CN115387323A - Assembled underground continuous wall connecting joint and construction method thereof - Google Patents
Assembled underground continuous wall connecting joint and construction method thereof Download PDFInfo
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- CN115387323A CN115387323A CN202210965108.9A CN202210965108A CN115387323A CN 115387323 A CN115387323 A CN 115387323A CN 202210965108 A CN202210965108 A CN 202210965108A CN 115387323 A CN115387323 A CN 115387323A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D29/00—Independent underground or underwater structures; Retaining walls
- E02D29/16—Arrangement or construction of joints in foundation structures
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/14—Sealing joints between adjacent sheet piles
Abstract
The invention provides an assembled underground continuous wall connecting node and a construction method thereof. The assembly segment of the diaphragm wall is divided into an A-type wall sheet and a K-type wall sheet, the A-type wall sheet is used for assembling the conventional segment, and the K-type wall sheet is used for assembling the A-type node and the K-type node. The A type node is embedded prismatic, when conventional section wall piece is assembled, can hoist and mount A type node behind the A type wall piece earlier, does not influence the hoist and mount progress. The K-shaped node is I-shaped, is inserted between the two sections of conventional wall sheets, can extrude and compact the gap between the conventional section wall sheets, improves the water stopping effect, and increases the integrity of the assembled underground diaphragm wall. The invention can improve the integrity of the assembly structure and has good water stopping effect.
Description
Technical Field
The invention relates to an assembly type underground continuous wall connecting joint and a construction method thereof.
Background
With the acceleration of urban construction process, the development and utilization of underground space are accelerated gradually, and meanwhile, the environment faced by underground space development is increasingly complex. Most of coastal cities are in soft soil areas, and the foundation pit enclosure structure mainly adopts an underground continuous wall form. The underground continuous wall is the preferred structural form for deep foundation construction and deep foundation pit support, and has been widely applied in various places all over the world. The underground continuous wall is suitable for construction in dense areas of urban buildings, has the characteristics of high wall rigidity and good seepage-proofing performance, and can be suitable for various geological conditions. The assembled underground continuous wall is used as a novel underground continuous wall structural form, and assembled wall section assembling is adopted to replace traditional fore shaft pipe and joint box joint construction, so that the cost of a large amount of labor and machinery is reduced, and the idea of developing an assembled green building in China is responded. In the traditional design method of the assembly type ground connecting wall, the joints between the ground wall panels are mostly connected in a socket joint manner, so that the connection effect and the water stopping performance cannot be ensured, and finally, the joint water leakage is caused.
Disclosure of Invention
The invention aims to provide an assembly type underground continuous wall connecting node and a construction method thereof.
In order to solve the above problems, the present invention provides an assembled underground diaphragm wall connection node, comprising:
the wall comprises A-shaped wall sheets, a plurality of B-shaped wall sheets and a plurality of C-shaped wall sheets, wherein two ends of each A-shaped wall sheet are respectively in a V shape, and the A-shaped wall sheets are connected end to form a conventional section;
the wall comprises K-shaped wall sheets, wherein one end of each K-shaped wall sheet is V-shaped, the other end of each K-shaped wall sheet is semi-I-shaped, the two K-shaped wall sheets are connected end to form a special section, and the special section is arranged between two conventional sections;
the A-type node is connected between the V-shaped ends of two adjacent A-type wall pieces in the conventional section or between the V-shaped ends of the A-type wall pieces and the K-type wall pieces of the adjacent conventional section and the special section, and the A-type node is of a prismatic type;
and the K-shaped nodes are connected between the half I-shaped ends of the two adjacent K-shaped wall sheets of the special section and are I-shaped.
Furthermore, in the above-mentioned assembled underground continuous wall connected node, the edge of A type node and K type node is provided with the rubber sealing rod respectively.
Furthermore, in the connection node of the assembled underground continuous wall, prestressed steel strands are respectively arranged in the A-type node and the K-type node.
Further, in the above fabricated underground diaphragm wall connection node, the a-type node includes: the first upper node section and the first lower node section are connected through a first flange.
Furthermore, in the fabricated underground diaphragm wall connection node, prestressed steel strands are respectively arranged in the first upper node section and the first lower node section.
