CN209958321U - Measuring device for landslide or rock mass deformation in construction excavation - Google Patents
Measuring device for landslide or rock mass deformation in construction excavation Download PDFInfo
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- CN209958321U CN209958321U CN201920328035.6U CN201920328035U CN209958321U CN 209958321 U CN209958321 U CN 209958321U CN 201920328035 U CN201920328035 U CN 201920328035U CN 209958321 U CN209958321 U CN 209958321U
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Abstract
The utility model discloses a measuring device that landslide or rock mass warp in construction excavation relates to a measuring device. It comprises a measuring needle and a graduated scale; the measuring pin is positioned at the upper rock mass of the sliding mass or the outward-inclined structural plane, and the graduated scale is positioned at the lower rock mass of the sliding bed or the outward-inclined structural plane; the head part of the graduated scale is a graduated scale, and the tail part of the graduated scale is horizontally inserted into a rock mass at the lower part of the sliding bed or the outward-inclined structural plane; the head part of the measuring needle is a pointer, the pointer is vertically arranged, the downward length of the pointer exceeds the dial, and the tail part of the measuring needle is horizontally inserted into the landslide body or the rock mass on the upper part of the outward-inclined structural plane. The utility model discloses can know the landslide body or the deformation condition of camber structural plane upper portion rock mass behind the front edge foot-cutting fast, equipment preparation is convenient, and the installation is comparatively simple, and the method is feasible, practical.
Description
Technical Field
The utility model relates to a measuring device, more specifically say that it is a measuring device that landslide or rock mass warp in construction excavation.
Background
During the side slope engineering construction excavation process of the industries such as water conservancy and hydropower, municipal administration, traffic, electric power and the like, geological conditions such as front edge cutting feet of a landslide and rock slope unfavorable structural surface combined blocks are often encountered, the deformation tendency of the front edge cutting feet of the landslide along the sliding surface and the rear edge sliding surface of the unfavorable structural surface combined blocks along the outward-inclined structural surface and other geological structure types needs to be mastered in time, and the occurrence of geological disasters such as landslide and collapse is avoided at the first time.
At present, deformation monitoring is generally adopted at home and abroad aiming at landslide or rock deformation, and has the characteristics of periodic repeated measurement, high precision, comprehensive application of various measurement technologies, emphasis on researching potential change of a monitoring network and the like, but the deformation monitoring also has the defects of long early-stage arrangement time, inconvenience in arrangement, relatively high cost and the like. Deformation monitoring work with high precision is not needed in the actual construction process of slope engineering, and only whether a lower slope has a deformation trend or not needs to be known so as to take engineering treatment measures in time.
Therefore, it is necessary to develop a measuring device for landslide or rock mass deformation in construction and excavation, which has a simple structure and is convenient to operate and meets the actual requirements of engineering.
Disclosure of Invention
The utility model aims at overcoming the weak point of above-mentioned background art, and provide a measuring device that landslide or rock mass warp in the construction excavation.
In order to realize the purpose, the technical scheme of the utility model is that: measuring device that landslide or rock mass warp in construction excavation, its characterized in that: comprises a measuring probe and a graduated scale arranged in parallel with the measuring probe;
the measuring needle is positioned at the upper rock mass of the sliding mass or the outward-inclined structural plane, and the graduated scale is positioned at the lower rock mass of the sliding bed or the outward-inclined structural plane;
the head part of the graduated scale is a graduated scale, and the tail part of the graduated scale is horizontally inserted into a rock mass at the lower part of the sliding bed or the outward-inclined structural plane;
the head of the measuring needle is a pointer, the pointer is vertically arranged, the downward length of the pointer crosses the dial, and the tail of the measuring needle is horizontally inserted into the landslide body or the rock mass on the upper part of the outward-inclined structural plane.
