CN111412890A - High slope monitoring method - Google Patents
High slope monitoring method Download PDFInfo
- Publication number
- CN111412890A CN111412890A CN202010232316.9A CN202010232316A CN111412890A CN 111412890 A CN111412890 A CN 111412890A CN 202010232316 A CN202010232316 A CN 202010232316A CN 111412890 A CN111412890 A CN 111412890A
- Authority
- CN
- China
- Prior art keywords
- monitoring
- slope
- side slope
- point
- reference points
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention discloses a high slope monitoring method, which comprises the steps of establishing monitoring points in a project construction area range; arranging more than 3 level reference points at different heights in the project construction area range to form a vertical displacement monitoring network, and arranging more than 3 plane reference points in the project construction area range to form a plane displacement monitoring network by taking a construction plane coordinate system as a reference; observing according to precise triangulation elevation measurement by adopting a precise total station with nominal precision, and periodically observing each point to obtain the settlement change of each deformation observation point; observing a horizontal displacement mark buried on a slope by adopting a precision total station with nominal precision according to a free station measurement method or a polar coordinate method, and periodically observing each point to obtain the horizontal displacement change of each deformation observation point; according to the vertical and horizontal change data, the three-dimensional model is combined, and the overall change trend of the side slope can be visualized and quantized; the invention can measure the settlement change and the horizontal displacement change of each base point of the side slope, thereby having a comprehensive understanding on the characteristics of the side slope and playing a guiding role in making a reasonable and effective scheme for the side slope construction.
Description
Technical Field
The invention relates to the field of slope construction, in particular to a high slope monitoring method.
Background
The side slope refers to a slope surface with a certain slope which is formed on two sides of the roadbed to ensure the stability of the roadbed. In road construction, in order to guarantee the construction process, the side slope needs to be monitored, so that the geological characteristics of the side slope can be conveniently known, corresponding construction can be carried out according to the geological characteristics, and the construction efficiency and the construction quality are guaranteed.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a high slope monitoring method, which can comprehensively monitor and understand a slope and is convenient for slope construction.
In order to solve the technical problems, the invention provides the following technical scheme:
a high slope monitoring method comprises the following specific steps:
s100: establishing monitoring points in the project construction area range;
s200: arranging more than 3 level reference points at different heights in the project construction area range to form a vertical displacement monitoring network, arranging the level reference points and monitoring points together to form a closed or attached line, and calculating the elevation of each level reference point by using the adjustment;
s300: taking a construction plane coordinate system as a reference, arranging more than 3 plane reference points in the project construction area range, and matching the reference points with monitoring points to form a plane displacement monitoring network;
s400: observing according to precise triangulation elevation measurement by adopting a precise total station with nominal precision of 1'/1 mm +1ppm, and periodically observing each point to obtain the settlement change of each deformation observation point;
s500: observing a horizontal displacement mark buried on a slope by adopting a precise total station with nominal precision of 1'/1 mm +1ppm according to a free station measurement method or a polar coordinate method, and obtaining the horizontal displacement change of each deformation observation point through periodic observation of each point;
s600: inspecting the working condition site, and observing the type, characteristics and self-stability of the rock-soil body of the excavated surface, the size of the leaked water and the development condition; excavating length, layering height and gradient, and excavating surface exposure time; the measures and effects of cutting and draining the earth surface around the side slope, and the existence of accumulated water at the slope bottom; whether the side slope soil body has cracks or not and obviously sinks; whether the side slope is overloaded or not is determined; whether the side slope has displacement or not and whether the slope surface has cracking or not. Continuity of the lattice beam, presence or absence of excessive deformation or cracking;
s700: and (4) regularly inspecting the integrity and protection conditions of the reference points, the monitoring points and the monitoring components, so as to ensure the monitoring precision.
As a preferred technical scheme of the invention, the reference points in the vertical displacement monitoring network and the plane displacement monitoring network are arranged outside the ranges of excavation, ground settlement and vibration areas.
As a preferred technical scheme of the invention, the reference points of the vertical displacement monitoring net and the plane displacement monitoring net in the rock stratum are composed of concrete protection piers and steel prefabricated members, the lower ends of the steel prefabricated members are inserted into the rock stratum, the upper ends of the steel prefabricated members are provided with the concrete protection piers positioned on the surface of the rock stratum, and the tops of the steel prefabricated members are hemispherical.
