CN113638399A - Method for controlling soil body deformation from side by real-time dynamic repeatable reversible grouting - Google Patents
Method for controlling soil body deformation from side by real-time dynamic repeatable reversible grouting Download PDFInfo
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- CN113638399A CN113638399A CN202111077155.1A CN202111077155A CN113638399A CN 113638399 A CN113638399 A CN 113638399A CN 202111077155 A CN202111077155 A CN 202111077155A CN 113638399 A CN113638399 A CN 113638399A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/12—Consolidating by placing solidifying or pore-filling substances in the soil
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D15/00—Handling building or like materials for hydraulic engineering or foundations
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- General Engineering & Computer Science (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- Civil Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Environmental & Geological Engineering (AREA)
- Soil Sciences (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a method for controlling soil deformation laterally by real-time dynamic repeatable reversible grouting, which comprises the steps of putting a grouting device into a grouting hole, wherein the grouting device comprises a grouting pipe and an outer sleeve which are coaxially arranged and fixedly connected together, the upper end part of the grouting pipe is connected with a slurry pipe, the lower part of the grouting pipe is provided with an inner bag which is hermetically connected with the grouting pipe, the outer bag is wrapped outside the inner bag, the lower end part of the outer sleeve is provided with a water inlet and a water outlet which are positioned in the outer bag, the upper end part of the outer sleeve is connected with a water pipe, the water pipe is connected with a drain valve, the control system dynamically controls the deformation of the outer bag in real time by controlling the water supply amount of the water pipe and the water discharge amount of the drain valve according to the soil deformation data monitored in real time, after the soil deformation control process is finished and the soil deformation is stable, grouting the inner bag through a grout pipe and a grouting pipe, draining water through a drain valve, and replacing water in the outer bag by using grout with equal pressure and equal volume. The invention can dynamically and repeatedly adjust the deformation of the soil body in real time in a reverse direction.
Description
Technical Field
The invention relates to the technical field of foundation, foundation engineering and underground engineering construction, in particular to a method for controlling soil body deformation from the side by real-time dynamic repeatable reversible grouting.
Background
Underground works construction generally can produce certain influence to the surrounding environment, for example precipitation and earthwork excavation in the deep foundation ditch engineering can arouse that foundation ditch bottom soil body uplift, surrounding soil body produce horizontal and vertical displacement, can influence peripheral subway tunnel and building safety even, so in underground works work progress, both will guarantee the stability of underground works structure itself, will carry out the strict control to underground works structure itself and the deformation of surrounding soil body again.
At present, the control effect of a sleeve valve pipe grouting technology and a single-point bag type grouting method on soil deformation cannot be expected well, and the following defects mainly exist:
1) the sleeve valve tube grouting technology and the single-point bag grouting method have no real-time property. The sleeve valve pipe grouting and single-point bag type grouting are adopted to control the deformation of the soil body, only one-time grouting can be performed, and the grouting amount is difficult to adjust in real time according to the deformation of the soil body in the grouting process.
2) Sleeve valve tube grouting and single point bladder grouting have no repeatability. The soil deformation caused by engineering construction has the characteristic of continuity, and after the soil deformation is controlled within the allowable range through single grouting, the soil can be continuously deformed due to further engineering construction, so that the soil deformation is controlled through re-grouting. By adopting sleeve valve pipe grouting and single-point bag type grouting, only a plurality of rows of grouting holes can be drilled, one grouting hole cannot be reused, and when site conditions are limited, the plurality of rows of grouting holes are difficult to drill, so that the construction convenience is poor and the cost is high.
3) Sleeve valve tube grouting and single point bladder grouting are not reversible. After the grouting is adopted to control the deformation of the soil body, further engineering construction may cause the deformation of the soil body to change in the opposite direction, and the sleeve valve pipe grouting and the single-point bag type grouting are adopted, so that only new grouting holes can be arranged on the opposite side of a control area, and the existing grouting holes cannot be reused.
In conclusion, sleeve valve pipe grouting and single-point bag grouting are difficult to adjust grouting amount in real time, cannot adjust deformation amount for multiple times and cannot adjust soil deformation reversely.
Disclosure of Invention
The invention provides a method for controlling soil deformation laterally by real-time dynamic repeatable reversible grouting for solving the technical problems in the prior art, which can dynamically and repeatedly adjust the soil deformation in a reverse direction in real time.
