CN-224227876-U - Subway tunnel reinforcing and connecting structure for underground construction of high-rise building

Abstract

The utility model provides a subway tunnel reinforcing and connecting structure for underground construction of a high-rise building, which comprises a jet grouting pile, a radial grouting structure and a connecting device, wherein the jet grouting pile is arranged between the building and a tunnel lining, the radial grouting structure close to the jet grouting pile is connected with the jet grouting pile through the connecting device, and a concrete dispersion area is connected with the radial grouting structure through the connecting device. The utility model separates the subway tunnel construction area from the high-rise building foundation through the jet grouting piles to avoid mutual disturbance of the two areas, connects the jet grouting piles and the radial grouting structure by utilizing the connecting device to further stabilize the tunnel lining structure, well reinforces the soil layer near the high-rise building foundation by the concrete dispersion area, is integrated with the jet grouting piles and the radial grouting structure, and isolates the underground disturbance of tunnel construction on the high-rise building.

Inventors

• LIU LINTAO
• XU QIANG
• Kang Chaoqi
• JIAO WEI
• ZHANG ZHICHENG
• MENG FANRONG
• Du Miaofan
• HOU LAPING
• TANG WEIPING
• WANG YONGPING
• MA XINBIAO
• Hu Bangzhu

Assignees

• 中铁一局集团第二工程有限公司

Dates

Publication Date

20260512

Application Date

20250609

Claims (5)

1. 1. A subway tunnel reinforcing and connecting structure for underground construction of a high-rise building is characterized by comprising a jet grouting pile, a radial grouting structure and a connecting device; the jet grouting pile is arranged between a building and a tunnel lining, and the lower part of the jet grouting pile is inclined towards the direction close to the building; The radial grouting structure is formed by solidifying concrete slurry, extends radially outwards to surrounding rock and soil layers along the tunnel lining, and is connected with the jet grouting pile through the connecting device; And one side of the jet grouting pile, which is far away from the tunnel, is provided with a concrete dispersion area, and the concrete dispersion area is connected with the radial grouting structure through the connecting device.
2. 2. The subway tunnel reinforcing and connecting structure for underground construction of a high-rise building according to claim 1, wherein the connecting device comprises a cylinder body with an upper cover and a lower bottom, longitudinal ribs penetrating through the upper cover and the lower bottom and elastic clamping claws fixedly arranged on the outer side of the cylinder body, and a protective sleeve is sleeved on the outer sides of the cylinder body and the elastic clamping claws; The cylinder body is provided with an inlet pipe and an outlet pipe, wherein the inlet pipe faces to the grouting holes of the radial grouting structure, and the outlet pipe faces to the concrete dispersion area.
3. 3. The subway tunnel reinforcing and connecting structure for underground construction of high-rise building according to claim 2, wherein one end of the elastic claw is fixed on the outer side of the cylinder body, and the other end of the elastic claw is provided with a latch and is outwards opened for being clamped on the side wall of the jet grouting pile hole.
4. 4. The subway tunnel reinforcing connection structure for underground construction of high-rise building according to claim 2, wherein the cylinder is arranged in the protection sleeve through the elastic claw, and when the connection device moves downwards to a designated position along the jet grouting pile hole, the protection sleeve can be separated from the connection device, so that the connection device is clamped in the jet grouting pile hole.
5. 5. The subway tunnel reinforcing and connecting structure for underground construction of high-rise buildings according to claim 2, wherein rubber rings are arranged on the inner sides of the upper cover and the lower bottom, and the longitudinal ribs penetrate through the rubber rings.

Description

Subway tunnel reinforcing and connecting structure for underground construction of high-rise building Technical Field The utility model relates to the field of subway tunnel construction, in particular to a subway tunnel reinforcing and connecting structure for underground construction of a high-rise building. Background With the development of cities, subways are increasingly built in cities. The urban medium-high building stands up, the environment is complex, and subways are often inevitably close to the vicinity of the high-rise building. However, the subway construction can cause disturbance to the underground foundation of the high-rise building and soil layers nearby the foundation, and hidden danger is caused to the safety of the high-rise building. Disclosure of utility model The present utility model provides a subway tunnel reinforcing connection structure for underground construction of a high-rise building, so as to overcome the above problems. A subway tunnel reinforcing and connecting structure for underground construction of a high-rise building comprises a jet grouting pile, a radial grouting structure and a connecting device; the jet grouting pile is arranged between a building and a tunnel lining, and the lower part of the jet grouting pile is inclined towards the direction close to the building; The radial grouting structure is formed by solidifying concrete slurry, extends radially outwards to surrounding rock and soil layers along the tunnel lining, and is connected with the jet grouting pile through the connecting device; And one side of the jet grouting pile, which is far away from the tunnel, is provided with a concrete dispersion area, and the concrete dispersion area is connected with the radial grouting structure through the connecting device. Further, the connecting device comprises a cylinder body with an upper cover and a lower bottom, longitudinal ribs penetrating through the upper cover and the lower bottom and elastic clamping claws fixedly arranged on the outer side of the cylinder body, and a protective sleeve is sleeved on the outer sides of the cylinder body and the elastic clamping claws; The cylinder body is provided with an inlet pipe and an outlet pipe, wherein the inlet pipe faces to the grouting holes of the radial grouting structure, and the outlet pipe faces to the concrete dispersion area. Further, one end of the elastic claw is fixed on the outer side of the cylinder body, and the other end of the elastic claw is provided with a latch and is outwards opened and used for being clamped on the side wall of the jet grouting pile hole. Further, the cylinder body is arranged in the protective sleeve through the elastic claw, and when the connecting device moves downwards to a designated position along the jet grouting pile hole, the protective sleeve can be separated from the connecting device, so that the connecting device is clamped in the jet grouting pile hole. Further, rubber rings are arranged on the inner sides of the upper cover and the lower bottom, and the longitudinal ribs penetrate through the rubber rings. The subway tunnel reinforcing connection structure for underground construction of a high-rise building, disclosed by the utility model, is characterized in that a subway tunnel construction area and a high-rise building foundation are isolated through a jet grouting pile, mutual disturbance of the two areas is avoided, the jet grouting pile and a radial grouting structure are connected with the jet grouting pile by utilizing a connection device, a tunnel lining structure is further stabilized, a concrete dispersion area is arranged on one side, close to the high-rise building, of the jet grouting pile, a soil layer near the high-rise building foundation is well reinforced by the concrete dispersion area, and the concrete dispersion area, the jet grouting pile and the radial grouting structure are integrated, so that underground disturbance of tunnel construction to the high-rise building is isolated. Drawings In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it will be obvious that the drawings in the following description are some embodiments of the present utility model, and that other drawings can be obtained according to these drawings without inventive effort to a person skilled in the art. Fig. 1 is a schematic diagram of a subway tunnel reinforcement connection structure for underground construction of a high-rise building, which is disclosed in the embodiment of the utility model; FIG. 2 is a schematic diagram of a connection between a jet grouting pile hole and a grouting hole in an embodiment of the present utility model; FIG. 3 is a schematic view of a connecting device according to an embodiment of the present utility model; FIG. 4 is a schematic to