JPH0771036A - Method of constructing vertical slope - Google Patents

Abstract

PURPOSE:To enable the construction of a main body wall with less earth volume by placing grout on the mountain side while excavating a vertical gutter and, at the same time, erecting a segment in the vertical gutter through a cover plate. CONSTITUTION:A double chain saw 11 is revolved in a state to erect a saw frame 10 vertically with an inclined cylinder 6 to excavate a vertical gutter B. After that, a horizontally moving frame 5 is horizontally moved in the direction of excavation to excavate the vertical gutter B, and grout is placed in a gap between a segment S and the vertical gutter B from grout placing pipes of side 14 on the mountain side. Then, a new segment S1 is inserted between a pair of side plates 14 of a cover plate 13, the existing segment S is guided and is inserted in the vertical gutter B, so that a main body wall is constructed. In addition, the double chain saw 11 is at right angles to the main body wall, a buttress gutter is excavated to insert a buttress segment, and those segments are connected with joints to complete construction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical slope construction method for excavation work.

[0002]

2. Description of the Related Art In order to stabilize the surrounding ground due to excavation, excavation proceeds while forming slopes around the slope with a normal gradient that does not cause circular or linear slip due to soil soil properties.

In addition, a continuous underground wall is constructed while holding the hole wall in advance with muddy water, and after that, reinforcement such as angling (fixing to the ground with a waving material and earth anchor) is carried out.
The excavation proceeds while using the continuous underground wall as a retaining wall.

[0004]

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In the conventional excavation earthworks mainly using slopes, the earthwork amount increases in proportion to the deep excavation. In addition, the slope also becomes a large area, which may cause inconvenience from the ground or the environment. Therefore, a vertical slope is required.

Further, in the case of underground continuous wall construction using mud, securing mud and temporary equipment become large-scale. In addition, problems such as the effect of muddy water on the surrounding ground will occur. Therefore, dry drilling is required.

An object of the present invention is to provide a vertical slope construction method for constructing a vertical slope by dry excavation.

[0007]

According to the method of the present invention, a pair of chainsaws are opened on the excavation side and the return side is covered with a cover plate while a double chain saw is excavated on the ground to form a vertical groove on the mountain side of the vertical groove. While placing grout material on
It is characterized in that a segment is built through the cover plate and a vertical slope is constructed by the built-in segment.

[0008]

In the construction method of the present invention, the double wall saw is used to excavate the vertical groove while filling the grout material, and the segments are built to form the vertical wall body. Therefore, the vertical slope can be constructed by dry excavation.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

Referring to FIG. 1, reference numeral 1 is used to implement the present invention.
An example of a thin wall non-exposed construction excavator shown in is shown.

The excavator 1 is provided with two self-propelled carriages, a front base machine 2 and a rear base machine 3. The two base machines 2 and 3 are connected by a traverse guide rail 4, and a traverse frame 5 having a traverse device is provided on the guide rail 4 so as to traverse freely.

The traverse frame 5 has a tilting cylinder 6
Therefore, the cutting guide 7 is tiltably provided. An earth discharging screw 8 (FIG. 4) is provided at the bottom of the cutting guide 7, and an earth discharging belt conveyor 9 is provided continuously to the earth discharging screw 8. A saw frame 10 parallel to the cutting guide 7 is provided on the rear base machine 2 side.

The saw frame 10 is provided with a double chain saw 11 provided with a pair of chain saws having an excavation side F opened in an eight shape, and is driven by a drive device 12 in a rotation direction R. There is. The return side of the double chain saw 11 is covered with a cover plate 13 having two side plates 14 extending rearward.

Referring also to FIG. 5, a grout material casting pipe (not shown) for driving the grout material C between the segment S and the vertical groove B is provided outside the edge of the side plate 13 on the mountain A side. Has been. Then, the tail seal 1 that prevents the grout material C from entering between the side plates 14 and 14.
5, a side seal 16 and a bottom seal 17 are provided.

FIG. 2 shows another example of the thin wall non-exposure method excavator. In this excavator 1A, the front base machine 2A is used.
A rear base machine 3A and a pair of transverse guide rails 4
A transverse frame 5A is provided on these transverse guide rails 4A and 4A so as to be traversable, and the others are constructed substantially in the same manner as in FIG.

FIG. 3 also shows another example of the thin wall non-exposure method excavator. In this excavator 1B, a traverse frame 5B of one base machine is provided with a traverse guide rail 4B which can traverse freely, and the traverse guide is provided. A pair of outriggers 18a and 18b are provided at the front and rear ends of the rail 4B, respectively, and the others are configured substantially in the same manner as in FIG.