The technical scheme adopted by the invention for solving the technical problems in the prior art is as follows: a method for controlling soil deformation laterally by real-time dynamic repeatable reversible grouting comprises placing a grouting device into a grouting hole at a set position, wherein the grouting device comprises a grouting pipe and an outer sleeve which are coaxially arranged and fixedly connected together, the bottom end of the grouting pipe is closed, the grouting pipe penetrates through the outer sleeve, the bottom end of the outer sleeve is hermetically connected with the grouting pipe, the upper end part of the grouting pipe is connected with a grouting pipe, the lower part of the grouting pipe is provided with an inner bag which is hermetically connected with the grouting pipe, the grouting pipe penetrates through the inner bag, a pipe section of the grouting pipe, which is positioned inside the inner bag, is provided with a plurality of uniformly distributed grouting ports, the outer bag is wrapped with an outer bag, the upper end of the outer bag is hermetically and fixedly connected with the lower end part of the outer sleeve, the upper end of the outer bag is hermetically and fixedly connected with the lower end part of the inner sleeve, the lower end part of the outer sleeve is provided with a water inlet and outlet which is positioned inside the outer bag, the upper end part of the outer sleeve is connected with a water pipe, the water pipe is connected with a drain valve, a control system dynamically controls the deformation of the outer bag in real time by controlling the water supply amount of the water pipe and the water discharge amount of the drain valve according to soil deformation data monitored in real time, after the soil deformation control process is finished and the soil deformation is stable, grouting is carried out on the inner bag through the grout pipe and the grouting pipe, water is discharged through the drain valve, and water in the outer bag is replaced by equal-pressure equal-volume slurry.
The outer diameter of the outer sleeve is 30-50 mm, the outer diameter of the grouting pipe is 16-25 mm, the aperture of the grouting hole is 100-200 mm, and the diameters of the inner bag and the outer bag after expansion are 500-1000 mm.
The shape of the inner bag is determined according to a soil deformation control simulation result.
The invention has the advantages and positive effects that: the water is injected into the outer bag firstly, and because the water cannot be solidified, the water quantity in the outer bag can be dynamically controlled in real time according to the change condition of the deformation of the soil body in the process of controlling the deformation of the soil body, water can be injected or drained for many times, the deformation of the soil body can be dynamically controlled in real time, and the reversibility is achieved. The soil deformation control can be realized repeatedly by 1 grouting hole, and the grouting holes do not need to be additionally arranged for control. When the deformation of the soil body is not required to be controlled, slurry is injected into the inner bag, water in the outer bag is displaced in an equal-pressure and equal-volume mode through the drain valve on the outer sleeve, and tests show that the influence of the displacement process on the deformation of the soil body is extremely small.
Drawings
FIG. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of a water injection and drainage process using the present invention;
fig. 3 is a schematic view after grouting according to the invention.
In the figure: 1. an outer sleeve; 1-1, water inlet and outlet; 2. a grouting pipe; 2-1, grouting ports; 3. an outer pouch; 4. an inner pouch; 5. a water pipe; 6. a slurry pipe.
Detailed Description
In order to further understand the contents, features and effects of the present invention, the following embodiments are illustrated and described in detail with reference to the accompanying drawings:
referring to fig. 1 to 3, a method for controlling soil deformation laterally by real-time dynamic repeatable reversible grouting is provided, a grouting device is put into a grouting hole at a set position, the grouting device comprises a grouting pipe 2 and an outer sleeve 1 which are coaxially arranged and fixedly connected together, the bottom end of the grouting pipe 2 is closed, the grouting pipe 2 penetrates through the outer sleeve 1, the bottom end of the outer sleeve 1 is hermetically connected with the grouting pipe 2, the upper end of the grouting pipe 2 is connected with a slurry pipe 6, the lower part of the grouting pipe 2 is provided with an inner bag 4 hermetically connected with the grouting pipe 2, the grouting pipe 2 penetrates through the inner bag 4, a plurality of uniformly distributed grouting ports 2-1 are arranged on the pipe section of the grouting pipe 2 inside the inner bag 4, the outer bag 3 is wrapped outside the inner bag 4, and the upper end of the outer sleeve 3 is hermetically and fixedly connected with the lower end of the outer sleeve 1, the lower end of the outer sleeve 1 is fixedly connected with the lower end of the inner sleeve 2 in a sealing manner, a water inlet and a water outlet 1-1 which are positioned inside the outer bag 3 are arranged at the lower end of the outer sleeve 1, the upper end of the outer sleeve 1 is connected with a water pipe 5, a drain valve (not shown in the figure) is connected onto the water pipe 5, a control system dynamically controls the deformation of the outer bag 3 in real time by controlling the water supply amount of the water pipe 3 and the water discharge amount of the drain valve according to soil deformation data monitored in real time, after the soil deformation control process is finished and the soil deformation is stable, grouting is performed on the inner bag 4 through the grout pipe 6 and the grout injection pipe 2, water is drained through the drain valve, and water in the outer bag 3 is replaced by adopting equal-pressure and equal-volume grout.