In the technical scheme, the tail part of the measuring pin is horizontally inserted into the upper rock mass of the landslide body or the camber structural plane by the length L1Length L of scale tail horizontally inserted into sliding bed or rock mass below camber structural plane2＝L1。
In the above technical scheme, the height h between the measuring needle and the bottom of the sliding belt or the camber structural surface1Horizontally inserted into the upper part of the landslide body or the camber structural surface together with the tail part of the measuring probeLength L in rock mass1The relationship between them is:
wherein a is the terrain gradient of an adjacent empty slope at the landslide or rock mass deformation shear outlet, and b is the inclination angle of a sliding belt or an outward-inclined structural plane;
the height between the measuring needle and the graduated scale is h2Height h from the measuring needle to the bottom of the slide belt or the camber structural surface1The relationship of (1) is:
h2＝h1+10cm
in the technical scheme, the inner diameter of the pointer is 2 mm; the dial layout length is 15cm, and the precision is millimeter level.
In the technical scheme, a first hole is formed in the upper rock body of the landslide body or the camber structural plane, and the tail of the measuring pin is horizontally inserted into the first hole; and a second hole is formed in the rock mass at the lower part of the sliding bed or the outward-inclined structural plane, and the tail part of the graduated scale is horizontally inserted into the second hole.
In the above technical solution, the pointer is distant from the length L of the first hole opening4Length L from dial to second bore orifice3The relationship between them is:
wherein L is3Taking the distance between 10 and 20 cm.
In the technical scheme, the first hole and the second hole are horizontal holes with the diameters of 30-50 mm.
The utility model discloses measure the displacement data of pointer on the calibrated scale, know the landslide body or the deformation trend of camber structural plane upper portion rock mass, take precautions against geological disasters such as landslide, collapse for the side slope engineering and provide the technical basis. The utility model discloses can know the landslide body or the deformation condition of camber structural plane upper portion rock mass behind the front edge foot-cutting fast, equipment preparation is convenient, and the installation is comparatively simple, and the method is feasible, practical.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic size diagram of the present invention.
Fig. 3 is a schematic view of the angle of the present invention.
Fig. 4 is the change curve of the upper rock mass of the landslide body or the camber structural plane along the sliding surface in the practical use of the utility model.
In the figure, 1-measuring needle, 11-pointer, 2-graduated scale, 21-graduated scale, 31-upper rock mass of landslide mass or camber structural plane, 311-first hole, 32-sliding strip or camber structural plane, 33-lower rock mass of sliding bed or camber structural plane, 331-second hole.
Detailed Description
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings, which are not intended to limit the present invention, but are merely exemplary. While the advantages of the invention will be apparent and readily appreciated by the description.
With reference to the accompanying drawings: a measuring device for landslide or rock mass deformation in construction excavation comprises a measuring pin 1 and a graduated scale 2 arranged in parallel with the measuring pin 1, wherein a landslide or rock mass 3 comprises a landslide body or an outward-inclined structural plane upper rock mass 31, a sliding belt or an outward-inclined structural plane 32 and a sliding bed or an outward-inclined structural plane lower rock mass 33 from top to bottom;
the measuring probe 1 is positioned at the upper rock mass 31 of the sliding mass or the outward-inclined structural plane, and the graduated scale 2 is positioned at the lower rock mass 33 of the sliding bed or the outward-inclined structural plane;
the head of the graduated scale 2 is a graduated scale 21, and the tail of the graduated scale 2 is horizontally inserted into a lower rock mass 33 of the sliding bed or the camber structural plane;
the head of the measuring needle 1 is a pointer 11, the pointer 11 is vertically arranged, the downward length of the pointer 11 exceeds the dial 21, and the tail of the measuring needle 1 is horizontally inserted into the upper rock body 31 of the landslide body or the camber structural plane.
The length L of the tail part of the measuring probe 1 horizontally inserted into the upper rock body 31 of the landslide body or the camber structural plane1Length L of 35cm, the end of scale 2 horizontally inserted into the lower rock mass 33 of sliding bed or camber structural plane2＝L1，L1And L2The value of 35cm is based onLong-term experiments.
