CN101457533A - Foundation ditch digging real-time detection method - Google Patents
Foundation ditch digging real-time detection method Download PDFInfo
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- CN101457533A CN101457533A CNA2007101721464A CN200710172146A CN101457533A CN 101457533 A CN101457533 A CN 101457533A CN A2007101721464 A CNA2007101721464 A CN A2007101721464A CN 200710172146 A CN200710172146 A CN 200710172146A CN 101457533 A CN101457533 A CN 101457533A
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Abstract
The invention relates to a real-time detection method of excavation of a foundation pit, which is used for detecting the displacement change of the peripheral soil body of the pit in the excavation process of the foundation pit, the change of the pressure of the peripheral soil body of the pit and the change of raised soil body of the bottom of the pit and belongs to the construction engineering field. The invention utilizes a pressure sensor and a displacement sensor to detect the axial force change of a steel support device of an internal hydraulic oil cylinder in real time; an optical distance meter is used for detecting the horizontal distance and longitudinal distance of the periphery of the foundation pit, then a three-dimensional laser scanner is used for monitoring the change of raised or concave surface of the foundation pit in real time and visual monitoring and operation are carried out by a computer. Compared with the existing detection method of the foundation pit, the invention realizes the supporting monitoring of the foundation pit with automatic collection, can greatly improve the degree of automation and the safety of the construction, saves the labor, simultaneously realizes the purpose of construction with high efficiency and can be widely applied to the field of construction of the foundation pit.
Description
Technical field:
The present invention relates to a kind of construction detection method, particularly a kind of foundation ditch digging real-time detection method belongs to building engineering field.
Background technology:
Current, Foundation Pit Support Design does not still have ripe method in order to calculating the soil deformation around the foundation ditch, and the detection by accurately and timely in the construction can be instructed excavation of foundation pit and supporting, helps in time taking emergency measures, and avoids or alleviates destructive consequence.
It is a kind of detection means of reflection foundation pit deformation situation directly perceived that deep foundation ditch detects, and is information-aided construction a kind of method commonly used.Construction detects is guaranteeing to play crucial effect on the deep pit digging safety.The main contents that detect have the displacement sedimentation, foundation ditch protuberance, WATER LEVEL CHANGES of displacement sedimentation and deformation, the ground settlement of axial force of the supports, space enclosing structure, the displacement sedimentation of pipeline, peripheral construction etc.In the excavation of foundation pit construction; detect these contents timely and accurately; find some monitor datas near or when surpassing warning value; can find the problem that exists in the work progress timely and accurately; just can adjust construction sequence timely and accurately; and take corresponding correct countermeasure, to reach effective control foundation pit deformation, guarantee the foundation ditch purpose of safety.
Find through the Searches of Patent Literature, China Patent No. is: 96116217.1, name is called: a kind of excavation of foundation pit is to the prediction and the control method of environmental nuisance, application is artificial: Tongji University, this patent of invention has been introduced a kind of employing stochastic medium theory method and Finite Element in conjunction with the capable back analysis of work progress meta shift-in, foundation ditch peripheral ground and retaining wall are done the sedimentation of arbitrary section random time and the prediction of displacement, withstand retaining wall by hydraulic column that disposes hydraulic power unit and the support system of forming by assembled steel tube or reinforced concrete precast member then, and make corresponding boost pressure regulation by result of calculation at any time, thereby guarantee that building and underground utilities around the foundation ditch are in a safe condition.But on its mode of occupation and form of structure, it can not carry out three-dimensional real-time visual monitoring, can not satisfy the demand of the conduct monitoring at all levels of city big, dark type subway foundation pit construction support.
