CN212427155U - Tongue-and-groove type prefabricated underground continuous wall structure - Google Patents

Tongue-and-groove type prefabricated underground continuous wall structure Download PDF

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CN212427155U
CN212427155U CN202021483430.0U CN202021483430U CN212427155U CN 212427155 U CN212427155 U CN 212427155U CN 202021483430 U CN202021483430 U CN 202021483430U CN 212427155 U CN212427155 U CN 212427155U
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China
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prefabricated
reinforced concrete
tongue
groove
main
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张延年
杜松岩
董宁
李琦琦
陈昊
刘柏男
张文洁
崔长青
海洪
王亭
张于于
康楠
王铁源
闫明程
于洋
李志军
陈志燕
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张延年
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Abstract

The utility model provides a prefabricated underground continuous wall structure of tongue-and-groove formula belongs to underground envelope field, including prefabricated hollow reinforced concrete wall section main part, prefabricated cavity, coupling groove, joint tenon piece, pre-buried spring, tenon piece recess, slip casting hole, connecting bolt hole, steel pipe bolt hole, lug, prefabricated underground continuous wall structure of tongue-and-groove formula is formed by the concatenation of prefabricated hollow reinforced concrete wall section main part, and prefabricated hollow reinforced concrete wall section main part left side is equipped with coupling groove, and the right side is equipped with the joint tenon piece, the utility model has the advantages of simple structure and convenient connection, construction difficulty, installation are complicated, construction loaded down with trivial details, produce a large amount of waste materials scheduling problem when can effectual solution underground continuous wall is cast-in situ.

