Opposite supporting system of road anchoring type sheet-pile wall

Abstract

The utility model relates to a diagonal bracing system of a road anchoring type sheet-pile wall, which comprises a first cast-in-place pile and a second cast-in-place pile, the first cast-in-place pile and the second cast-in-place pile are arranged in parallel, and the first cast-in-place pile and the second cast-in-place pile divide a to-be-constructed area into a first space with the middle capable of being excavated, a second space with the two sides reinforced and a third space. Pre-stressed anchor cables are arranged in the second space and the third space respectively and correspond to the first cast-in-place piles and the second cast-in-place piles in a one-to-one mode at intervals, first top beams are arranged on the upper portions of the first cast-in-place piles, second top beams are arranged on the upper portions of the second cast-in-place piles, and waist beams are arranged on pile bodies of the first cast-in-place piles and the second cast-in-place piles. A diagonal brace is arranged at the upper part of the first space and is fixedly connected with a waist beam and a second crown beam on the first cast-in-place pile; the diagonal bracings are arranged between the piles on the two sides of the road, so that the pile anchor structures on the two sides and the diagonal bracings are connected into a whole, displacement of the piles and nearby buildings and internal force of pile bodies are reduced, and the safety performance of the high slope anchoring type sheet-pile wall is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road high slope support, in particular to a road anchor-pull type pile-sheet wall support system. Background Art

[0002] With the development of urban construction, intensive use of space is particularly important. Anchor-type pile-sheet walls are widely used in slopes without slope space; they have fast construction speed, small construction area, and little impact on construction roads and surrounding buildings.

[0003] Due to the large excavation depth, such as more than 15m, the anchor-pull pile-sheet wall generally has problems such as large displacement of piles and nearby structures, large internal forces in the pile body and large reinforcement. Utility Model Content

[0004] Based on the above description, the utility model provides a bracing system for a road anchor pile-sheet wall to solve the problems of large displacement of piles and nearby structures, large internal forces in the pile body and large reinforcement in general anchor pile-sheet walls.

[0005] The technical solution of the utility model for solving the above-mentioned technical problems is as follows: a bracing system for a road anchor-type pile-sheet wall, comprising: a first cast-in-place pile and a second cast-in-place pile, the first cast-in-place pile and the second cast-in-place pile are arranged in parallel, the first cast-in-place pile and the second cast-in-place pile divide the area to be constructed into a first space that can be excavated in the middle, a second space reinforced on both sides, and a third space, the second space and the third space are respectively provided with prestressed anchor cables, the prestressed anchor cables are respectively arranged at intervals corresponding to the first cast-in-place pile and the second cast-in-place pile, a first crown beam is arranged on the upper part of the first cast-in-place pile, a second crown beam is arranged on the upper part of the second cast-in-place pile, the pile bodies of the first cast-in-place pile and the second cast-in-place pile are both provided with waist beams, a brace is arranged on the upper part of the first space, and the brace is fixedly connected to the waist beam and the second crown beam on the first cast-in-place pile.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows.

[0007] Furthermore, the length of the first cast-in-place pile is greater than that of the second cast-in-place pile, and the bottom of the first cast-in-place pile is flush with the bottom of the second cast-in-place pile.

[0008] Furthermore, a steel cage is provided inside the first cast-in-place pile and the second cast-in-place pile, and the outer sides of the first crown beam and the second crown beam are connected to the external ground line.

[0009] Furthermore, the waist beam is arranged on the first cast-in-place pile corresponding to the position of the second crown beam, and a plurality of the braces are arranged between the waist beam and the second crown beam.

[0010] Furthermore, the prestressed anchor cables are arranged obliquely downward, and the arrangement position of the bottom row of the prestressed anchor cables is not greater than 0.5 m in depth from the bottom of the first space.

[0011] Furthermore, the brace is connected to the first cast-in-place pile and the second cast-in-place pile as a whole to form a brace system structure.