Summary of the invention
The objective of the invention is to overcome deficiency of the prior art, a kind of foundation ditch digging real-time detection method is provided, be used for the monitoring management of foundation ditch three-dimensional visualization.The axle power that this invention utilizes pressure sensor, displacement transducer to measure built-in hydraulic jack steel bracing or strutting arrangement in real time changes, utilize optical rangefinder to measure the foundation ditch periphery and laterally reach fore-and-aft distance, utilize three-dimensional laser scanner to monitor foundation ditch earth heaving or back variation in real time again, and carry out visual control and operation by computer.
Compensation be monitored and be regulated automatically to built-in hydraulic jack steel bracing or strutting arrangement can in real time to the foundation ditch axial force of the supports, adopt automatic data collection, fault alarm, 3 D stereo to show the axle power that multiaxis distributes, simultaneously also by utilizing three-dimensional laser scanner to monitor foundation ditch earth heaving or back variation in real time.During construction, energy real-time monitoring bracing or strutting arrangement shows three-dimensional foundation ditch and state on every side thereof in real time, makes control directly perceived more, effective, and the early warning unsafe condition in time takes treatment measures to prevent the accident generation.It can judge the variation tendency of support system automatically according to the real-time image data of support system, thereby can reasonably make the control scheme, proterties to foundation pit supporting construction in following short-term is analyzed, early warning and control, make the support system works fine, give full play to early warning, the directive function of monitoring to construction, guarantee the resistance to overturning of foundation ditch, prevent the generation of foundation pit construction accident
The present invention is achieved by the following technical solutions: the present invention is the work principle with comprehensive real-time monitoring in whole foundation pit construction observation process.One side is by monitoring in real time and the axle power of control controllable hydraulic support and the variation of displacement, the hydraulic pressure support observed pressure value and the theoretical pressure value that distribute on vertical each degree of depth and horizontal each span points are compared, promptly report to the police in case the observed pressure value exceeds the threshold of theoretical equilibrium pressure value or unstability.Monitor the depression and the protuberance of foundation ditch bottom surface on the other hand by three-dimensional laser scanner in real time, thereby accomplish conduct monitoring at all levels, reach the effect of control foundation ditch safe construction.Package unit is controlled execution by computer software control operating system, can realize full automatic data acquisition, processing, storage, programme-control; Strong point feedback information is collected and the function of visual synchrodata processing, and visual three-dimensional prediction is carried out in the distortion of foundation ditch body of wall.
This foundation ditch digging real-time detection method is used for detecting hole periphery land movement variation, the peripheral soil pressure variation in hole and the hole subsoil body protuberance variation of Excavation Process, its following step:
1. support reference point at foundation ditch and set up built-in hydraulic jack steel bracing or strutting arrangement, this device is made up of hydraulic jack, outside seal cover, hydraulic power system and head ball pivot seat; One end and fixedly steel support and to be bolted to connection, the other end is supported on the foundation pit supporting construction;
2. oil cylinder working-pressure sensor and oil cylinder stroke sensor are installed in built-in hydraulic jack steel bracing or strutting arrangement;
3. when built-in hydraulic jack steel bracing or strutting arrangement reaches set axial force of the supports, be set to the equilibrium state of foundation ditch;
Oil cylinder oil pressure value when 4. making even the weighing apparatus state is as set thrust oil pressure value P, and the stroke value of getting hydraulic cylinder piston rod this moment is as set stroke value L, and corresponding bound safety value is set;
5. optical rangefinder is installed on the fixed bearing that steel supports, when equilibrium state, utilizes optical rangefinder to measure in the foundation ditch reference point, and corresponding bound safety value is set to all lateral separation X in hole and fore-and-aft distance Y;
6. three-dimensional laser scanner is installed on the fixed bearing that steel supports, when equilibrium state, utilizes three-dimensional laser scanner to measure distance z at the bottom of the hole of reference point in the end institute's survey scope of hole, and corresponding bound safety value is set;
7. import the real time data of oil cylinder working-pressure sensor, oil cylinder stroke sensor, optical rangefinder and three-dimensional laser scanner into data acquisition unit with data line, data acquisition unit is connected into computer by computer bus;
8. utilize collection, transmission, demonstration and the record of computer regulating real time data;
9. compared apart from Z in the instant thrust oil pressure value p of real time data, instant stroke value 1, foundation ditch lateral separation x, foundation ditch fore-and-aft distance y and hole end distance z and set thrust oil pressure value P, set stroke value L, foundation ditch lateral separation X, fore-and-aft distance Y and the end, hole, then report to the police as surpassing upper lower limit value.
