KR101812071B1 - Integrated eco testing pipe for underground inclinometer and water level, and method for installing and closing the same - Google Patents

Abstract

The present invention relates to an integrated eco-friendly testing pipe for an underground inclinometer and a water level, and a method for installing and closing the same. According to the present invention, the eco-friendly testing pipe comprises: one or more main pipes arranged in a height direction; a second connection member installed to connect the main pipes; a filter unit connected to a lower side of the lowest main pipe with the second connection member as a medium; and a lower finishing cap in which a lower portion of the filter unit is mounted.

Description

TECHNICAL FIELD [0001] The present invention relates to a measurement tube for an integrated eco-friendly groundwater level gauge, an installation method thereof,

The present invention relates to a measuring pipe for measuring a ground slope and a groundwater level together, more particularly, to a measuring pipe provided in a perforation hole, and an in-ground inclinometer or an underground water level meter is installed in the measuring pipe, The present invention relates to a measuring pipe for an integrated eco-friendly groundwater level meter capable of measuring the groundwater level, a method of installing the same, and a method of closing the same.

In general, the underground inclinometer measures the position, direction, size, and velocity of the horizontal or vertical displacement of the ground caused by excavation, changes in toe pressure during excavation or excavation, and pore water pressure due to displacement of the groundwater This is a measuring instrument used to judge the safety degree of the ground relaxation tension area and the temporary structure by comparing with the displacement amount. In the case of the foundation construction such as an apartment or a high-rise building, when the earth pressure is removed at the time of front excavation of the excavation site installed on the ground, the earth pressure on the backside of the excavation is generally increased, In order to measure the change of underground slope, perforation and underground slope measuring pipe are buried at a certain interval and a certain depth around the construction site of the building. After that, a sensor type probe connected to the buried underground inclination measuring pipe is inserted, so that it is possible to measure whether or not the excavation process of the ground of the erosion front surface of the measurement site is deformed.

In addition, the underground water level meter measures changes in the underground water level of the ground in order to perform the basic work as described above. It determines whether the safety standards proposed for the prediction management according to the excavation depth are maintained at the water level applied to the design and whether sudden rise / It is an instrument to check the ground pore water pressure and soil pressure increase factor by comparing and measuring, and to check the influence condition on the excavation back surface by grasping the fluctuation and the state of ground water level due to excavation work. In order to measure the ground water level, firstly, a water level measuring pipe having a perforated pipe at the lower end is buried at a certain interval and a predetermined depth on the back side of the temporary earth retaining wall. Thereafter, a tape-shaped probe is inserted through a buried level gauge, and then the level at which the probe is touched can be measured.

However, in order to measure the underground slope and underground water level as described above, the underground water level meter and the underground water level meter are installed in perforated holes respectively in the ground. Therefore, the perforation and pipe installation work must be repeatedly performed. The surface water is attracted to the groundwater source through the buried, double-walled pipe, causing major pollution, and the cost is also excessively spent.

In addition, the conventional underground inclination measuring tube has a substantially cylindrical shape, and the lower surface is completely closed while the upper surface is detachably attached. Therefore, it is possible to measure the underground inclination by inserting the probe into the incline measuring pipe by opening the cap when measuring the inclination underground.

However, when the underground water penetrates into the ground perforation hole and is filled with a certain height, it is difficult to install it at a set depth since it is floated by buoyancy when the inclination measuring pipe is inserted. In addition, when the inclined measuring pipe is filled with water to overcome the buoyancy and installed only to a set depth with a strong external force, the probe is not guided to the front of the retention hall because the function of the inclined measuring pipe is lost due to deformation and breakage, It is possible to obtain information that is different from the purpose of necessity, such as being distorted and providing erroneous information. Also, even after the installation, there is a problem that the measuring tube rises up at some point due to the buoyancy which continuously acts on the tilt measuring tube, or the operator may be injured to the measuring tube protruding due to the strong buoyancy.

Korean Patent No. 10-1177459 (Announcement of August 27, 2012) Korean Patent No. 10-1219468 (Announcement of Nov. 11, 2013)

The object of the present invention, which is devised to solve the above problems, is to embed a single measuring pipe capable of using an underground water level meter together with an underground water level meter in one perforation hole and to allow groundwater to flow into the measuring pipe, In addition to the conventional construction of two measuring pipes and two perforation holes, it is possible to reduce the construction cost and the period of time, as well as to prevent groundwater contamination due to the surface water flowing into the two measuring pipes, And an object of the present invention is to provide an integrated eco-friendly groundwater level gauge tube which can reduce buried waste to suppress environmental pollution.

In order to attain the above-mentioned object, an integrated eco-friendly underground inclined water level measuring pipe according to the present invention comprises at least one main pipe arranged in a height direction; A second coupling member installed to connect the main pipes; A filter unit connected to a lower side of the lowermost main pipe through a second coupling member, and a lower finishing cap on which a lower portion of the filter unit is mounted.

