CN105239606A - Inter-pile freezing structure of deep underground space and constructing method - Google Patents
Inter-pile freezing structure of deep underground space and constructing method Download PDFInfo
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- CN105239606A CN105239606A CN201510729842.5A CN201510729842A CN105239606A CN 105239606 A CN105239606 A CN 105239606A CN 201510729842 A CN201510729842 A CN 201510729842A CN 105239606 A CN105239606 A CN 105239606A
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Abstract
The invention discloses an inter-pile freezing structure of a deep underground space. The inter-pile freezing structure of the deep underground space comprises row pile structures and a freezing wall structure, and the freezing wall structure is arranged between the row pile structures.
Description
Technical field
The present invention relates to underground space water-stop technology field, frozen structure and construction method between the stake particularly relating to a kind of Deep underground space.
Background technology
Along with the development of Chinese society economy, urban population increases fast, the corresponding reduction of life area per capita, this makes urban land area progressively change solid space development into, namely in limited urban space by planar development, Devoting Major Efforts To Developing and utilize urban underground space, along with the continuous increase of cutting depth, underground construction will face the problems such as highland pressure, high hydraulic pressure, and this also causes the inapplicable deeper subsurface environment of traditional supporting method, for this reason, need to introduce new support pattern.
In numerous urban underground space supporting method, campshed method so that its construction is simple, convenient, with low cost etc., be used widely by advantage, but, due to the restriction of the factors such as the connection between stake and stake and pile defect, make the sealing performance of campshed poor, and be not suitable for deep underground construction, the deep engineering of especially rich water.
Between the stake therefore wishing a kind of Deep underground space, frozen structure and construction method overcome or at least alleviate above-mentioned defect.
Summary of the invention
To the object of the present invention is to provide between a kind of stake of Deep underground space frozen structure and construction method to overcome the above-mentioned problems in the prior art.
For achieving the above object, between the stake that the invention provides a kind of Deep underground space, frozen structure comprises: piling structure and frost wall structure, described frost wall vibrational power flow is between each piling structure described.
Preferably, described frost wall structure comprises: freezing pipe, feed tube, drain pipe, liquid distribution pipe, chiller plant and collector tube, described feed tube and drain pipe are arranged in described freezing pipe, and one end of described feed tube connects described liquid distribution pipe, and described liquid distribution pipe connects described chiller plant; One end of described drain pipe connects described collector tube, and described collector tube connects described chiller plant, and described liquid distribution pipe and collector tube are formed and freeze loop.
Preferably, the quantity of described frost wall structure and piling structure is all more than or equal to 1.
Preferably, described piling structure is arranged in order orthogonal.
A frozen construction method between the stake of Deep underground space, comprises the following steps:
(1) piling structure construction: the stake point construction pile determined according to different pile modes;
(2) frost wall structure construction: freezing pipe is installed in boring between adjacent two campsheds, feed tube and liquid back pipe is inserted in described freezing pipe, feed tube is connected liquid distribution pipe and collector tube respectively with the other end of liquid back pipe, and liquid distribution pipe is connected ground refrigeration station with collector tube;
(3) formation of frost wall: piling structure and frost wall structure construction complete, after inspection, start described ground refrigeration station, make low temperature CaCl2 solution at described freezing pipe Inner eycle, by measuring and analyze temperature tube embedding in advance and hydrology pipe data, determining temperature and the thickness of frost wall, when reaching designing requirement, can Underground Engineering Excavation work be carried out;
(4) freezing pipe recovery: after underground structure has been constructed, can adopt nature to thaw or the scheme of artificial quick-thawing recovers Groundwater Flow, extracts described freezing pipe, manually backfills freezing hole, complete whole underground engineering construction operation.
Frozen structure and construction method between the stake that the invention provides a kind of Deep underground space, described Deep underground space excavation supporting have employed campshed and freezes combined retaining structure, campshed primary responsibility safeguards that foundation ditch is stablized, freezing pipe forms frost wall and prevents underground water from entering operation side, after construction completes, by naturally thawing or artificial quick-thawing, recover former Groundwater Flow path, whole work progress does not impact groundwater environment; And the temperature-controllable of frost wall, rational project of shaft freezing and Design of Construction Organization effectively can reduce and freeze required electric energy.
Accompanying drawing explanation
Fig. 1 be Deep underground space stake between the floor map of frozen structure.
Fig. 2 be Deep underground space stake between the schematic top plan view of frozen structure.
Fig. 3 be Deep underground space stake between the schematic front view of frozen structure.
Fig. 4 is frozen structure schematic diagram between stake when having an impervious layer in the deeper subsurface end, hole.
Detailed description of the invention
For making object of the invention process, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is further described in more detail.In the accompanying drawings, same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Described embodiment is the present invention's part embodiment, instead of whole embodiments.Be exemplary below by the embodiment be described with reference to the drawings, be intended to for explaining the present invention, and can not limitation of the present invention be interpreted as.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.Below in conjunction with accompanying drawing, embodiments of the invention are described in detail.
