CN112695749A - Omnibearing high-pressure injection construction method - Google Patents
Omnibearing high-pressure injection construction method Download PDFInfo
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- CN112695749A CN112695749A CN202011561325.9A CN202011561325A CN112695749A CN 112695749 A CN112695749 A CN 112695749A CN 202011561325 A CN202011561325 A CN 202011561325A CN 112695749 A CN112695749 A CN 112695749A
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- pressure
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- cement
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- bull stick
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/34—Concrete or concrete-like piles cast in position ; Apparatus for making same
- E02D5/46—Concrete or concrete-like piles cast in position ; Apparatus for making same making in situ by forcing bonding agents into gravel fillings or the soil
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- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
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- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses an omnibearing high-pressure injection method, belonging to the technical field of high-pressure injection grouting, when in use, a main machine arranged on the ground is utilized to drive a rotating rod into the ground, parameters are adjusted, a cutting water pipe arranged on the rotating rod is utilized to inject high-pressure water flow, cutting the soil around the rotating rod, driving the rotating rod to rotate by the host machine to cut cavities with different sections, spraying high-pressure airflow at a sludge discharge port by using a spraying pipeline to form vacuum, sucking the cut soil and water into a sludge discharge pipe, the convenient discharge, the cement mouth of pipe on the rethread bull stick pours into cement into the cavity of cutting out into, utilizes the discharge amount of sensor control mud pipe to control underground pressure, guarantees the uniformity of consolidating the effect, also prevents that too big ground from having an influence of pressure, and discharged muddy water can be transported to suitable position, reduces the influence to the environment.
Description
Technical Field
The invention relates to the technical field of high-pressure injection grouting, in particular to an all-dimensional high-pressure injection construction method.
Background
Conventional high pressure jet grouting pile passes through the air-lift effect when using, and waste mud is discharged from ground through the peripheral clearance of bull stick, and reinforced degree of depth is no longer than 40m, and deep row's mud is difficult, and the depth of construction increases, and the air-lift effect weakens, and row's mud is difficult, leads to injection efficiency to descend, and is great to the influence of surrounding environment.
Disclosure of Invention
The embodiment of the invention provides an all-dimensional high-pressure jet construction method, which aims to solve the technical problems that in the prior art, when a high-pressure jet grouting pile is used, the limitation is large, the adverse effect on the surrounding environment is generated, and the reinforcing effect is poor.
An omnibearing high-pressure jet construction method is characterized by comprising the following steps:
s1 pilot hole: firstly, an anchoring rotating rod is adopted and matched with an expanding head rotating head, and the diameter of a lead hole is 300-250 mm.
S2 placement host: after the rotating rod is anchored, the surrounding field is leveled and cleaned, the groove with the groove is 1.2 meters wide and 0.5 meter deep, the length can be controlled on site, a cement filling device is arranged in the groove to form a platform, the host is horizontally arranged and the hole alignment is well adjusted, the rotating rod is placed to the designated depth, relevant parameters are set, and the guniting is promoted.
S3 sets parameters: the parameters of the cement pipeline, the injection pipeline and the cutting water pipeline are well set, the cement mixing amount is not less than 40%, the cement mixing amount per cubic meter is not less than 720kg, the cement slurry pressure is as follows: 40Mpa, cement slurry flow 160L/Min, back suction pressure: 0-20Mpa, reverse water flow: 0-60L, and the pressure of the hole cutting water: 10-30Mpa, hole cutting water flow: 0-60L, and the step stroke and step time are changed by adjusting the pressure of cement paste, the pressure of hole cutting water and the grouting amount, so as to control the diameter of the pile.
S4 grouting: be provided with the cement pipeline in the bull stick, pour into the hole groove that cuts out with cement through the cement pipeline and fill up to progressively lift the bull stick through the host computer, lay the cement height of suitable height.
S5 adjustment: the rotating rod of the device is provided with a sludge discharge pipeline, the size of the sludge discharge valve can be freely controlled, and the sludge can be smoothly discharged through adjusting the size of the sludge discharge valve.
S6 pile forming: and after grouting is finished, cleaning the discharged muddy water, removing the machine, and solidifying the cement into the column.
