CN111854664A - Method for monitoring horizontal displacement of pier stud in underpinning of bridge pile foundation - Google Patents
Method for monitoring horizontal displacement of pier stud in underpinning of bridge pile foundation Download PDFInfo
- Publication number
- CN111854664A CN111854664A CN202010749569.3A CN202010749569A CN111854664A CN 111854664 A CN111854664 A CN 111854664A CN 202010749569 A CN202010749569 A CN 202010749569A CN 111854664 A CN111854664 A CN 111854664A
- Authority
- CN
- China
- Prior art keywords
- monitoring
- horizontal displacement
- pier stud
- mark
- underpinning
- 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
- 238000012544 monitoring process Methods 0.000 title claims abstract description 124
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 37
- 238000009424 underpinning Methods 0.000 title claims abstract description 22
- 238000005259 measurement Methods 0.000 claims abstract description 12
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 238000012545 processing Methods 0.000 claims abstract description 6
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000004873 anchoring Methods 0.000 claims description 3
- 239000011083 cement mortar Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 238000013461 design Methods 0.000 claims description 3
- 238000005553 drilling Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 3
- 238000007689 inspection Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001684 chronic effect Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Images
Classifications
-
- 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
- G01B21/04—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 by measuring coordinates of points
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/10—Deep foundations
- E02D27/12—Pile foundations
Landscapes
- Engineering & Computer Science (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Architecture (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a method for monitoring horizontal displacement of a pier stud in underpinning of a bridge pile foundation, which comprises the following steps: (1) arranging monitoring points, wherein the monitoring points are correspondingly arranged at the top and the bottom of the pier column up and down according to groups; (2) embedding a monitoring point, and embedding a monitoring mark at a horizontal displacement monitoring point; (3) observing and collecting data, namely monitoring the horizontal displacement of the pier stud by using a total station and adopting a polar coordinate method; (4) data processing and analysis, 1) data transmission and adjustment calculation to obtain the coordinates of each monitoring point; 2) and analyzing the stability of the monitoring points according to the adjustment calculation result, and comparing the result with the maximum deformation and the maximum measurement error of the monitoring points in two adjacent periods to judge whether the horizontal displacement of the pier stud changes or not. The horizontal displacement monitoring method can continuously monitor and feed back the deformation and displacement of the pier stud, and judges whether the pier stud is horizontally displaced according to the monitoring method, so that the stability and the safety of the pile foundation underpinning construction process are improved.
Description
Technical Field
The invention relates to the technical field of foundation treatment and foundation reinforcement of existing buildings, in particular to a method for monitoring horizontal displacement of a pier stud in underpinning of a bridge pile foundation.
Background
In the construction process of a pile foundation underpinning project, bridge pier columns are influenced inevitably, so that the settlement, deformation and even cracking damage of the pier columns are caused, and therefore strict control is required. In the pile foundation underpinning work progress among the prior art, the mode that mainly adopts to the inspection of the circumstances such as settlement, deformation of pier stud is that disposable inspection is whether accord with standard or regular measurement, and the change to the pier stud is not monitored continuously, and the current mode of regular or interval a period inspection has the incomplete defect of monitoring, can appear monitoring to the pier stud performance of chronic change and omit, brings other potential safety hazards.
Disclosure of Invention
The invention aims to provide a method for monitoring horizontal displacement of a pier stud in underpinning of a bridge pile foundation, which aims to solve the problems in the prior art, can monitor the horizontal displacement of the pier stud and timely take corresponding measures according to the monitoring result.
