WO2018177308A1

WO2018177308A1 - Fabricated underground building interface structure and construction method thereof

Info

Publication number: WO2018177308A1
Application number: PCT/CN2018/080792
Authority: WO
Inventors: 王燏斌
Original assignee: 王燏斌
Priority date: 2017-03-29
Filing date: 2018-03-28
Publication date: 2018-10-04
Also published as: CN107059937A

Abstract

A fabricated underground building interface (1) structure, using a convex-concave embedded structure. The interface (1) is composed of a protrusion (1-1) and a recess (1-2); the thickness of the thickest part of the protrusion (1-1) is greater than the thickness t of the joint between the tail of the protrusion (1-1) and the wall (2); the width of the opening of the recess (1-2) is smaller than the thickness of the thickest part of the protrusion (1-1) but greater than the thickness t of the joint between the tail of the protrusion (1-1) and the wall (2); the protrusion (1-1) is embedded into the cavity of the recess (1-2); the bottom and side surfaces of the walls (2) are provided with tracks (5) where chain cutters (4) can operate therein; the chain cutter (4) is mounted on the track (5) during construction; during construction, the chain cutter (4) merely excavates rock at the bottom of the wall (2); the chain cutter (4) running from bottom to top brings the excavated rock upward from the bottom of the wall (2); and the wall (2) and the bottom chain cutter (4) move downwards simultaneously. Also disclosed is a construction method of the fabricated underground building interface (1) structure.

Description

Assembled underground building interface structure and construction method thereof

Technical field

The invention relates to a fabricated underground building interface structure 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 prefabricated underground building interface structure and a construction method thereof, the purpose of which is to overcome the defects of the prior art, and the main advantage thereof is that the interface of the assembled underground building is formed by the wall and the pile. The structure, the interface is stable and reliable, sealed and waterproof; the wall and the pile itself have chain cutters for excavating the bottom of the rock, the factory prefabricated walls and piles, the site is divided or the whole is lowered, the construction is simple, the construction period is short, and the cost is low.

The technical solution of the invention: the assembled underground building interface 1 comprises the interface of the wall 2 and the pile 3 and the interface of the wall 2 and the wall 2, the interface 1 adopts a concave-convex embedded structure, and the interface 1 is formed by the boss 1-1 And the groove 1-2, the thickness of the maximum thickness of the boss 1-1 is greater than the thickness t of the junction of the end of the boss 1-1 and the wall 2, and the width of the opening of the groove 1-2 is smaller than the boss 1- 1 The thickness at the maximum thickness is greater than the thickness t at the junction of the end of the boss 1-1 and the wall 2, the convex portion 1-1 is embedded in the groove of the concave portion 1-2; the wall 2 is divided into the wall with the boss 1-1 2A and the structure of the wall 2B with the groove 1-2, the pile 3 has two structures of the pile 3A with the boss 1-1 and the pile 3B with the groove 1-2, and the interface has the wall 2A and the pile 3B, wall 2B and pile 3A, wall 2A and wall 2B three interface forms; the bottom and side of the wall 2 are provided with a track 5 running the chain knife 4, the track 5 is equipped with a chain knife 4, the chain knife 4 is chained 4 -1 is composed of a cutter 4-2 mounted on the chain 4-1. When the chain cutter 4 is working, only the rock at the bottom of the wall 2 is excavated, and the excavated rock at the bottom of the wall 2 is brought up by the chain cutter 4 running from the bottom up. The square, wall 2 and bottom chain cutters 4 are simultaneously run downward.

The invention has the advantages that the interface is a concave-convex embedded structure, the interface is stable and reliable, and the seal is waterproof; the wall and the pile itself have a chain cutter for excavating the bottom rock, and the factory prefabrication, on-site block or overall drop construction method, The construction is simple, the construction period is short, and the cost is low.

