Floor slab member placement device and floor slab member placement method

Abstract

To provide a floor slab member placement device and a floor slab member placement method that can secure the strength of the ground and roadbed directly below floor slab members and place floor slab members at predetermined angles with high precision.SOLUTION: A floor slab member placement device includes an elastic formwork member 4 fixed to the lower peripheral edge of a floor slab member 1, multiple height adjustment devices 5, 5... fixed to the peripheral edge of the floor slab member 1, one or more inclination measurement means 6a, 6a positioned on the upper surface of the floor slab member 1, and filling material feeding means 7 for feeding filling materials 8 into the elastic formwork member 4. The floor slab member 1 can be placed with high precision using the multiple height adjustment devices 5, 5..., and a stable roadbed part 3 can be formed between the floor slab member and the ground 2.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a deck member installation device and a deck member installation method for constructing a runway for a portal-type mobile crane, a gantry crane, heavy machinery, etc. that can travel on the ground. [Background technology]

[0002] BACKGROUND ART Conventionally, in port facilities, shipbuilding facilities, and the like, runways have been constructed whose surfaces are paved with deck members so as to support the loads of large cranes, such as gantry-type mobile cranes, and heavy machinery when they travel along them.

[0003] A known method for paving this type of roadway is to form a roadbed by backfilling the excavated ground with roadbed material such as crushed stone, and then installing a precast deck for the roadway, which has been manufactured in a factory or the like, on top of the compacted roadbed (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 11-280008 Summary of the Invention [Problem to be solved by the invention]

[0005] However, with the conventional technology described above, if there is variation in the degree of compaction of the ground or roadbed, or if the precast deck for the travel path is not installed horizontally, uneven loads may occur after the road is put into service, causing uneven settlement of the roadbed or unevenness in the pavement, which could interfere with the travel of large cranes such as gantry-type mobile cranes and other heavy machinery.

[0006] Therefore, in consideration of these conventional problems, the present invention has been made with the aim of providing a deck slab member installation device and a deck slab member installation method that can ensure the strength of the ground and roadbed directly below the deck slab members and install the deck slab members at a predetermined angle with high precision. [Means for solving the problem]

[0007] The feature of the invention described in claim 1, which solves the above-mentioned conventional problems, is that in a deck member installation device for installing a deck member on the ground via a roadbed section, the device comprises an elastic formwork member having elasticity fixed to the lower peripheral edge of the deck member, a plurality of height adjustment devices fixed to the peripheral edge of the deck member, one or more inclination measurement means installed on the upper surface of the deck member, and a filler supply means for supplying filler into the elastic formwork member, the installation height of the peripheral edge of the deck member is adjusted by the plurality of height adjustment devices based on the measurement value by the inclination measurement means, the elastic formwork member is pressed against the ground, and the deck member is positioned at a desired angle.

[0008] The invention as set forth in claim 2 is characterized in that, in addition to the configuration of claim 1, a filling detector is provided on the underside of the deck member to detect the filling of the filling material.

[0009] The invention as set forth in claim 3 is characterized in that, in addition to the features of claim 1 or 2, the elastic formwork members are made of transparent or semi-transparent materials.

[0010] The invention described in claim 4 is characterized in that, in addition to the configuration of claim 1 or 2, the height of each of the multiple height adjustment devices is automatically adjusted based on the measurement value of the inclination measurement means.

[0011] The feature of the invention described in claim 5 is that in a method for installing a deck member on the ground via a roadbed portion, elastic formwork material having elasticity is fixed to the lower peripheral portion of the deck member, and multiple height adjustment devices are fixed to the peripheral portion of the deck member, and the deck member is temporarily placed on the ground via the height adjustment devices, and then the height of the peripheral portion of the deck is adjusted to position the deck member at the desired angle while pressing the elastic formwork member against the ground using the multiple height adjustment devices based on measurement values ​​from one or more inclination measuring means installed on the upper surface of the deck member, and then filling material is filled into the elastic formwork material to form the roadbed portion between the deck member and the ground.

[0012] The invention as set forth in claim 6 is characterized in that, in addition to the configuration of claim 5, the filling status of the filler material is confirmed by a filling detector installed on the underside of the deck member.