Furthermore, in the above assembled underground continuous wall connection node, a first prestressed anchor plate is arranged at the bottom end of the first lower node section, and the first prestressed anchor plate is connected with the prestressed steel stranded wires in the first lower node section.
Further, in the above-mentioned assembled underground continuous wall connected node, the K type node includes: and the second upper node section is connected with the second lower node section through a second flange.
Furthermore, in the above assembled underground continuous wall connected node, be provided with prestressed steel strand in second upper portion node section and the second lower part node section respectively.
Furthermore, in the fabricated underground continuous wall connection node, a second prestressed anchor plate is arranged at the bottom end of the second lower node section, the second prestressed anchor plate is connected with a prestressed steel strand in the second lower node section, and the lower part of the second prestressed anchor plate is connected with a prismatic boot foot through a third flange.
According to another aspect of the present invention, there is also provided a construction method of the above fabricated underground diaphragm wall connection node, including:
firstly hoisting an A-type wall sheet, and then inserting an A-type node into a gap of the A-type wall sheet to form a conventional section;
a special section is arranged between the two conventional sections, an A-type node is inserted between the special section and the conventional sections, and then a K-type node is inserted between two adjacent K-type wall sheets of the special section, so that the conventional sections on two sides are compacted through the K-type node.
Compared with the prior art, the connecting node is divided into an A-type node and a K-type node, the A-type node is used for connecting the conventional section assembling nodes, and the K-type node is used for connecting the two conventional section assembling sections. The assembly segment of the diaphragm wall is divided into an A-type wall sheet and a K-type wall sheet, the A-type wall sheet is used for assembling the conventional segment, and the K-type wall sheet is used for assembling the A-type node and the K-type node. The A type node is embedded prismatic, when conventional section wall piece is assembled, can hoist and mount A type node behind the A type wall piece earlier, does not influence the hoist and mount progress. The K-shaped node is I-shaped, is inserted between the two sections of conventional wall sheets, can extrude and compact the gap between the conventional section wall sheets, improves the water stopping effect, and increases the integrity of the assembled underground diaphragm wall. The novel assembly type underground continuous wall connecting node is used for solving the problems that the assembly type underground continuous wall connecting node is poor in water stopping effect and poor in integrity of an assembly structure, can improve the integrity of the assembly structure, and has a good water stopping effect. The invention has fast assembling construction speed, and the node hoisting does not influence the hoisting overall construction progress; the self-sealing performance is good, the conventional wall sheets at two sides can be compacted when the K-shaped node is hoisted, the gap between each two walls is compacted, and the integrity of the assembled type diaphragm wall and the water-stopping performance of the connecting joint are improved; the construction method is environment-friendly, and construction can be completed only by hoisting machinery.
Drawings
FIG. 1 is a schematic view of an A-type node of a fabricated underground diaphragm wall connection node according to an embodiment of the present invention;
FIG. 2 is a schematic view of a K-type node of the fabricated underground diaphragm wall connection node according to an embodiment of the present invention;
FIG. 3 is a schematic view of an A-shaped wall segment of an assembled underground diaphragm wall connection node according to an embodiment of the present invention;
FIG. 4 is a schematic view of a K-shaped wall segment of an assembled underground diaphragm wall connection node according to an embodiment of the present invention;
FIG. 5 is an A-node elevation view of an assembled diaphragm wall joint node according to an embodiment of the present invention;
FIG. 6 is an elevation view of a K-shaped joint of an assembled underground diaphragm wall connection joint according to an embodiment of the present invention;
FIG. 7 is a side view of a K-node boot foot of a fabricated underground diaphragm wall connection node according to an embodiment of the present invention;
fig. 8 is a view of an arrangement of fabricated diaphragm walls of a fabricated underground diaphragm wall connection node according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 8, the present invention provides an assembled underground diaphragm wall connection node, comprising:
the wall comprises A-shaped wall sheets 1, wherein two ends of each A-shaped wall sheet 1 are respectively V-shaped 2, and a plurality of A-shaped wall sheets 1 are connected end to form a conventional section;
the wall comprises K-shaped wall pieces 3, wherein one end of each K-shaped wall piece 3 is V-shaped 2, the other end of each K-shaped wall piece 3 is semi-I-shaped 4, the two K-shaped wall pieces 3 are connected end to form a special section, and the special section is arranged between two conventional sections;
the A-type node 5 is connected between the V-shaped ends of two adjacent A-type wall pieces 1 in the conventional section or between the V-shaped ends of the A-type wall pieces 1 and the K-type wall pieces 3 in the conventional section and the special section, and the A-type node 5 is prismatic;
and the K-shaped nodes 6 are connected between the half I-shaped ends 4 of the two adjacent K-shaped wall sheets 3 of the special section, and the K-shaped nodes 6 are I-shaped.
