CN102650133A - Method and object for constructing half top-down deep base pit supporting structure of side frame - Google Patents
Method and object for constructing half top-down deep base pit supporting structure of side frame Download PDFInfo
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- CN102650133A CN102650133A CN2012101161478A CN201210116147A CN102650133A CN 102650133 A CN102650133 A CN 102650133A CN 2012101161478 A CN2012101161478 A CN 2012101161478A CN 201210116147 A CN201210116147 A CN 201210116147A CN 102650133 A CN102650133 A CN 102650133A
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Abstract
The invention discloses a method and an object for constructing a half top-down deep base pit supporting structure of a side frame. The method is suitable for large-plane-size deep base pit engineering in a soft soil area. One to two vertical and horizontal members and a peripheral filling pile in the peripheral direction of a base pit constructed in advance form a lateral resisting system of a frame-shear wall (steel support) so as to resist soil pressure; the frame-shear wall (steel support) in the range of the side frame is arranged from top to bottom; a basement outer wall and the rest basement main body structure are arranged from bottom to top; and in the deep base pit supporting structure constructed by the method, the bored filling pile and the vertical members are connected through a joint of a reinforced concrete beam, and a reinforced masonry shear wall or the steel support is configured in the interior of the deep base pit supporting structure so as to form a frame-shear wall structure. The invention has the benefits as follows: the support does not need to be removed by blasting in a later period; the method is suitable for large-plane-size deep base pit engineering, and horizontal and vertical supporting columns are eliminated; all basement structure floorslabs do not need to be constructed at first in an early period, and the base pit is open, so that the soil can be conveniently excavated.
Description
Technical field
The present invention relates to a kind of frame half against making the deep foundation pit support technology, belong to the design and the building technology field of soft clay area deep foundation pit support.
Background technology
At present, the routine techniques scheme of soft clay area deep foundation pit support is mainly divided two big types, and one type for adopting the suitable practice of water-stop curtain+bored pile prop+steel concrete (steel pipe) horizontal support.Another kind of contrary sequence method for adopting diaphragm wall prop+structure floor beam plate level to support.Be widely used on the former engineering, reasonable stress, but it is often bigger to support section, also needs demolition blasting during the construction in later period basement structure, and not only expensive time-consuming, and not environmental protection.The latter is nervous at the engineering land used, and peripheral subsurface picture complex region is used more, and advantage is that supporting and protection structure rigidity is big, is out of shape little; Little to peripheral site influence, braced structures replaces with later stage engineering floor, cuts the waste; Shortcoming is that the column quantity of support floor is many, complex structure, and the large tracts of land structure floor is construction in advance; Engineering precision is difficult to guarantee that totally-enclosed floor is cut the earth unearthed difficult, and difficulty of construction is big.
Summary of the invention
Need explosion to tear support open in order to overcome along the practice later stage, expensive time-consuming defective and contrary sequence method increase a large amount of the support and column, and construction technology is complicated; The deficiency of the difficulty of cut the earth being unearthed, the present invention proposes a kind of frame half contrary construction process of doing of new soft clay area deep foundation pit support, not needing to be characterized in the later stage explosion to tear support open; The whole basement floor of also need in advance not constructing; Both saved cost, environmental protection, it is unearthed difficult to avoid foundation ditch to cut the earth again, the increase of difficulty of construction.
The frame half contrary construction process of making deep foundation pit supporting structure comprises the steps:
Top-down contrary work of step 3, frame scope inner frame-shear wall (steel support), outer wall of basement and all the other basement agent structures then from bottom to top along doing.
Construction according to construction process of the present invention; Comprise bored pile, water-stop curtain, vertical member, steel concrete crossbeam, the floor of node are set; Described vertical member comprises shaped steel lattice column and steel core concrete column; Described bored pile and described water-stop curtain are arranged on the periphery of the inner outer wall of basement of foundation ditch, and described water-stop curtain is positioned at outermost; It is characterized in that: described bored pile and described steel concrete crossbeam enclose purlin through castinplace pile to be fixed; Described bored pile, vertical member connect through the node of described steel concrete crossbeam, form the gate-type frame; Reinforced masonry shear wall or steel are set between described vertical member and the described bored pile support, form framework-shear wall (steel support) structure.
Described vertical member be positioned at foundation ditch inside along outer wall of basement circumferential one to two stride scope.
Be positioned at the inner described steel concrete crossbeam of described exterior wall and vertical sealing sheet be set with floor.