[0013] The feature of the invention described in claim 7 is that, in addition to the configuration of claim 5 or 6, the deck member is maintained at a desired angle by the height adjustment device based on changes in the measurement value by the inclination measurement means while the filler is being filled.

[0014] The feature of the invention described in claim 8 is that, in addition to the configuration of claim 5 or 6, when installing multiple adjacent deck members, the multiple height adjustment devices are used to press the elastic formwork members against the ground based on the measurement values ​​from the inclination measuring means installed on each deck member, while the multiple deck members are positioned at the desired angle, and then filling material is filled into the space surrounded by the elastic formwork members under the multiple deck members, thereby forming a continuous roadbed portion under the multiple deck members. [Effects of the Invention]

[0015] By being equipped with the configuration described in claim 1, the deck member installation device of the present invention can install the deck member at a predetermined angle with high precision and can form a strong roadbed between the ground surface and the deck member.

[0016] Furthermore, in the present invention, by providing the configuration described in claim 2, it is possible to grasp the filling status and compaction status of filler material such as mortar within the elastic formwork member, thereby ensuring stable strength in the roadbed portion.

[0017] Furthermore, in the present invention, by providing the configuration described in claim 3, it is possible to visually check the filling state of the filler filled into the elastic formwork member.

[0018] Furthermore, in the present invention, by providing the configuration described in claim 4, the deck slab members can be installed with high precision regardless of the skill level of the workers.

[0019] By incorporating the configuration described in claim 5, the method for installing deck members according to the present invention can install the deck members at a predetermined angle with high precision, and can form a strong roadbed between the ground surface and the deck members.

[0020] Furthermore, in the present invention, by providing the configuration described in claim 6, it is possible to monitor the fluctuation of the deck slab components due to the filling of the filler, and while grasping the filling status and compaction status, etc., to reliably fill the filler made of mortar or the like, thereby ensuring stable strength in the roadbed portion.

[0021] Furthermore, in the present invention, by providing the configuration described in claim 7, it is possible to prevent the deck member from being displaced from a predetermined angle due to the pressure or bias of the filler during filling.

[0022] Furthermore, in the present invention, by incorporating the configuration described in claim 8, it is possible to form a paved road made up of continuous deck members that are supported by a stable roadbed and are free from unevenness. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a plan view showing an example of an embodiment of a deck slab member installation device according to the present invention. [Figure 2]FIG. [Figure 3] FIG. 2 is a cross-sectional view showing the configuration of the device. [Figure 4] FIG. 4 is a side view showing an example of the height adjusting means of the embodiment. [Figure 5] FIG. 5 is a cross-sectional view taken along the line AA in FIG. 4. [Figure 6] FIG. 5 is a cross-sectional view taken along the line BB of the same. [Figure 7] 1 is a cross-sectional view showing a state before installation work in a method for installing a deck slab member according to the present invention. [Figure 8] FIG. 2 is a cross-sectional view showing the state when the deck member is being transported to the installation location. [Figure 9] FIG. 3 is a cross-sectional view showing the state in which the deck member is placed on the ground. [Figure 10] FIG. 10 is a cross-sectional view showing the state after height adjustment of the deck slab member has been completed. [Figure 11] 10 is a cross-sectional view showing a state in which a filler material is filled into the elastic formwork member of the same. FIG. [Figure 12] FIG. 10 is a cross-sectional view showing the state after installation of the deck member has been completed. [Figure 13] 1A is a plan view showing the state in which a plurality of adjacent deck members are installed, and FIG. 1B is a side view of the same. DETAILED DESCRIPTION OF THE INVENTION

[0024] Next, an embodiment of the deck slab member installation device according to the present invention will be described based on the examples shown in Figures 1 to 6. In the figures, reference numeral 1 denotes a deck slab member, and reference numeral 2 denotes the ground on which the deck slab member 1 is to be installed.

[0025] The deck member 1 is formed into a rectangular plate of a certain thickness using precast members manufactured in advance in a factory, etc., and is installed on the ground 2 after floor excavation via the roadbed portion 3 using a deck member installation device.