In order to achieve the purpose, the invention provides the following scheme: the invention provides a method for monitoring horizontal displacement of a pier stud in underpinning of a bridge pile foundation, which comprises the following steps:
(1) arrangement of monitoring points
Monitoring points are correspondingly distributed at the top and the bottom of the pier column up and down according to groups, and the specific distribution positions of the monitoring points are distributed according to design drawings and requirements;
(2) embedding monitoring points
Embedding a monitoring mark at a horizontal displacement monitoring point, and monitoring the horizontal displacement of the monitoring mark on the pier column by adopting a total station;
(3) observation and data acquisition
Arranging a total station on the measuring station, and monitoring the horizontal displacement of the pier stud by using the total station and adopting a polar coordinate method;
(4) data processing and analysis
1) Data transmission and adjustment calculation
The total station carries out measurement recording on data of the monitoring points, the data which are measured and recorded form an electronic original observation file, the electronic original observation file is transmitted to a computer through data transmission processing, and tight adjustment is carried out in the computer by using control network adjustment software to obtain coordinates of each monitoring point;
2) and analyzing the stability of the monitoring points according to the adjustment calculation result, and comparing the result with the maximum deformation and the maximum measurement error of the monitoring points in two adjacent periods to judge whether the horizontal displacement of the pier stud changes or not.
Preferably, in the step (1), no less than 1 group of monitoring points is arranged on each pier, and the number of the monitoring points in each group is no less than 2.
Preferably, in the step (2), the monitoring mark is a round prism mark or a reflector mark.
Preferably, when the adopted monitoring mark is a circular prism mark, the embedding method of the circular prism mark comprises the following steps: drilling a hole in the pier stud in advance, fixing the mark rod of the circular prism mark embedded part at the drilled hole, and filling the gap between the hole and the periphery of the mark rod with cement mortar or an anchoring agent.
Preferably, when the adopted monitoring mark is a reflector mark, the embedding method of the reflector mark comprises the following steps: the surface of the pier stud is cleaned, and then the launching sheet mark is adhered to the surface of the pier stud by using an adhesive.
Preferably, in the step (2), when the monitoring mark is buried, the bottom of the monitoring mark is 0.2-0.5 m higher than the ground surface; and the monitoring mark should avoid the obstacle which obstructs the setting and observation; the monitoring marks should be set facing the reference points.
Preferably, in the step (3), the total station needs to be accurately leveled and centered when being placed, and then the horizontal displacement monitoring point is oriented; after the orientation is finished, the angle and the distance between the monitoring point and the station point are measured, and the coordinates of each monitoring point are automatically calculated through the total station.
Preferably, the adjustment calculation in step (4) requires the following:
firstly, before adjustment, the stability of monitoring points is checked, and the included angle and the distance between adjacent monitoring points in each monitoring period are compared, so that the reliability of calculation data is ensured;
calculating by using adjustment software;
and thirdly, the data position after adjustment should be accurate to 0.1 mm.
Preferably, in the stability analysis in the step (4), the maximum deformation amount and the maximum measurement error of the monitoring point in two adjacent monitoring periods are compared, and when the maximum deformation amount is smaller than the maximum measurement error, it indicates that the horizontal displacement of the monitoring point in the two periods does not change or does not change significantly; and comparing the deformation observation results of a plurality of monitoring periods, and when the maximum deformation amount of adjacent periods is small, but the multiple periods show an obvious change trend after combination, indicating that the horizontal displacement of the monitoring point changes.
Compared with the prior art, the invention has the following beneficial technical effects:
the method for monitoring the horizontal displacement of the pier stud in the underpinning of the bridge pile foundation can continuously monitor and feed back the deformation and the displacement of the pier stud, judge whether the pier stud is horizontally displaced according to the monitoring method, and take corresponding measures in time, so that the stability and the safety of the pile foundation underpinning construction process are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
FIG. 1 is a diagram of the burying form of a monitoring mark on a pier stud;
FIG. 2 is a schematic view of a reflector sign;
FIG. 3 is a schematic structural view of a circular prism mark;
wherein, 1 pier stud; 2, monitoring points; and 3, tunneling.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a method for monitoring horizontal displacement of a pier stud in underpinning of a bridge pile foundation, which aims to solve the problems in the prior art, can monitor the horizontal displacement of the pier stud and timely take corresponding measures according to the monitoring result.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in fig. 1 to 3, the present embodiment provides a method for monitoring horizontal displacement of a pier stud in underpinning of a bridge pile foundation, including the following steps:
(1) arrangement of monitoring points
The monitoring points 2 are correspondingly arranged on the top and the bottom of each pier stud 1 up and down according to groups, the number of the monitoring points 2 of each pier stud 1 is not less than 1 group, and the number of the monitoring points 2 of each group is not less than 2. The specific arrangement positions of the monitoring points 2 are arranged according to the approved third-party monitoring design drawing and requirements.
