CN-117536638-B - Underground excavation lining device and method without damaging ground

CN117536638BCN 117536638 BCN117536638 BCN 117536638BCN-117536638-B

Abstract

The invention provides an underground excavation lining device and method without damaging the ground, which belong to the field of underground construction and are used for excavating tunnels and lining circular pipes. In conventional construction, the excavator digs the groove along the route, lining or paving a circular pipe in the groove, and finally burying and recovering the ground, so that the ground is required to be damaged, and the excavator has more defects and limitations. The device comprises a pushing part, a drawing part and an excavating part, wherein the pushing part is positioned at a starting end, the drawing part is positioned at a target end, the excavating part is positioned in the middle, a spliced circular tube unit is arranged between the excavating part and the pushing part, a spliced double-layer drill rod is arranged between the excavating part and the drawing part, and in the process of tunneling the excavating part towards the drawing part, the pushing part pushes the circular tube unit into a channel at the same time, and when the excavating is completed, lining work is correspondingly completed. The device combines the method, has wide application scene, does not damage the road surface and influence traffic, and has high construction efficiency.

Inventors

ZHANG GUANGPENG
WANG JINHUA
WANG YUHAN
LI YONGGANG
Qiao long
LI CHUNLONG
HAN ZHIYONG

Assignees

中铁十六局集团地铁工程有限公司
中铁十六局集团有限公司

Dates

Publication Date: 20260505
Application Date: 20231213

Claims (10)

