JPH063109B2 - Connection device for mud pipes in the mud shield method - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a connection device for a mud transmission pipe in a muddy water shield construction method, and particularly for facilitating pipe connection with a mud transmission pipe connected to a rear side. The present invention relates to a device having a structure in which a pipe of a mud pipe for sending and discharging can be piped to a side portion inside a shield mine and an underground passage can be secured.

<Prior art> As a fluid transportation form that is indispensable for the mud shield method, a mud pipe and a mud pipe equipped with an expansion tube have been laid inside the shield mine to follow the propulsion movement of the excavator. The expansion and contraction pipes are extended, and the mud pipes are usually installed in parallel with the sleepers provided on the bottom surface inside the shield pit at right angles.

<< Problems to be Solved by the Invention >> However, according to this structure, the mud sending and discharging pipe must be installed in parallel with the transportation track, and the battery car and the mud sending and discharging pipe running on the track. It was difficult to secure an underground passage in a small-diameter shielded mine because there was a great risk of coming into contact with a trolley that was towed by, and a shelter had to be secured.

In order to solve this kind of problem, the rear end of the mud pipe connected to the mud port on the face side may be formed into a curved tube, but in this case it expands and contracts as the excavator moves. The task of connecting pipes etc. is laborious and time consuming and therefore not a realistic solution.

The present invention has been made in view of the above problems, and a muddy water shield construction method in which a subsequent sending / discharging mud pipe can be arranged on the side surface of the shield pit, and a connection with the subsequent pipe can be performed easily and with a small number of people. An object of the present invention is to provide a connection device for a mud pipe in the above.

<< Means for Solving the Problem >> In order to achieve the above-mentioned object, the present invention provides a bogie installed so as to be able to travel on a track arranged in a shield shaft, and is movable in the front-rear direction and the width direction on the bogie. A pair of support substrates installed, and rotatably arranged on each of the support substrates, with the front part facing the mud discharge port and the mud discharge port on the cutting face side, and the rear part shielded from the track. A pair of feed and discharge mud pipes bent in a substantially S shape toward the side of the mine, an adjusting mechanism for moving and adjusting each of the support substrates in the front-back and width directions, and rotational adjustment of the feed and discharge mud pipes. And an adjusting mechanism for doing so.

<< Operation >> According to the above configuration, the rear end of the mud pipe which is provided on the truck is bent into an S shape, and the rear end is positioned toward the side of the shield pit.

When connecting the subsequent mud pipes installed on the side of the shield pit to these, adjust the adjustment mechanism to adjust the position to the front and back and to the left and right, and adjust the rotation to adjust the vertical height. Can be combined.

<< Embodiment >> An embodiment of the present invention will be described in detail below with reference to the drawings.

FIG. 1 and FIG. 2 show a trolley for a sludge-delivery pipe according to the present invention.

In the figure, 1 is a transportation track 2 laid inside the shield mine.
It is a trolley that is installed above the wheels 3 so that it can travel.

A pair of support substrates 4 installed on the carriage 1 so as to be movable back and forth, a pipe support frame 5 installed on each support substrate 4 so as to be movable left and right, and a pair of bearings provided on each pipe support frame. A mud pipe 7 and a mud pipe 8 which are rotatably supported by a bracket 6 respectively, and a balance weight 9 fixedly arranged at a corner of the truck 1 for preventing an unbalanced load applied to the truck 1. There is.

A flange portion 7 is provided at the tip of the mud feeding pipe 7 and the mud discharging pipe 8 for flange connection to a mud feeding port and mud discharging port (both not shown) on the face of a face via an expansion pipe (not shown) or the like.
a and 8a are formed and are connected to the center side via a rotary joint (not shown). The central portion is rotatably supported by the bearing brackets 6, and the rear end side is substantially S.
It is bent in a letter shape, and is parallel to upper and lower two stages on the side surface of the segment inner wall of the shield shaft which is located away from the transport track 2, and has collars 7b and 8b formed on its rear end surface.

A pair of guide rails 1 fixed to the upper surface of the trolley 1 in parallel with each other on the lower surface of each of the support boards 4 along the front-rear direction.
It has a plurality of pairs of guide rollers 12 that roll along 0 and 11, and a screw receiving portion 15 that is coupled to the feed screw 14 is fixedly arranged at the center of the lower surface.

One end side of each feed screw 14 is rotatably supported by a bearing block 16 provided at the rear end of the bogie 1, and a handle 1 for rotation operation provided at a protruding end of the bearing block 16 is provided.
By integrating this with the handle 7 and rotating this handle 17, the respective support substrates 4 can be moved in the front-rear direction.