And all gather the computer from the above data of surveying, by computer software respectively with same row, show with 3-D graphic with the axle power and the shift value of delegation.Under the situation of practice of construction, can check axle power and its shift value that each root hydraulic pressure supports as required arbitrarily, axle power change curve figure and the displacement curve that also can check each row or each row change figure, can also check simultaneously by the foundation ditch of three-dimensional laser scanner input computer and cheat the sedimentation at the end or the variation figure of protuberance.All graph curves are compared with the graph curve under the theoretical normal condition, if surpass the normalized curve alarm range, then report to the police.
Oil cylinder working-pressure sensor in the method step is connected with hydraulic power system, and described oil cylinder stroke sensor is installed in the piston rod of hydraulic jack.
Substantive distinguishing features that the present invention has and marked improvement, the present invention can detect the foundation pit support system axial force in real time and change also and can in time take measures automatically, replenish adjustment.Can monitor the soil pressure variation in real time and cheat all land movements and hole subsoil body protuberance.But the data three-dimensional visualization of surveying show and participate in control and management.To the data of gathering add up, prediction and analysis of Influential Factors, and can take corresponding measure, it is stable to keep the excavation face.Than existing foundation ditch monitoring method, the foundation ditch that realization is gathered automatically supports monitoring, can improve the degree and the safety of construction of automation greatly, and realizes the purpose of efficient construction when saving is artificial.
Description of drawings:
Fig. 1 is an excavation of foundation pit method for real-time monitoring schematic diagram
The specific embodiment
Now specifically set forth the specific embodiment of this invention in conjunction with Fig. 1,
The existing specific embodiment of 1 this invention of explanation in conjunction with the accompanying drawings: the access base pit engineering at certain subway station, the excavation of foundation pit area is for for 1224.2m
2, cutting depth is below ground 10.75m, uses three road Φ 609 * 16mm steel pipes to support, wherein two row, three row of foundation ditch topmost altogether the six roots of sensation support and used the controllable hydraulic steel to support that (Φ 609 * 16mm).The support horizontal spacing is 4500mm, and longitudinal pitch is 3300mm, and first row supports and the ground interplanar distance is 1200mm.
Adopted real-time detection method in this Excavation Process, be used for detecting hole periphery land movement variation, the peripheral soil pressure variation in hole and the hole subsoil body protuberance variation of Excavation Process, this method has comprised the following step:
1. support reference point at foundation ditch and set up built-in hydraulic jack steel bracing or strutting arrangement, this device is made up of hydraulic jack, outside seal cover, hydraulic power system and head ball pivot seat; One end and fixedly steel support and to be bolted to connection, the other end is supported on the foundation pit supporting construction; Hydraulic power system comprises hydraulic jack, closed tank, motor+pump.The hydraulic pressure support that to install in advance and debug with crane when reaching the Support Position along with the excavation of foundation ditch hangs onto support with the position of installing.Find accurately behind the strong point by the function software on the control computer by the piston rod elongation and will be connected fagging on the piston rod and act on and be fixed on enclosing purlin or act directly on the pit maintenance soil structure on the bracket in advance, make the axle power on this strong point reach design load by the control computer.Control software enters automatic compensation-packing state.