[0026] As shown in Figures 1 to 3, the deck member installation device comprises an elastic formwork member 4 having elasticity fixed to the lower peripheral edge of the deck member 1, a plurality of height adjustment devices 5, 5... fixed to the peripheral edge of the deck member 1, one or more inclination measurement means 6, 6 installed on the upper surface of the deck member 1, and a filler supply means 7 for supplying filler 8 into the elastic formwork member 4, so that the deck member 1 can be installed on the ground 2 with high precision and a stable roadbed portion 3 can be formed between the ground 2 and the deck member 1.

[0027] In addition, this deck member installation device is equipped with a filling detector 9 that detects the filling of filler material 8 on the underside of the deck member 1, making it possible to form a strong roadbed portion 3 while controlling the quality of the roadbed portion 3 formed between the ground 2 and the deck member 1.

[0028] The elastic formwork member 4 is made in the form of a thin plate from alkali-resistant rubber (such as silicone rubber (Q), chloroprene rubber (CR), ethylene propylene rubber (EPDM), chlorosulfonated polyethylene rubber (CSM), ethylene-vinyl acetate rubber (EVA), styrene-butadiene rubber (SBR), and other synthetic resins) that does not deteriorate even when in contact with alkaline filler, and its upper surface is fixed to the lower peripheral edge of the deck member 1, forming a rectangular frame in plan view that surrounds the lower peripheral edge of the deck member 1.

[0029] As materials for the elastic formwork member 4, among alkali-resistant rubbers, silicone rubber (Q) and chloroprene rubber (CR), which have alkali resistance, water-stopping properties, and non-water-swelling properties, are particularly preferred.One of these rubbers may be used alone, or multiple types may be mixed and used in combination.

[0030] Furthermore, the adhesive may contain materials other than rubber as long as the alkali resistance, water-stopping properties, and non-water swelling properties are not impaired.

[0031] The alkali resistance refers to the property of not deteriorating or being less susceptible to deterioration in an alkaline environment.

[0032] In this embodiment, the elastic formwork member 4 has been described as having a rectangular cross section, but it may also have a circular, tubular, or inverted semi-cylindrical cross section. Furthermore, when the elastic formwork member 4 has a rectangular or inverted semi-cylindrical cross section as in this embodiment, it is preferable to form it from a material with a hardness of approximately A30 to 40, and when it has a circular or tubular cross section, it is preferable to form it from a material with a hardness of approximately A50. The above hardness range includes the above hardness ±5, and the rubber hardness is a value measured using a Type A durometer conforming to JIS K 6253-1997.

[0033] The thickness of the roadbed portion 3 is preferably about 5 to 50 mm, and accordingly, the height of the elastic formwork member 4 may be about 5 to 50 mm.

[0034] Furthermore, the elastic formwork member 4 may be made of a transparent or semi-transparent material such as polyethylene resin so that the filling state of the filler 8 can be visually observed.

[0035] The inclination measurement means 6,6 is composed of a two-axis inclinometer and is equipped with a plurality of inclination sensors 6a,6a fixed to the upper surface of the deck member 1 and a processing terminal 6b connected to each inclination sensor 6a,6a by wire or wirelessly, so that the processing terminal 6b can calculate the inclination in the two axial directions of pitch and roll at the position of each inclination sensor 6a,6a based on the data transmitted from the inclination sensors 6a,6a.

[0036] In this embodiment, an example is given in which the inclination sensors 6a, 6a are installed near the four corners of the deck member 1, but the installation positions of the inclination sensors 6a, 6a are not limited to this embodiment, and for example, a pair of inclination sensors 6a, 6a may be arranged in a row in the center with a gap between them in the longitudinal direction of the deck member 1.

[0037] As shown in Figures 4 to 6, the height adjustment devices 5, 5... comprise a fixed portion 10 fixed to the peripheral surface of the deck member 1, a nut portion 11 supported by the fixed portion 10, and a support leg 12 consisting of a bolt 12a threaded into the nut portion 11, and by rotating the bolt 12a, the part of the support leg 12 protruding below the nut portion 11 moves up and down.