1. An underground excavation lining apparatus that does not damage the ground, for excavating a tunnel between a start end (91) bored with a pilot hole (92) and a target end (93) and lining a round pipe unit (901), characterized by comprising: a pushing part (1), a drawing part (2) and an excavating part (3) which are arranged in a straight line and the central line of which coincides with the axis of the primary hole (92); The pushing part (1) is positioned at the starting end (91), the pushing part (1) comprises a pushing frame (10) and a pushing mechanism (11), an arc-shaped positioning sheet (101) is arranged on the pushing frame (10), the axis of the arc center of the arc-shaped positioning sheet (101) coincides with the axis of the primary hole (92), and the pushing mechanism (11) is arranged at the tail end of the pushing frame (10); The drawing part (2) is located at the target end (93), the drawing part (2) comprises a drawing frame (20) and a drawing mechanism (21), the drawing mechanism (21) is slidably arranged on the drawing frame (20), a rotary structure (210) and a rotary sealing structure (211) are arranged on the drawing mechanism (21), the rotary structure (210) is hollow, the axis of the rotary structure is coincident with the primary hole (92), a clamping block (2101) is arranged on the hollow inner wall of the rotary structure (210), and the rotary sealing structure (211) is arranged on the rear side of the rotary structure (210); The excavating part (3) is positioned in a primary hole (92) between the starting end (91) and the target end (93), the excavating part (3) comprises a tail disc (30) facing the pushing part (1) and a tunneling cutter disc (31) facing the drawing part (2), the tunneling cutter disc (31) is rotatably arranged on the final quotaion (30), the pushing part (1) is connected with the tail disc (30) through a spliced circular tube unit (901), the drawing part (2) is connected with the tunneling cutter disc (31) through a spliced double-layer drill rod (902), the other end of the double-layer drill rod (902) penetrates through the rotary structure (210) and is clamped by the clamping block (2101), and the tail end of the double-layer drill rod (902) is rotatably connected with the rotary sealing structure (211); The rotary sealing structure (211) comprises a water inlet (2111) and a mud outlet (2112), the double-layer drill rod (902) comprises an inner layer (9021) and an outer layer (9022), the water inlet (2111) and the mud outlet (2112) are respectively communicated with the inner layer (9021) and the outer layer (9022), and inflow water is sprayed out of a nozzle (9023) at the tunneling cutterhead (31) and then flows back together with mud.
2. An underground excavation lining apparatus without breaking the ground as set forth in claim 1, wherein said pushing portion (1) further comprises a connecting portion (12), said connecting portion (12) being provided at an end of said pushing frame (10) toward said primary hole (92), said connecting portion (12) comprising: the sliding seat (120) is connected to the pushing frame (10) in a sliding manner; a connecting disc (121) rotatably mounted on the sliding seat (120) and having an axis coincident with the axis of the primary hole (92); A ring gear (122) fixedly mounted to the connection disc (121); A power source (123) mounted on the slide base (120) and driving the connection disc (121) to rotate; The connecting disc (121) comprises a shell (1210), electric heating plates (1211), elastic bags (1212) and telescopic pieces (1213), wherein a plurality of electric heating plates (1211) are annularly distributed in the middle layer of the shell (1210), two side surfaces of each electric heating plate (1211) are in sliding fit with the shell (1210), guide pieces (12101) are arranged between the two connected electric heating plates (1211), and the telescopic pieces (1213) and the elastic bags (1212) are connected between the back side of each electric heating plate (1211) and the inner wall of the shell (1210); An annular groove (12102) is further formed in the outer portion of the shell (1210), an annular receiving electrode is embedded in the annular groove (12102), a power supply electrode is arranged on the sliding seat (120), and the power supply electrode is matched with the receiving electrode; The elastic bag (1212) is filled with a liquid.
3. An underground excavation lining apparatus which does not damage the ground as claimed in claim 2, wherein the elastic bag (1212) is made of rubber.
4. An underground excavation lining apparatus that does not damage the ground as claimed in claim 1, further comprising a discharging mechanism (4), the discharging mechanism (4) comprising: Two guide rails (41) fixed on the wall surface of the starting end (91) and facing the arc-shaped positioning sheet (101); the material racks (42) are in sliding fit with the two guide rails (41), and the material racks (42) and the guide rails (41) are combined into a V shape; a rod (43) connected to the upper parts of the two guide rails (41); and the tail end of the flexible cable (44) is fixed on the material rack (42), and then the flexible cable bypasses the rod piece (43) to be led to the bottom of the blanking mechanism (4) and is driven by a motor connected with a winding disc.
5. An underground excavation lining apparatus which does not damage the ground as claimed in claim 1, wherein the pushing mechanism (11) comprises a telescopic cylinder (112) and a force-distributing plate (113), one side of the force-distributing plate (113) is abutted with the round pipe unit (901), and the other side is driven by the telescopic cylinder (112).
6. An underground excavation lining apparatus without breaking the ground as claimed in claim 2, wherein three of said gripping blocks (2101) are circumferentially equally spaced on the hollow inner wall of said rotary structure (210), said gripping blocks (2101) being electromagnets.
7. An underground excavation lining apparatus which does not damage the ground as claimed in claim 2, wherein the electric heating sheet (1211) is formed of metal on both sides and the middle layer is a heating element.
8. An underground excavation lining apparatus which does not damage the ground as claimed in claim 2, wherein upper and lower sides of the housing (1210) which are in contact with the electric heating pad (1211) and the elastic bladder (1212) are smooth metal surfaces.
9. An underground excavation lining apparatus without breaking the ground as claimed in claim 1, characterized in that a support ring (9020) is provided between the two layers of the double-layer drill rod (902), and a mud hole (90201) is provided in the support ring (9020) for mud to flow through.
10. A method of underground excavation lining without breaking the ground, characterized by using an underground excavation lining apparatus without breaking the ground as set forth in claim 2, comprising the steps of: a geological step of ascertaining the underground condition between the start end (91) and the target end (93); drilling a primary hole: drilling the primary hole (92) between the starting end (91) and the target end (93) by a small-caliber drilling machine, splicing a new double-layer drilling rod (902) at the tail end of the drilling rod according to the drilling depth by using the double-layer drilling rod (902), stopping drilling when the drilling bit breaks the earth from the target end (93), dismantling the drilling bit of the target end (93) and the small-caliber drilling machine of the starting end (91), and reserving the spliced double-layer drilling rod (902) in the primary hole (92); digging lining: The pushing part (1) is arranged in the starting end (91), the digging part (3) is connected with a double-layer drill rod (902) positioned at the starting end (91), the round pipe unit (901) is placed on the pushing frame (10), the pushing mechanism (11) pushes against the end face of the round pipe unit (901), and the other end of the round pipe unit (901) pushes against the tail disc (30); The drawing part (2) is installed in the target end (93), the tail end of the double-layer drill rod (902) is inserted into the rotary sealing structure (211) after the outlet end of the double-layer drill rod (902) passes through the rotary structure (210), and the clamping block (2101) clamps the double-layer drill rod (902); A water inlet (2111) of the rotary sealing structure (211) is filled with tunneling liquid, the tunneling liquid flows into the tunneling cutterhead (31) through an inner layer (9021) of the double-layer drill rod (902), and flows back to the slurry outlet (2112) through an outer layer (9022) of the double-layer drill rod (902); the rotary structure (210) is started and rotates, the drawing mechanism (21) is started and pulls the double-layer drill rod (902) outwards, the pushing mechanism (11) pushes the tail disc (30) at the other end, and the tunneling cutterhead (31) tunnels in a soil layer; the round tube unit connection step: After the initial end (91) is lined in a soil layer, suspending the excavating work, and placing a new circular tube unit (901) on the pushing frame (10) to be aligned with the tail end of the original circular tube unit (901) but keeping a gap; The connecting part (12) is used for adjusting positions, the connecting disc (121) is positioned in the middle area of the two circular tube units (901), the telescopic piece (1213) drives the electric heating sheet (1211) to slide in the shell (1210), the inner diameter of the connecting disc (121) is reduced, and the electric heating sheet (1211) is contacted with the end parts of the circular tube units (901); The pushing mechanism (11) pushes against the end faces of the round tube units (901), two sides of the electric heating sheet (1211) are respectively contacted with the end faces of the two round tube units (901), the power source (123) drives the connecting disc (121) to rotate, two sides of the electric heating sheet (1211) polish the end faces of the round tube units (901), and the connecting disc (121) stops rotating after polishing is finished; The electric heating sheet (1211) is started and heats and keeps warm to the end face of the circular tube unit (901), after the heat preservation is finished, the telescopic piece (1213) drives the electric heating sheet (1211) to shrink, the pushing mechanism (11) pushes the outer circular tube unit (901) to move towards the other circular tube unit (901), and the end faces of the two circular tube units (901) are in direct contact and connected together; And (3) repeating the steps until the digging part (3) reaches the target end (93), removing related equipment, and recovering the pavement of the starting end (91) and the target end (93).