Here, the filter unit may include a first filter installed on one end side and another end side on the second joint member and the lower finishing cap, and the other part being installed on the first filter, And a fourth filter mounted between the second filter and the main tube and inserted into the second coupling member.

The second filter has a mesh portion having a predetermined thickness and formed on or adhered to the upper surface and the lower surface of the second joint member so as to be inserted into the inner circumferential surface of the second joint member in the lateral and upward directions And a first fixing protrusion which is protruded.

In addition, one hollow or a plurality of filtering holes are formed between the mesh portions of the upper and lower surfaces, and the fourth filter is placed on the first fixing protrusions.

And the fourth filter has a second fixing protrusion having a predetermined thickness and being laterally projected on the circumferential outer surface so as to be fitted in the fitting hole of the second fitting member, a second fixing protrusion formed between the soild core and the rim, And a filtering hole.

On the other hand, the filter portion includes a third filter that is sandwiched between the first fixing protrusions on the mesh portion of the upper surface of the second filter, and a third filter that is mounted on the upper surface of the lower finishing cap, And a fixture.

Here, the third filter is a filter member or filter layer made of gauze, nonwoven fabric, cotton, sand, gravel and the like.

The fixture has a cylindrical insertion portion into which a part of the lower end side of the first filter is inserted, a fastening portion which is formed into a flange shape at the lower end of the insertion portion and a fastening portion which is formed on the inner circumferential surface of the fastening portion, And a fastening protrusion that is fitted in the fitting hole machined in the direction of the fastener.

The first filter may be a porous membrane filtration filter of hollow cylindrical shape, or may be a tube filter which is rigid and has a plurality of holes machined on its side surface, and a membrane filtration filter is incorporated in the tube filter.

The eco-friendly measuring pipe according to the present invention includes: a first joint member having a portion of an upper end side of the uppermost main pipe among the main pipes inserted into a lower portion; An upper tube cap mounted on a part of an upper end of the upper tube; As shown in FIG.

Here, the inner surface of the upper pipe or the main pipe is provided with four or six or eight or sixteen guide grooves formed in the inner surface of the circumference so as to guide the elevation of the probe for underground inclination or underground water level measurement, And at least one mounting protrusion protruding outwardly on the outer surface of the tube.

The inner circumferential surface of the first joint member and the second joint member is provided with a fitting hole that is formed to fit the mounting protrusion.

The upper tube and the first joint member are detachably mounted by riveting, bolting, or screwing. The main tube and the plurality of filters and the first and second joint members are bonded or fixed to each other, Rivet fastening, bolting fastening, or screw fastening.

The length of the upper tube is 1 ± 0.3m.

Meanwhile, in the method of installing the measuring pipe of the integrated eco-friendly submerged gradient water level gauge according to the present invention, in the method of installing the measuring pipe of the present invention described above, one perforation hole is drilled in the ground and a casing is inserted into the perforation hole Step S10 (S10); An eleventh step (S11) of inserting a measuring tube into the casing; A twelfth step (S12) of filling the sand (S1) at a predetermined height between the casing and the measuring pipe at the lowest depth of the perforation hole; A thirteenth step (S13) of raising the casing higher than the height of the solid bentonite (B) filled on the sand (S1) and filling solid bentonite with the predetermined height on the sand (S1); A fourteenth step (S14) of filling the solid bentonite with sand S2 at a predetermined height; And a fifteenth step (S15) of completely removing the casing from the perforation hole and grouting the cement mortar to the ground between the perforation hole and the measuring pipe.

In the tenth step S10, the perforation hole 100 is further drilled to a depth for measuring the ground inclination by a depth corresponding to the depth of the filter part for measuring the groundwater level and the lower finishing cap, The solid S1 is filled with 0.2 ± 0.1 m higher than the upper end of the filter unit or the solid bentonite is filled with 0.2 ± 0.1 m above the sand S1 in the 13th step S13, The sand (S2) is filled to a height of 0.2 ± 0.1 m.

Meanwhile, in the method of closing the measuring tube of the present invention, in the method of closing the measuring tube of the present invention, in the 20th step of filling the inside of the measuring tube with the sand S3 at a predetermined height from the floor S20); A twenty-first step S21 of filling cement milk at a predetermined height on the sand S3; A twenty-second step (S22) of filling the cement mortar with cement mortar; (S23) of backing up the cement mortar to the ground.

At this time, the upper pipe is removed in step 23 (S23), and the back pipe is returned.

In the 20th step S20, the sand S3 may be filled up to a depth of -2m ± 0.3m from the ground, or the cement milk may be filled up to a depth of -1.5 ± 0.3m in the 21st step (S21) (S22), the cement mortar is filled to -1 ± 0.3 m from the ground.