In describing the invention; it will be appreciated that; term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward " etc. instruction orientation or position relationship be based on orientation shown in the drawings or position relationship; be only the present invention for convenience of description and simplified characterization; instead of instruction or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limiting the scope of the invention.
Freezing process mainly relies on artificial cooling technology to be frozen by the water in stratum, form waterproof curtain, engineering excavation carries out in curtain, after construction completes, freeze ice curtain thaw, recover former Groundwater Flow path, whole work progress prosthetic material enters underground, does not impact groundwater environment, is a kind of construction technology of environmental protection.
In the present invention one broad embodiment: between a kind of stake of Deep underground space, frozen structure comprises: piling structure and frost wall structure, described frost wall vibrational power flow is between each piling structure described.
In another broad embodiment of the present invention: a kind of frozen construction method between stake of Deep underground space, comprises the following steps:
(1) piling structure construction: the stake point construction pile determined according to different pile modes;
(2) frost wall structure construction: freezing pipe is installed in boring between adjacent two campsheds, feed tube and liquid back pipe is inserted in described freezing pipe, feed tube is connected liquid distribution pipe and collector tube respectively with the other end of liquid back pipe, and liquid distribution pipe is connected ground refrigeration station with collector tube;
(3) formation of frost wall: piling structure and frost wall structure construction complete, after inspection, start described ground refrigeration station, make low temperature CaCl2 solution at described freezing pipe Inner eycle, by measuring and analyze temperature tube embedding in advance and hydrology pipe data, determining temperature and the thickness of frost wall, when reaching designing requirement, can Underground Engineering Excavation work be carried out;
(4) freezing pipe recovery: after underground structure has been constructed, can adopt nature to thaw or the scheme of artificial quick-thawing recovers Groundwater Flow, extracts described freezing pipe, manually backfills freezing hole, complete whole underground engineering construction operation.
As shown in Figure 1,2 and 3, between the stake of Deep underground space, frozen structure comprises: piling structure 1 and frost wall structure 2, and described frost wall structure 2 is arranged between each piling structure 1 described.
As shown in Figure 2, described frost wall structure 2 comprises: frost wall 3, freezing pipe 6, feed tube 4 and drain pipe 5, and described feed tube 4 and drain pipe 5 are arranged in described freezing pipe 6, and described frost wall 3 is formed around the outside of described freezing pipe 6.
In a not shown embodiment, described frost wall structure also comprises: liquid distribution pipe, chiller plant and collector tube, and one end of described feed tube connects described liquid distribution pipe, and described liquid distribution pipe connects described chiller plant; One end of described drain pipe connects described collector tube, and described collector tube connects described chiller plant, and described liquid distribution pipe and collector tube are formed and freeze loop.
As shown in Figure 1, between the stake of Deep underground space, frozen structure comprises: 26 piling structures 1 and 26 frost wall structures 2.
As shown in Figure 1, described 26 piling structures 1 are arranged in order orthogonal.
In a not shown embodiment, frozen construction method between the stake of Deep underground space, comprises the following steps:
(1) piling structure construction: the stake point construction pile determined according to different pile modes;
(2) frost wall structure construction: freezing pipe is installed in boring between adjacent two campsheds, feed tube and liquid back pipe is inserted in described freezing pipe, feed tube is connected liquid distribution pipe and collector tube respectively with the other end of liquid back pipe, and liquid distribution pipe is connected ground refrigeration station with collector tube;
(3) formation of frost wall: piling structure and frost wall structure construction complete, after inspection, starts described ground refrigeration station, makes low temperature CaCl
2solution, at described freezing pipe Inner eycle, by measuring and analyze temperature tube embedding in advance and hydrology pipe data, determines temperature and the thickness of frost wall, when reaching designing requirement, can carry out Underground Engineering Excavation work;
(4) freezing pipe recovery: after underground structure has been constructed, can adopt nature to thaw or the scheme of artificial quick-thawing recovers Groundwater Flow, extracts described freezing pipe, manually backfills freezing hole, complete whole underground engineering construction operation.
Finally it is to be noted: above embodiment only in order to technical scheme of the present invention to be described, is not intended to limit.Although with reference to previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (5)
1. a frozen structure between the stake of Deep underground space, its feature exists, and comprising: piling structure and frost wall structure, and described frost wall vibrational power flow is between each piling structure described.
2. frozen structure between the stake of Deep underground space as claimed in claim 1, it is characterized in that: described frost wall structure comprises: freezing pipe, feed tube, drain pipe, liquid distribution pipe, chiller plant and collector tube, described feed tube and drain pipe are arranged in described freezing pipe, one end of described feed tube connects described liquid distribution pipe, and described liquid distribution pipe connects described chiller plant; One end of described drain pipe connects described collector tube, and described collector tube connects described chiller plant, and described liquid distribution pipe and collector tube are formed and freeze loop.
3. frozen structure between the stake of Deep underground space as claimed in claim 1, is characterized in that: the quantity of described frost wall structure and piling structure is all more than or equal to 1.
4. frozen structure between the stake of Deep underground space as claimed in claim 3, is characterized in that: described piling structure is arranged in order orthogonal.
