CN205712222U - A kind of monitoring device of margin of foundation pit Vertical Settlement - Google Patents

Abstract

The utility model discloses the monitoring device of a kind of margin of foundation pit Vertical Settlement, including measurement pier, range-measurement system, datum mark and data handling system；Described measurement pier is to be embedded in distance foundation pit side-wall the measurement marker elevating above the soil；Described range-measurement system, for measuring described deformation measuring system summit relative to the displacement of range-measurement system and the distance measuring described datum mark and range-measurement system；Described datum mark is for measuring the displacement relative to himself reset condition for the described range-measurement system；Described data handling system, for the data receiving described deformation measuring system and described range-measurement system monitors, and processes the data receiving, margin of foundation pit Vertical Settlement is transferred to user terminal.The utility model achieves the real-time monitoring of margin of foundation pit Vertical Settlement, it is not necessary to carry out manual measurement, the enforcement measurement of automation, measurement is accurately, can truly reflect the sedimentation situation of foundation ditch, and reduce further monitoring cost, improve the ageing of Monitoring Data and reliability.

Description

A kind of monitoring device of margin of foundation pit Vertical Settlement

Technical field

The utility model belongs to technical field of building construction, is specifically related to the monitoring dress of a kind of margin of foundation pit Vertical Settlement Put.

Background technology

Population is inevasible problem to the centralization in city, the further demand in space must not be also at once faced by Problem, but the advantage expanding beyond city after certain limit of city size will be by the various problem such as environment, traffic institute Offsetting, therefore scale and the area in city must be controlled, therefore can only be by the three-dimensional in city, and heavenwards and underground are striven Take space, relate in one aspect to skyscraper, be on the other hand then the exploitation of the underground space.

The exploitation of the underground space belong to state fundamental construction, are an important people's livelihood engineerings, are also that country is important Infrastructure project.But in recent years, during subterranean excavation excavation, security incident in various degree occurs repeatedly, Beat alarm bell to also working the project security monitoring of foundation ditch and Underground Engineering Excavation while people life property loss.

The Vertical Settlement of margin of foundation pit is foundation ditch and the important indicator of underground engineering stability, but is widely used at present full station Instrument and level meter carry out manual measurement, reading, and house data carries out reporting Monitoring Data after processing again, and data are delayed substantially；If Use total powerstation robot automatically to measure, but mean the several times growth of monitoring expense.

Utility model content

Automaticity is low, labour intensity is high, test data process stagnant in order to solve foundation pit deformation monitoring for the utility model The technical problem such as rear, provides a kind of automaticity high, the monitoring device of the margin of foundation pit Vertical Settlement that can monitor in real time.

In order to solve the problems referred to above, the utility model is achieved by techniques below scheme:

The monitoring device of margin of foundation pit Vertical Settlement described in the utility model, including measurement pier, range-measurement system, datum mark and Data handling system；

Described measurement pier is to be embedded in distance foundation pit side-wall the measurement marker elevating above the soil；

Described range-measurement system, for measure described measurement pier and range-measurement system distance and measure described datum mark with The distance of range-measurement system；

Described datum mark, is arranged far from the ground of described foundation pit side-wall side；

Described data handling system, is used for receiving the data that described range-measurement system monitors, and processes the data receiving, Margin of foundation pit Vertical Settlement is transferred to user terminal.

Further, described measurement pier is embedded in the soil body of foundation pit side-wall 0.3m～0.5m and the 0.5m that elevates above the soil ～1m.

Further, described range-measurement system includes the speculum being arranged on measurement pier top end and datum mark, is arranged on ground Support bar on face, some laser range finders and wireless communication module；

Described laser range finder is disposed on described support bar successively；

Described laser range finder is connected with described data handling system communication by described wireless communication module.

Further, described laser range finder is three, including two the first laser range finders and second Laser Measuring Distance meter, the first laser range finder is for the distance of measurement pier top end and corresponding laser range finder；

Described second laser range finder is for measuring the distance of this laser range finder and datum mark；

When described support bar and measurement pier original state, the plane at place is perpendicular to foundation pit side-wall.

Further, described laser range finder is arranged on described support bar by automatic align structures；Described automatically right The laser that described first laser range finder of quasi-structure regulation sends is vertical with the speculum on measurement pier；Described automatic align structures Regulate the laser that described second laser range finder sends vertical with the speculum on datum mark.

Further, described datum mark totally three, being arranged on the distance with foundation pit side-wall is foundation depth 3 times～5 times Position, and three datum mark not conllinear.

