CN100570125C - Horizontal rotary spray composite pipe pressure-reducing mud discharging device - Google Patents
Horizontal rotary spray composite pipe pressure-reducing mud discharging device Download PDFInfo
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- CN100570125C CN100570125C CNB2006101477545A CN200610147754A CN100570125C CN 100570125 C CN100570125 C CN 100570125C CN B2006101477545 A CNB2006101477545 A CN B2006101477545A CN 200610147754 A CN200610147754 A CN 200610147754A CN 100570125 C CN100570125 C CN 100570125C
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Abstract
The invention discloses a kind of horizontal rotary spray composite pipe pressure-reducing mud discharging device, comprise the mortar outlet pipe, high-pressure water pipe, mortar outlet pipe stock inlet is provided with the high pressure vacuum storehouse, have useless slurry stock inlet below the high pressure vacuum storehouse, be provided with a high pressure nozzle with the corresponding high pressure vacuum of mortar outlet pipe stock inlet storehouse front end, high pressure nozzle is connected with high-pressure water pipe by bend pipe.High-pressure water pipe is utilized towards the mud superfluous water and is refluxed, and forms the moment vacuum by the speed that changes current in the high pressure vacuum storehouse, mud is introduced the mortar outlet pipe discharge.The present invention adopts on the mortar outlet pipe stock inlet high pressure vacuum storehouse is set, and high pressure vacuum storehouse front end is provided with the high pressure nozzle that is connected with high-pressure water pipe.Force outside the tap by the pull of vacuum of the water under high pressure slurry that will give up, the influence of can reducing greatly to construct to surrounding environment, and can be by regulating the useless slurry of water under high pressure pressure and flow-control discharge rate, and further control ground settlement or lifting.
Description
Technical field
The present invention relates to the clad pipe horizontal jet grouting equipment of use in the construction of a kind of underground building, the mud discharging device in especially a kind of horizontal jet grouting equipment.
Background technology
At present, in the city tunnel construction, according to the churning method that operating condition in requirement of in the city tunnel engineering excavation face being reinforced and the tunnel is developed, use in the existing engineering of the eighties in Europe.In the city underground engineering, also existing many successful application, be pre-formed arch horizontal rotary jet strengthening for the excavation by-pass at pilot tunnel as the Milan, ITA subway, in Naples light rail is built, when the tunnel passed the basis, building, the arch horizontal jet grouting stake that forms generation insertion steel pipe in the tunnel front in advance added solid.
The comprehensive MJS worker's method of Japan's exploitation comes into one's own owing to significantly reduce ground deformation in the city tunnel construction.MJS worker's method be the early 1990s Japan begin to develop, began test in 1991, in November, 1992, Japan set up MJS worker law society, in implementing in tunnel, ground, line projects such as Tokyo, Yokohama in the period of the 1991-1993.
It is maximum that China uses is single pipe method.Single pipe method adopts playpipe to creep into, and playpipe and hole wall fluid-tight engagement do not have the plasma discharge gap, and single pipe method only adopts a kind of ejection medium of cement paste, and slurries are thicker, outside the very difficult tap of useless slurry.Therefore the useless slurry that produces of single pipe method seldom, most of useless slurry is pressed under higher hole internal pressure on every side in the soil layer space.Therefore, can be easy to cause surface uplift, ground settlement to the bigger influences of generation such as ground level road, building, underground utilities on every side in the single pipe method horizontal jet grouting work progress.Though single pipe method plasma discharge difficulty, when being sprayed onto apart from nearer position, aperture, plasma discharge becomes easily, has a large amount of mud (slurries that comprise stabilization zone) as not taking measures and flows out the aperture, causes empty in the hole in.So that the mud that cement paste cements out in the churning process is difficult to outside the tap, can't reach effective reinforcing ground settlement or lifting, and effectively reduces surrounding enviroment are impacted.
Summary of the invention
The technical problem to be solved in the present invention provides the composite pipe pressure-reducing mud discharging device in a kind of horizontal jet grouting, and the mud that this device can cement out cement paste is in time discharged, and reaching effective reinforcing and effectively reducing influences surrounding enviroment.