In this embodiment, the outer diameter of the outer sleeve 1 is 30-50 mm, the outer diameter of the grouting pipe 2 is 16-25 mm, the aperture of the grouting hole is 100-200 mm, and the diameters of the inner bag 4 and the outer bag 3 after expansion are 500-1000 mm. The shape of the inner bag 4 is determined according to engineering experience and a soil deformation control simulation result.
The method comprises the following steps:
one) measurement lofting
And (4) lofting in a construction site, and determining the ground elevation, the drilling position and the drilling depth by using a total station according to the design requirements of hole sites.
II) drilling grouting holes
And (3) drilling a hole at the drilling position by adopting a drilling machine, wherein the hole diameter is 100-200 mm, and the final hole is drilled to the designed drilling depth. Before drilling, the levelness of the body of the drilling machine and the verticality of a drill rod are checked, the drilling machine is required to be basically horizontal, and the vertical deviation of the drilling hole is less than 1%. The drilling process is kept at a medium speed, and when a hard layer is encountered, the drill is decelerated and prevented from being stuck. And the drilling hole adopts a slurry protection wall to prevent hole collapse.
III) installing a grouting device
The shapes of the inner bag and the outer bag can be determined according to the soil deformation control simulation result, so that the inner bag and the outer bag can generate directional deformation, and the soil deformation can be reasonably controlled. The inner and outer bags are connected with the grouting pipe and the outer sleeve respectively and inserted into the designed depth of the drill hole.
IV) water injection correction
The water injection device is adopted to inject water into the outer sleeve through the water pipe, and the outer bag has the set shape, high pressure resistance and water tightness, so that the volume is gradually increased along with the increase of water injection amount, the outer bag can extrude the surrounding soil body, and the purpose of directional deformation of the soil body is achieved. And (3) with the progress of the engineering, the soil body is possibly further deformed, and water is dynamically injected or discharged into or out of the grouting hole in real time according to the soil body deformation data monitored in real time to further deform the soil body.
Fifthly) grouting replacement
After the surrounding soil body is deformed and stabilized, quantitative grout is injected into the inner bag through a grout pipe by grouting equipment, and meanwhile, a drain valve is opened to extrude water in the outer bag in equal pressure and equal volume to realize replacement. The slurry is a cement-water glass two-liquid type mixed liquid prepared by a tester. And adopting corresponding grouting pressure, grouting time and grouting amount according to actual conditions. And stopping grouting of the grouting hole after the grouting amount meets the requirement.
According to the invention, the deformation of the outer bag is dynamically controlled in real time by controlling the water supply amount of the water pipe and the water discharge amount of the water discharge valve according to the soil deformation data monitored in real time, the deformation is controlled by adopting water injection, the real-time property, the repeatability and the reversibility are realized, the water injection amount can be adjusted in real time according to the soil deformation amount, and a grouting hole is not needed to be additionally punched for grouting after the primary grouting is finished. When the soil body is continuously deformed due to engineering construction, continuous deviation rectification control needs to be carried out on the soil body, multiple times of water injection or drainage can be carried out on one grouting hole by adopting the invention, the repeated use of one hole is realized, the construction is convenient, and the cost is low.
Although the preferred embodiments of the present invention have been described above with reference to the accompanying drawings, the present invention is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and those skilled in the art can make many modifications without departing from the spirit and scope of the present invention as defined in the appended claims.
Claims (3)
1. A method for controlling soil deformation laterally through real-time dynamic repeatable reversible grouting is characterized in that a grouting device is put into a grouting hole to set a position, the grouting device comprises a grouting pipe and an outer sleeve which are coaxially arranged and fixedly connected together, the bottom end of the grouting pipe is closed, the grouting pipe penetrates through the outer sleeve, the bottom end of the outer sleeve is in sealing connection with the grouting pipe, the upper end of the grouting pipe is connected with a grout pipe, an inner bag in sealing connection with the grouting pipe is arranged at the lower part of the grouting pipe, the grouting pipe penetrates through the inner bag, a plurality of uniformly distributed grouting ports are arranged on a pipe section of the grouting pipe, which is positioned inside the inner bag, an outer bag is wrapped outside the inner bag, the upper end of the outer bag is in sealing connection with the lower end of the outer sleeve, the upper end of the outer bag is in sealing connection with the lower end of the inner sleeve, and a water inlet and outlet which is positioned inside the outer bag is arranged at the lower end of the outer sleeve, the upper end part of the outer sleeve is connected with a water pipe, the water pipe is connected with a drain valve, a control system dynamically controls the deformation of the outer bag in real time by controlling the water supply amount of the water pipe and the water discharge amount of the drain valve according to soil deformation data monitored in real time, after the soil deformation control process is finished and the soil deformation is stable, grouting is carried out on the inner bag through the grout pipe and the grouting pipe, water is discharged through the drain valve, and water in the outer bag is replaced by equal-pressure equal-volume slurry.