[0012] Furthermore, there are multiple first cast-in-place piles and second cast-in-place piles, the prestressed anchor cable on the side of the first cast-in-place pile is arranged between two of the first cast-in-place piles, and the prestressed anchor cable on the side of the second cast-in-place pile is arranged between two of the second cast-in-place piles, the first cast-in-place piles and the second cast-in-place piles are arranged in an interval with the prestressed anchor cables, and the prestressed anchor cables and the first cast-in-place piles and the second cast-in-place piles form a pile-anchor structure.

[0013] Furthermore, the prestressed anchor cables are arranged in multiple rows, and one side of the multiple rows of prestressed anchor cables is respectively connected to the multiple rows of waist beams, and the spacing distance between the double rows of prestressed anchor cables at the upper part of the first and second cast-in-place piles is greater than the spacing distance between the double rows of prestressed anchor cables at the lower part of the cast-in-place piles.

[0014] Furthermore, the waist beam includes a first waist beam arranged on the first cast-in-place pile and a second waist beam arranged on the second cast-in-place pile, and multiple first waist beams and multiple second waist beams are arranged; the first waist beam and the second waist beam below the lower end of the second crown beam are symmetrically arranged.

[0015] Compared with the prior art, the technical solution of this application has the following beneficial technical effects:

[0016] The bracing system is achieved by arranging braces between the crown beam and waist beam of the piles on both sides of the road, so that the pile anchor structures on both sides are connected with the braces as a whole, which is beneficial to reduce the displacement of the piles and nearby structures, reduce the internal force of the pile body, and improve the safety performance of the anchor-pull pile-sheet wall on the high slope.

[0017] The bracing system can reduce the number of prestressed anchor cables and pile reinforcement by setting braces, thus saving engineering costs and being beneficial to engineering economy. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic structural diagram of a first-viewing angle of view of a bracing system of a road anchor-type pile-sheet wall provided in an embodiment of the utility model;

[0019] Figure 2 A schematic structural diagram from a second perspective of a bracing system for a road anchor-type pile-sheet wall provided by an embodiment of the utility model;

[0020] Figure 3A schematic diagram of the three-dimensional structure of a bracing system of a road anchor-type pile-sheet wall provided in an embodiment of the utility model;

[0021] Figure 4 A schematic diagram of the structure of a first cast-in-place pile provided in an embodiment of the utility model;

[0022] Figure 5 A schematic diagram of the structure of a second cast-in-place pile provided in an embodiment of the utility model;

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 1. First cast-in-place pile; 11. First crown beam; 2. Second cast-in-place pile; 21. Second crown beam; 3. First space; 4. Second space; 5. Third space; 6. Prestressed anchor cable; 7. Waist beam; 71. First waist beam; 72. Second waist beam; 8. Counter support. DETAILED DESCRIPTION

[0025] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0026] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0027] When used herein, the singular forms "a", "an" and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0028] See also Figure 1-5 The utility model provides a technical solution: a road anchor-type pile-sheet wall support system, comprising: a first cast-in-place pile 1, a second cast-in-place pile 2;

[0029] The first bored pile 1 and the second bored pile 2 are arranged in parallel, and the first bored pile 1 and the second bored pile 2 divide the area to be constructed into a first space 3 that can be excavated in the middle, a second space 4 and a third space 5 reinforced on both sides, the second space 4 and the third space 5 are respectively provided with prestressed anchor cables 6, and the prestressed anchor cables 6 are respectively arranged in a one-to-one correspondence with the first bored pile 1 and the second bored pile 2. A first crown beam 11 is arranged on the upper part of the first bored pile 1, and a second crown beam 21 is arranged on the upper part of the second bored pile 2. The pile bodies of the first bored pile 1 and the second bored pile 2 are both provided with waist beams 7, and a support 8 is arranged on the upper part of the first space 3, and the support 8 is fixedly connected to the waist beam 7 and the second crown beam 21 on the first bored pile 1.

