KR101209070B1

KR101209070B1 - A advance sleeve box structure for tunnel construct

Info

Publication number: KR101209070B1
Application number: KR1020100111476A
Authority: KR
Inventors: 이병택
Original assignee: 이정섭
Priority date: 2010-11-10
Filing date: 2010-11-10
Publication date: 2012-12-10
Also published as: KR20120050120A

Abstract

The present invention relates to a tunnel propulsion housing sleeve for tunnel construction, by constructing a dual structure of the tunnel housing excavation housing sleeve and the propulsion housing to be a step-by-step propulsion construction.
The present invention for realizing this, the rectangular forward propulsion housing sleeve 100 is guided by the two galleries (1) pre-installed for the underground tunnel excavation is carried out, the upper plate 11 for supporting the earth pressure Between the lower plate 12 and a plurality of partition plate 13 in the vertical direction at regular intervals are installed, the first supporter jack 14 is formed on the rear end side, the partition plate 13, the upper plate 11 ) The earth pressure support cylinder 15 is configured to prevent the tip portion from sagging due to earth pressure. The upper plate 11 has a sliding groove 16 open to the rear end side, and transports the excavated soil to the gallery tube 1 side. To earth transfer conveyor 17 is installed, the bulkhead plate 13 has a leading body sleeve (10) formed with a cutting hole (13a) for preventing interference with the earth transfer conveyor (17); It is configured to be connected to the rear end side of the lead body sleeve 10, the propulsion jack 21 for propelling the lead body sleeve 10 is configured, the upper guide portion 26 to be inserted into the sliding groove (16) ) Is provided, characterized in that the propeller sleeve 20 is configured with a second supporter jack 24 for supporting the earth pressure in the vertical direction.

Description

Leading propeller sleeve for tunnel construction {A ADVANCE SLEEVE BOX STRUCTURE FOR TUNNEL CONSTRUCT}

The present invention relates to a tunnel sleeve for underground tunnel construction, and more particularly, to a forward propeller box sleeve structure which is positioned at the foremost of the sleeve sleeves being pushed underground to improve construction efficiency and shorten air. It is about.

In general, tunnels are spaces created by digging soil or rock and beneath the surface of the earth. It is usually made by digging up the ground leaving the ground in the upper part, but it is also included in the tunnel by digging into the groove shape from the surface, making the tunnel structure in it, and then burying it again.

This technique is used to create a relatively shallow subway road under the roads in the city. Today, the use and aspects of tunnels are diversified, digging into the ground to prevent soil and rocks from collapsing and falling, such as large cavities for underground power plants, underground car parking lots, warehouses, underground refineries, and underground roads. Building a structure that permanently supports the loading board is also broadly called a tunnel.

The use of the tunnel includes traffic tunnels such as railroads and road tunnels, and water tunnels for hydroelectric power generation, irrigation, and pipeline tunnels such as water and sewage and wire lines.

In addition, underground power plants, substations, and underground cavities for storing oil can also be included in tunnels as tunnels. Tunnels are divided into rock and earth tunnels according to the geology of excavation, and are subdivided into mountain tunnels, urban tunnels, cutlery tunnels, open tunnels, shield tunnels and immersion tunnels according to the construction site and construction method.

These tunnels have been developed by various construction methods, but have been progressed up to now, but not only do people's walking, commercial activities, and traffic problems, but also have a problem that adversely affects nearby structures due to severe earth pressure changes and ground behaviors.

In the prior art to improve such a problem, Patent No. 10-0322844, there are fewer elements that interfere with the flow of citizens walking or commercial activities and traffic, minimizing the inconvenience of surrounding life due to tunnel construction, After forming and hardening the loop, the soil inside the tunnel was removed, so there was little change in earth pressure and ground behavior, so that safer construction could be achieved.

However, in the prior art, since a plurality of sub steel pipes are continuously press-fitted between the left and right main steel pipes, there is a problem such as reduction in work efficiency and increase in construction period due to construction of the sub steel pipes.

Meanwhile, in order to solve such a problem, in the technique of Korean Patent Application No. 2010-45810, which is filed and filed by the applicant in advance, it is manufactured in advance in the state in which the rails 2 are installed in both gallery tubes 1 as shown in FIG. In pushing and pushing the enclosure 100, the enclosure 100 is constructed between the upper plate 110 and the lower plate 120 to form a rectangular shape consisting of a plurality of partition plate 130 in the vertical direction to dry the tunnel There has been suggested a method to improve the construction efficiency.

