JPS59130994A - Method of horizontal boring construction - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] Invention X relates to a horizontal poling method.

1. Protection for buried pipe work such as sewage/fuze, gas pipe, water pipe, telegraph, electric cable protection pipe, etc., or for railway and road underground construction. #
In the pipe roof construction method, which is a construction method, - A horizontal boring machine is used to poll the pond in the horizontal direction and push the buried pipe. In addition, the inner diameter is a rounded shape.
A trough pipe 9 is attached to a leading pipe 8 having a tapered tip, and an auger screw is rotatably placed inside the pipe, and the auger screw is positioned within the leading bone filling and end. Cutter 6 provided at tip '5a, 5a
Desired digging is performed by rotating a and pushing in the abdominal guide tube.

However, with this construction method, the lead pipe is first pushed into the pond and advanced.
Tighten the ground at the tip of the leading pipe, then advance the cutter while rotating the auger screw, first excavate the dense ground, and connect the soil with the auger crew in the leading pipe. The cutter is in perfect position as the leading tube.
When reaching i, the auger screw and cutter are stopped,
Or, while driving, the first four harps are moved forward only by a fixed pitch or by a required amount.

This operation is repeated in sequence to perform desired horizontal polling. For this reason, a large amount of force is required from the pilot pipes, and difficulties may arise depending on the soil quality when removing compacted earth and sand with a kettle.

The present invention has been made in view of this, and includes a cutter, an earth removal screw equipped with a cutter suitable for the pond movement, which is fitted with a cutter that can freely exchange odor, into a propulsion tube equipped with a tip at the leading end.
After the earth removal screw rotates 4 times and moves forward to perform digging and earth removal, the cutter is stopped for 1 hour, or while rotating, the propulsion pipe is rotated forward, and this earth removal screw and the propulsion pipe are removed. The gist of this invention is to sequentially and alternately repeat the forward and backward rotation to perform the horizontal polling described in Section 1.

Invention X will be explained below based on an actual IQ example shown in IZ.

First, after the propulsion ``f1'', which is shaped like a pipe with a diameter commensurate with the diameter of the hole to be excavated, is pressed forward with a jack fixed to the support wall side, and a large number of l are attached to the tip Kll of the propulsion g1. The tip 2 is part of the protruding cutter, and the propulsion g1 is made to rotate.Therefore, this propulsion W1 excavates and penetrates into the ground 3 at t[13K] while rotating. The tip 2 provided at the tip of the propulsion tube may be fixed, but it is provided in a replaceable manner so that the tip is suitable for wear and soil W.

A soil removal pipe 4 is disposed within the propulsion pipe 1 over the entire length of the propulsion pipe. Once the outer diameter of the earthen pipe is determined, an earth removal screw 5 is inserted into the earthen earth removal pipe. This earth removal pipe 4 is equipped with a rotational and forward impact device at its rear end so that it moves forward while hitting the inside of the propulsion pipe, and a cutter 6 is installed at the tip of the earth removal screw or earth removal pipe. establish.

This cutter 6 is designed so that it fits the soil quality and is inserted into the attachment/detachment joint, and is used together with a soil removal screw or the like to assist in turning. When polling the Samurai for rocks/reviews, a rock cutter is attached and a rock cutter is also provided, but even when the soil is silt or other, it loosens the dense ground and makes it easier to excavate. Sometimes vibrations are applied to make it easier.

Then, as mentioned above, f! When using a boring machine that performs 1FfiJ, when the operation is given the N principle shown in Fig. 1 and rotated, the soil is removed, IJ knee, H, and the soil/pipe is advanced.

As a result, the earth removal screw and cutter protrude from the tube in the direction of the end of the thrust a bone, that is, thrust 1. r: 2! t.

When the earth is moved forward by a preset distance, the earth removal Su-IJ knee is stopped, but the earth is excavated by the forward flute of this earth removal pipe, etc., and the earth removal agency It is discharged to the rear through the inside.

Next, after stopping this earth removal screw, the propulsion tube 1 is rotated and the leading thruster is used to dig and press while pushing forward. In this sale, the ground is excavated with a cutter, and the ground where the WR trowel propulsion pipe enters is loosened and made softer, so the penetration of the propulsion pipe is simpler than before, and it can be excavated more accurately. It is something that can be done.

In this way, when the propulsion tube advances through the predetermined tolerance W, the rotation and i-push of the propulsion tube are stopped, and the next step 411: The upper screw and cutter are rotated and advanced, and this J+ operation is performed sequentially. This is done in turns and performs ``T-Osho 1'' of Tokoro and Luck.

According to the present invention, an earth unloading screw having one thousand lead screws and a rotary and advancing propelling pipe in which the force and center can be freely exchanged is first designated as e. h I
J-uni moves forward 1, next shikol*! 'If the forward rotation is carried out, Q) Excavation is carried out by repeating the rotational advance of the earth removal scrubber IJ knee and the thruster 4g in turn, so the collapse of the tuyere is difficult. depressions, cracks,
To prevent buildings from collapsing, etc., the dense ground becomes soft at the diseased area at the tip of the propulsion tube, making it easy to enter the propulsion tube and applying moxibustion with one force and one moxibustion. Therefore, it can be done efficiently on any soil type.

[Brief explanation of the drawing]

The first diagram shows the cross section of the boring machine used in the horizontal poling method of the present invention, and the second diagram explains the method! Z% 3rd
□□□ are known examples. 111. Propulsion tube 2□, chip 319. Ground 465. Earth removal pipe 5, , , 1: IE upper screw 628. Cutter 700. Excavated soil886. Leading pipe 9... Trough Vibe patent applicant Kami Kata Co., Ltd. Agent Kiyoshi Hayashi 1 person

Claims (1)

[Claims] The tip of the propulsion tube is equipped with a tip to freely exchange the soil that matches the geology, and the π earth removal screw is installed.
After turning and moving the cutter and the earth removal screw forward to discharge the atomizer, stop the cutter, and then rotate the propulsion R forward and rotate the earth removal screw and the thrust pipe. A horizontal polling method characterized in that a desired horizontal polling is performed by sequentially and alternately manipulating the dynamic #J base.