For solving the problems of the technologies described above, the technical solution used in the present invention is as follows:
A kind of horizontal rotary spray composite pipe pressure-reducing mud discharging device, comprise the mortar outlet pipe, high-pressure water pipe, mortar outlet pipe stock inlet is provided with the high pressure vacuum storehouse, have useless slurry stock inlet below the high pressure vacuum storehouse, be provided with a high pressure nozzle with the corresponding high pressure vacuum of mortar outlet pipe stock inlet storehouse front end, high pressure nozzle is connected with high-pressure water pipe by bend pipe.
High-pressure water pipe is utilized towards the mud superfluous water and is refluxed, and forms the moment vacuum by the speed that changes current in the high pressure vacuum storehouse, mud is introduced the mortar outlet pipe discharge.
The flow of high-pressure water pipe mesohigh clear water: 60-70L/Min, pressure: 20-30Mpa.
The present invention adopts on the mortar outlet pipe stock inlet high pressure vacuum storehouse is set, and high pressure vacuum storehouse front end is provided with the high pressure nozzle that is connected with high-pressure water pipe.Force outside the tap by the pull of vacuum of the water under high pressure slurry that will give up, the influence of can reducing greatly to construct to surrounding environment, and can be by regulating the useless slurry of water under high pressure pressure and flow-control discharge rate, and further control ground settlement or lifting.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the mobile approach schematic diagram of horizontal rotary spray composite pipe mesohigh water;
Fig. 3 is a horizontal rotary spray composite pipe mesohigh mortar stream approach schematic diagram;
Fig. 4 is a compressed air flow path schematic diagram in the horizontal rotary spray composite pipe.
The specific embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment.
As shown in Figure 1, horizontal rotary spray composite pipe pressure-reducing mud discharging device of the present invention comprises mortar outlet pipe 5, high-pressure water pipe 1.
Mortar outlet pipe 5 stock inlets are provided with high pressure vacuum storehouse 3, have useless slurry stock inlet 4 below the high pressure vacuum storehouse 3, be provided with a high pressure nozzle 2 with the corresponding high pressure vacuum of mortar outlet pipe 5 stock inlets storehouse 3 front ends, high pressure nozzle 2 is connected with high-pressure water pipe 1 by bend pipe.
High-pressure water pipe 1 is utilized towards the mud superfluous water and is refluxed, and forms the moment vacuum by the speed that changes current high pressure vacuum storehouse 3 in, and mud is introduced behind the mortar outlet pipe from grout outlet 6 discharges.
Combined type special-purpose ejecting tubular structure characteristics of the present invention:
Drilling rod four-way parallel-connection structure, every drilling rod is with being threaded.
The water under high pressure passage (see figure 2) that flows.Water under high pressure pipe from air deflector enters, and the bottom oppositely sprays through water nozzle 2 along high-pressure water pipe 1 to drill bit.
High pressure mortar flow channel (see figure 3).High pressure mortar pipe in the air deflector enters, and the bottom is through mortar nozzle 8 ejection cutting soils along high pressure mortar passage 7 to drill bit.
Compressed air flow channel (see figure 4).Compressed air enters from the air deflector outer tube, and the bottom sprays through valve along compressed air channel 9 to drill bit.
The operating principle of horizontal rotary spray composite pipe of the present invention:
Horizontal rotary spray composite pipe is to establish the acting in conjunction of four combined type pipelines in the horizontal jet pipe to fulfil assignment.Wherein one is the hardened material nozzle, and one is compressed-air atomizer, and one is hydraulic spray, and one is outlet pipe.
When the horizontal jet grouting operation, hardened material and compressed air are respectively from hardened material and the ejection of compressed air hose nozzle, and this moment, drilling rod was made 180 ° of pendulum spray cutting soil bodys.Meanwhile, hydraulic spray is intake simultaneously, and refluxes at a high speed, with in outlet pipe interruption-forming vacuum, thereby the mud that cement paste cements out is discharged from outlet pipe.
Combined type special-purpose ejecting pipe is by air deflector, drilling rod, and several parts such as shower nozzle and drill bit are formed.The horizontal jet grouting ejection medium has three kinds:
A, high pressure mortar: flow: 80-100L/Min, pressure: 35-40Mpa
B, high pressure clear water: flow: 60-70L/Min, pressure: 20-30Mpa
C, compress empty vapour: flow: 6-9 cube/h, pressure: 0.7Mpa
Clad pipe method horizontal jet grouting adopts forces plasma discharge technology, and promptly the pull of vacuum by water under high pressure is forced to outside the tap.The influence that can reduce greatly to construct of this technology to surrounding environment, and can be by regulating the useless slurry of water under high pressure pressure and flow-control discharge rate, and further control ground settlement or lifting.
