CN203759859U - Deep foundation pit deformation wireless test device and deep foundation pit deformation test system - Google Patents

Deep foundation pit deformation wireless test device and deep foundation pit deformation test system Download PDF

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Publication number
CN203759859U
CN203759859U CN201420151709.7U CN201420151709U CN203759859U CN 203759859 U CN203759859 U CN 203759859U CN 201420151709 U CN201420151709 U CN 201420151709U CN 203759859 U CN203759859 U CN 203759859U
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China
Prior art keywords
deformation
foundation pit
processor
test
information
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CN201420151709.7U
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Chinese (zh)
Inventor
王建松
刘庆元
廖小平
朱本珍
高和斌
黄波
熊晋
李龙飞
邵国强
聂彪
潘孝城
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Northwest Research Institute Co Ltd of CREC Shenzhen South Branch
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Northwest Research Institute Co Ltd of CREC Shenzhen South Branch
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Priority to CN201420151709.7U priority Critical patent/CN203759859U/en
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Abstract

The utility model discloses a deep foundation pit deformation wireless test device and a deep foundation pit deformation test system. The deep foundation pit deformation wireless test device comprises a plurality of rock-soil deformation sensing sensors and at least one information collecting terminal, wherein the plurality of the rock-soil deformation sensing sensors are used for collecting inclination angle information of the wall of the foundation pit, and are arranged on the wall of the foundation pit from top to bottom at intervals; the information collecting terminal is used for receiving inclination angle information, which is collected by the rock-soil deformation sensing sensor, of the wall of the foundation pit; the information collecting terminal is in wireless connection with the plurality of rock-soil deformation sensing sensors. According to the deep foundation pit deformation wireless test device disclosed by the utility model, inclination or horizontal deformation displacement of the wall of the foundation pit is obtained by calculating inclination angle information of the wall of the foundation pit, which is detected by the rock-soil deformation sensing sensor, manual measurement is replaced by precise measurement of an electronic instrument, convenient and quick high-precision deep foundation pit deformation detection is realized; moreover, while being needed, the test device further can ensure real-time monitoring and timely pre-warning.