(2) Method for embedding monitoring points and technical requirements
And monitoring the horizontal displacement of the pier stud 1 by adopting a total station, and burying a circular prism mark or sticking a reflector mark of 10cm multiplied by 10cm at a horizontal displacement measuring point. The method for embedding the measuring points comprises the following steps: the prism mark is embedded and pre-drilled on a pier stud 1 of a bridge, then the prism mark embedded part is placed in, and gaps around the hole and the measuring point mark rod are filled with cement mortar or an anchoring agent. The reflective sheet measuring point marks are buried, the surface of the pier stud is cleaned firstly, and then the reflective sheet measuring points are adhered by using an adhesive. The measuring point mark embedding form is shown in figure 1.
When the monitoring mark is buried, the bottom of the mark is away from the ground for a certain distance, and the distance is generally 0.2-0.5 m higher than the ground surface; when the monitoring mark is buried, attention should be paid to avoid obstacles which hinder mark installation and observation; the prism or reflector mark should face the reference point; the prism or reflector plate mark is firmly embedded or adhered; after the monitoring mark is embedded, a mark is marked nearby.
(3) Observation method and data acquisition
The horizontal displacement monitoring of the pier stud 1 is carried out by using a total station instrument above 1' level and adopting a polar coordinate method. Arranging a total station on a measuring station, accurately leveling and centering, and then orienting a horizontal displacement monitoring point; after the orientation is finished, measuring the angle and the distance between the monitoring point 2 and the set measuring station, and automatically calculating the coordinates of each monitoring point 2 through built-in calculation software of the total station.
Wherein, the observation notice is as follows: a) the used total station, target and prism should be inspected regularly, especially the inspection and correction of the leveling tube and electronic bubble compensation of the collimation part; b) observation should be carried out for three times, namely fixing personnel, fixing instruments and fixing measuring stations; c) instruments and targets are required to be arranged stably, strictly, centrally and flatly; d) observing under the condition that the target imaging is clear and stable; e) the observation can be started only when the temperature of the instrument is consistent with the external temperature; f) the observation precision is prevented from being influenced by external interference as much as possible, and various limit differences are strictly controlled according to the precision requirement.
(4) Data processing and analysis
1) Data transmission and adjustment calculation
The observation record is carried out by a total station measuring record program, each error limiting index control can be completed during observation, an electronic original observation file is formed after the observation is completed, the electronic original observation file is transmitted to a computer through data transmission processing software, and tight adjustment is carried out by using control network adjustment software to obtain coordinates of each point.
The adjustment calculation requirements are as follows:
firstly, before adjustment, the stability of the monitoring points 2 is checked, and the included angles and the distances between adjacent control points in each period are compared, so that the reliability of calculation data is ensured;
calculating by using adjustment software according to a method;
and thirdly, the data position after adjustment should be accurate to 0.1 mm.
