CN208999432U - The multi-functional indoor simulation device of pore-forming filling concrete - Google Patents

Abstract

The utility model discloses the multi-functional indoor simulation devices that a kind of pore-forming fills concrete, it includes lifting driving cylinder, column and the crossbeam being mounted on column, crossbeam is equipped with detection device, lifting driving cylinder is located at below the crossbeam, the lifting unit for going up and down driving cylinder is equipped with the cylinder of opening upwards, is successively arranged mud layer, laitance layer and concrete layer from top to bottom in cylinder.The indoor simulation device can simulate the filling concrete process into pore-forming indoors.

Description

The multi-functional indoor simulation device of pore-forming filling concrete

Technical field

It is especially that a kind of pore-forming fills the multi-functional of concrete the utility model relates to the filling concrete field in civil engineering Indoor simulation device.

Background technique

In foundation construction, it is often necessary to the concrete perfusion into pore-forming, the pore-forming refer to by drilling, punching, explosive expansion, The hole that the modes such as immersed tube, artificial are constructed into, the process for filling concrete is usually that the bottom of pore-forming is inserted into a Grouting Pipe, then under It is up in the milk, concrete liquid level can turn over from lower to upper at this time.

Encountered in practice of construction the soil body it is softer when, it is often necessary to drilling while carry out mud off, this is just formed Mud layer in hole, and hole wall hack is fallen and hole in existing other impurities such as sand etc. will form laitance layer, that is, It says, it, will outwardness three layers of different substance, the i.e. concrete layer of bottom, middle part in pore-forming during filling concrete Laitance layer and the mud layer on top.

When the prior art fills concrete to pore-forming, there are a technical problems, i.e., due to above concrete layer there are mud layer and Laitance layer, so the prior art can not accurately know the influx height of concrete layer.The prior art is often according to concrete Total groundwater increment is divided by the sectional area of drilling, and substantially to obtain a filling concrete height, but above-mentioned conversion method accuracy is too low, and Due to the presence of reaming, pore-forming aperture is inconsistent to cause to be difficult to estimate, can not instruct practice of construction.So the prior art is universal It takes such as 1 meter of superfilled certain altitude of mode to construct, for example sets the absolute altitude for filling concrete as 9 meters, it is necessary to 10 meters are filled into, It is abundant to ensure to fill concrete, and then guarantee pile quality, but the superfilled waste that necessarily will cause concrete material, lead to increased costs, also not Meet energy-saving and environment-friendly needs.

So to solve above-mentioned technical problem, obtain it is accurate fill concrete height, research staff, which proposes, in industry a variety of guesses Think, the imagination for filling concrete actual height is such as judged using the variation of pressure measurement, temperature change or weight jacking force.But it is above-mentioned to set Want that needing to carry out building-site experiment is confirmed.And building-site environment is complicated, experiment condition is severe, operate it is time-consuming and laborious and There are certain security risks, so, before carrying out field experiment, it can carry out and have indoors there is an urgent need to one kind in industry The device of standby certain perspective, energy construction simulation scene filling concrete process, goes to obtain concrete stratification interface height, pressure, temperature Etc. various parameters, and carry out induction and conclusion comparison, the feasibility of various guesses judged, to obtain carry out field experiment Theoretical foundation.

Utility model content

The technical problems to be solved in the utility model is to provide a kind of can simulate indoors and fills the more of concrete process into pore-forming Function indoor simulation device.

The technical solution of the utility model is to provide a kind of indoor simulation device, it includes lifting driving cylinder, column With the crossbeam being mounted on column, crossbeam is equipped with detection device, and lifting driving cylinder is located at below the crossbeam, goes up and down the liter of driving cylinder Drop portion is equipped with the cylinder of opening upwards, is successively arranged mud layer, laitance layer and concrete layer from top to bottom in cylinder.

Multi-functional indoor simulation device using the above structure compared with prior art, has the following advantages that.

Firstly, cylinder effectively simulates drilling, and the intracorporal three layers of substance of cylinder also reduces mud layer in hole, laitance as far as possible The situation of layer and concrete layer, and open lifting driving cylinder, drives cylinder at the uniform velocity to rise, and then drives mud layer in cylinder, floating Pulp layer and concrete layer at the uniform velocity rise, this just substantially simulates the process that pore-forming inner concrete at the uniform velocity turns over.During this, utilize Each detection device on crossbeam acquires the information such as power, displacement, temperature in time, carries out convenient for the later period in conjunction with concrete layer height Global alignment, to verify the correctness of each guess.The apparatus structure is simple, low cost, but safe and reliable, prior That, by indoor simulation, can successfully be verified to the feasibility of various guesses, to subsequent outdoor experiment provide it is theoretical according to According to having perspective and guiding.

Preferably, column is two, external screw thread is set at the top of column, there are two nut, crossbeams for the top rotation of each column Both ends are equipped with two through hole, and beam-end via through holes are linked on column and beam-end is pushed against with nut up and down, in this way, passing through Unscrew nut, so that it may hoisting cross beam again, and after being elevated to proper height, lock nut, can lock beam height again, Convenience is provided for subsequent measurement.