As described above, according to the present invention, when a measuring pipe is inserted into a perforation hole, clear groundwater or perforated water filtered by foreign matter is introduced through a filter portion having a plurality of filters at a lower portion thereof, It is possible to prevent the occurrence of a phenomenon such as a difficulty in loading up to a predetermined depth or a safety accident due to flooding due to buoyancy, thereby improving the workability.

In addition, since the underground water level meter and the underground water level meter use one measuring pipe and one perforation hole is required to burp the measuring pipe, the construction cost, period and material cost can be saved, Environmental pollution can also be reduced.

Also, since the number of the perforated holes is reduced, the pollution caused by the introduction of the surface water into the ground water is minimized, thereby protecting the environmental pollution and further the groundwater source.

Also, by applying a triple or quadruple filter, even if at least one filter including the first filter is frequently broken due to soil pressure and installation, it is filtered by another filter, It is possible to cut off the phenomenon of loss of the image quality.

Further, by processing 4, or at least 6, preferably 8, guide grooves for guiding the probe inserted into the measuring tube, it is possible to measure the change of the earth pressure to the same or similar degree in the conventional four directions, By measuring the earth pressure with respect to at least six directions, preferably eight directions, it is possible to measure the change of the earth pressure in more various directions.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate preferred embodiments of the invention and, together with the description, serve to further the understanding of the technical idea of the invention, Should not be interpreted.
FIG. 1 is a side view schematically showing a measuring pipe of an integrated eco-friendly ground slope water level gauge according to a preferred embodiment of the present invention.
Figure 2 is a perspective view schematically showing the upper tube or main tube and the coupling member of Figure 1;
3 is a side cross-sectional view showing the lower part of the integrated environmentally-ground inclined gauge measuring pipe shown in Fig.
4 is a perspective view of the fastener shown in Fig.
5 is a perspective view showing the second filter shown in Fig.
6 is a perspective view showing the fourth filter shown in Fig.
7A to 7C are perspective views showing an embodiment of the first filter shown in Fig.
8 is a flowchart schematically showing a method of embedding the integrated eco-friendly underground inclined gauge measuring pipe of FIG.
Figs. 9 to 11 are side cross-sectional views showing the embedding order of the integrated eco-friendly underground inclined gauge measuring pipe according to Fig.
Fig. 12 is a flowchart schematically showing the method of closing the integrated environmentally ground slope gauge measuring pipe shown in Fig. 8. Fig.
13 is a side cross-sectional view showing the state of the integrated eco-friendly underground inclined water level measuring pipe according to Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the detailed description of known functions and configurations incorporated herein will be omitted when it may unnecessarily obscure the subject matter of the present invention.

<Configuration>

As shown in FIG. 1, the measuring pipe 1000 of the integrated eco-friendly groundwater level gauge according to the preferred embodiment of the present invention includes an upper finishing cap 1100, an upper pipe 1200, a first connecting member 1300, A second coupling member 1500, a filter unit 1600, and a lower finishing cap 1700. The filter unit 1600 includes a filter unit 1600,

The upper finishing cap 1100 is a member for preventing foreign matter such as soil from flowing into the pipe. The upper finishing cap 1100 is a member which is mounted on the upper end of the upper pipe 1200 and closes the upper open face.

The upper pipe 1200 is a member which is removed when the measuring pipe 1000 is poured to a certain depth from the ground when the pipe 1000 is closed. The upper tube 1200 may be installed for the convenience of work in the closed operation, or may be omitted, and may have a length of about 1.0 ± 0.3 m. That is, the upper tube 1200 may be a tube having the same or similar function as the main tube 1400, and may be manufactured and installed separately from the main tube 1400 for convenience of the closed tube work. May be substituted for the upper tube 1200. The upper tube 1200 may be detachably mounted on the first joint member 1300 such that the upper finishing cap 1100 is detachably mounted on the upper portion and the lower portion thereof is easily removed. As shown in FIG. 2, the upper tube 1200 may include a plurality of guide grooves 1410 formed in the inner circumference of the cylinder in the height direction and a plurality of mounting protrusions 1420 formed in the circumferential outer surface in the height direction . The top tube 1200 may be of the same or similar shape as the main tube 1400.

Here, the guide groove 1410 includes an upper tube 1200 and a main tube 1400 and a first joint member (not shown) for guiding the probe when inserting a probe for measuring an underground gradient or a groundwater level into the tube 1300) and the second coupling member (1500). The guide groove 1410 can be machined to a depth at which the probe is inserted in the circumferential inner surface of the upper tube 1200 and the main tube 1400 in the height direction. Further, the guide groove 1410 is provided with a tilt sensor capable of measuring a tilt with respect to one or two directions, and when the probe is inserted with the tilt sensor, the spring roller is fitted and guides the movement path of the spring roller Home. The guide grooves 1410 may be formed at about 4 or more at regular intervals, for example, four or sixteen, preferably eight. When the guide grooves 1410 are machined into more than four conventional grooves 1410, the tilt of the ground is measured for at least six directions, or preferably eight directions, more than the conventional four directions, so that the direction in which the earth pressure is applied and the ground displacement Can be measured more precisely, and a more precise complementary measure can be taken based on this. In addition, the guide groove 1410 can be processed to be capable of measuring in various orientations including four directions or more, for example, four directions, eight directions, sixteen directions, and the like.