2. oil cylinder working-pressure sensor and oil cylinder stroke sensor are installed in built-in hydraulic jack steel bracing or strutting arrangement;
3. when built-in hydraulic jack steel bracing or strutting arrangement reaches set axial force of the supports, be set to the equilibrium state of foundation ditch;
Oil cylinder oil pressure value when 4. making even the weighing apparatus state is as set thrust oil pressure value P, and the stroke value of getting hydraulic cylinder piston rod this moment is as set stroke value L, and corresponding bound safety value is set;
5. optical rangefinder is installed on the fixed bearing that steel supports, when equilibrium state, utilizes optical rangefinder to measure in the foundation ditch reference point, and corresponding bound safety value is set to all lateral separation X in hole and fore-and-aft distance Y;
6. three-dimensional laser scanner is installed on the fixed bearing that steel supports, when equilibrium state, utilizes three-dimensional laser scanner to measure distance z at the bottom of the hole of reference point in the end institute's survey scope of hole, and corresponding bound safety value is set;
7. import the real time data of oil cylinder working-pressure sensor, oil cylinder stroke sensor, optical rangefinder and three-dimensional laser scanner into data acquisition unit with data line, data acquisition unit is connected into computer by computer bus;
8. utilize collection, transmission, demonstration and the record of computer regulating real time data;
9. compared apart from Z in the instant thrust oil pressure value p of real time data, instant stroke value 1, foundation ditch lateral separation x, foundation ditch fore-and-aft distance y and hole end distance z and set thrust oil pressure value P, set stroke value L, foundation ditch lateral separation X, fore-and-aft distance Y and the end, hole, then report to the police as surpassing upper lower limit value.
Excavation of foundation pit is connected with hydraulic power system in described oil cylinder working-pressure sensor in detecting in real time, and described oil cylinder stroke sensor is installed in the piston rod of hydraulic jack.
Set thrust oil pressure value P in the foundation ditch digging real-time detection method is taken as 200bar, and it is limited to up and down ± 15bar; The set stroke value L of oil cylinder is taken as 150mm, and its upper lower limit value is ± 5mm.
Oil cylinder working-pressure sensor in the foundation ditch digging real-time detection method, oil cylinder stroke sensor are all selected NI 6224 sensors for use.
The data acquisition unit of selecting for use in the foundation ditch digging real-time detection method adopts NI 6512 or NI 6511 modules.
Reference point is monitored the soil body protuberance at the end, hole to the hole shift value at the end, promptly reports to the police in case the measured displacements value exceeds the theory setting value.
And all gather the computer from the above data of surveying, by computer software respectively with same row, show with 3-D graphic with the axle power and the shift value of delegation.Under the situation of practice of construction, can check axle power and its shift value that each root hydraulic pressure supports as required arbitrarily, axle power change curve figure and the displacement curve that also can check each row or each row change figure, can also check simultaneously by the foundation ditch of three-dimensional laser scanner input computer and cheat the sedimentation at the end or the variation figure of protuberance.All graph curves are compared with the graph curve under the theoretical normal condition, if surpass the normalized curve alarm range, then report to the police.