Description

Underground excavation lining device and method without damaging ground Technical Field The invention belongs to the field of underground construction, and particularly relates to an underground excavation lining device and method without damaging the ground. Background In municipal construction activities, it is often necessary to excavate and line the passageway in the subsurface. For example, in municipal construction, it is necessary to provide a passage for sewage or water supply and drainage under the ground. In a conventional construction mode, a trench is generally dug by an excavator or other grooving equipment along a planned route, then lining is carried out in the trench or a large-diameter well pipe is paved, and finally, a lining structure or the well pipe is buried, so that the original state of the ground is restored. In the above construction method, the ground needs to be damaged, so that the construction method has many drawbacks and is also limited in many ways. For example, when it is necessary to excavate and lay underground in a city, particularly when it is necessary to traverse a building or road, there is a problem that the earth's surface grooving work is not performed under the conditions or has a great influence on the surrounding environment and traffic. Disclosure of Invention In view of the above-mentioned drawbacks of the prior art, an object of the present invention is to provide an underground excavation lining apparatus and method that does not damage the ground, and is used to solve the problem that the ground must be damaged when the tunnel is excavated and lined, and the road traffic is greatly affected in the prior art. To achieve the above and other objects, the present invention provides an underground excavation lining apparatus and method that does not damage the ground. Wherein, an underground excavation lining apparatus that does not damage the ground for excavating a tunnel between a starting end and a target end, which are bored with a primary hole, and lining a round pipe unit, comprising: a pushing part, a drawing part and an excavating part which are arranged in a straight line and the central line of which coincides with the axis of the primary hole; The pushing part is positioned at the initial end and comprises a pushing frame and a pushing mechanism, an arc-shaped positioning piece is arranged on the pushing frame, the arc center axis of the arc-shaped positioning piece coincides with the initial hole axis, and the pushing mechanism is arranged at the tail end of the pushing frame; The drawing part is positioned at the target end and comprises a drawing frame and a drawing mechanism, the drawing mechanism is arranged on the drawing frame in a sliding manner, a rotary structure and a rotary sealing structure are arranged on the drawing mechanism, the rotary structure is hollow, the axis of the rotary structure coincides with the primary hole, a clamping block is arranged on the hollow inner wall of the rotary structure, and the rotary sealing structure is arranged on the rear side of the rotary structure; The excavating part is positioned in a primary hole between the starting end and the target end, the excavating part comprises a tail disc facing the pushing part and a tunneling cutter disc facing the drawing part, the tunneling cutter disc is rotatably arranged on the final quotaion, the pushing part is connected with the tail disc through a spliced circular tube unit, the drawing part is connected with the tunneling cutter disc through a spliced double-layer drill rod, the other end of the double-layer drill rod passes through the rotary structure and is clamped by the clamping block, and the tail end of the double-layer drill rod is rotatably connected with the rotary sealing structure; the rotary sealing structure comprises a water inlet and a slurry outlet, the double-layer drill rod comprises an inner layer and an outer layer, the water inlet and the slurry outlet are respectively communicated with the inner layer and the outer layer, and inlet water is sprayed out from a nozzle at the tunneling cutterhead and then flows back after entrained slurry. Optionally, the pushing part further includes a connection part, the connection part is disposed at one end of the pushing frame facing the primary hole, and the connection part includes: the sliding seat is connected with the pushing frame in a sliding manner; The connecting disc is rotatably arranged on the sliding seat, and the axis of the connecting disc is coincident with the axis of the primary hole; the gear ring is fixedly arranged on the connecting disc; the power source is arranged on the sliding seat and drives the connecting disc to rotate; The connecting disc comprises a shell, electric heating sheets, elastic bags and telescopic pieces, wherein a plurality of electric heating sheets are annularly distributed in the middle layer of the shell, two side surfaces of each electric heating she