WO2018177307A1 - Fabricated underground building and construction method thereof - Google Patents

Abstract

A fabricated underground building, comprising walls (1) and piles (2). Adjacent walls (1) are connected into a whole by means of piles (2); a concave-convex embedded structure is provided at each joint between the walls (1) and the piles (2); a convex portion is provided at the joint of the wall (1) and a concave portion is provided at the joint of a pile (2); the convex portion of the wall (1) is embedded into the concave portion of the pile (2); the bottom and side surfaces of the walls (1) are provided with tracks (4) where chain cutters (3) can operate therein; the chain cutter (3) is mounted on the track (4) during construction; the width of the chain cutter (3) is smaller than that of a recess opening of the pile (2); the chain cutter (3) is composed of a chain (3-1) and a cutter (3-2) mounted on the chain (3-1); during construction, the chain cutter (3) merely excavates rock at the bottom of the wall (1); the chain cutter (3) running from bottom to top brings the excavated rock upward from the bottom of the wall (1); and the wall (1) and the bottom chain cutter (3) move downwards simultaneously. Also disclosed is a construction method of the fabricated underground building. The wall (1) and the pile (2) are prefabricated by a factory and are provided with the chain cutter (3) for excavating rock at the bottom; after the pile (2) is constructed to a set depth, the wall (1) is then constructed. The construction is simple, the construction period is short, and the costs are low.

Description

Assembled underground building and construction method thereof Technical field

The invention relates to a prefabricated underground building and a construction method thereof, and belongs to the technical field of civil engineering foundation construction.

Background technique

The existing large-scale basic technology adopts the overall excavation construction method, with long construction period, high labor intensity and poor working environment safety.

Summary of the invention

The invention provides a fabricated underground building and a construction method thereof, the purpose of which is to overcome the defects of the prior art, and the main advantages thereof: the assembled underground building is composed of walls and piles, and the wall and the pile itself are excavated. Chain cutters at the bottom of the rock, prefabricated walls and piles of the factory, on-site block or overall drop, simple construction, short construction period and low cost.

The technical solution of the invention: the assembled underground building comprises a wall 1 and a pile 2, and the adjacent walls 1 are integrally connected by the pile 2, and the structure of the connection between the wall 1 and the pile 2 adopts a concave-convex embedded structure. The joint of the wall 1 is a convex portion, and the joint of the pile 2 is a concave portion, each concave portion is a groove having an opening in the middle of the cavity, the convex portion of the wall 1 is embedded in the concave portion of the pile 2, and the convex portion of the wall 1 The thickness of the joint between the end and the wall 1 is greater than or equal to the thickness of the wall 1. The width of the groove portion of the pile 2 is greater than or equal to the thickness of the joint between the end of the wall 1 and the wall 1, and is smaller than the maximum of the convex portion at the interface of the wall 1. Thickness; wall 1 includes a wall 1-1, a wall 1-2 and a cross wall 1-3; the pile 2 is divided into two walls, three walls and four walls; during construction, the pile 2 is first After the depth is set, the wall 1 is re-constructed; the bottom and side of the wall 1 are provided with a track 4 running on the chain cutter 3, and the chain 4 is mounted on the track 4 during construction. The width of the chain cutter 3 is smaller than the width of the groove of the pile 2. The chain cutter 3 is composed of a chain 3-1 and a cutter 3-2 mounted on the chain 3-1. When the chain cutter 3 works, only the rock at the bottom of the wall 1 is excavated, and the chain cutter 3 runs from the bottom to the top. A bottom wall with excavated rock and soil to the top, and a bottom wall of a chain cutter 3 run down.

The bottom and the side of the pile 2 are provided with a track 4 on which the chain cutter 3 is operated. During the construction, the track 4 is provided with a chain cutter 3, and the chain cutter 3 is composed of a chain 3-1 and a cutter 3-2 mounted on the chain 3-1. When the knife 3 is working, only the rock soil at the bottom of the pile 2 is excavated, and the excavated rock soil at the bottom of the pile 2 is brought to the top by the chain knife 3 running downward and upward, and the pile 2 and the bottom chain knife 3 are simultaneously operated downward.