The invention has the beneficial effects as follows: 1) foundation ditch inside only depends on one to two of nearly outer wall of basement to stride has a circle shirt rim structure all around in the scope, the shirt rim structure is used as the later stage permanent structure, does not cause waste; 2) later stage does not have explosion and tears support operation, environmental protection open; 3) be particularly suitable for the bigger deep-foundation pit engineering of planar dimension, save the horizontal support elements and vertical support post of One's name is legion, economic benefit is obvious; 4) early stage whole basement structure floors that need not in advance to construct, foundation ditch is inner spacious, the tunneling operation the structure floor of shirt rim under is few, cuts the earth to be unearthed conveniently; 5) later stage reinforced masonry shear wall (steel support) is removed simple and feasible.
Description of drawings
Fig. 1 is a plan view of the present invention
Fig. 2 is a part plan enlarged drawing of the present invention
Fig. 3 is an A-A sectional drawing of the present invention
Fig. 4 is a B-B sectional drawing of the present invention
Fig. 5 is that node of the present invention connects enlarged drawing
Fig. 6 is the 1-1 sectional view of node of the present invention
The specific embodiment
Further specify the present invention below in conjunction with accompanying drawing
With reference to accompanying drawing:
The frame half contrary construction process of making deep foundation pit supporting structure comprises the steps:
The thought of step 1, reference superstructure layout lateral resistant member is utilized near one to two of outer wall of basement 6 and is striden vertical member 3 and peripheral bored pile 1 and the steel concrete crossbeam 4 and a gate-type frame of floor 5 formation of getting in touch the two;
Top-down contrary work of step 3, frame scope inner frame-shear wall (steel support), outer wall of basement 6 and all the other basement agent structures then from bottom to top along doing.
Construction according to construction process of the present invention; Comprise bored pile 1, water-stop curtain 2, vertical member 3, the steel concrete crossbeam 4 that node is set, floor 5; Described vertical member 3 comprises shaped steel lattice column 31 and steel core concrete column 32; Described bored pile 1 and described water-stop curtain 2 are arranged on the periphery of the inner outer wall of basement 6 of foundation ditch, and described water-stop curtain 2 is positioned at outermost; Described bored pile 1 encloses purlin 11 with described steel concrete crossbeam 4 through castinplace pile to be fixed; Described bored pile 1, vertical member 3 connect through the node of described steel concrete crossbeam 4, form the gate-type frame; Reinforced masonry shear wall or steel are set between described vertical member 3 and the described bored pile 1 support, form framework-shear wall (steel support).
Described vertical member 3 be positioned at foundation ditch inside along outer wall of basement 6 circumferential one to two stride scope.
Be positioned at described exterior wall 6 inner described steel concrete crossbeams 4 and vertical sealing sheet 321 be set with floor 5.
With three layers of basement is example; The practical implementation process of present technique scheme is following, the first step, peripheral bored pile of construction foundation pit and water-stop curtain; And the castinplace pile of striding vertical member (comprise steel core concrete column with interim shaped steel lattice column) near one to two of outer wall of basement; And in castinplace pile, inserting steel pipe and shaped steel, placing of concrete forms steel core concrete column, the precipitation well of constructing simultaneously in steel pipe; In second step, the basement that encloses in purlin and the frame scope on the peripheral castinplace pile top of constructing is born one deck top board structure beam slab; In the 3rd step, earth excavation is to negative two layers of top board, and the basement that the second road castinplace pile of constructing encloses in purlin and the frame scope is born the reinforced masonry shear wall (steel support) in two layers of top board structure beam slab and the frame; In the 4th step, earth excavation is to negative three layers of top board, and the basement that the 3rd road castinplace pile of constructing encloses in purlin and the frame scope is born the reinforced masonry shear wall (steel support) in three layers of top board structure beam slab and the frame; In the 5th step, at the bottom of earth excavation to the foundation ditch, build cushion cap and base plate; The 6th step, all the other basement agent structures in construction outer wall of basement from bottom to top and the foundation ditch; The 7th step, remove interim shaped steel lattice support post and reinforced masonry shear wall (steel support), accomplish the peripheral soil body backfill of basement.
The described content of this manual embodiment only is enumerating the way of realization of inventive concept; Should not being regarded as of protection scope of the present invention only limits to the concrete form that embodiment states, protection scope of the present invention also reach in those skilled in the art conceive according to the present invention the equivalent technologies means that can expect.
Claims (4)
1. the frame half contrary construction process of making deep foundation pit supporting structure comprises the steps:
Step 1, reference superstructure are arranged the thought of lateral resistant member, utilize near one to two of outer wall of basement and stride vertical member and peripheral bored pile and the steel concrete crossbeam and a gate-type frame of floor formation of getting in touch the two;
Step 2, reinforced masonry shear wall or steel are set between vertical member and bored pile support with the lateral resisting system of final formation framework-shear wall (steel supports) and resist foundation ditch periphery soil pressure;
Top-down contrary work of step 3, frame scope inner frame-shear wall (steel support), outer wall of basement and all the other basement agent structures then from bottom to top along doing.
