CN113833493B - Bag body pipe shed for rock and soil layer reinforcement - Google Patents
Bag body pipe shed for rock and soil layer reinforcement Download PDFInfo
- Publication number
- CN113833493B CN113833493B CN202111154487.5A CN202111154487A CN113833493B CN 113833493 B CN113833493 B CN 113833493B CN 202111154487 A CN202111154487 A CN 202111154487A CN 113833493 B CN113833493 B CN 113833493B
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- Prior art keywords
- pipe
- grouting
- communicated
- water injection
- circular
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- 239000002689 soil Substances 0.000 title abstract description 39
- 239000011435 rock Substances 0.000 title abstract description 37
- 230000002787 reinforcement Effects 0.000 title abstract description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 238000002347 injection Methods 0.000 claims abstract description 44
- 239000007924 injection Substances 0.000 claims abstract description 44
- 239000010985 leather Substances 0.000 claims abstract description 42
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 11
- 239000002985 plastic film Substances 0.000 claims description 3
- 230000001681 protective effect Effects 0.000 claims description 3
- 239000002775 capsule Substances 0.000 abstract description 18
- 238000001125 extrusion Methods 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 238000006073 displacement reaction Methods 0.000 description 10
- 239000007788 liquid Substances 0.000 description 7
- 230000000694 effects Effects 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000007711 solidification Methods 0.000 description 3
- 230000008023 solidification Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/003—Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/15—Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members
- E21D11/152—Laggings made of grids or nettings
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The invention discloses a capsule body pipe shed for rock and soil layer reinforcement, and belongs to the technical field of reinforcement devices. This geotechnical layer consolidates with bag body pipe canopy includes: one end of the water injection pipe is communicated with one end of a connecting pipe, the connecting pipe is arranged in a through hole arranged on the circular pipe body in a penetrating way, and the water injection pipe is also provided with a pressure measuring part and a valve; one end of the grouting pipe is communicated with one end of the other connecting pipe, the connecting pipe is arranged in a through hole formed in the circular pipe body in a penetrating mode, and a valve is also arranged on the grouting pipe; the grouting leather bags are tightly attached to the outer wall of the bottom of the circular pipe body, and are communicated with the other ends of the two connecting pipes; the discharge port of the water injection machine is communicated with one end of a water injection pipe; the discharge port of the grouting machine is communicated with one end of the grouting pipe. The grouting not only generates extrusion force, but also can permanently and stably apply extrusion load, and the whole process period keeps extrusion of the rock soil layer around the capsule body pipe shed, so that the control of the stress of the rock soil body is achieved, and further the rock soil layer of the underground facility is effectively reinforced, and the underground facility is protected.
Description
Technical Field
The invention relates to the technical field of reinforcing devices, in particular to a bag body pipe shed for rock and soil layer reinforcement.
Background
Urban underground engineering construction, which is often disturbed by the facilities adjacent to the existing facilities, such as underground structures, pipelines and the like, is often close to the existing facilities, and normal operation of the existing facilities is endangered. Before engineering construction, necessary technical demonstration should be carried out on the safety of existing facilities, even pre-reinforcement treatment is carried out, and some engineering is usually added with corresponding protection technical measures in the construction process.
The existing underground facilities have higher safety requirements on disturbance influence, displacement deformation control is usually millimeter and centimeter-level requirements, and the overall rigidity of reinforcement measures in a rock-soil body is usually low, so that the requirement on micro displacement control of an adjacent structure is difficult to meet. The device solves the problem of the current underground facility protection technology by controlling the stress of the rock-soil body, and therefore, the capsule body pipe shed for reinforcing the rock-soil layer is provided.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a capsule body pipe shed for reinforcing a rock and soil layer.
The invention provides a capsule body pipe shed for rock and soil layer reinforcement, which comprises a circular pipe body and further comprises the following components: the grouting device comprises a water injection pipe, a grouting leather bag, a water injection machine, a grouting machine and an arc panel, wherein one end of the water injection pipe is communicated with one end of a connecting pipe, the connecting pipe is arranged in a through hole formed in a circular pipe body in a penetrating mode, and a pressure measuring part and a valve are further arranged on the water injection pipe; one end of the grouting pipe is communicated with one end of the other connecting pipe, the connecting pipe is arranged in a through hole formed in the circular pipe body in a penetrating mode, and a valve is also arranged on the grouting pipe; the grouting leather bags are tightly attached to the outer wall of the bottom of the circular pipe body, and are communicated with the other ends of the two connecting pipes; the water injection machine discharge port is communicated with the other end of the water injection pipe, and the water injection machine feed port is communicated with a water source; the discharge port of the grouting machine is communicated with the other end of the grouting pipe, and the feed port of the grouting machine is communicated with a slurry source; the inner surface of the arc panel is fixedly connected with the grouting leather bag, and the arc panel is tightly attached to the pipe wall of the circular pipe body.
Preferably, one end of the arc panel is fixed on the outer wall of the circular pipe body through a fastener, and the arc panel is used for preventing the arc panel from falling off the circular pipe body.
Preferably, two sides of the outer wall of the circular pipe body are fixedly connected with two reinforcing wing plates, and the plate surfaces of the reinforcing wing plates are parallel to the horizontal plane.
Preferably, the end part of the circular pipe body is fixedly provided with a conical wedge, and the inside of the wedge is fixedly connected with a supporting plate.
Preferably, the cambered surface plate is a PVC plastic sheet with a protective effect on the grouting leather bag.
Preferably, the circular pipe body is provided with a plane near the pipe wall of the arc panel.
Compared with the prior art, the application has the beneficial effects that: after the capsule body pipe shed for reinforcing the rock and soil layer is driven into the rock and soil layer, the water injection pipe is injected with water to pressurize, when water flow overflows in the grouting pipe, the water injection pipe is stopped to inject water and stabilize pressure, the grouting leather capsule is expanded and extrudes the rock and soil layer around the capsule body pipe shed for controlling the millimeter and centimeter displacement deformation of the nearby rock and soil layer, after the displacement of the rock and soil layer is properly changed, the grouting pipe is injected with grouting liquid, the grouting liquid extrudes the water in the grouting leather capsule from the water injection pipe until the grouting liquid overflows from the water injection pipe, the grouting liquid stops to wait for solidification of the grouting liquid, and extrusion load which can be permanently and stably applied is generated through grouting liquid, so that the rock and soil layer around the capsule body pipe shed is extruded during the whole process, the control of the stress of the rock and soil layer of underground facilities is effectively reinforced, and underground facilities are protected.
Drawings
FIG. 1 is a schematic end view of the present invention;
Fig. 2 is a side cross-sectional view of the present invention.
Reference numerals illustrate:
21. the grouting pipe comprises a circular pipe body 22, reinforcing wing plates 23, cambered surface plates 24, grouting leather bags 25, water injection pipes 26, connecting pipes 27, grouting pipes 28, through holes 29, fasteners 30, wedge heads and supporting plates 31.
Detailed Description
The following detailed description of specific embodiments of the invention is, but it should be understood that the invention is not limited to specific embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a capsule body pipe shed for rock and soil layer reinforcement, which comprises a circular pipe body 21, and further comprises the following components in fig. 1-2: the grouting device comprises a water injection pipe 25, a grouting pipe 27, a grouting leather bag 24, a water injection machine and a grouting machine, wherein one end of the water injection pipe 25 is communicated with one end of a connecting pipe 26, the connecting pipe 26 is arranged in a through hole 28 arranged on the circular pipe body 21 in a penetrating way, and a pressure measuring part and a valve are further arranged on the water injection pipe 25; one end of the grouting pipe 27 is communicated with one end of another connecting pipe 26, the connecting pipe 26 is arranged in a through hole 28 arranged on the circular pipe body 21 in a penetrating way, and a valve is also arranged on the grouting pipe 27; the grouting leather bags 24 are tightly attached to the outer wall of the bottom of the circular pipe body 21, and the grouting leather bags 24 are communicated with the other ends of the two connecting pipes 26; the discharge port of the water injection machine is communicated with the other end of the water injection pipe 25, and the feed port of the water injection machine is communicated with a water source; the discharge port of the grouting machine is communicated with the other end of the grouting pipe 27, and the feed port of the grouting machine is communicated with a slurry source; the inner surface of the arc panel 23 is fixedly connected with a grouting leather bag 24, and the arc panel 23 is tightly attached to the pipe wall of the circular pipe body 21.
