictional resistance of the well wall by means of the self gravity, sinking to a designed elevation, sealing the bottom by concrete and filling the well hole. The device is generally used for constructing a retaining device in foundation pits of large-scale piers, sewage pump stations, large-scale equipment foundations, civil air defense shelters, shield assembly wells, underground driveways and station hydraulic foundations.
In recent years, along with the high-speed development of underground comprehensive pipe galleries such as a jacking pipe and a shield and large-scale pump stations, the open caisson is increasingly applied to the construction of urban municipal engineering as a jacking pipe, a shield construction working well, a receiving well, a pump station main body or a maintenance structure. Based on the complex urban construction environment, the strict settlement control of surrounding building structures, roads and comprehensive pipelines is realized, the sinking construction of the open caisson is generally carried out by adopting a non-drainage sinking process, and the potential risks such as piping phenomena such as sand gushing, mud gushing and the like, ground settlement, displacement of deep soil around the open caisson and the like which are possibly generated in the sinking process of the open caisson are prevented and controlled through the balance of water pressure in and out of the open caisson, so that the safety and reliability of the urban construction are improved.
The sinking method without drainage is generally divided into taking soil in water by a grab bucket; washing the soil by a hydraulic flushing device; sucking soil by an air suction dredger; and (4) sucking soil in water by using a suction dredger in water. The underwater mud suction machine has the advantages of large mud suction flow, high efficiency, low equipment failure rate, convenience in controlling the water level in the well and the like, and is frequently used in the construction of sinking of the open caisson without water drainage. However, most of domestic underwater suction dredge is a dredge machine with a reamer arranged at the bottom or the side part, the cutting capability range of soil and sand is limited, the dredge machine cannot extend to the lower part of an open caisson cutting edge and a shaft bottom cross beam, the soil and the sand are completely cut and pumped, and accidents such as stopping sinking, deflection sinking and the like in the open caisson sinking process are easily caused. In order to prevent accidents such as stopping sinking, deflection sinking and the like in the sinking process of the open caisson, the existing underwater suction dredge is required to be modified to be suitable for the technological conditions of the open caisson for sinking without draining water, so that the effect of evacuating the soil below the edge foot of the open caisson and the cross beam at the bottom of the open caisson is achieved, and the open caisson is uniformly sunk.
Disclosure of Invention
The utility model aims at solving the defects existing in the prior art and providing a flushing and sucking device for the sinking construction process without water drainage of an open caisson.
The flushing and sucking device for the non-drainage sinking construction process of the open caisson comprises a cutter suction type suction dredge, wherein two ends of the cutter suction type suction dredge are respectively provided with a high-pressure water pipe, and the direction of the front end of each high-pressure water pipe is the same as that of the head of the cutter suction dredge.
A rotating shaft is arranged in the cutter suction type suction dredge, a drill bit is arranged at the lower end of the rotating shaft, and reamers are arranged at two ends of the drill bit.
The gun head is arranged at the front end of the high-pressure water pipe, and the tail end of the high-pressure water pipe is connected with the water spraying device.
And the upper end of the cutter suction type suction dredge is provided with a mud pump, and the mud pump is connected with a mud discharge pipe.
The high-pressure water pipe is rotatably connected with the cutter suction type suction dredge.
And a rotating wheel for uniformly stirring soil is arranged in the body of the cutter suction type suction dredge.
An ultrasonic vibrator is arranged in the cutter suction type suction dredge.
The bottom of the cutter suction type suction dredge machine body is also provided with a filter screen.
And mud suction branch pipes are arranged on two sides of the lower end of the cutter suction type mud suction machine.
And support frames are arranged at two ends of the bottom of the cutter suction type sludge suction machine.
The utility model has the advantages that: 1) the device is suitable for the construction of sinking without draining water of the open caisson with strict peripheral settlement control and higher ground water level; 2) through construction site practice, the water level difference between the inner part and the outer part of the open caisson can be effectively controlled when the open caisson is not drained, the edge feet of the open caisson and the soil body at the lower part of the cross beam are effectively cut, and uniform sinking of the open caisson is realized; 3) through the high-pressure squirt that the outside set up, can clear up the peripheral soil body of open caisson, improved the practicality.