However, in the prior art, since the propulsion force is sequentially transmitted to the individual enclosures 100 by the propulsion jack installed at one end, the number of the enclosures 100 is increased so that the deformation may be generated in the middle of the enclosure. More advanced enclosure sleeve structures are needed.

The present invention has been proposed to improve the above problems in the prior art, and the object of the present invention is to provide a propulsion jack sleeve structure of self-configured propulsion jack to make a more effective propulsion of the housing sleeve.

In order to achieve the above object, the present invention provides a rectangular forward thrust carrier sleeve which is guided by two gallery pipes pre-installed for underground tunnel excavation and is constructed in a vertical direction between the upper plate and the lower plate for supporting earth pressure. A plurality of bulkhead plates are installed at regular intervals, and a first supporter jack is formed at the rear end side, and the partition plate has a earth pressure supporting cylinder for supporting the front end of the upper plate, and the upper plate has a sliding groove to the rear end side. A forward conveyance sleeve formed to be open and provided to transport the excavated toll at both sides of the gallery tube, wherein the partition plate has a leading enclosure sleeve formed with a cutout for preventing interference with the conveying conveyor; It is configured to be connected to the rear end side of the lead body sleeve, a propulsion jack for propelling the lead body sleeve is configured, the upper portion is provided with a guide portion to be inserted into the sliding groove, the second supporter jack for supporting the earth pressure in the vertical direction It is characterized by consisting of the configured propeller sleeve.

The present invention, by configuring the tunnel sleeve for excavation enclosure in a dual structure of the leading and propulsion housing to achieve a step-by-step propulsion construction has an effect that can be done more effective tunnel drying.

In particular, it is possible to quickly transfer the soil generated in the working process to the conveying conveyor exhibits the advantage of reducing the work time.

In addition, the deformation of the plate tip by the earth pressure during the propulsion process is prevented by the earth pressure supporting cylinder can improve the construction efficiency.

1 is a schematic process diagram of the underground tunnel drying method in the prior art.
Figure 2 is a side cross-sectional view of the present invention sleeve.
Figure 3 is a cross-sectional side view of the forward enclosure of the present invention the sleeve body.
Figure 4 is a schematic plan view of the present invention the sleeve body,
4a is a state diagram when disconnected.
4b is a state diagram when combined.
5 is a partial front structural view of the present invention sleeve.
Figure 6 is a front view of the gallery tube guide state of the present invention sleeve.
7 is an operational state diagram of the present invention sleeve.
Figure 8 is a side view of the housing sleeve according to another embodiment of the present invention.

Hereinafter, a specific embodiment of the present invention will be described with reference to FIGS. 2 to 8.

First, referring to the overall structure of the lead propeller sleeve according to an embodiment of the present invention through FIGS. 2 to 7, the lead enclosure sleeve 10 serving as a lead pipe advancing along the tunnel construction position, and the lead enclosure The propeller housing sleeve 20 is connected to the rear end of the sleeve 10 and transmits a propulsion force.

Among them, the forward conductor sleeve 10 has a structure in which the upper plate 11 and the lower plate 12 are supported at a predetermined height by the first supporter jack 14, and a plurality of partition plates for partitioning the inner space are provided. (13) is configured at regular intervals, the partition plate 13 is provided with a earth pressure supporting cylinder (15) for preventing the tip portion of the upper plate (11) from being deformed or sag by earth pressure. The conveying conveyor 17 for conveying to the gallery tube 1 site | part of both sides is comprised.

In the present embodiment, the partition plate 13 has an upper end portion and a lower end portion of the upper plate 11 and the lower plate 12 fastened to the bolts 11a and 12a to form an easy disassembly and assembly structure. An incision hole 13a was formed along the feed path of 17) to prevent mutual interference.

In addition, the upper plate 11 is formed with a sliding groove 16 is open to the rear end side so that the guide portion 26 of the pushing body sleeve 20 can be inserted into the slide, the sliding groove 16 is divided into a plurality of spaces inside In addition, the partition partition wall 16a for supporting the upper earth pressure is provided at regular intervals, and the guide roller 16b for smoothly sliding the guide part 26 is provided on the bottom surface of the sliding groove 16. .

In addition, a reinforcing bracket 19 is formed at the upper side of the outer wall side of the partition plate 13 located on the outermost side of the upper plate 11 so as to prevent sagging of the upper plate 11 in the gallery tube 1. It was.