2. The method for controlling soil deformation from the side by real-time dynamic repeatable reversible grouting according to claim 1, wherein the outer diameter of the outer sleeve is 30-50 mm, the outer diameter of the grouting pipe is 16-25 mm, the aperture of the grouting hole is 100-200 mm, and the diameters of the inner bag and the outer bag after expansion are 500-1000 mm.
3. The method for controlling soil deformation laterally according to claim 1, wherein the shape of said inner bag is determined according to engineering experience and simulation results of soil deformation control.
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CN202111077155.1A CN113638399B (en) | 2021-09-13 | 2021-09-13 | Method for controlling soil body deformation from side by real-time dynamic repeatable reversible grouting |
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CN202111077155.1A CN113638399B (en) | 2021-09-13 | 2021-09-13 | Method for controlling soil body deformation from side by real-time dynamic repeatable reversible grouting |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114136267A (en) * | 2021-11-15 | 2022-03-04 | 天津大学 | Measurement and control integrated soil deformation dynamic control system based on composite capsule |
Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0610336A (en) * | 1992-06-25 | 1994-01-18 | Raito Kogyo Co Ltd | Consolidation method for soft ground |
CN2728987Y (en) * | 2004-09-21 | 2005-09-28 | 郭亮 | Film sealing bag for storing liquid |
CN204252139U (en) * | 2014-11-07 | 2015-04-08 | 山东大学 | Be applied to the two-layer equation film bagging apparatus of Grouting Pipe sealing in water burst sandy soils |
CN105862874A (en) * | 2016-04-14 | 2016-08-17 | 浙江科技学院 | Protection method for controlling deformation of building structure close to foundation pit |
CN205712093U (en) * | 2016-02-06 | 2016-11-23 | 北京市勘察设计研究院有限公司 | A kind of air bag plugging device carrying out grouting under pressure to soil nailing and anchor pole |
CN106437611A (en) * | 2016-10-24 | 2017-02-22 | 河南理工大学 | Method and device for prefabricated pipeline pressurized grouting hole sealing inside gas extraction drill hole |
CN206815315U (en) * | 2017-05-23 | 2017-12-29 | 天津大学 | The fluid injection supercharging capsule of fluid injection supercharging joint grouting and reinforcing super soft ground |
CN110144901A (en) * | 2019-05-22 | 2019-08-20 | 宁波大学 | A kind of prefabricated high-pressure gasbag isolation pilework and construction method with slip casting function |
CN112252300A (en) * | 2019-07-21 | 2021-01-22 | 上海班升科技有限公司 | Construction method for compensating foundation pit deformation by adopting hydraulic side expansion steel sheet pile |
-
2021
- 2021-09-13 CN CN202111077155.1A patent/CN113638399B/en active Active
Patent Citations (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0610336A (en) * | 1992-06-25 | 1994-01-18 | Raito Kogyo Co Ltd | Consolidation method for soft ground |
CN2728987Y (en) * | 2004-09-21 | 2005-09-28 | 郭亮 | Film sealing bag for storing liquid |
CN204252139U (en) * | 2014-11-07 | 2015-04-08 | 山东大学 | Be applied to the two-layer equation film bagging apparatus of Grouting Pipe sealing in water burst sandy soils |
CN205712093U (en) * | 2016-02-06 | 2016-11-23 | 北京市勘察设计研究院有限公司 | A kind of air bag plugging device carrying out grouting under pressure to soil nailing and anchor pole |
CN105862874A (en) * | 2016-04-14 | 2016-08-17 | 浙江科技学院 | Protection method for controlling deformation of building structure close to foundation pit |
CN106437611A (en) * | 2016-10-24 | 2017-02-22 | 河南理工大学 | Method and device for prefabricated pipeline pressurized grouting hole sealing inside gas extraction drill hole |
CN206815315U (en) * | 2017-05-23 | 2017-12-29 | 天津大学 | The fluid injection supercharging capsule of fluid injection supercharging joint grouting and reinforcing super soft ground |
CN110144901A (en) * | 2019-05-22 | 2019-08-20 | 宁波大学 | A kind of prefabricated high-pressure gasbag isolation pilework and construction method with slip casting function |
CN112252300A (en) * | 2019-07-21 | 2021-01-22 | 上海班升科技有限公司 | Construction method for compensating foundation pit deformation by adopting hydraulic side expansion steel sheet pile |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN114136267A (en) * | 2021-11-15 | 2022-03-04 | 天津大学 | Measurement and control integrated soil deformation dynamic control system based on composite capsule |
CN114136267B (en) * | 2021-11-15 | 2022-09-02 | 天津大学 | Measurement and control integrated soil deformation dynamic control system based on composite capsule |
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