The invention has the advantages that the wall and the pile itself have a chain cutter for excavating the bottom rock, and the factory prefabrication, on-site block or overall descending construction method, the construction is simple, the construction period is short, and the cost is low.

DRAWINGS

1 is a partial schematic view of a prefabricated underground building integrally formed by connecting the wall 1 and the pile 2, and is also a structural schematic view of the structure of the joint between the wall 1 and the pile 2 adopting a concave-convex embedded structure, and is also operated by the side chain cutter 3 of the wall 1 The schematic diagram of the structure of the track is also a structural diagram of the thickness t of the joint between the end of the boss and the wall 1;

2 is a schematic view of the A direction of FIG. 1 , and is a structural schematic view of the construction wall 1 after the construction pile 2 is set to a depth, and is also composed of a driving power unit 5-1, a spoil processing unit 5-2 and a frame 5-3. Schematic diagram of the chain cutter driving device 5;

Figure 3 is a BB view of Figure 2 (with the chain cutter 3 removed), also a schematic view of the structure of the rail 4 running on the bottom chain cutter 3 of the wall 1-1, and also the mud nozzle 6 of the mud pipeline device 6 on the wall 1-1. 1 and a schematic view of the structure of the mud pipeline 6-2;

4 is a schematic structural view of the chain cutter 3, and is also a schematic structural view of the chain 3-1 and the cutter 3-2;

FIG. 5 is a schematic structural view of a chain cutter 3 capable of realizing space bending, and is also a schematic structural view of the chain 3-1 and the cutter 3-2;

6 is a schematic structural view of the T-shaped wall 1-2, and is also a structural schematic view of the junction of the three end portions of the wall 1-2 being a convex portion, and is also a thickness t of the junction of the end of the wall 1-2 convex portion and the wall 1-2. a structural schematic view of the thickness greater than the middle of the wall 1-2;

7 is a schematic structural view of the cross wall 1-3, and is also a structural schematic view of the joint of the wall 1-3 being a convex portion, and the thickness t of the connection between the end of the wall 1-3 and the wall 1-3 is greater than the wall 1- 3 structural schematic diagram of the thickness of the middle;

8 is a schematic structural view of the chain cutter driving device 5 composed of the driving power device 5-1, the spoil processing device 5-2, and the frame 5-3, and is also a rocker driving the chain knife 3 to excavate the bottom of the pile 2A. Schematic diagram of the construction structure of the soil, and descending together;

Figure 9 is a view of the A-A of Figure 8, and is also a schematic structural view of the construction state of the I-type tooling 2-1 in the pile 2A;

Figure 10 is a schematic view showing the structure of the pile 2A having two wall 1 interfaces, the joint being a concave portion, and the structure of the I-type tooling 2-1 provided with the chain cutter running track 4;

Figure 11 is a schematic structural view showing the construction state of the Type I tooling 2-1 and the Type II tooling 2-2 in the pile 2B;

12 is a structural schematic view of the pile 2B having three recessed interfaces, and is also a schematic structural view of the type II tooling 2-2, which is also a structural schematic view of the rail 4 of the side chain cutter 3 of the pile 2B, and also the bottom edge of the rail 4. Schematic diagram of the side cover 7;

Figure 13 is a schematic structural view showing the construction state of the Type I tooling 2-1 and the Type II tooling 2-2 in the pile 2C;

Figure 14 is a schematic view showing the structure of the pile 2C having four recessed interfaces;

15 is a schematic structural view showing a structure in which a joint between a wall 1 and a pile 2A adopts a concave-convex embedded structure;

Figure 16 is a schematic view showing the structure in which the pile 2B is transported to the installation place, and the chain cutter 3 and the chain cutter driving device 5 are attached to the pile 2B;

Figure 17 is a structural schematic view showing that the chain cutter driving device 5 drives the chain cutter 3 to excavate the bottom of the pile 2B, and the pile 2B and the chain cutter 3 are lowered into position;