Further, before the slip casting, utilize the host computer to drive the rotation that the bull stick made a round trip, be provided with the cutting water pipeling in the bull stick, the cutting water pipeling that utilizes the bottom to set up on the bull stick carries out the punching press cutting to the bull stick bottom all around to the bull stick cuts out the dead slot as the center, or cuts different cross sectional shape according to the demand, makes things convenient for the slip casting.
Further, when grouting, the jetting pipeline is used for jetting high-pressure gas to form vacuum at the mud discharging port, cut mud and water are sucked from the mud discharging port and are conveyed to a temporary storage pool on the ground through the mud discharging pipeline, and cleaning is facilitated.
Further, the bottom of bull stick is provided with pressure sensors, utilizes pressure sensors can detect underground pressure to the speed of mud is arranged in the control, and the underground pressure can be adjusted to the speed of mud is arranged in the utilization control, thereby guarantees the balance of pressure and makes the stratum internal pressure become normal, with the ground uplift that prevents to lead to by stratum internal pressure is too big, thereby reduces the influence of construction to the environment by a wide margin, has further guaranteed simultaneously to become the pile diameter, guarantees the reinforced effect of ground.
Further, the rotating rod comprises a pressure sensor, a control oil path, a cutting water pipeline, a cement pipeline, a slurry return water pipeline, a spraying pipeline, a sludge discharge pipeline and a retreating air pipeline.
The embodiment of the invention adopts at least one technical scheme which can achieve the following beneficial effects:
firstly, the effective reinforcement depth is large, the processing effect is reliable, the maximum effective reinforcement depth can reach 70m, and the pressure sensor arranged on the rotating rod can ensure that the injection regulation is always in the optimal state.
Secondly, in the embodiment of the invention, the high-pressure gas is sprayed at the sludge discharge port by the spraying pipeline to form vacuum mud water which is sucked into the sludge discharge pipeline, and the vacuum mud water is conveyed into a sludge discharge box or a sludge pond on the ground through the special sludge discharge pipe, and is transported away after being treated, so that the influence of the mud water on the surrounding environment is reduced, and the pressure in the ground is controlled by adjusting the sludge discharge amount to prevent the deformation caused by the ground shadow pressure.
Thirdly, the cross section shape of the reinforcing body in the embodiment of the invention can be set at will, the angle of the fan shape can be 5 degrees to 360 degrees, and the adaptability to construction conditions is strong.
Fourthly, the embodiment of the invention has wide application range and can be used for horizontal construction, vertical construction and inclined construction.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a flow chart of the operation of the present invention;
fig. 2 is a schematic perspective view of the rotating rod of the present invention.
Reference numerals:
the device comprises a rotating rod 1, a sensor 2, a control oil path 3, a cutting water pipeline (4)4, a cement pipeline 5, a slurry return water pipeline 6, a spraying pipeline 7, a sludge discharge pipeline 8 and a retreating air pipeline 9.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the specific embodiments of the present invention and the accompanying drawings. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solutions provided by the embodiments of the present invention are described in detail below with reference to the accompanying drawings.
An omnibearing high-pressure jet construction method is characterized by comprising the following steps:
s1 pilot hole: firstly, an anchoring rotating rod 1 is adopted and matched with an expanding head rotating head, and the diameter of a lead hole is 300-250 mm.
S2 placement host: after the rotating rod 1 is anchored, the surrounding field is leveled and cleaned, the groove width of the groove is 1.2 meters, the groove depth is 0.5 meter, the length can be controlled on site, a cement filling device is arranged in the groove to form a platform, a host is horizontally arranged and the hole alignment is well adjusted, the rotating rod 1 is placed to the specified depth, relevant parameters are set, and the guniting is promoted.
S3 sets parameters: the parameters of the cement pipeline 5, the injection pipeline 7 and the cutting water pipeline 4 are well set, the cement mixing amount is not less than 40%, the cement mixing amount per cubic meter is not less than 720kg, the cement slurry pressure: 40Mpa, cement slurry flow 160L/Min, back suction pressure: 0-20Mpa, reverse water flow: 0-60L, and the pressure of the hole cutting water: 10-30Mpa, hole cutting water flow: 0-60L, and the step stroke and step time are changed by adjusting the pressure of cement paste, the pressure of hole cutting water and the grouting amount, so as to control the diameter of the pile.