2) Monitoring point stability analysis
Firstly, analyzing the stability of the monitoring points 2 based on stable reference points to obtain adjustment calculation results;
secondly, the change analysis of the monitoring points 2 of two adjacent monitoring periods is carried out by comparing the maximum deformation and the maximum measurement error (twice error), and when the maximum deformation is smaller than the maximum measurement error, the observation point is considered to have no change or have insignificant change in the two periods;
and thirdly, for a plurality of monitoring period deformation observation results, when the deformation of adjacent periods is small, but the adjacent periods show obvious variation trend after being combined for a plurality of periods, the horizontal displacement of the monitoring point 2 on the pier stud 1 is considered to be changed, namely the pier stud 1 has the change of the horizontal displacement.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (9)
1. A horizontal displacement monitoring method for a pier stud in underpinning of a bridge pile foundation is characterized by comprising the following steps:
(1) arrangement of monitoring points
Monitoring points are correspondingly distributed at the top and the bottom of the pier column up and down according to groups, and the specific distribution positions of the monitoring points are distributed according to design drawings and requirements;
(2) embedding monitoring points
Embedding a monitoring mark at a horizontal displacement monitoring point, and monitoring the horizontal displacement of the monitoring mark on the pier column by adopting a total station;
(3) observation and data acquisition
Arranging a total station on the measuring station, and monitoring the horizontal displacement of the pier stud by using the total station and adopting a polar coordinate method;
(4) data processing and analysis
1) Data transmission and adjustment calculation
The total station carries out measurement recording on data of the monitoring points, the data which are measured and recorded form an electronic original observation file, the electronic original observation file is transmitted to a computer through data transmission processing, and tight adjustment is carried out in the computer by using control network adjustment software to obtain coordinates of each monitoring point;
2) and analyzing the stability of the monitoring points according to the adjustment calculation result, and comparing the result with the maximum deformation and the maximum measurement error of the monitoring points in two adjacent periods to judge whether the horizontal displacement of the pier stud changes or not.
2. The method for monitoring the horizontal displacement of the pier stud in underpinning the bridge pile foundation according to claim 1, which is characterized in that: in the step (1), no less than 1 group of monitoring points are distributed on each pier, and no less than 2 monitoring points are distributed on each group.
3. The method for monitoring the horizontal displacement of the pier stud in underpinning the bridge pile foundation according to claim 1, which is characterized in that: in the step (2), the monitoring mark is a round prism mark or a reflector plate mark.
4. The method for monitoring the horizontal displacement of the pier stud in underpinning the bridge pile foundation according to claim 3, which is characterized in that: when the adopted monitoring mark is a round prism mark, the embedding method of the round prism mark comprises the following steps: drilling a hole in the pier stud in advance, fixing the mark rod of the circular prism mark embedded part at the drilled hole, and filling the gap between the hole and the periphery of the mark rod with cement mortar or an anchoring agent.
5. The method for monitoring the horizontal displacement of the pier stud in underpinning the bridge pile foundation according to claim 3, which is characterized in that: when the adopted monitoring mark is a reflector plate mark, the embedding method of the reflector plate mark comprises the following steps: the surface of the pier stud is cleaned, and then the launching sheet mark is adhered to the surface of the pier stud by using an adhesive.
6. The method for monitoring the horizontal displacement of the pier stud in underpinning the bridge pile foundation according to claim 1, which is characterized in that: in the step (2), when the monitoring mark is buried, the bottom of the monitoring mark is 0.2-0.5 m higher than the ground surface; and the monitoring mark should avoid the obstacle which obstructs the setting and observation; the monitoring marks should be set facing the reference points.
7. The method for monitoring the horizontal displacement of the pier stud in underpinning the bridge pile foundation according to claim 1, which is characterized in that: in the step (3), the total station is required to be accurately leveled and centered when being arranged, and then the horizontal displacement monitoring point is oriented; after the orientation is finished, the angle and the distance between the monitoring point and the station point are measured, and the coordinates of each monitoring point are automatically calculated through the total station.
8. The method for monitoring the horizontal displacement of the pier stud in underpinning the bridge pile foundation according to claim 1, which is characterized in that: the adjustment calculation in the step (4) requires the following steps:
firstly, before adjustment, the stability of monitoring points is checked, and the included angle and the distance between adjacent monitoring points in each monitoring period are compared, so that the reliability of calculation data is ensured;
calculating by using adjustment software;
and thirdly, the data position after adjustment should be accurate to 0.1 mm.
