A kind ofly oblique throwings that regulate of intelligent deformation can support support system for dredging silt matter soil district foundation ditch
Technical field
The utility model relates to the support technology field of excavation of foundation pit space enclosing structure form in dredging silt soil district.
Background technology
In the last few years, the dredging silt in shallow lake or bay used general as land-based area backfilling material, mud carries out construction and also becomes a kind of trend of building.Along with the excavation of foundation pit area of silt soil region and the degree of depth increasing, its excavation is also comparatively large on the impact of surrounding environment, and excavation of foundation pit design and analysis transfers Deformation Control Design to from strength control design.For controlling foundation pit deformation, the general classification of traditional campshed supporting has a supporting, pile-anchor retaining, stake to add horizontal support supporting etc.
Stake supporting is used in the shallow base pit engineering of early stage mucky soil, but along with the increase of the excavation of foundation pit degree of depth, the deformation effect that simple stake supporting controls foundation ditch is bad, is generally combined with anchor pole and horizontal support the distortion controlling foundation ditch.Pile-anchor retaining is restricted use owing to being distributed with " lifeline " engineerings such as intensive underground utilities near excavation pit.Stake add horizontal support supporting due to excavation of foundation pit area large, longer dimension, supports self compression comparatively large, makes the distortion of space enclosing structure can not get good control, also bring the increase of cost and be restricted use simultaneously.These support patterns can not regulate the power suffered by self to control the distortion of foundation ditch by Real-Time Monitoring distortion separately automatically, and this support action for foundation ditch is disadvantageous.
Publication date is on November 19th, 2014, publication number is CN104153374A, denomination of invention is that the Chinese patent application of " a kind of with diagonal brace and the combined type foundation pit supporting construction drawing anchor " discloses a kind of foundation pit supporting construction, it is provided with enclosure wall, tiltedly throws support, connects bearing, stiffening pile etc., a kind of exactly diagonal brace and the foundation pit supporting construction drawing anchor to combine.
Utility model content
The purpose of this utility model is to overcome above-mentioned deficiency of the prior art, provides a kind of novel foundation ditch curing system with intelligent deformation regulating power, can reduce soldier pile distortion, the outer technical problem such as ground settlement and foundation ditch bottom sludge protuberance of foundation ditch.
To achieve these goals, the utility model have employed following technical scheme: a kind ofly oblique throwings that regulate of intelligent deformation can support support system for dredging silt matter soil district foundation ditch, it is characterized in that: comprise and tiltedly throw support supporting and protection structure, data collecting system, mechanical control system and Based Intelligent Control element
Described oblique throwing support supporting and protection structure comprises
Soldier pile, is arranged along foundation pit side-wall, among the dredging silt vertically inserting in foundation ditch,
Cushion cap, flying shore is more than foundation ditch earth's surface, and cushion cap cross section is right-angled trapezium, and
Antislide pile, is arranged at bottom cushion cap, for providing a supporting role cushion cap, and
Oblique throwing support, supports and is fixedly connected between soldier pile pile body and cushion cap inclined-plane;
Described data collecting system comprises some first inclinometer pipes being embedded in the outer earth's surface place of foundation ditch, some second inclinometer pipes be embedded in soldier pile, is embedded in the 3rd inclinometer pipe bottom foundation ditch in dredging silt, measure the outer ground settlement of foundation ditch, the distortion of soldier pile and the uplift capacity of foundation ditch bottom sludge respectively, and
Along some holes pressure meter that the vertical degree of depth of difference of the outer same plane position, earth's surface of foundation ditch is buried underground, for measuring the pore water pressure under the outer mud different depth of foundation ditch, and
Be pasted on the some foil gauges tiltedly throwing support surface, measure and tiltedly throw the deflection of support when excavation of foundation pit;
Described mechanical control system comprises a hydraulic jack;
The monitored data of pore water pressure, the tiltedly deflection of throwing support when excavation of foundation pit outside the distortion of the outer ground settlement of the actual foundation ditch recorded of described Based Intelligent Control component collection, soldier pile, the uplift capacity of foundation ditch bottom sludge, foundation ditch under mud different depth, and be analyzed with the result of calculation in design document, when monitored data and design calculation result differ greatly, Based Intelligent Control element controls described hydraulic jack to tiltedly throwing support end Shi Hanzhang to regulate the supporting of foundation ditch entirety is stable.
