CN104746522B - A kind of for dredging silt matter soil district foundation ditch can intelligent deformation regulation tiltedly throw support support system - Google Patents

A kind of for dredging silt matter soil district foundation ditch can intelligent deformation regulation tiltedly throw support support system Download PDF

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Publication number
CN104746522B
CN104746522B CN201510194561.4A CN201510194561A CN104746522B CN 104746522 B CN104746522 B CN 104746522B CN 201510194561 A CN201510194561 A CN 201510194561A CN 104746522 B CN104746522 B CN 104746522B
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China
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support
foundation ditch
tiltedly
pile
foundation
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CN201510194561.4A
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Chinese (zh)
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CN104746522A (en
Inventor
曹玲珑
陆钊
王志强
王亮
石萍
田海涛
谢健
林国威
王琰
Original Assignee
国家海洋局南海规划与环境研究院
深圳市工勘岩土集团有限公司
中水珠江规划勘测设计有限公司
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Priority to CN201510194561.4A priority Critical patent/CN104746522B/en
Publication of CN104746522A publication Critical patent/CN104746522A/en
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Abstract

The invention provides a kind of for dredging silt matter soil district foundation ditch can intelligent deformation regulation tiltedly throw support support system, it includes tiltedly throwing support supporting construction, data collecting system, mechanical control system and Based Intelligent Control element, the outer ground settlement of foundation ditch that Based Intelligent Control component collection is actually measured, the deformation of support pile, the uplift capacity of foundation ditch bottom sludge, pore water pressure under the outer mud different depth of foundation ditch, tiltedly throw the Monitoring Data of the support deflection when excavation of foundation pit, and be analyzed with the result of calculation in design document, when Monitoring Data differs greatly with design calculation result, Based Intelligent Control element controls described hydraulic jack and is stably adjusted with the supporting overall to foundation ditch to tiltedly throwing support end Shi Hanzhang.The intelligent deformation regulation of the present invention is tiltedly thrown support, by self suffered power, the foundation ditch in dredging silt soil district is carried out supporting, significant for reducing support pile deformation, the outer ground settlement of foundation ditch and foundation ditch bottom sludge protuberance.