Here, the connection node is divided into an a-type node and a K-type node, the a-type node is used for connection of the conventional segment assembly nodes, and the K-type node is used for interconnection of two conventional segment assembly segments. The assembly segment of the diaphragm wall is divided into an A-shaped wall sheet and a K-shaped wall sheet, the A-shaped wall sheet is used for assembling the conventional segment, and the K-shaped wall sheet is used for assembling the A-shaped node and the K-shaped node. The A type node is embedded prismatic, when conventional section wall piece is assembled, can hoist and mount A type node behind the A type wall piece earlier, does not influence the hoist and mount progress. The K-shaped node is I-shaped, is inserted between two sections of conventional wall sheets, can extrude the clearance between the conventional section wall sheets densely, improves the water stopping effect, and increases the integrity of the assembled ground wall. The novel assembly type underground continuous wall connecting node is used for solving the problems that the assembly type underground continuous wall connecting node is poor in water stopping effect and assembly structure integrity, can improve the assembly structure integrity, and has a good water stopping effect. The invention has fast assembling construction speed, and the node hoisting does not influence the hoisting overall construction progress; the self-sealing performance is good, the conventional wall sheets at two sides can be compacted when the K-shaped node is hoisted, the gap between each two walls is compacted, and the integrity of the assembled type diaphragm wall and the water-stopping performance of the connecting joint are improved; the construction method is environment-friendly, and construction can be completed only by hoisting machinery.
In an embodiment of the connection node of the assembled underground continuous wall according to the present invention, as shown in fig. 1 and 2, rubber water-stop strips 7 are respectively disposed at the edges of the a-type node 5 and the K-type node 6.
Here, through the rubber sealing rod, can reach reliable stagnant water effect.
As shown in fig. 1 and 2, in an embodiment of the fabricated underground continuous wall connection node of the present invention, prestressed steel strands 8 are respectively disposed in the a-type node 5 and the K-type node 6.
Prestressed steel strands are arranged in the A-type node and the K-type node respectively and are used for improving the integrity of the nodes. Steel strands are arranged in the A-type node and the K-type node, so that prestress can be applied to the nodes, and the integrity of the nodes is improved.
As shown in fig. 5, in an embodiment of the fabricated underground diaphragm wall connection node of the present invention, the a-type node 5 includes: a first upper node section 51 and a first lower node section 52, said first upper node section 51 and first lower node section 52 being connected by a first flange 53 to improve the integrity of the node.
Here, a first rubber water stop 54 is further provided at the joint of the first flange 53.
As shown in fig. 5, in an embodiment of the fabricated underground diaphragm wall connection node of the present invention, the first upper node section 51 and the first lower node section 52 are respectively provided with prestressed steel strands 8 therein to improve the integrity of the node.
In an embodiment of the fabricated underground continuous wall connection node according to the present invention, as shown in fig. 5, a first prestressed anchor plate 55 is disposed at the bottom end of the first lower node section 52, and the first prestressed anchor plate 55 is connected to the prestressed steel strand 8 in the first lower node section 52, so as to improve the integrity of the node.
As shown in fig. 6, in an embodiment of the fabricated underground diaphragm wall connection node of the present invention, the K-type node 6 includes: a second upper node section 61 and a second lower node section 62, said second upper node section 61 and second lower node section 62 being connected by a second flange 63 to improve the integrity of the node.
Here, a second rubber water stop 64 is further provided at the joint of the second flange 63.
As shown in fig. 6, in an embodiment of the fabricated underground diaphragm wall connection node of the present invention, the second upper node section 61 and the second lower node section 62 are respectively provided with prestressed steel strands 8 therein to improve the integrity of the node.
