Deep foundation pit support structure capable of blocking underground confined water
By using concrete column splicing foundation pit enclosure walls and fences in the deep foundation pit enclosure structure, combined with flexible filling strips and sealing strips, and fixing them with concrete anchor cables, the problem of support of underground pressure-bearing water on deep foundation pits is solved, and stronger support and sealing effects are achieved.
Patent Information
- Application Number
- CN202422253515.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-14
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-09-14
AI Technical Summary
In an underground pressure-bearing water environment, it is difficult for the existing deep foundation pit enclosure structure to effectively support and block the pressure of underground pressure-bearing water.
The foundation pit enclosure wall is composed of the first and second concrete columns spliced, and the enclosure rail is spliced by the first, second and third baffles. The flexible filling strips and sealing strips maintain the connection tightness. They are fixed by concrete anchor cables. The formed structure improves the support effect, and sealing gaps are cast through concrete to enhance the connection.
It improves the support capacity of the foundation pit, effectively blocks underground pressure-bearing water, and enhances the stability and sealing of the foundation pit enclosure structure.
Smart Images
Figure CN223088442U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of foundation pit retaining, in particular to a deep foundation pit retaining structure capable of blocking underground confined water. Background Technique
[0002] A foundation pit is an earth pit excavated at the designed position of the foundation according to the base elevation and the foundation plan dimensions.
[0003] In a geological environment with underground confined water, the foundation pit needs to bear greater pressure. Therefore, a retaining structure with stronger bearing capacity needs to be set up. Thus, a deep foundation pit retaining structure capable of blocking underground confined water is proposed to solve the above-mentioned problems. Content of the Utility Model
[0004] In view of the deficiencies of the prior art, the utility model provides a deep foundation pit retaining structure capable of blocking underground confined water, which improves the support for the foundation pit and the function of blocking underground confined water, and solves the above-mentioned problems.
[0005] To achieve the above object, the utility model provides the following technical solution: a deep foundation pit retaining structure capable of blocking underground confined water, including a soil layer foundation pit, a foundation pit retaining wall is arranged at the edge of the soil layer foundation pit, a guardrail is arranged on the foundation pit retaining wall, and a concrete anchor cable is arranged on the guardrail.
[0006] Further, the foundation pit retaining wall includes a first concrete column and a second concrete column, the concrete column and the second concrete column are formed by the high-pressure jet grouting process, the foundation pit retaining wall is composed of the first concrete column and the second concrete column spliced with each other, and a steel reinforcement cage is arranged inside the first concrete column.
[0007] Further, the guardrail includes a first baffle, a second baffle and a third baffle, flexible filling strips are arranged on the first baffle, the second baffle and the third baffle, and the flexible filling strips are fitted with the foundation pit retaining wall.
[0008] Further, flexible sealing strips are arranged on the first baffle, the second baffle and the third baffle, the flexible sealing strips can be mutually extruded, and the guardrail is composed of a plurality of first baffles, second baffles and third baffles spliced with each other.
[0009] Further, the concrete anchor cable penetrates through the guardrail and the second concrete column and extends into the soil layer foundation pit.
[0010] Further, a gap is formed between the foundation pit retaining wall and the guardrail, and the gap can be sealed by pouring concrete.
[0011] Compared with the prior art, the technical solution of the present application has the following beneficial effects:
[0012] The deep foundation pit retaining structure capable of blocking underground confined water, the first baffle, the second baffle and the third baffle are spliced to form a guardrail, and the guardrail can be fixed on the foundation pit retaining wall through concrete anchor cables, playing a role in strengthening the foundation pit retaining wall, further improving the support for the soil layer foundation pit and blocking underground confined water. The flexible filling strip fits with the foundation pit retaining wall to maintain the tightness of the connection between the guardrail and the foundation pit retaining wall, and the flexible sealing strip maintains the tightness of the connection between the first baffle, the second baffle and the third baffle. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic top-down sectional structure view of the present utility model;
[0014] Figure 2 It is a schematic partial top-down sectional structure view of the present utility model;
[0015] Figure 3 It is a schematic enlarged structure view of part A of the present utility model;
[0016] Figure 4 It is a schematic partial top-down structure view of the present utility model;
[0017] Figure 5 It is a schematic partial top-down exploded structure view of the present utility model.
