Grouting and hole filling combined component for Larsen steel sheet pile
By installing connectors and low-pressure seamless steel pipe grouting pipes inside the web of Larssen sheet piles, the problem of synchronizing soil cavity treatment after Larssen sheet pile extraction was solved, achieving seamless connection between pile extraction and grouting, reducing construction costs and improving construction efficiency and safety.
Patent Information
- Application Number
- CN202423186506.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-24
AI Technical Summary
In existing technologies, the treatment of soil voids left after Larssen sheet pile extraction is difficult to carry out simultaneously with grouting, leading to problems such as soil collapse and groundwater loss. Furthermore, the construction process is greatly affected by the environment and the interval between procedures.
Multiple combinations of Larssen sheet piles, connectors, and low-pressure seamless steel pipe grouting pipes are used. The connectors are installed inside the web of the sheet pile, and the grouting pipes are pressed together by the connectors. A one-way valve is installed at the bottom, and the top of the pipe is more than 600mm away from the top of the sheet pile, so as to achieve synchronous pile extraction and grouting.
This achieves seamless integration of sheet pile extraction and grouting, reducing construction costs, simplifying procedures, and ensuring the synchronicity and safety of construction.
Smart Images
Figure CN223548582U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of foundation pit support structures, and more specifically, to a grouting filling component for Larssen sheet piles. Background Technology
[0002] Larssen sheet piles are a commonly used support method for foundation pit support structures, offering convenient and rapid construction. However, in soft soil areas, the removal of sheet pile foundation pit support structures after completion can leave soil voids. If not addressed promptly, these voids can lead to soil subsidence, groundwater loss, and deformation of the soil beneath the main structure's foundation, impacting structural safety and the normal use of the building.
[0003] Traditionally, the method for filling boreholes involves first extracting the sheet pile as a whole, then inserting a grouting pipe into the remaining borehole and injecting cement grout or cement mortar. This method is greatly affected by the on-site construction environment and procedures, and the interval between extraction and grouting cannot be guaranteed, making synchronization difficult. In soft soil areas, if the interval is too long, the aforementioned problems such as soil collapse cannot be avoided. Utility Model Content
[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a grouting and filling combination component for Larssen steel sheet piles.
[0005] This utility model discloses a grouting and filling assembly for Larssen sheet piles, which is achieved through the following technical solution: it includes multiple combined Larssen sheet piles, connectors, and grouting pipes. Multiple connectors are evenly installed on the inner wall of the web of each Larssen sheet pile from top to bottom. The grouting pipe is pressed against the inner wall of the web of the sheet pile by multiple connectors. The connectors are made of hot-rolled angle steel segments.
[0006] A one-way valve is installed at the bottom of the grouting pipe.
[0007] The grouting pipe is made of low-pressure seamless steel pipe.
[0008] The top of the grouting pipe is more than 600mm away from the top of the Larssen sheet pile.
[0009] Compared with the prior art, the beneficial effects of this utility model are:
[0010] This invention enables seamless simultaneous extraction and grouting of sheet piles. The modular component can be fabricated in a factory or transported to the site for assembly, resulting in low cost, simple structure, and convenient construction. Attached Figure Description
[0011] Figure 1 This is a plan view of the present invention;
[0012] Figure 2 yes Figure 1 Sectional view of I--I. Detailed Implementation
[0013] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this utility model pertains. The terminology used in this specification of the utility model is for the purpose of describing particular embodiments only and is not intended to limit the utility model.
[0014] This utility model is as follows Figure 1-2 As shown, the assembly includes multiple Larssen sheet piles 1, connectors 2, and grouting pipes 3. Multiple connectors are evenly installed from top to bottom on the inner wall of the web of each Larssen sheet pile. The grouting pipe is pressed against the inner wall of the sheet pile's web by these connectors. The connectors are made of hot-rolled angle steel segments. A one-way valve 4 is installed at the bottom of the grouting pipe to prevent soil blockage during pile driving. The grouting pipe is made of low-pressure seamless steel. The top of the grouting pipe is at least 600mm away from the top of the Larssen sheet pile to avoid the piling clamp area.
[0015] This utility model relates to a steel composite component consisting of a grouting pipe and a sheet pile. It is a composite component that uses a common grouting pipe connected to a Larssen sheet pile via short angle steel sections. Because it is directly installed in the middle of the web of the Larssen sheet pile, and avoids the working range of the pile driver's clamps, it can achieve seamless connection between pile extraction and grouting, ensuring optimal working conditions.
[0016] The above description is only a preferred embodiment of the present utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A grouting and filling assembly for Larssen sheet piles, characterized in that, It includes multiple combinations of Larssen sheet piles, connectors, and grouting pipes. Multiple connectors are evenly installed on the inner wall of the web of each Larssen sheet pile from top to bottom. The grouting pipe is pressed against the inner wall of the web of the sheet pile by multiple connectors. The connectors are made of hot-rolled angle steel segments.
2. The grouting and filling assembly for Larssen sheet piles according to claim 1, characterized in that, A one-way valve is installed at the bottom of the grouting pipe.
3. The grouting and filling assembly for Larssen sheet piles according to claim 1, characterized in that, The grouting pipe is made of low-pressure seamless steel pipe.
4. The grouting and filling assembly for Larssen sheet piles according to claim 1, characterized in that, The top of the grouting pipe is more than 600mm away from the top of the Larssen sheet pile.