Description

Tongue-and-groove type prefabricated underground continuous wall structure
Technical Field
The utility model belongs to secret envelope field especially relates to a prefabricated underground continuous wall structure of tongue-and-groove type.
Background
The development of national economy accelerates the process of urbanization, the construction of high-rise and subway stations in the limited urban areas needs deep foundation pits, and the underground continuous wall has the advantages of high rigidity, low noise, small deformation of the foundation pit support, strong seepage resistance and the like compared with other traditional foundation pit support modes, so that the underground continuous wall is used as a support structure of the deep foundation pits, and is safe and reliable. The cast-in-place underground continuous wall is the most widely used structural form at present, but at present, when the underground continuous wall is constructed in a complicated geological condition such as a sandy soil stratum, the problem of groove wall stability in the grooving construction process of the underground continuous wall and the problem of concrete pouring quality caused by groove wall collapse are difficult to solve, so that wall quality defects such as exposed ribs and holes on the surface, local leakage of a wall body and a joint, structural damage of a wall body reinforcement cage and the like are generated, and the safety and the waterproof effect of the underground continuous wall structure are influenced.
The underground continuous wall is a foundation engineering, and adopts a trenching machine on the ground, and under the condition of slurry wall protection, a long and narrow deep groove is excavated along the peripheral axis of the deep excavation engineering, after the groove is cleaned, a steel reinforcement cage is hung in the groove, then underwater concrete is poured by using a conduit method to construct a unit groove section, and the steps are carried out section by section, so that a continuous reinforced concrete wall is constructed underground to be used as a structure for intercepting water, preventing seepage, bearing and retaining water. However, during construction, if the construction method is not proper or the construction geological conditions are special, the problems that adjacent wall sections cannot be aligned and water leakage occurs may occur, and the subsequent construction is seriously affected.
Disclosure of Invention
For overcoming the not enough of prior art, the utility model provides a prefabricated underground continuous wall structure of tongue-and-groove type guarantees through mortise and tenon structure and steel pipe connection, spring that adjacent wall section aligns, prevents that adjacent wall section from leaking, strengthens the ability of shearing of wall section to through the cross connection of adjacent wall section, the overall stability of reinforcing structure.
In order to realize the purpose, the utility model discloses a technical scheme be:
a tongue-and-groove type prefabricated underground continuous wall structure comprises a prefabricated hollow reinforced concrete wall section main body, a prefabricated cavity, a connecting groove, connecting tenon blocks, embedded springs, tenon block grooves, grouting holes, connecting bolt holes, steel pipe bolt holes and lifting lugs, wherein the tongue-and-groove type prefabricated underground continuous wall structure is formed by splicing the prefabricated hollow reinforced concrete wall section main body; the middle part of the main body of the prefabricated hollow reinforced concrete wall section is provided with a prefabricated cavity, a steel pipe is embedded in the prefabricated cavity, and the outer side of the steel pipe is provided with a steel pipe bolt hole; the top surface of the main body of the prefabricated hollow reinforced concrete wall section is provided with a grouting hole and a lifting lug for lifting, and the grouting hole is communicated into the tenon block groove and the prefabricated cavity.
And furthermore, the connecting grooves of the main bodies of the left and right adjacent prefabricated hollow reinforced concrete wall sections are matched with the connecting tenon blocks for joint splicing, and after splicing, the connecting bolts penetrate through the connecting bolt holes and are fixed.
And further, the prefabricated hollow reinforced concrete wall section main bodies which are adjacent up and down are connected through steel pipes, and after the connection, bolts penetrate through bolt holes of the steel pipes and are fixed.
And further, the surface of the prefabricated hollow reinforced concrete wall section main body is coated with modified epoxy resin glue.
Furthermore, a longitudinal high-strength steel bar and a constructional steel bar are arranged in the main body of the prefabricated hollow reinforced concrete wall section.
And furthermore, the main bodies of the prefabricated hollow reinforced concrete wall sections are prefabricated in two length specifications, and the adjacent two rows of tongue-and-groove type prefabricated underground continuous wall structures are connected by adopting the main bodies of the prefabricated hollow reinforced concrete wall sections in different length specifications in a staggered joint mode.
The utility model discloses underground continuous wall is prefabricated reinforced concrete structure in advance, and simple structure and connection are convenient, can save a large amount of time for the construction in the construction of the underground continuous wall that cast-in-place is given first place, and can not produce a large amount of on-the-spot waste material scheduling problem, can the effectual underground continuous wall of solution construct difficulty, install complicacy, construction loaded down with trivial details, produce a large amount of waste materials scheduling problem when cast-in-place.
Drawings
Fig. 1 is a schematic structural diagram of a main body of a prefabricated hollow reinforced concrete wall section.
Fig. 2 is the utility model discloses prefabricated underground continuous wall of tongue-and-groove formula structure top view schematic diagram.
Fig. 3 is the side view schematic diagram of the tongue-and-groove prefabricated underground continuous wall structure of the utility model.
Fig. 4 is a schematic top view of the high-strength longitudinal steel bars and the structural steel bars.
Fig. 5 is a schematic side view of a high-strength longitudinal steel bar and a structural steel bar.
Fig. 6 is a schematic diagram of an embedded spring.
In the figure, 1 is a main body of a prefabricated hollow reinforced concrete wall section; 2 is a prefabricated cavity; 3 is a connecting groove; 4 is a connecting tenon block; 5, a pre-embedded spring; 6 is a tenon block groove; 7 is a grouting hole; 8 is a connecting bolt hole; 9 is a steel pipe bolt hole; 10 is a lifting lug; 11 is a longitudinal high-strength steel bar; 12 is a construction rebar.
Detailed Description
For further explanation of the present invention, the following detailed description of the present invention is provided with reference to the drawings and examples, which should not be construed as limiting the scope of the present invention.
Example (b): as shown in figures 1-6, the utility model relates to a tongue-and-groove prefabricated underground continuous wall structure, which comprises a prefabricated hollow reinforced concrete wall section main body 1, a prefabricated cavity 2, a connecting groove 3, a connecting tenon block 4 and a pre-embedded spring 5, the tenon block groove 6, the grouting hole 7, the connecting bolt hole 8, the steel pipe bolt hole 9 and the lifting lug 10, the tenon groove type prefabricated underground continuous wall structure is formed by splicing prefabricated hollow reinforced concrete wall section main bodies 1, the connecting groove 3 is arranged on the left side of the prefabricated hollow reinforced concrete wall section main body 1, the connecting tenon block 4 is arranged on the right side of the prefabricated hollow reinforced concrete wall section main body, the connecting groove 3 consists of a rectangular groove and a trapezoidal groove, the connecting bolt hole 8 is arranged on the left side and the right side of the rectangular groove, the embedded spring 5 is arranged on the lower side of the connecting bolt hole 8 of the rectangular groove, the connecting tenon block 4 consists of a rectangular tenon block and a trapezoidal tenon block, the connecting bolt hole 8 is arranged on; the middle part of the prefabricated hollow reinforced concrete wall section main body 1 is provided with a prefabricated cavity 2, a steel pipe is pre-embedded in the prefabricated cavity 2, and the outer side of the steel pipe is provided with a steel pipe bolt hole 9; the top surface of the main body 1 of the prefabricated hollow reinforced concrete wall section is provided with a grouting hole 7 and a lifting lug 10 for lifting, and the grouting hole 7 is communicated into the tenon block groove 6 and the prefabricated cavity 2.
And the connecting groove 3 and the connecting tenon block 4 of the left and right adjacent prefabricated hollow reinforced concrete wall section main bodies 1 are matched, jointed, spliced and fixed by penetrating through the connecting bolt hole 8 by using a bolt after splicing.
The prefabricated hollow reinforced concrete wall section main bodies 1 which are adjacent up and down are connected through steel pipes, and after the connection, bolts penetrate through the steel pipe bolt holes 9 and are fixed.
The surface of the prefabricated hollow reinforced concrete wall section main body 1 is coated with modified epoxy resin glue.
The prefabricated hollow reinforced concrete wall section main body 1 is internally provided with longitudinal high-strength steel bars 11 and constructional steel bars 12.
The prefabricated hollow reinforced concrete wall section main body 1 is prefabricated in two length specifications, and the two adjacent rows of tongue-and-groove prefabricated underground continuous wall structures are connected by adopting prefabricated hollow reinforced concrete wall section main bodies 1 with different length specifications in a staggered joint mode.
Specifically, the utility model discloses a construction method includes following step:
the method comprises the following steps: and manufacturing the prefabricated hollow reinforced concrete wall section main body on site or in a factory, and determining the size according to the practical transportation capacity and hoisting limit.
Step two: and determining the position of the groove section of the underground continuous wall through measurement, taking the position of the steel pipe as a grooving and excavating positioning center, excavating a groove at the preset position of the underground continuous wall, and pouring the guide wall of the underground continuous wall.
Step three: excavating to the designed depth, removing the bottom of the place to form slag, and positioning the steel pipe. The slurry is used for protecting the wall, the stability of the wall of the tank is ensured, and unqualified slurry is replaced in time in the tank forming process.
Step four: and hoisting the main body of the prefabricated hollow reinforced concrete wall section into the groove section by using a crane for splicing.
Step five: cleaning slurry of the cavity wall by using a drilling machine, pouring concrete from the bottom of the diaphragm wall after the slurry is qualified, pouring the top of the wall body, and standing.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims (6)

