JP4281470B2 - Solidification material filling construction method and construction bag - Google Patents

Description

  The present invention relates to a solidified material filling construction method for filling and solidifying a hydraulic solidified material while corresponding to the shape of the construction site, and a construction bag used therefor, for example, a solidified material such as concrete or mortar in the gap between the mountain retaining wall and the flank. It is suitable for use in filling and placing.

  For example, in the case of a mountain tunnel with a relatively deep root excavation, an H-shaped steel, I-shaped steel, or steel sheet pile is suspended along the wall surface of the retaining wall in order to have a structure that can withstand soil water pressure from the ground. At the same time, the erection is laterally placed inside the hanging member such as the steel sheet pile, and the erection and the mountain retaining wall are stretched and supported by a beam.

  However, the wall surface of the Yamatome wall is often irregular. In this case, an irregular gap is formed between the mountain retaining wall and the flank. However, in order to stably support the earth and water pressure in such a place, the above bulge is not sufficient, and the concrete or mortar is placed in the gap. It is necessary to fill and cast solidified material such as.

  Concrete, mortar, etc. are usually filled with fluid (or slurry) ready-mixed concrete or raw mortar mixed with water and poured into a pre-assembled formwork. To do. The formwork must tightly enclose the space to be filled so that uncured ready-mixed concrete and raw mortar do not leak out, but assembling such a formwork with an irregular gap is Is very troublesome.

  Therefore, as described in Patent Document 1, a gap filling method using a bag is provided as a method for efficiently filling a solidified material such as concrete or mortar into an irregular gap.

  FIG. 11 shows an outline of the gap filling method using the bag. First, as shown to (a) of the figure, after loading and setting the bag 20 'in the gap between the mountain retaining wall 11 and the flank 13, fresh concrete 33 or the like kneaded with water in the bag 20'. Fill. The ready-mixed concrete 33 or the like filled in the bag body 20 ′ is filled in the gap while being confined in the bag body 20 ′. By this filling, the bag 20 'corresponds to the shape so as to fill the gap. By solidifying (consolidating) the ready-mixed concrete 33 in the bag body 20 ', the gap between the mountain retaining wall 11 and the flank 13 can be stably reinforced with the concrete 34 as shown in (b). .

The filling of the ready-mixed concrete 33 and the like is performed using a nozzle 53 as shown in FIG. Flowing ready-mixed concrete 33 or the like kneaded with water by the mixer 51 is fed into the nozzle 53 by a pump 52.
JP-A-8-109633

  It has been found that the conventional technology described above has the following problems. That is, in order to procure the ready-mixed concrete 33 or the like to be filled in the bag body 20 ', a measuring device, a mixer 51, a pump 52, and the like must be prepared on site. Or you have to order a ready-mixed ready-mixed concrete from the factory. However, the former has to install large-scale equipment such as a concrete mixer 51 at each construction site, and further, there are many operations such as washing the ready-mixed concrete remaining on the mixer 51. The latter has a time constraint that requires the ready-mixed concrete to be transported to the construction site within a usable time, and may be difficult to use depending on the location conditions of the construction site. In addition, it is necessary to process the remaining concrete and the like, and there is a trouble that cleaning or neutralization processing must be performed. Furthermore, in either case, there is a problem that there is little time to procure the ready-mixed concrete 33 or the like until filling and placing, and only when that happens, the amount of work increases rapidly and forced irregular work. there were.

  The present invention has been made in view of the above problems, and the purpose thereof is, for example, in the construction such as gap filling described above, and it is not necessary to prepare a large-scale facility such as a concrete mixer on the site. Filling and placing concrete, mortar, cement and other solidifying materials economically and efficiently at designated construction sites without being restricted by the site location conditions, etc. It is to provide a technology that can be used.

In order to achieve the above object, the present invention employs the following means.
That is, the invention according to claim 1 is a solidifying material filling construction method in which a solidified material is filled in a gap and solidified, and the bag body is filled with a hydraulic solidified material in a dry state containing at least cement. The bag body is filled while corresponding to the shape of the gap, and thereafter, water is supplied to the bag body from below, and the water is allowed to permeate the hydraulic solidifying material from below to above. The solidifying material is sequentially solidified from below to above .