DRAWINGS

1 is a schematic view showing the structure of a boss 1-1 embedded in another wall 2A in the groove 1-2 of the two wall piles 3B, and is also a structural schematic view of the wall 2A with two bosses 1-1. The interface 1 composed of the boss 1-1 and the groove 1-2 is a schematic structural view of the concave-convex type embedded;

2 is a view in the direction of arrow A of FIG. 1, and is also a structural schematic view in which the chain cutter 4 excavates the rock, the wall 2A and the chain cutter 4 are lowered together, and is also driven by the driving power device 6-1, the spoil handling device 6-2, and the frame 6. - Schematic diagram of a chain cutter driving device 6 composed of -3;

Figure 3 is a BB view of Figure 2 (with the chain cutter 4 removed), and is also a schematic view of the structure of the rail 5 of the bottom chain cutter 4 of the wall 2A, and also the mud nozzle 7-1 and the mud pipe of the mud pipeline device 7 on the wall 2A. Schematic diagram of the road 7-2;

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

FIG. 5 is a schematic structural view of another space-curable chain cutter 4, and is also a schematic structural view of the chain 4-1 and the cutter 4-2;

6 is a schematic structural view of the wall 2A1, and is also a structural diagram in which the thickness at the maximum thickness of the convex portion 1-1 is greater than the thickness t of the joint between the end of the boss 1-1 and the wall 2A1, and is also the end of the boss 1-1 and the wall. Schematic diagram of the thickness t of the 2A1 joint;

7 is a schematic structural view of the interface 1 formed by the recess 1-2 of the wall 2A1 embedded in the wall 2B, and the width of the opening of the recess 1-2 is greater than the thickness of the wall 2A1, and the bottom chain cutter 4 of the wall 2A1 a schematic view of a width smaller than the width of the opening of the groove 1-2;

8 is a schematic structural view of the wall 2A2, which is also a structural schematic view in which the thickness of the maximum thickness of the convex portion 1-1 of the wall 2A2 is equal to the thickness of the wall 2A2, and is also a structure of the thickness t of the joint between the end of the boss 1-1 and the wall 2A2. schematic diagram;

9 is a schematic structural view of the interface 1 formed by the concave portion 1-1 of the wall 2A2 embedded in the groove 1-2 of the pile 3B, and is also a structural schematic view of the width of the opening of the groove 1-2 being smaller than the thickness of the wall 2A2, and is also a convex portion. The chain cutter 4 of 1-1 is composed of three sets of chain cutters in the width direction, and the width of the middle set of chain cutters is smaller than or equal to the width of the opening of the recess 1-2 and extends into the cavity of the recess 1-2, so that the boss 1 -1 is a schematic structural view embedded in the recess 1-2;

10 is a schematic structural view of the wall 2A3, the tail portion of the convex portion 1-1 is located outside the wall 2A3, and the maximum thickness of the other side of the boss 1-1 is located inside the wall 2A3, which is also a boss 1- 1 is a schematic structural view of the thickness t at the junction of the tail end and the wall 2A2;

Figure 11 is a schematic view showing the structure of the interface 1 formed by the concave portion 1-1 of the wall 2A3 embedded in the groove 3B of the pile 3B. The chain cutter 4 of the convex portion 1-1 is composed of two sets of chain cutters in the width direction, and a set of chains The structure of the blade is less than or equal to the width of the opening of the groove 1-2 and extends into the cavity of the groove 1-2, so that the boss 1-1 is embedded in the groove 1-2;

Figure 12 is a schematic view showing the structure of the wall 2B with the groove 1-2, and also the structure of the side cover 8 having the bottom edge of the outer side of the track 5;

Figure 13 is a schematic structural view showing the construction state of the wall 2B after the installation of the I-type tooling 9-1 and the chain cutter 4;

Figure 14 is a schematic structural view of a pile 3A with a boss 1-1;

Figure 15 is a schematic structural view showing the construction state of the pile 3A after the installation of the Type II tooling 9-2 and the chain cutter 4;

Figure 16 is a schematic structural view of a pile 3B with a groove 1-2;

Figure 17 is a schematic view showing the construction state of the pile 3B after the installation of the Type II tooling 9-2 and the chain cutter 4;

Figure 18 is a schematic view showing the structure of the chain cutter 4 and the chain cutter driving device 6 being carried on the pile 2B by transporting the pile 3B to the installation place;

Figure 19 is a schematic view showing the structure of the chain cutter 4 driving the chain cutter 4 to excavate the bottom of the pile 3B, and the pile 3B and the chain cutter 4 are lowered into position;