Drawings
FIG. 1 is a real view of the flushing and sucking device of the sinking construction process without water drainage of the open caisson of the utility model;
fig. 2 is a cross-sectional view of the flushing and sucking device of the sinking construction process without water drainage of the open caisson of the utility model.
Reference numbers of the components: 1. the cutter suction type dredge comprises a cutter suction type dredge, 2-1 parts of a first high-pressure water pipe, 2-2 parts of a second high-pressure water pipe, 3 parts of a rotating shaft, 4 parts of a drill bit, 5-1 parts of a first reamer, 5-2 parts of a second reamer, 6-1 parts of a first gun head, 6-2 parts of a second gun head, 7-1 parts of a first water spraying device, 7-2 parts of a second water spraying device, 8 parts of a rotating wheel, 9 parts of an ultrasonic vibrator, 10 parts of a mud pump, 11 parts of a mud discharging pipe, 12 parts of a filter screen cover, 13 parts of a mud suction branch pipe and 14 parts of a support frame.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention and the technical solutions in the prior art, the following description will explain specific embodiments of the present invention with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and for a person skilled in the art, other drawings and other embodiments can be obtained without inventive effort, and the invention is not limited to this example.
The flushing and sucking device for the non-drainage sinking construction process of the open caisson comprises a cutter suction type suction dredge 1, wherein a first high-pressure water pipe 2-1 and a second high-pressure water pipe 2-2 are respectively arranged at two ends of the cutter suction type suction dredge 1, and the directions of the front ends of the first high-pressure water pipe 2-1 and the second high-pressure water pipe 2-2 are the same as the direction of a machine head of the cutter suction type suction dredge 1.
A rotating shaft 3 is arranged in the cutter suction type suction dredge 1, a drill bit 4 is arranged at the lower end of the rotating shaft 3, and a first reamer 5-1 and a second reamer 5-2 are arranged at two ends of the drill bit 4; the front end of the first high-pressure water pipe 2-1 is provided with a first gun head 6-1, the front end of the second high-pressure water pipe 2-2 is provided with a second gun head 6-2, the tail end of the first high-pressure water pipe 2-1 is connected with a first water spraying device 7-1, the tail end of the second high-pressure water pipe 2-2 is connected with a second water spraying device 7-2, and the first high-pressure water pipe 2-1 and the second high-pressure water pipe 2-2 are rotatably connected with a cutter suction type dredge 1.
A rotating wheel 8 for uniformly stirring soil is arranged in the body of the cutter suction type dredge 1, and an ultrasonic vibrator 9 is arranged in the cutter suction type dredge 1; the upper end of the cutter suction type suction dredge 1 is provided with a mud pump 10, and the mud pump 10 is connected with a mud discharge pipe 11; the bottom of the body of the cutter suction dredger 1 is also provided with a filter screen 12, the two sides of the lower end of the cutter suction dredger 1 are provided with sludge suction branch pipes 13, and the two ends of the bottom of the cutter suction dredger 1 are provided with support frames 14.
The working principle of the utility model is as follows:
a dash and inhale device that is used for open caisson not drainage to sink construction technology, reequip current bottom reamer formula aquatic suction dredge in the market, pass through the welding form in machinery both sides, weld two high-pressure squirts and with two supporting high pressure water piping connection for carry out the water under high pressure to the unable cutting scope soil body of cutting of suction dredge reamer under water and wash the cutting, reach open caisson sword foot and the unsettled effect in shaft bottom cross beam below, realize that the open caisson evenly sinks.