The invention according to claim 2 is the solidifying material filling construction method according to claim 1, wherein the bag body is entirely impermeable and can store water, and is accommodated in the outer bag. The inner bag is filled with the hydraulic solidifying material, and has the outer bag and the inner bag. Water is supplied from the water-permeable portion of the inner bag into the inner bag, and the water penetrates into the hydraulic solidifying material in the inner bag from below to above. The hydraulic solidified material is solidified sequentially from the bottom to the top .

Further, the invention according to claim 3 is the solidifying material filling construction method according to claim 2, wherein a plurality of the inner bags are accommodated in the outer bag, and the hydraulic solidifying material is contained in each inner bag. The water is supplied from the water-permeable portion of each inner bag into each inner bag, and the water is permeated from below into the hydraulic solidifying material in each inner bag, so that the hydraulic solidifying material is It is characterized by being solidified sequentially from the bottom to the top .

Furthermore, the invention according to claim 4 is a method in which a hydraulic solidifying material such as cement and slag and, if necessary, a material added with an aggregate or an admixture are filled in a bag while keeping the shape corresponding to the construction site. In the solidification material filling construction method in which the whole is solidified by supplying water from the lower part of the bag-filled hydraulic solidification material and penetrating upward, the inside of the bag made of the water-impermeable sheet material is arranged at the lower part. By dividing into a plurality of bag parts arranged side by side with a partition having a water permeable part, filling the hydraulic solidification material in one of the two adjacent bag parts across the partition, and supplying water to the other, Water is penetrated from the lower part into the hydraulic solidifying material from the water permeable part to be solidified .

Furthermore, the invention which concerns on Claim 5 is the solidification material filling construction method of any one of Claims 1-4, Comprising: The said hydraulic solidification material is the state packaged by the several water-permeable bag And it is filled in the said bag body, the said inner bag, or said one bag part .

Furthermore, the invention according to claim 6 is a construction bag used in a solidifying material filling construction method for filling a solidified material in a gap and solidifying the outer bag, the outer bag being impermeable and capable of collecting water, It has a water-permeable portion only in the lower portion accommodated in the bag, and has a double-structured bag body consisting of a water-impermeable inner bag other than the water-permeable portion. Filled with a solidifying material, water is supplied between the outer bag and the inner bag, water is supplied into the inner bag from the water permeable portion of the inner bag, and the water is hydraulic in the inner bag. The solidified material penetrates from below to above, and the hydraulic solidified material is sequentially solidified from below to above .
Further, the invention according to claim 7 is the construction bag according to claim 6, wherein the water permeable portion of the inner bag is a plurality of pores provided in a lower portion of the inner bag, or a lower portion of the inner bag. It is comprised by the water-permeable material provided in .
Furthermore, the invention according to claim 8 is the construction bag according to claim 6 or 7, wherein both outer portions of the outer bag are provided with tabs, and each tab is provided with a through hole, The outer bag is suspended and supported by a rod-like stopper that is horizontally inserted through the through hole.
Furthermore, the invention according to claim 9 is the construction bag according to claim 8, wherein the rod-shaped stopper includes a rod-shaped member having a tapered tip and a longitudinal direction of the rod-shaped member. It consists of a stopper member that can be locked at a location.
Furthermore, the invention according to claim 10 is the construction bag according to claim 9, wherein the stopper member is formed integrally with a boss portion through which the rod-shaped member is movably penetrated and one end of the boss portion. And having a buttocks.

As described above, according to the solidification material filling construction method and construction bag of the present invention, when filling the gap with the hydraulic solidification material, there is no need to prepare a large-scale facility such as a concrete mixer on site, Further, the hydraulic solidification material can be economically and efficiently filled and placed in the gap without being restricted by the location conditions of the construction site and without being forced to perform irregular work. In addition, since the hydraulic solidification material is sequentially solidified from the bottom to the top, the hydraulic solidification material can be solidified in accordance with the shape even if the gap has an irregular shape.

  FIG. 1 is a cross-sectional view showing an outline of a solidifying material filling construction method and construction bags according to one embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view showing the main part. (A) and (b) in FIG. 2 correspond to (a) and (b) in FIG. 1, respectively.