The pipe supporting frame 5 has the supporting substrate 4 at the bottom thereof.
A pair of guide rails 18 fixed along the width direction of the
It has a plurality of pairs of rollers 20 rolling along 19.

Further, in the center of the lower portion of the pipe supporting frame 5, a feed screw 22 having one end protruding to one side of the support substrate 4 via the bearing block 21 and a rotary operation handle 23 coupled to the feed screw 22 are provided in the same manner as described above. The handle 23 can be moved in the width direction by rotating the handle 23.

Further, the mud pipe 7 and the mud pipe 8 rotatably supported by the pair of bearing brackets 6 provided on the upper portion of the pipe supporting frame 5 have the bracket 26 at the center position between the bearing brackets 6. Integrated by welding,
A feed screw 24 for rotation adjustment and a handle 25 connected to the feed screw 24 are arranged in this, and the mud feed pipe 7 and the mud feed pipe 8 can be rotationally moved by rotating each handle 25.

As described above, the mud sending pipe 7 and the mud discharging pipe 8 can be adjusted to move back and forth, left and right, and up and down. When connecting with the succeeding pipe, etc., the respective handles 17, 23, 25 are rotated to operate the rear end. The connection can be made by aligning the connection collars 7b and 8b with the connection ports of the subsequent pipes.

FIGS. 3 (a) and 3 (b) show the conventional mud pipe arrangement in the segment 30 and the mud pipe arrangement when the connecting device of the present invention is used.

FIG. 1A shows a conventional arrangement, in which the main track 3 is provided on one side of the sleeper 31 which is laterally laid on the bottom of the segment 30.
2 is formed, on the other side, a mud pipe 34 and a mud pipe 35, which are parallel to this and are connected to the cutting face, are arranged.
A safety passage 36 having a relatively narrow width is provided between the pipe 2 and the mud pipes 34, 35. Therefore, in this case, there is a danger in working after passing the locomotive, so that the mud pipe 3
It is necessary to temporarily install a shelter 37 on the upper part of the 4,35.

On the other hand, when the connecting device of the present invention is used, as shown in FIG. 2B, the succeeding mud feeding pipe 34 and the mud feeding pipe 35 can be arranged inside the segment 30 in two upper and lower stages. The other side of the sleeper 31 can be used as it is as the safety passage 36, and there is no need to temporarily provide a shelter or the like.

<< Advantages of the Invention >> As described in detail with reference to the embodiments above, in the present invention, the rear end of the pipe for sending and discharging mud pipes is bent into an S shape, and the rear end is on the side of the shield pit. When connecting the subsequent mud pipes to these parts, adjust the adjustment mechanism to adjust the position to the front and back and to the left and right, and adjust the rotation to adjust the vertical height. Can be combined.

Therefore, according to the present invention, there is no inconvenience in connection even if the subsequent mud pipe is arranged on the side of the segment, and by arranging the mud pipe on the side, the safety passage can be secured sufficiently wide, and it can be used as a shelter. It does not require temporary work and its removal work, and is suitable for ensuring safety.

[Brief description of drawings]

FIG. 1 is a perspective view of a connecting / disconnecting device for mud pipes according to the present invention,
Fig. 2 is a partial sectional view, and Figs. 3 (a) and 3 (b) are explanations showing a comparison between the conventional mud pipe arrangement in the segment and the mud pipe arrangement using the connecting device of the present invention. It is a figure. DESCRIPTION OF SYMBOLS 1 ... Bogie 2 ... Orbit 4 ... Support substrate 5 ... Pipe support frame 6 ... Bearing bracket 7 ... Mud pipe, 8 ... Mud pipe 14, 22, 24 ... Feed screw (adjustment mechanism) 17, 23, 25 ... Handle (adjustment mechanism) 34 ... Subsequent mud pipe, 35 ... Subsequent sludge pipe

Claims (1)

[Claims] 1. A trolley installed in a shield pit so as to be able to travel on a track, a pair of support substrates movably installed in the trolley in the front-rear direction and the width direction, and a support substrate mounted on each support substrate. A pair that is movably arranged, has its front portion positioned to face the mud outlet and the mud outlet on the cutting face side, and has the rear portion bent into a substantially S-shape toward the side surface side of the shield pit deviated from the track. Mud water, an adjustment mechanism for moving and adjusting each of the support substrates in the front-rear direction and the width direction, and an adjustment mechanism for rotationally adjusting each of the support and discharge mud pipes. Connection device for mud pipes in the shield method.