The mounting projection 1420 can also be machined for fastening the upper tube 1200 or the main tube 1400 and the first joint member 1300. The mounting protrusion 1420 may be machined to protrude from the circumferential outer surface of the upper tube 1200 and the main tube 1400 and may be machined to a position corresponding to the guide groove 1410, for example. The mounting projection 1420 of the upper tube 1200 or the main tube 1400 is fitted into a fitting groove (not shown) formed in the inner circumference of the first coupling member 1300 or the second coupling member 1500 .

As shown in FIGS. 1 and 2, the first joint member 1300 is a member fastened to connect the upper pipe 1200 and the main pipe 1400. The first joint member 1300 may have a fitting groove formed in the inner surface of the circumference so that the mounting protrusion 1420 of the upper tube 1200 and the mounting protrusion 1420 of the main tube 1400 are fitted in the height direction . Accordingly, the upper pipe 1200 and the upper portion of the main pipe 1400 can be inserted and fixed to one side and the other side of the first joint member 1300, respectively.

The main pipe 1400 is a member embedded in the ground and having a probe for measuring the ground slope or the ground water level inserted therein. Four or more guide grooves 1410 can be machined on the inner circumferential surface of the main pipe 1400 to measure the ground displacement of four directions or more and the first joint member 1300 or the second joint member 1500 A plurality of mounting protrusions 1420 can be machined on the circumferential outer surface. At least one main pipe 1400 may be installed according to the depth of the perforation hole 100 through the first coupling member 1300 or the second coupling member 1500.

The second coupling member 1500 is installed to connect the main pipes 1400 or the main pipe 1400 and the filter portion 1600. [ The second joint member 1500 has the same or similar shape as the first joint member 1300 that connects the upper pipe 1200 and the main pipe 1400. The second fitting member 1500 has a shape similar to that of the first fitting member 1300, The first fixing protrusions 1632 of the second filter 1630 and the second fixing protrusions 1651 of the fourth filter 1650 may be fitted into the circumferential inner surface so as to be fitted in the height direction. At this time, a part of the main pipe 1400 is fitted to one side of the second coupling member 1500, and the second filter 1630, the third filter 1640 and the fourth filter 1650 are inserted into the other side of the second coupling member 1500 Can be mounted.

Meanwhile, the upper tube 1200 and the main tube 1400 can be made of ABS (Arcylonitrile Butadiene styrene) to prevent the tube from being bent by the dynamic earth pressure as much as possible. Also, the first coupling member 1300 or the second coupling member 1500 may be made of ABS.

The filter unit 1600 includes a fixture 1610, a first filter 1620, a second filter 1630, a third filter 1640 and a fourth filter 1650, as shown in FIGS. 1 and 3 .

3 and 4, the fixture 1610 is a member fastened to the lower finishing cap 1700 so as to fix the lower end portion of the first filter 1620. The fixture 1610 may include a cylindrical insertion portion 1611 having a predetermined inner diameter and a fastening portion 1612 formed into a flange shape at one end of the insertion portion 1611. In addition, fastening protrusions 1613 can be machined on the side surfaces of the fastening portions 1612 at regular intervals. Accordingly, one side of the first filter 1620 is fixedly inserted into the inserting portion 1611 of the fixture 1610, and the fastening protrusion is formed on the side of the upper groove of the lower finishing cap 1700 at a predetermined interval It can be fitted and fixed in the machined fitting groove. In other words, the fixture 1610 can be fitted into the upper groove of the lower finishing cap 1700. This fixture 1610 may be omitted, and the lower end portion of the first filter 1620 may be directly fastened to the lower finishing cap 1700.

In addition, the first filter 1620 is a porous filter that filters the groundwater. The first filter 1620 may be cylindrical in shape, for example, the upper end portion may be fitted in the second coupling member 1500, and the lower end portion may be fitted in the fixing portion 1610. Accordingly, the first filter 1620 is exposed on the ground in a part between the second joint member 1500 and the fixture 1610, and the groundwater is introduced through the exposed portion to form the second joint member 1500 and / Or may be filled into the main tube 1400. In addition, the area of the underground exposed portion of the first filter 1620 can be adjusted according to the inflow time and amount of groundwater.