In addition, the lower plate 12 has a locking projection (12b) protruding to the front end side for limiting the advance range of the propulsion housing sleeve 20.

On the other hand, the propelling body sleeve 20 has a propulsion jack 21 for propelling the forward body sleeve 10 is configured in a plurality of locations in the horizontal direction, the upper guide portion to be inserted into the sliding groove (16) ( And a second supporter jack 24 for supporting earth pressure in the vertical direction.

In particular, the guide portion 26 has a guide groove (26a) is formed at a predetermined interval so as to be guided by the partition partition (16a).

In addition, a guide roller 22 for reducing friction with the bottom of the lower plate 12 of the lead enclosure sleeve 10 is constructed.

In the drawings, reference numeral 30 denotes a guide rail installed on the floor during construction.

The effect of the tunnel excavation process and operation using the present invention leading propeller sleeve having a structure as described above will be described.

First, the gallery tube (1) is constructed as a preparatory step for the site installation of the propeller sleeve of the present invention, for the initial gallery tube (1) construction to the construction position of the tunnel vertically from the ground in accordance with the usual process After the vertical shaft is formed, the gallery tube (1), which is the main steel pipe, is pushed in the horizontal direction from the vertical shaft.

The construction method of the gallery tube is not only a method of repeatedly pushing the lead pipe (not shown) and the gallery pipe 1 at the rear end (aka TRcM method), but also connecting the lead pipe to a sleeve pipe equipped with a separate hydraulic propulsion jack. By pushing the leading pipe from the front end to the front end repeatedly and installing the reaction table without the hydraulic jack on the rear end, the gallery tube 1 can be constructed in such a way as to support the gallery tube 1 from being pushed (aka CTM method). The construction work is a known technique through the prior art, so detailed descriptions and drawings will be omitted.

As such, when the construction of the gallery tube 1 is completed, the sleeve housing 100, which is previously produced, is guided along the gallery tube 1 while cutting the mutually opposite portions of the gallery tube 1 sequentially. It is pushed in the middle of the hydraulic propulsion method, in which the construction is made by placing the propeller sleeve sleeve of the present invention horizontally at the head of the enclosure (100).

That is, the sleeve structure of the present invention made up of the coupling structure of the lead body sleeve 10 and the propulsion body sleeve 20 is both ends are guided along one opening of the gallery tube (1) as shown in FIG. (1) can be seen that the vertical support (2) is installed inside to support the earth pressure, and the guide rollers (3, 4) in the form of bearings for supporting the forward movement of the housing is installed on the upper and lower sides of the opening. .

In this state, the operator removes the earth and sand in the forward direction of the forward sleeve 10, transfers it to the gallery tube 1 through the conveying conveyor 17, and installs the guide rail 30 in the lower direction along the forward direction.

In addition, after driving the propeller sleeve 10 by driving the propulsion jack 21, when the main propulsion jack (not shown) installed on the reaction force side is operated, the guide part 26 guides along the sliding groove 16. As it is being propelled to the sleeve 20 is advanced.

Therefore, the housing 100 is positioned in the space secured by the distance at which the propulsion housing sleeve 20 is advanced.

In addition, since the guide rollers 16b and 22 are formed at the contact surface with the leading enclosure sleeve 10 during the forward movement of the propeller sleeve 20, smooth movement can be achieved while minimizing mutual friction. .

Therefore, the tunnel by cutting the gallery tube (1), removal of earth and sand, installation of the guide rail 30, forward forward of the forward housing sleeve 10, forward of the propulsion housing sleeve 20, installation of the enclosure 100 sequentially tunnel The sleeve enclosure 100 can be continuously constructed along the loop.

In addition, in the propulsion process, the upper plate 11 is supported by the earth pressure supporting cylinder 15, so that the upper plate 11 can be prevented from being bent or deformed by the earth pressure.

On the other hand, the housing sleeve of the present invention has the advantage that the height can be easily adjusted as needed in the field.

That is, since the upper and lower portions of the partition plate 13 form a coupling structure detachable from the upper plate 11 and the lower plate 12 by the bolts 11a and 12a, respectively, the bolts 11a and 12a are unscrewed. After adjusting the distance between the upper plate 11 and the lower plate 12 by using the hydraulic pressure control of the first supporter jack 14 and the second supporter jack 24, the partition plate 13 is made to meet the same and again. By fastening with bolts 11a and 12a, it can be seen that the height of the housing sleeve can be easily adjusted according to the site situation.