  In the embodiment shown in the figure, hydraulic solidifying material such as cement or slag is used for filling the gap (construction site) of the horizontal member 14 made of H-shaped steel with concrete, cement or mortar. 31, the inner bag 25 which has the water-permeable part 26 only in the lower part and is impermeable to others, and the outer bag 21 which is water-impermeable as a whole and is capable of collecting water. The hydraulic solidifying material 31 may be a material to which an aggregate or an admixture is added as necessary.

  First, as shown to (a), the double-structure bag body which accommodated the inner bag 25 in the outer bag 21 is formed, and this is loaded and set to a construction location (gap between horizontal members 14 and 14). At the same time, the inner bag 25 is filled with a hydraulic solidifying material 31 such as concrete, cement or mortar which is in an unsolidified and dried state.

  As the hydraulic solidifying material 31, an aggregate and / or sand mixed with cement in a dry state, or cement itself is used. The dried hydraulic solidifying material 31 is filled into the inner bag 25 loaded and set at the construction site together with the outer bag 21. Thereby, the hydraulic solidification material 31 is filled in the construction site while making the inner bag 25 and the outer bag 21 correspond to the shape of the irregular construction site.

  Thereafter, water 39 is supplied between the outer bag 21 and the inner bag 25. The water 39 penetrates from the lower part into the solidifying material 31 in the inner bag 25 from the water-permeable portion 26 of the inner bag 25. Further, the permeated water rises from the bottom to the top due to the water head gradient, and finally permeates the entire solidified material 31 in the inner bag 25. Thereby, as shown to (b), the hydraulic solidification material 31 is solidified (solidified) in the state corresponding to the construction location (gap). That is, the structural solid 32 such as concrete, cement, or mortar can be filled and placed in an irregular construction site.

  Such construction is possible by performing water penetration into the solidified material 31 from below. When water is supplied from the upper part of the solidifying material 31, the water accumulates in the upper part and does not permeate downward, or even if it permeates, it takes a very long time, and only the upper part consolidates first. Therefore, the construction as described above cannot be performed. The water infiltrated from the lower part of the solidifying material 31 quickly spreads over the whole ascending upward as shown by an arrow in FIG. Thereby, the whole solidification material 31 can be solidified reliably.

  In addition, a loading operation for installing the outer bag 21 and the inner bag 25 at a construction site, a bagging operation for filling the inner bag 21 with the solidifying material 31, and a water injection operation for supplying water between the outer bag 21 and the inner bag 25 are performed. Each can be performed with a sufficient time margin. That is, when ready-mixed concrete is used, because the ready-to-use time of the ready-mixed concrete is short, an irregular work in which the amount of work specifically increases within this short time is forced. Without being forced to perform such irregular work, the work can be performed at a work pace suited to the circumstances of the site.

  Further, the following effects can be obtained. That is, the solidified material 31 in a dry and unsolidified state is used and no ready concrete or raw mortar is used. Therefore, it is not necessary to prepare a large facility such as a concrete mixer on site. Since there is no need to transport ready-mixed concrete from the factory, there are no restrictions on the location of the construction site. The solidified material in a dry and non-solidified state can be stored stably as long as it does not get wet with water and can be used without waste in a necessary amount.

  As described above, solidifying materials such as concrete, mortar, cement and the like can be filled and placed economically and efficiently at predetermined construction sites.

  FIG. 3 is a cross-sectional view of a test set used for verifying the construction method according to the present invention and a graph showing the test results.

  The test was carried out using a water tank 21 ′ that looks like the outer bag 21 and a summit container 25 ′ that looks like the inner bag 25, as shown in FIG. Similar to the inner bag 25, a water permeable portion 26 was provided at the lower portion (bottom portion) of the summit container 25 '. Using this test set, a plurality of types (A to G) of hydraulic solidifying materials 31 were subjected to a caking test by water penetration.

  (B) of the figure shows the test results for each material type. In the test, a plurality of types of materials (A to G) are used as the hydraulic solidifying material 31, and after each material (A to G) is packed in the summit vessel 25 ′, the summit vessel 25 ′ is put into the water tank 21 ′. This was performed by immersing in water 39.