As shown in FIGS. 3 and 5, the second filter 1630 is a member for secondarily filtering the ground water passing through the first filter 1620. The second filter 1630 includes a mesh portion 1631 having a substantially cylindrical shape and having an upper surface and a lower surface substantially entirely or almost in the form of a mesh and a plurality of first fixing protrusions 1632 .

Here, the upper and lower mesh portions 1631 may be manufactured separately or may be integrally manufactured. Between the upper and lower mesh portions 1631, various types of holes that are the same as or similar to the filtering holes 1653 of the fourth filter 1650 can be machined. That is, the second filter 1630 may have the same or similar shape as the mesh portion 1631 formed on the upper and lower surfaces of the fourth filter 1650.

Further, the first fixing protrusions 1632 may protrude laterally from the outer circumferential surface and may be processed to protrude upward higher than the upper surface.

Accordingly, the second filter 1630 is inserted into the second joint member 1500, the lower surface thereof is in contact with the first filter 1620, and the fourth filter 1650 is placed on the first fixing protrusion 1632 .

And the third filter 1640 is a filter installed between the second filter 1630 and the fourth filter 1650. The third filter 1640 is disposed between the second filter 1630 and the fourth filter 1650 due to the first fixing protrusion 1632 on the side surface in the state where the second filter 1630 and the fourth filter 1650 are installed. As shown in Fig. At this time, the third filter 1640 may be installed between the first fixing protrusions 1632 while being mounted on the upper surface mesh portion 1631 of the second filter 1630. The third filter 1640 may be a filter member made of gauze, nonwoven fabric, cotton, sand, gravel, etc., or a filter layer.

Meanwhile, the fourth filter 1650 is a filter placed on the first fixing protrusion 1632 of the second filter 1630 as shown in FIGS. 3 and 6. The fourth filter 1650 has a substantially circular shape and includes a plurality of second fixing protrusions 1651 that are projected laterally on the outer circumferential surface of the circumference and fit into the fitting hole formed in the inner surface of the second coupling member 1500, And a filtering hole 1653 formed by machining a plurality of holes between the solid portion 1652 and the rim portion 1654. Here, the solid portion 1652 can be excluded from the filtering hole 1653 in order to strengthen the external impact. That is, the solid portion 1652 is inserted into the main pipe 1100 to measure the ground gradient or the ground water level, and is provided to withstand the impact when the falling probe arrives. At this time, in the absence of the solid portion 1652, when the probe reaches the bottom, it can not absorb the shock while supporting the probe, so that the measuring sensor mounted on the probe may be damaged, and the measuring instrument may cause a failure or an error signal. The solid portion 1652 can prevent such a phenomenon. The fourth filter 1650 may be mounted on the first fixing protrusion 1632 of the second filter 1630 and may be installed on the upper surface of the main pipe 1400. For example, in order to withstand the impact when the probe (for example, a stainless steel rod) for measuring the in-ground inclination is dropped at a high speed in the solid portion 1652, the fourth filter 1650 is made of steel, stainless steel, Or plastic.

The lower finishing cap 1700 is a member disposed at the lower end of the measuring pipe 1000. The lower closure cap 1700 may have a substantially cylindrical shape on a side surface and may have an inverted conical shape to facilitate insertion into the perforation hole 100. Here, the lower finishing cap 1700 is preferably an inverted conical shape. This is because the slime is accumulated in the lower part of the perforation hole 100 after the perforation, and the slurry is prevented from being shaken and deflected even during the subsequent operation since the lower finishing cap 1700 is pierced and firmly embedded. The upper surface of the lower closure cap 1700 is provided with a groove into which the fixture 1610 is inserted and a plurality of fitting holes 1610 are formed in the inner side surface of the groove to receive the fastening protrusion 1613 formed on the side surface of the fixture 1610 Can be processed.

<Assembly>

Hereinafter, an assembled structure of the integrated eco-friendly groundwater gauge measuring pipe 1000 according to the present invention will be briefly described.

As shown in FIGS. 1 and 3, the integrated eco-index gauge gauge measuring pipe 1000 according to the present invention is first inserted and fixed in the upper surface groove of the lower finishing cap 1700 with a fixture 1610 inserted therein.

Next, as shown in FIG. 7A, a portion of the lower end side of the first filter 1620 is fitted and fixed to the fixture 1610.

Next, a part of the top side of the first filter 1620 is fitted to the lower part of the second coupling member 1500, and the second filter 1630 is placed on the top surface of the first filter 1620. The third filter 1640 is sandwiched between the first fixing protrusions 1632 of the second filter 1630 and the upper surface mesh portion 1631 and the fourth filter 1650 is mounted on the upper surfaces of the first fixing protrusions 1631. [ . At this time, the third filter 1640 may be omitted.

Next, a part of the lower end of the fourth filter 1650 is fitted on the upper part of the second coupling member 1500, and the lower face is placed on the upper surface of the fourth filter 1650.