9. The method for monitoring the horizontal displacement of the pier stud in underpinning the bridge pile foundation according to claim 1, which is characterized in that: in the stability analysis in the step (4), the maximum deformation and the maximum measurement error of the monitoring point in two adjacent monitoring periods are compared, and when the maximum deformation is smaller than the maximum measurement error, it is indicated that the horizontal displacement of the monitoring point in the two periods is not changed or does not change significantly; and comparing the deformation observation results of a plurality of monitoring periods, and when the maximum deformation amount of adjacent periods is small, but the multiple periods show an obvious change trend after combination, indicating that the horizontal displacement of the monitoring point changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010749569.3A CN111854664A (en) | 2020-07-30 | 2020-07-30 | Method for monitoring horizontal displacement of pier stud in underpinning of bridge pile foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010749569.3A CN111854664A (en) | 2020-07-30 | 2020-07-30 | Method for monitoring horizontal displacement of pier stud in underpinning of bridge pile foundation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111854664A true CN111854664A (en) | 2020-10-30 |
Family
ID=72945003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010749569.3A Pending CN111854664A (en) | 2020-07-30 | 2020-07-30 | Method for monitoring horizontal displacement of pier stud in underpinning of bridge pile foundation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111854664A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112797962A (en) * | 2021-01-04 | 2021-05-14 | 中铁城际规划建设有限公司 | Pushing construction monitoring structure and method for prestressed concrete continuous beam bridge |
| CN113465557A (en) * | 2021-07-22 | 2021-10-01 | 深圳市大升高科技工程有限公司 | Real-time monitoring method for overhead bridge displacement |
| CN114518295A (en) * | 2020-11-19 | 2022-05-20 | 中车株洲电力机车研究所有限公司 | Tower load measuring method, device and system |
| CN115218843A (en) * | 2022-07-12 | 2022-10-21 | 四川中水成勘院测绘工程有限责任公司 | Method for judging stability of horizontal displacement monitoring control network |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736662A (en) * | 2009-12-30 | 2010-06-16 | 中铁八局集团有限公司 | Network layout method of control foundation pile |
| CN102409703A (en) * | 2011-08-17 | 2012-04-11 | 北京交通大学 | A monitoring method and monitoring device for horizontal displacement of foundation pit pile top |
| CN102735226A (en) * | 2012-07-10 | 2012-10-17 | 广西壮族自治区中国科学院广西植物研究所 | Measuring calibration method for monitoring sample plots of Karst forest communities |
| CN104034275A (en) * | 2014-06-09 | 2014-09-10 | 同济大学 | Total station instrument based subway tunnel deformation automatic monitoring method and device |
| CN109138003A (en) * | 2018-08-13 | 2019-01-04 | 山东大学 | A kind of soil body deeply mixing cement-soil pile monitoring method based on opposite side ranging |
| CN110230328A (en) * | 2019-06-24 | 2019-09-13 | 广州市胜特建筑科技开发有限公司 | Pile foundation underpinning System information construction electronic monitoring method |
| CN110940322A (en) * | 2019-10-27 | 2020-03-31 | 中铁二院工程集团有限责任公司 | A high-precision railway cross-active fracture deformation monitoring method |
| CN111412890A (en) * | 2020-03-27 | 2020-07-14 | 中铁上海工程局集团有限公司 | A kind of high-slope side slope monitoring method |
-
2020
- 2020-07-30 CN CN202010749569.3A patent/CN111854664A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101736662A (en) * | 2009-12-30 | 2010-06-16 | 中铁八局集团有限公司 | Network layout method of control foundation pile |
| CN102409703A (en) * | 2011-08-17 | 2012-04-11 | 北京交通大学 | A monitoring method and monitoring device for horizontal displacement of foundation pit pile top |
| CN102735226A (en) * | 2012-07-10 | 2012-10-17 | 广西壮族自治区中国科学院广西植物研究所 | Measuring calibration method for monitoring sample plots of Karst forest communities |
| CN104034275A (en) * | 2014-06-09 | 2014-09-10 | 同济大学 | Total station instrument based subway tunnel deformation automatic monitoring method and device |
| CN109138003A (en) * | 2018-08-13 | 2019-01-04 | 山东大学 | A kind of soil body deeply mixing cement-soil pile monitoring method based on opposite side ranging |
