CN-116696388-B - Door opening and entry and exit construction method of heading machine

CN116696388BCN 116696388 BCN116696388 BCN 116696388BCN-116696388-B

Abstract

The invention belongs to the technical field of building construction, and discloses a door opening and a tunneling machine entrance and exit construction method. The outer sleeve is fixedly arranged on the reinforcement cage of the underground diaphragm wall, the axial direction of the outer sleeve and the extending direction of the underground diaphragm wall form an included angle, two ends of the outer sleeve are exposed out of the reinforcement cage, and a tunneling channel penetrating through the outer sleeve along the axial direction of the outer sleeve is arranged in the outer sleeve. The inner sleeve is arranged in the outer sleeve and used for blocking the tunneling passage, and the inner sleeve is detachably connected with the outer sleeve. The concrete of the underground diaphragm wall coats the outer sleeve and the inner sleeve. The door opening provided by the invention is pre-arranged on the underground continuous wall, the inner sleeve is disassembled before the entry and exit of the tunneling machine, and the tunneling machine realizes the entry and exit through the tunneling channel in the outer sleeve. Compared with the prior art, the door opening disclosed by the invention has the advantages that the door opening is quickly broken when entering and exiting the opening, the construction efficiency is improved, and the safety risk is reduced.

Inventors

SHAO ZHILI
JIANG XIAOQIANG
HUANG YU
TANG JIANZHONG
HOU ZHENGYU
LUO XIN
JIA BAORONG
ZHOU FENG
ZHANG YU
LI JIQING
ZHENG XIANGJIE
WEI XIAOFENG

Assignees

上海市机械施工集团有限公司

Dates

Publication Date: 20260508
Application Date: 20230721

Claims (7)

1. Door opening, its characterized in that includes: The outer sleeve (1) is fixedly arranged on a reinforcement cage (101) of the underground diaphragm wall (100), an included angle is formed between the axial direction of the outer sleeve (1) and the extending direction of the underground diaphragm wall (100), two ends of the outer sleeve (1) are exposed out of the reinforcement cage (101), and a tunneling channel penetrating through the outer sleeve (1) along the axial direction of the outer sleeve (1) is arranged in the outer sleeve (1); The inner sleeve (2) is arranged in the outer sleeve (1) and used for blocking the tunneling passage, and the inner sleeve (2) is detachably connected with the outer sleeve (1); the concrete of the underground diaphragm wall (100) coats the outer sleeve (1) and the inner sleeve (2); the inner sleeve (2) and the outer sleeve (1) are coaxially arranged, and the end surfaces of the two ends of the inner sleeve (2) and the end surfaces of the two ends of the outer sleeve (1) are coplanar; The novel inner sleeve comprises an outer sleeve (1) and an inner sleeve (2), and is characterized by further comprising a plurality of first connecting components, wherein the first connecting components are arranged at intervals along the circumferential direction of the inner sleeve (2), the first connecting components comprise a plurality of first connecting pieces (41) which are arranged at intervals along the axial direction of the inner sleeve (2), and the first connecting pieces (41) are connected with the outer sleeve (1) and the inner sleeve (2); the outer sleeve (1) comprises a first cylinder body (11), a second cylinder body (12) and a first end plate (13), wherein the first cylinder body (11) is arranged in the second cylinder body (12) and is coaxially arranged with the second cylinder body (12), the first end plate (13) is arranged at one end, far away from the underground diaphragm wall (100), of the outer sleeve (1) facing the pit surface, the first end plate (13) is connected with the first cylinder body (11) and the second cylinder body (12) so as to seal a gap between the first cylinder body (11) and the second cylinder body (12), and the first cylinder body (11), the second cylinder body (12) and the first end plate (13) are surrounded to form a first hand hole (10); The inner sleeve (2) comprises a third cylinder body (21), a fourth cylinder body (22) and a second end plate (23), the third cylinder body (21) is detachably connected with the second cylinder body (12), the fourth cylinder body (22) is arranged in the third cylinder body (21) and is coaxially arranged with the third cylinder body (21), the second end plate (23) is arranged at one end, far away from the underground diaphragm wall (100), of the inner sleeve (2) facing the pit surface, the second end plate (23) is connected with the third cylinder body (21) and the fourth cylinder body (22) so as to seal a gap between the third cylinder body (21) and the fourth cylinder body (22), and the third cylinder body (21), the fourth cylinder body (22) and the second end plate (23) are surrounded to form a second hand hole (20); The first connecting piece (41) is used for connecting the second cylinder body (12) and the third cylinder body (21), one end of the first connecting piece (41) stretches into the first hand hole (10), and the other end stretches into the second hand hole (20).
2. Door opening according to claim 1, further comprising a dismounting connecting rod arranged in the second hand hole (20), one end of the dismounting connecting rod being fixedly connected with the third cylinder (21) and the other end being fixedly connected with the fourth cylinder (22), the dismounting connecting rod being arranged at a distance from the second end plate (23).
3. Door opening according to claim 1, further comprising a first blocking plate (3) arranged at an end of the inner sleeve (2) close to the pit facing surface of the underground diaphragm wall (100), the first blocking plate (3) connecting the first cylinder (11) and the fourth cylinder (22) for blocking the first hand hole (10) and the second hand hole (20).
4. A door opening according to claim 3, characterized in that the first closure plate (3) is welded to the first cylinder (11) and the fourth cylinder (22).
5. A door opening according to claim 3, wherein the outer sleeve (1) further comprises a first connecting plate (14), the first connecting plate (14) being arranged at one end of the first cylinder (11) close to the pit facing surface of the underground diaphragm wall (100) and being axially perpendicular to the outer sleeve (1), the first connecting plate (14) surrounding the axis of the outer sleeve (1) and extending in a direction close to the second cylinder (12); The inner sleeve (2) further comprises a second connecting plate (24), wherein the second connecting plate (24) is arranged at one end of the fourth cylinder (22) close to the pit facing surface of the underground continuous wall (100) and is perpendicular to the axial direction of the inner sleeve (2), and the second connecting plate (24) surrounds the axis of the inner sleeve (2) and extends towards the direction close to the third cylinder (21); The first connecting plate (14) and the second connecting plate (24) are detachably connected with the first plugging plate (3).
6. Door opening according to claim 5, further comprising a second connection assembly and a third connection assembly, the second connection assembly comprising a plurality of second connection members (71) arranged at intervals along the circumference of the outer sleeve (1), the second connection members (71) connecting the first connection plates (14) with the first closure plates (3), the third connection assembly comprising a plurality of third connection members (81) arranged at intervals along the circumference of the inner sleeve (2), the third connection members (81) connecting the second connection plates (24) with the first closure plates (3).
7. A method for constructing a tunnel boring machine by entering and exiting a tunnel, characterized in that the door opening according to any one of claims 1 to 6 is used for entering and exiting the tunnel boring machine, comprising the following steps: s1, fixedly arranging the door opening on a reinforcement cage (101), and placing the reinforcement cage (101) fixedly provided with the door opening into an underground diaphragm wall foundation pit; s2, pouring concrete into the underground diaphragm wall foundation pit, wherein the concrete coats the door opening; S3, excavating a working well, chiseling concrete between the working well and the door opening, removing the inner sleeve (2), chiseling residual concrete of the underground continuous wall (100) in the extending direction of the tunneling channel; s4, the heading machine enters the tunneling channel on the outer sleeve (1).