Description

A kind of deformation of deep excavation wireless test device and test macro
Technical field
The utility model relates to Geotechnical Engineering, relates in particular to a kind of deformation of deep excavation wireless test device and test macro.
Background technology
In a lot of Industrial Engineering, urban construction, all need to dig deep basal pit, set up ground to facilitate, the slump but the hole wall of foundation ditch easily collapses, need to monitor the distortion of Foundation Pit wall.In the prior art, generally adopt transit carry out the observation of horizontal shift and adopt tiltmeter to carry out deep hole displacement monitoring; The method that horizontal displacement observation is commonly used has collimation line method, by reference point being set at two ends, sets up a datum line, the side-play amount of directly reading each point with steel ruler; But the method requires higher to sighting condition; Other minor angle method in addition, polar method etc.; Deep hole displacement monitoring need to be carried out vertical drilling by certain distance outside foundation ditch, in hole, monitors, and cost is higher, also requires to have certain site condition.But these methods have following general problem, need exactly manual operation, waste time and energy; precision be also difficult to ensure, and these proving installations be easy to damage, be difficult to protection; measure and all need to carry out in advance various preliminary work each time, these methods are difficult to realize real-time monitoring simultaneously.
Utility model content
The technical problems to be solved in the utility model is to overcome the deficiency that above-mentioned prior art exists, and a kind of deformation of deep excavation wireless test device and test macro are proposed, detect conveniently to realize high-precision deformation of deep excavation, and realize when needed Real-Time Monitoring.
For solving the problems of the technologies described above, the utility model proposes a kind of deformation of deep excavation wireless test device, it comprises: the ground distortion detecting sensor of the obliquity information of the hole wall of the described foundation ditch of multiple collections, it is from top to bottom disposed on the hole wall of foundation ditch; The information acquisition terminal of the obliquity information of the hole wall of the described foundation ditch that the described ground distortion of at least one reception detecting sensor gathers, described information acquisition terminal and the wireless connections of described multiple ground distortion detecting sensor.
The utility model also provides a kind of deformation of deep excavation test macro, described deformation of deep excavation test macro comprises at least one above-mentioned deformation of deep excavation wireless test device, described deformation of deep excavation wireless test system also comprises: data processing terminal, it is by least one information acquisition terminal described in wireless connections, receive the obliquity information of described information acquisition terminal, and obtain the deformation information of described foundation ditch.
Preferably, ground distortion detecting sensor comprises: inclination angle sensing chip, in order to produce the simulating signal of tilt data; Signal conversion module, connects described inclination angle sensing chip, in order to convert the simulating signal of the tilt data of described inclination angle sensing chip to digital signal; Processor, described processor connects described signal conversion module, and the digital signal converting in order to signal conversion module described in reception & disposal is processed the described digital signal receiving, and described processor comprises processor body and clock unit; Data transmission module, described data transmission module connects described processor, and the digital signal of crossing in order to reception & disposal from processor is also given described digital data transmission extraneous; Battery, described battery is in order to provide electric power to described inclination angle sensing chip, signal conversion module, processor and data transmission module; Wherein, described processor comprises processor body and clock unit, described clock unit is by described battery continued power, and the electric power supply to described inclination angle sensing chip, signal conversion module, processor body and data transmission module alternately opened or close by battery with setting-up time interval described in described clock unit control.
Preferably, deformation of deep excavation test macro also comprises alarm, and described data processing terminal meets when pre-conditioned at described deformation information, and the signal that gives the alarm is given described alarm, makes its warning.
Preferably, hole wall is provided with multiple fixed legs, and described ground distortion detecting sensor is fixed on the hole wall of described foundation ditch by fixed leg, and the described multiple fixed legs that are arranged in same foundation ditch are lined up at least one straight line at vertical direction.
Compared with prior art, the beneficial effects of the utility model comprise: the obliquity information that the utility model is out of shape detecting sensor detection hole wall by ground calculates the deformation displacement of cheating wall again, rely on the measurement of accurate electronic device to replace manual measurement, simultaneously testing sensor volume is little and without any cable work, convenient difficult infringement is installed, be applicable to field work environment, realize conveniently high precision deformation of deep excavation and detected, and can also ensure when needed real-time monitoring.
Brief description of the drawings
Fig. 1 is the fundamental diagram of the deformation of deep excavation test macro of the utility model embodiment.
Fig. 2 is the structural representation of the ground distortion detecting sensor of the utility model embodiment.
Fig. 3 is the process flow diagram of the deformation of deep excavation radio test method of the utility model embodiment.
Fig. 4 is the schematic diagram calculation of the sex change information of the utility model embodiment.
Brief description of the drawings: ground distortion detecting sensor 1, information acquisition terminal 2, data processing terminal 3, foundation ditch 4, hole wall 41 and fixed leg 42.
Embodiment
In order to further illustrate principle of the present utility model and structure, now by reference to the accompanying drawings preferred embodiment of the present utility model is elaborated.