5. a frozen structure construction method between the stake of Deep underground space, is characterized in that, comprise the following steps:
(1) piling structure construction: the stake point construction pile determined according to different pile modes;
(2) frost wall structure construction: freezing pipe is installed in boring between adjacent two campsheds, feed tube and liquid back pipe is inserted in described freezing pipe, feed tube is connected liquid distribution pipe and collector tube respectively with the other end of liquid back pipe, and liquid distribution pipe is connected ground refrigeration station with collector tube;
(3) formation of frost wall: piling structure and frost wall structure construction complete, after inspection, start described ground refrigeration station, make low temperature CaCl2 solution at described freezing pipe Inner eycle, by measuring and analyze temperature tube embedding in advance and hydrology pipe data, determining temperature and the thickness of frost wall, when reaching designing requirement, can Underground Engineering Excavation work be carried out;
(4) freezing pipe recovery: after underground structure has been constructed, can adopt nature to thaw or the scheme of artificial quick-thawing recovers Groundwater Flow, extracts described freezing pipe, manually backfills freezing hole, complete whole underground engineering construction operation.
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| CN201510729842.5A CN105239606A (en) | 2015-10-31 | 2015-10-31 | Inter-pile freezing structure of deep underground space and constructing method |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105951861A (en) * | 2016-06-24 | 2016-09-21 | 北京城建集团有限责任公司 | Lateral freezing bottom-making water stop structure for underground excavated foundation pit of urban sensitive area and method |
| CN105951860A (en) * | 2016-06-24 | 2016-09-21 | 北京城建集团有限责任公司 | Slanting freezing bottom-making water stop structure for interior and side faces of underground excavated foundation pit and method |
| CN106120827A (en) * | 2016-06-23 | 2016-11-16 | 北京城建集团有限责任公司 | Freeze to make end water-bound and method inside a kind of sensitizing range, city tunneling foundation ditch |
| CN107059841A (en) * | 2017-05-05 | 2017-08-18 | 李延川 | Underground space supporting construction and construction method |
| CN108442416A (en) * | 2018-06-20 | 2018-08-24 | 北京城建集团有限责任公司 | A kind of pilot tunnel upright side walls level that extends out being used for 8 pilot tunnel PBA engineering methods makes bottom basin shape and freezes sealing engineering method |
| CN108457307A (en) * | 2018-06-20 | 2018-08-28 | 北京城建集团有限责任公司 | A kind of leading pilot tunnel upright side walls level being used for 4/6/8 pilot tunnel PBA engineering methods makes bottom basin shape and freezes sealing engineering method |
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2015
- 2015-10-31 CN CN201510729842.5A patent/CN105239606A/en active Pending
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| 沈忠群: "排桩冻结法在润扬长江公路大桥基础施工中的应用", 《中国公路学会2003年学术年会论文集》 * |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106120827A (en) * | 2016-06-23 | 2016-11-16 | 北京城建集团有限责任公司 | Freeze to make end water-bound and method inside a kind of sensitizing range, city tunneling foundation ditch |
| CN105951861A (en) * | 2016-06-24 | 2016-09-21 | 北京城建集团有限责任公司 | Lateral freezing bottom-making water stop structure for underground excavated foundation pit of urban sensitive area and method |
| CN105951860A (en) * | 2016-06-24 | 2016-09-21 | 北京城建集团有限责任公司 | Slanting freezing bottom-making water stop structure for interior and side faces of underground excavated foundation pit and method |
| CN107059841A (en) * | 2017-05-05 | 2017-08-18 | 李延川 | Underground space supporting construction and construction method |
| CN108442416A (en) * | 2018-06-20 | 2018-08-24 | 北京城建集团有限责任公司 | A kind of pilot tunnel upright side walls level that extends out being used for 8 pilot tunnel PBA engineering methods makes bottom basin shape and freezes sealing engineering method |
| CN108457307A (en) * | 2018-06-20 | 2018-08-28 | 北京城建集团有限责任公司 | A kind of leading pilot tunnel upright side walls level being used for 4/6/8 pilot tunnel PBA engineering methods makes bottom basin shape and freezes sealing engineering method |
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Inventor after: Zhang Jinxun Inventor after: Jiang Yusheng Inventor after: Jiang Hua Inventor after: Wu Fumei Inventor after: Yang Hao Inventor before: Jiang Yusheng Inventor before: Jiang Hua Inventor before: Zhang Jinxun Inventor before: Wu Fumei Inventor before: Yang Hao |
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Effective date of registration: 20160608 Address after: 100088 Haidian District, North Beijing, Tai Ping Road, No. 18 Applicant after: Beijing City Building Group Co., Ltd. Applicant after: China University of Mining & Technology, Beijing Applicant after: BEIJING URBAN CONSTRUCTION DESIGN & DEVELOPMENT GROUP CO., LIMITED Address before: 100083 Beijing City, Haidian District Institute of Rutosids No. 11 Applicant before: China University of Mining & Technology, Beijing Applicant before: Beijing City Building Group Co., Ltd. |
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