2. the construction of building according to the described construction process of claim 1; Comprise bored pile, water-stop curtain, vertical member, steel concrete crossbeam, the floor of node are set; Described vertical member comprises shaped steel lattice column and steel core concrete column; Described bored pile and described water-stop curtain are arranged on the periphery of the inner outer wall of basement of foundation ditch, and described water-stop curtain is positioned at outermost; It is characterized in that: described bored pile and described steel concrete crossbeam enclose purlin through castinplace pile to be fixed; Described bored pile, vertical member connect through the node of described steel concrete crossbeam, form the gate-type frame; Reinforced masonry shear wall or steel are set between described vertical member and the described bored pile support, form framework-shear wall (steel support) structure.
3. construction as claimed in claim 2 is characterized in that: described vertical member be positioned at foundation ditch inside along outer wall of basement circumferential one to two stride scope.
4. construction as claimed in claim 3 is characterized in that: be positioned at the inner described steel concrete crossbeam of described exterior wall and with floor vertical sealing sheet be set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101161478A CN102650133A (en) | 2012-04-19 | 2012-04-19 | Method and object for constructing half top-down deep base pit supporting structure of side frame |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101161478A CN102650133A (en) | 2012-04-19 | 2012-04-19 | Method and object for constructing half top-down deep base pit supporting structure of side frame |
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| CN102650133A true CN102650133A (en) | 2012-08-29 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234082A (en) * | 2014-08-29 | 2014-12-24 | 中国电建集团华东勘测设计研究院有限公司 | Jump-layer reversed construction method for deep foundation pit |
| CN104404967A (en) * | 2014-11-26 | 2015-03-11 | 南京东大鸿基新技术发展有限公司 | Rigid frame foundation pit support structure and construction method |
| CN104594358A (en) * | 2015-01-07 | 2015-05-06 | 江苏中南建筑产业集团有限责任公司 | Sequential construction and reversed construction Clockwise and counter-clockwise combined construction method of irregular planar deep foundation pit |
| CN108643195A (en) * | 2018-06-27 | 2018-10-12 | 上海建工二建集团有限公司 | Integrated system and method for main body and supporting structure of foundation pit |
| CN110306557A (en) * | 2019-07-10 | 2019-10-08 | 武汉立诚岩土工程有限公司 | Earthwork digging method based on basement deep-foundation pit engineering |
| CN113718786A (en) * | 2021-07-22 | 2021-11-30 | 东南大学 | Deep foundation pit supporting structure applying space combination structure and construction method thereof |
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| JP2000054409A (en) * | 1998-08-05 | 2000-02-22 | Ohbayashi Corp | Work execution method of top-down construction stanchion in underground excavated space peripheral part |
| CN2835351Y (en) * | 2005-10-14 | 2006-11-08 | 浙江中成建工集团有限公司 | Horizontal supporting structure for reinforced concrete loop truss in deep foundation pit |
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| CN100543241C (en) * | 2007-08-22 | 2009-09-23 | 浙江大学 | Using the half contrary method of doing in a kind of underground construction one more |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104234082A (en) * | 2014-08-29 | 2014-12-24 | 中国电建集团华东勘测设计研究院有限公司 | Jump-layer reversed construction method for deep foundation pit |
| CN104404967A (en) * | 2014-11-26 | 2015-03-11 | 南京东大鸿基新技术发展有限公司 | Rigid frame foundation pit support structure and construction method |
| CN104404967B (en) * | 2014-11-26 | 2016-09-21 | 南京东大鸿基新技术发展有限公司 | Rigid frame posture internal support of foundation pit structure and construction method |
| CN104594358A (en) * | 2015-01-07 | 2015-05-06 | 江苏中南建筑产业集团有限责任公司 | Sequential construction and reversed construction Clockwise and counter-clockwise combined construction method of irregular planar deep foundation pit |
| CN104594358B (en) * | 2015-01-07 | 2017-01-18 | 江苏中南建筑产业集团有限责任公司 | Sequential construction and reversed construction Clockwise and counter-clockwise combined construction method of irregular planar deep foundation pit |
| CN108643195A (en) * | 2018-06-27 | 2018-10-12 | 上海建工二建集团有限公司 | Integrated system and method for main body and supporting structure of foundation pit |
| CN110306557A (en) * | 2019-07-10 | 2019-10-08 | 武汉立诚岩土工程有限公司 | Earthwork digging method based on basement deep-foundation pit engineering |
| CN110306557B (en) * | 2019-07-10 | 2021-04-13 | 武汉立诚岩土工程有限公司 | Earth excavation method based on basement deep foundation pit engineering |
| CN113718786A (en) * | 2021-07-22 | 2021-11-30 | 东南大学 | Deep foundation pit supporting structure applying space combination structure and construction method thereof |
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Application publication date: 20120829 |