Refer to Fig. 1 and Fig. 2, the utility model provides a kind of deformation of deep excavation test macro, described deformation of deep excavation test macro comprises at least one deformation of deep excavation wireless test device and data processing terminal 3, and deformation of deep excavation wireless test device comprises multiple ground distortion detecting sensor 1, at least one information acquisition terminal 2 and alarms 4.
Ground distortion detecting sensor 1, it is from top to bottom disposed on multiple ground distortion detecting sensor 1 on the hole wall 41 of foundation ditch 4, in order to gather the obliquity information of hole wall 41 of described foundation ditch 4.In the process of output data, ground distortion detecting sensor 1 can attach independent numbering information separately, to facilitate the difference between multiple ground distortion detecting sensors 1.In the present embodiment, the setting space of described ground distortion detecting sensor 1 is specifically determined according to the actual state of rock-soil layer.The length of spacing can affect precision, and spacing more short precision is higher, but the short meeting of spacing causes cost to improve, so can ground distortion detecting sensor 1 be set in the yielding position of appearance according to the situation of rock-soil layer, arranges less in other position more.In other embodiments, according to the difference that precision is needed, can adopt different spacing settings, for example 0.5m, 3m or 5m etc.In the present embodiment, described hole wall 41 is provided with multiple fixed legs 42, described ground distortion detecting sensor 1 is fixed on the hole wall 41 of described foundation ditch 4 by fixed leg 42, and the described multiple fixed legs 42 that are arranged in same foundation ditch 4 are lined up at least one straight line at vertical direction.Ground distortion detecting sensor 1 is arranged on mode on the wall 41 of hole can be had a variety ofly, for example, hammered into hole wall 41 or directly digged pit and ground is out of shape to detecting sensor 1 imbeds etc. at hole wall 4 by screw.And the quantity of ground distortion detecting sensor 1 can increase along with excavation progress, only need on the hole wall 41 newly digging out, continue to install ground distortion detecting sensor 1.After finishing using, ground can also be out of shape to detecting sensor 1 and pull down and reuse, add the cheap of ground distortion detecting sensor 1, cost-saving on can certain degree.
In the present embodiment, ground distortion detecting sensor 1 comprises signal conversion module 11, processor 12, data transmission module 13, inclination angle sensing chip 14 and battery 15.
Inclination angle sensing chip 14, in order to produce the simulating signal of tilt data.
Signal conversion module 11, connects described inclination angle sensing chip 14, in order to convert the simulating signal of the tilt data of described inclination angle sensing chip 14 to digital signal.It is simulating signal that inclination angle sensing chip 14 detects the tilt data signal obtaining, and processor None-identified, so need to convert simulating signal to digital signal.In the present embodiment, signal conversion module 11 is 16 ADC digital to analog converters, and in other embodiments, signal conversion module 11 can adopt the digital to analog converter of other figure place as required, for example 32 or 24 etc.
Processor 12, connect described signal conversion module 11, the digital signal converting in order to signal conversion module described in reception & disposal 11, processes the described digital signal receiving, and described processor 12 comprises processor body (not shown) and clock unit (not shown).The effect of processor 12 is to process to facilitate data transmission module 13 to transmit to the external world digital signal after conversion.In the present embodiment, what processor 12 used is single-chip microcomputer, in other embodiments, can need to adopt according to the needs of deal with data or other processor 12 of other type.Described clock unit is by described battery 15 continued powers, and the electric power supply to described inclination angle sensing chip 14, signal conversion module 11, processor body and data transmission module 13 alternately opened or close by battery 15 with setting-up time interval described in described clock unit control.In the time adopting the mode regularly detecting, because the work of ground distortion detecting sensor 1 does not many times need uninterruptedly carry out all day, so starting ground distortion detecting sensor 1 by clock unit measures, receives instruction or transmit the operations such as data to the external world on time, after end of operation, close ground distortion detecting sensor 1, can effectively reduce like this power consumption of ground distortion detecting sensor 1, so just can meet working long hours of ground distortion detecting sensor 1 by battery 15.
Data transmission module 13, connects described processor 12, in order to reception & disposal is crossed from processor 12 digital signal and described digital data transmission is given extraneous.Data transmission module 13 can be that wireless transport module can be also wired module, in the present embodiment, the obliquity information that data transmission module 13 adopts wireless mode that ground is out of shape to the hole wall 41 of the described foundation ditch 4 of detecting sensor 1 is transferred to information acquisition terminal 2.
Battery 15, in order to provide electric power to described inclination angle sensing chip 14, signal conversion module 11, processor 12 and data transmission module 13.Wherein, described clock unit is by described battery 15 continued powers, and the electric power supply to described inclination angle sensing chip 15, signal conversion module 11, processor body and data transmission module 13 alternately opened or close by battery 15 with setting-up time interval described in described clock unit control.In other embodiments, while needing to measure in real time, also can adopt the mode of circumscripted power line to power, to measure in real time.
Information acquisition terminal 2, by wireless connections, is out of shape the obliquity information of the hole wall 41 of the described foundation ditch 4 that detecting sensor 1 gathers with described multiple ground distortion detecting sensors 1 in order to receive described ground.The effect of information acquisition terminal 2 is that the information that multiple ground distortion detecting sensors 1 are collected gathers, and operating personnel can directly calculate the situation of the horizontal shift of foundation ditch 4 when needed again by 2 information extractions of instrument link information acquisition terminal.In the time that data processing terminal 3 is set, multiple information acquisition terminals 2 can pass to data processing terminal 3 by wired or wireless mode by the obliquity information of the foundation ditch gathering 4, and at data processing terminal, 3 places carry out unified processing and calculating.