All of the materials (A to G) were consolidated by water that had permeated from the lower part of the summit container 25 ′. The change state of the compressive strength (N / mm ² ) with respect to the age of the consolidated material was as shown by the graph lines (A to G) in FIG. The attached symbols (A to G) of the graph lines respectively correspond to the solidified materials (A to G) shown below. The types and blending ratios of the solidifying materials (A to G) are as follows.

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A: 1: 1 mixed material of normal porto and Kisarazu land sand B: 1: 1 mixed material of early strength Porto and Kisarazu land sand C: 1: 1 mixed material of normal porto and fine limestone powder D: Normal porto and limestone fine material 2: 1 mixed material of powder E: Single material of 100% ordinary port F: Single material of 100% ordinary port G: Additive to 1: 1 mixed material of ordinary port and Kisarazu land sand ------ ----------------------------
Remark 1: Port is an abbreviation for Portland cement.
Remark 2: In the case of multiple materials, knead for 1 minute in Hobart (dry kneading).
Remark 3: Use powder dispersant (Polyzos GF-630) as admixture.
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As is clear from the above test results, each of the materials (A to G) was able to form a solid structure by solidifying from the lower part by water penetration. And it turned out that the intensity | strength of the structural solid is also satisfactory.

The following results were found from the test results.
(1) Normal cement has higher strength than early-strength cement.
(2) Admixture (powder dispersant) is not always necessary.
(3) There is less strength variation in the mixed material than in the cement alone.
(4) The use of absolutely dry (completely dried) fine aggregate for the aggregate is effective in increasing the strength of the consolidated body.
(5) A homogeneous air kneading by Hobart is effective in increasing the strength of the consolidated body.
(6) When the solidified material 31 is packed in the inner bag 25, filling with small amounts of vibration greatly contributes to the strength enhancement by making the packing dense.

FIG. 4 is a front view showing an embodiment of the inner bag 25 suitable for use in the construction method of the present invention.
Although the water permeable part 26 is provided in the lower part of the inner bag 25, various embodiment is possible for the water permeable part 26. FIG. (A)-(c) of the same figure shows embodiment of the water-permeable part 26, respectively.
In embodiment shown to (a), the water-permeable part 26 is formed by providing many pores 26a in the lower part of the inner bag 25 which consists of a water-impermeable material. This configuration has the advantage of being simple and low cost.
In the embodiment shown in (b), the water-permeable portion 26 is formed by partially replacing the lower portion of the inner bag 25 made of a water-impermeable material with a water-permeable material 26b such as a non-work cloth. In this case, the water permeable material 26b is disposed in a window shape.
In the embodiment shown in (c), the water permeable portion 26 is formed of a water permeable material 26b such as unemployed cloth. In this case, the water permeable material 26b is arranged so as to form the entire bottom of the inner bag 25. It is installed.

  The configuration of (b) or (c) is slightly more complicated and expensive than the configuration of (a), but water penetration into the entire solidified material is achieved by carrying out water penetration from a spread area. Has the advantage of smoothing. Further, the water permeable material 26b such as unemployed cloth is suitable for reliably preventing leakage of the fine powder of the solidified material.

  FIG. 5 is a sectional view showing another embodiment of the solidifying material filling method according to the present invention. In this embodiment, a plurality of inner bags 25, 25,... Each filled with a hydraulic solidifying material 31 are stored in one outer bag 21. By supplying water 39 between the outer bag 25 and the inner bags 25, 25,..., The hydraulic solidifying material 31 in each inner bag 25, 25,. Can be made. In this embodiment, when the volume of the construction site is large, the economy and workability can be improved by using the outer bag 21 in common.

  FIG. 6 is a sectional view showing still another embodiment of the solidifying material filling construction method according to the present invention. In this embodiment, the hydraulic solidifying material 31 is packed into the inner bag 25 in a state of being packaged in a plurality of water-permeable bags 27, 27,. A water permeable portion 26 is provided in the lower portion of the inner bag 25. By supplying water 39 between the outer bag 25 and the inner bag 25, the hydraulic solidifying material 31 in each of the water-permeable bag bodies 27, 27, ... can be solidified by water penetration from the lower part. . In this embodiment, the filling operation can be simplified by preparing the water-permeable bag body 27 in which the hydraulic solidifying material 31 is packed in advance in a factory or the like. As the material of the water-permeable bag 27, a fine net or unemployed cloth is suitable. Further, if a water-soluble material is used, when the solidified material 21 is consolidated, it can be completely integrated with the consolidated body.