[0038] The fixing portion 10 is formed into a rectangular plate shape using a steel plate or the like, and has bolt insertion holes 10a, 10a formed at both ends thereof through which fixing bolts 13, 13 are inserted, and the fixing bolts 13, 13 passed through the bolt insertion holes 10a, 10a are tightened into anchor nuts 14 embedded in the side portions of the deck member 1, and the heads of the fixing bolts 13, 13 are fixed to the surface of the fixing portion 10, thereby fixing the height adjusters 5, 5... to the side surfaces of the deck member 1. The fixing portion 10 is fixed to the side surfaces of the deck member 1 with a suspender 15 made of a steel plate or the like sandwiched therebetween, and also functions as a fixture for securing the suspender 15.

[0039] The nut portion 11 has a female screw portion that faces up and down in the center, and a bolt 12a that constitutes the support leg 12 is screwed into the female screw portion 11a.

[0040] The support leg 12 comprises a bolt 12a threaded into the nut portion 11 and a disk-shaped shoe portion 12b fixed to the lower end of the bolt 12a, and the bolt 12a is threaded into the nut portion 11 by rotating the head of the bolt 12a using a tool such as a wrench.

[0041] Furthermore, this support leg 12 has a pointed, pin-shaped fixing pin 12c protruding from the center of the underside of the shoe portion 12b, and the fixing pin 12c is inserted into the surface of the ground 2 where it is installed, thereby restricting horizontal movement relative to the ground 2. An anti-slip member made of rubber or resin may be provided on the underside of the shoe portion 12b.

[0042] The configuration of the height adjusters 5, 5... is not limited to the above-described embodiment. For example, instead of the support legs 12 using bolts, cylinders that expand and contract using hydraulic or pneumatic pressure may be used, or they may be ones that move up and down using a rack and pinion.

[0043] Furthermore, the height of each of the plurality of height adjusters 5, 5... may be automatically adjusted based on the measurement values ​​of the inclination measurement means 6, 6. For example, a servo motor supported by a fixture may be connected to the head of the bolt 12a constituting each of the height adjusters 5, 5..., and the motor may be automatically driven based on the measurement values ​​of the inclination measurement means 6, 6, and the bolt may be rotated in accordance with the measurement value so that the installation angle of the deck slab member 1 falls within a predetermined angle range.

[0044] The filler supply means 7 is composed of a supply pipe 7a whose tip is inserted into the elastic formwork member 4, and a pressure pump 7b that feeds filler 8 made of grout or concrete into the supply pipe 7a.

[0045] The filling detector 9 is not particularly limited, but may be, for example, one that includes one or more vibration devices 9a, 9a fixed to the underside of the deck member 1 and a detector main body 9b connected to the vibration devices 9a, 9a by wire or wirelessly, detects electrical signals when mechanical vibrations are applied to each vibration device 9a, 9a, analyzes the electrical signals with the detector main body 9b, and can identify substances (air, breathing water, filler material 8) around the vibration devices 9a, 9a based on differences in the output peaks of the electrical signals.

[0046] In this case, if an output peak indicating air or breathing water is detected, it is determined that the filling is insufficient, and if an output peak indicating the filler material 8 is detected, it is determined that the filling is sufficient.

[0047] Furthermore, when an output peak indicating the filler 8 is detected, the compaction status can also be confirmed based on the change in the output peak.

[0048] Furthermore, it is desirable to install the vibration devices 9a, 9a in a position where it is difficult to fill the filler 8, more specifically, at a position farther and higher than the tip of the supply pipe 7a, on the underside of the center of the short side of the deck slab member 1.

[0049] Moreover, the filling detector 9 may use a temperature sensor or a contact sensor instead of the above-mentioned vibration device 9a.

[0050] Next, a method for installing a deck using the above-mentioned deck member installation device will be described based on the embodiment shown in Figures 7 to 12. Note that the same components as those in the above-mentioned embodiment will be given the same reference numerals and the description thereof will be omitted.

[0051] As a preliminary preparation, when the deck slab member 1 to be installed is fabricated in advance in a factory or the like, anchor nuts 14 for fixing the height adjusters 5, 5 . . . are embedded in predetermined locations on the side surface of the deck slab member 1.