The height h between the measuring needle 1 and the bottom of the sliding belt or the camber structural surface 321The length L of the horizontal insertion of the tail part of the measuring probe 1 into the upper rock body 31 of the landslide body or the camber structural plane1The relationship between them is:
wherein a is the terrain gradient of the near-empty slope at the deformation shear outlet of the landslide or the rock mass 3, and b is the inclination angle of the sliding belt or the camber structure surface 32;
the height between the measuring needle 1 and the graduated scale 2 is h2Height h from the stylus 1 to the bottom of the sliding belt or camber structure surface 321The relationship of (1) is:
h2＝h1+10cm
the inner diameter of the pointer 11 is 2 mm; the dial 21 is 15cm in length and millimeter in precision, and is convenient for direct measurement by naked eyes.
A first hole 311 is formed in the upper rock body 31 of the landslide body or the outward-inclined structural plane, and the tail part of the measuring pin 1 is horizontally inserted into the first hole 311; and a second hole 331 is formed in the rock mass 33 at the lower part of the sliding bed or the camber structural surface, and the tail part of the graduated scale 2 is horizontally inserted into the second hole 331.
The pointer 11 is away from the length L of the hole of the first hole 3114A length L from the dial 21 to the second hole 331 aperture3The relationship between them is:
wherein L is3Taking the distance between 10 and 20 cm.
When the landslide mass or the rock mass 31 on the upper part of the outward-inclined structural plane deforms and displaces, the pointer 11 can be guaranteed to synchronously dislocate on the dial 21, and deformation displacement data can be conveniently and directly measured.
The first hole 311 and the second hole 331 are horizontal holes with a diameter of 30-50mm, and according to practical experience, the holes are convenient for fixing the measuring pin 1 and the graduated scale 2.
Measuring method of measuring device that landslide or rock mass warp in construction excavation, including following step:
step 1: firstly, drilling a first hole 311 at the upper rock mass 31 of a landslide body or an outward-inclined structural plane, and drilling a second hole 331 at the lower rock mass 33 of a sliding bed or an outward-inclined structural plane; then, cement mortar is filled in the first hole 311 and the second hole 331, and after the cement mortar is filled, the displacement of the rock mass 31 on the upper part of the landslide body or the camber structural plane can be conveniently measured for a long time;
step 2: the tail part of the measuring probe 1 is horizontally inserted into the first hole 311 by the length L1(ii) a The tail of the scale 2 is horizontally inserted into the second hole 331 for a length L2(ii) a Fixing the measuring needle 1 by using a stone or a wood bar at the orifice of the first hole 311, and fixing the graduated scale 2 by using a stone or a wood bar at the orifice of the second hole 331;
and step 3: the topographic gradient of the near-empty slope at the deformation shear outlet of the landslide or the rock mass 3 is a, the inclination angle between the sliding belt or the camber structural surface 33 and the rock mass 31 at the upper part of the landslide or the camber structural surface is b, and the height between the measuring pin 1 and the bottom of the sliding belt or the camber structural surface 33 is h1The height between the measuring needle 1 and the graduated scale 2 is h2Wherein:
h2＝h1+10cm
and 4, step 4: the amount of horizontal displacement of the pointer 11 on the scale 21 is recorded every day, and a time-horizontal displacement graph is made.
Through practical use at multiple places, the measurement result obtained by the utility model is accurate, real and reliable (as shown in figure 4); when the rock mass 31 on the upper part of the landslide body or the camber structural surface has horizontal displacement signs and the horizontal displacement rate is greater than 2mm every day for 3 continuous days, alarms are sent to building units such as owners, design, supervision, construction and the like, and emergency engineering treatment is adopted.
Claims (7)
1. Measuring device that landslide or rock mass warp in construction excavation, its characterized in that: comprises a measuring needle (1) and a graduated scale (2) which is arranged in parallel with the measuring needle (1);
the measuring needle (1) is positioned at the upper rock mass (31) of the landslide body or the outward-inclined structural plane, and the graduated scale (2) is positioned at the lower rock mass (33) of the sliding bed or the outward-inclined structural plane;
the head of the graduated scale (2) is provided with a dial (21), and the tail of the graduated scale (2) is horizontally inserted into a lower rock mass (33) of the sliding bed or the camber structural surface;
the head of the measuring needle (1) is provided with a pointer (11), the pointer (11) is vertically arranged, the downward length of the pointer (11) exceeds the dial (21), and the tail of the measuring needle (1) is horizontally inserted into a landslide body or a rock mass (31) on the upper part of an outward-inclined structural plane.
