CN111549759A - Cutting grouting stirring device - Google Patents
Cutting grouting stirring device Download PDFInfo
- Publication number
- CN111549759A CN111549759A CN202010465799.7A CN202010465799A CN111549759A CN 111549759 A CN111549759 A CN 111549759A CN 202010465799 A CN202010465799 A CN 202010465799A CN 111549759 A CN111549759 A CN 111549759A
- Authority
- CN
- China
- Prior art keywords
- drill bit
- rod
- stirring
- cutting
- spoiler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
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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
- E02D3/126—Consolidating by placing solidifying or pore-filling substances in the soil and mixing by rotating blades
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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
- E02D15/02—Handling of bulk concrete specially for foundation or hydraulic engineering purposes
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D7/00—Methods or apparatus for placing sheet pile bulkheads, piles, mouldpipes, or other moulds
- E02D7/24—Placing by using fluid jets
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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 cutting grouting stirring device, which comprises a drill bit rod, a drill bit and a stirring blade, wherein the drill bit rod is provided with a guniting channel and a nozzle, the drill bit is arranged at one end of the drill bit rod and is provided with a cutting tool bit, the stirring blade is arranged on the drill bit rod, a spoiler is also arranged between the drill bit and the stirring blade on the drill bit rod, and the spoiler moves up and down along with the drill bit rod without rotating along with the drill bit rod.
Description
Technical Field
The invention relates to a foundation reinforcing construction device, in particular to a cutting grouting stirring device.
Background
The cement stirring foundation strengthening is one method of strengthening saturated soft clay foundation, and the cement is used as curing agent, and the cutting, grouting and stirring apparatus is used to forcedly stir cement and foundation soil and the curing agent and the foundation soil produce a series of physical and chemical reactions to form the foundation with integrity, water stability and certain strength. The cutting grouting stirring device forcibly mixes the cement paste pressed into the soft soil with the surrounding soft soil by using a rotating stirring blade to form a mud reinforcing body.
The current cutting grouting stirring device comprises: single axis, double axis, three axis and five axis. The four distinguishing features are that the number and arrangement of auger holes used are different: only one spiral stirring drilling tool is used for a single shaft; the double shaft uses two spiral stirring drilling tools; three spiral stirring drilling tools are used for three shafts, wherein two drilling rods supply slurry, and one drilling rod supplies gas; five spiral stirring drilling tools are used in five shafts, wherein three drilling rods supply slurry, and two drilling rods supply gas.
In essence, cement-mixed foundation stabilization is a cement-mixed reinforcement formed by forcibly mixing cement paste pressed into foundation soil with surrounding foundation soil with a mixing blade of a cutting, grouting and mixing device. In actual construction, spiral uneven reinforcement bodies are formed by ground soil and cement paste cut by a single-shaft and double-shaft cutting and stirring device under the action of a rotating stirring blade, and a gas supply drilling tool added by three shafts and five shafts utilizes the phenomenon that the spiral unevenness of the ground soil and the cement paste is damaged by stirring of compressed gas, so that the uniformity of the reinforcement bodies cannot be completely improved, and the reinforcement bodies are loosened due to trapped gas.
Disclosure of Invention
The invention aims to solve the technical problem of providing a cutting grouting stirring device, which adopts the technical scheme that: the utility model provides a cutting slip casting agitating unit, it is including the drill bit pole that is provided with whitewashing passageway and nozzle, arranges the drill bit that has the cutting tool bit of drill bit pole one end in, sets up stirring vane on the drill bit pole, its characterized in that: and a spoiler is also arranged between the drill bit and the stirring blade on the drill bit rod, and moves up and down along with the drill bit rod without rotating along with the drill bit rod.
The invention is further characterized in that:
the spoiler comprises spoiler blades, a wear-resistant ring and a rib plate, wherein the wear-resistant ring is sleeved on the drill rod and is in clearance fit with the drill rod.
The length of the stirring plate is greater than that of the drill bit and that of the stirring blades.
And the drill rod is provided with a limiting device for limiting the up-and-down movement of the wear-resistant ring.
The invention has the beneficial effects that:
because the spoiler is also arranged between the drill bit and the stirring blade on the drill bit rod in the cutting grouting stirring device, the spoiler moves up and down along with the drill bit rod without rotating along with the drill bit rod, in the process of downward cutting grouting stirring, a drill bit of the cutting grouting stirring device rotates and presses downward, cement grout enters a grout spraying channel 3 in the drill bit rod and is sprayed out through a nozzle 2, a cutting cutter head on the drill bit damages foundation soil, in the process of continuous damage of the foundation soil, the spoiler 4 only presses downward and does not rotate, the flowing direction of fluid formed when the drill bit rotates is disturbed, the cement grout and the foundation soil are fully stirred and mixed, and cement soil columnar mixed liquid with a certain diameter is formed in the soil; in the lifting cutting and grouting stirring process, the drill bit is lifted while rotating reversely, cement slurry enters a slurry spraying channel 3 in a drill bit rod and is sprayed out through a nozzle 2, stirring blades 5 perform secondary stirring on cement-soil columnar mixed liquid, the stirring blades perform continuous stirring, a stirring spoiler 4 is lifted and does not rotate, the flowing direction of fluid formed when the stirring blades rotate is disturbed, the cement slurry and the foundation soil are fully stirred and mixed, a cement-soil columnar solidified body with a certain diameter is formed in the soil, the cutting grouting stirring device performs downward cutting and grouting stirring process and lifting cutting and grouting stirring process, the cement slurry and the foundation soil can be uniformly stirred, and the quality of cement stirring foundation reinforcement is guaranteed.