Claims (5)
1. a foundation ditch digging real-time detection method is used for detecting hole periphery land movement variation, the peripheral soil pressure variation in hole and the hole subsoil body protuberance variation of Excavation Process, it is characterized in that having comprised the following step:
1. support reference point at foundation ditch and set up built-in hydraulic jack steel bracing or strutting arrangement, this device is made up of hydraulic jack, outside seal cover, hydraulic power system and head ball pivot seat; One end and fixedly steel support and to be bolted to connection, the other end is supported on the foundation pit supporting construction;
2. oil cylinder working-pressure sensor and oil cylinder stroke sensor are installed in built-in hydraulic jack steel bracing or strutting arrangement;
3. when built-in hydraulic jack steel bracing or strutting arrangement reaches set axial force of the supports, be set to the equilibrium state of foundation ditch;
Oil cylinder oil pressure value when 4. making even the weighing apparatus state is as set thrust oil pressure value P, and the stroke value of getting hydraulic cylinder piston rod this moment is as set stroke value L, and corresponding bound safety value is set;
5. optical rangefinder is installed on the fixed bearing that steel supports, when equilibrium state, utilizes optical rangefinder to measure in the foundation ditch reference point, and corresponding bound safety value is set to all lateral separation X in hole and fore-and-aft distance Y;
6. three-dimensional laser scanner is installed on the fixed bearing that steel supports, when equilibrium state, utilizes three-dimensional laser scanner to measure distance z at the bottom of the hole of reference point in the end institute's survey scope of hole, and corresponding bound safety value is set;
7. import the real time data of oil cylinder working-pressure sensor, oil cylinder stroke sensor, optical rangefinder and three-dimensional laser scanner into data acquisition unit with data line, data acquisition unit is connected into computer by computer bus;
8. utilize collection, transmission, demonstration and the record of computer regulating real time data;
9. compared apart from Z in the instant thrust oil pressure value p of real time data, instant stroke value 1, foundation ditch lateral separation x, foundation ditch fore-and-aft distance y and hole end distance z and set thrust oil pressure value P, set stroke value L, foundation ditch lateral separation X, fore-and-aft distance Y and the end, hole, then report to the police as surpassing upper lower limit value.
2. foundation ditch digging real-time detection method according to claim 1 is characterized in that described oil cylinder working-pressure sensor is connected with hydraulic power system, and described oil cylinder stroke sensor is installed in the piston rod of hydraulic jack.
3. foundation ditch digging real-time detection method according to claim 1 is characterized in that set thrust oil pressure value P is taken as 200bar, and it is limited to up and down ± 15bar; The set stroke value L of oil cylinder is taken as 150mm, and its upper lower limit value is ± 5mm.
4. foundation ditch digging real-time detection method according to claim 1 and 2 is characterized in that oil cylinder working-pressure sensor, oil cylinder stroke sensor all select the NI6224 sensor for use.
5. foundation ditch digging real-time detection method according to claim 1 is characterized in that the data acquisition unit of selecting for use adopts NI 6512 or NI 6511 modules.
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Cited By (23)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101853026A (en) * | 2010-05-21 | 2010-10-06 | 上海建工（集团）总公司 | Mobile diagnostic system device of deep foundation pit steel support axial-force adaptive system |