[0030] Please see attached Figure 3 The first space 3, the second space 4, and the third space 5 are respectively the middle and two side areas of the first bored pile 1 and the second bored pile 2; the area to be constructed refers to the area to be disturbed during the construction of the support system 8; the prestressed anchor cables 6 are respectively arranged in a one-to-one correspondence with the first bored pile 1 and the second bored pile 2, which means that the prestressed anchor cables 6 on both sides of the first bored pile 1 and the second bored pile 2 are respectively arranged between the two first bored piles 1 and the second bored piles 2, and the prestressed anchor cables 6 on one side are arranged one-to-one with a single first bored pile 1, and similarly, the prestressed anchor cables 6 on one side are arranged one-to-one with a single second bored pile 2, and the support 8 is arranged on the upper part of the first space 3, which means that the first bored pile 1 and the support 8 on the upper part of the second bored pile 2 form the first space 3.

[0031] Please see attached Figure 2 In a specific embodiment, five ΦS21.6 prestressed anchor cables 6, a first cast-in-place pile 1 and a second cast-in-place pile 2 of Φ1.2m@2.4m, a 1.0m×1.0m reinforced concrete waist beam 7, a 1.55m×1.0m reinforced concrete first crown beam 11 and a second crown beam 21, and a 0.8m×0.8m reinforced concrete brace 8 are arranged on one side of the bracing system, forming a skeleton system of an anchor-pull pile-sheet wall with braces 8.

[0032] Please see attached Figure 2 , the length of the first cast-in-place pile 1 is greater than that of the second cast-in-place pile 2, and the bottom of the first cast-in-place pile 1 is flush with the bottom of the second cast-in-place pile 2. In other words, the lengths of the first cast-in-place pile 1 and the second cast-in-place pile 2 are different.

[0033] The first cast-in-place pile 1 and the second cast-in-place pile 2 are both provided with steel cages inside, and the first crown beam 11 and the second crown beam 21 are both connected to the external ground line on the outside. Specifically, the site is first cleaned and the lines are laid out for positioning; the cast-in-place piles are bored, the steel cages are placed, and the first cast-in-place piles 1 and the second cast-in-place piles 2 are constructed.

[0034] The first cast-in-place pile 1 corresponding to the position of the second crown beam 21 is provided with the waist beam 7, and a plurality of the braces 8 are provided between the waist beam 7 and the second crown beam 21. That is to say, the braces 8 are arranged on both sides of the road, the environments on both sides are not completely consistent, and the distance between the two sides of the road should not be too large; the braces 8 are arranged between the crown beam and the waist beam 7 of the pile, so that the pile anchor structures on both sides are connected to the braces 8 as a whole, which is conducive to reducing the displacement of the pile and nearby structures, reducing the internal force of the pile body, and improving the safety performance of the high slope anchor-pull pile-sheet wall.

[0035] The prestressed anchor cables 6 are arranged obliquely downward, and the arrangement position of the prestressed anchor cables 6 in the bottom row is not greater than 0.5m of the bottom depth of the first space. It should be explained that the arrangement position of the prestressed anchor cables 6 in the bottom row is not greater than 0.5m of the bottom depth of the first space, which means that the excavation is first carried out to 0.5m below the position where the prestressed anchor cables 6 are to be set, that is, the excavation distance is 0.5m below the position of the prestressed anchor cables 6 in the bottom row to be set. The excavation of the foundation pit downward always changes with the setting of the prestressed anchor cables 6 in the bottom row, but the distance from the prestressed anchor cables 6 remains unchanged after excavating 0.5m downward. In a specific embodiment, excavation is first carried out to 0.5 m below the position of the first row of prestressed anchor cables 6 to construct the first row of prestressed anchor cables 6; then excavation is carried out to 0.5 m below the position of the brace 8 to construct the second crown beam 21 and the waist beam 7, and the brace 8 is supported between the second crown beam 21 and the waist beam 7, so that the second crown beam 21, the waist beam 7, and the brace 8 are connected into a whole, constraining each other and transmitting force to each other; the second and third rows of prestressed anchor cables 6 are excavated and constructed in sequence.

[0036] The brace 8 is connected to the first cast-in-place pile 1 and the second cast-in-place pile 2 as a whole to form a brace 8 system structure. That is, by arranging the brace 8 between the first cast-in-place pile 1 and the second cast-in-place pile 2, the reinforcement system can be made more stable, the number of prestressed anchor cables 6 is reduced, the pile body reinforcement is reduced, the engineering cost is saved, and the engineering economy is beneficial.