As a preferred technical scheme of the invention, the reference points of the vertical displacement monitoring net and the plane displacement monitoring net in the soil layer are composed of a concrete protection pier, a steel prefabricated member and a protective cover, the lower end of the steel prefabricated member is fixedly arranged in the concrete protection pier, the steel prefabricated member and the concrete protection pier are both positioned in a soil pit of the soil layer, and the protective cover is hermetically placed at the soil pit opening.
As a preferable technical scheme of the invention, the monitoring point is embedded with the three-dimensional measuring mark, a reinforcing steel bar with the diameter larger than 16mm is used, a reinforcing steel bar head is embedded by adopting a drilling embedding mode, a cross mark is carved on the reinforcing steel bar head, and the embedding depth of the ground settlement monitoring point is 1 meter.
As a preferred technical scheme of the invention, the total station is a DINI Trimble electronic precision level.
As a preferred technical scheme of the invention, a vertical displacement monitoring net and a plane displacement monitoring net are arranged on the top of the slope and each level of construction platform.
Compared with the prior art, the invention can achieve the following beneficial effects:
according to the invention, the monitoring points and the base points are arranged on the high slope to form the vertical monitoring net and the plane monitoring net, the settlement change and the horizontal displacement change of each base point can be obtained through periodic observation of each base point, and a three-dimensional model is combined, so that the slope characteristics are comprehensively known, a reasonable construction scheme is formulated for guiding slope construction in complex high slope construction, and the construction safety, the construction efficiency and the construction quality are improved.
Drawings
FIG. 1 is a side slope monitoring point floor plan of the present invention;
FIG. 2 is a schematic cross-sectional view of a slope monitoring point of the present invention;
fig. 3 is a schematic view of the installation structure of the total station of the slope monitoring point.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Referring to fig. 1-3, a method for monitoring a high slope includes the following steps:
s100: establishing monitoring points in the project construction area range;
s200: arranging more than 3 level reference points at different heights in the project construction area range to form a vertical displacement monitoring network, arranging the level reference points and monitoring points together to form a closed or attached line, and calculating the elevation of each level reference point by using the adjustment difference (the main technical indexes and requirements of the vertical displacement monitoring network are shown in a table 2);
s300: taking a construction plane coordinate system as a reference, arranging more than 3 plane reference points in the project construction area range, and matching the reference points with monitoring points to form a plane displacement monitoring network (the main technical indexes and requirements of the horizontal displacement monitoring network are shown in a table 3);
s400: observing according to precise triangulation elevation measurement by adopting a precise total station with nominal precision of 1'/1 mm +1ppm, and periodically observing each point to obtain the settlement change of each deformation observation point;
s500: observing a horizontal displacement mark buried on a slope by adopting a precise total station with nominal precision of 1'/1 mm +1ppm according to a free station measurement method or a polar coordinate method, and obtaining the horizontal displacement change of each deformation observation point through periodic observation of each point;
s600: inspecting the working condition site, and observing the type, characteristics and self-stability of the rock-soil body of the excavated surface, the size of the leaked water and the development condition; excavating length, layering height and gradient, and excavating surface exposure time; the measures and effects of cutting and draining the earth surface around the side slope, and the existence of accumulated water at the slope bottom; whether the side slope soil body has cracks or not and obviously sinks; whether the side slope is overloaded or not is determined; whether the side slope has displacement or not and whether the slope surface has cracking or not. Continuity of the lattice beam, presence or absence of excessive deformation or cracking;
s700: and (4) regularly inspecting the integrity and protection conditions of the reference points, the monitoring points and the monitoring components, so as to ensure the monitoring precision.
The datum points in the vertical displacement monitoring network and the plane displacement monitoring network are all arranged outside the ranges of excavation, ground settlement and vibration areas, so that the datum points are prevented from being influenced by external force to shift or settle, and the monitoring precision is improved.
The benchmark of vertical displacement monitoring net and plane displacement monitoring net in the stratum comprises concrete protection mound and steel prefab, the lower extreme of steel prefab is pegged graft in the stratum, the upper end of steel prefab is provided with the concrete protection mound that is located the stratum surface, the top of steel prefab is the hemisphere. The datum point of the vertical displacement monitoring net and the plane displacement monitoring net in the soil layer is composed of a concrete protection pier, a steel prefabricated member and a protective cover, the lower end of the steel prefabricated member is fixedly installed in the concrete protection pier, the steel prefabricated member and the concrete protection pier are both located in a soil pit of the soil layer, and the protective cover is placed at a soil pit opening in a sealed mode. The datum point can be forcibly centered, the centering precision reaches 0.5mm, and the monitoring precision is improved.