Drawings
FIG. 1 is a front view of the structure of an embodiment of the present invention;
FIG. 2 is a side view of the embodiment shown in FIG. 1;
fig. 3 is a schematic cross-sectional view of the spoiler of fig. 1.
Detailed Description
The present invention will be described in further detail below with reference to the accompanying drawings and embodiments thereof.
Referring to fig. 1, 2 and 3, a cutting grouting mixing device comprises a drill bit rod 6 provided with a guniting passage 3 and a nozzle 2, a drill bit 1 with a cutting bit 7 disposed at one end of the drill bit rod 6, and a mixing blade 5 disposed on the drill bit rod 6, wherein: a spoiler 4 is further arranged on the drill bit rod between the drill bit 1 and the stirring blades 5, and the spoiler 4 moves up and down along with the drill bit rod 6 without rotating along with the drill bit rod.
Because the spoiler 4 is arranged between the drill bit 1 and the stirring blade 5 on the drill bit rod 6 in the cutting grouting stirring device, the spoiler 4 moves up and down along the drill bit rod 6 without rotating along the drill bit rod 6, in the process of downward cutting grouting stirring, the drill bit 1 of the cutting grouting stirring device rotates and presses downward, cement slurry enters the slurry spraying channel 3 in the drill bit rod 6 and is sprayed out through the nozzle 2, the cutting tool bit 7 on the drill bit 1 destroys foundation soil, in the process of continuous destruction of the foundation soil, the spoiler 4 only presses downward and does not rotate, the flowing direction of fluid formed when the drill bit rotates is disturbed, the cement slurry and the foundation soil are fully stirred and mixed, and cement soil columnar mixed liquid with a certain diameter is formed in the soil; in the promotion cutting benefit thick liquid stirring in-process, 1 limit antiport of drill bit promotes, the whitewashing passageway 3 that the cement thick liquid got into in the drill bit pole passes through nozzle 2 blowout, stirring vane 5 carries out the secondary stirring to the soil cement column mixture, in the process of 5 continuous stirring of stirring vane, stirring spoiler 4 only promotes not rotatory, the fluid flow direction that forms when disturbing stirring vane 5 gyration, make the cement thick liquid and the abundant stirring of foundation soil mix, form the soil cement column consolidation body of certain diameter in soil, cutting slip casting agitating unit is through pushing down cutting slip casting stirring process and promotion cutting benefit thick liquid stirring process like this, grout can reach the stirring with the foundation soil, thereby the reinforced quality of cement mixing ground has been guaranteed.
In this embodiment, the spoiler 4 includes the spoiler blade 41, the wear-resisting ring 42 and the rib plate 43, wherein the wear-resisting ring 42 is sleeved on the drill bit rod 6 and is in clearance fit with the drill bit rod 6, and the length of the stirring spoiler 4 is greater than the length of the drill bit 1 and the length of the stirring blade 5, so that the uniform stirring of the cement slurry and the foundation soil is facilitated.
In practical application, in order to ensure that the spoiler 4 moves up and down along the drill bit rod without rotating along the drill bit rod 6, a limiting device (not shown in the figure) for limiting the up-and-down movement of the wear-resisting ring is arranged on the drill bit rod 6.
While the invention has been described with respect to the foregoing technical disclosure and features, it will be understood that various changes and modifications in the above structure, including combinations of features disclosed herein either individually or in any combination as is evident to one skilled in the art, may be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (4)
1. The utility model provides a cutting slip casting agitating unit, it is including the drill bit pole that is provided with whitewashing passageway and nozzle, arranges the drill bit that has the cutting tool bit of drill bit pole one end in, sets up stirring vane on the drill bit pole, its characterized in that: and a spoiler is also arranged between the drill bit and the stirring blade on the drill bit rod, and moves up and down along with the drill bit rod without rotating along with the drill bit rod.
2. The cutting grouting stirring device according to claim 1, characterized in that: the spoiler comprises spoiler blades, a wear-resistant ring and a rib plate, wherein the wear-resistant ring is sleeved on the drill rod and is in clearance fit with the drill rod.
3. The cutting grouting stirring device according to claim 2, characterized in that: the length of the spoiler is greater than that of the drill bit and that of the stirring blade.
4. A cutting slip casting apparatus according to claim 2 or claim 3, wherein: and the drill rod is provided with a limiting device for limiting the up-and-down movement of the wear-resistant ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010465799.7A CN111549759A (en) | 2020-05-28 | 2020-05-28 | Cutting grouting stirring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010465799.7A CN111549759A (en) | 2020-05-28 | 2020-05-28 | Cutting grouting stirring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111549759A true CN111549759A (en) | 2020-08-18 |
Family
ID=72002214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010465799.7A Pending CN111549759A (en) | 2020-05-28 | 2020-05-28 | Cutting grouting stirring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111549759A (en) |
-
2020
- 2020-05-28 CN CN202010465799.7A patent/CN111549759A/en active Pending
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