KR100903136B1 - Structure and method for measuring subsidence of reinforced portion of soft ground by using top pile - Google Patents

Abstract

A structure and a method for measuring subsidence of the reinforced portion of weak foundation by using a top pile is provided to measure the subsidence of surface of the reinforced portion of weak foundation or the subsidence of a deep layer of the weak foundation. A structure and a method for measuring subsidence of the reinforced portion of weak foundation by using a top pile comprises: a top pile mold(100) consisting of a body portion having a tapered shape and a pile portion expanded from the bottom of the body portion; a pipe(110) which is installed to pass through the body portion and the pile portion of the top pile mold and which is expanded to the top of the body portion; and a measuring rod(120) being inserted into the deep layer of the weak foundation. The subsidence of surface of the reinforced portion of weak foundation or the subsidence of a deep layer of the weak foundation is determined by measuring the gap between the top of the pipe and the top of the measuring rod at specified period.

Description

 Structure and method for measuring subsidence of soft ground reinforcement using top piles {Structure and method for measuring subsidence of reinforced portion of soft ground by using top pile}

The present invention relates to a settlement measurement structure and a method for measuring soft ground reinforcement using a top pile, and more specifically, it can be confirmed by measuring whether or not the ground surface or depth of a site reinforced with soft ground using a top pile is settled. It relates to a subsidence measurement structure and measurement method.

In general, the foundation method using a factory-made concrete top pile is a method of laying a top-shaped concrete pile on the foundation ground surface of the structure, which is widely used as part of the foundation in the soft ground. By distributing the load and transmitting it smoothly to the ground, it serves to reinforce the soft ground.

The factory-made concrete top pile used for the purpose of reinforcing the soft ground is to arrange a plurality of top piles on the ground of the soft ground in a plane, and then fill the space with aggregates such as crushed stone and reinforce it. As the reinforcing effect is immediately available, it can be easily used as the foundation ground of the building, which has the advantage of excellent efficiency and economic efficiency of the ground reinforcement.

Conventional concrete top pile used for this purpose is to pour concrete into a molded mold (top pile), and then to manufacture it as a unit in the factory, the shape of which is buried in the body part and the ground There is a problem in storage because it consists of the pile portion to hold the city center, there was a problem that the damage rate is high even when transported to the construction site because of the bulky and heavy.

In addition, the cost of transportation is also high, it is uneconomical, and the work is difficult, such as alignment in the construction surface, there was also a problem that the overall work efficiency is not good.

Therefore, in recent years, in the manufacture of the top pile, instead of manufacturing in the factory, the on-site pour type top pile method that can be manufactured immediately in the field is being implemented.

The cast-in-place top pile method is to make a top pile mold in a factory with synthetic resin material, place the top pile mold on the soft ground of the construction site, and then pour concrete into the top pile mold to form the top pile. By doing so, the construction and construction of the top pile at the same time to be made.

Such a site-pouring top pile method does not require the production of a concrete top pile in a factory, so there is no inconvenience in storage and transportation, and thus the construction efficiency is high, and the construction method is briefly described with reference to FIG. 1. The explanation is as follows.

First, the plurality of top pile molds 2 are vertically and horizontally aligned, and then bound by rebar (not shown) or the like. At this time, a structure for binding the plurality of top pile molds 2 in alignment is disclosed by a number of patent documents including Patent No. 779848, Utility Model Registration No. 426635, and the detailed description thereof will be omitted.

Thereafter, the surface of the soft ground 4 is evenly worked (ground leveling process), and then, a civil engineering mat such as a nonwoven fabric is applied on the ground, and a plurality of top pile molds 2 assembled on the mat are successively installed.

Next, after the concrete 6 is poured into the top pile mold 2 and cured, the top is filled with aggregates such as crushed stone 8 in the space formed between the top pile molds 2, and the top is subjected to a compacting process. By laying concrete on top of the pile mold 2 and curing, the foundation concrete layer 10 is formed to complete the construction.

As described above, according to the soft ground reinforcement construction using the factory-made concrete top pile or the soft ground reinforcement construction using the site-pouring top pile, the soft ground is strengthened and the bearing capacity becomes stronger even when constructing a building on it. As a result of the lack of accurate measurement of the settlement of the ground surface or soft ground depth of the reinforcement site after reinforcement, the problems of the reinforcement could not be identified.

Therefore, even if a problem of reinforcement construction occurs, there was a problem in not grasping the matter to be supplemented.

In addition, since there is no means to accurately measure the settlement of the ground surface or the soft ground depth of the reinforcement part after the reinforcement, it is impossible to confirm that there is no problem in the construction method. There was a problem that it was difficult to imprint the excellence of the construction.

The present invention has been devised in view of the above problems, the soft ground reinforcement using the top pile to measure and determine whether the ground surface or the soft ground depth of the site where the soft ground is reinforced using the top pile It is an object to provide a subsidence measurement structure and measurement method of the site.

That is, after reinforcing the soft ground using the top pile, by measuring whether the ground surface of the reinforcement part or the deep ground of the soft ground is subsided, if the settlement is made to determine where the settlement takes place to solve the problem later, The purpose is to make the reinforcement work more solid and to imprint the superiority of construction method to the project owner when settlement is not made.

Settlement measurement structure of the soft ground reinforcement site using the top pile according to the present invention for achieving the above object, the top pile form consisting of a body portion formed in the form of ordinary light and narrow, and the pile portion extending from the bottom of the body portion; ; A tubular body which is installed to penetrate the body portion and the pile portion of the top pile mold and is extended to a predetermined length to an upper portion of the body portion; It characterized in that it comprises a measuring rod drawn through the tube to the depth of the soft ground.

Here, a reference piece bent in the horizontal direction is formed on one side of the upper end of the tubular body, one end of the measuring rod is formed of a measuring piece bent in the horizontal direction, so that the reference piece and the measuring piece are equilibrated at a horizontal interval. It is preferred to be configured to achieve.

In addition, the top pile mold is installed on the soft ground in a state in which the plurality is aligned, the interior of the concrete is poured and cured, the space between the top pile mold is filled with crushed stone, the top of the top pile mold Concrete is laid to form a foundation concrete layer, it is preferable to be installed so that the upper portion of the tube and the measuring rod to the upper portion of the foundation concrete layer.

Settlement measurement method using the settlement structure, (a) to align the surface of the soft ground, consisting of a body portion and a pile portion, the plurality of top pile molds installed through the tubular body so as to extend a predetermined length to the upper portion of the body portion Installing to a state; (b) placing and curing concrete in the top pile mold; (c) filling and crushing the crushed stone in the space between the top pile molds; (d) depositing concrete on the top of the top mold to form a foundation concrete layer; (e) drawing a measuring rod from the top of the tube to the deeper ground of the soft ground; (f) measuring the interval between the upper end of the tube and the upper end of the measuring rod at regular intervals, and determining whether the top pile reinforcement part and the ground surface are settled by the change of the measured amount. do.

In this case, one side of the upper end of the tubular body is formed of a reference piece bent in the horizontal direction, and the upper end of the measuring rod is also formed of a measuring piece bent in the horizontal direction so that the measurement piece and the reference piece are horizontally spaced at a predetermined interval. Preferably, the method further comprises the step of making parallel.

On the other hand, the settlement measurement structure of the soft ground reinforcement site using the top pile according to the present invention, the top pile form consisting of a body portion formed in the form of a light beam and a pile portion extending from the bottom of the body portion; A tubular body which is installed to penetrate the body portion and the pile portion of the top pile form and extends by a predetermined length to an upper portion of the body portion, and is further extended by a predetermined length from the bottom of the pile portion; It may be characterized in that it comprises a measuring rod drawn into the deep layer of the soft ground through the tube.

In this case, one side of the upper end of the tubular body is formed of a reference piece bent in the horizontal direction, one end of the measuring rod is formed of a measuring piece bent in the horizontal direction, so that the reference piece and the measurement piece are horizontally spaced at a predetermined interval. It is preferably configured to achieve.

In addition, the top pile mold is installed on the soft ground in a state in which the plurality is aligned, the interior of the concrete is poured and cured, the space between the top pile mold is filled with crushed stone, the top of the top pile mold Concrete is laid to form a foundation concrete layer, it is preferable to be installed so that the upper portion of the tube and the measuring rod to the upper portion of the foundation concrete layer.

In addition, it is preferable that the bottom of the pile portion of the top pile mold and the tubular body penetrating the bottom are fixedly welded.

Settlement measurement method using the settlement structure, (a) to compact the surface of the soft ground, consisting of a body portion and a pile portion, the tubular body is installed to extend through a predetermined length to the upper portion of the body portion, and the lower portion of the pile portion, respectively Installing the plurality of top pile molds in an aligned state; (b) placing and curing concrete in the top pile mold; (c) filling and crushing the crushed stone in the space between the top pile molds; (d) depositing concrete on the top of the top mold to form a foundation concrete layer; (e) drawing a measuring rod from the top of the tube to the deeper ground of the soft ground; (f) measuring the interval between the upper end of the tube and the upper end of the measuring rod at regular intervals, and determining whether the soft ground depth of the top pile reinforcement is subsided due to a change in the measured amount thereof. It features.

In this case, one side of the upper end of the tubular body is formed of a reference piece bent in the horizontal direction, and the upper end of the measuring rod is also formed of a measuring piece bent in the horizontal direction so that the measurement piece and the reference piece are parallel to the horizontal direction at a predetermined interval. It is preferable to further comprise a step to achieve.

As described above, according to the settlement measurement structure and measuring method of the soft ground reinforcement site using the top pile according to the present invention, after reinforcing the soft ground using the top pile, the deep surface of the reinforcement site or the soft ground By measuring whether the settlement is settled, it is possible to supplement the problem in the future by checking where the settlement takes place, whereby more robust reinforcement can be made, and if the settlement is not made to the construction owner It is very useful to be able to imprint the excellence of.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

<First Embodiment>

FIG. 2 is a perspective view illustrating a top pile mold applied to a soft ground reinforcement part using the top pile according to the first embodiment of the present invention, and FIG. 3 is a longitudinal cross-sectional view of FIG.

In addition, Figure 4 is a perspective view of a state arranged to be arranged in bundles on the soft ground using the top pile mold of Figure 2, Figure 5 is a basic concrete in a state of reinforcing the soft ground using the top pile mold of FIG. FIG. 6 is a partial plan view in a state in which the layer is excluded, and FIG. 6 is a view showing the settlement measurement structure of the soft ground reinforcement part using the top pile according to the first embodiment of the present invention. It is AA sectional drawing of a state.

As shown in Fig. 2 and Fig. 3, a top pile form consisting of a body portion 102 having a shape of an upper and lower strait, and a pile portion 104 extending from a lower portion of the body portion 102. The tubular body 110 of constant diameter is provided in the vertical direction at the center part of 100. As shown in FIG.

The lower end of the tubular body 110 is fixedly coupled to penetrate the bottom of the pile portion 104 of the top pile mold 100, is extended to a predetermined length to the upper portion of the body portion (102).

The bottom portion of the pile portion 104 of the top pile mold 100 and the circumferential surface of the tubular body 110 passing through the bottom portion are fixedly welded, and concrete is poured into the top pile mold 100 although not shown. In curing, a sealing material is interposed around the through-hole of the bottom of the pile portion 14 to prevent concrete from leaking between the bottom of the pile portion 14 and the tubular body 110.

Here, one side of the upper end of the tubular body 110 is formed with a reference piece 112 bent in the horizontal direction, the diameter of the measuring rod 120 drawn through the tubular body 110 is smaller than the diameter of the tubular body 110 ) Is provided as an object, one end of the measuring rod 120 is also formed of a measuring piece 122 bent in the horizontal direction.

After reinforcing the soft ground 200 using the top pile mold 100 including the tubular body 110 and the measuring rod 120 provided as an object as described above, and measuring the settlement of the reinforcement part. The following description is made.

First, after excavating the soft ground 200 to a predetermined depth, the surface is compacted, a plurality of top piles installed through the tubular body 110 to extend by a certain length to the upper portion of the body portion 102 of the top pile mold 100 As shown in FIG. 4, the mold 100 is installed while being aligned in a bundle.

Next, the concrete 210 is poured into the top pile mold 100 and cured, followed by filling and crushing the crushed stone 220 in the space between the top pile mold 100. )

In addition, the base concrete layer 230 may be formed by laying concrete on the top of the top pile mold 100. In this case, the portion extending from the top of the top pile mold 100 in the tubular body 110 may be formed of the base concrete layer ( 230, but the upper part, that is, the reference piece 112 is formed to be exposed to the outside (see Fig. 6).

Next, the measuring rod 120 is inserted from the upper portion of the tube 110 and the lower portion of the tube is inserted into the deep layer of the soft ground 200, but the measuring piece 122 formed at one end thereof is the reference of the tube 110. Side by side parallel to the piece 112 to be spaced apart by a predetermined interval.

In this way, the reinforcement construction of the soft ground 200 is completed using the top pile, and the reference piece 112 of the tubular body 110 and the measuring rod ( The distance between the measuring pieces 122 of 120 is measured using a high precision measuring instrument such as a micrometer or a vernier calipers.

After a certain period of time, the distance between the reference piece 112 of the pipe 110 and the measurement piece 122 of the measuring rod 120 is measured and compared with the interval at the time of initial reinforcement construction. .

At this time, if the interval at the time of initial reinforcement construction and the interval after a certain period of time is the same, it can be seen that the ground surface settlement of the reinforcement site of the soft ground 200 using the top pile does not occur.

By the way, if the interval between the reference piece 112 of the tubular body 110 and the measurement piece 122 of the measuring rod 120 measured after a certain period elapsed more than the interval at the time of initial reinforcement construction, 120 remains intact and it is judged that the tubular body 110 has been settled down.

That is, since the measuring rod 120 and the tube 110 may sit down according to the subsidence of the ground but cannot rise upward, the reference piece 112 of the tube 110 and the measuring rod 120 If the space | interval between the measurement pieces 122 spreads, this is because the tube body 110 only fell down.

As described above, that the tubular body 110 is settled downward, as shown in FIG. 6, the base concrete layer 230 in which a part of the tubular body 110 is buried, and the base concrete layer 230 is lowered. It is a case where the ground surface, such as a built top pile and the crushed stone layer 220, subsides.

Therefore, the tube 110 reference piece 112 and the tube 110 at a point in time elapsed from the interval between the tube 110 reference piece 112 and the measurement piece 122 of the measuring rod 120 at the time of reinforcement construction. When the gap between the measurement pieces 122 of the measuring rod 120 is further increased, it is possible to identify and compensate for the problem by checking that the ground surface is settled by the gap.

On the other hand, the interval between the tubular 110, the reference piece 112 and the measuring piece 122 of the measuring rod 120 at the time of reinforcement construction, When the same as the interval between the measurement piece 122 of the measuring rod 120, it is possible to confirm that the ground surface is not settled to confirm the superiority of the soft ground 200 reinforcement construction using the top pile.

Here, the tube 110 reference piece 112 and the measurement at a point in time elapsed from the interval between the tube 110 reference piece 112 and the measurement piece 122 of the measuring rod 120 at the time of construction. The interval between the measurement pieces 122 of the rod 120 may be further narrowed, in which case the tubular body 110 remains intact and the measurement rod 120 falls down.

In this case, although no settlement occurs on the ground surface, it may be determined that the deep portion of the soft ground 200 into which the lower portion of the measuring rod 120 is inserted is settled.