After the capsule body pipe shed for reinforcing the rock and soil layer is driven into the rock and soil layer, the grouting machine is disconnected from the grouting pipe, two valves are opened at the same time, the water injection machine is started to inject water into the water injection pipe for pressurization, when water flows continuously overflow from the end part of the grouting pipe, the two valves and the water injection machine are closed, the pressure value on the pressure measuring part is observed for five minutes, if the pressure value is obviously reduced, the grouting leather bag 24 is not good in sealing effect, and a new grouting leather bag 24 is checked and replaced; if the pressure value has no obvious change, which indicates that the grouting leather bag 24 has good sealing effect, the grouting machine is communicated with the grouting pipe 27, the grouting machine is disconnected with the water injection pipe 25, the valve on the grouting pipe 27 is completely opened, the valve on the water injection pipe 25 is moderately opened, the grouting machine is started, the grouting leather bag is expanded and extrudes the rock soil layer around the bag body pipe shed, the displacement deformation control of millimeter and centimeter levels of the nearby rock soil layer is used, the displacement of the rock soil layer is properly changed, meanwhile, the pressure value of the pressure measuring part is observed, the grouting is carried out through grouting the grouting pipe, the water in the grouting leather bag is extruded from the water injection pipe until the pressure value of the pressure measuring part reaches a specific value, the valve on the grouting pipe is closed, the grouting machine is powered off, and the grouting is stopped and the slurry is waited for solidification. The grouting not only generates extrusion force, but also can permanently and stably apply extrusion load, and the whole process period keeps extrusion of the rock soil layer around the capsule body pipe shed, so that the control of the stress of the rock soil body is achieved, and further the rock soil layer of the underground facility is effectively reinforced, and the underground facility is protected.
The arc panel is used for protecting the grouting leather bag, the grouting leather bag is prevented from being torn by friction force in the process of driving the pipe shed of the grouting leather bag into a rock soil layer, meanwhile, when the pipe shed of the grouting leather bag is driven into the rock soil layer, rock soil near the outer wall of the pipe shed is not smooth, stress concentration is easy to occur when the grouting leather bag produces extrusion load to the rock soil layer, the grouting leather bag is punctured, and the arc panel can prevent the rock soil from concentrating the stress of the grouting leather bag, and the extrusion load is uniformly applied.
Preferably, one end of the arc plate 23 is fixed to the end of the circular tube body 21 by a fastener as shown in fig. 2, for preventing the arc plate 23 from falling off the circular tube body 21.
The device has the advantages that when the device is driven into the pipe shed of the capsule body, the arc panel and the circular pipe body are prevented from generating relative displacement, and further the grouting capsule body is pulled, meanwhile, when water injection and grouting are allowed, the grouting capsule body extrudes the arc panel, and the arc panel can generate relative displacement in the radial direction of the circular pipe body.
Preferably, as shown in fig. 1-2, two reinforcing wing plates 22 are fixedly connected to two sides of the outer wall of the circular pipe body 21, and the plate surfaces of the reinforcing wing plates 22 are parallel to the horizontal plane.
Aims to prevent the round pipe body from bending and deforming in the process of driving the round pipe body into a rock soil layer and also plays a role in guiding.
Preferably, as shown in fig. 2, a conical wedge head 30 is fixedly arranged at the end of the circular pipe body 21, and a supporting plate 31 is fixedly connected inside the wedge head 30.
The purpose is to reduce resistance when driving a circular pipe body.
Preferably, the cambered surface plate 23 is a PVC plastic sheet with a protective effect on the grouting leather bag 24 as shown in the figures 1-2.