| CN110230328A (en) * | 2019-06-24 | 2019-09-13 | 广州市胜特建筑科技开发有限公司 | Pile foundation underpinning System information construction electronic monitoring method |
| CN110940322A (en) * | 2019-10-27 | 2020-03-31 | 中铁二院工程集团有限责任公司 | A high-precision railway cross-active fracture deformation monitoring method |
| CN111412890A (en) * | 2020-03-27 | 2020-07-14 | 中铁上海工程局集团有限公司 | A kind of high-slope side slope monitoring method |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114518295A (en) * | 2020-11-19 | 2022-05-20 | 中车株洲电力机车研究所有限公司 | Tower load measuring method, device and system |
| CN112797962A (en) * | 2021-01-04 | 2021-05-14 | 中铁城际规划建设有限公司 | Pushing construction monitoring structure and method for prestressed concrete continuous beam bridge |
| CN112797962B (en) * | 2021-01-04 | 2024-05-14 | 中铁城际规划建设有限公司 | Pushing construction monitoring structure and monitoring method for prestressed concrete continuous beam bridge |
| CN113465557A (en) * | 2021-07-22 | 2021-10-01 | 深圳市大升高科技工程有限公司 | Real-time monitoring method for overhead bridge displacement |
| CN113465557B (en) * | 2021-07-22 | 2023-11-24 | 深圳市大升勘测技术有限公司 | Real-time monitoring method for overpass displacement |
| CN115218843A (en) * | 2022-07-12 | 2022-10-21 | 四川中水成勘院测绘工程有限责任公司 | Method for judging stability of horizontal displacement monitoring control network |
| CN115218843B (en) * | 2022-07-12 | 2025-01-03 | 四川中水成勘院测绘工程有限责任公司 | Stability Evaluation Method of Horizontal Displacement Monitoring Control Network |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111854664A (en) | Method for monitoring horizontal displacement of pier stud in underpinning of bridge pile foundation | |
| AU2020433233B2 (en) | System and method for monitoring and verifying global failure mode of soil and rock dual-element side slope | |
| Tang et al. | Characterization of laser scanners and algorithms for detecting flatness defects on concrete surfaces | |
| CN108280969B (en) | A high slope surface deformation monitoring and early warning system and its early warning method | |
| CN106524939B (en) | A kind of crack three-dimensional state variation monitoring method and monitoring system | |
| CN113802622A (en) | Method for monitoring construction safety of deep foundation pit near railway | |
| CN106767676A (en) | A kind of space vertical characteristics point location measurement method and system | |
| CN112033355A (en) | Method for monitoring settlement of pier stud in underpinning of bridge pile foundation | |
| CN113236260A (en) | Construction monitoring method for all-dimensional shield underpass of existing subway station | |
| CN109855544B (en) | Ground surface crack monitoring device and method based on laser ranging | |
| CN103557800B (en) | Multilayer floor slab layering horizontal displacement monitoring method | |
| CN109443327A (en) | A kind of distribution method of SURVEYING CONTROL NETWORK | |
| CN119507496A (en) | A safety monitoring device and method for deep foundation pit construction near railway | |
| CN105586994A (en) | Monitoring device and monitoring method for horizontal displacement of pile tip of retaining pile for foundation pit | |
| CN118979504A (en) | A foundation pit settlement monitoring method and system based on numerical analysis | |
| CN111271052A (en) | Combined device and method for measuring pile depth, pile diameter and pile hole perpendicularity | |
| CN210108333U (en) | Vault settlement measurement device based on precision laser rangefinder | |
| CN114941350A (en) | Displacement monitoring method for original supporting pile above subway engineering | |
| CN112359884B (en) | Ultrasonic grooving detection probe device and detection method thereof | |
| CN115683016B (en) | A method for accurate layout of equipment foundation in underground enclosed space | |
| CN105806286B (en) | Basic point implanted reservoir dam displacement monitoring method and device | |
| CN116465455B (en) | Integrated digital monitoring method and system for physical indexes of soil body | |
| CN202734811U (en) | Electron laser target and measuring device of electron laser target | |
| CN111649720A (en) | A monitoring device and method for the settlement of a working base point of a large-slope tunnel | |
| CN110206075A (en) | A kind of deep foundation pit supporting structure top horizontal displacement monitor and application method |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20201030 |