After useless slurry drains into pulp storage tank, stack zone (also can directly drain into heap slurry district during close together) by slush pump secondary emission to predetermined mud.Because the useless slurry of discharging contains part cement, can appear on the scene with the form outward transport of the earthwork after solidifying.The aperture of shutoff in time after clad pipe method horizontal jet grouting pile driving construction is finished, pre-buried Grouting Pipe, and treat to carry out slip casting after sealing of hole thes cement solidifies, guarantee can also not show the space in the stabilization zone.
The engineer testing that the present invention carries out according to different operating modes and parameter has successfully solved the technology that churning mud forces to return out ground, and parameters all meets the requirements.Through the excavation check, expanded diameter 1.0～1.3m, intensity reaches 8.0MPa.
Claims (2)
1. horizontal rotary spray composite pipe pressure-reducing mud discharging device, comprise mortar outlet pipe (5), high-pressure water pipe (1), it is characterized in that, described mortar outlet pipe (5) stock inlet is provided with high pressure vacuum storehouse (3), have useless slurry stock inlet (4) below the high pressure vacuum storehouse (3), be provided with a high pressure nozzle (2) with mortar outlet pipe (5) stock inlet corresponding high pressure vacuum storehouse (3) front end, high pressure nozzle (2) is connected with high-pressure water pipe (1) by bend pipe, described high-pressure water pipe (1) utilization is refluxed towards the mud superfluous water, in high pressure vacuum storehouse (3), form the moment vacuum by the speed that changes current, mud is introduced mortar outlet pipe (5) discharge.
2. horizontal rotary spray composite pipe pressure-reducing mud discharging device according to claim 1 is characterized in that, the high pressure clear water flow in the high-pressure water pipe (1) is: 60-70L/Min, pressure is: 20-30Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101477545A CN100570125C (en) | 2006-12-22 | 2006-12-22 | Horizontal rotary spray composite pipe pressure-reducing mud discharging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101477545A CN100570125C (en) | 2006-12-22 | 2006-12-22 | Horizontal rotary spray composite pipe pressure-reducing mud discharging device |
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| Publication Number | Publication Date |
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| CN1987047A CN1987047A (en) | 2007-06-27 |
| CN100570125C true CN100570125C (en) | 2009-12-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101477545A Active CN100570125C (en) | 2006-12-22 | 2006-12-22 | Horizontal rotary spray composite pipe pressure-reducing mud discharging device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101245599B (en) * | 2008-02-28 | 2010-09-01 | 上海市第二市政工程有限公司 | Construction equipment for generating horizontal jet grouting reinforcing body by injecting double-liquid liquid with high-pressure |
| CN101230573B (en) * | 2008-02-28 | 2010-06-02 | 上海市第二市政工程有限公司 | Construction equipment for four-layer pipe ground layer depression type double-liquid horizontal jet grouting |
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2006
- 2006-12-22 CN CNB2006101477545A patent/CN100570125C/en active Active
Non-Patent Citations (3)
| Title |
|---|
| 国际岩土锚固与灌浆新进展. 熊厚发，285-290，中国建筑工业出版社. 1996 国际岩土锚固与灌浆新进展. 中国建筑工业出版社，285-290，熊厚发. 1996 |
| 国际岩土锚固与灌浆新进展. 中国建筑工业出版社，285-290，熊厚发. 1996 * |
| 国际岩土锚固与灌浆新进展. 熊厚发，285-290，中国建筑工业出版社. 1996 * |
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| CN1987047A (en) | 2007-06-27 |
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Owner name: SHANGHAI FOUNDATION ENGINEERING GROUP CO., LTD. Free format text: FORMER NAME: FOUNDATION ENGINEERING CO. OF SHANGHAI CITY |
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| CP01 | Change in the name or title of a patent holder |
Address after: 200002, room 406, 522 middle Jiangxi Road, Shanghai, Huangpu District Patentee after: Shanghai Foundation Engineering Group Co., Ltd. Address before: 200002, room 406, 522 middle Jiangxi Road, Shanghai, Huangpu District Patentee before: Foundation Engineering Co. of Shanghai City |