CN105863649A - Underground space construction technique adopting underground excavation and causing little ruin to land surface - Google Patents

Underground space construction technique adopting underground excavation and causing little ruin to land surface Download PDF

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Publication number
CN105863649A
CN105863649A CN201610269152.0A CN201610269152A CN105863649A CN 105863649 A CN105863649 A CN 105863649A CN 201610269152 A CN201610269152 A CN 201610269152A CN 105863649 A CN105863649 A CN 105863649A
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CN
China
Prior art keywords
support
underground space
turn
hydraulic pressure
pressure temporary
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610269152.0A
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Chinese (zh)
Inventor
迟新宋
Original Assignee
迟新宋
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Publication date
Priority to CN201510814582 priority Critical
Priority to CN2015108145821 priority
Application filed by 迟新宋 filed Critical 迟新宋
Publication of CN105863649A publication Critical patent/CN105863649A/en
Pending legal-status Critical Current

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Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D11/00Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D19/00Provisional protective covers for working space
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • EFIXED CONSTRUCTIONS
    • E21EARTH DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/06Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining

Abstract

The invention discloses an underground space construction technique adopting underground excavation and causing little ruin to the land surface and belongs to the technical field of underground space development and construction. A ruined opening part is constructed with a well-sinking technology in a planned underground space section, and the area of the ruined opening part is 1%-2% that of an underground space building; the planned underground space is divided into multiple channels arranged at intervals, and all the channels are arranged in a communicating manner in the direction of the ruined opening part; a pipe joint is arranged in each channel with a pipe jacking method, horizontal pipe curtains and longitudinal pipe curtains are formed, steering supports used for supporting the pipe joints are arranged in the channels and comprise hydraulic temporary supports, a cushion plate and support pillars, after the hydraulic temporary supports are mounted below the pipe curtains, the support pillars are mounted on two sides and jacked through the cushion plate, the steering supports transfer upper loads to the foundation, after the strength of a main structure is 90% or higher, the hydraulic temporary supports are removed, and the support pillars are buried in the main structure in advance. The problems that the construction quality is poor in reliability, the construction efficiency is low and the building cost is high in the prior art can be solved.