The three-dimensional measuring mark is buried in the monitoring point, a reinforcing steel bar head is buried by using a reinforcing steel bar with the diameter larger than 16mm in a drilling burying mode, a cross mark is carved on the reinforcing steel bar head, and the burying depth of the ground settlement monitoring point is 1 m.
The total station is a DINI Trimble electronic precision level gauge, is convenient to use and is accurate in measurement.
Vertical displacement monitoring net and plane displacement monitoring net all are provided with on the top of slope and every grade of construction platform of side slope, can detect the top of slope and every grade of construction platform of side slope, make the monitoring data more comprehensive.
Table 1 monitoring items table
TABLE 2 vertical displacement monitoring network main technical index and requirement table
Table 3 main technical index and requirement table of horizontal displacement monitoring network
| Serial number | Item | Index or tolerance |
| 1 | Horizontal angle observation of measured data | 6 |
| 2 | Error in angle measurement | 1 second |
| 3 | Edge measurement phase centering error | ≤1/100000 |
| 4 | Number of returns per side | Go and go each 4 measurements |
| 5 | Poor distance-measured reading | 1mm |
| 6 | Poor distance per pass | 1.5mm |
| 7 | Minimum reading for meteorological data determination | Temperature: 0.2 degrees centigrade, air pressure: 50 Pa |
According to the invention, the monitoring points and the base points are arranged on the high slope to form the vertical monitoring net and the plane monitoring net, the settlement change and the horizontal displacement change of each base point can be obtained through periodic observation of each base point, and a three-dimensional model is combined, so that the slope characteristics are comprehensively known, a reasonable construction scheme is formulated for guiding slope construction in complex high slope construction, and the construction safety, the construction efficiency and the construction quality are improved.
The embodiments of the present invention are not limited thereto, and according to the above-described embodiments of the present invention, other embodiments obtained by modifying, replacing or combining the above-described preferred embodiments in various other forms without departing from the basic technical idea of the present invention by using the conventional technical knowledge and the conventional means in the field can fall within the scope of the present invention.
Claims (7)
1. A high slope side slope monitoring method is characterized by comprising the following specific steps:
s100: establishing monitoring points in the project construction area range;
s200: arranging more than 3 level reference points at different heights in the project construction area range to form a vertical displacement monitoring network, arranging the level reference points and monitoring points together to form a closed or composite line, and calculating the elevation of each level reference point by using the adjustment;
s300: taking a construction plane coordinate system as a reference, arranging more than 3 plane reference points in the project construction area range, and matching the reference points with monitoring points to form a plane displacement monitoring network;
s400: observing according to precise triangulation elevation measurement by adopting a precise total station with nominal precision of 1'/1 mm +1ppm, and periodically observing each point to obtain the settlement change of each deformation observation point;
s500: observing a horizontal displacement mark buried on a slope by adopting a precise total station with nominal precision of 1'/1 mm +1ppm according to a free station measurement method or a polar coordinate method, and obtaining the horizontal displacement change of each deformation observation point through periodic observation of each point;
s600: inspecting the working condition site, and observing the type, characteristics and self-stability of the rock-soil body of the excavated surface, the size of the leaked water and the development condition; excavating length, layering height and gradient, and excavating surface exposure time; the measures and effects of cutting and draining the earth surface around the side slope, and the existence of accumulated water at the slope bottom; whether the side slope soil body has cracks or not and obviously sinks; whether the side slope is overloaded or not is determined; whether the side slope has displacement or not and whether the slope surface has cracking or not; continuity of the lattice beam, presence or absence of excessive deformation or cracking;
s700: and (4) regularly inspecting the integrity and protection conditions of the reference points, the monitoring points and the monitoring components, so as to ensure the monitoring precision.
2. The method of claim 1, wherein the reference points in the vertical displacement monitoring network and the planar displacement monitoring network are located outside the excavation, ground settlement and vibration areas.
3. The method for monitoring the high slope and side slope according to claim 1, wherein the reference points of the vertical displacement monitoring net and the plane displacement monitoring net in the rock stratum are composed of concrete protection piers and steel prefabricated members, the lower ends of the steel prefabricated members are inserted into the rock stratum, the upper ends of the steel prefabricated members are provided with the concrete protection piers positioned on the surface of the rock stratum, and the tops of the steel prefabricated members are hemispherical.
4. The method for monitoring the high slope side slope according to claim 1, wherein the reference points of the vertical displacement monitoring net and the plane displacement monitoring net in the soil layer are composed of a concrete protection pier, a steel prefabricated member and a protective cover, the lower end of the steel prefabricated member is fixedly arranged in the concrete protection pier, the steel prefabricated member and the concrete protection pier are both positioned in a soil pit of the soil layer, and the protective cover is hermetically placed at the opening of the soil pit.