Data processing terminal 3, by least one information acquisition terminal 2 described in wireless connections, in order to receive the obliquity information of described information acquisition terminal 2, and obtains the deformation information of described foundation ditch 4.Because data processing terminal 3 has received the obliquity information of multiple information acquisition terminals 2, staff can monitor at data processing terminal 3 places the deformation information of multiple foundation ditches 4 in real time.
Alarm 4, data processing terminal 3 meets when pre-conditioned at described deformation information, and the signal that gives the alarm is given described alarm 4, makes its warning.The amount of the horizontal shift of the pre-conditioned hole wall that can be foundation ditch 4, also can adopt other numerical value as required.
Refer to Fig. 3, the utility model also provides a kind of deformation of deep excavation radio test method, comprising:
Step a: multiple ground distortion detecting sensors are from top to bottom disposed on the hole wall of foundation ditch.In the present embodiment, the equally spaced setting of described ground distortion detecting sensor 1, described equally spaced spacing is 1m ~ 2m.
Step b: regularly or in real time measure and adopt wireless mode to export the obliquity information of the hole wall of described foundation ditch by described multiple ground distortion detecting sensors.Regularly still can synchronously switch as required in real time, only need to set for clock unit mentioned above accordingly.In the time of output information, can attach ground distortion detecting sensor number information independently separately, to facilitate difference.
Step b1: receive the obliquity information of the hole wall of the foundation ditch of described multiple ground distortion detecting sensor output, and gather output.The effect of this step is that the data of the multiple ground distortion detecting sensor collection in same foundation ditch are gathered, convenient unified processing.In the present embodiment, transmission mode can adopt wired and wireless two kinds, and operating personnel can select voluntarily as required.Wireless mode can adopt the mode of GPRS, can realize like this remote monitoring.Difference as required also can not carried out the transfer of step b1, and directly data is sent to data processing terminal 3.
Step c: the deformation information that obtains described foundation ditch by the obliquity information of each described ground distortion detecting sensor.Refer to Fig. 4, it in figure, is the distortion signal between two ground distortion detecting sensors 1, a limit is the original position of wall 41, hole, b limit is the position after hole wall 41 deforms, θ is the inclination angle that wall 41 distortion in hole produce afterwards, because the length on a limit is that the spacing that ground distortion detecting sensor 1 arranges is set is at the beginning the L1 in Fig. 1, L2 or L3 etc., think known numerical value, θ is the numerical value that ground distortion detecting sensor can be measured, therefore both can obtain the distance of the length horizontal shift that the hole wall 41 between this two ground distortion detecting sensor 1 produces on c limit by simple trigonometric function, the horizontal shift that can obtain whole hole wall is added and subtracted in the horizontal shift calculating by which between by multiple ground distortion detecting sensors 1.
Steps d: the deformation curve that obtains the hole wall of foundation ditch by the deformation information of foundation ditch.The object of this step is the distortion situation for hole wall that can the whole foundation ditch of more intuitive understanding.Also can not draw deformation curve according to actual needs, directly judge according to deformation information.
Step e: when deformation information meets when pre-conditioned, give the alarm.In the present embodiment, warning can adopt audible alarm, the modes such as light alarm or both combinations.
Below taking the present embodiment as example describes in detail principle of work of the present utility model.
In the time of Real-Time Monitoring, multiple ground distortion detecting sensors 1 by the obliquity information real-time Transmission of hole wall 41 to information acquisition terminal 2, multiple information acquisition terminals 2 are transferred to data processing terminal 3 again, data processing terminal 3 receives data and calculates, and operating personnel only need to can learn at data processing terminal 3 places the deformation information of each foundation ditch 4.
In the time of periodic monitoring, described in clock unit control in ground distortion detecting sensor 1, the electric power supply to described inclination angle sensing chip 15, signal conversion module 11, processor body and data transmission module 13 alternately opened or closes by battery 15 with setting-up time interval, when unlatching, detect the obliquity information of the hole wall 41 of foundation ditch 4, after completing, close, follow-up is equally that obliquity information is passed to information acquisition terminal 2.
Owing to adopting the data transfer mode of wireless telecommunications, do not need to arrange the situation that cable is applicable to foundation ditch periphery more.
In sum, the obliquity information that the utility model is out of shape detecting sensor detection hole wall by ground calculates the deformation displacement of cheating wall again, rely on the measurement of accurate electronic device to replace manual measurement, simultaneously testing sensor volume is little and without any cable work, convenient difficult infringement is installed, be applicable to field work environment, realized conveniently high precision deformation of deep excavation and detected, and can also ensure when needed real-time monitoring.
The foregoing is only better possible embodiments of the present utility model, and unrestricted protection domain of the present utility model.Every equivalent structure or conversion of equivalent flow process that utilizes the utility model instructions and accompanying drawing content to do, or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.