So that the grouting leather bag 24 is uniformly extruded after being filled with liquid, and the grouting leather bag 24 is prevented from being broken due to stress concentration of sand and stone in a rock-soil body on the grouting leather bag 24.
Preferably the circular tube body 21 is provided with a flat surface near the wall of the arc panel 23.
Before water injection and grouting, the circular pipe body 21 and the cambered surface plate 23 which are beaten into the rock and soil layer are mutually clung, the grouting leather bag 24 is clamped between the circular pipe body 21 and the cambered surface plate, the grouting leather bag is filled with water, the resistance of the water flow is larger, the flow speed of the slurry is slower than that of water, and the grouting leather bag is unevenly filled, so the structure is designed, a space is reserved between the circular pipe body 21 and the cambered surface plate 23, water or slurry is allowed to smoothly fill the space along the length direction of the circular pipe body 21, after a certain pressure value is reached, the water or slurry is filled to two sides, and the problem that the grouting leather bag is unevenly filled with the water or the slurry is avoided.
The application method of the capsule body pipe shed for rock-soil layer reinforcement provided by the invention comprises the following steps:
After the capsule body pipe shed for reinforcing the rock and soil layer is driven into the rock and soil layer, the grouting machine is disconnected from the grouting pipe, two valves are opened at the same time, the water injection machine is started to inject water into the water injection pipe for pressurization, when water flows continuously overflow from the end part of the grouting pipe, the two valves and the water injection machine are closed, the pressure value on the pressure measuring part is observed for five minutes, if the pressure value is obviously reduced, the grouting leather bag 24 is not good in sealing effect, and a new grouting leather bag 24 is checked and replaced; if the pressure value has no obvious change, which indicates that the grouting leather bag 24 has good sealing effect, the grouting machine is communicated with the grouting pipe 27, the grouting machine is disconnected from the water injection pipe 25, the valve on the grouting pipe 27 is completely opened, the valve on the water injection pipe 25 is moderately opened (the purpose is to drain water while stabilizing pressure), the grouting machine is started, the grouting leather bag is expanded and extrudes a rock stratum around the bag body pipe shed, the grouting leather bag is used for controlling the displacement deformation of the nearby rock stratum millimeter and centimeter level, the rock stratum displacement is properly changed, meanwhile, the pressure value of the pressure measuring part is observed, the grouting is carried out on the grouting pipe, the slurry extrudes the water in the grouting leather bag from the water injection pipe until the slurry continuously overflows from the water injection pipe, the valve on the water injection pipe 25 is completely closed until the pressure value of the pressure measuring part reaches a specific value, the valve on the grouting pipe is closed, the grouting machine is powered off, and the grouting is stopped, and the slurry is waited for solidification.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a geotechnical layer consolidates with bag body pipe canopy, includes circular pipe body (21), its characterized in that still includes:
one end of the water injection pipe (25) is communicated with one end of a connecting pipe (26), the connecting pipe (26) is arranged in a through hole (28) arranged on the circular pipe body (21) in a penetrating way, and the water injection pipe (25) is also provided with a pressure measuring part and a valve;
One end of the grouting pipe (27) is communicated with one end of the other connecting pipe (26), the connecting pipe (26) is arranged in a through hole (28) arranged on the circular pipe body (21) in a penetrating way, and a valve is also arranged on the grouting pipe (27);
The grouting leather bag (24) is tightly attached to the outer wall of the bottom of the circular pipe body (21), and the grouting leather bags (24) are communicated with the other ends of the two connecting pipes (26);
the discharge port of the water injection machine is communicated with the other end of the water injection pipe (25), and the feed port of the water injection machine is communicated with a water source;
the discharge port of the grouting machine is communicated with the other end of the grouting pipe (27), and the feed port of the grouting machine is communicated with a slurry source;
an arc panel (23), the inner surface of which is fixedly connected with a grouting leather bag (24), and the arc panel (23) is tightly attached to the pipe wall of the circular pipe body (21);
The cambered surface plate (23) is fixed on the outer wall of the circular pipe body (21) through a fastener (29) and is used for preventing the cambered surface plate (23) from falling off the circular pipe body (21).
