CN-121976524-A - Grouting pipe pile and grouting device

Abstract

The application relates to a grouting pipe pile and a grouting device, wherein the grouting pipe pile comprises a pile body and a first blade, the pile body is provided with a first grouting channel, the first grouting channel is used for flowing slurry, the first blade is connected with the pile body, the first blade is provided with a second grouting channel and a slurry outlet, the first grouting channel is communicated with the second grouting channel, the second grouting channel is used for receiving slurry in the first grouting channel, and the slurry outlet is communicated with the second grouting channel so that the slurry in the second grouting channel can flow out through the slurry outlet. The application realizes the efficient and uniform consolidation of the shallow sand layer of the desert photovoltaic engineering through the cooperation between the grouting device and the grouting pipe pile, effectively resists strong wind erosion and vortex erosion of the desert, has the advantages of high mechanical degree, quick construction, wide adaptability and small environmental influence, solves the problem that the foundation is eroded due to the influence of wind erosion on the foundation of the traditional desert photovoltaic bracket, thereby influencing the structural safety and providing reliable guarantee for the safe and stable operation and maintenance of the desert photovoltaic power station.

Inventors

• XIAO HUA
• MAO YONG
• LV WENQIANG
• LI XIA
• LIANG JUNXIA
• LI RUI
• DONG WENFANG
• LI FUBING
• ZHANG ZAISHUN
• ZHOU JIANHUI
• LIAO JUN
• HUANG PING
• HE ZIYING
• LI ZHENGBING
• ZHOU LIHONG
• LI XIANG
• Jiao Yingshi

Assignees

• 中国水利水电第七工程局有限公司

Dates

Publication Date

20260505

Application Date

20260210

Claims (10)

1. 1. The utility model provides a slip casting tubular pile, its characterized in that, includes pile body and first blade, the pile body is equipped with first slip casting passageway, first slip casting passageway is used for supplying the thick liquid circulation, first blade connect in the pile body, just first blade is equipped with second slip casting passageway and outlet, first slip casting passageway with second slip casting passageway intercommunication, second slip casting passageway is used for receiving the thick liquid in the first slip casting passageway, outlet with second slip casting passageway intercommunication, the outlet is used for supplying in the second slip casting passageway the thick liquid flows.
2. 2.A grouting pile according to claim 1, wherein the bore of the outlet is progressively reduced in the direction of the slurry discharge of the slurry in the second grouting channel.
3. 3. A grouting pipe pile according to claim 1, characterised in that the grout outlet is provided in the edge of the blade.
4. 4. The grouting pile of claim 1, wherein the leading and trailing ends of the first blade are chamfered and/or the edges of the first blade are chamfered.
5. 5. A grouting pile as claimed in claim 1, wherein the first end of the pile body remote from the first blade is of closed drill bit-like construction.
6. 6. The grouting pipe pile of claim 5, further comprising a second blade, wherein the first blade and the second blade are arranged at intervals along the axial direction of the pile body, and the first blade and the second blade are arranged on the periphery of the pile body and extend spirally along the length direction of the pile body.
7. 7. A grouting pipe pile according to claim 6, characterised in that a barrier is provided in the pile body, the barrier being provided in the first grouting channel; the blocking piece is positioned between the first blade and the second blade so that the slurry flowing into the pile body can only flow out of the first blade, and/or the blocking piece is positioned between the second blade and the first end of the pile body, and a third grouting channel is arranged in the second blade and is communicated with the first grouting channel so that the slurry can flow into the third grouting channel and/or the second grouting channel respectively.
8. 8. A grouting device, characterized in that it is applied to the grouting pile according to any one of claims 1 to 7, and comprises: a grouting pipe connected with the pile body and used for injecting the slurry into the first grouting channel, and And the hydraulic valve assembly is arranged on the grouting pipe.
9. 9. The grouting device according to claim 8, the grouting device is characterized by further comprising: the first connecting piece is arranged between the grouting pipe and the hydraulic valve and is used for connecting the grouting pipe and the hydraulic valve; The second connecting piece is arranged at one end of the hydraulic valve, which is away from the grouting pipe, and is used for connecting a drilling machine; The sealing piece is arranged at one end of the grouting pipe, which is away from the hydraulic valve, and is used for limiting the overflow of the slurry from the gap between the grouting pipe and the pile body.
10. 10. The grouting apparatus of claim 8, wherein the hydraulic valve assembly comprises a grouting valve sleeve, a valve body and a valve core, the grouting valve sleeve is connected with the grouting pipe, the valve body is connected with the grouting valve sleeve, the valve core is arranged in the valve body, and the valve core is used for limiting backflow of the slurry in the valve body.