Description

A kind of for dredging silt matter soil district foundation ditch can intelligent deformation regulation tiltedly throw support support system
Technical field
The present invention relates to the support technology field of excavation of foundation pit building enclosure form in dredging silt soil district.
Background technology
In the last few years, the dredging silt in shallow lake or bay used generally as land-based area backfilling material, enterprising at mud Row construction also becomes a kind of trend of building.Along with excavation of foundation pit area and the degree of depth of silt soil region are increasing, Its excavation is the biggest on the impact of surrounding, and excavation of foundation pit design and analysis transfers deformation control to from strength control design Set up meter.For controlling foundation pit deformation, the general classification of traditional campshed supporting has a supporting, pile-anchor retaining, stake to add level Support supporting etc..
Stake supporting is used in the shallow base pit engineering of muck soil in early days, but along with the excavation of foundation pit degree of depth increases, simple stake The deformation effect that supporting controls foundation ditch is bad, the general deformation being used in combination control foundation ditch with anchor pole and horizontal support.Piled anchor Supporting is distributed around " life line " engineerings such as intensive underground utilities due to excavation pit and is restricted use.Stake adds Horizontal support supporting is big due to excavation of foundation pit area, longer dimension, supports self compression bigger so that the change of building enclosure Shape can not get well controlling, and also brings the increase of cost to be restricted use simultaneously.These support patterns can not lead to Crossing and monitor in real time respective deformation to be automatically adjusted self suffered power to control the deformation of foundation ditch, this is for the supporting of foundation ditch Effect is disadvantageous.
Publication date is on November 19th, 2014, Publication No. CN104153374A, invention entitled " a kind of with tiltedly Support with draw the combination type foundation pit supporting construction of anchor " Chinese invention patent application disclose a kind of foundation pit supporting construction, it sets Have enclosure wall, tiltedly throw support, connect bearing, stiffening pile etc., it is simply that a kind of diagonal brace and the foundation pit supporting construction drawing anchor to combine.
Summary of the invention
It is an object of the invention to overcome above-mentioned deficiency of the prior art, it is provided that a kind of novel intelligent deformation that has is adjusted The foundation ditch curing system of energy-conservation power, can reduce support pile deformation, the outer skill such as ground settlement and foundation ditch bottom sludge protuberance of foundation ditch Art problem.
To achieve these goals, present invention employs techniques below scheme: a kind of for dredging silt matter soil district foundation ditch Can intelligent deformation regulation tiltedly throw support support system, it is characterised in that: include tiltedly throwing support supporting construction, data acquisition system System, mechanical control system and Based Intelligent Control element,
Described oblique support supporting construction of throwing includes
Support pile, arranges along foundation pit side-wall, vertically inserts among the dredging silt of foundation ditch,
Cushion cap, flying shore is more than foundation ditch earth's surface, and cushion cap cross section is right-angled trapezium, and
Friction pile, is arranged at bottom cushion cap, for cushion cap is provided a supporting role, and
Tiltedly throw support, support and be fixedly connected between support pile pile body and cushion cap inclined-plane;
Described data collecting system includes being embedded in some first inclinometer pipes at the outer earth's surface of foundation ditch, is embedded in support pile Some second inclinometer pipes, be embedded in the 3rd inclinometer pipe in dredging silt bottom foundation ditch, measure respectively the outer ground settlement of foundation ditch, The deformation of support pile and the uplift capacity of foundation ditch bottom sludge, and
Along different some pore pressure meters that vertically degree of depth is buried underground of the outer same plane position, earth's surface of foundation ditch, it is used for measuring outside foundation ditch Pore water pressure under mud different depth, and
It is pasted on the some foil gauges tiltedly throwing support surface, measures and tiltedly throw the support deflection when excavation of foundation pit;
Described mechanical control system includes a hydraulic jack;
Foundation ditch outer ground settlement, the deformation of support pile, the foundation ditch bottom sludge that described Based Intelligent Control component collection is actually measured Uplift capacity, pore water pressure under the outer mud different depth of foundation ditch, tiltedly throw the monitoring of the support deflection when excavation of foundation pit Data, and be analyzed with the result of calculation in design document, when Monitoring Data differs greatly with design calculation result Time, it is steady with the supporting overall to foundation ditch to tiltedly throwing support end Shi Hanzhang that Based Intelligent Control element controls described hydraulic jack Surely it is adjusted.
Preferably, described foil gauge is pasted with at least 3 along the axis direction tiltedly throwing support.
Preferably, described oblique throwing support is a steel pipe or the assembly of many steel pipes.
The support structure of tiltedly throwing of the present invention makes the muck soil level of foundation pit side-wall cushion cap bottom Stress Transfer to foundation ditch and resists In sliding pile, make the level of muck soil of foundation pit side-wall to the top macroscopic destruction institute of stress Yu foundation ditch bottom sludge matter mud The protuberance produced balances each other.On the other hand, it is arranged in the foil gauge in tiltedly throwing support by axially stickup, along foundation ditch other places The pore pressure meter that the table degree of depth downward vertically is buried underground and in being embedded in support pile, at the outer earth's surface of foundation ditch and in foundation ditch bottom sludge soil Inclinometer pipe can monitor in real time tiltedly throw the deformation of support, the pore water pressure change of the outer mud of foundation ditch and the deformation of support pile, The outer ground settlement of foundation ditch and the uplift capacity of foundation ditch bottom sludge, and the data they recorded are transferred to Based Intelligent Control in real time Element, through the Based Intelligent Control element analyzing and processing to these data, then controls hydraulic jack and is adjusted tiltedly throwing support Control, to meet the support action of the foundation ditch to silt soil region.The intelligent deformation regulation of the present invention tiltedly throws support by certainly Power suffered by body carries out supporting to the foundation ditch in dredging silt soil district, and this is for reducing support pile deformation, the outer earth's surface of foundation ditch Sedimentation and foundation ditch bottom sludge protuberance are significant.
Accompanying drawing explanation
Fig. 1 is the schematic diagram that support support form is tiltedly thrown in intelligent deformation regulation;
Fig. 2 is the schematic diagram tiltedly throwing support support form.
Fig. 3 is the earth's surface horizontal range away from support pile and the graph of a relation of subsidence value after support pile, shows monitor value and meter in figure Calculate value difference different less.
Fig. 4 is the graph of a relation of support pile horizontal displacement and support pile buried depth, and in figure, the monitor value of display is less with value of calculation difference.