Preferably, described foil gauge is pasted with at least 3 along the axis direction tiltedly throwing support.
Preferably, described oblique throwing support is the assembly of a steel pipe or many steel pipes.
Oblique throwing support structure of the present utility model make the mucky soil level of foundation pit side-wall to Stress transmit to foundation ditch bottom cushion cap and antislide pile on, the protuberance that the level of the mucky soil of foundation pit side-wall is produced to the top macroscopic destruction of stress and foundation ditch bottom sludge matter mud balances each other.On the other hand, by axially pasting the foil gauge being arranged in and tiltedly throwing in support, the hole pressure that the degree of depth is buried underground downward vertically along the outer earth's surface of foundation ditch is counted and is embedded in soldier pile, inclinometer pipe in the outer earth's surface place of foundation ditch and foundation ditch bottom sludge soil can tiltedly throw the distortion of support by Real-Time Monitoring, the pore water pressure change of the outer mud of foundation ditch and the distortion of soldier pile, the uplift capacity of the outer ground settlement of foundation ditch and foundation ditch bottom sludge, and the data they recorded are transferred to Based Intelligent Control element in real time, through the analyzing and processing of Based Intelligent Control element to these data, hydraulic control jack pair is tiltedly thrown support and is carried out regulable control again, to meet the support action to the foundation ditch of silt soil region.Intelligent deformation of the present utility model regulates tiltedly to throw to support and carries out supporting by the foundation ditch of the power suffered by self to dredging silt soil district, and this is significant for the distortion of reduction soldier pile, the outer ground settlement of foundation ditch and foundation ditch bottom sludge protuberance.
Accompanying drawing explanation
Fig. 1 is that intelligent deformation regulates the schematic diagram tiltedly throwing support support form;
Fig. 2 is the schematic diagram tiltedly throwing support support form.
Fig. 3 is that after soldier pile, earth's surface, apart from the horizontal range of soldier pile and the graph of a relation of subsidence value, shows monitor value and calculated value difference is less in figure.
Fig. 4 is the graph of a relation of soldier pile horizontal movement and soldier pile buried depth, the monitor value shown in figure and calculated value difference less.
Fig. 5 is that after soldier pile, earth's surface is apart from the horizontal range of soldier pile and the graph of a relation of subsidence value, and in figure, before vision-control, monitor value and calculated value differ greatly, the foundation ditch after adjustment outward surface subsidence monitoring value and calculated value difference less.
Fig. 6 is the graph of a relation of soldier pile horizontal movement and soldier pile buried depth, and the monitor value in figure before vision-control and calculated value differ greatly, through regulate soldier pile horizontal displacement monitoring value and calculated value difference less.
Fig. 7 is that in figure, before vision-control, monitor value and calculated value differ greatly apart from the horizontal range of soldier pile and the uplift capacity graph of a relation of foundation ditch bottom soil body bottom foundation ditch, at the bottom of the monitoring foundation ditch of adjustment mud protuberance value and calculated value difference less.
In figure, foundation ditch 100, hole pressure meter 101, soldier pile 102, tiltedly throws support 103, foil gauge 104, cushion cap 105, antislide pile 106, the first inclinometer pipe 107, second inclinometer pipe the 108, three inclinometer pipe 109, Based Intelligent Control element 110, hydraulic jack 110, mud 1000
Detailed description of the invention
Should be understood that the upper and lower, left and right in this manual, upwards, downwards, left, to the right directional terms be the description for the orientation shown in accompanying drawing, these orientation are not restrictive.If there is no certain illustrated, term is herein inside, outside, inside and outside, inner side, outside refer to scope relative to part centre, such as using electrical axis as reference, interior and inner side refers to closer to or points to position or the orientation of electrical axis, and outer and outside refers to further from motor center position.In addition, term level, hold up, the term such as pendency do not represent and requires parts abswolute level or pendency, and allow to tilt a little.As level only refers to its direction opposed vertical level more, be not represent that this structure wants complete level, but can tilt a little.
Below in conjunction with accompanying drawing Fig. 1 and Fig. 2, realization of the present utility model is described in detail.
What the utility model was used for dredging silt matter soil district foundation ditch can oblique the throwings support support system that regulates of intelligent deformation, comprises tiltedly throwing and supports supporting and protection structure, data collecting system, mechanical control system and Based Intelligent Control element.