| CN102021919A (en) * | 2010-12-09 | 2011-04-20 | 东南大学 | Foundation pit wireless monitoring and alarming device and monitoring method |
| CN101644065B (en) * | 2009-08-25 | 2012-05-09 | 上海市第二市政工程有限公司 | Method for monitoring safety status of foundation pit |
| CN102561357A (en) * | 2010-12-17 | 2012-07-11 | 上海市电力公司 | Environmental control and protection method for excavation of large-scale ultra-deep foundation pit |
| CN103352483A (en) * | 2013-07-22 | 2013-10-16 | 广西土木勘察检测治理有限公司 | Deep foundation pit monitoring and early warning system |
| CN103806478A (en) * | 2014-01-15 | 2014-05-21 | 同济大学 | Method for measuring deformation of underground diaphragm wall |
| CN104631419A (en) * | 2015-01-16 | 2015-05-20 | 绍兴文理学院 | Foundation pit top horizontal displacement monitoring method |
| CN104879169A (en) * | 2015-05-18 | 2015-09-02 | 广州市建设工程质量安全检测中心 | Underground engineering and deep foundation pit unattended real-time monitoring early warning system and working method thereof |
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| CN105332379A (en) * | 2014-08-15 | 2016-02-17 | 上海骋浩机械有限公司 | Horizontal foundation pit supporting system |
| CN105446276A (en) * | 2014-08-15 | 2016-03-30 | 上海骋浩机械有限公司 | Foundation pit axial force monitoring compensation method |
| CN105696600A (en) * | 2015-05-26 | 2016-06-22 | 中铁十六局集团北京轨道交通工程建设有限公司 | Foundation pit supporting method capable of automatically controlling horizontal displacement of underground diaphragm wall |
| CN105839681A (en) * | 2016-05-13 | 2016-08-10 | 绍兴文理学院 | Method for monitoring axial force of foundation pit steel support by means of laser distance measuring sensor |
| CN107882041A (en) * | 2017-12-14 | 2018-04-06 | 上海天演建筑物移位工程股份有限公司 | Pattern foundation pit supporting structure intelligence support meanss and method |
| CN109191792A (en) * | 2018-08-15 | 2019-01-11 | 温州市城市资源开发工程有限公司 | Stop well construction between a kind of underground deep space of long-range wired control construction |
| CN109682416A (en) * | 2018-12-19 | 2019-04-26 | 中国地质大学（武汉） | Measure the experimental provision and method of the distribution of tunnel Water And Earth Pressures and tunnel deformation rule |
| CN110159346A (en) * | 2019-05-13 | 2019-08-23 | 辽宁工程技术大学 | Class rectangle tunnel Displacement forecast method based on non-uniform convergence mode |
| CN110965558A (en) * | 2019-12-19 | 2020-04-07 | 中南大学 | Large-span long and narrow foundation pit supporting method and supporting structure |
| CN110984256A (en) * | 2020-02-27 | 2020-04-10 | 上海建工集团股份有限公司 | Three-dimensional dynamic deep foundation pit micro-deformation remote real-time monitoring system and method |
| CN111501860A (en) * | 2020-04-23 | 2020-08-07 | 腾达建设集团股份有限公司 | Foundation pit enclosure deformation control device and system |
| CN111778984A (en) * | 2020-06-28 | 2020-10-16 | 苏州建设（集团）有限责任公司 | Construction method of deep foundation pit and intelligent detection system thereof |
| CN113802618A (en) * | 2021-08-23 | 2021-12-17 | 浙江工业大学 | Pit bottom uplift monitoring system |
| CN115233734A (en) * | 2022-09-20 | 2022-10-25 | 山西路桥市政工程有限公司 | Municipal tunnel construction method |
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| CN101644065B (en) * | 2009-08-25 | 2012-05-09 | 上海市第二市政工程有限公司 | Method for monitoring safety status of foundation pit |
| CN101853026A (en) * | 2010-05-21 | 2010-10-06 | 上海建工（集团）总公司 | Mobile diagnostic system device of deep foundation pit steel support axial-force adaptive system |
| CN102021919A (en) * | 2010-12-09 | 2011-04-20 | 东南大学 | Foundation pit wireless monitoring and alarming device and monitoring method |
| CN102561357B (en) * | 2010-12-17 | 2016-01-13 | 上海市电力公司 | Extensive ultra-deep foundation pit excavation environmental Kuznets Curves and guard method |
| CN102561357A (en) * | 2010-12-17 | 2012-07-11 | 上海市电力公司 | Environmental control and protection method for excavation of large-scale ultra-deep foundation pit |
