Hackling type sliding surface locking structure and construction method
By arranging a comb-type sliding surface locking structure on the sliding surface of the landslide, the problem of managing large and medium-sized landslides has been solved, achieving effective landslide management and cost reduction. The structure is compact and the force transmission is clear.
Patent Information
- Application Number
- CN202610280301.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-09
- Publication Date
- 2026-05-19
AI Technical Summary
Large and medium-sized landslides have large residual sliding forces, and traditional anti-slide pile structures are costly, bulky, and cannot effectively manage giant landslides.
A comb-type sliding surface locking structure is adopted. By arranging transverse handles, longitudinal retaining members, and upper and lower toothed locking members on the sliding surface of the landslide, a locking structure is formed, which transfers the sliding force of the landslide to the stable sliding bed, avoiding the use of traditional anti-slide piles.
It has achieved effective treatment of large and medium-sized landslides, significantly reduced engineering treatment costs, and features a compact structure, strong integrity, and clear force transmission path.
Smart Images
Figure CN122061491A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of landslide control technology, specifically relating to a comb-type sliding surface locking structure and its construction method. Background Technology
[0002] Currently, for medium and large-sized landslides, due to the large residual sliding force, retaining structures such as anti-slide piles and anchored anti-slide piles are usually used for support. For large and giant landslides, due to the extremely large residual sliding force and the great thickness of the landslide body (giant landslides can exceed 50m in thickness), the cross-section and length of anti-slide piles required for support under such conditions will be very large. This may even render the treatment plan based on anti-slide piles no longer feasible in terms of structural safety, construction feasibility, technological maturity, and economic rationality.
[0003] Based on the above problems, this invention starts from the sliding surface of the landslide body and effectively locks the sliding surface to effectively solve the problems of high cost, huge size, and even inability to manage anti-slide pile schemes. It can effectively manage large and giant landslide bodies and significantly reduce the economic cost of engineering management. Summary of the Invention
[0004] This invention provides a comb-type sliding surface locking structure and construction method. By arranging the comb-type sliding surface locking structure at an appropriate position on the front sliding surface of large and giant landslides, the locking structure effectively balances the sliding force of the landslide, thereby achieving effective treatment of large and medium-sized landslides.
[0005] Therefore, the present invention adopts the following technical solution: A comb-type sliding surface locking structure includes a transverse handle beam, which is arranged on the sliding surface of the landslide body and perpendicular to the sliding direction; longitudinal baffles are provided at the left and right ends of the transverse handle beam, and the longitudinal baffles are parallel to the sliding direction. The upper surface of the transverse handle beam is provided with several vertically upward and spaced upper toothed locking fasteners, and the lower surface of the transverse handle beam is provided with several vertically downward and spaced lower toothed locking fasteners. The upper toothed locking fasteners and lower toothed locking fasteners are arranged transversely along the transverse handle beam, and the upper toothed locking fasteners and lower toothed locking fasteners correspond one to one and face each other vertically. The lower surface of the longitudinal baffle is provided with several vertically downward and spaced lower toothed locking fasteners; The layout path of the transverse handle beam is adapted to the cross-sectional curve of the landslide surface, and is either straight or arc-shaped.
[0006] Furthermore, the transverse handle beam, longitudinal baffle, upper tooth locking fastener, and lower tooth locking fastener are made of steel, plain concrete, or reinforced concrete; each structure is fixed as a whole to form a sliding surface locking structure.
[0007] Furthermore, the cross-sections of the transverse handle beam, longitudinal baffle, upper toothed locking member, and lower toothed locking member are rectangular.
[0008] A construction method for a comb-type sliding surface locking structure includes the following steps: 1) Determine the location of the sliding surface of the landslide body, and determine the dimensional parameters of the transverse handle beam, longitudinal baffle, upper toothed locking member and lower toothed locking member; 2) Excavate the space for longitudinal retaining members from the landslide bodies at both ends, and then construct the support layer, reserving space for the lower tooth locking fasteners when constructing the support layer; 3) After the longitudinal retaining members are excavated and supported, the transverse handle beam space is excavated from both ends to the middle, and then the corresponding support layer is constructed. The support is carried out while excavating. When constructing the support layer, the positions of the upper and lower toothed locking fasteners are reserved. 4) After the transverse handle beam is fully penetrated, excavate the upper and lower toothed locking fasteners from the middle to both ends, excavating in sections and supporting them in sections. 5) After the excavation and support of all upper and lower toothed locking fasteners within the transverse handle beam range are completed, the lower toothed locking fasteners within the longitudinal retaining members at both ends shall be installed.