The second joint member 1500 is provided on the upper portion of the side of the main pipe 1400 and the upper portion of the first filter 1620 on the lower portion of the main pipe 1400, A third filter 1640 and a second filter 1630 are arranged downwardly between the first filter 1620 and the second filter 1620.

Next, when a plurality of main pipes 1400 are installed, the main pipes 1400 are connected to each other by the second coupling member 1500 or the first coupling member 1300.

Next, a part of the upper end side of the main pipe 1400 at the uppermost position is fitted to the lower part of the first connecting member 1300, and a lower end side part of the upper pipe 1200 is connected to the upper part of the first connecting member 1300 And the stomach is detachably mounted.

Finally, an upper finishing cap 1100 is mounted on a part of the upper end side of the upper tube 1200.

It will be appreciated that the above-described assembling sequence can be changed as needed. Also, the third filter 1640 may be omitted. As described above, sand, fine sand, silt, clay, mud, etc. are introduced through the triple or quadruple filter to prevent the measurement tube 1000 from being clogged sufficiently.

The upper tube 1200 and the main tube 1400 and the first and second joint members 1300 and 1500 may be fitted in the fitting protrusion 1420 and the fitting hole as described above, The mounting protrusion 1420 and the fitting hole may be fastened by direct bonding, riveting, bolting, or screw fastening without being processed. Of course, the mounting protrusion 1420 and the fitting hole may be fitted in a state of bonding, rivet fastening, bolting fastening, or screw fastening.

<Examples>

7A, the first filter 1620 may be a filter having a substantially cylindrical shape and a porous membrane filtering filter 1621, and a portion of the upper side and a portion of the lower side may be respectively connected to the second joint member 1500 and the fixture 1610, respectively.

In addition, the first filter 1620 may be a tube filter 1622 which is hard and has a plurality of holes 1623 formed in its side surface as shown in FIG. 7B, and a portion on the upper side and a portion on the lower side may be formed as a second joint member 1500 and the fixture 1610. [0064]

Meanwhile, as shown in FIG. 7C, the membrane filtration filter 1621 may be installed in the tube filter 1622. As a result, the durability against external pressure and external impact can be enhanced or the filtering function can be improved as compared with the case where they are respectively installed.

<Installation and closed work>

Hereinafter, a method of installing and closing the integrated eco-friendly underground inclined gauge measuring pipe 1000 according to the present invention will be described with reference to FIGS. 8 to 13. FIG.

9, the perforation hole 100 is drilled in the ground, and the casing 200 is inserted (S10). At this time, the eco-friendly measuring pipe 1000 of the present invention uses the ground inclination meter and the groundwater level as well, so that one perforation hole 100 can be drilled. Here, the perforation hole 100 is drilled approximately 1 to 2 m deeper than the depth for embedding a conventional measuring instrument for an in-ground inclinometer. This is because the integrated eco-friendly groundwater gauge measuring pipe 1000 of the present invention has a structure in which an upper pipe 1200 for measuring the underground inclination and a filter unit 1600 for measuring the groundwater level are connected to the lower side of the main pipe 1400 The filter portion 1600 and the lower finishing cap 1700 are located. For example, if the depth of the upper tube 1200 and the main tube 1400 is 10 m for the in-ground inclination, the filter portion 1600 and the lower finishing cap 1700 may be drilled deeper by 1 to 2 m, 11 ~ 12m can be drilled. The casing 200 may be inserted into the perforated hole 100 so as to contact the inner wall of the perforated hole 100.

Next, the measuring tube 1000 is inserted into the casing 200 (S11). At this time, a space may be provided between the casing 200 and the measuring pipe 1000 to fill sand (S1, S2) or bentonite (B) to help groundwater inflow or shock mitigation.

Next, a space between the casing 200 and the measuring pipe 1000 is filled with the sand S1 at a minimum depth of the perforation hole 100 at a predetermined height (S12). At this time, the sand S1 can be approximately 0.2 ± 0.1 m higher than the filter portion 1600. For example, the sand S1 may fill about 0.2. + -. 0.1 m higher than the top exposed to the outside of the first filter 1620, cover or partially fill the second joint member 1500 have.

Next, as shown in FIG. 10, the casing 200 is raised to a predetermined height, and the solid bentonite B is filled in the sand S1 at a predetermined height (S13). For example, the solid bentonite (B) can be filled with a height of approximately 0.2 0.1 m. At this time, the casing 200 can be raised higher than the height at which the solid bentonite B is filled. This is to prevent the solid bentonite B from rising because it can be lifted with the solid bentonite B together with the casing 200 when the solidified bentonite B is filled and then the casing 200 is lifted.

Next, the solid bentonite (B) is filled with the sand (S2) at a predetermined height (S14). The sand (S2) at this time may be sand having a rougher grain size than sand filled at the lowest depth, or may be the same sand. At this time, the sand S2 can be filled with a height of approximately 0.2 ± 0.1 m.

