CN211200350U - Grouting reinforcement control system suitable for gully terrain - Google Patents
Grouting reinforcement control system suitable for gully terrain Download PDFInfo
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- CN211200350U CN211200350U CN201921450809.9U CN201921450809U CN211200350U CN 211200350 U CN211200350 U CN 211200350U CN 201921450809 U CN201921450809 U CN 201921450809U CN 211200350 U CN211200350 U CN 211200350U
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Abstract
The utility model provides a slip casting reinforcement control system suitable for gully topography, include: the lower stream grouting hole, the side grouting hole, the middle grouting hole and the grouting pipe; the downstream grouting holes are arranged along the downstream of the gully of the site to be reinforced, the side grouting holes are arranged along two sides of the gully of the site to be reinforced, the middle grouting hole is arranged in an area surrounded by the downstream grouting holes and the side grouting holes, and the grouting pipe is arranged in each of the downstream grouting holes, the side grouting holes or the middle grouting holes. The utility model has the advantages that: the soil body pore blocking effect of the downstream grouting holes and the side grouting holes prevents slurry from flowing downstream along the gully and towards the two sides of the gully, reduces grouting amount, saves resources and time, and reduces the influence on the surrounding underground environment; the side surface of the grouting pipe is provided with the hole, so that the whole stratum can be uniformly grouted, the grouting reinforcement effect is enhanced, the occurrence of uneven reinforcement is effectively reduced, and the safety of foundation engineering is improved.
Description
Technical Field
The utility model relates to a ground engineering field especially relates to a slip casting reinforcement control system suitable for gully topography.
Background
Along with the rapid development of social economy, the shortage of urban land promotes the building land to rapidly expand to the periphery of the city, which is difficult to avoid touching various foundations, particularly loose filled foundations such as deep filled areas with gully terrains, mountain-opening backfill areas and the like, and the foundations provide new requirements for reinforcement construction technology.
The traditional grouting method is mainly used for controlling grouting pressure, but when grouting is carried out in a loose filling foundation with gully topography, the phenomenon that grout flows downstream along pores exists, the grouting amount is greatly increased, and the foundation is difficult to be uniformly reinforced. If reasonable grouting reinforcement measures cannot be adopted, the expected reinforcement effect is difficult to achieve.
Disclosure of Invention
In order to solve the problem, the utility model provides a slip casting reinforcement control system suitable for gully topography, include: the device comprises a downstream grouting hole (1), a side grouting hole (2), a middle grouting hole (3) and a grouting pipe (4); the downstream grouting holes (1) are arranged along the downstream of the gully of the site to be reinforced, the side grouting holes (2) are arranged along the two sides of the gully of the site to be reinforced, the middle grouting hole (3) is arranged in an area surrounded by the downstream grouting holes (1) and the side grouting holes (2), and the grouting pipe (4) is arranged in each of the downstream grouting holes (1), the side grouting holes (2) and the middle grouting holes (3). The downstream grouting holes (1) are constructed firstly, and then the side grouting holes (2) are constructed, wherein the downstream grouting holes (1) and the side grouting holes (2) are mainly used for plugging soil body pores. And the middle grouting hole is constructed after the construction of the downstream and side grouting holes is finished and the effect of blocking the soil body pore is achieved. The construction process of the grouting holes comprises the following steps: firstly, a drilling machine is adopted to form holes, then a grouting pipe is put downwards, and then grouting is carried out. The grouting slurry of the downstream and side grouting holes can adopt measures of increasing slurry viscosity, adding an accelerating agent and the like according to the characteristics of soil body pores so as to strengthen the effect of sealing the soil body pores.
Furthermore, the downstream grouting holes (1) are not less than two rows and are arranged in a quincunx shape.
Further, the middle grouting holes (3) are arranged in a square or quincunx shape.
Furthermore, the distance ranges between adjacent downstream grouting holes (1), between adjacent side grouting holes (2) and between adjacent middle grouting holes (3) are all 1.0-2.5 m.
Furthermore, the thickness of the downstream grouting holes (1), the lateral grouting holes (2) and the middle grouting hole (3) which penetrate through the soil layer to be reinforced is not less than 0.5 m.
Further, the grouting pipe (4) is a PVC pipe or a steel pipe, and the pipe diameter is not less than 42 mm; the side wall of the grouting pipe (4) is provided with holes, the holes in the side wall of the grouting pipe (4) are arranged in a quincunx shape, the hole diameter is not smaller than 2mm, and the hole distance is not larger than 50 cm.
Further, a soil covering layer is arranged above the downstream grouting holes (1), the side grouting holes (2) and the middle grouting hole (3), and the thickness of the soil covering layer is not less than 2 m.