  FIG. 7: is a perspective view which shows the principal part Example of a construction bag suitable for using for the construction method of this invention. The figure shows the outer bag 21, which has tabs 22, 22 on both outer side portions, and is provided with through holes 23, 23 in the tabs 22, 22, respectively. Yes.

  The outer bag 21 needs to be held in a certain posture state until water penetrates into the solidified material therein to complete the consolidation. The tabs 22 and 22 and the through holes 23 and 23 can be suitably used as clues when the outer bag 21 is suspended and supported in a certain posture state.

As a jig for supporting the outer bag 21 in a suspended manner, a rod-like stopper 41 as shown in FIG. The rod-like stopper 41 is horizontally inserted into the through holes 23 and 23 and is horizontally passed using a horizontal member, a mountain retaining wall, etc., so that the outer bag 21 is stably suspended and supported in a constant posture state. This rod-like stopper 41 includes a rod-like member 42 whose tip is tapered to a diameter, and a stopper member 43 that can be locked at an arbitrary position of this rod-like member 41. The stopper member 43 includes a boss portion 44 and a flange portion 45. The flange 45 is integrally formed at one end of the boss 44. The boss portion 44 has a guide hole 46 through which the rod-shaped member 42 is movably penetrated. The rod-like member 42 penetrates freely into the guide hole 46.

  The boss portion 44 is attached with a butterfly bolt 47 screwed into the guide hole 46. When the butterfly bolt 47 is screwed in manually, the screwed end presses the rod-shaped member 42 in the guide hole 46 from the lateral direction and fixes it to the boss portion 44. That is, the rod-shaped member 42 is fixed to the boss portion 44 so as to be freely engaged and disengaged.

  Moreover, as shown in the figure, a holding plate 48 for supporting the side of the outer bag 21 in a planar shape can be suspended from the rod-shaped stopper 41 as required. The holding plate 48 is formed with an L-shaped slit 49 for hooking on the rod-shaped member 42.

8 and 9 are cross-sectional views showing examples of use of the rod-like stopper 41, respectively.
As shown in FIG. 8A, when the outer bag 21 is loaded and set at a construction site (gap) sandwiched between the horizontal members 14 and 14 on both sides, the rod-like member 42 is inserted through the through hole 23. At the same time, by placing both end portions of the rod-shaped member 42 on the horizontal members 14 and 14, the outer bag 21 can be suspended and supported in a predetermined posture.
At this time, if necessary, the pressing plate 48 can be sandwiched between the stopper member 43 and the outer bag 21. Moreover, if the stopper member 43 is attached to both ends of the rod-shaped member 42, the positioning of the rod-shaped member 42 in the longitudinal direction is ensured, and the outer bag 21 can be suspended and supported more stably.

When the outer bag 21 is loaded and set at a construction site (gap) sandwiched between the horizontal member 14 and the mountain retaining wall 11, as shown in FIG. While sticking to the retaining wall 11, the base end side of the rod-like member 42 is hooked and locked on the horizontal member 14 by the stopper member 43.
In this case, one end of the rod-like member 42 is fixed to the mountain retaining wall 11, and the other end is hooked and locked to the horizontal member 14 by the stopper member 43, so that the outer bag 21 is stably supported. Can do. Since the tip of the rod-shaped member 42 is tapered, the piercing to the mountain retaining wall 11 can be performed smoothly.
Note that the tapered shape of the tip of the rod-shaped member 42 does not need to be so sharp, and may be thinned so that the tip surface has a relatively small diameter.

FIGS. 9A and 9B show examples of use in the case where the horizontal member 14 has a bolt hole 141, respectively.
First, in the figure, (a) shows a case where the outer bag 21 is loaded and set at a construction site (gap) sandwiched between the horizontal members 14 and 14 on both sides, and (b) shows the horizontal member 14 and the mountain retaining ring. The case where the outer bag 21 is loaded and set in a construction site (gap) sandwiched between walls 11 is shown.