As further preferred, which further includes the displacement sensor for measuring cylinder climb；In this way, can be with According to cylinder climb and the thickness of concrete layer, laitance layer and mud layer, each layer substance line of demarcation is accurately obtained Height in real time, and then foundation and support are provided to subsequent theory analysis.

The connection structure of upper displacement sensors is preferred are as follows: the lifting unit for going up and down driving cylinder is fixed with pallet, pallet top surface Equipped with position limiting convex ring, cylinder is caught in position limiting convex ring, and cantilever is fixed on column, and displacement sensor is fixed on cantilever, pallet Top surface is located at region and displacement sensor face outside position limiting convex ring；Firstly, position limiting convex ring blocks cylinder, so that cylinder lifting is driven Dynamic cylinder is connected firmly stabilization, and displacement sensor is fixed through cantilever, and structure is simple, and measurement facilitates accurate.

As further preferably, cylinder shell is made of transparent material；In this way, concrete intuitively can be obtained accurately The thickness of layer, laitance layer and mud layer, provides an intuitive accurate judgment basis for subsequent experimental.

As the first mandril still further preferably, on crossbeam is fixed with, pressure sensor is fixed with below the first mandril；On State the measuring principle of structure are as follows: during lifting driving cylinder drives cylinder and three layers of substance to rise, hard mandril bottom Pressure sensor can be contacted successively and be immersed in three layers of substance, wherein in mud layer, sensor is mainly by hydraulic, and half In dry half dilute laitance layer, as sensor soaking depth increases, laitance viscosity increases, the main stress of sensor can from it is hydraulic by Step is transformed into jacking force, but when pressure sensor contacts are to concrete layer, will receive the jacking force increased suddenly, that is, go out Existing inflection point at this point, inflection point occurs in observed pressure value at the time of increase suddenly, while comparing displacement sensor, it finds that, work as pressure When inflection point occurs in force snesor, pressure sensor just touches the top surface of concrete layer, thus effectively demonstrate pressure inflection point with Fill the identical guess of concrete high level of synchronization.

As still further preferably, crossbeam is through a spring dynamometer and a drag-line and a removable company of weight It connects；The measuring principle of above structure are as follows: when weight is hanging, spring dynamometer measures the gravity of weight, but when weight impregnates, By buoyancy or jacking force, the value of spring dynamometer can be reduced, and specifically, weight is in mud layer by buoyancy, dynamometry The value slight decrease of device, when in half-dried half dilute laitance layer, as soaking depth increases, laitance viscosity increases, and weight is main Stress can be changed into jacking force by buoyancy, and the amplitude that the value of dynamometer reduces under this state will increase, but still unobvious, only and It, can be by the complete jacking of concrete layer, so that the test value of spring dynamometer drops rapidly when weight starts to contact concrete layer It is low, that is, there is inflection point, in other words, when inflection point occurs in the value rapid drawdown of dynamometer, compares displacement sensor and converse mixed The height value in solidifying soil face, discovery weight contact concrete surface and dynamometer occur inflection point be it is synchronous, this just effectively demonstrates pass In the guess that weight stress inflection point and filling concrete are identical；Moreover, because the connection of weight and drag-line be it is removable, this is conveniently The most suitable specific gravity of weight is finally obtained for researching and analysing in the weight for replacing various different specific weights, it is ensured that weight can be accurate Mud layer and laitance layer are sunk to, and is hovered on concrete layer completely.

As the second mandril further preferably, on beam is fixed with, interval is laid with multiple temperature sensors on the second mandril；This Sample, in the quiescent state, each sensor positioned at different height can be separately immersed in concrete layer, laitance layer and mud layer, and There are the obvious temperature difference between the temperature sensor of different layers, this just confirms that concrete meets the heat of hydration, so that three layers of substance Between the temperature difference significantly guess, be based on above-mentioned conjecture, for temperature control seek filling concrete height method theoretical foundation and premise are provided.

Detailed description of the invention

Fig. 1 is a kind of facing structure signal for embodiment of multi-functional indoor simulation device that the utility model pore-forming fills concrete Figure.

Fig. 2 is the facing structure signal for the multi-functional indoor simulation device another kind embodiment that the utility model pore-forming fills concrete Figure.

As shown in the figure 1, lifting driving cylinder, 2, column, 3, crossbeam, 4, cylinder, 5, mud layer, 6, laitance layer, 7, concrete Layer, 8, nut, 9, displacement sensor, the 10, first mandril, 11, pressure sensor, 12, spring dynamometer, 13, drag-line, 14, Weight, the 15, second mandril, 16, temperature sensor, 17, bottom plate, 18, pallet, 19, position limiting convex ring, 20, cantilever.

Specific embodiment

The utility model is described in further detail in the following with reference to the drawings and specific embodiments.

As shown in Figure 1 and Figure 2, the utility model pore-forming fills the multi-functional indoor simulation device of concrete, it includes lifting driving cylinder 1, column 2 and the crossbeam 3 being mounted on column 2, in the present embodiment, lifting driving cylinder 1 refers to hydraulic jack.