The utility model provides a beneficial effect that technical scheme brought is: the soil body pore blocking effect of the downstream grouting holes and the side grouting holes can prevent slurry from flowing to the downstream and the two sides of the gully along the gully, greatly reduce grouting amount, save resources and time, and reduce the influence on the surrounding underground environment; meanwhile, holes are formed in the side faces of the grouting pipes, so that the whole stratum can be uniformly grouted, the grouting reinforcement effect is enhanced, the occurrence of uneven reinforcement is effectively reduced, and the safety of foundation engineering is improved; the method has the advantages of being safe and reliable, convenient to construct and resource-saving in whole, capable of effectively reducing reinforcing construction cost, enhancing reinforcing effect and reducing influence on the surrounding environment, and high in practicability and applicability.
Drawings
The invention will be further explained with reference to the drawings and examples, wherein:
fig. 1 is a plan view of a grouting reinforcement control system for gully topography according to an embodiment of the present invention;
FIG. 2 is a schematic view of an embodiment of the grouting pipe of the present invention;
fig. 3 is a cross-sectional view of a grouting reinforcement control system suitable for use in a gully topography in an embodiment of the present invention 1;
fig. 4 is a sectional view 2 of a grouting reinforcement control system suitable for use in a gully topography according to an embodiment of the present invention.
Wherein: 1-downstream grouting hole, 2-side grouting hole, 3-middle grouting hole, 4-grouting pipe, 5-side drilling of grouting pipe, 6-grouting hole wall, and 7-grouting body.
Detailed Description
In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
An embodiment of the utility model provides a slip casting reinforcement control system suitable for gully topography.
Please refer to fig. 1, fig. 2, fig. 3 and fig. 4, fig. 1 is a plan view of a grouting reinforcement control system suitable for gully topography in the embodiment of the present invention, fig. 2 is a plan view of a grouting pipe in the embodiment of the present invention, fig. 3 is a sectional view 1 of a grouting reinforcement control system suitable for gully topography in the embodiment of the present invention, fig. 4 is a sectional view 2 of a grouting reinforcement control system suitable for gully topography in the embodiment of the present invention, specifically as follows:
a grouting reinforcement control system adapted for use in gully terrain, comprising: the device comprises a downstream grouting hole (1), a side grouting hole (2), a middle grouting hole (3) and a grouting pipe (4); the downstream grouting holes (1) are arranged along the downstream of the gully of the site to be reinforced, the side grouting holes (2) are arranged along the two sides of the gully of the site to be reinforced, the middle grouting hole (3) is arranged in an area surrounded by the downstream grouting holes (1) and the side grouting holes (2), and the grouting pipe (4) is arranged in each of the downstream grouting holes (1), the side grouting holes (2) and the middle grouting holes (3). Grouting hole walls (6) are arranged outside each downstream grouting hole (1), each side grouting hole (2) or each middle grouting hole (3), and grouting bodies (7) are filled between the downstream grouting holes (1), the side grouting holes (2) and the middle grouting holes (3) and the grouting hole walls (6).
As shown in figure 1, the downstream grouting holes (1) are arranged in at least two rows in a quincunx manner. The middle grouting holes (3) are arranged in a plurality of rows in a square or quincunx shape.
The distance ranges between adjacent downstream grouting holes (1), between adjacent side grouting holes (2) and between adjacent middle grouting holes (3) are all 1.0-2.5 m.
The downstream grouting holes (1), the side grouting holes (2) and the middle grouting hole (3) are required to penetrate through the soil layer to be reinforced, and the thickness of the soil layer to be reinforced is not less than 0.5 m.
The grouting pipe (4) is a PVC pipe or a steel pipe, and the pipe diameter of the grouting pipe is not less than 42 mm; the side wall of the grouting pipe (4) is provided with a plurality of holes which are arranged in a quincunx shape, the hole diameter is not less than 2mm, and the hole distance is not more than 50 cm. As shown in figure 2, 7 holes are formed on the side wall of the grouting pipe (4).
And a soil covering layer is arranged above the downstream grouting holes (1), the side grouting holes (2) and the middle grouting hole (3), and the thickness of the soil covering layer is not less than 2 m.