Description

Grouting pipe pile and grouting device Technical Field The application relates to the technical field of pile foundation pouring, in particular to a grouting pipe pile and a grouting device. Background Photovoltaic power generation is currently in a large-scale development and application stage as an efficient and stable clean energy source. The desert area has the natural advantages of long sunshine time and high illumination intensity, and is one of core areas for developing photovoltaic energy. However, the desert area is accompanied with strong wind weather all the year round, the strong wind erosion easily causes the phenomenon of surface vortex cavitation, the surface structure of the photovoltaic power station is obviously destroyed, and the safe operation and maintenance of the desert photovoltaic power station are restricted for a long time. At present, a spiral drilling machine is adopted in the industry to drill into a sandy soil layer with a spiral steel pipe pile (containing blades), so that the stability of a photovoltaic bracket foundation is guaranteed. According to analysis, the problems of undercut and the like of the spiral steel pile mainly occur due to the following reasons. The wind erosion influence is that the desert photovoltaic implementation area is mainly a flowing sand dune, southwest wind is prevailing throughout the year, the main harmful wind is northwest wind, the wind force is strong and can reach 6-8 levels, the wind force is strong and has long duration, a large amount of sand particles are carried to form wind and sand flows, wind erosion disasters are further formed, and the wind erosion sand burying disasters are mainly expressed; The earth surface sand is loose, the cohesive force is low, the earth surface sand is easy to strip and transport by wind force, sand particles (with the particle size of 0.1-1 mm) suspended in the air have stronger kinetic energy under the action of high-speed wind force, and physical impact is easy to be caused on the surface of the pile body and surrounding sand; The wind and sand flow flushes along the direction of the installed component and the junction of the wind and sand flow and the soil to take away the fine granular soil, so that a cavity (etching pit) is gradually formed, and the lateral supporting force of the soil body around the pile is weakened; vortex effect, namely, the windward side and the leeward side of the pile body form local vortex due to air flow separation, so that undercut action of sand grains on sand around the pile foundation is enhanced. Meanwhile, the pile bodies of the two types of the concrete filling pile and the precast pile are adopted. The concrete precast pile has the problems of complex process flow, strict operation requirement, long construction period and the like, and has extremely high construction difficulty in a low-temperature environment in winter, and the concrete precast pile has the defects of high cost, strong vibration and noise in the construction process, easiness in surrounding ground rising and the like, and has additional influence on the fragile ecological environment of the desert. Disclosure of Invention In view of the above, it is necessary to provide a grouting pile. The first aspect of the application provides a grouting pipe pile, which comprises a pile body and first blades, wherein the pile body is provided with a first grouting channel, the first grouting channel is used for allowing slurry to circulate, the first blades are connected with the pile body, the first blades are provided with a second grouting channel and a slurry outlet, the first grouting channel is communicated with the second grouting channel, the second grouting channel is used for receiving slurry in the first grouting channel, and the slurry outlet is communicated with the second grouting channel so that the slurry in the second grouting channel can flow out through the slurry outlet. In the grouting pipe pile, the second grouting channel is arranged in the blade, so that the slurry flowing into the pile body can flow into the second grouting channel from the pile body and flow out of the grouting channel through the slurry outlet formed in the blade, in the process of screwing in the grouting pipe pile, the slurry flowing out of the slurry outlet can be sprayed out under the action of centrifugal force generated by rotation of the grouting pipe pile, the sprayed slurry can cut and stir soil around the pile body, and finally, a mixture of solidified slurry and sandy soil is formed, and the bond between the pile body and the soil body can be effectively enhanced, so that the stability of a pile foundation finally formed is higher. In one embodiment, the bore of the grout outlet is tapered in the direction of grout outlet of the grout in the second grouting channel. In one embodiment, the slurry outlet is provided at the edge of the blade. In one embodiment, the leading and trailing ends of the first vane