S4 grouting: be provided with cement pipeline 5 in the bull stick 1, pour into the hole groove that cuts out with cement through cement pipeline 5 and fill up to progressively lift bull stick 1 through the host computer, lay the cement height of suitable height.
S5 adjustment: the rotating rod 1 of the device is provided with a sludge discharge pipeline 8, the size of the sludge discharge valve can be freely controlled, and the sludge can be smoothly discharged through adjusting the size of the sludge discharge valve.
S6 pile forming: and after grouting is finished, cleaning the discharged muddy water, removing the machine, and solidifying the cement into the column.
Preferably, before slip casting, utilize the host computer to drive the rotation that bull stick 1 made a round trip, be provided with cutting water pipeline 4 in the bull stick 1, the cutting water pipeline 4 that utilizes the bull stick 1 to go up the bottom setting carries out the punching press cutting around to bull stick 1 bottom to bull stick 1 cuts out the dead slot as the center, or cuts different cross sectional shape according to the demand, makes things convenient for the slip casting.
Preferably, during grouting, high-pressure gas is sprayed from the spraying pipeline 7 to form vacuum at the sludge discharge port, cut sludge and water are sucked from the sludge discharge port and are conveyed to a temporary storage pool on the ground through the sludge discharge pipeline 8, and cleaning is facilitated.
Preferably, the bottom of bull stick 1 is provided with pressure sensor 2, utilizes pressure sensor 2 can detect underground pressure to the speed of mud is arranged in the control, and the underground pressure can be adjusted to the speed of mud is arranged in the utilization control, thereby guarantees the balance of pressure and makes the stratum internal pressure become normal, with the ground uplift that prevents to lead to by the too big ground internal pressure, thereby reduces the influence of construction to the environment by a wide margin, has further guaranteed simultaneously to become the pile diameter, guarantees the reinforced effect of ground.
Preferably, the rotating rod 1 comprises a pressure sensor 2, a control oil path 3, a cutting water pipeline 4, a cement pipeline 5, a slurry return water pipeline 6, a spraying pipeline 7, a sludge discharge pipeline 8 and a back air pipeline 9.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.
Claims (5)
1. An omnibearing high-pressure jet construction method is characterized by comprising the following steps:
s1 pilot hole: firstly, an anchoring rotating rod (1) is adopted and matched with an expanding head rotating head, and the diameter of a lead hole is 300-250 mm.
S2 placement host: after the rotating rod (1) is anchored, the surrounding field is leveled and cleaned, the groove width of the groove is 1.2 meters, the groove depth is 0.5 meter, the length can be controlled on site, a cement filling device is arranged in the groove to form a platform, a host is horizontally arranged and aligned, the rotating rod (1) is placed to a specified depth, relevant parameters are set, and guniting is promoted.
S3 sets parameters: the parameters of the cement pipeline (5), the injection pipeline (7) and the cutting water pipeline (4) are set well, the cement mixing amount is not less than 40%, the cement mixing amount per cubic meter is not less than 720kg, the cement slurry pressure: 40Mpa, cement slurry flow 160L/Min, back suction pressure: 0-20Mpa, reverse water flow: 0-60L, and the pressure of the hole cutting water: 10-30Mpa, hole cutting water flow: 0-60L, and the step stroke and step time are changed by adjusting the pressure of cement paste, the pressure of hole cutting water and the grouting amount, so as to control the diameter of the pile.
S4 grouting: be provided with cement pipeline (5) in bull stick (1), pour into cement into the hole groove that cuts out through cement pipeline (5) and fill up to rise bull stick (1) step by step through the host computer, lay the cement height of suitable height.
S5 adjustment: a mud discharging pipeline (8) is arranged on a rotating rod (1) of the device, the size of the mud discharging valve can be freely controlled, and the mud can be smoothly discharged through adjusting the size of the mud discharging valve.
S6 pile forming: and after grouting is finished, cleaning the discharged muddy water, removing the machine, and solidifying the cement into the column.
