CN111733853A - 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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Publication number
CN111733853A
CN111733853A CN202010722509.2A CN202010722509A CN111733853A CN 111733853 A CN111733853 A CN 111733853A CN 202010722509 A CN202010722509 A CN 202010722509A CN 111733853 A CN111733853 A CN 111733853A
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CN
China
Prior art keywords
prefabricated
tongue
reinforced concrete
groove
hollow reinforced
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010722509.2A
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Chinese (zh)
Inventor
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
Original Assignee
张延年
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 张延年 filed Critical 张延年
Priority to CN202010722509.2A priority Critical patent/CN111733853A/en
Publication of CN111733853A publication Critical patent/CN111733853A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D19/00Keeping dry foundation sites or other areas in the ground
    • E02D19/06Restraining of underground water
    • E02D19/12Restraining of underground water by damming or interrupting the passage of underground water
    • E02D19/18Restraining of underground water by damming or interrupting the passage of underground water by making use of sealing aprons, e.g. diaphragms made from bituminous or clay material
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/02Sheet piles or sheet pile bulkheads
    • E02D5/03Prefabricated parts, e.g. composite sheet piles
    • E02D5/10Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete
    • EFIXED CONSTRUCTIONS
    • E02HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02DFOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
    • E02D5/00Bulkheads, piles, or other structural elements specially adapted to foundation engineering
    • E02D5/02Sheet piles or sheet pile bulkheads
    • E02D5/03Prefabricated parts, e.g. composite sheet piles
    • E02D5/10Prefabricated parts, e.g. composite sheet piles made of concrete or reinforced concrete
    • E02D5/12Locking forms; Edge joints; Pile crossings; Branch pieces

Abstract

The invention provides a tongue-and-groove type prefabricated underground continuous wall structure, which belongs to the field of underground enclosing structures and comprises a prefabricated hollow reinforced concrete wall section main body, a prefabricated cavity, a connecting groove, a connecting tenon block, a pre-embedded spring, a tenon block groove, a grouting hole, a connecting bolt hole, a steel pipe bolt hole and a lifting lug.

Description

Tongue-and-groove type prefabricated underground continuous wall structure
Technical Field
The invention belongs to the field of underground enclosing structures, and particularly relates to a tongue-and-groove type prefabricated underground continuous wall structure.
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
In order to overcome the defects of the prior art, the invention provides a mortise and tenon type prefabricated underground continuous wall structure, which ensures that adjacent wall sections are aligned through mortise and tenon structures, steel pipe connection and springs, prevents the adjacent wall sections from leaking water, enhances the shearing resistance of the wall sections, and enhances the overall stability of the structure through staggered connection of the adjacent wall sections.
In order to achieve the purpose, the invention adopts the technical scheme that:
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 underground continuous wall is a prefabricated reinforced concrete structure, is simple in structure and convenient to connect, can save a large amount of time for construction in the construction of the existing cast-in-place mainly underground continuous wall, does not generate the problems of a large amount of waste materials on site and the like, and can effectively solve the problems of difficult construction, complex installation, complex construction, generation of a large amount of waste materials and the like in the cast-in-place process of the underground continuous wall.
Drawings
Fig. 1 is a schematic structural diagram of a main body of a prefabricated hollow reinforced concrete wall section.
Fig. 2 is a schematic top view of the structure of the tongue-and-groove type prefabricated underground continuous wall according to the present invention.
Fig. 3 is a schematic side view of the structure of the tongue-and-groove type prefabricated underground diaphragm wall of the present invention.
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
In order to further illustrate the present invention, the following detailed description of the present invention is given with reference to the accompanying 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 invention relates to a tongue-and-groove type 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 an 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 construction method of the invention comprises the following steps:
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, various 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.
CN202010722509.2A 2020-07-24 2020-07-24 Tongue-and-groove type prefabricated underground continuous wall structure Pending CN111733853A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010722509.2A CN111733853A (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
CN202010722509.2A CN111733853A (en) 2020-07-24 2020-07-24 Tongue-and-groove type prefabricated underground continuous wall structure

Publications (1)

Publication Number Publication Date
CN111733853A true CN111733853A (en) 2020-10-02

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Application Number Title Priority Date Filing Date
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Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112627214A (en) * 2020-10-30 2021-04-09 安徽柱石建设工程有限公司 Concrete continuous wall structure and construction method thereof
CN113279392A (en) * 2021-06-10 2021-08-20 中煤江南(佛山)建设发展有限公司 Prefabricated guide wall of underground continuous wall

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112627214A (en) * 2020-10-30 2021-04-09 安徽柱石建设工程有限公司 Concrete continuous wall structure and construction method thereof
CN113279392A (en) * 2021-06-10 2021-08-20 中煤江南(佛山)建设发展有限公司 Prefabricated guide wall of underground continuous wall

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