Figure 20 is a schematic view showing the structure after the pile 3B is lowered to a set depth and the chain cutter driving device 6 and the chain cutter 4 are removed;

Figure 21 is a schematic view showing the construction of two piles 3B according to the set position;

Figure 22 is a schematic view showing the structure of the groove 1-2 formed after the drawing of the Type II tooling 9-2 on the inner side of the two piles 3B;

Figure 23 is a structural view showing the mounting of the chain cutter 4 and the chain cutter driving device 6 on the wall 2A, and embedding the convex portion 1-1 of the wall 2A into the recess 1-2 of the pile 2B;

Figure 24 is a structural schematic view of the wall 2A at the bottom of the wall 2A excavating the rock, the side of the chain knife 4 running from the bottom up, the excavated rock to the upper, the wall 2A and the bottom chain knife 4 are lowered into position;

Fig. 25 is a structural schematic view showing the removal of the geotechnical soil of the wall 2A and the pile 3B interface 1 after the wall 2A is lowered to the set depth and the chain cutter driving device 6 and the chain cutter 4 are removed, and the concrete is poured.

1 in the figure is the interface of the fabricated underground building, which is composed of the boss 1-1 and the groove 1-2; 1-1 is the boss constituting the interface 1; 1-2 is the groove constituting the interface 1; The wall of the assembled underground building has two structures: wall 2A and wall 2B; 2A is a wall with boss 1-1, which has two structures of 2A1, 2A2 and 2A3; 2A1 is the thickness of the tail of the convex part 1-1 is larger than The thickness in the middle, the width at the opening of the groove 1-2 is greater than or equal to the wall thickness in the middle of the wall; 2A2 is the thickness of the maximum thickness of the convex portion 1-1 is equal to or less than the intermediate thickness, and the width at the opening of the groove 1-2 a wall smaller than the intermediate thickness; 2A3 is a wall on the side of the convex portion 1-1 on the outer side of the wall, and the other side of the boss 1-1 is located on the inner side of the wall; 2B is a groove having a groove 1-2 Wall; 3 is a pile of fabricated underground building, with two structures: pile 3A and wall 3B; 3A is a pile with boss 1-1; 3B is a pile with groove 1-2; 4 is excavated rock and soil The chain cutter is composed of a chain 4-1 and a cutter 4-2 mounted on the chain 4-1; 4-1 is a chain constituting the chain cutter 4; 4-2 is a cutter constituting the chain cutter 4; 5 is a wall 2 And the bottom and side of the pile 3 run the track of the chain cutter 4; 6 is the chain cutter drive The driving power unit 6-1, the spoil processing unit 6-2 and the frame 6-3; the 6-1 is the driving power unit; the 6-2 is the spoil processing unit; 6-3 is the rack; Is a mud pipeline installation; 7-1 is a mud nozzle on the bottom of wall 2 or pile 3; 7-2 is a mud pipeline inside wall 2 or pile 3; 8 is a bottom blade on the outer side of rail 2 or pile 3 on rail 5 Angle side cover; 9 is tooling; 9-1 is type I tooling; 9-2 is type II tooling; t is the thickness of the joint between the end of the boss 1-1 and the wall 2.

detailed description

The assembled underground building interface 1 includes two types of interfaces of the wall 2 and the pile 3 and the interface of the wall 2 and the wall 2. The interface 1 adopts a concave-convex embedded structure, and the interface 1 is composed of a boss 1-1 and a groove 1-2. The thickness at the maximum thickness of the boss 1-1 is greater than the thickness at the junction of the end of the boss 1-1 and the wall 2, and the width at the opening of the groove 1-2 is less than the thickness at the maximum thickness of the boss 1-1 but greater than The thickness of the joint between the end of the boss 1-1 and the wall 2, the convex portion 1-1 is embedded in the groove of the concave portion 1-2; the wall 2 is divided into the wall 2A with the boss 1-1 and the groove 1-2 Wall 2B two structures, the pile 3 is divided into a pile 3A with a boss 1-1 and a pile with a groove 1-2 (3B two structures, the interface has a wall 2A and a pile 3B, a wall 2B and a pile 3A, The wall 2A and the wall 2B are in the form of three interfaces; the bottom and the side of the wall 2 are provided with a track 5 for running the chain cutter 4, and the track 5 is provided with a chain knife 4, and the chain knife 4 is connected by the chain 4-1 and the chain 4 The cutter 4-2 is composed of 1 and the chain cutter 4 only excavates the rock at the bottom of the wall 2 when working, and the chain cutter 4 running from the bottom up is brought to the top of the excavated rock at the bottom of the wall 2, the wall 2 and the bottom chain knife 4 Run down at the same time.