Finally, the casing 200 is completely removed as shown in FIG. 11, and the cement mortar M2 is grouted between the perforation hole 100 and the measuring pipe 1000 (S15). At this time, the cement mortar M2 can fill up to the ground.

Thus, the measuring tube 1000 can be installed in the ground.

Thereafter, an initial value can be set by inserting a probe for measuring the ground slope or groundwater level into the measuring pipe 1000. In addition, once the initial value is set, the ground slope and groundwater level can be repeatedly measured whenever necessary.

On the other hand, when the foundation work and the construction work of the building requiring the measurement of the ground slope and the ground water level are completed, the installed measuring pipe 1000 should be closed. At this time, the closed hole may mean that the measuring tube 1000 is filled with an environmentally friendly substance.

For this, as shown in FIGS. 12 and 13, the sand S3 is filled in the measuring pipe 1000 at a predetermined height from the floor (S20). The sand (S3) at this time may be sand of the same or similar particles as the above-described sand (S1, S2), or sand of finer particles. This sand S3 can, for example, fill up to a depth of about -2.0 ± 0.3 m from the ground, near the ground, from the ground.

Next, the cement milk M1 is filled on the sand S3 at a predetermined height (S21). The cement milk (M1) at this time can be filled up to a depth of about -1.5 ± 0.3 m from the top of the sand (S3), for example.

Next, the cement mortar M2 is filled on the cement milk M1 at a predetermined height (S22). At this time, the cement mortar (M2) can be filled up to a depth of about -1.0 ± 0.3 m from the cement milk, for example.

Finally, the measuring tube 1000 is removed from the ground to approximately -1.0 ± 0.3 m, and the backing C is performed (S23). In order to dispose of the measuring pipe 1000, the measuring pipe 1000 should be removed from the ground by the enforcement ordinance of the groundwater method to about -1.0 m, and then the back pipe C should be performed. At this time, in the present invention, the upper tube 1200 of approximately 1 0.3 m can be removed from the first joint member 1300. If the upper pipe 1200 is not provided, the main pipe 1400 can be cut to -1.0 0.3 m from the ground. In this way, a part of the upper end side of the measuring tube 1000 can be removed, and then the back-up (C) can be performed.

As described above, those skilled in the art will appreciate that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It is therefore to be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive. The scope of the present invention is defined by the appended claims, rather than the detailed description, and all changes or modifications derived from the meaning and scope of the claims and equivalents of the claims are to be construed as being included within the scope of the present invention do.

100: Perforation hole 200: Casing
1000: measuring tube 1100: upper finishing cap
1200: upper tube 1300: first coupling member
1400: Main pipe 1500: Second coupling member
1600: Filter part 1610: Fixture
1611: insertion portion 1612:
1613: fastening protrusion 1620: first filter
1630: second filter 1631: first fixing projection
1640: third filter 1650: fourth filter
1651: second fixing protrusion 1652:
1653: Filtering hole 1654:
1700: Lower finishing cap
S1, S2, S3: Sand
B: Solid bentonite
C: Back up.

Claims (13)