Description

The underground space tunneling of a kind of earth's surface Wicresoft construct technology
Technical field
The present invention relates to the underground space tunneling of a kind of earth's surface Wicresoft constructs technology, belongs to underground space development and executes Work technical field.
Background technology
Along with the fast development of China's urban construction, urban land resource is the deficientest.In order to promote city soil Ground resource utilization, it is achieved the multiple use in soil, promotes the sustainable development in city, in urban green space, Carry out underground space three-dimensional under the existing facilities such as square, road, pipeline and be developed into the one of urban construction The demand of kind and development trend.
Utilizing space from transfer underground on the ground, in order to reduce the impact of facility existing on ground, get more and more Location needs to use subsurface excavation method to implement, and subsurface excavation method refers in urban architecture engineering, inside foundation soil body Directly excavation, without the construction method dug down from daylight, ground always.When typically constructing, generally adopt Making primary supporting with reinforced concrete lattice column, less anchor pole makees primary supporting, and this operational method forms primary Protecting that to reach supporting intensity slow, each country rock soil body is few, takes soil of appearing on the stage, leave from office soil will be according to the soil body every time Matter must not exceed how many, can only use and manually fetch earth, and construction efficiency is slow, and cost is high, dangerous big and logical It is often that upper load is firstly placed in a permanent support, then is become again load by permanent support, not only increase Cost, also can round the earthwork volume that support volume more, and during support, steel frame closed by general employing I-steel, Adding steel wire whitewashing, segmentation is supported, and speed of application is slow, and cost is high, and power transmission is indefinite.
Summary of the invention
For drawbacks described above present in prior art, the invention provides a kind of earth's surface Wicresoft underground space dark That digs constructs technology, and to solve, reliable construction quality in prior art is poor, construction efficiency slow and construction cost High problem.
The present invention is achieved by the following technical solution: constructing of a kind of earth's surface Wicresoft underground space tunneling Technology, is planning to build underground space location sink well technique construction wound surface oral area, and the area of described wound surface oral area is The 1%-2% of underground space building;The underground space planned to build is divided into multiple spaced passage, makes every Tube coupling all along the through setting in wound surface oral area direction, is arranged in each channel, shape by individual passage by push bench process It is open into pipe curtain and longitudinal pipe curtain, uses Mining Method and shield technique to carry out the supporting design and construction of pipe curtain; Be provided with in the channel and turn to support for support tube coupling, described in turn to support include hydraulic pressure temporary support, Backing plate and support column, after described hydraulic pressure temporary support is installed under pipe curtain, installs both sides support column, and pass through Backing plate holds out against, described in turn to support upper load is turned to ground, treat that agent structure intensity reaches more than 90%, Remove described hydraulic pressure temporary support, support column is embedded in agent structure in advance.
Further, turn to the fastness of support for increasing, described in turn to support also to include turning to support lattice Beam and bottom stress crossbeam, described in turn to the erection sequence of support to be: stress crossbeam bottom 1. installing → 2. pacify Dress hydraulic pressure temporary support → support lattice girder 3. will be turned to be placed in hydraulic pressure temporary support, makes hydraulic pressure temporary support On upper load reach top dead load 80% → 4. the support column on both sides → 5. prop up according to both sides is installed The distance of dagger and bottom stress crossbeam determines plate thickness, installs backing plate being held out against by backing plate → 6. treat main body Structural strength reaches more than 90%, hydraulic pressure temporary support is removed, and turns to support lattice girder and support column pre-buried In agent structure.
The compared with prior art major advantage of this invention:
(1) spacing every time fetched earth is big, and the maximum spacing that can fetch earth is 20 times of pipe curtain diameter, i.e. pipe curtain is straight When footpath is 0.22m, the spacing that can fetch earth is 4.4m, and the former theoretical theory native by country rock that fetch earth at most can fetch earth 0.75m, is not easy to dragline and fetches earth, and former fetching earth highly should not be greater than 2.2m, now fetches earth and highly can reach 3.6m, facilitates mechanical equivalent of light excavation depth demand.
(2) turn to arranging of support can save I-steel ccf layer and steel wire whitewashing, turn to support Hydraulic pressure temporary support is reusable, thus saves construction costs;
(3) using the construction method of the present invention, cost reduces, and speed of application improves, and construction loads transmits The most clearly, the safety in construction increases.
Accompanying drawing explanation
Fig. 1 is the structural representation of interconnection in the embodiment of the present invention;
Fig. 2 is the structural representation turning to support in the embodiment of the present invention;
In figure, 1, transverse pipe curtain, 2, longitudinal pipe curtain, 3, hydraulic pressure temporary support, 4, backing plate, 5, Dagger, 6, turn to support lattice girder, 7, bottom stress crossbeam, 8, pass through frame, 9, discharging opening, 10, Level ground, original place.
Detailed description of the invention
Below by the embodiment of indefiniteness and combine accompanying drawing the present invention is further illustrated:
Embodiments provide the technology of constructing of a kind of earth's surface Wicresoft underground space tunneling, specific as follows: The underground space tunneling of a kind of earth's surface Wicresoft construct technology, construct planning to build underground space location sink well technique Wound surface oral area, the 1%-2% that area is underground space building of described wound surface oral area;The underground space that will plan to build It is divided into multiple spaced passage, makes each passage all along the through setting in wound surface oral area direction, by top Tube coupling is arranged in each channel by tube method, forms transverse pipe curtain and longitudinal pipe curtain, uses Mining Method and shield Technology carries out the supporting design and construction of pipe curtain;It is provided with in the channel and turns to support for support tube coupling, Described turn to support to include hydraulic pressure temporary support, backing plate and support column, described hydraulic pressure temporary support are installed on pipe After curtain is lower, both sides support column is installed, and holds out against by backing plate, described in turn to support upper load turned to ground Base, treats that agent structure intensity reaches more than 90%, removes described hydraulic pressure temporary support, is embedded in advance by support column In agent structure.
Described turn to support also to include turning to support lattice girder and bottom stress crossbeam, described in turn to the peace of support Dress order is: bottom 1. installing, hydraulic pressure temporary support → 3. will turn to support lattice girder installed by stress crossbeam → 2. Be placed in hydraulic pressure temporary support, make the upper load in hydraulic pressure temporary support reach top dead load 80% → 4. the support column on both sides → 5. determine that backing plate is thick according to the distance of both sides support column Yu bottom stress crossbeam is installed Degree, installs backing plate and backing plate holds out against → 6. treat agent structure intensity reaches more than 90%, being propped up by hydraulic pressure temporarily Support is removed, and turns to support lattice girder and support column to be embedded in agent structure.
For turning to the design supporting lattice girder, generally pressing steel construction lattice girder and calculate cross section, convert the moment of inertia, So that it is determined that the internal force of each steel plate, determine cross-sectional sizes, if agent structure plate is the thinnest, turn to support lattice Beam can not meet stress needs, can increase I shape crossbeam by superposed beam calculating turning to bottom support lattice girder To meet needs;For bottom stress crossbeam, calculating determine lower flange width, by pipe curtain load plus executing Work load determines that subgrade reaction calculates, whole turn to support take based on closed frame, four angle points are for just to connect Point, calculates mid span moment, should meet the mechanical equivalent of light excavation least radius of gyration when determining cross-brace width during design, Height is excavated by mechanical equivalent of light excavation minimum and highly determines.
Compared with prior art, using the spacing every time fetched earth big, the maximum spacing that can fetch earth is pipe curtain diameter 20 times, i.e. during a diameter of 0.22m of pipe curtain, the spacing that can fetch earth is 4.4m, and the former theory that fetches earth is by country rock soil Theory at most can fetch earth 0.75m, be not easy to dragline and fetch earth, former fetching earth highly should not be greater than 2.2m, existing Fetch earth and highly can reach 3.6m, facilitate mechanical equivalent of light excavation depth demand;Additionally, turn to arranging of support to save Going I-steel ccf layer and steel wire whitewashing, the hydraulic pressure temporary support turning to support is reusable, thus saves About construction costs;Using the construction method of the present invention, cost reduces, and speed of application improves, and construction loads passes Ratio of two term is relatively clear and definite, and the safety in construction increases.
Above-described embodiment is only used for the description of the invention, and without limiting it, those skilled in the art is also Can make a change on this basis.

