JP3439721B2 - Auger combined press-in method, auger device and sheet pile - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auger combined press-fitting method of press-fitting a sheet pile by an auger device and a press-fitting machine, an auger device thereof, and a sheet pile thereof. TECHNICAL FIELD The present invention relates to an auger-combined press-fitting method that enables auger-combined press-fitting in a narrow space without requiring a lift, an auger device thereof, and a sheet pile thereof.

[0002]

2. Description of the Related Art The auger combined press-fitting method is a method of press-fitting while excavating the press-fitting ground of a sheet pile by an auger device and a press-fitting machine. By this auger combined press-fitting method, the sheet pile can be efficiently press-fitted into the hard ground.

[0003]

However, in the auger combined press-fitting construction method, the auger casing of the auger device is positioned in a predetermined positional relationship in accordance with the length of the sheet pile to be press-fitted, chucked on the press-fitting machine, and then press-fitted. Therefore, because it requires a dedicated high-lift large crane for positioning a long and heavy auger casing in a predetermined positional relationship, it is limited to the case where the conditions of the work space and space height are satisfied. Further, due to the difficulty of positioning with a crane, there are problems in work efficiency and press fitting accuracy.

An object of the present invention is to improve the accuracy of press-fitting and the work efficiency, and also to enable the press-fitting together with the auger, which enables press-fitting together with the auger in a narrow space without requiring a high crane lift, and its auger device and its sheet pile. To provide.

[0005]

In order to solve the above problems, an auger casing is arranged along the web of the sheet pile to be press-fitted, and the sheet pile is press-fitted by the press-fitting machine while excavating the ground by the rotating auger of the auger casing. In the auger combined press-fitting method to do, the sheet pile received along the auger casing is guided so as to be attracted to the auger casing, and the sheet pile is fixed at a predetermined position on the outer peripheral surface of the auger casing while supporting the weight of the sheet pile. A fitting and fixing mechanism having a forced opening portion that is opened by a force exceeding it is provided between the outer peripheral portion of the auger casing and the sheet pile, and the fitting and fixing mechanism tightly fixes the sheet pile and the auger casing before press fitting. Is characterized by press-fitting the sheet pile by the above, then forcibly opening the fitting fixing mechanism and pulling up the auger casing. That. Since the sheet pile is closely fixed to the auger casing by the fitting and fixing mechanism, when the sheet pile is inserted into the sheet pile chuck of the press-fitting machine while the auger casing is held by the auger chuck of the press-fitting machine, the sheet pile is augered by the fitting and fixing mechanism. The sheet pile and the auger casing are integrally fixed to a predetermined position of the casing, and the sheet pile and the auger casing are integrally held by a chuck of the press-fitting machine, so that the sheet pile can be press-fitted while ensuring a predetermined positional relationship of the auger casing with respect to the sheet pile. Also, in the drawing process, the predetermined fitting part of the fitting and fixing mechanism can be forcibly opened by the ascending operation of the auger casing, so only the auger casing can be pulled up as it is after the press-fitting process, and the fitting part is a deformable member. Since it can be simply configured by, for example, continuous press-fitting with simple and efficient auger combination is possible. For the above construction method, in the auger device having the auger casing with the abutment seat for holding the auger casing along the web of the sheet pile to be press-fitted in the press-fitting machine for the auger combined press-fitting method, the auger A force opening part that guides the sheet pile received along the casing so as to pull it toward the same auger casing, fixes the sheet pile to a predetermined position on the outer peripheral surface of the auger casing by supporting the weight of the sheet pile, and releases it by a force exceeding it. A fitting and fixing mechanism including the above is configured between the auger casing and the sheet pile. Similarly, in the auger for the auger combined press-fitting method that can be arranged along the web of the sheet pile, the auger casing for the auger combined press-fitting method is guided so that the sheet pile received along the auger casing is pulled toward the auger casing. The sheet pile is fixed at a predetermined position on the outer peripheral surface of the auger casing by supporting the weight of the sheet pile, and a fitting fixing mechanism having a forced opening portion that opens by a force exceeding it is configured between the auger casing and the sheet pile. . The auger device and the sheet pile enable the auger combined press-fitting method.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a cross-sectional view of a main part at the time of press-fitting according to the auger combined press-fitting method of the present invention, and FIG.
It is the sectional view on the AA line of FIG. The sheet pile 1 to be pressed in is
The auger casing 3 of the auger device is received along the inner surface side of the web 2 via contact seats 4 and 4 provided on the outer peripheral surface thereof, and protrudes from the inner surface of one flange 5 of the sheet pile 1 to the auger casing 3 side. An engaging member 6 that engages with is provided in an inclined manner, and a guide member 7 that constitutes a fitting and fixing mechanism in relation to the engaging member 6 is provided on the outer peripheral portion of the auger casing 3 that faces the flange 5.