High-pressure water flow is sent into the high-pressure water gun through the additionally arranged high-pressure water pipe through the high-pressure water pump, and the high-pressure water flow jetted by the high-pressure water gun is utilized to scour the soil layer, so that slurry with a certain consistency is formed. The mud is sucked out by a suction dredge and is discharged out of the well from a mud pipe. Meanwhile, the high-pressure water gun nozzle direction is rotated to adjust the water jetting direction of the high-pressure water flow, the open caisson cutting edge and the soil sand below the cross beam are washed, the open caisson is in a suspended state, the high-pressure water gun is made of DN65 steel pipe materials, the high-pressure water gun is welded with the suction dredge, and the direction of the high-pressure water gun is consistent with the direction of the machine body.
According to the sinking depth of the open caisson, a soft high-pressure water supply pipe with the corresponding length meeting the requirement is configured and connected with a ground centrifugal high-pressure water pump. The soft high-pressure water supply pipe is connected with a hydraulic suction dredger and is suitable for silty clay, silt and fine sandy soil. The high pressure water is used without the limit of water depth, but the soil-discharging efficiency is improved along with the increase of water pressure and water quantity, and water is injected into the sinking well to increase the water level in the well if necessary. When the hydraulic suction dredge is used in silt or floating soil, the water level in the sinking well is kept 1-2 m higher than the water level outside the sinking well.
In the sinking construction process, the direction of water spraying is controlled by adjusting the gun head, and the omnibearing cutting of the soil body at the bottom of the edge foot of the open caisson is realized. The soil punching sequence is that the center is firstly followed by the periphery, a soil platform is reserved along the edge foot, and finally the soil is symmetrically dug in layers. The open caisson is uniformly stressed as much as possible, and a soil layer below the blade tread cannot be punched. When the cohesive soil is flushed, the nozzle is preferably made to flush the vertical surface at an angle close to 90 degrees, and the bottom of the vertical surface is flushed into a gap so that the vertical surface is collapsed. During construction, a high-pressure water gun is used for flushing the bottom of a well, and the amount of the produced mud and the amount of the permeated water are balanced with the amount of the mud sucked by the hydraulic suction dredge.
Specific embodiments of the present invention have been described above in detail. It should be understood that numerous modifications and variations can be devised by those skilled in the art in light of the teachings of the present invention without undue experimentation. Therefore, the technical solutions available to those skilled in the art through logical analysis, reasoning, or limited experiments in the prior art with the concepts of the present invention should be within the scope of the present claims.
Claims (10)
1. The flushing and sucking device for the non-drainage sinking construction process of the open caisson is characterized by comprising a cutter suction type suction dredge, wherein two ends of the cutter suction type suction dredge are respectively provided with a high-pressure water pipe, and the direction of the front end of each high-pressure water pipe is the same as that of the head of the cutter suction dredge.
2. The flushing and sucking device for the non-drainage sinking construction process of the open caisson according to claim 1, wherein a rotating shaft is arranged in the cutter suction type suction dredge, a drill bit is arranged at the lower end of the rotating shaft, and reamers are arranged at two ends of the drill bit.
3. The flushing and sucking device for the non-drainage sinking construction process of the open caisson according to claim 1, wherein a gun head is arranged at the front end of the high-pressure water pipe, and the tail end of the high-pressure water pipe is connected with a water spraying device.
4. The flushing and sucking device for the open caisson non-drainage sinking construction process as claimed in claim 1, wherein the upper end of the cutter suction type suction dredge is provided with a mud pump, and the mud pump is connected with a mud discharge pipe.
5. The flushing and sucking device for the open caisson non-drainage sinking construction process according to claim 1, wherein the flushing and sucking device comprises: the high-pressure water pipe is rotatably connected with the cutter suction type suction dredge.
6. The flushing and sucking device for the open caisson non-drainage sinking construction process according to claim 1, wherein the flushing and sucking device comprises: and a rotating wheel for uniformly stirring soil is arranged in the machine body of the cutter suction type suction dredge.
7. The flushing and sucking device for the open caisson non-drainage sinking construction process according to claim 1, wherein the flushing and sucking device comprises: an ultrasonic vibrator is arranged in the cutter suction type suction dredge.
8. The flushing and sucking device for the open caisson non-drainage sinking construction process according to claim 1, wherein the flushing and sucking device comprises: the bottom of the cutter suction type suction dredge machine body is also provided with a filter screen.