[0018] In the figure: 1, soil layer foundation pit; 2, foundation pit retaining wall; 201, first concrete column; 2011, steel reinforcement cage; 202, second concrete column; 3, guardrail; 301, first baffle; 302, second baffle; 303, third baffle; 3001, flexible filling strip; 3002, flexible sealing strip; 2301, gap; 4, concrete anchor cable. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0020] Please refer to Figures 1-5 , an embodiment provided by the present utility model:
[0021] A deep foundation pit retaining structure capable of blocking underground confined water, including a soil layer foundation pit 1, a foundation pit retaining wall 2 is arranged at the edge of the soil layer foundation pit 1, a guardrail 3 is arranged on the foundation pit retaining wall 2, and a concrete anchor cable 4 is arranged on the guardrail 3.
[0022] Furthermore, the first concrete column 201 and the second concrete column 202 are spliced to form the foundation pit retaining wall 2. The foundation pit retaining wall 2 serves to retain the soil layer foundation pit 1, prevent the collapse of the soil layer foundation pit 1, and block the confined groundwater. The steel reinforcement cage 2011 serves to reinforce the foundation pit retaining wall 2.
[0023] Furthermore, the first baffle 301, the second baffle 302, and the third baffle 303 are spliced to form the guardrail 3. The guardrail 3 can be fixed to the foundation pit retaining wall 2 by the concrete anchor cable 4, serving to reinforce the foundation pit retaining wall 2 and further improve the support for the soil layer foundation pit 1 and the blocking of the confined groundwater.
[0024] Furthermore, the flexible filling strip 3001 fits with the foundation pit retaining wall 2 to maintain the tight connection between the guardrail 3 and the foundation pit retaining wall 2, and the flexible sealing strip 3002 maintains the tight connection between the first baffle 301, the second baffle 302, and the third baffle 303.
[0025] Furthermore, a gap 2301 is formed between the foundation pit retaining wall 2 and the guardrail 3. The gap 2301 can be sealed by concrete pouring to maintain the tight connection between the foundation pit retaining wall 2 and the guardrail 3.
[0026] In summary, the deep foundation pit retaining structure capable of blocking confined groundwater improves the support for the foundation pit and the blocking of confined groundwater, and solves the problems raised in the background art.
[0027] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of additional identical elements in the process, method, article or device including the said element.
[0028] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A deep foundation pit retaining structure capable of blocking underground confined water, comprising a soil layer foundation pit (1), characterized in that: A retaining wall (2) is provided at the edge of the soil layer foundation pit (1), a guardrail (3) is provided on the retaining wall (2), and a concrete anchor cable (4) is provided on the guardrail (3).
2. The deep foundation pit retaining structure capable of blocking underground confined water according to claim 1, characterized in that: The retaining wall (2) includes a first concrete column (201) and a second concrete column (202). The concrete columns (201) and the second concrete column (202) are formed by the high-pressure jet grouting process. The retaining wall (2) is composed of the first concrete column (201) and the second concrete column (202) spliced together. A steel reinforcement cage (2011) is provided inside the first concrete column (201).
3. The deep foundation pit retaining structure capable of blocking underground confined water according to claim 1, characterized in that: The guardrail (3) includes a first baffle (301), a second baffle (302) and a third baffle (303). Flexible filling strips (3001) are provided on the first baffle (301), the second baffle (302) and the third baffle (303). The flexible filling strips (3001) are in conformity with the retaining wall (2).
4. A deep foundation pit retaining structure capable of blocking underground confined water according to claim 3, characterized in that: Flexible sealing strips (3002) are provided on the first baffle (301), the second baffle (302) and the third baffle (303). The flexible sealing strips (3002) can be squeezed against each other. The guardrail (3) is composed of a plurality of the first baffle (301), the second baffle (302) and the third baffle (303) spliced together.
5. A deep foundation pit retaining structure capable of blocking underground confined water according to claim 2, characterized in that: The concrete anchor cable (4) penetrates through the guardrail (3) and the second concrete column (202) and extends into the soil layer foundation pit (1).
6. The deep foundation pit retaining structure capable of blocking underground confined water according to claim 1, characterized in that: A gap (2301) is formed between the retaining wall (2) and the guardrail (3), and the gap (2301) can be sealed by pouring concrete.