[0052] Next, the deck member 1 manufactured in a factory or the like is carried to the construction site, and the hanging device 15, the multiple height adjusters 5, 5..., the elastic formwork member 4, the vibration devices 9a, 9a that constitute the filler 8 detector, and the tilt sensors 6a, 6a are fixed in predetermined positions. Note that some or all of the hanging device 15, the multiple height adjusters 5, 5..., the elastic formwork member 4, the vibration devices 9a, 9a that constitute the filler 8 detector, and the tilt sensors 6a, 6a may be installed in advance in the factory or the like where the deck member 1 is manufactured.

[0053] Next, specific work to be done at the installation site will be described in order.

[0054] First, as shown in FIG. 7, the ground 2 at the location where the deck slab member 1 is to be installed is excavated to a predetermined depth, and the top surface of the excavated ground 2 is compacted by a loader or the like.

[0055] Next, as shown in Figure 8, the deck member 1, which already has the height adjustment devices 5, 5... etc. attached, is lifted up by a crane or the like and moved onto the top surface of the excavated ground 2, after which it is lowered while fine-tuning its position, and the deck member 1 is temporarily placed on the ground via the height adjustment devices 5, 5...

[0056] Furthermore, the support legs 12 of each height adjustment device 5, 5... are extended so that the shoe portion 12b is at the same position as the lower end of the elastic formwork member 4 or protrudes downward, so that when the deck slab member 1 is temporarily placed on the ground, the lower end of the elastic formwork member 4 is floating above the ground or is in light contact with it.

[0057] Next, as shown in Figures 9 and 10, measurement is started using the inclination sensors 6a, 6a, and the height of each height adjustment device 5, 5... is adjusted based on the measurement values ​​from one or more inclination measurement means 6, 6 installed on the upper surface of the deck member 1, the installation height of the peripheral part of the deck member 1 is adjusted, the lower end of the elastic formwork member 4 is pressed against the ground, and the deck member 1 is positioned so that it is at the desired angle (horizontal in this embodiment) relative to the ground 2.

[0058] In this case, the height adjustment devices 5, 5... may be adjusted manually by referring to the measurement values ​​of the inclination measurement means 6, 6, or the height may be adjusted automatically by controlling the rotation of the bolts that make up the support legs 12 of each height adjustment device 5, 5... using a servo motor based on the measurement values ​​of the inclination measurement means 6, 6.

[0059] Then, once the elastic formwork member 4 is pressed against the ground and the deck member 1 is positioned at the desired angle relative to the ground 2, filler material 8 such as grout is filled into the elastic formwork member 4 using a filler supply means 7, as shown in Figure 11.

[0060] The filling status of the filler 8 is confirmed using a filling detector 9, which detects an electrical signal when mechanical vibration is applied to the vibration devices 9a, 9a, and analyzes the electrical signal with a detector main body 9b. The filler 8 is supplied into the elastic formwork member 4 until an output peak indicating the filler 8 is detected. If the elastic formwork member 4 is made of a transparent or translucent material, the filling status of the filler 8 can also be confirmed visually.

[0061] At this time, measurement is continued using the inclination measuring means 6,6, and if the deck member 1 tilts due to the pressure of the filler 8 or the like while the filler 8 is being filled and a change occurs in the measurement value using the inclination measuring means 6,6, the height adjustment devices 5,5... are adjusted based on the change, or the filling work of the filler 8 is temporarily suspended until the deck member 1 returns to a stable state, and the deck member 1 is maintained at the desired angle.

[0062] Then, once the filling of the filler 8 such as grout has been completed, the filler supply means 7 is removed, and once the filler 8 has been sufficiently cured and hardened, the roadbed portion 3 is formed between the deck member 1 and the ground.After that, as shown in Figure 12, the height adjustment devices 5, 5..., hanging device 15 and tilt sensors 6a, 6a are removed, and the installation of the deck member 1 is completed.

[0063] The elastic formwork member 4 is integrated with the roadbed portion 3 as a buried formwork, and the vibration devices 9a, 9a constituting the filling detector 9 are buried and remain buried.