Figure 18 is a schematic view showing the structure after the pile 2B is lowered to a set depth and the chain cutter driving device 5 and the chain cutter 3 are removed;

Figure 19 is a schematic view showing the construction of two piles 2B according to the set requirements;

Figure 20 is a schematic view showing the structure of the I-type tooling 2-1 after being taken out from the pile 2B;

Figure 21 is a structural view showing the attachment of the chain cutter 3 and the chain cutter driving device 5 to the wall 1-1, and embedding the convex portion of the wall 1-1 into the recessed groove of the pile 2B;

Figure 22 is a schematic view of the bottom of the wall 1-1 with the chain cutter 3 excavating the earth and soil, the side of the chain knife 3 running from the bottom up, the excavated geotechnical belt is brought to the top, and the wall 1-1 and the bottom chain knife 3 are lowered together. ;

Figure 23 is a schematic view showing the structure of the concrete in the cavity of the groove of the wall 1-1 and the pile 2B, and the concrete is poured; and the structure of the underground continuous wall composed of the wall 1-1 and the pile 2B;

Figure 24 is a view of the A-A of Figure 23, and is a structural schematic view of excavating the rock in the underground continuous wall composed of the wall 1-1 and the pile 2B for the construction of the basement;

Figure 25 is a schematic view showing the structure of the underground structure composed of the wall 1-1 and the pile 2A;

Figure 26 is a view taken along line A-A of Figure 25;

Figure 27 is a schematic view showing the structure of the underground structure composed of the T-shaped wall 1-2.

1 in the figure is the wall of the assembled underground building, including a wall 1-1, a T-shaped wall 1-2 and a cross wall 1-3; 1-1 is a wall; 1-2 is a T-wall; 1-3 It is a cross wall; 2 is a pile of prefabricated underground building. There are three structural forms: two-wall interface pile 2A, three-wall interface pile 2B and four-wall interface pile 2C; 2A is a two-wall interface pile; 2B is a three-wall interface Pile; 2C is the pile of four-wall interface; 2-1 is the type I tooling with the chain knife 3 running track 4 when the pile 2 is constructed, the pile 2 needs to be extracted after the construction is completed; 2-2 is the pile II construction II Type tooling, pile 2 needs to be taken out after construction; 3 is a chain cutter for excavating rock and soil, consisting of chain 3-1 and cutter 3-2 installed on chain 3-1; 3-1 is chain constituting chain cutter 3. 3-2 is a cutter constituting the chain cutter 3; 4 is a rail on which the bottom and side of the wall 1 or the pile 2 are provided with the chain cutter 3; 5 is a chain cutter driving device, which is driven by the driving power device 5-1 and spoil The device 5-2 and the frame 5-3 are composed; 5-1 is the driving power device; 5-2 is the spoil handling device; 5-3 is the frame; 6 is the mud pipeline device; 6-1 is the wall 1 or Mud nozzle on the bottom of pile 2; 6-2 is the mud line inside wall 1 or pile 2; 7 is the wall 1 or the side cover of the pile 2 on the outer side of the rail 4 with a beveled edge; t is the thickness of the joint between the end of the boss and the wall 1.

detailed description

The prefabricated underground building comprises a wall 1 and a pile 2, and the adjacent wall 1 is integrally connected by the pile 2. The structure of the connection between the wall 1 and the pile 2 adopts a concave-convex embedded structure, and the connection of the wall 1 is convex. The joint of the pile 2 is a concave portion, each concave portion is a groove having an opening in the middle of the pile, the convex portion of the wall 1 is embedded in the concave portion of the pile 2, and the end portion of the convex portion of the wall 1 is at the interface with the wall 1 The thickness is greater than or equal to the thickness of the wall 1, and the width of the groove portion of the pile 2 is greater than or equal to the thickness of the joint between the tail end of the wall 1 and the wall 1, and is smaller than the maximum thickness of the convex portion at the interface of the wall 1; the wall 1 includes a word Wall 1-1, T-wall 1-2 and cross wall 1-3; Pile 2 is divided into two wall interface, three-wall interface and four-wall interface; during construction, first construct the pile 2 to the set depth, then re-construction The wall 1; the bottom and the side of the wall 1 are provided with a track 4 for the operation of the chain cutter 3, and the track 4 is provided with a chain cutter 3 at the time of construction, the width of the chain cutter 3 is smaller than the width of the groove portion of the pile 2, and the chain cutter 3 is made of the chain 3 -1 and the cutter 3-2 installed on the chain 3-1, the chain cutter 3 only excavates the rock at the bottom of the wall 1 when working, and the excavated geotechnical strip at the bottom of the wall 1 is driven by the chain knife 3 running downwards and upwards. The top wall and a bottom chain cutter 3 1 run down.