The implementation steps of the grouting reinforcement control system suitable for the gully topography are as follows: the construction method comprises the steps of constructing the downstream grouting holes (1) at the downstream of the gully, then constructing the side grouting holes (2) at the two sides of the gully, and after the construction of the downstream grouting holes (1) and the side grouting holes (2) is finished and the consolidation time and the soil body pore blocking effect which are required by the design are achieved, constructing the middle grouting hole (3) between the downstream grouting holes (1) and the side grouting holes (2). During actual construction, a drilling machine is used for hole forming, then a grouting pipe (4) is placed downwards, and grouting is conducted finally. The downstream grouting holes (1) and the side grouting holes (2) are mainly used for plugging soil body pores. Grouting slurry of the downstream grouting holes (1) and the side grouting holes (2) can determine parameters such as the row number, the hole distance and the like of the grouting holes according to soil body pore characteristics or tests so as to achieve the effect of effectively plugging the pores of the peripheral soil body; meanwhile, measures such as increasing the viscosity of the slurry, adding an accelerating agent and the like can be taken to enhance the effect of sealing the pores of the soil body and shorten the solidification time. The middle grouting hole (3) needs to meet the design requirement during construction so as to achieve the effect of filling the soil body pores.
The utility model has the advantages that:
(1) the applicability is strong: the grouting reinforcement control system suitable for the gully topography is suitable for foundation reinforcement of relatively loose filling such as deep filling areas with gully topography, mountain-opening backfill areas and the like, and is also suitable for foundation grouting reinforcement of other loose soil layers with inclined strata.
(2) The reinforcing effect is good: the downstream grouting holes and the side grouting holes block the holes of the peripheral soil body, the slurry loss is prevented during the construction of the middle grouting holes, and meanwhile, the side faces of the grouting pipes are perforated, so that the grouting of the stratum which can be uniform in the vertical direction is improved, the reinforcement is more uniform and effective, and the construction control is facilitated.
(3) The comprehensive economic benefit is high: the downstream grouting holes and the side grouting holes are adopted to seal the peripheral holes of the soil body in the reinforcing range, so that the outflow of slurry to the downstream and the side can be effectively reduced, the consumption of slurry materials is reduced, the influence on the peripheral underground environment is reduced, the grouting time is reduced, and good economic benefits are brought.
The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The utility model provides a slip casting reinforcement control system suitable for gully topography which characterized in that: the method comprises the following steps: the device comprises a downstream grouting hole (1), a side grouting hole (2), a middle grouting hole (3) and a grouting pipe (4); the downstream grouting holes (1) are arranged along the downstream of the gully of the site to be reinforced, the side grouting holes (2) are arranged along the two sides of the gully of the site to be reinforced, the middle grouting hole (3) is arranged in an area surrounded by the downstream grouting holes (1) and the side grouting holes (2), and the grouting pipe (4) is arranged in each of the downstream grouting holes (1), the side grouting holes (2) and the middle grouting holes (3).
2. A grouting reinforcement control system for gully terrain as claimed in claim 1, wherein: the downstream grouting holes (1) are not less than two rows and are arranged in a quincunx shape.
3. A grouting reinforcement control system for gully terrain as claimed in claim 1, wherein: the middle grouting holes (3) are arranged in a square or quincunx shape.
4. A grouting reinforcement control system for gully terrain as claimed in claim 1, wherein: the distance ranges between adjacent downstream grouting holes (1), between adjacent side grouting holes (2) and between adjacent middle grouting holes (3) are all 1.0-2.5 m.
5. A grouting reinforcement control system for gully terrain as claimed in claim 1, wherein: the downstream grouting holes (1), the side grouting holes (2) and the middle grouting hole (3) are required to penetrate through the soil layer to be reinforced, and the thickness of the soil layer to be reinforced is not less than 0.5 m.
6. A grouting reinforcement control system for gully terrain as claimed in claim 1, wherein: the grouting pipe (4) is a PVC pipe or a steel pipe, and the pipe diameter is not less than 42 mm; the side wall of the grouting pipe (4) is provided with holes, the holes in the side wall of the grouting pipe (4) are arranged in a quincunx shape, the hole diameter is not smaller than 2mm, and the hole distance is not larger than 50 cm.
7. A grouting reinforcement control system for gully terrain as claimed in claim 1, wherein: and a soil covering layer is arranged above the downstream grouting holes (1), the side grouting holes (2) and the middle grouting hole (3), and the thickness of the soil covering layer is not less than 2 m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921450809.9U CN211200350U (en) | 2019-09-02 | 2019-09-02 | Grouting reinforcement control system suitable for gully terrain |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921450809.9U CN211200350U (en) | 2019-09-02 | 2019-09-02 | Grouting reinforcement control system suitable for gully terrain |
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| Publication Number | Publication Date |
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| CN211200350U true CN211200350U (en) | 2020-08-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921450809.9U Active CN211200350U (en) | 2019-09-02 | 2019-09-02 | Grouting reinforcement control system suitable for gully terrain |
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| CN (1) | CN211200350U (en) |
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2019
- 2019-09-02 CN CN201921450809.9U patent/CN211200350U/en active Active
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