Fig. 5 is the earth's surface horizontal range away from support pile and the graph of a relation of subsidence value after support pile, monitors in figure before vision-control Value differs greatly with value of calculation, and the outer surface subsidence monitoring value of the foundation ditch after being adjusted is less with value of calculation difference.
Fig. 6 is the graph of a relation of support pile horizontal displacement and support pile buried depth, the monitor value before vision-control and value of calculation difference in figure Relatively big, the support pile horizontal displacement monitoring value being adjusted is less with value of calculation difference.
Fig. 7 is the uplift capacity graph of a relation of horizontal range away from support pile and foundation ditch bottom soil body bottom foundation ditch, in figure before vision-control Monitor value differs greatly with value of calculation, and at the bottom of the monitoring foundation ditch being adjusted, mud protuberance value is less with value of calculation difference.
In figure, foundation ditch 100, pore pressure meter 101, support pile 102, tiltedly throw support 103, foil gauge 104, cushion cap 105, friction pile 106, the first inclinometer pipe 107, the second inclinometer pipe 108, the 3rd inclinometer pipe 109, Based Intelligent Control element 110, hydraulic jack Top 110, mud 1000
Detailed description of the invention
Should be understood that the upper and lower, left and right in this specification, upwards, downwards, to the left, to the right directional terms be For the description in the orientation shown in accompanying drawing, these orientation are not restrictive.Without certain illustrated, herein Term is inside, outside, inside and outside, inner side, outside refer to the scope relative to part centre, such as with 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 Centre.Additionally, term level, hold up, the term such as pendency is not offered as requiring parts abswolute level or pendency, and Permission can be slightly tilted.As level simply means to for its direction opposed vertical more level, it is not to represent that this structure is wanted Perfectly level, but can be slightly tilted.
Fig. 1 and Fig. 2 below in conjunction with the accompanying drawings, the realization to the present invention is described in detail.
The present invention for dredging silt matter soil district foundation ditch can intelligent deformation regulation tiltedly throw support support system, including tiltedly throwing Support supporting construction, data collecting system, mechanical control system and Based Intelligent Control element.
Wherein, as in figure 2 it is shown, tiltedly throw support supporting construction to include support pile 102, cushion cap 105, tiltedly throwing support 103 and antiskid Stake 106.Support pile 102 is arranged along foundation ditch 100 sidewall, vertically inserts among the dredging silt 1000 of foundation ditch.Cushion cap is horizontal Cross section is right-angled trapezium, and hypotenuse is towards tiltedly throwing support 103 and support pile 102.Friction pile 106 it is provided with bottom cushion cap 105, Cushion cap 105 is provided a supporting role.Tiltedly throwing the support of support 103 one end to be fixed on support pile 102, the other end supports fixing Inclined-plane in cushion cap 105.Cushion cap 105, as shown in Fig. 1 Fig. 2, arranges and is suspended on the soil body bottom foundation ditch, permissible It is conveniently adjusted and tiltedly throws the jack device 110 in support 103.Meanwhile, the bottom of cushion cap 105 is connected with friction pile 106 Can be efficiently transferred on friction pile 106 tiltedly throwing pressure experienced in support 103, such transmission mechanical behavior makes Whole foundation pit supporting construction stress trend is clear and can easily be accommodated the deformation controlling to make supporting construction holding safer And stress.
As it is shown in figure 1, described data collecting system include being embedded in some first inclinometer pipes 107 at the outer earth's surface of foundation ditch, Some second inclinometer pipes 108 of being embedded in support pile 102, it is embedded in the 3rd inclinometer pipe in dredging silt bottom foundation ditch 109, measure the outer ground settlement of foundation ditch, the deformation of support pile and the uplift capacity of foundation ditch bottom sludge respectively.Along foundation ditch other places The different vertically degree of depth of table same plane position are embedded with multiple pore pressure meter 101, are used for measuring the outer mud different depth of foundation ditch Under pore water pressure.There are at least three pieces of foil gauges 104 along the axis direction tiltedly throwing support at its surface mount, are used for measuring Tiltedly throw the support deflection when excavation of foundation pit.
Mechanical control system includes a hydraulic jack 110, is connected with tiltedly throwing support 104, and Shi Hanzhang in advance.
Based Intelligent Control element 110 collects actually measured foundation ditch outer ground settlement, the deformation of support pile, foundation ditch bottom sludge Uplift capacity, pore water pressure under the outer mud different depth of foundation ditch, tiltedly throw the monitoring of the support deflection when excavation of foundation pit Data, and be analyzed with the result of calculation in design document, when Monitoring Data differs greatly with design calculation result Time, Based Intelligent Control element controls described hydraulic jack 110 to tiltedly throwing support end Shi Hanzhang to prop up foundation ditch entirety Protect and be stably adjusted, to meet the support action to foundation ditch, so can realize the real-time prison tiltedly throwing support supporting construction Survey and regulate control in real time.
As shown in Figure 3, Figure 4, Based Intelligent Control element 110 collects actually measured foundation ditch outer ground settlement, support pile Pore water pressure, oblique throwing support under deformation, the outer mud different depth of the uplift capacity of foundation ditch bottom sludge, foundation ditch are opened at foundation ditch The Monitoring Data of deflection when digging, and be analyzed with the result of calculation in design document, when monitoring result and meter Calculate result close to time, it is believed that supporting construction can ensure that base pit engineering is stable and safety, it is not necessary to is adjusted.
As shown in Fig. 5, Fig. 6, Fig. 7, Based Intelligent Control element 110 collects actually measured foundation ditch outer ground settlement, supporting Pore water pressure, oblique throwing under the deformation of stake, the uplift capacity of foundation ditch bottom sludge, the outer mud different depth of foundation ditch are supportted at base The Monitoring Data of the deflection during excavation of hole, and be analyzed with the result of calculation in design document, work as monitoring result When differing bigger with result of calculation, data processing centre automatically controls hydraulic jack and carries out Stress control, improves supporting knot The stress of structure, and the monitoring result after regulation is analyzed with result of calculation, when monitor value (bag after regulation simultaneously Include the outer ground settlement of foundation ditch, support pile deformation, the mud uplift capacity bottom foundation ditch) close to the when of calculating safety value, can To think that supporting construction can ensure that base pit engineering is stablized and safety, it is not necessary to be adjusted.
The present invention includes, but are not limited to above-described embodiment and content shown in the drawings, other all with the technical side of the present invention Case has within the product structure of identical essentiality content each falls within protection scope of the present invention.