The bottom and the side of the pile 2 are provided with a track 4 on which the chain cutter 3 is operated. During the construction, the track 4 is provided with a chain cutter 3, and the chain cutter 3 is composed of a chain 3-1 and a cutter 3-2 mounted on the chain 3-1. In the composition, the chain cutter 3 only excavates the rock and soil at the bottom of the pile 2, and the excavated geotechnical soil at the bottom of the pile 2 is brought upward by the chain cutter 3 running downward and upward, and the pile 2 and the bottom chain cutter 3 are simultaneously operated downward.

The T-wall 1-2 and the cross wall 1-3 are both composed of a wall 1-1.

The two wall interface is applied to the connection with two walls 1 at the interface.

The three-wall interface is applied to the connection with three walls 1 at the interface.

The four-wall interface is applied to the connection with four walls 1 at the interface.

The underground building is an underground continuous wall.

The underground building is a revetment.

The specific construction method described has the following steps:

1) Prefabricated wall 1 and pile 2;

2) transport wall 1 and pile 2 to the installation;

3) Mounting the chain cutter 3 and the chain cutter driving device on the pile 2;

4) The bottom chain knife 3 of the pile 2 excavates the rock and soil, and the side of the chain knife 3 running from the bottom up brings the excavated rock soil to the top;

5) the pile 2 and the chain cutter 3 at the bottom are lowered together;

6) The pile 2 is lowered to the set depth, and the chain cutter driving device and the chain cutter 3 are removed;

7) Install the chain cutter 3 and the chain cutter driving device on the wall 1;

8) embedding the convex portion of the wall 1 into the recessed groove of the pile 2;

9) The bottom chain knife 3 of the wall 1 excavates the rock and soil, and the side of the chain knife 3 running from the bottom up brings the excavated rock soil to the top;

10) Wall 1 and the chain cutter 3 at the bottom are lowered together;

11) The wall 1 is lowered to the set depth, and the chain cutter driving device and the chain cutter 3 are removed;

12) removing the rock and soil in the groove cavity of the interface part of the wall 1 and the pile 2, and pouring the concrete;

The construction of the above 2) to 12) is repeated until the construction of all the walls 1 and 2 is completed.

After the underground building completes the construction of the wall 1 and the pile 2, the rock and soil in the surrounding wall are excavated to carry out the construction of the basement.

The invention is further described below in conjunction with the drawings:

As shown in FIG. 1 to FIG. 5, the assembled underground building includes a wall 1 and a pile 2, and adjacent walls 1 are integrally connected by a pile 2. The structure of the connection between the wall 1 and the pile 2 is embedded in a concave-convex type. The structure, the joint of the wall 1 is a convex part, the joint of the pile 2 is a concave part, each concave part is a groove with an opening in the middle of the cavity, the convex part of the wall 1 is embedded in the concave part of the pile 2, the wall 1 is convex The thickness of the joint between the tail end and the wall 1 is greater than or equal to the thickness of the wall 1. The width of the groove portion of the pile 2 is greater than or equal to the thickness of the joint between the end of the convex portion of the wall 1 and the wall 1, and is smaller than the convex portion at the interface of the wall 1. The maximum thickness of the construction; first, after the construction of the pile 2 to the set depth, the construction wall 1; the bottom and the side of the wall 1 are provided with the track 4 running the chain knife 3, and the track 4 is equipped with a chain knife 3 and a chain knife during construction. The width of 3 is smaller than the width of the groove of the pile 2, and the chain cutter 3 is composed of a chain 3-1 and a cutter 3-2 mounted on the chain 3-1. When the chain cutter 3 is working, only the rock at the bottom of the wall 1 is excavated. The excavated geotechnical soil at the bottom of the wall 1 is brought up to the top by the chain cutter 3 running downwards, and the wall 1 and the bottom chain cutter 3 are simultaneously operated downward; the mud pipeline device 6 is on the bottom of the wall 1 or the pile 2 6-1 and mud nozzles pile wall 1 or inside the line 6-2 2 composition.