On the inner surface side of the other flange 8 of the sheet pile 1,
A ridge portion 9 for preventing disengagement with the auger casing 3
And a similar guide member 10 that functions in a reverse positional relationship symmetrical to the guide member 7 is provided on the outer peripheral portion of the auger casing 3 in the vicinity thereof. The guide member 10 is used when press-fitting the sheet piles by alternately changing their directions. As shown in FIG. 2, the guide member 7 guides the base 6 a provided so as to hang down from the engaging member 6 of the sheet pile 1 to draw the sheet pile 1 toward the auger casing 3 and engage with the engaging member 6. Then, the upper half is formed so as to be inclined so that the sheet pile 1 is fixedly supported at a predetermined position, and a strong base portion 7a is provided. The engagement member 6 secures the strength capable of supporting the weight of the sheet pile 1 and receives a force exceeding the weight from the base portion 7a of the guide member 7 so that the engagement member 6 is deformed as shown by the chain line so as to be a thin plate material or the like. It is configured to be forcibly opened by.

FIG. 3 is an explanatory view of the operation of the present invention. The engaging member 6 of the sheet pile 1 and the guide member 7 of the auger casing 3 having the above-described configuration chuck the auger casing 3 to a press-fitting machine (not shown) to hold it upright, and the sheet pile 1 of the press-fitting machine is held by the crane (not shown). When inserted into the chuck, the engaging member 6 of the sheet pile 1 is guided along the guide member 7 as shown in FIG. The sheet pile 1 is pulled to the auger casing 3 by this guiding action, and the sheet pile 1 is fixed at a predetermined position by engaging the engaging member 6 with the guide member 7 as shown in FIG. 3B.

The sheet pile 1 and the auger casing 3 are integrally held by the chuck of the press-fitting machine, so that the sheet pile 1
It is possible to press fit the sheet pile 1 while ensuring the positional relationship of the auger casing 3 with respect to. In the pulling-out step after the press-fitting step, the engaging member 6 is forcibly opened like a chain line by pulling up the auger casing 3, and the auger casing 3 can be pulled out leaving the sheet pile 1.

As described above, in the auger combined press-fitting method of the present invention, it is not necessary to adjust the height position of the auger device by hoisting it with a large crane, so that the work efficiency of press-fitting is improved and a high crane lift is required. It is possible to press fit together with the auger in a narrow space. Further, since the sheet pile is closely fixed to the auger casing, the size of the chuck portion of the press-fitting machine is not increased, and both are integrated as a countermeasure against the earth pressure penetrating between the sheet pile and the auger casing. By doing so, it is possible to improve the precision of the press-fitting position.

FIG. 4 is a view similar to FIG. 2 showing another configuration example of the present invention. The engaging member 6 of the sheet pile 1 is a guide member 7
This is an example in which the base portion 6b is formed by linearly extending the inclination that engages with. The engaging member 6 together with its base portion 6b pulls the sheet pile 1 inserted along the auger casing 3 toward the auger casing 3 in the same manner as described above.
Can be engaged with the guide member 7 to fix and support the sheet pile 1 at a predetermined position. Further, the engaging member 6 secures the strength capable of supporting the own weight of the sheet pile 1 and is formed by a deformable thin plate member or the like so as to be forcibly openable by a force exceeding the strength, as shown by a chain line. Similar functionality can be configured.