As shown in fig. 6, in an embodiment of the fabricated underground continuous wall connection node of the present invention, a second prestressed anchor plate 65 is disposed at the bottom end of the second lower node section 62, the second prestressed anchor plate 65 is connected to the prestressed steel strand 8 in the second lower node section 62, and a prismatic shoe 67 is connected to the lower portion of the second prestressed anchor plate 65 through a third flange 66, so as to improve the integrity of the node.
The invention also provides a construction method of the assembly type underground continuous wall connecting node, which comprises the following steps:
step S1, hoisting an A-type wall sheet, and inserting an A-type node into a gap of the A-type wall sheet to form a conventional section;
and S2, arranging a special section between the two conventional sections, inserting an A-type node between the special section and the conventional sections, and then inserting a K-type node between two adjacent K-type wall sheets of the special section so as to compact the conventional sections at two sides through the K-type node.
And the hoisting is performed in sequence, and the joints can be assembled by adopting K-shaped nodes when the last ground wall is hoisted.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An assembled underground continuous wall connected node, comprising:
the wall comprises A-shaped wall sheets, a plurality of B-shaped wall sheets and a plurality of C-shaped wall sheets, wherein two ends of each A-shaped wall sheet are respectively in a V shape, and the A-shaped wall sheets are connected end to form a conventional section;
the wall comprises K-shaped wall sheets, wherein one end of each K-shaped wall sheet is V-shaped, the other end of each K-shaped wall sheet is semi-I-shaped, the two K-shaped wall sheets are connected end to form a special section, and the special section is arranged between two conventional sections;
the A-type node is connected between the V-shaped ends of two adjacent A-type wall pieces in the conventional section or between the V-shaped ends of the A-type wall pieces and the K-type wall pieces of the adjacent conventional section and the special section, and the A-type node is of a prismatic type;
and the K-shaped nodes are connected between the half I-shaped ends of the two adjacent K-shaped wall sheets of the special section and are I-shaped.
2. The fabricated underground continuous wall connection node of claim 1, wherein rubber water stop strips are respectively arranged at the edges of the A-type node and the K-type node.
3. The fabricated underground diaphragm wall connecting node as claimed in claim 1, wherein prestressed steel strands are respectively arranged in the a-type node and the K-type node.
4. The fabricated underground diaphragm wall connecting node as claimed in claim 1, wherein the a-type node comprises: the first upper node section and the first lower node section are connected through a first flange.
5. The fabricated underground diaphragm wall connecting node as claimed in claim 4, wherein prestressed steel strands are provided in the first upper node section and the first lower node section, respectively.
6. The fabricated underground continuous wall connection node of claim 5, wherein the bottom end of the first lower node section is provided with a first prestressed anchor plate connected with the prestressed steel strand in the first lower node section.
7. The fabricated underground diaphragm wall connecting node as claimed in claim 1, wherein the K-type node comprises: and the second upper node section and the second lower node section are connected through a second flange.
8. The fabricated underground diaphragm wall connecting node as claimed in claim 7, wherein prestressed steel strands are provided in the second upper node section and the second lower node section, respectively.
9. The fabricated underground continuous wall connection node of claim 8, wherein a second pre-stressed anchor plate is provided at the bottom end of the second lower node section, the second pre-stressed anchor plate is connected with the pre-stressed steel strand in the second lower node section, and a prismatic shoe foot is connected to the lower portion of the second pre-stressed anchor plate through a third flange.
10. A construction method of the fabricated underground diaphragm wall connection node as claimed in any one of claims 1 to 9, comprising:
firstly hoisting an A-shaped wall sheet, and then inserting an A-shaped node into a gap of the A-shaped wall sheet to form a conventional section;
a special section is arranged between the two conventional sections, an A-type node is inserted between the special section and the conventional sections, and then a K-type node is inserted between two adjacent K-type wall sheets of the special section, so that the conventional sections on two sides are compacted through the K-type node.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210965108.9A CN115387323A (en) | 2022-08-12 | 2022-08-12 | Assembled underground continuous wall connecting joint and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210965108.9A CN115387323A (en) | 2022-08-12 | 2022-08-12 | Assembled underground continuous wall connecting joint and construction method thereof |
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| CN115387323A true CN115387323A (en) | 2022-11-25 |
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| CN202210965108.9A Pending CN115387323A (en) | 2022-08-12 | 2022-08-12 | Assembled underground continuous wall connecting joint and construction method thereof |
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