Next, the construction mode will be described.

As shown in FIG. 4, the vertical chain B is excavated by rotating the double chain saw 11 in a state where the tilting cylinder 6 is operated and the saw frame 10 is vertically erected. At this time, the generated soil excavated by the chain saw 11 is discharged by the soil discharging screw 8 and the belt conveyor 9.

Therefore, as shown in FIG. 5, the transverse frame 5
Along the excavation direction F to excavate the vertical groove B, from the grout material casting pipe of the side frame 14 on the mountain A side to the grout material C.
Is placed in the gap between the segment S and the vertical groove B. At this time, the seals 16 to 17 prevent the grout material C from entering the inside of both side plates 14.

Next, as shown in FIG. 6, a new segment S1 is inserted between the pair of side plates 14 of the cover plate 13, and the existing segment S is guided and inserted into the vertical groove B.

In this way, as shown in FIG. 7, the segment S constructs the first-stage main body wall W1, the second-stage main body wall W2, and the third-stage main body wall W3.

Then, as shown in FIG. 8, the double chain saw 11 of the excavator 1 is made orthogonal to the main body wall W3, and the buttress groove B1 is cut.

Next, as shown in FIG. 9, buttress groove B
At 1, the buttress segment s is inserted. Then, the buttress segment s at the end is connected to the segment S of the three-step main body wall W3 by the joint J shown in FIG. 10 to construct the three-step retaining wall WA3.

Further, as shown in FIGS. 11 and 12, the buttress wall B and the buttress wall one-body segment S are formed in the buttress groove B1.
By inserting a, it is possible to construct a rug wall WB that is continuous with the buttress wall AA.

[0025]

As described above, according to the present invention, the vertical soil retaining wall can be constructed by dry excavation to eliminate the drawbacks of the conventional gradient and the effect of muddy water on the surrounding ground.

[Brief description of drawings]

FIG. 1 is a perspective view showing an example of a thin wall non-exposed construction excavator embodying the present invention.

FIG. 2 is a perspective view showing another example of the thin wall non-exposed construction excavator.

FIG. 3 is a perspective view showing another example of a thin wall non-exposed construction excavator.

FIG. 4 is a perspective view illustrating an excavated state of a construction mode.

FIG. 5 is a perspective view illustrating a traversing state of a double chain saw in a construction mode.

FIG. 6 is a perspective view illustrating a segment insertion state of a construction mode.

FIG. 7 is a perspective view illustrating a main body wall construction state of a construction mode.

FIG. 8 is a perspective view illustrating a buttress groove grooving state in a construction mode.

FIG. 9 is a perspective view illustrating a buttress segment insertion state in a construction mode.

FIG. 10 is a front view showing the connection between the main body wall segment and the buttress segment by the joiner.

FIG. 11 is a vertical cross-sectional view illustrating an aspect of construction of a siding wall and a retaining wall.

FIG. 12 is a perspective view of FIG. 11.

[Explanation of symbols]

 A ... Mountain B ... Vertical groove B1 ... Buttress groove C ... Grout material F ... Excavation side J ... Joiner S ... Segment s ... Buttress segment sa ... Substitute Wall and wall 1 body segment W ・ ・ ・ Main body wall WA ・ ・ ・ Retaining wall WB ・ ・ ・ Bulle wall 1, 1A, 1B ・ ・ ・ Thin wall unexposed construction excavator 2, 2A, 2B ・ ・ ・ Front base Machines 3, 3A ... Rear base machine 4, 4A, 4B ... Traverse guide rails 5, 5A, 5B ... Traverse frame 6 ... Tilt cylinder 7 ... Cutting guide 8 ... Excavation screw 9 ... soil discharging belt conveyor 10 ... saw frame 11 ... double chain saw 12 ... drive device 13 ... cover plate 14 ... side plate 15 ... tail seal 16 ... side Seal 17 ... Bottom seals 18a, 18b ... Outriggers

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tadashi Yoshikawa 1-2-7 Moto-Akasaka, Minato-ku, Tokyo Kashima Construction Co., Ltd.

Claims (1)

[Claims] 1. A double chain saw having a pair of chainsaws whose digging side is opened and whose return side is covered with a cover plate, while digging a vertical groove in the natural ground while driving a grout material on the mountain side of the vertical groove. A vertical slope construction method characterized in that a segment is built through a cover plate and a vertical slope is constructed by the built-in segment.