[0037] Please see attached Figure 1 There are multiple first cast-in-place piles 1 and second cast-in-place piles 2. The prestressed anchor cable 6 on the side of the first cast-in-place pile 1 is arranged between the two first cast-in-place piles 1, and the prestressed anchor cable 6 on the side of the second cast-in-place pile 2 is arranged between the two second cast-in-place piles 2. The first cast-in-place piles 1 and the second cast-in-place piles 2 are arranged at intervals with the prestressed anchor cables 6, and the prestressed anchor cables 6 and the first cast-in-place piles 1 and the second cast-in-place piles 2 form a pile-anchor structure.

[0038] The prestressed anchor cables 6 are arranged in multiple rows, and one side of the multiple rows of prestressed anchor cables 6 is respectively connected to the multiple rows of waist beams 7, and the spacing distance between the double rows of prestressed anchor cables 6 at the upper part of the first cast-in-place pile 1 and the second cast-in-place pile 2 is greater than the spacing distance between the double rows of prestressed anchor cables 6 at the lower part of the cast-in-place pile. In other words, the prestressed anchor cables 6 are fixed on the waist beams 7, and the waist beams 7 are respectively fixedly connected to the first cast-in-place pile 1 and the second cast-in-place pile 2, and the prestressed anchor cables 6 form a stable pile-anchor structure with the first cast-in-place pile 1 and the second cast-in-place pile 2.

[0039] Please see attached Figure 2 The spacing distance between the double rows of prestressed anchor cables 6 at the upper part of the first bored pile 1 and the second bored pile 2 is greater than the spacing distance between the double rows of prestressed anchor cables 6 at the lower part of the bored pile, that is, the spacing between the upper prestressed anchor cables 6 is greater than the spacing between the lower prestressed anchor cables 6. The purpose is to make the lower support more firm. In comparison, the anchoring force borne by the upper prestressed anchor cables 6 is smaller.

[0040] Please see attached Figure 4 , Attachment Figure 5 The waist beam 7 includes a first waist beam 71 arranged on the first cast-in-place pile 1 and a second waist beam 72 arranged on the second cast-in-place pile 2. There are multiple first waist beams 71 and second waist beams 72. The first waist beam 71 and the second waist beam 72 are arranged symmetrically below the lower end of the second crown beam 21. It should be explained that because the height of the first cast-in-place pile 1 is higher than that of the second cast-in-place pile 2, and the first waist beam 71 is also arranged on the first cast-in-place pile 1 between the heights of the first crown beam 11 and the second crown beam 21, but the first waist beam 71 and the second waist beam 72 are arranged below the lower end of the second crown beam 21, that is, the positions are relatively arranged and the heights are set in the same manner.

[0041] Taking a certain anchor-pull pile-sheet wall project as an example, this embodiment also provides a construction method for a bracing system of a road anchor-pull pile-sheet wall, comprising the following steps:

[0042] S1. Clean the site and lay out the lines;

[0043] S2, bored piles are formed, steel cages are placed in, and the first bored pile 1 and the second bored pile 2 are constructed;

[0044] S3, excavate to 0.5m below the position of the first row of prestressed anchor cables 6, and construct the first row of prestressed anchor cables 6;

[0045] S4, excavate to 0.5m below the position of the support 8, construct the first crown beam 11, the second crown beam 21, and the waist beam 7, and set the support 8 between the second crown beam 21 and the waist beam 7, so that the second crown beam 21, the waist beam 7, and the support 8 are connected into a whole, constrained and transmitted to each other;

[0046] S5, excavating and constructing the second row of prestressed anchor cables 6 and the third row of prestressed anchor cables 6 in sequence;

[0047] S5, excavating and constructing the second row of prestressed anchor cables 6 and the third row of prestressed anchor cables 6 in sequence.

[0048] The construction method of the support system is adopted to set the support 8 between the top beam and the waist beam 7 of the anchor-pull pile-slab wall on both sides of the road to reduce the displacement of the piles and improve the safety performance of the high slope.