| CN103352483A (en) * | 2013-07-22 | 2013-10-16 | 广西土木勘察检测治理有限公司 | Deep foundation pit monitoring and early warning system |
| CN103806478B (en) * | 2014-01-15 | 2015-12-30 | 同济大学 | A kind of measuring method of Deformation of Diaphragm Wall |
| CN103806478A (en) * | 2014-01-15 | 2014-05-21 | 同济大学 | Method for measuring deformation of underground diaphragm wall |
| CN105332379A (en) * | 2014-08-15 | 2016-02-17 | 上海骋浩机械有限公司 | Horizontal foundation pit supporting system |
| CN105446276A (en) * | 2014-08-15 | 2016-03-30 | 上海骋浩机械有限公司 | Foundation pit axial force monitoring compensation method |
| CN105446276B (en) * | 2014-08-15 | 2018-03-23 | 上海骋浩机械有限公司 | A kind of foundation ditch axle power monitors compensation method |
| CN104631419A (en) * | 2015-01-16 | 2015-05-20 | 绍兴文理学院 | Foundation pit top horizontal displacement monitoring method |
| CN104879169A (en) * | 2015-05-18 | 2015-09-02 | 广州市建设工程质量安全检测中心 | Underground engineering and deep foundation pit unattended real-time monitoring early warning system and working method thereof |
| CN104879169B (en) * | 2015-05-18 | 2018-08-28 | 广州市建设工程质量安全检测中心 | Underground engineering and the unattended real time monitoring early warning system of deep basal pit and its working method |
| CN105696600A (en) * | 2015-05-26 | 2016-06-22 | 中铁十六局集团北京轨道交通工程建设有限公司 | Foundation pit supporting method capable of automatically controlling horizontal displacement of underground diaphragm wall |
| CN105220718A (en) * | 2015-10-26 | 2016-01-06 | 青岛理工大学 | Method for pre-determining influence of building construction on adjacent existing tunnel |
| CN105839681A (en) * | 2016-05-13 | 2016-08-10 | 绍兴文理学院 | Method for monitoring axial force of foundation pit steel support by means of laser distance measuring sensor |
| CN107882041A (en) * | 2017-12-14 | 2018-04-06 | 上海天演建筑物移位工程股份有限公司 | Pattern foundation pit supporting structure intelligence support meanss and method |
| CN109191792A (en) * | 2018-08-15 | 2019-01-11 | 温州市城市资源开发工程有限公司 | Stop well construction between a kind of underground deep space of long-range wired control construction |
| CN109682416A (en) * | 2018-12-19 | 2019-04-26 | 中国地质大学（武汉） | Measure the experimental provision and method of the distribution of tunnel Water And Earth Pressures and tunnel deformation rule |
| CN110159346B (en) * | 2019-05-13 | 2020-07-31 | 辽宁工程技术大学 | Quasi-rectangular tunnel earth surface deformation prediction method based on non-uniform convergence mode |
| CN110159346A (en) * | 2019-05-13 | 2019-08-23 | 辽宁工程技术大学 | Class rectangle tunnel Displacement forecast method based on non-uniform convergence mode |
| CN110965558A (en) * | 2019-12-19 | 2020-04-07 | 中南大学 | Large-span long and narrow foundation pit supporting method and supporting structure |
| CN110984256B (en) * | 2020-02-27 | 2020-07-03 | 上海建工集团股份有限公司 | Three-dimensional dynamic deep foundation pit micro-deformation remote real-time monitoring system and method |
| CN110984256A (en) * | 2020-02-27 | 2020-04-10 | 上海建工集团股份有限公司 | Three-dimensional dynamic deep foundation pit micro-deformation remote real-time monitoring system and method |
| CN111501860A (en) * | 2020-04-23 | 2020-08-07 | 腾达建设集团股份有限公司 | Foundation pit enclosure deformation control device and system |
| CN111778984A (en) * | 2020-06-28 | 2020-10-16 | 苏州建设（集团）有限责任公司 | Construction method of deep foundation pit and intelligent detection system thereof |
| CN111778984B (en) * | 2020-06-28 | 2021-10-29 | 苏州建设（集团）有限责任公司 | Construction method of deep foundation pit and intelligent detection system thereof |
| CN113802618A (en) * | 2021-08-23 | 2021-12-17 | 浙江工业大学 | Pit bottom uplift monitoring system |
| CN113802618B (en) * | 2021-08-23 | 2022-10-11 | 浙江工业大学 | Pit bottom uplift monitoring system |
| CN115233734A (en) * | 2022-09-20 | 2022-10-25 | 山西路桥市政工程有限公司 | Municipal tunnel construction method |
| CN115233734B (en) * | 2022-09-20 | 2022-11-29 | 山西路桥市政工程有限公司 | Municipal tunnel construction method |
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