9. The flushing and sucking device for the open caisson non-drainage sinking construction process according to claim 1, wherein the flushing and sucking device comprises: and mud suction branch pipes are arranged on two sides of the lower end of the cutter suction type mud suction machine.
10. The flushing and sucking device for the open caisson non-drainage sinking construction process according to claim 1, wherein the flushing and sucking device comprises: and two ends of the bottom of the cutter suction type suction dredge are also provided with supporting frames.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020748493.8U CN212223929U (en) | 2020-05-09 | 2020-05-09 | Flushing and sucking device for non-drainage sinking construction process of open caisson |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020748493.8U CN212223929U (en) | 2020-05-09 | 2020-05-09 | Flushing and sucking device for non-drainage sinking construction process of open caisson |
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| CN212223929U true CN212223929U (en) | 2020-12-25 |
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| CN202020748493.8U Active CN212223929U (en) | 2020-05-09 | 2020-05-09 | Flushing and sucking device for non-drainage sinking construction process of open caisson |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235632A (en) * | 2021-04-14 | 2021-08-10 | 中铁二十四局集团有限公司 | Open caisson sinking device capable of automatically correcting deviation in real time and construction method |
| CN113494097A (en) * | 2021-06-18 | 2021-10-12 | 黄河建工集团有限公司 | Sand pumping and drainage equipment and method for open caisson construction of quicksand layer and clay layer |
| CN113846664A (en) * | 2021-08-05 | 2021-12-28 | 上海市基础工程集团有限公司 | Continuous soil-taking and sinking machine for non-drainage open caisson |
| CN114561968A (en) * | 2022-01-27 | 2022-05-31 | 中铁十八局集团有限公司 | Intelligent water-jetting mud-absorbing equipment for assisting double-wall steel cofferdam bottom sinking |
| CN114737591A (en) * | 2022-04-12 | 2022-07-12 | 交通运输部上海打捞局 | Cutter-suction type end plate auxiliary sinking system suitable for box-type end plate |
| WO2024119331A1 (en) * | 2022-12-05 | 2024-06-13 | 浙大城市学院 | Bucket foundation with resistance reduction system, and cutter suction penetration installation method |
-
2020
- 2020-05-09 CN CN202020748493.8U patent/CN212223929U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113235632A (en) * | 2021-04-14 | 2021-08-10 | 中铁二十四局集团有限公司 | Open caisson sinking device capable of automatically correcting deviation in real time and construction method |
| CN113235632B (en) * | 2021-04-14 | 2022-07-08 | 中铁二十四局集团有限公司 | Open caisson sinking device capable of automatically correcting deviation in real time and construction method |
| CN113494097A (en) * | 2021-06-18 | 2021-10-12 | 黄河建工集团有限公司 | Sand pumping and drainage equipment and method for open caisson construction of quicksand layer and clay layer |
| CN113494097B (en) * | 2021-06-18 | 2023-09-29 | 黄河建工集团有限公司 | Sand pumping and draining equipment and method for open caisson construction of quicksand layer and clay layer |
| CN113846664A (en) * | 2021-08-05 | 2021-12-28 | 上海市基础工程集团有限公司 | Continuous soil-taking and sinking machine for non-drainage open caisson |
| CN113846664B (en) * | 2021-08-05 | 2023-03-10 | 上海市基础工程集团有限公司 | Continuous soil-taking and sinking machine for non-drainage open caisson |
| CN114561968A (en) * | 2022-01-27 | 2022-05-31 | 中铁十八局集团有限公司 | Intelligent water-jetting mud-absorbing equipment for assisting double-wall steel cofferdam bottom sinking |
| CN114737591A (en) * | 2022-04-12 | 2022-07-12 | 交通运输部上海打捞局 | Cutter-suction type end plate auxiliary sinking system suitable for box-type end plate |
| WO2024119331A1 (en) * | 2022-12-05 | 2024-06-13 | 浙大城市学院 | Bucket foundation with resistance reduction system, and cutter suction penetration installation method |
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