Further, described data handling system includes input equipment, data storage, output equipment, controller；

Described input equipment, for the data receiving deformation measuring system and range-measurement system detects；

Described data storage, for storing the data receiving；

Described controller, the data that Treatment Analysis receives, obtain margin of foundation pit Vertical Settlement data；

The margin of foundation pit Vertical Settlement data obtaining are flowed to user terminal by described output equipment.

The monitoring device of margin of foundation pit Vertical Settlement described in the utility model, in use according to the following steps:

S1, at foundation pit side-wall 0.30m～0.50m pre-buried measurement pier, described measurement pier elevates above the soil 0.5m～1m.

S2, support bar is set in the position of the distance foundation depth 1 times～1.5 times with foundation pit side-wall, in the present embodiment Support bar distance foundation depth 1.5 times, arranges three rangefinders on support bar；And arrange and rangefinder on the top of measurement pier Object of reference.

S3, rangefinder monitor the range data between corresponding object of reference, are transmitted to data process by wireless module System.

S4, data handling system process and analyze the data receiving, and send data processed result to user terminal.

S5, described rangefinder are laser range finder, and described object of reference is for being arranged on described measurement pier top end and datum mark The speculum arranging, described support bar is arranged at intervals with three laser range finders.

S6, the coordinate of three datum marks are designated as { x respectively₁,y₁,z₁}、{x₂,y₂,z₂And { x₃,y₃,z₃, measurement the respectively Dual-laser rangefinder is designated as d to the initial distance of three datum marks₁、d₂And d₃If the second laser range finder initial coordinate is { x₀, y₀,z₀}；

Controller is by following Mathematical Modeling and x₀、x₁、x₂And x₃Between magnitude relationship, calculate at the beginning of the second laser range finder Beginning coordinate:

$\left\{\begin{array}{c}{(x_0-x_1)}^2+{(y_0-y_1)}^2+{(z_0-z_1)}^2=d_1^2\\ {(x_0-x_2)}^2+{(y_0-y_2)}^2+{(z_0-z_2)}^2=d_2^2\\ {(x_0-x_3)}^2+{(y_0-y_3)}^2+{(z_0-z_3)}^2=d_3^2\end{array}\right.---\left(1\right)$

In t, measure the second laser range finder respectively to distance d of three datum marks₁(t)、d₂(t) and d₃(t), if Now the second laser range finder coordinate is { x (t), y (t), z (t) }.

Controller, by following Mathematical Modeling and above-mentioned x coordinate magnitude relationship, calculates t the second laser range finder and sits Mark:

$\left\{\begin{array}{c}{\left(x\right(t)-x_1)}^2+{\left(y\right(t)-y_1)}^2+{\left(z\right(t)-z_1)}^2=d_1^2\left(t\right)\\ {\left(x\right(t)-x_2)}^2+{\left(y\right(t)-y_2)}^2+{\left(z\right(t)-z_2)}^2=d_2^2\left(t\right)\\ {\left(x\right(t)-x_3)}^2+{\left(y\right(t)-y_3)}^2+{\left(z\right(t)-z_3)}^2=d_3^2\left(t\right)\end{array}\right.---\left(2\right)$

The height difference H of two the first laser range finders of measurement, and it is anti-to correspondence to measure two the first laser range finders respectively Penetrate the initial distance s of mirror₀₁And s₀₂(s₀₁<s₀₂)；

T during monitoring, measures distance s of two laser range finders and reflective mirror₁(t) and s₂(t),

Controller calculates foundation ditch deep layer earth's surface Vertical Settlement by following Mathematical Modeling:

$\mathrm{\&Delta;}h\left(t\right)=\frac{\&lsqb;s_2^2\left(t\right)-s_1^2\left(t\right)\&rsqb;-\&lsqb;s_{20}^2\left(t\right)-s_{10}^2\left(t\right)\&rsqb;}{2H}+h\&lsqb;cos\mathrm{\&theta;}\left(t\right)-1\&rsqb;+z\left(t\right)-z_0,---\left(3\right)$

Compared with prior art, the beneficial effects of the utility model are:

The soil body near foundation pit side-wall for the utility model pre-buried measurement pier, in conjunction with the position in laser range finder measurement pier top portion Moving, by a series of Mathematical Modeling, being accurately obtained margin of foundation pit Vertical Settlement, measuring accuracy is high, and automaticity is high, goes forward side by side One step reduces monitoring cost, improves the ageing of Monitoring Data and reliability.

Brief description

Below in conjunction with the accompanying drawings detailed description of the invention of the present utility model is described in further detail, wherein:

Fig. 1 is the structural representation of the monitoring device of margin of foundation pit Vertical Settlement described in the utility model；

Detailed description of the invention

Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is illustrated, it will be appreciated that described herein excellent Select embodiment to be merely to illustrate and explain the utility model, being not used to limit the utility model.

