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KR-102961193-B1 - In-situ Ground Settlement and Displacement Measuring Device and Construction Method Thereof

KR102961193B1KR 102961193 B1KR102961193 B1KR 102961193B1KR-102961193-B1

Abstract

The present invention is a ground settlement and displacement measuring device for measuring ground settlement and displacement or water pressure, which is installed by excavating and inserting into the original ground outside the wall of a bore hole formed in the ground, and comprises a measuring tube and a pair of excavation blades installed on both sides of the measuring tube, wherein a measuring sensor is installed in the measuring tube or the excavation blades, and the excavation blades include an upper blade pointed outwardly and a lower blade pointed outwardly. When the measuring tube rotates, the upper blade or the lower blade of the excavation blades excavates the wall of the bore hole and is inserted into the undisturbed original ground, thereby enabling the measurement of ground settlement and displacement or water pressure outside the wall of the bore hole without being affected by deformation of the bore hole itself or flow or loss of the filling material filled inside the bore hole. According to the present invention, a bore hole is constructed and the measuring device of the present invention is installed using the space within the bore hole, by excavating and inserting the original ground outside the wall of the bore hole and installing it on the undisturbed original ground, thereby allowing the settlement and displacement amount, water pressure, etc. of the original ground to be measured without being affected by the inside of the bore hole.

Inventors

  • 이홍규
  • 김영묵
  • 전병추

Assignees

  • 주식회사 동해종합기술공사
  • 지오엔지니어링(주)

Dates

Publication Date
20260507
Application Date
20250924

Claims (10)

  1. It is installed by excavating and inserting into the original ground outside the wall of a bore hole formed in the ground to measure ground settlement, displacement, or water pressure, and includes a measuring pipe and a pair of excavation wings installed on both sides of the measuring pipe. A measuring sensor is installed on the above measuring pipe or excavation wing, and The above-mentioned excavation wing includes an upper wing pointed outwardly at the upper side and a lower wing pointed outwardly at the lower side, and When the above measuring tube rotates, the upper or lower wing of the excavation wing is inserted while excavating the wall of the bore hole and installed in the undisturbed original ground, thereby allowing the settlement, displacement, and water pressure of the original ground outside the wall of the bore hole to be measured without being affected by deformation of the bore hole itself or flow or loss of the filling material filled inside the bore hole. It includes a binding member that fixes the pair of excavation wings to the measuring pipe, and an elastic member installed on the upper wing or lower wing of the pair of excavation wings to elastically tension the upper wing or lower wing to each other, and by the elastic member tensioning the upper wing or lower wing to each other and narrowing the gap, the lower wing or upper wing is inserted and installed in the original ground outside the wall of the bore hole while excavating the wall of the bore hole. The upper wing on the upper side of the binding member or the lower wing on the lower side of the binding member includes a wedge space provided between the measuring tube and the upper wing, which enables the excavation wing to rotate by means of the elastic member. Original ground settlement and displacement measuring device.
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  3. In claim 1, The device further includes a wheel installed at the end of the lower wing or the upper wing, which is the side of the upper wing or lower wing of the excavation wing where the elastic member is not installed, characterized by descending well along the casing. Original ground settlement and displacement measuring device.
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  5. In claim 1, It further includes a rotary lead coupled to the upper side of the measuring tube and inserted into the drilled hole, and The above measuring tube includes a pair of pin wings protruding to both sides, and The above-described rotary lead includes a pin insertion portion open to the lower side, and the pin insertion portion is L-shaped and is characterized by having a wide lower side. Original ground settlement and displacement measuring device.
  6. Step of forming a bore hole in the ground; The method includes the step of installing a ground settlement and displacement measuring device at a design location within the above-mentioned borehole; The above-mentioned ground settlement and displacement measuring device comprises a measuring section and a pair of excavation wings, and A measuring sensor is installed on the above measuring pipe or excavation wing, and The above-mentioned excavation blade includes an upper blade pointed outwardly and a lower blade pointed outwardly, and when the measuring tube rotates, the upper blade or the lower blade of the excavation blade is inserted while excavating the wall of the bore hole and installed in the undisturbed original ground, thereby allowing the settlement, displacement, or water pressure of the original ground outside the wall of the bore hole to be measured without being affected by deformation of the bore hole itself or by the flow or loss of the filling material filled inside the bore hole. It includes a binding member that fixes the pair of excavation wings to the measuring pipe, and an elastic member installed on the upper wing or lower wing of the pair of excavation wings to elastically tension the upper wing or lower wing to each other, and by the elastic member elastically tensioning the upper wing or lower wing to each other and narrowing the gap, the lower wing or upper wing is inserted and installed in the original ground outside the wall of the bore hole while excavating the wall of the bore hole. The upper wing on the upper side of the binding member or the lower wing on the lower side of the binding member includes a wedge space provided between the measuring tube and the upper wing, which enables the excavation wing to rotate by means of the elastic member. Construction method for original ground settlement and displacement measuring device.
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  8. In claim 6, The device further includes a wheel installed at the end of the lower wing or the upper wing, which is the side of the upper wing or lower wing of the excavation wing where the elastic member is not installed, characterized by descending well along the casing. Construction method for original ground settlement and displacement measuring device.
  9. delete
  10. In claim 6, It further includes a rotary lead coupled to the upper side of the measuring tube and inserted into the drilled hole, and The above measuring tube includes a pair of pin wings protruding to both sides, and The above-described rotary lead includes a pin insertion portion open to the lower side, and the pin insertion portion is L-shaped and is characterized by having a wide lower side. Construction method for original ground settlement and displacement measuring device.