[0009] The beneficial effects of this invention are as follows: This invention addresses landslides by employing a comb-type sliding surface locking structure at appropriate locations on the front sliding surface of large and giant landslides, instead of traditional anti-slide piles. The locking structure includes a transversely arranged transverse handle beam and longitudinally arranged longitudinal retaining members. The transverse handle beam is fixedly connected to the longitudinal retaining members at both ends. A certain number of upper and lower toothed locking members are installed on the top and bottom surfaces of the transverse handle beam, depending on the width of the landslide. A certain number of lower toothed locking members are installed on the bottom surface of the longitudinal retaining members, depending on the size of the landslide. The upper toothed locking members transfer the load to the transverse handle beam, which in turn transfers a portion of the load to the longitudinal retaining members at both ends. The longitudinal retaining members then transfer the load to the lower toothed locking members, and finally, the lower toothed locking members under the longitudinal retaining members and transverse handle beam transfer the load to the stable sliding surface. This method effectively manages large and giant landslides. This invention no longer uses traditional anti-slide piles or other structures, but instead uses a locking mechanism to secure the sliding surface. The remaining sliding force of the landslide is directly transferred to the stable sliding bed through the sliding surface locking structure. The force transmission path is clear, the structure is compact, and the overall structure is strong and economical. Attached Figure Description
[0010] Figure 1 This is a plan view of the locking structure of the present invention; Figure 2 This is a cross-sectional view of the locking structure of the present invention; Figure 3 This is the longitudinal section of the locking structure of the present invention. Figure 1 ; Figure 4This is the longitudinal section of the locking structure of the present invention. Figure 2 ; Figure 5 For structural details of the component entity; Figure 6 A three-dimensional diagram of a linear locking structure; Figure 7 To analyze the stability diagram of the landslide under natural conditions using Midas-GTS software; Figure 8 To analyze the stability of the landslide body between the longitudinal retaining members at both ends after the structure of this invention is used for support, Midas-GTS software is used. Figure 9 To analyze the stability of the landslide at the longitudinal retaining members at both ends after the structure of this invention is used for support, Midas-GTS software was used. In the figure: 1. Landslide body, 2. Sliding surface, 3. Stabilized slide, 4. Transverse handle beam, 5. Longitudinal retaining member, 6. Upper toothed locking member, 7. Lower toothed locking member, 8. Support layer, 9. Component entity, 10. Venting and measuring hole. Detailed Implementation
[0011] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. The components involved in this invention can be made of steel, plain concrete, or reinforced concrete, depending on the engineering requirements. This description uses the fabrication of reinforced concrete components as an example; the fabrication processes for components made of other materials are similar.
[0012] like Figure 1-4 As shown, a comb-type sliding surface locking structure includes a transverse handle beam, which is transversely arranged on the sliding surface 2 and perpendicular to the sliding direction; longitudinal baffles are provided at both ends of the transverse handle beam, and the longitudinal baffles are parallel to the sliding direction; the upper surface of the transverse handle beam is provided with a plurality of vertically upward and spaced upper toothed locking fasteners 6, and the lower surface of the transverse handle beam is provided with a plurality of vertically downward and spaced lower toothed locking fasteners 7, the upper toothed locking fasteners 6 and lower toothed locking fasteners 7 are arranged transversely, and the upper toothed locking fasteners 6 and lower toothed locking fasteners 7 correspond one-to-one and are directly opposite each other; the lower surface of the longitudinal baffles is provided with a plurality of vertically downward and spaced lower toothed locking fasteners 7; the arrangement path of the transverse handle beam is adapted to the cross-sectional curve of the landslide surface, and is either straight or arc-shaped.
[0013] The vertically arranged upper toothed locking member 6 and lower toothed locking member 7, the horizontally arranged transverse handle beam, and the longitudinally arranged longitudinal baffle form a complete support structure to bear the sliding force generated by the landslide body 1, thereby achieving the control of large and giant landslide bodies 1. This invention has two paths for transmitting the landslide sliding force, as follows: Path 1: The residual sliding force generated by the landslide body 1 is first transferred to the upper toothed locking member 6. The upper toothed locking member 6 then transfers the load to the transverse handle beam fixed to the bottom end of the upper toothed locking member 6. The transverse handle beam continues to transfer the load to the longitudinal baffles fixed to both ends of the transverse handle beam. The longitudinal baffles transfer the load to the lower toothed locking member 7 fixed to the bottom surface of the longitudinal baffle. The lower toothed locking member 7 transfers the load to the stabilizing slide bed 3, thus realizing the process of transferring the sliding force of the landslide.