Crossbeam 3 and the specific connection type of column 2 are that column 2 is two, external screw thread are set at the top of each column 2, every vertical The top rotation of column 2 is there are two nut 8, and 3 both ends of crossbeam are equipped with two through hole, and the every one end via through holes of crossbeam 3 are linked in a root post 2 Upper and 3 end of crossbeam is pushed against with two nuts 8 on same end column 2 respectively.

Lifting driving cylinder 1 is located at 3 lower section of crossbeam, and specifically, 1 lower end of two root posts is connected with one piece of bottom plate 17, lifting Driving cylinder 1 is shelved on bottom plate 17.The lifting unit for going up and down driving cylinder 1 is equipped with the cylinder 4 of opening upwards, and specifically, lifting is driven The lifting unit of dynamic cylinder 1 is fixed with pallet 18, and 18 top surface of pallet is equipped with position limiting convex ring 19, and cylinder 4 is caught in position limiting convex ring 19.

Mud layer 5, laitance layer 6 and concrete layer 7 are successively arranged in cylinder 4 from top to bottom.Cylinder 4 is by transparent material such as glass Glass is made.

The simulator further includes the displacement sensor 9 for measuring 4 climb of cylinder, specifically, solid on column 2 Surely there is cantilever 20, displacement sensor 9 is fixed on cantilever 20, and 18 top surface of pallet is located at region and displacement biography outside position limiting convex ring 19 9 face of sensor.The displacement sensor 9 can use laser reflection type displacement sensor 9.

Crossbeam 3 is equipped with following three kinds of detection devices.

One, the first mandril 10 is fixed on crossbeam 3, is fixed with pressure sensor 11 below the first mandril 10.

Two, crossbeam 3 is through a spring dynamometer 12 and a drag-line 13 and a removable connection of weight 14.

Specifically, crossbeam 3 and 12 upper end of spring dynamometer hook, 12 lower end of spring dynamometer and 13 upper end of drag-line It hooks, 13 lower end of drag-line is equipped with link, and weight 14 is equipped with the hook cooperated with link.Above-mentioned spring dynamometer 12 can select Select the sensor with digital displaying function, more intuitive and convenient.

Three, the second mandril 15 is fixed on crossbeam 3, interval is laid with multiple temperature sensors 16 on the second mandril 15.When So, each temperature sensor 16 can also be laid on the inner sidewall of cylinder 4.

Above-mentioned displacement sensor 9, pressure sensor 11, spring dynamometer 12 and temperature sensor 16 is and main control Device such as host computer signal connects, and master controller is also connected with the display of the various test results of display.

Claims (8)

1. the multi-functional indoor simulation device that a kind of pore-forming fills concrete, it is characterised in that: it includes lifting driving cylinder (1), column (2) With the crossbeam (3) being mounted on column (2), crossbeam (3) is equipped with detection device, and lifting driving cylinder (1) is located under crossbeam (3) Side, the lifting unit of lifting driving cylinder (1) are equipped with the cylinder (4) of opening upwards, are successively arranged mud layer from top to bottom in cylinder (4) (5), laitance layer (6) and concrete layer (7).

2. the multi-functional indoor simulation device that pore-forming according to claim 1 fills concrete, it is characterised in that: column (2) is two Root, column (2) top set external screw thread, and there are two nut (8) for the top rotation of each column (2), and it is logical that crossbeam (3) both ends are equipped with two Hole, crossbeam (3) end via through holes are linked on column (2) and crossbeam (3) end is pushed against with nut (8) up and down.

3. the multi-functional indoor simulation device that pore-forming according to claim 1 fills concrete, it is characterised in that: it includes for surveying The displacement sensor (9) of graduated cylinder body (4) climb.

4. the multi-functional indoor simulation device that pore-forming according to claim 3 fills concrete, it is characterised in that: lifting driving cylinder (1) lifting unit is fixed with pallet (18), and pallet (18) top surface is equipped with position limiting convex ring (19), and cylinder (4) is caught in position limiting convex ring (19) it in, is fixed on column (2) cantilever (20), displacement sensor (9) is fixed on cantilever (20), and pallet (18) top surface is located at The region of position limiting convex ring (19) outside and displacement sensor (9) face.

5. the multi-functional indoor simulation device that pore-forming according to claim 1 fills concrete, it is characterised in that: cylinder (4) shell It is made of transparent material.

6. the multi-functional indoor simulation device that pore-forming according to claim 3 fills concrete, it is characterised in that: solid on crossbeam (3) Surely have the first mandril (10), be fixed with pressure sensor (11) below the first mandril (10).

7. the multi-functional indoor simulation device that pore-forming according to claim 3 fills concrete, it is characterised in that: crossbeam (3) is through one A spring dynamometer (12) He Yigen drag-line (13) and a removable connection of weight (14).

8. the multi-functional indoor simulation device that pore-forming according to claim 3 fills concrete, it is characterised in that: solid on crossbeam (3) Surely have the second mandril (15), interval is laid with multiple temperature sensors (16) on the second mandril (15).