Description

Door opening and entry and exit construction method of heading machine Technical Field The invention relates to the technical field of building construction, in particular to a door opening and a tunneling machine hole entering and exiting construction method. Background A high-risk control point in tunnel engineering construction is the tunnel entering and exiting construction of a tunneling machine, a tunnel door is needed to be made on a maintenance structure (usually an underground continuous wall) when the tunneling machine enters and exits, a conventional tunnel door breaking method adopts manual and mechanical cooperation to chisel an enclosure structure, the duration is longest, the risk is greatest, a construction method for directly cutting a concrete tunnel door and glass fiber reinforcement to enter and exit is further adopted, the efficiency of grinding concrete is low, a large amount of time is consumed, and in addition, the directional blasting tunnel door cannot be used in urban areas and has large smoke dust pollution. And the longer the time for breaking the tunnel door in the construction process of entering and exiting the tunnel, the more easily the security risks such as water gushing and sand gushing are caused. Therefore, there is a need for a door opening and a method for constructing a tunnel entrance and exit of a heading machine to solve the above problems. Disclosure of Invention The invention aims to provide a door opening and a tunneling machine entrance and exit construction method, which can quickly break the door when entering and exiting the tunnel, improve the construction efficiency and reduce the safety risk. To achieve the purpose, the invention adopts the following technical scheme: A door opening, comprising: The outer sleeve is fixedly arranged on a reinforcement cage of the underground diaphragm wall, the axial direction of the outer sleeve and the extending direction of the underground diaphragm wall form an included angle, two ends of the outer sleeve are exposed out of the reinforcement cage, and a tunneling channel penetrating through the outer sleeve along the axial direction of the outer sleeve is arranged in the outer sleeve; the inner sleeve is arranged in the outer sleeve and used for blocking the tunneling passage, and the inner sleeve is detachably connected with the outer sleeve; the concrete of the underground diaphragm wall coats the outer sleeve and the inner sleeve. Preferably, the inner sleeve and the outer sleeve are coaxially arranged, and both end surfaces of the inner sleeve and both end surfaces of the outer sleeve are coplanar. Preferably, the inner sleeve is further provided with a plurality of first connecting assemblies, the first connecting assemblies are arranged at intervals along the circumferential direction of the inner sleeve, the first connecting assemblies comprise a plurality of first connecting pieces which are arranged at intervals along the axial direction of the inner sleeve, and the first connecting pieces are connected with the outer sleeve and the inner sleeve. Preferably, the outer sleeve comprises a first cylinder, a second cylinder and a first end plate, the first cylinder is arranged in the second cylinder and is coaxially arranged with the second cylinder, the first end plate is arranged at one end of the outer sleeve, which is far away from the pit facing surface of the underground continuous wall, the first end plate is connected with the first cylinder and the second cylinder so as to seal a gap between the first cylinder and the second cylinder, and a first hand hole is formed by surrounding the first cylinder, the second cylinder and the first end plate; The inner sleeve comprises a third cylinder body, a fourth cylinder body and a second end plate, the third cylinder body is detachably connected with the second cylinder body, the fourth cylinder body is arranged in the third cylinder body and is coaxially arranged with the third cylinder body, the second end plate is arranged at one end of the inner sleeve, which is far away from the pit facing surface of the underground diaphragm wall, the second end plate is connected with the third cylinder body and the fourth cylinder body so as to seal a gap between the third cylinder body and the fourth cylinder body, and a second hand hole is formed by encircling the third cylinder body, the fourth cylinder body and the second end plate; the first connecting piece is connected with the second cylinder body and the third cylinder body, one end of the first connecting piece stretches into the first hand hole, and the other end stretches into the second hand hole. Preferably, the detachable connecting rod is arranged in the second hand hole, one end of the detachable connecting rod is fixedly connected with the third cylinder, the other end of the detachable connecting rod is fixedly connected with the fourth cylinder, and the detachable connecting rod is arranged at interva