As shown in FIG. 1, FIG. 6, and FIG. 7, the wall 1 includes three structures: a wall 1-1, a typographic wall 1-2, and a cross wall 1-3. Both the T-shaped wall 1-2 and the cross wall 1-3 are It consists of a wall 1-1, and the bottom and side of the wall 1 are provided with a track 4 on which the chain cutter 3 operates.

As shown in Fig. 8 to Fig. 15, the bottom and the side of the pile 2 are provided with a rail 4 for the operation of the chain cutter 3. When the rail 4 is installed, a chain cutter 3 is mounted, and the chain cutter 3 is attached by the chain 3-1 and mounted on the chain 3-1. The upper cutter 3-2 is composed. When the chain cutter 3 works, only the rock soil at the bottom of the pile 2 is excavated, and the excavated rock soil at the bottom of the pile 2 is brought to the top by the chain cutter 3 running downward and upward, and the pile 2 and the bottom chain cutter 3 At the same time running down; there are three structural forms: two-wall interface pile 2A, three-wall interface pile 2B and four-wall interface pile 2C.

As shown in FIG. 16 to FIG. 24, the concrete construction method in which the wall 1-1 and the pile 2B are integrally connected to form a fabricated underground building has the following steps:

1) Prefabricated wall 1-1 and pile 2B;

2) transport wall 1-1 and pile 2B to the installation;

3) attaching the chain cutter 3 and the chain cutter driving device to the pile 2B;

4) Pile 2B at the bottom of the pile 2B excavates the rock and soil, and the side of the chain knife 3 running from the bottom up to bring the excavated rock soil to the top;

5) the pile 2B and the chain cutter 3 at the bottom are lowered together;

6) The pile 2B is lowered to a set depth, and the chain cutter driving device 5 and the chain cutter 3 are removed;

7) mounting the chain cutter 3 and the chain cutter driving device 5 on the wall 1-1;

8) embedding the convex portion of the wall 1-1 into the recessed groove of the pile 2B;

9) The bottom chain knife 3 of the wall 1-1 excavates the rock and soil, and the side of the chain knife 3 running from the bottom up brings the excavated rock soil to the top;

10) Wall 1-1 and the chain knife 3 at the bottom are lowered together;

11) The wall 1-1 is lowered to the set depth, and the chain cutter driving device 5 and the chain knife 3 are removed;

12) Clear the rock in the cavity of the groove of the wall 1-1 and the pile 2B interface, and inject the concrete;

Repeat the above construction of 2) to 12) until the completion of the construction of all the walls 1-1 and 2B;

The wall-type 1-1 and the pile 2B are integrally connected to form a prefabricated underground building which is an underground continuous wall. First, the earth and earth are excavated in the underground continuous wall, and then other construction of the basement is carried out.

As shown in Figs. 25 and 26, the assembled underground structure is integrally formed by the wall 1-2 and the pile 2A.

As shown in Fig. 27, the assembled underground structure formed by a plurality of walls 1-2 is a revetment.