2. The all-round high-pressure injection method as claimed in claim 1, wherein: before the slip casting, utilize the host computer to drive the rotation that bull stick (1) made a round trip, be provided with cutting water pipeling (4) in bull stick (1), the cutting water pipeling (4) that utilize the bull stick (1) to go up the bottom and set up carries out the punching press cutting to bull stick (1) bottom all around to bull stick (1) cuts out the dead slot as the center, or cuts different cross sectional shape according to the demand, makes things convenient for the slip casting.
3. The all-round high-pressure injection method as claimed in claim 1, wherein: during grouting, high-pressure gas is sprayed at the mud discharging port by the aid of the spraying pipeline (7) to form vacuum, cut mud and water are sucked from the mud discharging port and conveyed to a temporary storage pool on the ground through the mud discharging pipeline (8), and cleaning is facilitated.
4. The all-round high-pressure injection method as claimed in claim 1, wherein: the bottom of bull stick (1) is provided with pressure sensors (2), utilizes pressure sensors (2) can detect underground pressure to the speed of mud is arranged in the control, the underground pressure can be adjusted to the speed of mud is arranged in the utilization control, thereby guarantee the balance of pressure and make the stratum internal pressure become normal, with the ground uplift that prevents to lead to by the too big ground internal pressure, thereby reduce the influence of construction to the environment by a wide margin, the pile-forming diameter has also further been guaranteed simultaneously, the effect of foundation reinforcement is guaranteed.
5. The all-round high-pressure injection method as claimed in claim 1, wherein: the rotating rod (1) comprises a pressure sensor (2), a control oil way (3), a cutting water pipeline (4), a cement pipeline (5), a slurry return water pipeline (6), a spraying pipeline (7), a sludge discharge pipeline (8) and a retreating air pipeline (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011561325.9A CN112695749A (en) | 2020-12-25 | 2020-12-25 | Omnibearing high-pressure injection construction method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011561325.9A CN112695749A (en) | 2020-12-25 | 2020-12-25 | Omnibearing high-pressure injection construction method |
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| Publication Number | Publication Date |
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| CN112695749A true CN112695749A (en) | 2021-04-23 |
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| CN202011561325.9A Pending CN112695749A (en) | 2020-12-25 | 2020-12-25 | Omnibearing high-pressure injection construction method |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1161799A (en) * | 1997-08-08 | 1999-03-05 | Kazuo Iki | High pressure jet agitation pile method by two or more jet nozzles |
| CN106087999A (en) * | 2016-03-19 | 2016-11-09 | 王继忠 | A kind of stir constructing device and the construction method thereof spraying expanding reinforcing pile |
| CN108661566A (en) * | 2018-07-18 | 2018-10-16 | 浙江省地矿建设有限公司 | A kind of RJP techniques and the general drill bit of MJS techniques and its construction technology |
| CN108775012A (en) * | 2018-07-03 | 2018-11-09 | 上海勘察设计研究院(集团)有限公司 | A kind of major diameter ultra-deep high pressure jet grouting device and its grouting process |
-
2020
- 2020-12-25 CN CN202011561325.9A patent/CN112695749A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1161799A (en) * | 1997-08-08 | 1999-03-05 | Kazuo Iki | High pressure jet agitation pile method by two or more jet nozzles |
| CN106087999A (en) * | 2016-03-19 | 2016-11-09 | 王继忠 | A kind of stir constructing device and the construction method thereof spraying expanding reinforcing pile |
| CN108775012A (en) * | 2018-07-03 | 2018-11-09 | 上海勘察设计研究院(集团)有限公司 | A kind of major diameter ultra-deep high pressure jet grouting device and its grouting process |
| CN108661566A (en) * | 2018-07-18 | 2018-10-16 | 浙江省地矿建设有限公司 | A kind of RJP techniques and the general drill bit of MJS techniques and its construction technology |
Non-Patent Citations (1)
| Title |
|---|
| 洪成泼: "上海软土地层MJS工法施工及应用研究", 《中国优秀硕士学位论文全文数据库工程科技II辑》 * |
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Application publication date: 20210423 |
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