[0049] In summary, the bracing system is configured by arranging braces 8 between the crown beam and the waist beam 7 of the piles on both sides of the road, so that the pile anchor structures on both sides are connected to the braces 8 as a whole, which is beneficial to reducing the displacement of the piles and nearby structures, reducing the internal force of the pile body, and improving the safety performance of the high slope anchor-type pile-board wall; by arranging the braces 8, the number of prestressed anchor cables 6 can be reduced, the reinforcement of the pile body can be reduced, the project cost can be saved, and it is beneficial to the economy of the project.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A road anchor pile-sheet wall bracing system, characterized in that: include: The first cast-in-place pile and the second cast-in-place pile are arranged in parallel, and the first cast-in-place pile and the second cast-in-place pile divide the area to be constructed into a first space that can be excavated in the middle, a second space reinforced on both sides, and a third space, and the second space and the third space are respectively provided with prestressed anchor cables, and the prestressed anchor cables are respectively arranged at intervals corresponding to the first cast-in-place pile and the second cast-in-place pile in a one-to-one manner. A first crown beam is arranged on the upper part of the first cast-in-place pile, and a second crown beam is arranged on the upper part of the second cast-in-place pile. The pile bodies of the first cast-in-place pile and the second cast-in-place pile are both provided with waist beams, and a support is arranged on the upper part of the first space, and the support is fixedly connected to the waist beam and the second crown beam on the first cast-in-place pile.

2. The bracing system of the road anchor pile-sheet wall according to claim 1 is characterized in that: The length of the first cast-in-place pile is greater than that of the second cast-in-place pile, and the bottom of the first cast-in-place pile is flush with the bottom of the second cast-in-place pile.

3. The bracing system of the road anchor pile-sheet wall according to claim 1 is characterized in that: The first cast-in-place pile and the second cast-in-place pile are both provided with steel cages inside, and the outer sides of the first crown beam and the second crown beam are both connected to the external ground line.

4. The bracing system of the road anchor pile-sheet wall according to claim 1, characterized in that: The waist beam is arranged on the first cast-in-place pile corresponding to the position of the second crown beam, and a plurality of the braces are arranged between the waist beam and the second crown beam.

5. The bracing system of the road anchor pile-sheet wall according to claim 1, characterized in that: The prestressed anchor cables are arranged obliquely downward, and the arrangement position of the bottom row of the prestressed anchor cables is not greater than 0.5m from the bottom depth of the first space.

6. The bracing system of the road anchor pile-sheet wall according to claim 1, characterized in that: The brace is connected with the first cast-in-place pile and the second cast-in-place pile into a whole to form a brace system structure.

7. The bracing system of the road anchor pile-sheet wall according to claim 1, characterized in that: There are multiple first cast-in-place piles and second cast-in-place piles. The prestressed anchor cable on the side of the first cast-in-place pile is arranged between two of the first cast-in-place piles, and the prestressed anchor cable on the side of the second cast-in-place pile is arranged between two of the second cast-in-place piles. The first cast-in-place piles and the second cast-in-place piles are arranged at intervals with the prestressed anchor cables, and the prestressed anchor cables and the first cast-in-place piles and the second cast-in-place piles form a pile-anchor structure.

8. The bracing system of the road anchor pile-sheet wall according to claim 1, characterized in that: The prestressed anchor cables are arranged in multiple rows, and one side of the multiple rows of prestressed anchor cables is respectively connected to the multiple rows of waist beams, and the spacing distance between the double rows of prestressed anchor cables at the upper part of the first and second cast-in-place piles is greater than the spacing distance between the double rows of prestressed anchor cables at the lower part of the cast-in-place piles.

9. The bracing system of the road anchor pile-sheet wall according to claim 1, characterized in that: The waist beam comprises a first waist beam arranged on the first cast-in-place pile and a second waist beam arranged on the second cast-in-place pile. Multiple first waist beams and multiple second waist beams are arranged. The first waist beam and the second waist beam which are lower than the lower end of the second crown beam are symmetrically arranged.

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