2. The pipe shed as claimed in claim 1, characterized in that two reinforcing wing plates (22) are fixedly connected to two sides of the outer wall of the circular pipe body (21), and the plate surfaces of the reinforcing wing plates (22) are parallel to a horizontal plane.
3. Pipe shed according to claim 1, characterized in that the end of the circular pipe body (21) is fixedly provided with a conical wedge (30), the inside of the wedge (30) being fixedly connected with a support plate (31).
4. Pipe shed according to claim 1, characterized in that the cambered surface plate (23) is a PVC plastic sheet with a protective effect on the grouting leather bag (24).
5. A pipe shed according to claim 1, characterized in that the circular pipe body (21) is provided with a plane near the pipe wall of the arc panel (23) for providing an expanded space for the grouting bellows (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111154487.5A CN113833493B (en) | 2021-09-29 | 2021-09-29 | Bag body pipe shed for rock and soil layer reinforcement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111154487.5A CN113833493B (en) | 2021-09-29 | 2021-09-29 | Bag body pipe shed for rock and soil layer reinforcement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113833493A CN113833493A (en) | 2021-12-24 |
| CN113833493B true CN113833493B (en) | 2024-06-04 |
Family
ID=78967655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111154487.5A Active CN113833493B (en) | 2021-09-29 | 2021-09-29 | Bag body pipe shed for rock and soil layer reinforcement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113833493B (en) |
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|---|---|---|---|---|
| KR100888585B1 (en) * | 2008-06-05 | 2009-03-13 | (주)경동기술공사 | Mult-step pressure type grouting apparatus and grouting method of using the same |
| CN102003189A (en) * | 2010-12-20 | 2011-04-06 | 中铁隧道集团有限公司 | Mold bag grouting method and device for quickly and uniformly reinforcing soft stratum |
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| CN107542469A (en) * | 2017-03-29 | 2018-01-05 | 清华海峡研究院（厦门） | A kind of underground mould bag stake method for protecting support |
| CN108533273A (en) * | 2018-04-11 | 2018-09-14 | 北京市政建设集团有限责任公司 | A kind of novel pipe shed for Support System in Soft Rock Tunnels leading pre-supporting |
| CN109680675A (en) * | 2019-01-25 | 2019-04-26 | 天津大学 | A kind of Stabilizing Grout method that can dynamically control grouting amount and harden opportunity |
| CN110172973A (en) * | 2019-05-23 | 2019-08-27 | 上海长凯岩土工程有限公司 | A kind of grouting method of combined steel tube pile structure |
| CN209621352U (en) * | 2019-03-14 | 2019-11-12 | 兰州资源环境职业技术学院 | A kind of positioning slip casting anchoring prestress anchor tube rope |
| CN113047866A (en) * | 2021-04-20 | 2021-06-29 | 南昌工程学院 | Large pipe shed grouting connection structure for shallow-buried small-spacing rock tunnel construction |
-
2021
- 2021-09-29 CN CN202111154487.5A patent/CN113833493B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100888585B1 (en) * | 2008-06-05 | 2009-03-13 | (주)경동기술공사 | Mult-step pressure type grouting apparatus and grouting method of using the same |
| CN102003189A (en) * | 2010-12-20 | 2011-04-06 | 中铁隧道集团有限公司 | Mold bag grouting method and device for quickly and uniformly reinforcing soft stratum |
| CN106639973A (en) * | 2016-12-19 | 2017-05-10 | 中铁建大桥工程局集团第二工程有限公司 | Grouting structure and grouting method for ground surface ultra-deep hole double liquid slurry grouting |
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| CN113047866A (en) * | 2021-04-20 | 2021-06-29 | 南昌工程学院 | Large pipe shed grouting connection structure for shallow-buried small-spacing rock tunnel construction |
Also Published As
| Publication number | Publication date |
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| CN113833493A (en) | 2021-12-24 |
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