The bottom and the side of the pile 3 are provided with a rail 5 for running the chain cutter 4, and the rail 5 is provided with a chain cutter 4, and the chain cutter 4 is composed of a chain 4-1 and a cutter 4-2 mounted on the chain 4-1. In the composition, the chain cutter 4 only excavates the rock at the bottom of the pile 3, and the excavated geotechnical soil at the bottom of the pile 3 is brought upward by the chain cutter 4 running downward and upward, and the pile 3 and the bottom chain cutter 4 are simultaneously operated downward.

The construction method is to first construct the pile 3A or the wall 2A with the boss, and then construct the wall 2B or the pile 3B with the groove.

The construction method is to first construct the pile 3B or the wall 2B with the groove, and then construct the wall 2A or the pile 3A with the boss.

The thickness of the tail portion 1-1 of the wall 2A1 is greater than the thickness of the wall 2A1, the width of the opening of the groove 1-2 is greater than or equal to the thickness of the wall 2A1, and the width of the bottom chain cutter 4 of the wall 2A1 is smaller than the groove 1-2. The width at the opening.

The width of the chain cutter 4 of the convex portion 1-1 of the wall 2A2 is less than or equal to the width of the opening of the recess 1-2 and extends into the cavity of the recess 1-2, so that the boss 1-1 is embedded in the recess 1- 2 inside.

The thickness of the maximum thickness of the convex portion 1-1 of the wall 2A2 is equal to or smaller than the thickness of the wall 2A2, and the width at the opening of the groove 1-2 is smaller than the thickness of the wall 2A2.

The chain cutter 4 of the convex portion 1-1 of the wall 2A2 is composed of three sets of chain cutters in the width direction, and the width of the middle set of chain cutters is smaller than or equal to the width of the opening of the recess 1-2 and extends into the recess 1-2 The cavity allows the boss 1-1 to be embedded in the recess 1-2.

The tail portion on the side of the convex portion 1-1 of the wall 2A3 is located outside the wall 2A3, and the maximum thickness of the other side of the boss (1-1 is located inside the wall 2A3).

The chain cutter 4 of the convex portion 1-1 of the wall 2A3 is composed of two sets of chain cutters in the width direction, and the width of the set of chain cutters is less than or equal to the width of the opening of the recess 1-2 and extends into the recess 1-2 The cavity allows the boss 1-1 to be embedded in the recess 1-2.

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

As shown in FIG. 1 to FIG. 5, the assembled underground building interface 1 is an interface between the wall 2 and the pile 3. The interface 1 adopts a concave-convex embedded structure, and the interface 1 is composed of a boss 1-1 and a groove 1-2, and is convex. The thickness at the maximum thickness of the stage 1-1 is greater than the thickness t at the junction of the end of the boss 1-1 and the wall 2, and the width at the opening of the groove 1-2 is smaller than the thickness at the maximum thickness of the boss 1-1 but larger than the convex The thickness t of the junction between the end of the stage 1-1 and the wall 2, the convex portion 1-1 is embedded in the groove of the concave portion 1-2; the bottom and the side of the wall 2 are provided with the rail 5 for running the chain cutter 4, and the rail 5 is mounted during construction. There is a chain cutter 4, which consists of a chain 4-1 and a cutter 4-2 mounted on the chain 4-1. The driving power unit 6-1 drives the chain cutter 4, and the chain cutter 4 only digs the bottom of the wall 2A when working. In the rock and soil, the excavated geotechnical soil at the bottom of the wall 2A is brought up to the top by the chain knife 4 running downwards, and the device 6-2 separates the rock soil brought by the chain knife 4 from the bottom of the wall 2A with the chain cutter 4, the wall 2A and The bottom chain cutter 4 is simultaneously operated downward; the mud line device 7 is composed of a mud nozzle 7-1 on the bottom of the wall 2 or the pile 3 and a pipe 7-2 inside the wall 2 or the pile 3.

