Arched pile-distributed anti-sliding protective structure retaining wall
The arched pile anti-slide retaining wall, which combines a top cap beam and a combination of cast-in-place piles and jet grouting piles in the middle, forms a stable arched structure. This solves the problems of poor performance and high cost of traditional support methods in the protection of landslides in deep soil layers, and achieves safe and economical construction results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUIZHOU DINGSHENG GEOTECHNICAL ENG CO LTD
- Filing Date
- 2026-01-14
- Publication Date
- 2026-05-12
AI Technical Summary
Traditional single-row and double-row pile support methods are ineffective or too costly in the protection of landslides in deep soil layers, and cannot be implemented in small spaces, making it difficult to meet the requirements of safety, economy, and construction feasibility.
An arched pile retaining wall with anti-sliding protection structure is adopted, including a top connecting cap beam, a middle cast-in-place pile and jet grouting piles between the cast-in-place piles, forming a ring curtain, which is anchored into the bottom moderately weathered bedrock to achieve overall stability against sliding, overturning, bending and shearing, and guides groundwater out.
It improves the retaining wall's resistance to sliding, overturning, bending, and shearing, ensuring the safety of the structure, reducing construction costs, and adapting to the construction needs of confined spaces.
Smart Images
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Abstract
Description
Technical Field
[0001] This invention relates to the field of slope anti-slide protection engineering for highways, municipal roads, city squares, industrial plants, airports, etc., and in particular to an arched pile anti-slide protection structure retaining wall. Background Technology
[0002] With the development of urban and rural construction in my country, it is often necessary to protect houses that have already shifted on existing deep soil landslides to prevent collapse and damage. Due to limitations such as construction funds, land acquisition scope, and surrounding environment, traditional methods often require slope protection using single-row retaining piles with anchor cables or double-row retaining piles. However, deep soil layers and long, ineffective anchor cables, coupled with the high cost and limited space of double-row retaining piles, make implementation difficult. Traditional retaining wall structures cannot meet the necessary conditions of safety, economy, and construction feasibility, thus necessitating a composite retaining wall structure that is both safe and economical, and easy to construct. Summary of the Invention
[0003] In view of the problems mentioned in the background art above, the purpose of this invention is to provide an arched pile anti-sliding protective retaining wall. An arched pile retaining wall structure for anti-sliding protection is disclosed. This composite retaining wall is installed within the foundation and includes a top connecting beam, central cast-in-place piles, and jet grouting piles between the cast-in-place piles. The central cast-in-place piles, the jet grouting piles between the cast-in-place piles, the top connecting beam, and the moderately weathered bedrock at the bottom form an integral stable structure, providing overall stability against sliding, overturning, bending, and shearing. The cast-in-place piles and jet grouting piles form a ring-shaped curtain to guide groundwater out from both sides, preventing direct erosion of the protected structure. Furthermore, depending on the geological conditions, the bottom of the central cast-in-place pile shall be anchored into the moderately weathered bedrock at the bottom for no less than 5m. Further specified, the jet grouting piles between the central cast-in-place piles form an annular curtain that extends at least 1 meter into the bottom moderately weathered bedrock. Furthermore, the length of the jet grouting curtain between the central cast-in-place piles must cover the protected building to truly achieve protective functions such as soil retention, water diversion, and pressure reduction. The present invention has the following beneficial effects: 1. This invention, through structural optimization design, directly transfers the vertical and horizontal loads on the ground to the underlying stable bedrock strata via a central cast-in-place pile + cap beam composite structure. 2. The central cast-in-place piles, the jet grouting piles between the cast-in-place piles, the top connecting capping beam, and the bottom moderately weathered bedrock form an overall stable structure, which plays a role in overall stability such as anti-sliding, anti-overturning, anti-bending, and anti-shear. 3. The central cast-in-place piles, the jet grouting piles between the cast-in-place piles, and the top connecting capping beam form a ring shape on the plane, creating an arch structure that improves the retaining wall's resistance to sliding, overturning, bending, and shearing. Attached Figure Description The present invention can be further illustrated by the non-limiting embodiments given in the accompanying drawings; Figure 1 This is a schematic diagram of the structure of an arched pile anti-sliding protective retaining wall according to Embodiment 1 of the present invention; Figure 2 This is a front view of the structure of an arched pile anti-sliding protective retaining wall according to Embodiment 1 of the present invention; Figure 3 This is a structural side view of an embodiment 1 of the arched pile anti-sliding protection structure retaining wall of the present invention. The symbols for the main components are explained below: 2. Top connecting crown beam, 1. Middle cast-in-place pile, 3. Jet grouting pile between cast-in-place piles, 4. Building requiring protection, 5. Soil layer, 6. Strongly weathered rock layer, 7. Bottom moderately weathered rock layer, 8. Drainage direction. Detailed Implementation To enable those skilled in the art to better understand the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings and embodiments. Example 1 An arched pile anti-sliding retaining wall, wherein the combined structure retaining wall is set in the foundation, characterized in that it includes a top connecting cap beam (2), a middle cast-in-place pile (1), and jet grouting piles (3) between the cast-in-place piles. The middle cast-in-place pile (1), the jet grouting piles (3) between the cast-in-place piles and the top connecting cap beam (2) form an annular structure in the plane, forming an arched overall stable structure, which plays a role in overall stability such as anti-sliding, anti-overturning, anti-bending, and anti-shear; the middle cast-in-place pile (1) and the jet grouting piles (3) between the cast-in-place piles form an annular curtain to guide groundwater to drain from both sides, avoiding direct scouring of the protective structure. Among them, the bottom of the central cast-in-place pile (1) is anchored into the bottom weathered bedrock (7) for no less than 5m. Among them, the jet grouting piles (3) between the central cast-in-place piles (1) and the cast-in-place piles form an annular curtain that extends into the bottom moderately weathered bedrock (7) by no less than 1m. Among them, the length of the curtain of jet grouting piles (3) between the central cast-in-place piles (1) and the cast-in-place piles needs to cover the protective building (4), so as to truly play the protective role of retaining soil, diverting water and reducing pressure. The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in the present invention should still be covered by the claims of the present invention.
Claims
1. An arched pile anti-sliding retaining wall, wherein the composite retaining wall is installed within the foundation, characterized in that: It includes a top connecting crown beam (2), a middle cast-in-place pile (1), and jet grouting piles (3) between the cast-in-place piles. The middle cast-in-place pile (1), the jet grouting piles (3) between the cast-in-place piles and the top connecting crown beam (2) form a ring in the plane, forming an arch-shaped overall stable structure, which plays a role in overall stability such as anti-slip, anti-overturning, anti-bending, and anti-shear; the middle cast-in-place pile (1) and the jet grouting piles (3) between the cast-in-place piles form a ring curtain to guide groundwater to drain from both sides, avoiding direct scouring of the protected building (4).
2. The arched pile anti-sliding retaining wall according to claim 1, characterized in that: According to geological conditions, the bottom of the central cast-in-place pile (1) is anchored into the bottom moderately weathered bedrock (7) for no less than 5m.
3. The arched pile anti-sliding retaining wall according to claim 1, characterized in that: The central grouting pile (1) and the jet grouting pile (3) between the grouting piles form an annular curtain that extends into the bottom moderately weathered bedrock (7) by no less than 1m.
4. An arched pile anti-sliding retaining wall according to claim 1 or 2, characterized in that: The length of the annular curtain formed by the central cast-in-place pile (1) and the jet grouting pile (3) between the cast-in-place piles covers the building (4) that needs protection, and truly plays a protective role such as retaining soil, diverting water and reducing pressure.