Claims (10)

A prefabricated underground building characterized in that the assembled underground building comprises a wall (1) and a pile (2), and the adjacent walls (1) are integrally connected by a pile (2), the wall (1) and The structure of the joint of the pile (2) adopts a concave-convex embedded structure, the joint of the wall (1) is a convex part, and the joint of the pile (2) is a concave part, and each concave part is a concave with an opening in the middle of the cavity. The groove of the groove and the wall (1) is embedded in the recess of the pile (2), and the thickness of the joint between the end of the wall (1) and the wall (1) is greater than or equal to the thickness of the wall (1), and the pile (2) is concave. The width of the notch portion is greater than or equal to the thickness of the joint between the end of the wall (1) and the wall (1), which is smaller than the maximum thickness of the protrusion at the interface of the wall (1); the wall (1) includes a wall (1- 1), T-wall (1-2) and cross wall (1-3); pile (2) is divided into two walls, three-wall interface and four-wall interface; during construction, first construction pile (2) to set After the depth is fixed, the construction wall (1); the bottom and side of the wall (1) are provided with a chain knife (3) running track (4), and the rail (4) is equipped with a chain knife (3) and a chain knife ( 3) The width is smaller than the width of the groove of the pile (2), and the chain cutter (3) is composed of a chain (3-1) and a cutter (3-2) mounted on the chain (3-1). When the chain cutter (3) works, it only excavates the rock at the bottom of the wall (1). The chain cutter (3) running from the bottom up brings the excavated rock at the bottom of the wall (1) to the top, the wall (1) and the bottom chain. The knife (3) runs down at the same time. A prefabricated underground building according to claim 1, characterized in that the bottom and sides of the pile (2) are provided with a track (4) running by a chain cutter (3), and the rail (4) is mounted during construction. The chain cutter (3), the chain cutter (3) consists of a chain (3-1) and a cutter (3-2) mounted on the chain (3-1), and the chain cutter (3) only excavates the pile when working (2) At the bottom of the rock, the excavated rock at the bottom of the pile (2) is brought up to the top by the chain knife (3) running up and down, and the pile (2) and the bottom chain knife (3) run downward simultaneously. A fabricated underground building according to claim 2, wherein said T-shaped wall (1-2) and cross wall (1-3) are each composed of a wall (1-1). A fabricated underground building according to claim 1, wherein said two wall interface is applied to a connection having two walls (1) at the interface. A fabricated underground building according to claim 1, wherein said three-wall interface is applied to a connection having three walls (1) at the interface. A fabricated underground building according to claim 1, wherein said four-wall interface is a connection applied to four walls (1) at the interface. A fabricated underground building according to claim 1 wherein said underground structure is an underground continuous wall. A fabricated underground building according to claim 1 wherein said underground structure is a bank. A fabricated underground building according to claim 1, wherein said specific construction method has the following steps: 1) Prefabricated walls (1) and piles (2); 2) transport the wall (1) and the pile (2) to the installation; 3) Install a chain cutter (3) and a chain cutter drive device on the pile (2); 4) Pile (2) bottom chain knife (3) excavate the rock and soil, and the side of the chain knife (3) running from the bottom up to bring the excavated rock to the top; 5) the pile (2) and the chain knife (3) at the bottom are lowered together; 6) The pile (2) is lowered to the set depth, and the chain cutter driving device and the chain cutter (3) are removed; 7) Install a chain knife (3) and a chain cutter drive device on the wall (1); 8) embedding the convex portion of the wall (1) into the recessed groove of the pile (2); 9) The wall (1) bottom chain knife (3) excavates the rock and soil, and the side of the chain knife (3) running from the bottom up to bring the excavated rock to the top; 10) The wall (1) and the chain knife (3) at the bottom are lowered together; 11) The wall (1) is lowered to the set depth, and the chain cutter drive and the chain cutter (3) are removed; 12) Clear the rock in the cavity of the groove of the wall (1) and the pile (2) and inject the concrete; Repeat the construction of 2) to 12) above until the construction of all walls (1) and piles (2) is completed. A prefabricated underground building according to claim 9, characterized in that after the underground building completes the construction of the wall (1) and the pile (2), the rock in the surrounding wall is excavated to carry out the construction of the basement.

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