The embodiment of the fitting and fixing mechanism described above is
Since it is clear that the same effect as the above can be obtained as long as it is a member having a guiding function and a fixing function, description of various combinations will be omitted. Further, the forced opening portion includes a movable opening and the like which is generally opened by an excessive force, and it is clear that the constituents that can be configured are not limited to the sheet pile side, and therefore description thereof will be omitted.

[0013]

The auger combined press-fitting method, the auger apparatus, and the sheet pile of the present invention have the following effects. Since the sheet pile is closely fixed to the auger casing by the fitting and fixing mechanism configured between the auger casing and the sheet pile, if the sheet pile is inserted into the sheet pile chuck of the press-fitting machine while the auger casing is held by the auger chuck of the press-fitting machine. The sheet pile is closely fixed to a predetermined position of the auger casing by a fitting and fixing mechanism, and the sheet pile and the auger casing are integrally held by a chuck of the press-fitting machine to secure a predetermined positional relationship of the auger casing with respect to the sheet pile. The sheet pile can be pressed in. Further, during the drawing process, the auger casing can be drawn by forcibly opening the fitting fixing mechanism. Therefore, with this auger combined press-fitting method, it is not necessary to lift the auger device with a large crane to adjust its height position, so that the work efficiency of press-fitting can be improved and the construction accuracy can be improved, and a high crane or the like is required. It is possible to press fit together with an auger in a narrow space where the upper part is blocked.

[Brief description of drawings]

FIG. 1 is a lateral cross-sectional view of a main part at the time of press fitting by an auger combined press-fitting method of the present invention

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is an explanatory view of the operation of the present invention.

FIG. 4 is a view similar to FIG. 2 showing another configuration example of the present invention.

[Explanation of symbols]

1 sheet pile 2 Web 3 auger casing (auger device) 4 Abutment seat 5 flange 6 Engagement member, forced opening part (fitting and fixing mechanism) 6a base 6b base 7 Guide member (fitting and fixing mechanism) 7a base

Continuation of the front page (56) Reference JP-A-52-126906 (JP, A) JP-A-11-350479 (JP, A) JP-A-52-113003 (JP, A) JP-A-3-25117 (JP , A) Japanese Unexamined Patent Publication No. 9-316875 (JP, A) SAI 63-116543 (JP, U) (58) Fields investigated (Int.Cl. ⁷ , DB name) E02D 7/00

Claims (3)

(57) [Claims] 1. An auger combined press-fitting method in which an auger casing is arranged along a web of a sheet pile to be press-fitted, and a rotary auger of the auger casing excavates the ground while press-fitting the sheet pile with a press-fitting machine. The sheet pile received by the auger casing is guided so as to be pulled toward the auger casing, and the sheet pile is fixed to a predetermined position on the outer peripheral surface of the auger casing by supporting the sheet weight of the sheet pile and supporting it by a force that exceeds it. The fitting fixing mechanism is provided between the outer peripheral portion of the auger casing and the sheet pile, and the fitting fixing mechanism tightly fixes the sheet pile and the auger casing. The press fitting method combined with auger is characterized in that the auger casing is pulled up by forcibly opening. 2. An auger device having an auger casing provided with an abutment seat for holding the auger casing along the web of the sheet pile to be press-fitted in the press-fitting machine for the auger combined press-fitting method in a state where the auger casing is arranged. A force opening part that guides the sheet pile received along the casing so as to pull it toward the same auger casing, fixes the sheet pile to a predetermined position on the outer peripheral surface of the auger casing by supporting the weight of the sheet pile, and releases it by a force exceeding it. An auger device characterized in that a fitting and fixing mechanism provided with is configured between an auger casing and a sheet pile. 3. An auger casing for an auger combined press-fitting method in which an auger casing for an auger combined press-fitting method can be arranged along a web of a sheet pile, and a guide for pulling the sheet pile received along the auger casing to the auger casing. Then, the sheet pile is fixed at a predetermined position on the outer peripheral surface of the auger casing while supporting and fixing the weight of the sheet pile, and a fitting fixing mechanism having a forced opening portion that opens by a force exceeding it is provided between the auger casing and the sheet pile. A sheet pile for an auger combined press-fitting method characterized by being configured.