However, in the measurement structure according to the first embodiment of the present invention, the lower end of the tubular body 110 is installed to the bottom of the pile part 104 of the top pile mold 100, whereby the deep layer of the soft ground 200 may be settled. In this case, since it is highly likely that the settlement will occur at the same time due to the lack of support of the reinforcement portion and the ground surface of the soft ground 200 constructed using the top pile, the determination of the exact settlement portion may be somewhat difficult. The measurement structure and measurement method according to the example are also proposed.

Second Embodiment

FIG. 7 is a perspective view illustrating a top pile mold applied to a soft ground reinforcement part using the top pile according to the second embodiment of the present invention, and FIG. 8 is a longitudinal cross-sectional view of FIG.

In addition, Figure 9 is a perspective view of a state arranged to be arranged in bundles on the soft ground using the top pile mold of Figure 7, Figure 10 is a base concrete in a state of reinforcing the soft ground using the top pile mold of FIG. FIG. 11 is a partial plan view in a state in which a layer is excluded, and FIG. 11 is a view illustrating a settlement measurement structure of a soft ground reinforcement part using a top pile according to a second embodiment of the present invention. It is sectional drawing of the BB line of a state.

For reference, in describing the second embodiment of the present invention, the same parts as in the first embodiment will be described with the same reference numerals.

As shown in Fig. 7 and Fig. 8, the top pile form consisting of a body portion 102 having an ordinary light bottom narrow shape and a pile portion 104 extending from a lower portion of the body portion 102. The tubular body 110-1 of constant diameter is provided in the vertical direction at the center part of 100. As shown in FIG.

The lower end of the tubular body 110-1 extends by a predetermined length through the bottom of the pile part 104 of the top pile mold 100, and is also extended by a predetermined length to the upper portion of the body part 102. It is.

At this time, the periphery of the bottom of the pile part 104 of the top pile mold 100 and the outer surface of the tubular body 110-1 penetrating the bottom part are fixedly welded or the like.

In addition, although not shown, in the concrete being poured and cured in the top pile mold 100, the pile portion 14 to prevent the concrete from leaking between the bottom of the pile portion 14 and the tubular body 110-1. The sealing material is interposed around the through-hole of the bottom part.

Here, one side of the upper end of the tubular body 110-1 is formed with a reference piece 112-1 bent in the horizontal direction, the diameter of the tubular body 110-1 is smaller than the diameter of the tubular body 110-1. Measuring bar 120 is drawn through the object is provided, one end of the measuring bar 120 is also formed of a measuring piece 122 bent in the horizontal direction.

After reinforcing and constructing the soft ground 200 using the top pile mold 100 having the above-described configuration, a method of measuring a deep settlement of the soft ground 200 below the reinforcement portion will be described.

First, after excavating the soft ground (200) to a predetermined depth, the surface is compacted, a plurality of pipes 110-1 are installed through the tubular body (110-1) so as to extend by a certain length to the upper portion of the body portion 102 of the top pile mold (100) As shown in Fig. 9, the top pile mold 100 is installed while being aligned in a bundle.

At this time, the lower end portion extending through the bottom of the pile portion 104 of the top pile in the tubular body 110-1 is inserted into the deep layer of the soft ground 200.

Next, after the concrete 210 is poured into the top pile mold 100 and cured, the step of filling the crushed stone 220 in the space between the top pile mold 100 is performed. )

In addition, the base concrete layer 230 may be formed by laying concrete on the top of the top pile mold 100. In this case, a portion extending from the upper portion of the top pile mold 100 in the tubular body 110-1 may be formed on the base. To be embedded in the concrete layer 230, but the upper portion, that is, the reference piece 112-1 is formed to be exposed to the outside (see Fig. 11).

Next, the measuring rod 120 is inserted from the upper portion of the tube 110-1 into the deep layer of the soft ground 200, and the measurement piece 122 formed at one end thereof is the reference of the tube 110-1. It is positioned parallel to the piece (112-1) and spaced apart by a predetermined interval.