Wherein, as shown in Figure 2, tiltedly throw support supporting and protection structure to comprise soldier pile 102, cushion cap 105, tiltedly throw support 103 and antislide pile 106.Soldier pile 102 is arranged along foundation ditch 100 sidewall, among the dredging silt 1000 vertically inserting in foundation ditch.Cushion cap cross section is right-angled trapezium, and hypotenuse is towards tiltedly throwing support 103 and soldier pile 102.Be provided with antislide pile 106 bottom cushion cap 105, cushion cap 105 is provided a supporting role.Oblique throwing support 103 one end supports to be fixed on soldier pile 102, and the other end supports the inclined-plane being fixed on cushion cap 105.Cushion cap 105 is as shown in Fig. 1 Fig. 2, and setting is suspended on the soil body bottom foundation ditch, can regulate the jack device 110 tiltedly thrown in support 103 easily.Simultaneously, the bottom of cushion cap 105 is connected with antislide pile 106 and effectively can be passed on antislide pile 106 tiltedly throwing the pressure that support 103 is subject to, and such transmission mechanical behavior makes the stressed trend of whole foundation pit supporting construction clear and be easy to regulable control to make supporting and protection structure keep safer distortion and stress.
As shown in Figure 1, described data collecting system comprises some first inclinometer pipes 107 being embedded in the outer earth's surface place of foundation ditch, some second inclinometer pipes 108 be embedded in soldier pile 102, is embedded in the 3rd inclinometer pipe 109 bottom foundation ditch in dredging silt, measures the outer ground settlement of foundation ditch, the distortion of soldier pile and the uplift capacity of foundation ditch bottom sludge respectively.The vertical degree of depth of difference along the outer same plane position, earth's surface of foundation ditch is embedded with multiple hole pressure meter 101, for measuring the pore water pressure under the outer mud different depth of foundation ditch.There are at least three pieces of foil gauges 104 along the axis direction tiltedly throwing support at its surface mount, tiltedly throw the deflection of support when excavation of foundation pit for measuring.
Mechanical control system comprises a hydraulic jack 110, and tiltedly throws support 104 and is connected, and prior Shi Hanzhang.
The outer ground settlement of the actual foundation ditch recorded collected by Based Intelligent Control element 110, the distortion of soldier pile, the uplift capacity of foundation ditch bottom sludge, pore water pressure under the outer mud different depth of foundation ditch, oblique monitored data of throwing the deflection of support when excavation of foundation pit, and be analyzed with the result of calculation in design document, when monitored data and design calculation result differ greatly, Based Intelligent Control element controls described hydraulic jack 110 to tiltedly throwing support end Shi Hanzhang to regulate the supporting of foundation ditch entirety is stable, to meet the support action to foundation ditch, can realize like this tiltedly throwing the Real-Time Monitoring of support supporting and protection structure and real-time regulable control.
As shown in Figure 3, Figure 4, Based Intelligent Control element 110 is collected pore water pressure under the outer ground settlement of the actual foundation ditch recorded, the distortion of soldier pile, the uplift capacity of foundation ditch bottom sludge, the outer mud different depth of foundation ditch, is tiltedly thrown the monitored data of the deflection of support when excavation of foundation pit, and be analyzed with the result of calculation in design document, when monitoring result and result of calculation close to time, can think that supporting and protection structure can ensure that base pit engineering is stablized and safety, not need to regulate.
As Fig. 5, Fig. 6, shown in Fig. 7, the outer ground settlement of the actual foundation ditch recorded collected by Based Intelligent Control element 110, the distortion of soldier pile, the uplift capacity of foundation ditch bottom sludge, pore water pressure under the outer mud different depth of foundation ditch, oblique monitored data of throwing the deflection of support when excavation of foundation pit, and be analyzed with the result of calculation in design document, when monitoring result differs larger with result of calculation, the automatic hydraulic control jack of data processing centre carries out Stress control, improve the stressed of supporting and protection structure, and the monitoring result after adjustment and result of calculation are analyzed simultaneously, when monitor value after adjustment (comprises the outer ground settlement of foundation ditch, soldier pile is out of shape, mud uplift capacity bottom foundation ditch) close to computationally secure value time, can think that supporting and protection structure can ensure that base pit engineering is stablized and safety, do not need to regulate.
The utility model includes, but are not limited to above-described embodiment and content shown in the drawings, other all fall within protection domain of the present utility model with the product structure that the technical solution of the utility model has identical essentiality content.