A kind of sap concrete anti-sliding expansion pile for slope reinforcement and its construction method
A technology for concrete and anti-sliding piles, which is used in excavation, infrastructure engineering, construction, etc. to improve stability, improve safety and stability, and avoid soil sliding.
Active Publication Date: 2020-12-08
HOHAI UNIV
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Problems solved by technology
Mainly applicable to slope treatment engineering
Method used
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[0020] The invention proposes a sap concrete anti-sliding expansion pile for slope reinforcement, and its overall structure includes four parts: an anti-sliding pile cap, a sap concrete expansion section, a waterproof partition, and a rigid hollow pile body.
[0021] The anti-slide pile cap 1 in the structure is a blunt conical metal structure, which is added to the end of the rigid hollow pile body 5, so that it is smoother to put the sap concrete anti-slide expansion pile after drilling;
[0022] The sap concrete expansion section 2 in the structure is a cylindrical structure with hollow walls and windows. It is set outside the rigid hollow pile body, and a sap concrete expansion section 2 is set at every other section. The inside of the sap concrete expansion section 2 is filled with sap Superabsorbent resin particles and mixed plain concrete are mixed dry powder, and the hollowed-out window parts of the cylinder wall are covered with flexible water-permeable geotextile 3 to...
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The invention provides an SAP (Super Absorbent Polymer) concrete anti-slide expansion pile for slope reinforcement and a construction method thereof. The SAP concrete anti-slide expansion pile consists of an anti-slide pile cap, an SAP concrete expansion section, a waterproof clapboard and a rigid hollow pile body. Holes are drilled in advance in a slope section needing anti-slide reinforcement; the SAP concrete anti-slide expansion pile is embedded in the drill hole; water is injected into the anti-slide expansion pile through the rigid hollow pile body; the SAP concrete expansion section, filled with a concrete dry powder mixture mixed with SAP particles, expands in the water and is extruded out, an anchoring section is formed in the soil after solidification; water is injected into theSAP concrete expansion sections on the anti-slide expansion pile to expand, and a plurality of anchoring parts are formed after solidification to improve the anti-slide stability of the soil. A physical expansion method is utilized to strengthen the connection between the soil, so that sliding resistance of a slope is enhanced, and accidents such as soil sliding, collapse and the like caused by slope excavation are avoided. The SAP concrete anti-slide expansion pile can be applied to the excavation and supporting engineering of the slope and improves the safety and stability of the slope.
Description
technical field [0001] The invention relates to a SAP concrete anti-sliding expansion pile used for slope reinforcement and a construction method thereof. The invention consists of an anti-slide pile cap, a sap concrete expansion section, a waterproof partition and a rigid hollow pile body. Pre-drill holes in the slope section that needs anti-sliding reinforcement, embed sap concrete anti-sliding expansion piles in the drilled holes, inject water into the anti-sliding expansion piles through the rigid hollow pile body, and fill the sap concrete expansion section with mixed The concrete dry powder mixture of sap particles will expand and extrude when exposed to water. After solidification, anchor sections will be formed in the soil. Multiple sap concrete expansion sections on the anti-slip expansion pile will be injected with water to expand, and multiple anchors will be formed after solidification. To improve the anti-sliding stability of slope soil. The invention belongs to...
Claims
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IPC IPC(8): E02D17/20E02D19/12
CPCE02D17/207E02D19/12
Inventor 张飞周源高玉峰戴光宇何乃福舒爽
Owner HOHAI UNIV