8 shows a crushing screw mounting structure according to another embodiment of the present invention.

In other words, as shown in the front end of the sleeve sleeve 10 to constitute the crushing screw 18 for excavation to move up and down and left and right to cut the soil.

When this configuration is achieved, it can be seen that more effective soil cutting is made by the crushing screw 18 in the forward process of the forward enclosure sleeve 10, thereby further improving the tunnel construction efficiency.

In addition, although specific embodiments of the present invention have been described and illustrated above, it is obvious that construction work using the propeller sleeve of the present invention may be variously modified by those skilled in the art.

For example, in the above embodiment, the process of constructing the tunnel loop by advancing the propeller sleeve in a horizontal position has been described. However, when constructing the wall trench as necessary, the propeller sleeve may be used vertically. Will be.

Therefore, it should be understood that such modified embodiments should not be understood individually from the technical spirit and scope of the present invention, and such modified embodiments should be included in the appended claims of the present invention.

10: lead enclosure sleeve 11: upper plate
12: lower plate 13: partition wall plate
14: first supporter jack 15: earth pressure supporting cylinder
16: sliding groove 16a: partition bulkhead
16b: guide roller 17: conveying conveyor
18: crushing screw 19: reinforcement bracket
20: propelling body sleeve 21: propulsion jack
22: guide roller 24: the second supporter jack
26: guide portion 26a: guide groove
30: guide rail

Claims

The leading forward propeller sleeve (100) of the rectangular shape in which the propulsion construction is performed under the guidance of both gallery tubes (1) pre-installed for underground tunnel excavation,
In order to support the earth pressure, a plurality of partition plate plates 13 are installed at regular intervals between the upper plate 11 and the lower plate 12 at regular intervals, and at the rear end, a first supporter jack 14 is formed. The plate 13 is formed with a pressure support cylinder 15 for preventing the tip of the upper plate 11 from sagging by the earth pressure. The upper plate 11 has a sliding groove 16 open to the rear end, and is excavated. A sewage conveying conveyor 17 for conveying the soil to the gallery tube 1 side is installed, and the bulkhead plate 13 has a leading body sleeve having a cutout 13a formed therein to prevent interference with the soil conveying conveyer 17. 10;
It is configured to be connected to the rear end side of the lead body sleeve 10, the propulsion jack 21 for propelling the lead body sleeve 10 is configured, the upper guide portion 26 to be inserted into the sliding groove (16) ) Is provided, the propeller housing sleeve for tunnel construction, characterized in that consisting of the propeller housing sleeve 20 is configured with a second supporter jack 24 for supporting the earth pressure in the vertical direction.

The method according to claim 1,
The sliding groove 16 partitions the interior into a plurality of spaces and is provided with partition partitions 16a for supporting the upper earth pressure at regular intervals, and the guide portion 26 corresponding thereto partition partitions 16a. Tunnel drying forward propeller housing sleeve, characterized in that the guide groove (26a) is cut in a predetermined interval so that it can be guided by.

The method according to claim 2,
Tunnel drying forward propeller housing sleeve, characterized in that the bottom surface of the sliding groove 16 is provided with a guide roller (16b) for smooth sliding movement of the guide portion (26).

The method according to claim 1,
The front propeller housing sleeve for tunnel drying, characterized in that the front end of the lead sleeve sleeve 10 is composed of a crushing screw 18 for excavation.

The method according to claim 1,
The bulkhead plate 13 is a tunnel propulsion forward propulsion chamber characterized in that the upper and lower ends of the bolt 12a are fastened to the upper plate 11 and the lower plate 12, respectively, to facilitate disassembly and assembly. sleeve.

The method according to claim 1,
Reinforcing brackets 19 are formed at upper sides of the outer wall side of the bulkhead plate 13 at the outermost sides of the leading body sleeve 10 to prevent sagging of the upper plate 11 in the gallery tube 1. A forward propeller housing sleeve for tunnel drying.

The method according to claim 1,
On the bottom surface of the lower plate 12 of the forward housing sleeve 10, a locking jaw 12b for limiting the advance range of the propulsion housing sleeve 20 is protruded at the tip side, and the propelling body sleeve 20 has a lower portion A guide propeller sleeve for tunnel construction, characterized in that a guide roller (22) is configured to reduce friction with the bottom of the plate (12).