  The horizontal member 14 such as an H-shaped steel is usually provided with a connecting bolt hole 141 in many cases. If the rod-shaped member 42 is inserted into the bolt hole 141, the suspension support of the outer bag 25 can be performed very stably and reliably. At this time, the insertion operation into the bolt hole 141 can be smoothly performed because the tip of the rod-like member 42 is tapered to have a small diameter. The hole 141 does not have to be a bolt hole, and may be appropriately opened on site.

FIG. 10: is sectional drawing which shows the other Example regarding the solidification material filling construction method and construction bag by this invention.
The embodiment shown in FIG. 2A uses a bag body 20 whose interior is divided into left and right sides. That is, the inner side of the bag body 20 made of a water-impermeable sheet material is divided into a plurality of (two) bag portions arranged side by side with a partition 201 having a water-permeable portion 26 in the lower portion. Then, the hydraulic solidifying material 31 is filled in one of two adjacent bag portions with the inner partition 201 in between, and water 39 is injected into the other. Thereby, water can be permeated from below into the hydraulic solidifying material 31 from the water permeable portion 26 and solidified.

  In the embodiment shown in FIG. 5C, the bag body 20 having the water guiding mat 203 on the inner bottom surface is used. The water conveyance mat 203 has a flat bag shape extending in a plane along the bottom of the bag body 20, and a water permeable portion 26 is formed on the upper surface thereof. The inside of the water guide mat 203 communicates with an external water container 205 via a water guide pipe (tube) 204.

  The bag body 20 is entirely made of an impermeable sheet material. In a state where the bag 20 is filled with the hydraulic solidifying material 31, water 39 is supplied from the water conduit 204 into the water guiding mat 203, whereby water is supplied to the hydraulic solidifying material 31 in the bag 20. It can be infiltrated from below and solidified.

  The water guide mat 203 is effective for smoothly and uniformly performing water penetration into the hydraulic solidifying material 31, but may be omitted if the bag body 20 is not so large. In this case, the water guide tube 204 is inserted into the bag body 20 that is entirely made of an impermeable sheet material, and the distal end portion thereof is positioned below the bag body 20. And in the state which packed the hydraulic solidification material 31 in the bag body 20, water is supplied to the lower part in the bag body 20 from the water conduit 204. Thereby, water can be permeated into the hydraulic solidifying material 31 in the bag body 20 from below to be solidified.

  In the embodiment described above, the structure of the bag body 20 can be simplified, and the water supply to the lower portion of the solidified material 31 can be reliably performed by the water conduit 204.

  The present invention does not require large-scale equipment such as a concrete mixer in construction such as gap filling, for example, and is not restricted by the location conditions of the construction site, and without being forced to perform irregular construction. Solidified materials such as concrete, mortar, and cement can be filled and placed economically and efficiently at a predetermined construction site.

It is sectional drawing which shows the outline | summary of the solidification material filling construction method and construction bag by one Example of this invention. It is sectional drawing which expands and shows the principal part of FIG. It is a graph which shows sectional drawing of the test set used in order to verify the construction method of this invention, and its test result. It is a front view which shows the Example of the inner bag 25 suitable for using for the construction method of this invention. It is sectional drawing which shows another Example of the construction method by this invention. It is sectional drawing which shows another Example of the construction method by this invention. It is a perspective view which shows the principal part Example of a construction bag suitable for using for the construction method of this invention. It is sectional drawing which shows the usage example of the rod-shaped stopper suitable for implementation of this invention. It is sectional drawing which shows another example of use of the rod-shaped stopper suitable for implementation of this invention. It is sectional drawing which shows the other Example regarding the construction method and construction bag by this invention. It is sectional drawing which shows the filling construction method using the conventional ready-mixed concrete etc. and a bag.