2. The device for measuring landslide or rock mass deformation in construction excavation according to claim 1, wherein: the tail part of the measuring pin (1) is horizontally inserted into the landslide body or the length L of the rock mass (31) at the upper part of the outward-inclined structural plane135cm, the tail part of the graduated scale (2) is horizontally inserted into the sliding bed or the rock mass (33) at the lower part of the camber structural plane2＝L1。
3. The device for measuring landslide or rock mass deformation in construction excavation according to claim 2, wherein: the height h between the measuring needle (1) and the bottom of the sliding belt or the camber structural surface (32)1The length L of the upper rock mass (31) of the landslide body or the camber structural plane horizontally inserted into the tail part of the measuring pin (1)1The relationship between them is:
wherein a is the terrain gradient of an adjacent empty slope surface at the deformation shear outlet of the landslide or the rock mass (3), and b is the inclination angle of the sliding belt or the camber structure surface (32);
the height between the measuring needle (1) and the graduated scale (2) is h2The height h between the measuring needle (1) and the bottom of the sliding belt or the camber structural surface (32)1The relationship of (1) is:
h2＝h1+10cm。
4. the apparatus for measuring landslide or rock mass deformation in construction excavation according to claim 3, wherein: the inner diameter of the pointer (11) is 2 mm; the dial (21) is arranged with a length of 15cm and a precision of millimeter level.
5. The device for measuring landslide or rock mass deformation in construction excavation according to claim 4, wherein: a first hole (311) is formed in the upper rock body (31) of the landslide body or the outward-inclined structural plane, and the tail of the measuring pin (1) is horizontally inserted into the first hole (311); and a second hole (331) is formed in the rock mass (33) at the lower part of the sliding bed or the camber structural surface, and the tail part of the graduated scale (2) is horizontally inserted into the second hole (331).
6. The device for measuring landslide or rock mass deformation in construction excavation according to claim 5, wherein: the pointer (11) is away from the length L of the hole of the first hole (311)4A length L from the dial (21) to the opening of the second hole (331)3The relationship between them is:
wherein L is3Taking the distance between 10 and 20 cm.
7. The device for measuring landslide or rock mass deformation in construction excavation according to claim 6, wherein: the first hole (311) and the second hole (331) are horizontal holes with the diameter of 30-50 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920328035.6U CN209958321U (en) | 2019-03-15 | 2019-03-15 | Measuring device for landslide or rock mass deformation in construction excavation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920328035.6U CN209958321U (en) | 2019-03-15 | 2019-03-15 | Measuring device for landslide or rock mass deformation in construction excavation |
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| Publication Number | Publication Date |
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| CN209958321U true CN209958321U (en) | 2020-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920328035.6U Active CN209958321U (en) | 2019-03-15 | 2019-03-15 | Measuring device for landslide or rock mass deformation in construction excavation |
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| CN (1) | CN209958321U (en) |
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- 2019-03-15 CN CN201920328035.6U patent/CN209958321U/en active Active
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Address after: 430010 No. 1863 Jiefang Avenue, Jiang'an District, Hubei, Wuhan Patentee after: Changjiang Geotechnical Engineering Co.,Ltd. Patentee after: CHANGJIANG SURVEY PLANNING DESIGN AND RESEARCH Co.,Ltd. Address before: 430010 No. 1863 Jiefang Avenue, Jiang'an District, Hubei, Wuhan Patentee before: CHANGJIANG GEOTECHNICAL ENGINEERING Corp. Patentee before: CHANGJIANG SURVEY PLANNING DESIGN AND RESEARCH Co.,Ltd. |