As shown in FIG. 6 to FIG. 13 , the interface 1 has three interface forms: a wall 2A and a pile 3B, a wall 2B and a pile 3A, a wall 2A and a wall 2B; the wall 2 has a wall 2A with a boss 1-1 and The wall 2B of the groove 1-2 has two structures; 2A is a wall with a boss 1-1, and has two structures of 2A1, 2A2 and 2A3; the thickness of the tail of the convex portion 1-1 of the wall 2A1 is larger than the thickness of the wall 2A1, The width of the opening of the groove 1-2 is greater than or equal to the thickness of the wall 2A1, and the width of the chain cutter 4 at the bottom of the wall 2A1 is smaller than the width of the opening of the groove 1-2; the width of the chain cutter 4 of the convex portion 1-1 of the wall 2A2 is smaller than Or equal to the width of the opening of the groove 1-2 and extending into the cavity of the groove 1-2, so that the boss 1-1 is embedded in the groove 1-2; the thickness of the maximum thickness of the convex portion 1-1 of the wall 2A2 is equal to Or less than the thickness of the wall 2A2, the width of the opening of the groove 1-2 is smaller than the thickness of the wall 2A2; the chain cutter 4 of the convex portion 1-1 of the wall 2A2 is composed of three sets of chain cutters in the width direction, and the width of the middle set of chain cutters is smaller than Or equal to the width of the opening of the groove 1-2 and extending into the cavity of the groove 1-2, so that the boss 1-1 is embedded in the groove 1-2; the tail of the side of the convex portion 1-1 of the wall 2A3 is located at the wall 2A3 On the outer side, the maximum thickness of the other side of the boss 1-1 is located on the inner side of the wall 2A3; the wall 2A3 is convex 1-1 The knife 4 is composed of two sets of chain cutters 4 in the width direction, and the width of one set of chain cutters 4 is smaller than or equal to the width of the opening of the recess 1-2 and extends into the cavity of the recess 1-2 to embed the boss 1-1 In the groove 1-2; during construction, the pile 3B or the wall 2B with the groove may be constructed first, and the wall 2A or the pile 3A with the boss may be constructed later.

As shown in Figs. 14 to 17, the pile 3 has two structures of a pile 3A having a boss 1-1 and a pile 3B having a groove 1-2.

As shown in Fig. 18 to Fig. 25, the pile 3B with the groove is first constructed, and the wall 2A with the boss is constructed later. The specific construction method has the following steps:

1) Precast pile 3B and wall 2A;

2) transporting the pile 3B and the wall 2A to the installation site;

3) mounting the chain cutter 4 and the chain cutter driving device 6 on the pile 3B;

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

5) the pile 3B and the chain cutter 4 at the bottom are lowered together;

6) The pile 3B is lowered to a set depth, and the chain cutter driving device 6 and the chain knife 4 are removed;

7) mounting the chain cutter 4 and the chain cutter driving device 6 on the wall 2A;

8) The convex portion 1-1 of the wall 2A is embedded in the groove 1-2 of the pile 3B;

9) The bottom chain knife 4 of the wall 2A excavates the rock and soil, and the side of the chain is operated by the chain knife 4 running from the bottom to the top;

10) the wall 2A and the chain cutter 4 at the bottom are lowered together;

11) The wall 2A is lowered to a set depth, and the chain cutter driving device 6 and the chain knife 4 are removed;

12) Clear the rock in the cavity of the wall 2A and the pile 3B interface, and pour the concrete;

The construction of the above 2) to 12) is repeated until the construction of all the

walls

2A and 3B is completed.