In this way, the reinforcement construction of the soft ground 200 is completed using the top pile, and the reference piece 112-1 of the tubular body 110-1 is completed while the measurement structure of the soft ground 200 reinforcement portion is completed. The distance between the measuring piece 122 of the measuring rod 120 is measured using a high precision measuring instrument such as a micrometer or a vernier calipers.

Then, after a certain period of time, the interval between the reference piece 112-1 of the tube 110-1 and the measurement piece 122 of the measuring rod 120 is again measured and contrasted with the interval at the time of initial reinforcement construction. To compare.

At this time, if the interval at the time of the first reinforcement construction and the interval after a certain period of time is the same, it can be seen that the deep settlement of the bottom of the soft ground 200, that is, the soft ground 200 using the top pile does not occur.

By the way, if the interval between the reference piece 112-1 of the tubular body 110-1 and the measurement piece 122 of the measuring rod 120 measured after a certain period of time has been narrower than the interval at the time of initial construction, This can be determined that the tube 110-1 is intact and the measuring rod 120 is settled down.

That is, since the measuring rod 120 and the tube 110-1 can sit down according to the settlement of the ground but cannot rise upward, the reference piece 112-1 of the tube 110-1 and the tube 110-1. The interval between the measurement pieces 122 of the measurement rod 120 is narrowed because only the measurement rod 120 is settled downward.

As such, when the measuring rod 120 is settled downward, a deep layer of the soft ground 200 into which the lower portion of the measuring rod 120 is inserted, that is, the bottom of the reinforcement part using the top pile, is settled.

At this time, although a part of the lower end of the tubular body 110-1 is also inserted into the deep layer of the soft ground 200, the tubular body 110-1 is the plywood and the base concrete layer cured by pouring the concrete 210 ( By maintaining the fixed state by 230, the settlement is not made in conjunction with the subsidence of the soft ground 200 deep.

Therefore, the pipe body 110-1 at a time after a certain period has elapsed from the interval between the pipe body 110-1 reference piece 112-1 and the measurement piece 122 of the measuring rod 120 at the time of reinforcement construction. When the gap between the reference piece 112-1 and the measurement piece 122 of the measuring rod 120 is further narrowed, if the depth of the soft ground 200 is settled by the narrowed interval, the problem is identified and compensated for. do.

On the other hand, the interval between the tubular body 110-1 reference piece 112-1 and the measurement piece 122 of the measuring rod 120 at the time of reinforcement construction is the tubular body 110-1 when the fixed period elapses. If the same distance between the reference piece 112-1 and the measurement piece 122 of the measuring rod 120, the soft ground using a top pile to confirm that no deep settlement of the soft ground 200 was made ( 200) The excellence of reinforcement construction can be confirmed.

Here, the tubular body 110-1 at a time after a certain period has elapsed from the interval between the tubular body 110-1 reference piece 112-1 and the measuring piece 122 of the measuring rod 120 at the time of reinforcement construction. The gap between the reference piece 112-1 and the measurement piece 122 of the measurement rod 120 may be increased. In this case, the measurement rod 120 is intact and the tubular body 110-1 is formed. If you sit down.

In this case, although the deep settlement of the soft ground 200 did not occur, it may be determined that the reinforcement part and the ground surface which used the top pile were settled.

However, in the measurement structure according to the second embodiment of the present invention, a portion of the lower end of the tubular body 110-1 penetrates through the bottom of the pile part 104 of the top pile mold 100 and is inserted into the deep layer of the soft ground 200. When the reinforcement part and the ground surface are settled, it may be difficult to judge the exact settled part because it may not sit down exactly as it is settled by the supporting force of the lower part of the pipe body 110-1 inserted deeply. There will be.

Therefore, in reinforcing the soft ground 200 using the top pile, in order to measure the settlement of the ground surface including the reinforcement site, the measurement structure according to the first embodiment of the present invention is applied, and the reinforcement site In other words, in order to measure the deep settlement of the soft ground 200, it is preferable to apply the measurement structure according to the second embodiment of the present invention.