[0014] Path 2: The residual sliding force generated by landslide body 1 is first transferred to the upper toothed locking member 6. The upper toothed locking member 6 then transfers the load to the transverse handle beam fixed to the bottom end of the upper toothed locking member 6. The transverse handle beam transfers the load to the lower toothed locking member 7 fixed to the bottom surface of the transverse handle beam. The lower toothed locking member 7 transfers the load to the stabilizing slide bed 3, thus realizing the process of transferring the sliding force of the landslide.
[0015] This invention achieves the transmission of residual sliding force of landslides and the treatment of large and giant landslides through the above two paths.
[0016] A construction method for a comb-type sliding surface locking structure includes the following steps: First, at the leading edge of landslide body 1, near the longitudinal retaining member 5 of sliding surface 2, excavate landslide body 1 and sliding bed to form a construction component channel. The longitudinal retaining member positions on both sides of landslide body 1 can be excavated simultaneously to improve construction efficiency. To ensure the safety of the construction process, the channel is excavated in sections, and the support layer 8 is poured in sections. The support layer 8 can be made of plain concrete, reinforced concrete, or steel plate to provide sufficient strength and rigidity to support the earth pressure generated after excavation and ensure the safety of the construction process. Continue excavation along sliding surface 2 towards the rear edge of landslide body 1 until the transverse shank beam is reached. Then, excavate simultaneously from both ends of the transverse shank beam towards the midpoint of the transverse shank beam. The construction process is the same as that of the longitudinal retaining member. After excavation, the support layer 8 composed of reinforced concrete is constructed. After the transverse shank beam position is excavated and penetrated, the steel reinforcement skeleton consisting of the transverse shank beam, upper toothed locking member 6, and lower toothed locking member 7 is tied from the middle of the transverse shank beam towards both ends. Then, according to the construction drawings, the steel reinforcement skeleton of the longitudinally arranged longitudinal retaining members and the lower toothed locking members 7 is tied. After all the component steel reinforcement is tied, reinforced concrete is used to seal the positions on both sides of the landslide body 1, that is, the front ends of the longitudinal retaining members, leaving concrete pouring holes during sealing. Then, venting and measuring holes 10 are constructed at the corresponding positions on the ground of the landslide body 1. Finally, self-leveling concrete is pumped and poured simultaneously from the two pouring holes located at the front edges of the longitudinal retaining members on both sides of the landslide body 1, and the elevation of the concrete pouring surface is measured in the venting and measuring holes 10 until the concrete pouring work of all component entities 9 is completed. Figure 6 As shown, all the frames are rigidly connected to improve the overall structure and stiffness, and optimize the stress on the structure.
[0017] Standardized construction methods for specific structures: 1) Determine the location of the sliding surface 2 of the landslide body 1, and determine the dimensional parameters of the transverse handle beam, longitudinal baffle, upper toothed locking member 6 and lower toothed locking member 7.
[0018] 2) First, excavate the space of the longitudinal retaining member 5 from the landslide body 1 at both ends, and then construct the support layer 8. When constructing the support layer 8, the position of the lower tooth locking member 7 is reserved. The segmented excavation and segmented support can be carried out, and the segment length is determined according to the specific geological conditions.
[0019] 3) After the longitudinal retaining member 5 is excavated and supported, the space of the transverse handle beam 4 is excavated from both ends to the middle, and then the corresponding support layer 8 is constructed. Excavation and support are carried out simultaneously to ensure the safety of the construction process. The segment length is determined according to the specific geological conditions. When constructing the support layer 8, the positions of the upper and lower toothed locking fasteners 7 are reserved.
[0020] 4) After the transverse handle beam 4 is fully connected to the handle support, the upper toothed locking fastener 6 and the lower toothed locking fastener 7 are excavated from the middle to both ends, and the excavation and support are carried out in sections.
[0021] 5) After excavation and support of all upper toothed locking fasteners 6 and lower toothed locking fasteners 7 within the range of the transverse handle beam 4, install the lower toothed locking fasteners 7 within the range of the longitudinal retaining members 5 at both ends. Finally, install the following sequence: front end of the longitudinal retaining members 5 on both sides → lower toothed locking fasteners 7 within the range of the longitudinal retaining members → rear end of the longitudinal retaining members 5 → both ends of the transverse handle beam 4 → lower toothed locking fasteners 7 within the range of the transverse handle beam 4 → transverse handle beam 4 → upper toothed locking fasteners 6 within the range of the transverse handle beam 4 → complete as follows. Figure 6 Construction of the entire retaining structure component 9.