Claims

A fabricated underground building interface structure, characterized in that the assembled underground building interface (1) comprises an interface between the wall (2) and the pile (3) and an interface between the wall (2) and the wall (2), the interface ( 1) The concave-convex embedded structure is adopted, and the interface (1) is composed of a boss (1-1) and a groove (1-2), and the thickness of the maximum thickness of the boss (1-1) is larger than that of the boss (1- 1) The thickness of the joint between the tail end and the wall (2), the width at the opening of the groove (1-2) is smaller than the thickness at the maximum thickness of the boss (1-1) but larger than the end of the boss (1-1) The thickness of the joint of the wall (2), the convex portion (1-1) is embedded in the groove of the concave portion (1-2); the wall (2) is divided into the wall (2A) with the boss (1-1) and has a concave Two structures of the wall (2B) of the groove (1-2), the pile (3) is divided into a pile (3A) with a boss (1-1) and a pile (3B) with a groove (1-2) The structure has three types of interfaces: wall (2A) and pile (3B), wall (2B) and pile (3A), wall (2A) and wall (2B); the bottom and side of the wall (2) are operated. The rail (5) of the chain cutter (4) is equipped with a chain cutter (4) on the rail (5) during construction, and the chain cutter (4) is composed of a chain (4-1) and a cutter mounted on the chain (4-1) ( 4-2) Composition, the chain knife (4) works only when the rock at the bottom of the wall (2) is excavated, and the chain knife running from the bottom up ( 4) Bring the excavated rock at the bottom of the wall (2) to the top, and the wall (2) and the bottom chain knife (4) run down at the same time.
A fabricated underground building interface structure according to claim 1, characterized in that the bottom and sides of the pile (3) are provided with a track (5) for running the chain cutter (4), and the track (5) during construction. The chain cutter (4) is mounted on the chain cutter (4) consisting of a chain (4-1) and a cutter (4-2) mounted on the chain (4-1). The chain cutter (4) only excavates the pile when working ( 3) At the bottom of the rock, the excavated rock at the bottom of the pile (3) is brought up to the top by the chain knife (4) running up and down, and the pile (3) and the bottom chain knife (4) run downward at the same time.
The assembled underground building interface structure according to claim 1, wherein the construction method is to first construct a pile (3A) or a wall (2A) with a boss, and the rear construction has a groove. Wall (2B) or pile (3B).
The assembled underground building interface structure according to claim 1, wherein the construction method is to first construct a groove (3B) or a wall (2B) with a groove, and the construction has a boss. Wall (2A) or pile (3A).
A fabricated underground building interface structure according to claim 1, wherein the thickness of the tail portion of the wall (2A1) convex portion (1-1) is greater than the thickness of the wall (2A1), and the groove (1-2) The width at the opening is greater than or equal to the thickness of the wall (2A1), and the width of the bottom chain knife (4) of the wall (2A1) is smaller than the width at the opening of the groove (1-2).
A fabricated underground building interface structure according to claims 4 and 5, characterized in that the width of the chain cutter (4) of the convex portion (1-1) of the wall (2A2) is less than or equal to the groove (1) - 2) The width of the opening and extending into the cavity of the groove (1-2), so that the boss (1-1) is embedded in the groove (1-2).
A fabricated underground building interface structure according to claim 1, wherein the thickness of the maximum thickness of the convex portion (1-1) of the wall (2A2) is equal to or smaller than the thickness of the wall (2A2), concave The width at the opening of the groove (1-2) is smaller than the thickness of the wall (2A2).
A fabricated underground building interface structure according to claim 4, wherein the chain cutter (4) of the wall (2A2) convex portion (1-1) is composed of three sets of chain cutters in the width direction. The width of the middle set of chain cutters is less than or equal to the width of the opening of the groove (1-2) and extends into the cavity of the groove (1-2), so that the boss (1-1) is embedded in the groove (1-2) Inside.
A fabricated underground building interface structure according to claim 1, wherein the tail of one side of the convex portion (1-1) of the wall (2A3) is located outside the wall (2A3), and the boss (1- 1) The maximum thickness of the other side is located inside the wall (2A3).
A fabricated underground building interface structure according to claims 4 and 9, characterized in that the chain knife (4) of the convex portion (1-1) of the wall (2A3) is composed of two sets of chain cutters in the width direction. a set of chain cutters having a width less than or equal to the width of the opening of the recess (1-2) and extending into the recess (1-2) cavity, so that the boss (1-1) is embedded in the recess (1-2) Inside.