However, the deep settlement of the soft ground 200 may also be measured as the measurement structure according to the first embodiment of the present invention, and the soft ground 200 reinforcement using the top pile is also used as the measurement structure according to the second embodiment of the present invention. Of course, the settlement of the site and the surface can also be measured.

Accordingly, as shown in FIG. 12, the measurement structure according to the first embodiment of the present invention is applied to the top pile of a plurality of top piles, and the second embodiment of the present invention is applied to the top pile of another portion. It is also possible to simultaneously measure the settlement of the ground surface and the soft ground (200) deep by applying in combination, such as by applying a measurement structure according to.

In addition, the measurement structure according to the first and second embodiments of the present invention described above may be selectively provided in both the top pile mold 100 is installed in a plurality of alignment, the selected top pile mold at regular intervals It may be provided in several places in the (100).

For reference, in the exemplary embodiment of the present invention, the measurement structure is installed in the field-pouring top pile, and the measuring method is only described as an example. However, in the factory-made concrete top pile, the tubular body is embedded in the center. It can be applied, even in this case it will be clear that does not depart from the scope of the present invention.

1 is a cross-sectional view schematically showing a structure in which a soft ground is reinforced using a top pile in the related art.

Figure 2 is a perspective view showing a top pile mold applied to the soft ground reinforcement using the top pile according to the first embodiment of the present invention.

3 is a longitudinal cross-sectional view of FIG. 2;

Figure 4 is a perspective view of the state arranged to be arranged in a bundle on the soft ground using the top pile mold of FIG.

5 is a partial plan view in a state in which the foundation concrete layer is removed in the state of reinforcing the soft ground using the top pile mold of FIG.

6 is a view for showing the settlement measurement structure of the soft ground reinforcement using a top pile according to a first embodiment of the present invention, a cross-sectional view taken along line A-A of the state containing the base concrete layer in FIG.

7 is a perspective view showing a top pile mold applied to the soft ground reinforcement using the top pile according to the second embodiment of the present invention.

8 is a longitudinal cross-sectional view of FIG.

9 is a perspective view of the state arranged to be arranged in a bundle on the soft ground using the top pile mold of FIG.

FIG. 10 is a partial plan view in a state in which the foundation concrete layer is removed in a state in which the soft ground is reinforced using the top pile mold of FIG. 7; FIG.

FIG. 11 is a view illustrating a settlement measurement structure of a soft ground reinforcement part using a top pile according to a second embodiment of the present invention.

12 is a cross-sectional view showing a settlement measurement structure of the soft ground reinforcement using a top pile according to another embodiment of the present invention.

<Explanation of symbols on main parts of the drawings>

100: top pile mold 102: body

104: pile part 110,110-1: tube

112,112-1: Reference piece 120: Measuring rod

122: measurement piece 200: soft ground

210: concrete 220: crushed stone

230: foundation concrete layer

Claims (11)