Description

In-situ Ground Settlement and Displacement Measuring Device and Construction Method Thereof The present invention relates to a device for measuring settlement and displacement of the original ground and a method for constructing the same. Specifically, the invention relates to a device for measuring settlement and displacement of the original ground and a method for constructing the same, wherein a hole is drilled to a depth required for measurement to measure settlement, displacement, water pressure, etc. within the ground, and a measuring device is inserted and installed in the original ground outside the wall of the drilled hole to measure settlement, displacement, water pressure, etc. of the undisturbed original ground. A commonly used method for measuring ground settlement and displacement involves forming a borehole in the ground, installing a measuring device at the required depth, and then placing a pipe, rod, or rope between the measuring device and the ground, with the change in distance between the ground and the measuring device considered as the settlement and displacement of the original ground. However, with the above measurement method, the area around the borehole may be disturbed to some extent during drilling, the borehole wall may collapse when the casing is removed after the measurement device is installed, and the filling material, such as soil, inside the borehole may flow out or be lost due to groundwater, so the ground conditions inside the borehole may differ from the conditions of the original ground. Therefore, if the measuring device is located inside the borehole, the measurement results are also affected by various ground conditions inside the borehole, and consequently, there may be limitations in determining the settlement and displacement of the original ground from the measurement results. Therefore, the development of technology capable of solving the aforementioned problems is required. FIG. 1 is a drawing showing the insertion of a ground settlement and displacement measuring device according to an example of the present invention into a lower bore hole through a casing (an elastic member installed on the upper wing yes) FIG. 2 is a drawing showing the original ground settlement and displacement measuring device according to an example of the present invention being lowered to the lower side of the casing and then rotated to be inserted and installed in the original ground outside the wall of the bore hole (an example in which an elastic member is installed on the upper wing). FIG. 3 is a perspective view of a ground settlement and displacement measuring device according to an example of the present invention. FIG. 4 is a drawing showing the insertion of a ground settlement and displacement measuring device according to an example of the present invention into a lower bore hole through a casing (an example in which an elastic member is installed on the lower wing). FIG. 5 is a drawing showing the original ground settlement and displacement measuring device according to an example of the present invention being lowered to the lower side of the casing and then rotated to be inserted and installed in the original ground outside the wall of the bore hole (an example in which an elastic member is installed on the lower wing). Further objects, features, and advantages of the present invention can be more clearly understood from the following detailed description and the accompanying drawings. Before providing a detailed description of the present invention, it should be understood that the present invention is capable of various modifications and may have various embodiments, and that the examples described below and illustrated in the drawings are not intended to limit the present invention to specific embodiments, but rather include all modifications, equivalents, and substitutions that fall within the spirit and scope of the present invention. Where it is stated that a component is "connected," "combined," or "joined" to another component, it should be understood that while the component may be directly connected or joined to the other component, another component may exist between each component. The terms used in this specification are used merely to describe specific embodiments and are not intended to limit the invention; singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, terms such as “comprising” or “having” are intended to indicate the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not excluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof. Additionally, terms such as "...part," "...unit," and "...module" described in the specification refer to a unit that processes at least one function or operation, and this may