delete At least one main pipe (1400) arranged in a height direction;
A second coupling member 1500 installed to connect the main pipes 1400;
A filter unit 1600 connected to the lower main pipe 1400 via the second coupling member 1500,
And a lower finishing cap 1700 on which the lower portion of the filter unit 1600 is mounted,
The filter unit 1600 includes:
A first filter 1620 having one end side portion and the other end side portion mounted on the second joint member 1500 and the lower finishing cap 1700 and the other portion exposed to the ground,
A mesh part 1631 mounted on the first and second filters 1620 and inserted into the second coupling part 1500 and having a predetermined thickness and formed or attached to the upper and lower surfaces thereof, A second filter 1630 having a first fixing protrusion 1632 protruded laterally and upwardly on the outer surface of the circumference so as to be fitted in the fitting hole machined in the height direction,
And a fourth filter (1650) mounted between the second filter (1630) and the main pipe (1400) and installed to be inserted into the second coupling member (1500).
3. The method of claim 2,
One hollow or a plurality of filtering holes are formed between the mesh portions 1631 of the upper surface and the lower surface,
And a fourth filter (1650) is placed on the first fixing protrusion (1632).
3. The method of claim 2,
The fourth filter 1650 includes a second fixing protrusion 1651 having a predetermined thickness and being laterally protruded on the outer surface of the circumference so as to be fitted into the fitting hole of the second coupling member 1500, And at least one filtering hole (1653) machined between the first portion (1654) and the second portion (1654).
3. The method of claim 2,
The filter unit 1600 includes a third filter 1640 that is sandwiched between the first fixing protrusions 1632 on the mesh portion 1631 on the upper surface of the second filter 1630, Further comprising at least one of fasteners (1610) fastened on a part of the lower end and mounted in a groove machined on the upper surface of the lower finishing cap (1700)
The third filter 1640 may be a filter member or a filter layer including gauze, nonwoven fabric, cotton, sand, gravel, etc.,
The fixture 1610 includes a cylindrical insertion portion 1611 in which a part of the lower end of the first filter 1620 is inserted, a coupling portion 1612 formed in a flange shape at the lower end of the insertion portion 1611, And a fastening protrusion (1613) protruding from an outer circumferential surface of the cylindrical portion (1612) and fitted in a fitting hole machined in a height direction on an inner surface of the groove of the lower finishing cap (1700).
3. The method of claim 2,
The first filter 1620 may be a porous membrane filtration filter 161 which is hollow cylindrical or a tube filter 1622 which is hard and has a plurality of holes 1623 formed on the side thereof,
Wherein the filter is a filter having a membrane filtration filter (1610) built in the tube filter (1622).
3. The method of claim 2,
A first joint member 1300 to which a part of an upper end side of the uppermost main pipe 1400 among the main pipes 1400 is mounted,
An upper tube 1200 on which a lower end portion is mounted on an upper portion of the first joint member 1300,
An upper finishing cap 1100 mounted on a part of the upper end side of the upper pipe 1200; And the at least one of the atmospheric pressure and the atmospheric pressure.
8. The method of claim 7,
The inner surface of the upper pipe 1200 or the main pipe 1400 is provided with four or six or eight or sixteen guide grooves formed in the inner circumferential surface of the circumference so as to guide the elevation of the probe for underground inclination or underground water level measurement, And at least one mounting protrusion 1420 protruding outward from the outer surface of the upper tube 1200 or the main tube 1400,
The inner circumferential surface of the first and second joint members 1300 and 1500 may have a fitting hole formed therein for fitting the mounting protrusion 1420,
The first joint member 1300 or the second joint member 1500 of the upper pipe 1200 or the main pipe 1400 is fixedly or detachably fastened by bonding, riveting, bolting, The measurement tube of the integrated type eco-slope water level meter.
8. The method of claim 7,
The length of the upper pipe (1200) is designed to be 1 ± 0.3 m.
A method for installing the measuring tube (1000) according to any one of claims 2 to 9,
A tenth step (S10) of drilling one perforation hole (100) in the ground and inserting the casing (200) into the perforation hole (100);
An eleventh step (S11) of inserting the measuring tube (1000) into the casing (200);
A twelfth step (S12) of filling the sand (S1) at a predetermined height between the casing (200) and the measuring pipe (1000) at the lowest depth of the perforation hole (100);
A thirteenth step (S13) of raising the casing (200) higher than the height of the solid bentonite (B) filled on the sand (S1) and filling solid bentonite (B) on the sand (S1) at a constant height;
A fourteenth step (S14) of filling the solid bentonite (B) with sand (S2) at a predetermined height;
And a fifteenth step (S15) of completely removing the casing (200) from the perforation hole (100) and grouting the cement mortar to the ground between the perforation hole (100) and the measuring pipe (1000) Method of installation of the measuring pipe of the integrated eco - slope water level meter.
11. The method of claim 10,
In the tenth step S10, the perforation hole 100 is further pierced by a depth at which the filter portion 1600 and the lower finishing cap 1700 for measuring the groundwater level are buried at the depth for measuring the ground inclination,
In the twelfth step (S12), the sand S1 is filled with 0.2 ± 0.1 m higher than the upper end of the filter unit 1600,
In the thirteenth step (S13), the solid bentonite (B) is filled to 0.2 ± 0.1 m above the sand (S1)
In the thirteenth step S13, the casing 200 is raised to a height of 0.3 ± 0.3 m above the sand S1,
Wherein the sand (S2) is filled to a height of 0.2 ± 0.1 m in the 14th step (S14).
A method for closing a measuring tube (1000) according to any one of claims 7 to 9,
20th step S20 of filling the inside of the measuring pipe 1000 with the sand S3 at a predetermined height from the bottom;
A twenty-first step S21 of filling cement milk M1 at a predetermined height on the sand S3;
A twenty-second step S22 of filling the cement mortar M2 with the cement milk M1;
(S23) of backing up the cement mortar (M2) to the ground surface (C)
Wherein the upper pipe (1200) is removed in the step 23 (S23), and the backflow (C) is performed in the 23rd step (S23).
The method of claim 12,
In the 20th step S20, the sand S3 is filled up to a depth of -2.0m ± 0.3m from the ground,
In the 21st step S21, the cement milk M1 is filled up to a depth of -1.5 ± 0.3 m from the ground,
Wherein the cement mortar (M2) is filled up to -1.0 占 0.3 m from the ground in the 22nd step (S22).

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