As it is shown in figure 1, the monitoring device of margin of foundation pit Vertical Settlement described in the utility model, including the 1st, measurement pier finds range system System the 2nd, some datum marks 3 and data handling system 8.

Described measurement pier 1 is embedded in the soil body of foundation pit side-wall certain distance and the 0.5m～1m that elevates above the soil, described Measurement pier 1 is as the marker of measurement margin of foundation pit sedimentation.

Described range-measurement system 2 is used for measuring the distance of described measurement pier 1 and range-measurement system 2, and measures described datum mark 3 Distance with range-measurement system 2.

Described datum mark 3 is arranged far from the ground of foundation pit side-wall side.In the present embodiment, described datum mark 3 is three Individual, it is not provided with on the same line, and the distance of described datum mark 3 and foundation pit side-wall is 3 times～5 times of foundation depth.This reality Executing in example, the distance of described datum mark 3 and foundation pit side-wall is 4 times of foundation depth.

Described data handling system 8, is used for receiving the data that described range-measurement system 2 monitors, and processes the number receiving According to the Vertical Settlement of margin of foundation pit is transferred to user terminal.

Described range-measurement system 2 includes being arranged on the speculum of measurement pier 1 and datum mark 3 and the 11st, is arranged on ground support Bar, the some laser range finders being arranged on support bar, automatic align structures 13 and wireless communication module 14.Described automatically right Quasi-structure 13 is used for connecting described laser range finder and support bar, and laser range finder described in the present embodiment is three, including two Individual first laser range finder 12 and second laser range finder 15, described automatic align structures 13 can adjust described first laser Rangefinder 12 so that it is the laser sending is vertical with the speculum 11 on test pier 1, and described automatic align structures 13 can adjust second The laser that laser range finder 15 sends is vertically arranged with the speculum 11 on datum mark, propping up of described support bar such as monitoring camera Frame, the data measured by described laser range finder are transferred to data handling system 8 by described wireless communication module 14.

Being provided with support bar on described ground, when described support bar and measurement pipe original state, the plane at place is perpendicular to base Hole sidewall, described laser range finder is disposed on support bar, and described support bar is arranged on the distance foundation ditch with foundation pit side-wall The position that the degree of depth is 1 times～1.5 times, in the present embodiment, the position of described support bar is arranged on the distance with foundation pit side-wall and is equal to 1.5 Position again.

Described data handling system 8 include input equipment, data storage, output equipment, controller, for accessing interconnection The network insertion mouth of net.

Described input equipment, for receiving the data that resistance strain gage, obliquity sensor and laser range finder measure；

Described data storage, for storing the data receiving；

Described controller, the data that Treatment Analysis receives, obtain margin of foundation pit Vertical Settlement data；

The margin of foundation pit Vertical Settlement data obtaining are flowed to user terminal by described output equipment.

The monitoring device of margin of foundation pit Vertical Settlement described in the utility model, in use according to the following steps:

S1, at foundation pit side-wall 0.30m～0.50m pre-buried measurement pier, described measurement pier elevates above the soil 0.5m～1m.

S2, support bar is set in the position of the distance foundation depth 1 times～1.5 times with foundation pit side-wall, in the present embodiment Support bar distance foundation depth 1.5 times, arranges three rangefinders on support bar；And arrange and rangefinder on the top of measurement pier Object of reference.

S3, rangefinder monitor the range data between corresponding object of reference, are transmitted to data process by wireless module System.

S4, data handling system process and analyze the data receiving, and send data processed result to user terminal.

S5, described rangefinder are laser range finder, and described object of reference is for being arranged on described measurement pier top end and datum mark The speculum arranging；

S6, the coordinate of three datum marks are designated as { x respectively₁,y₁,z₁}、{x₂,y₂,z₂And { x₃,y₃,z₃, measurement the respectively Two rangefinders are designated as d to the initial distance of three datum marks₁、d₂And d₃If the second laser range finder initial coordinate is { x₀,y₀, z₀}；

Controller is by following Mathematical Modeling and x₀、x₁、x₂And x₃Between magnitude relationship, calculate the second laser range finder Initial coordinate:

$\left\{\begin{array}{c}{(x_0-x_1)}^2+{(y_0-y_1)}^2+{(z_0-z_1)}^2=d_1^2\\ {(x_0-x_2)}^2+{(y_0-y_2)}^2+{(z_0-z_2)}^2=d_2^2\\ {(x_0-x_3)}^2+{(y_0-y_3)}^2+{(z_0-z_3)}^2=d_3^2\end{array}\right.---\left(1\right)$

In t, measure the second laser range finder respectively to distance d of three datum marks₁(t)、d₂(t) and d₃(t), if Now the second laser range finder coordinate is { x (t), y (t), z (t) }.