[0022] To verify the effectiveness of this invention, a numerical model was established using Midas-GTS finite element analysis software. The effectiveness was demonstrated for a specific landslide treatment project. Under natural conditions, the stability coefficient of the landslide before the application of this retaining structure was 0.903. Figure 7 As shown, according to industry standards, landslide 1 is determined to be in an unstable state. After treatment using this retaining structure, two cross-sections were selected based on the different structures described herein. Figure 8 The representative section between the two longitudinal retaining members 5 has a stability coefficient of 1.681. Figure 9 The stability coefficient of the five representative sections at the longitudinal retaining members at both ends is 1.869. According to industry standards, the stability coefficient of landslide 1 significantly improved after adopting the support structure of this invention. Different industry standards require a stability coefficient of 1.1 to 1.3 for the treatment thickness of landslide 1. After adopting the support structure of this invention, the stability coefficient of the representative section between the five longitudinal retaining members at both ends increased from 0.903 to 1.681, and the stability coefficient of the representative sections at the five longitudinal retaining members at both ends increased from 0.903 to 1.869. Figure 8 and Figure 9The difference in stability coefficients is mainly due to significant variations in the stiffness of the retaining structures. The longitudinal retaining members at both ends (section 5) are stronger than those in the middle, resulting in higher stability coefficients, which fully conforms to the principles of engineering retaining. The stability coefficients of landslide body 1 all meet the requirements of the specifications. Furthermore, compared to the specifications, the structure of this invention provides a higher safety margin for landslide body 1, demonstrating the high efficiency of this invention in landslide control.
Claims
1. A comb-type sliding surface locking structure, characterized in that, It includes a transverse handle beam (4), which is located on the sliding surface (2) of the landslide body (1) and is perpendicular to the sliding direction; the left and right ends of the transverse handle beam (4) are provided with longitudinal baffles (5), which are parallel to the sliding direction. The upper surface of the transverse handle beam (4) is provided with several vertically upward and spaced upper toothed fasteners (6), and the lower surface of the transverse handle beam (4) is provided with several vertically downward and spaced lower toothed fasteners (7). The upper toothed fasteners (6) and lower toothed fasteners (7) are arranged transversely along the transverse handle beam (4), and the upper toothed fasteners (6) and lower toothed fasteners (7) correspond one to one and face each other directly. The lower surface of the longitudinal baffle (5) is provided with several vertically downward and spaced lower toothed fasteners (7). The layout path of the transverse handle beam (4) is adapted to the cross-sectional curve of the landslide surface, and is either straight or arc-shaped.
2. The comb-type sliding surface locking structure according to claim 1, characterized in that, The transverse handle beam (4), longitudinal baffle (5), upper toothed locking fastener (6) and lower toothed locking fastener (7) are made of steel, plain concrete or reinforced concrete; each structure is fixed as a whole to form a sliding surface locking structure.
3. The comb-type sliding surface locking structure according to claim 1, characterized in that, The cross-sections of the transverse handle (4), longitudinal baffle (5), upper toothed locking fastener (6), and lower toothed locking fastener (7) are rectangular.
4. A construction method for a comb-type sliding surface locking structure according to any one of claims 1-3, characterized in that, Includes the following steps: 1) Determine the location of the sliding surface (2) of the landslide body (1), and determine the dimensional parameters of the transverse handle beam (4), longitudinal baffle (5), upper toothed locking fastener (6) and lower toothed locking fastener (7); 2) Excavate the space for the longitudinal retaining member (5) from the landslide body (1) at both ends, and then construct the support layer. When constructing the support layer, reserve the position for the lower tooth locking member (7). 3) After the longitudinal retaining member (5) is excavated and supported, the space of the transverse handle beam (4) is excavated from both ends to the middle, and then the corresponding support layer is constructed. The support is carried out while excavating. When constructing the support layer, the positions of the upper toothed locking fastener (6) and the lower toothed locking fastener (7) are reserved. 4) After the transverse handle beam (4) is fully connected, the upper toothed locking fastener (6) and the lower toothed locking fastener (7) are excavated from the middle to both ends, and the excavation and support are carried out in sections. 5) After the excavation and support of all upper toothed locking fasteners (6) and lower toothed locking fasteners (7) within the range of the transverse handle beam (4), the lower toothed locking fasteners (7) within the range of the longitudinal retaining members (5) at both ends are installed.