Claims (3)

1. be used for dredging silt matter soil district foundation ditch tiltedly throwing of intelligent deformation regulation can support a support system, and its feature exists In: include tiltedly throwing support supporting construction, data collecting system, mechanical control system and Based Intelligent Control element,
Described oblique support supporting construction of throwing includes
Support pile, arranges along foundation pit side-wall, vertically inserts among the dredging silt of foundation ditch,
Cushion cap, flying shore is more than foundation ditch earth's surface, and cushion cap cross section is right-angled trapezium, and
Friction pile, is arranged at bottom cushion cap, for cushion cap is provided a supporting role, and
Tiltedly throw support, support and be fixedly connected between support pile pile body and cushion cap inclined-plane;
Described data collecting system includes being embedded in some first inclinometer pipes at the outer earth's surface of foundation ditch, is embedded in support pile Some second inclinometer pipes, be embedded in the 3rd inclinometer pipe in dredging silt bottom foundation ditch, measure respectively the outer ground settlement of foundation ditch, The deformation of support pile and the uplift capacity of foundation ditch bottom sludge, and
Along different some pore pressure meters that vertically degree of depth is buried underground of the outer same plane position, earth's surface of foundation ditch, it is used for measuring outside foundation ditch Pore water pressure under mud different depth, and
It is pasted on the some foil gauges tiltedly throwing support surface, measures and tiltedly throw the support deflection when excavation of foundation pit;
Described mechanical control system includes a hydraulic jack;
Foundation ditch outer ground settlement, the deformation of support pile, the foundation ditch bottom sludge that described Based Intelligent Control component collection is actually measured Uplift capacity, pore water pressure under the outer mud different depth of foundation ditch, tiltedly throw the monitoring of the support deflection when excavation of foundation pit Data, and be analyzed with the result of calculation in design document, when Monitoring Data differs greatly with design calculation result Time, it is steady with the supporting overall to foundation ditch to tiltedly throwing support end Shi Hanzhang that Based Intelligent Control element controls described hydraulic jack Surely it is adjusted.
The most according to claim 1 for dredging silt matter soil district foundation ditch can intelligent deformation regulation tiltedly throw support supporting system System, it is characterised in that: described foil gauge is pasted with at least 3 along the axis direction tiltedly throwing support.
The most according to claim 1 for dredging silt matter soil district foundation ditch can intelligent deformation regulation tiltedly throw support supporting system System, it is characterised in that: described oblique throwing support is a steel pipe or the assembly of many steel pipes.
CN201510194561.4A 2015-04-22 2015-04-22 A kind of for dredging silt matter soil district foundation ditch can intelligent deformation regulation tiltedly throw support support system CN104746522B (en)

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JP4389316B2 (en) * 2000-01-17 2009-12-24 株式会社大林組 Measurement management method during earth retaining excavation, measurement management system during earth retaining excavation, and recording medium recording a computer program for realizing the measurement management system during earth retaining excavation
CN2647920Y (en) * 2003-07-23 2004-10-13 顺德市永基建筑基础有限公司 Diagonal post supporting ground hole for construction
CN101294390B (en) * 2007-04-27 2010-09-08 上海市第五建筑有限公司 Support system and construction method for smoothening-digging partial center island foundation pit
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CN103074898B (en) * 2013-01-18 2015-09-23 江苏鸿基科技有限公司 Multi-row pile foundation pit support structure and construction method thereof
CN204551489U (en) * 2015-04-22 2015-08-12 国家海洋局南海海洋工程勘察与环境研究院 A kind ofly oblique throwings that regulate of intelligent deformation can support support system for dredging silt matter soil district foundation ditch

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