CN208650033U - Shallow covering karst strata ruggedized construction - Google Patents
Shallow covering karst strata ruggedized construction Download PDFInfo
- Publication number
- CN208650033U CN208650033U CN201821196161.2U CN201821196161U CN208650033U CN 208650033 U CN208650033 U CN 208650033U CN 201821196161 U CN201821196161 U CN 201821196161U CN 208650033 U CN208650033 U CN 208650033U
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- steel sleeve
- sleeve
- reinforced plastic
- glass reinforced
- solution cavity
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Abstract
The utility model discloses shallow covering karst strata ruggedized constructions, for passing through the spiral-digging pore filling pile construction of solution cavity in shallow covering karst strata, include: steel sleeve, be vertically embedded on Upper Plate of Karst Cave, the upper end of the steel sleeve is concordant or the earth's surface of slightly higher than overlying rock；Glass reinforced plastic sleeve, outer diameter are slightly less than the internal diameter of the steel sleeve, are coaxially arranged in the steel sleeve, and the glass reinforced plastic sleeve passes through solution cavity, are fixed on lower part supporting course；Grouting layer is set to the gap between steel sleeve and glass reinforced plastic sleeve.The utility model is directed to large-scale solution cavity, sets simply, low cost saves the construction time.
Description
Technical field
The utility model relates to the realm of building construction.More specifically, the utility model relates to a kind of shallow covering karst regions
Layer ruggedized construction.
Background technique
It needs the problem of handling karst hole, generally to penetrate using cast-in-situ bored pile carrying out engineering construction on karst strata
Karst hole is supported in stable rock stratum, and conventional construction is aided with mud using reacting cycle convolution drilling or percussion drilling pore-forming
Retaining wall, for crack in limestone and small hole, the fillers such as throwing clay slabstone are simultaneously tamped, at the spillage of filling borehole periphery.
Due to solution cavity spillage, a large amount of mud need to be consumed, slurries leakage causes underground environmental pollution, while mud conditioning is also the difficulty of construction
Point.
Utility model content
The purpose of the utility model is to provide shallow covering karst strata ruggedized constructions to set simply, make for large-scale solution cavity
Valence is low, saves the construction time.
In order to realize these purposes and other advantages according to the present utility model, provides shallow covering karst strata and reinforce knot
Structure, for passing through the spiral-digging pore filling pile construction of solution cavity in shallow covering karst strata, comprising:
Steel sleeve is vertically embedded on Upper Plate of Karst Cave, and the upper end of the steel sleeve is concordant or slightly higher than overlying rock
Earth's surface；
Glass reinforced plastic sleeve, outer diameter are slightly less than the internal diameter of the steel sleeve, are coaxially arranged in the steel sleeve, described
Glass reinforced plastic sleeve passes through solution cavity, is fixed on lower part supporting course；
Grouting layer is set to the gap between steel sleeve and glass reinforced plastic sleeve.
Preferably, the medial surface at the top of the steel sleeve is fixed with hoop of putting more energy into, and the width of the hoop of putting more energy into is 5cm.
Preferably, the outer diameter of the steel sleeve is 20-30cm bigger than the stake diameter of bored concrete pile, and the wall thickness of the steel sleeve is
10-12mm。
Preferably, further include multiple injected holes, be vertically installed in around the steel sleeve, filling in the injected hole
There is slurry, the lower end of the injected hole is close to Upper Plate of Karst Cave.
The utility model is include at least the following beneficial effects: the shallow covering karst strata ruggedized construction in the application uses glass
Glass steel sleeve guarantees that pile body is complete regardless of solution cavity size cases are controllable.Cost is saved compared to clay filling, concrete fill method.It is logical
Crossing glass reinforced plastic sleeve can guarantee pile body integrity, to improve a stress and power transmission effect is good.
The further advantage, target and feature of the utility model will be partially reflected by the following instructions, and part will also pass through
Research and practice to the utility model and be understood by the person skilled in the art.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of shallow covering karst strata ruggedized construction；
Fig. 2 is the setting schematic diagram of injected hole.
Appended drawing reference:
1- steel sleeve, 2- glass reinforced plastic sleeve, 3- grouting layer, 4- injected hole, 101- overlying rock, 102- solution cavity, under 103-
Portion's supporting course.
Specific embodiment
The following describes the utility model in further detail with reference to the accompanying drawings, to enable those skilled in the art referring to explanation
Book text can be implemented accordingly.
In the description of the present invention, term " transverse direction ", " longitudinal direction ", "upper", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom", "inner", "outside" be orientation based on the figure or
Positional relationship is merely for convenience of describing the present invention and simplifying the description, and is not the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.
As shown in Figure 1, the utility model provides shallow covering karst strata ruggedized construction, for passing through shallow covering karst strata
The spiral-digging pore filling pile construction of middle solution cavity 102, the shallow structure for covering karst strata: upper part is overlying rock 101, middle part is
Large-scale solution cavity 102, lower part are lower part supporting course 103.
Ruggedized construction includes:
Steel sleeve 1 is vertically embedded on 102 top plate of solution cavity, and the upper end of the steel sleeve 1 concordantly or on being slightly higher than is covered
The earth's surface of rock stratum 101；The outer diameter of the steel sleeve 1 is 20-30cm bigger than the stake diameter of bored concrete pile, and the wall thickness of the steel sleeve 1 is 10-
12mm。
Glass reinforced plastic sleeve, outer diameter are slightly less than the internal diameter of the steel sleeve 1, are coaxially arranged in the steel sleeve 1, institute
Glass reinforced plastic sleeve 2 is stated across solution cavity 102, is fixed on lower part supporting course 103, for glass reinforced plastic sleeve 2 due to light weight, intensity is big, holds
It easily sets, reduces the generation in crack, to reduce the time that fracture punishment is spent.
Grouting layer 3 is set to the gap between steel sleeve 1 and glass reinforced plastic sleeve 2.Grouting layer 3 uses water ash mass ratio
It is made of 0.5~0.6 cement slurry.
In the above-mentioned technical solutions, to include: 1, steel sleeve 1 be made of rolling steel pipe the construction procedure of ruggedized construction, is led to
It crosses 25t crane to sling steel sleeve 1,1 bottom of steel sleeve is carried out by positioning centering using guide pile, adjusts the verticality of steel sleeve 1,
Steel sleeve 1 is placed in steel sleeve 1 down toward designated depth, then with vibrohammer with digging machine cooperation crane, carries out vibration-sunk,
The verticality of steel sleeve 1 should be adjusted during follow-up in time, the oscillation point of vibration hammer should repeatedly transfer, under guaranteeing that steel pile casting is uniform
It is sink to 102 top of solution cavity.2, churning driven continues to creep into, and is then implanted into glass reinforced plastic sleeve in 102 hollow section of solution cavity, will using crane
Glass reinforced plastic sleeve is sling, since fiber glass reinforced plastic cover length of tube is longer, every lower 6m, then with two theodolites in two vertical planes
Detection gradient, when glass reinforced plastic sleeve sinks down into 102 bottom of solution cavity, is assisted down to adjust at any time using vibration hammer
It puts, until glass reinforced plastic sleeve squeezes into soil body certain depth.3, the gap progress slip casting between glass reinforced plastic sleeve and steel sleeve 1 is filled out
Reinforcing is filled, grouting layer 3 is formed, ruggedized construction can be realized, it is glutinous that the ruggedized construction of the application is not necessarily to the throwing in large-scale solution cavity 102
The fillers such as native slabstone can greatly reduce the generation in crack for mud off structure, improve construction efficiency, reduce
Operating expenses.After the completion of ruggedized construction, steel reinforcement cage and grouting pile-forming can be transferred in glass reinforced plastic sleeve 2.
In another technical solution, the medial surface at the top of the steel sleeve 1 is fixed with hoop of putting more energy into, the hoop of putting more energy into
Width is 5cm, after the setting for hoop of putting more energy into, increases the bonding strength between grouting layer 3 and steel sleeve 1 and glass reinforced plastic sleeve 2.
In another technical solution, as shown in Fig. 2, further including multiple injected holes 4, it is vertically installed in the steel sleeve
Around 1, it is filled with slurry in the injected hole 4, the lower end of the injected hole 4 is close to 102 top plate of solution cavity.Slurry uses water grey matter
Amount ratio is made of 0.5~0.6 cement slurry.It prevents 102 top of solution cavity around stake holes loose, improves integral strength.
It is not only in the description and the implementation although the embodiments of the present invention have been disclosed as above
Listed utilization, it can be applied to various fields suitable for the present invention completely, for those skilled in the art,
Other modifications may be easily implemented, therefore without departing from the general concept defined in the claims and the equivalent scope, this reality
It is not limited to specific details and legend shown and described herein with novel.
Claims (4)
1. shallowly covering karst strata ruggedized construction, the spiral-digging pore bored concrete pile for passing through solution cavity in shallow covering karst strata is applied
Work characterized by comprising
Steel sleeve is vertically embedded on Upper Plate of Karst Cave, and the upper end of the steel sleeve is concordant or the ground of slightly higher than overlying rock
Table；
Glass reinforced plastic sleeve, outer diameter are slightly less than the internal diameter of the steel sleeve, are coaxially arranged in the steel sleeve, the glass
Steel sleeve passes through solution cavity, is fixed on lower part supporting course；
Grouting layer is set to the gap between steel sleeve and glass reinforced plastic sleeve.
2. covering karst strata ruggedized construction as described in claim 1 shallow, which is characterized in that the top of the steel sleeve it is interior
Side is fixed with hoop of putting more energy into, and the width of the hoop of putting more energy into is 5cm.
3. shallow covering karst strata ruggedized construction as claimed in claim 2, which is characterized in that the outer diameter of the steel sleeve is than filling
The big 20-30cm of stake diameter of stake is infused, the wall thickness of the steel sleeve is 10-12mm.
4. shallow covering karst strata ruggedized construction as described in claim 1, which is characterized in that it further include multiple injected holes,
It is vertically installed in around the steel sleeve, slurry is filled in the injected hole, the lower end of the injected hole is close to Upper Plate of Karst Cave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821196161.2U CN208650033U (en) | 2018-07-26 | 2018-07-26 | Shallow covering karst strata ruggedized construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821196161.2U CN208650033U (en) | 2018-07-26 | 2018-07-26 | Shallow covering karst strata ruggedized construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208650033U true CN208650033U (en) | 2019-03-26 |
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ID=65786413
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821196161.2U Active CN208650033U (en) | 2018-07-26 | 2018-07-26 | Shallow covering karst strata ruggedized construction |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997620A (en) * | 2020-07-28 | 2020-11-27 | 中铁第四勘察设计院集团有限公司 | Grouting construction system and method for karst collapse area |
-
2018
- 2018-07-26 CN CN201821196161.2U patent/CN208650033U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111997620A (en) * | 2020-07-28 | 2020-11-27 | 中铁第四勘察设计院集团有限公司 | Grouting construction system and method for karst collapse area |
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