1. The utility model provides a prefabricated underground continuous wall structure of tongue-and-groove formula, includes prefabricated hollow reinforced concrete wall section main part (1), prefabricated cavity (2), connecting groove (3), connecting tenon piece (4), pre-buried spring (5), tenon piece recess (6), slip casting hole (7), connecting bolt hole (8), steel pipe bolt hole (9), lug (10), its characterized in that:
the tongue-and-groove type prefabricated underground continuous wall structure is formed by splicing prefabricated hollow reinforced concrete wall section main bodies (1), a connecting groove (3) is formed in the left side of each prefabricated hollow reinforced concrete wall section main body (1), a connecting tongue block (4) is arranged on the right side of each prefabricated hollow reinforced concrete wall section main body, each connecting groove (3) consists of a rectangular groove and a trapezoidal groove, connecting bolt holes (8) are formed in the left side and the right side of each rectangular groove, pre-embedded springs (5) are arranged on the lower sides of the connecting bolt holes (8) of the rectangular grooves, each connecting tongue block (4) consists of a rectangular tongue block and a trapezoidal tongue block, connecting bolt holes (8) are formed in the two sides of each rectangular tongue; the middle part of the prefabricated hollow reinforced concrete wall section main body (1) is provided with a prefabricated cavity (2), a steel pipe is pre-embedded in the prefabricated cavity (2), and the outer side of the steel pipe is provided with a steel pipe bolt hole (9); the top surface of the prefabricated hollow reinforced concrete wall section main body (1) is provided with a grouting hole (7) and a lifting lug (10) for lifting, and the grouting hole (7) is communicated into the tenon block groove (6) and the prefabricated cavity (2).
2. The tongue-and-groove type prefabricated underground continuous wall structure of claim 1, wherein: the connecting groove (3) and the connecting tenon block (4) of the prefabricated hollow reinforced concrete wall section main body (1) adjacent to the left and right are matched, jointed, spliced and fixed by penetrating through the connecting bolt hole (8) by using a bolt after splicing.
3. The tongue-and-groove type prefabricated underground continuous wall structure of claim 1, wherein: the prefabricated hollow reinforced concrete wall section main bodies (1) which are adjacent up and down are connected through steel pipes, and after the connection, bolts penetrate through steel pipe bolt holes (9) and are fixed.
4. The tongue-and-groove type prefabricated underground continuous wall structure of claim 1, wherein: the surface of the prefabricated hollow reinforced concrete wall section main body (1) is coated with modified epoxy resin glue.
5. The tongue-and-groove type prefabricated underground continuous wall structure of claim 1, wherein: the prefabricated hollow reinforced concrete wall section main body (1) is internally provided with longitudinal high-strength steel bars (11) and constructional steel bars (12).
6. The tongue-and-groove type prefabricated underground continuous wall structure of claim 1, wherein: the prefabricated hollow reinforced concrete wall section main body (1) is prefabricated according to two length specifications, and the adjacent two rows of tongue-and-groove type prefabricated underground continuous wall structures are connected by adopting prefabricated hollow reinforced concrete wall section main bodies (1) with different length specifications in a staggered joint mode.
CN202021483430.0U 2020-07-24 2020-07-24 Tongue-and-groove type prefabricated underground continuous wall structure Active CN212427155U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021483430.0U CN212427155U (en) 2020-07-24 2020-07-24 Tongue-and-groove type prefabricated underground continuous wall structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021483430.0U CN212427155U (en) 2020-07-24 2020-07-24 Tongue-and-groove type prefabricated underground continuous wall structure

Publications (1)

Publication Number Publication Date
CN212427155U true CN212427155U (en) 2021-01-29

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ID=74273492

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021483430.0U Active CN212427155U (en) 2020-07-24 2020-07-24 Tongue-and-groove type prefabricated underground continuous wall structure

Country Status (1)

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CN (1) CN212427155U (en)

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