[0064] The deck member installation device configured in this manner and the deck installation method using it can precisely adjust the installation height of the peripheral part of the deck member 1 in millimeters using height adjustment devices 5, 5... based on the measurement values ​​from the inclination measurement means 6, 6, and by filling and hardening a filler 8 such as grout between the deck member 1 and the ground while it is supported by the height adjustment devices, a strong roadbed portion 3 can be formed to support the deck member 1.

[0065] In the above-mentioned embodiment, the case where the deck members 1 are installed one by one is described, but when installing multiple adjacent deck members 1,1, a continuous roadbed portion 20 may be formed under the multiple deck members 1,1, as shown in Figure 13.

[0066] In this case, the elastic formwork members 4, 4 fixed under each deck member 1 are connected to each other to form a single formwork, and in this state, the angle of each deck member 1, 1 is adjusted based on the measurement values ​​of the inclination measuring means 6, 6, while the elastic formwork members 4 are pressed against the ground using multiple height adjustment devices 5, 5... attached to each deck member 1, and the multiple deck members 1 are positioned at the desired angle.

[0067] Then, a filler 8 is filled into the space surrounded by the elastic formwork members 4, 4 under the plurality of deck slab members 1, and a continuous roadbed portion 20 is formed under the plurality of deck slab members 1. [Explanation of symbols]

[0068] 1 Deck members 2 Ground 3 Roadbed 4 Elastic formwork members 5 Height adjustment tool 6. Tilt measurement means 7 Filler supply means 8 Filler 9 Filling detector 10 Fixed part 11 Nut 12 Support legs 13 Fixing bolt 14 anchor nut 15 Lifting equipment

Claims

1. A deck member installation device for installing deck members on the ground via a roadbed, The method comprises: an elastic formwork member having elasticity fixed to the lower peripheral edge of the deck member; a plurality of height adjusters fixed to the peripheral edge of the deck member; one or more inclination measuring means installed on the upper surface of the deck member; and a filler supply means for supplying filler into the elastic formwork member; A deck member installation device characterized in that the installation height of the peripheral portion of the deck member is adjusted by the multiple height adjustment devices based on the measurement value by the inclination measurement means, the elastic formwork member is pressed against the ground, and the deck member is positioned at a desired angle.

2. 2. The deck member installation device according to claim 1, further comprising a filling detector for detecting filling of the filler material on the underside of the deck member.

3. 3. The deck member installation device according to claim 1, wherein the elastic formwork members are made of transparent or semi-transparent materials.

4. 3. The deck member installation device according to claim 1, wherein the heights of the plurality of height adjusters are automatically adjusted based on the measurement values ​​of the inclination measuring means.

5. A method for installing a deck member on the ground via a roadbed, comprising: An elastic formwork material having elasticity is fixed to the lower peripheral edge portion of the deck member, and a plurality of height adjusters are fixed to the peripheral edge portion of the deck member, After temporarily placing the deck member on the ground via the height adjustment tool, Based on the measurement values ​​obtained by one or more inclination measuring means installed on the upper surface of the deck member, the elastic formwork member is pressed against the ground by the plurality of height adjusters, and the height of the peripheral portion of the deck member is adjusted to position the deck member at a desired angle; Thereafter, a filler material is filled into the elastic formwork material to form the roadbed portion between the deck member and the ground.

6. The method for installing a deck member according to claim 5, further comprising the step of confirming the state of filling of the filler with a filling detector installed on the underside of the deck member.

7. 7. The method for installing a deck member according to claim 5, wherein the deck member is maintained at a desired angle by the height adjuster based on a change in the measurement value by the tilt measuring means while the filler is being filled.

8. When installing adjacent deck members, and positioning the plurality of deck members at a desired angle while pressing the elastic formwork members against the ground using the plurality of height adjusters based on the measurement values ​​obtained by the inclination measuring means installed on each deck member; A method for installing deck members as described in claim 5 or 6, wherein a filler material is then filled into the space surrounded by the elastic formwork members under the plurality of deck members, thereby forming a continuous roadbed portion under the plurality of deck members.

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