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Yamato wall 13 Raising 14 Horizontal member 141 Hole 20 'Bag body (conventional) 20 Composite bag body 201 Middle partition 202 Middle partition 203 Water guide mat 204 Water guide pipe 205 Water container 21 Outer bag 21' Considered as outer bag 21 Water tank for testing 22 Tab 23 Perforation hole 25 Inner bag 25 'Summit container for test as viewed from inner bag 25 26 Water permeation part 26a Pore 26b Water permeable material such as unemployed cloth 27 Water permeable bag body 31 Hydraulic solidifying material 32 Structural solids (consolidated) 33 Ready-mixed concrete (conventional)
34 Concrete etc. (consolidated body) 39 Water 41 Bar-shaped stopper 42 Bar-shaped member 43 Stopper member 44 Boss section 45 Hook section 46 Guide hole 47 Butterfly bolt 48 Holding plate 49 L-shaped slit 51 Concrete mixer 52 Pump 53 Nozzle

Claims (10)

It is a solidification material filling construction method in which a solidification material is filled in a gap and solidified,
Fill the bag body with a hydraulic solidified material in a dry state containing at least cement, and fill the bag body while corresponding to the shape of the gap in this state, and then supply water from below to the bag body, A solidifying material filling construction method characterized in that the water is allowed to permeate into the hydraulic solidifying material from below to above, and the hydraulic solidifying material is sequentially solidified from below to above . The bag body consists of a double-walled outer bag that is impermeable to water as a whole and has a water permeable portion only in the lower portion accommodated in the outer bag, and is otherwise impermeable to the inner bag. The inner bag is filled with the hydraulic solidifying material, and water is supplied between the outer bag and the inner bag so that water is introduced into the inner bag from the water-permeable portion of the inner bag. The water is supplied, and the water is infiltrated into the hydraulic solidifying material in the inner bag from the lower side to the upper side, and the hydraulic solidifying material is sequentially solidified from the lower side to the upper side. The solidifying material filling construction method described in 1. The outer bag contains a plurality of inner bags, each inner bag is filled with the hydraulic solidifying material, water is supplied into each inner bag from the water-permeable portion of each inner bag, 3. The solidified material filling construction according to claim 2, wherein the hydraulic solidified material in the inner bag penetrates from below to above, and the hydraulic solidified material is sequentially solidified from below to above. Method. After filling the solidified material such as cement and slag and, if necessary, adding the aggregate or admixture to the construction site in the bagged state, the solidified material in the bagged state. In the solidification material filling construction method in which the whole is solidified by supplying water from the lower part and penetrating upward,
The inner side of the bag body made of a water-impermeable sheet material is divided into a plurality of bag parts arranged side by side with a partition having a water permeable part at the lower part, and the water is placed on one of the two adjacent bag parts across the partition. A solidifying material filling construction method characterized in that water is infiltrated from the lower part into the hydraulic solidifying material from the lower part by filling the hard solidifying material and supplying water to the other, thereby solidifying. The hydraulic solidifying material is filled in the bag body, the inner bag, or the one bag part in a state of being packaged in a plurality of water-permeable bags. The solidification material filling construction method according to any one of the above. It is a construction bag used in a solidification material filling construction method in which a solidification material is filled into a gap and solidified,
A double-structured bag consisting of an outer bag that is impermeable to water as a whole and has a water permeable portion only in the lower part accommodated in the outer bag, and an impermeable inner bag that is otherwise Prepared,
The inner bag is filled with a hydraulic solidifying material in a dry state containing at least cement, water is supplied between the outer bag and the inner bag, and water is supplied from the water permeable portion of the inner bag into the inner bag. The construction bag, wherein the water is supplied, the water is permeated into the hydraulic solidification material in the inner bag from below to above, and the hydraulic solidification material is sequentially solidified from the bottom to the top . The water permeable portion of the inner bag is configured by a large number of pores provided in a lower portion of the inner bag or a water permeable material provided in a lower portion of the inner bag. Construction bag. The outer bag is provided with tabs on both outer sides, each tab is provided with a through hole, and the outer bag is suspended and supported by a rod-shaped stopper that is horizontally inserted through the through hole. The construction bag according to claim 6 or 7.   The rod-shaped stopper includes a rod-shaped member having a tapered tip and a stopper member that can be locked at an arbitrary position in the longitudinal direction of the rod-shaped member. Construction bag.   The construction bag according to claim 9, wherein the stopper member has a boss portion that allows the rod-shaped member to pass through in a movable manner, and a flange portion that is integrally formed at one end of the boss portion.

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