Claims (5)

1. a deformation of deep excavation wireless test device, is characterized in that, comprising:
The ground distortion detecting sensor of the obliquity information of the hole wall of the described foundation ditch of multiple collections, it is from top to bottom disposed on the hole wall of foundation ditch;
The information acquisition terminal of the obliquity information of the hole wall of the described foundation ditch that the described ground distortion of at least one reception detecting sensor gathers, described information acquisition terminal and the wireless connections of described multiple ground distortion detecting sensor.
2. a deformation of deep excavation wireless test system, it is characterized in that, comprise at least one wireless test of deformation of deep excavation as described in claim 1 device, described deformation of deep excavation wireless test system also comprises: data processing terminal, it is by least one information acquisition terminal described in wireless connections, receive the obliquity information of described information acquisition terminal, and obtain the deformation information of described foundation ditch.
3. deformation of deep excavation wireless test system according to claim 2, is characterized in that, described ground distortion detecting sensor comprises:
Inclination angle sensing chip, in order to produce the simulating signal of tilt data;
Signal conversion module, connects described inclination angle sensing chip, in order to convert the simulating signal of the tilt data of described inclination angle sensing chip to digital signal;
Processor, described processor connects described signal conversion module, and the digital signal converting in order to signal conversion module described in reception & disposal is processed the described digital signal receiving;
Data transmission module, described data transmission module connects described processor, and the digital signal of crossing in order to reception & disposal from processor is also given described digital data transmission extraneous;
Battery, described battery is in order to provide electric power to described inclination angle sensing chip, signal conversion module, processor and data transmission module;
Wherein, described processor comprises processor body and clock unit, described clock unit is by described battery continued power, and the electric power supply to described inclination angle sensing chip, signal conversion module, processor body and data transmission module alternately opened or close by battery with setting-up time interval described in described clock unit control.
4. deformation of deep excavation wireless test system according to claim 2, it is characterized in that, described deformation of deep excavation test macro also comprises alarm, and described data processing terminal meets when pre-conditioned at described deformation information, the signal that gives the alarm is given described alarm, makes its warning.
5. deformation of deep excavation wireless test system according to claim 2, it is characterized in that, described hole wall is provided with multiple fixed legs, described ground distortion detecting sensor is fixed on the hole wall of described foundation ditch by described fixed leg, and the multiple fixed legs that are arranged in same foundation ditch are lined up at least one straight line at vertical direction.
CN201420151709.7U 2014-03-31 2014-03-31 Deep foundation pit deformation wireless test device and deep foundation pit deformation test system Expired - Fee Related CN203759859U (en)

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104372783A (en) * 2014-10-24 2015-02-25 中铁二十四局集团有限公司 High-sensitivity foundation pit side wall pressure testing device
CN104713519A (en) * 2015-03-03 2015-06-17 江西飞尚科技有限公司 Bridge structure safety detection method based on wireless intelligent sensor
CN104952226A (en) * 2014-03-31 2015-09-30 中铁西北科学研究院有限公司深圳南方分院 Wireless testing method, testing device and testing system for deformation of deep pit
CN106033637A (en) * 2015-03-16 2016-10-19 中铁西北科学研究院有限公司深圳南方分院 Cable-free independent long-term working landslide hazard landslide hazard monitoring early warning method and system
CN108517872A (en) * 2018-04-10 2018-09-11 成都柏森松传感技术有限公司 A kind of measurement method of foundation pit deformation
CN110158673A (en) * 2019-06-11 2019-08-23 黄河交通学院 A kind of foundation pit deformation real-time monitoring system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104952226A (en) * 2014-03-31 2015-09-30 中铁西北科学研究院有限公司深圳南方分院 Wireless testing method, testing device and testing system for deformation of deep pit
CN104372783A (en) * 2014-10-24 2015-02-25 中铁二十四局集团有限公司 High-sensitivity foundation pit side wall pressure testing device
CN104713519A (en) * 2015-03-03 2015-06-17 江西飞尚科技有限公司 Bridge structure safety detection method based on wireless intelligent sensor
CN106033637A (en) * 2015-03-16 2016-10-19 中铁西北科学研究院有限公司深圳南方分院 Cable-free independent long-term working landslide hazard landslide hazard monitoring early warning method and system
CN108517872A (en) * 2018-04-10 2018-09-11 成都柏森松传感技术有限公司 A kind of measurement method of foundation pit deformation
CN108517872B (en) * 2018-04-10 2020-04-28 西南交通大学 Method for measuring foundation pit deformation
CN110158673A (en) * 2019-06-11 2019-08-23 黄河交通学院 A kind of foundation pit deformation real-time monitoring system

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