A top pile form consisting of a body portion formed in the ordinary light narrowing form, and a pile portion extending from the bottom of the body portion; A tubular body which is installed to penetrate the body portion and the pile portion of the top pile mold and is extended to a predetermined length to an upper portion of the body portion; Settlement measurement structure of the soft ground reinforcement site using the top pile, characterized in that it comprises a measuring rod drawn into the deep layer of the soft ground through the tube. The method of claim 1, A reference piece bent in the horizontal direction is formed on one side of the upper end of the tube, and one end of the measuring rod is formed as a measuring piece bent in the horizontal direction, so that the reference piece and the measuring piece are configured to be equilibrated at a horizontal interval. Settlement measurement structure of soft ground reinforcement using top pile. The method according to claim 1 or 2, The top pile mold is installed on the soft ground in a state in which the plurality is aligned, the concrete is poured and cured in the interior, the space between the top pile mold is filled with crushed stone, the concrete to the top of the top pile mold The foundation concrete layer is formed to be laid, the settlement measurement structure of the soft ground reinforcement using a top pile, characterized in that the upper portion of the tube and the measuring rod protrudes to the upper portion of the basic concrete layer. In the method for measuring the settlement of the soft ground reinforcement using the top pile, (A) compacting the surface of the soft ground, consisting of a body portion and a pile portion, the step of installing in a state in which a plurality of top pile molds are installed through the tubular body to extend by a predetermined length to the upper portion of the body portion; (b) placing and curing concrete in the top pile mold; (c) filling and crushing the crushed stone in the space between the top pile molds; (d) depositing concrete on the top of the top mold to form a foundation concrete layer; (e) drawing a measuring rod from the top of the tube to the deeper ground of the soft ground; (f) measuring the interval between the upper end of the tube and the upper end of the measuring rod at regular intervals, and determining whether the top pile reinforcement part and the ground surface are settled by the change of the measured amount. Settlement measurement method of soft ground reinforcement using top pile. The method of claim 4, wherein One side of the upper end of the tubular body is formed of a reference piece bent in the horizontal direction, and the upper end of the measuring rod is also formed of a measurement piece bent in the horizontal direction so that the measurement piece and the reference piece are parallel to the horizontal direction at a predetermined interval. Settlement measurement method of the soft ground reinforcement using a top pile characterized in that it further comprises a step. A top pile form consisting of a body portion formed in the ordinary light narrowing form, and a pile portion extending from the bottom of the body portion; A tubular body which is installed to penetrate the body portion and the pile portion of the top pile form and extends by a predetermined length to an upper portion of the body portion, and is further extended by a predetermined length from the bottom of the pile portion; Settlement measurement structure of the soft ground reinforcement site using the top pile, characterized in that it comprises a measuring rod drawn into the deep layer of the soft ground through the tube. The method of claim 6, One end of the tubular body is formed of a reference piece bent in the horizontal direction, one end of the measuring rod is formed of a measuring piece bent in the horizontal direction, the reference piece and the measuring piece is configured to equilibrate at a horizontal interval Settlement measurement structure of the soft ground reinforcement part using the top pile. The method according to claim 6 or 7, The top pile mold is installed on the soft ground in a state in which the plurality is aligned, the concrete is poured and cured in the interior, the space between the top pile mold is filled with crushed stone, the concrete to the top of the top pile mold The foundation concrete layer is formed to be laid, the settlement measurement structure of the soft ground reinforcement using a top pile, characterized in that the upper portion of the tube and the measuring rod protrudes to the upper portion of the basic concrete layer. The method according to claim 6 or 7, Settlement measurement structure of the soft ground reinforcement site using the top pile, characterized in that the bottom of the pile portion of the top pile form, and the tube passing through the bottom is fixed by welding. In the method for measuring the settlement of the soft ground reinforcement using the top pile, (a) compacting the surface of the soft ground, consisting of a body portion and a pile portion, installed in a state in which a plurality of top pile molds installed through the tubular body are extended so as to extend a predetermined length to the upper portion of the body portion and the lower portion of the pile portion, respectively. Making; (b) placing and curing concrete in the top pile mold; (c) filling and crushing the crushed stone in the space between the top pile molds; (d) depositing concrete on the top of the top mold to form a foundation concrete layer; (e) drawing a measuring rod from the top of the tube to the deeper ground of the soft ground; (f) measuring the interval between the upper end of the tube and the upper end of the measuring rod at regular intervals, and determining whether the soft ground depth of the top pile reinforcement is subsided due to a change in the measured amount thereof. Settlement measurement method of soft ground reinforcement part using top pile. The method of claim 10, One side of the upper end of the tubular body is formed of a reference piece bent in the horizontal direction, and the upper end of the measuring rod is also formed of a measurement piece bent in the horizontal direction so that the measurement piece and the reference piece are parallel to the horizontal direction at a predetermined interval. Settlement measurement method of the soft ground reinforcement using a top pile characterized in that it further comprises a step.

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