Controller by following Mathematical Modeling and above-mentioned x coordinate magnitude relationship, calculates t laser regulator coordinate:

$\left\{\begin{array}{c}{\left(x\right(t)-x_1)}^2+{\left(y\right(t)-y_1)}^2+{\left(z\right(t)-z_1)}^2=d_1^2\left(t\right)\\ {\left(x\right(t)-x_2)}^2+{\left(y\right(t)-y_2)}^2+{\left(z\right(t)-z_2)}^2=d_2^2\left(t\right)\\ {\left(x\right(t)-x_3)}^2+{\left(y\right(t)-y_3)}^2+{\left(z\right(t)-z_3)}^2=d_3^2\left(t\right)\end{array}\right.---\left(2\right)$

The height difference H of two the first laser range finders of measurement, and it is anti-to correspondence to measure two the first laser range finders respectively Penetrate the initial distance s of mirror₀₁And s₀₂(s₀₁<s₀₂)；

T during monitoring, measures distance s of two the first laser range finders and reflective mirror₁(t) and s₂(t),

Controller calculates foundation ditch deep layer earth's surface Vertical Settlement by following Mathematical Modeling:

$\mathrm{\&Delta;}h\left(t\right)=\frac{\&lsqb;s_2^2\left(t\right)-s_1^2\left(t\right)\&rsqb;-\&lsqb;s_{20}^2\left(t\right)-s_{10}^2\left(t\right)\&rsqb;}{2H}+h\&lsqb;cos\mathrm{\&theta;}\left(t\right)-1\&rsqb;+z_0-z\left(t\right),---\left(3\right)$

The soil body near foundation pit side-wall for the utility model pre-buried measurement pier, in conjunction with the position in laser range finder measurement pier top portion Moving, by a series of Mathematical Modeling, being accurately obtained margin of foundation pit Vertical Settlement, measuring accuracy is high, and automaticity is high, goes forward side by side One step reduces monitoring cost, improves the ageing of Monitoring Data and reliability.

Other structures of the monitoring device of margin of foundation pit Vertical Settlement described in the present embodiment see prior art.

The above, be only preferred embodiment of the present utility model, not the utility model is made any in form Restriction, therefore every without departing from technical solutions of the utility model content, implement to above according to technical spirit of the present utility model Any modification, equivalent variations and the modification that example is made, in the range of all still falling within technical solutions of the utility model.

Claims (6)

1. the monitoring device of a margin of foundation pit Vertical Settlement, it is characterised in that: include measurement pier, range-measurement system, datum mark and Data handling system；

Described measurement pier is to be embedded in distance foundation pit side-wall the measurement marker elevating above the soil；

Described range-measurement system, for measuring the distance of described measurement pier and range-measurement system and measuring described datum mark and range finding The distance of system；

Described datum mark, is arranged far from the ground of described foundation pit side-wall side；

Described data handling system, is used for receiving the data that described range-measurement system monitors, and processes the data receiving, by base Pit edge Vertical Settlement is transferred to user terminal.

2. the monitoring device of margin of foundation pit Vertical Settlement according to claim 1, described measurement pier is embedded in distance foundation ditch side In the soil body of wall 0.3m～0.5m and the 0.5m～1m that elevates above the soil.

3. the monitoring device of margin of foundation pit Vertical Settlement according to claim 1, described range-measurement system includes being arranged on measurement It speculum on pier top end and datum mark, is arranged on ground support bar, some laser range finders and radio communication mold Block；

Described laser range finder is disposed on described support bar successively；

Described laser range finder is connected with described data handling system communication by described wireless communication module.

4. the monitoring device of margin of foundation pit Vertical Settlement according to claim 3, described laser range finder is three, including two Individual first laser range finder and second laser range finder, the first laser range finder be used for measurement pier top end with to stress The distance of optar；

Described second laser range finder is for measuring the distance of this laser range finder and datum mark；

When described support bar and measurement pier original state, the plane at place is perpendicular to foundation pit side-wall.

5. the monitoring device of margin of foundation pit Vertical Settlement according to claim 4, described laser range finder is by automatic alignment Structure is arranged on described support bar；Described automatic align structures regulates laser and the measurement that described first laser range finder sends Speculum on pier is vertical；The laser that described automatic align structures described second laser range finder of regulation sends with on datum mark Speculum is vertical.

6. the monitoring device of margin of foundation pit Vertical Settlement according to claim 5, described datum mark totally three, be arranged on and base The distance of hole sidewall is the position of foundation depth 3 times～5 times, and three datum mark not conllinear.