Claims (2)

1. an earth's surface Wicresoft underground space tunneling construct technology, it is characterised in that planning to build the underground space Location sink well technique construction wound surface oral area, the area of described wound surface oral area is underground space building 1%-2%;The underground space planned to build is divided into multiple spaced passage, makes each passage equal Along the through setting in wound surface oral area direction, by push bench process, tube coupling is arranged in each channel, formed Transverse pipe curtain and longitudinal pipe curtain, use Mining Method and shield technique to carry out the design of its support of pipe curtain and execute Work;Be provided with in the channel and turn to support for support tube coupling, described in turn to support to include hydraulic pressure Temporary support, backing plate and support column, after described hydraulic pressure temporary support is installed under pipe curtain, install two Limit support column, and being held out against by backing plate, described in turn to support that upper load is turned to ground, wait to lead Body structural strength reaches more than 90%, removes described hydraulic pressure temporary support, and support column is embedded in master in advance In body structure.
Earth's surface Wicresoft the most according to claim 1 underground space tunneling construct technology, it is characterised in that Described turn to support also to include turning to support lattice girder and bottom stress crossbeam, described in turn to support Erection sequence is: bottom 1. installing, hydraulic pressure temporary support → 3. will turn to and prop up installed by stress crossbeam → 2. Support lattice girder is placed in hydraulic pressure temporary support, makes the upper load in hydraulic pressure temporary support reach top The support column on the 80% of dead load → 4. install both sides → 5. big with bottom stress according to both sides support column The distance of beam determines plate thickness, installs backing plate and backing plate holds out against → 6. treat agent structure intensity reaches To more than 90%, hydraulic pressure temporary support is removed, turn to support lattice girder and support column to be embedded in master In body structure.
CN201610269152.0A 2015-11-23 2016-04-27 Underground space construction technique adopting underground excavation and causing little ruin to land surface Pending CN105863649A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201510814582 2015-11-23
CN2015108145821 2015-11-23

Publications (1)

Publication Number Publication Date
CN105863649A true CN105863649A (en) 2016-08-17

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109488341A (en) * 2018-12-25 2019-03-19 上海建工集团股份有限公司 The method for supporting and support construction of a kind of act of posture tunneling system
CN111255490A (en) * 2020-01-15 2020-06-09 上海隧道工程有限公司 Device for preventing soil body on upper part of pipe curtain structure from settling and construction method thereof

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050081975A (en) * 2004-02-17 2005-08-22 주식회사 엔티에스이앤씨 Construction establishment method and the structure for underground tunnel formation
CN101285385A (en) * 2008-05-29 2008-10-15 中交第二公路勘察设计研究院有限公司 Undermining method for three-dimensional pipe-roof
JP2013241756A (en) * 2012-05-18 2013-12-05 Kajima Corp Construction method of underground structure
CN103775110A (en) * 2014-01-22 2014-05-07 上海市城市建设设计研究总院 Underground excavation construction method for multilayer underground space of soft soil area
CN104675403A (en) * 2014-12-18 2015-06-03 上海建工集团股份有限公司 Underground space construction method and supporting structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20050081975A (en) * 2004-02-17 2005-08-22 주식회사 엔티에스이앤씨 Construction establishment method and the structure for underground tunnel formation
CN101285385A (en) * 2008-05-29 2008-10-15 中交第二公路勘察设计研究院有限公司 Undermining method for three-dimensional pipe-roof
JP2013241756A (en) * 2012-05-18 2013-12-05 Kajima Corp Construction method of underground structure
CN103775110A (en) * 2014-01-22 2014-05-07 上海市城市建设设计研究总院 Underground excavation construction method for multilayer underground space of soft soil area
CN104675403A (en) * 2014-12-18 2015-06-03 上海建工集团股份有限公司 Underground space construction method and supporting structure

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
袁金荣等: "利用小口径顶管机建造大断面地下空间的一种新手段-管幕工法", 《地下工程与隧道》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109488341A (en) * 2018-12-25 2019-03-19 上海建工集团股份有限公司 The method for supporting and support construction of a kind of act of posture tunneling system
CN111255490A (en) * 2020-01-15 2020-06-09 上海隧道工程有限公司 Device for preventing soil body on upper part of pipe curtain structure from settling and construction method thereof

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Application publication date: 20160817

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