5. The method for monitoring the high slope and side slope according to claim 1, wherein a three-dimensional measuring mark is buried in the monitoring point, a reinforcing steel bar head is buried by drilling a reinforcing steel bar with the diameter larger than 16mm, a cross mark is carved on the reinforcing steel bar head, and the burying depth of the ground settlement monitoring point is 1 meter.
6. The method of claim 1, wherein the total station is a DINITrimble electronic precision level.
7. The method for monitoring the side slope of the high slope according to claim 1, wherein a vertical displacement monitoring net and a plane displacement monitoring net are arranged on the top of the side slope and each stage of construction platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010232316.9A CN111412890A (en) | 2020-03-27 | 2020-03-27 | High slope monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010232316.9A CN111412890A (en) | 2020-03-27 | 2020-03-27 | High slope monitoring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111412890A true CN111412890A (en) | 2020-07-14 |
Family
ID=71489370
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010232316.9A Pending CN111412890A (en) | 2020-03-27 | 2020-03-27 | High slope monitoring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111412890A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111854664A (en) * | 2020-07-30 | 2020-10-30 | 河北建设勘察研究院有限公司 | Method for monitoring horizontal displacement of pier stud in underpinning of bridge pile foundation |
| CN112033355A (en) * | 2020-07-30 | 2020-12-04 | 河北建设勘察研究院有限公司 | Method for monitoring settlement of pier stud in underpinning of bridge pile foundation |
-
2020
- 2020-03-27 CN CN202010232316.9A patent/CN111412890A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111854664A (en) * | 2020-07-30 | 2020-10-30 | 河北建设勘察研究院有限公司 | Method for monitoring horizontal displacement of pier stud in underpinning of bridge pile foundation |
| CN112033355A (en) * | 2020-07-30 | 2020-12-04 | 河北建设勘察研究院有限公司 | Method for monitoring settlement of pier stud in underpinning of bridge pile foundation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110631560B (en) | Underground excavation interval monitoring and measuring method for subway station in dense building area | |
| CN111998825B (en) | Monitoring and measuring method for shallow buried section of tunnel | |
| CN111412890A (en) | High slope monitoring method | |
| CN102269578A (en) | Device for measuring vertical deformation of spatial structure | |
| CN112836270A (en) | Method for predicting influence of diving precipitation on building settlement | |
| CN115988445A (en) | Slope staged combined monitoring method based on wireless transmission | |
| CN107100213A (en) | Soil disturbance monitoring system and monitoring method of the bridge construction of pile groups to adjacent piles | |
| CN111335904A (en) | Shield downward-penetrating building construction monitoring method | |
| CN110374094A (en) | A kind of construction method of mechanical hole perfusion post | |
| CN113236260A (en) | Construction monitoring method for all-dimensional shield underpass of existing subway station | |
| CN108592872A (en) | A kind of weak protection Dynamic Construction method of unilateral side high slope shallow cut | |
| CN207277308U (en) | Bridge construction of pile groups monitors system to the soil disturbance of adjacent piles | |
| CN109811771B (en) | Simple method for preventing anchor rod steel waist beam from bending during tensioning | |
| CN103410135B (en) | Riverbed level measurement method based on network drill rod detection | |
| CN116592938A (en) | Multifunctional observation tube for earth and rockfill dam | |
| CN112187843A (en) | BIM-based system and method for automatically monitoring capital construction risks of deep foundation pit | |
| CN201803708U (en) | Device for measuring vertical deformation of space structure | |
| CN109765260A (en) | Frost heave monomer, detection device and its detection method of flexible non-contact formula detection soil | |
| CN115369885A (en) | BIM and unmanned aerial vehicle-based dynamic monitoring method for deep foundation pit construction | |
| CN211900605U (en) | Shield construction monitoring structure for down-penetrating urban dense building pipeline | |
| CN115478567A (en) | Tunnel open excavation construction monitoring method with underground track penetrating upwards and adjacent to peripheral buildings | |
| CN114518292A (en) | Model test device and test method for high-speed railway roadbed of inclined crossing karez | |
| Gabrysch | Ground-water withdrawals and land-surface subsidence in the Houston-Galveston region, Texas, 1906-80 | |
| CN116007573A (en) | High-excavation layered settlement monitoring method | |
| CN116180820A (en) | Rotational flow pool foundation pit monitoring technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |