CN105239598A - Integral sinking construction method for well-type full-automatic stereo garage - Google Patents
Integral sinking construction method for well-type full-automatic stereo garage Download PDFInfo
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- CN105239598A CN105239598A CN201510682579.9A CN201510682579A CN105239598A CN 105239598 A CN105239598 A CN 105239598A CN 201510682579 A CN201510682579 A CN 201510682579A CN 105239598 A CN105239598 A CN 105239598A
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Abstract
The invention discloses an integral sinking construction method for a well-type full-automatic stereo garage, and relates to the technical field of underground construction. The method is used for achieving the technical purposes of shortening the construction period and lowering the construction cost. According to the method, a garage well prefabricated on the ground is directly sunk to an underground design depth through underwater tunneling and gravity at a garage design position, and the sinking edge of the garage well is lengthened on the ground. The method is short in construction period and low in construction cost and hardly influences the surrounding environment.
Description
Technical field
The present invention relates to underground building technology, particularly relate to a kind of technology of integral sinking construction method of well formula fully automatic stereo-parking garage.
Background technology
The principle of fully automatic stereo-parking garage is: build a vertical shaft in underground, install smart three-dimensional garage system in vertical shaft.Fully automatic stereo-parking garage achieves and utilizes minimum soil (not taking urban architecture space) to park this target of more vehicles.Such garage is all utilize the scrappy vacant lot of existing building periphery to build underground parking garage substantially.
Exploitation at present for the underground space all needs to adopt the mode such as excavation of foundation pit or shield structure to carry out, these modes can run into bottleneck in the impact of surrounding enviroment and the excavation of foundation pit degree of depth, the medium-and-large-sized foundation depths such as common subway station, present District of Shanghai, high-rise underground garage are also just at 20 ~ 30 meters, difficulty of construction is very large, also must take the construction technologies such as corresponding bracing of foundation pit, soil excavation, precipitation, correspondingly bring that construction duration is long, construction cost is high, to problems such as surrounding buildings pipe control difficulty are large.
Summary of the invention
For the defect existed in above-mentioned prior art, technical problem to be solved by this invention is to provide that a kind of construction duration is short, construction cost is low, integral sinking construction method to the little well formula fully automatic stereo-parking garage of surrounding environment influence.
In order to solve the problems of the technologies described above, the integral sinking construction method of a kind of well formula fully automatic stereo-parking garage provided by the present invention, it is characterized in that, concrete steps are as follows:
1) in the soil body of garage construction point, adopt the mode of earth excavation and concreting to make the fore shaft of a vertical tubular construction, and install in fore shaft hold up in device;
2) the prefabricated sword pin on ground, and prefabricated sword pin is hung into fore shaft; Sword pin is the annular solid of horizontal, the outer wall of sword pin and the inwall matched in clearance of fore shaft, and sword pin is equipped with Grouting Pipe, and the thickness of sword pin reduces from top to bottom gradually;
3) the prefabricated storehouse well on ground, and prefabricated storehouse well is hung on sword pin, the lower surface of storehouse well is engaged completely with the upper surface of sword pin; Storehouse well is the perpendicular well body put, and is embedded with mud tube in the borehole wall of storehouse well;
4) pour water in the well of storehouse, make water level in the well of storehouse higher than the groundwater level in the periphery soil body;
5) soil layer of counter blade foot bottom implements downward driving under water, and in utilizing and holding up middle device to hold up storehouse well, makes storehouse well keep sinking, until down-hole, storehouse is sink to projected depth under vertical state; And in the well sinking watching of storehouse, adopt steel reinforced concrete to build mode by storehouse well spreading in the height direction, until the height of storehouse well reaches design height on the top of storehouse well;
5) the part sandstone of backbreaking when tunneling is filled compacting under water, and sword pin surrounding rubble is tamped, then use plain concrete back cover.
Further, the outer wall of sword pin slopes inwardly from bottom to up.
Further, the upper outer edge of sword pin is equipped with the colloid apron of 0.5 ~ 0.7 meter high.
Further, the driving method of tunneling under water utilizes the downward impact failure soil layer construction of road heading machinery.
Further, the driving method of tunneling under water is in the soil body inside the well borehole wall of storehouse, utilizes giant to dig an annular mud ditch around the storehouse borehole axis heart one circle along the inwall of storehouse well, and with the mud in the in good time sucking-off mud ditch of suction dredge.
Further, in the well sinking watching of storehouse, by mud tube pre-buried in the well borehole wall of storehouse, in the annular space between storehouse well outer wall and the storehouse well periphery soil body, fill thixotropic slurry, utilize thixotropic slurry the outer wall of storehouse well and the periphery soil body to be separated.
The integral sinking construction method of well formula fully automatic stereo-parking garage provided by the invention, because the water level in the well of storehouse is higher than the groundwater level in the periphery soil body, balance the differential water pressures inside and outside the well of storehouse, the chain reaction that sand emits mud can not be gushed, and operating personnel do not go into the well, good in terrestrial operation condition of labor, job safety, storehouse well quality is better, has that construction duration is short, construction cost is low, the feature little to surrounding environment influence.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the integral sinking construction method of the well formula fully automatic stereo-parking garage of the embodiment of the present invention;
Fig. 2 is the vertical cross section figure of storehouse well in the integral sinking construction method of the well formula fully automatic stereo-parking garage of the embodiment of the present invention and sword pin.
Detailed description of the invention
Illustrate below in conjunction with accompanying drawing and embodiments of the invention are described in further detail; but the present embodiment is not limited to the present invention; every employing analog structure of the present invention and similar change thereof, all should list protection scope of the present invention in, the pause mark in the present invention all represent and relation.
As Figure 1-Figure 2, the integral sinking construction method of a kind of well formula fully automatic stereo-parking garage that the embodiment of the present invention provides, it is characterized in that, concrete steps are as follows:
1) in the soil body of garage construction point, adopt the mode of earth excavation and concreting to make the fore shaft of a vertical tubular construction, and install in fore shaft hold up in device;
The degree of depth of fore shaft (difference in height namely between the lower edge of fore shaft and ground) is 5 ± 0.5 meters, and the wall thickness of fore shaft is 400mm;
The effect of fore shaft is: in the well sinking watching of storehouse, prevent the peripheral soil layer of storehouse well from subsiding, for upending frame and storehouse well surrounding building keep a complete ground, and as the base station preventing storehouse deviating or pressurization from sinking, the annular space between fore shaft and storehouse well can be used as the slurry storage tank of thixotropic slurry;
2) the prefabricated sword pin 2 on ground, and prefabricated sword pin is hung into fore shaft;
Sword pin is the annular solid of horizontal, and the outer wall of sword pin and the inwall matched in clearance of fore shaft, sword pin is equipped with Grouting Pipe, and the thickness of sword pin reduces (thickness of sword pin refers to the difference between the external diameter of sword pin and internal diameter) from top to bottom gradually;
The effect of sword pin is: incision soil layer, destroys the structure of undisturbed soil, overcomes down-hole, storehouse and sink frontal drag, close and pour in the well of storehouse with stoping Ku Jing periphery quicksand or mud;
The height of sword pin is 2 ± 0.3 meters, and the excessive height of sword pin can cause side drag excessive, and the height of sword pin is too low, and easily run off mud; The inside and outside wall of sword pin is burnishing surface, and the outer wall of sword pin slopes inwardly from bottom to up, forms positive cone-shaped, to reduce frictional resistance when sword underfooting sinks; The inside and outside wall of sword pin is drilled with multiple weep hole, and for releasing concrete Free water, the upper outer edge of sword pin can install the colloid apron of 0.5 ~ 0.7 meter high, is beneficial to protect the complete of mud layer when sword underfooting sinks;
The regular size of sword pin has sharp tip, tread type, blunt tip three kinds of specifications, and the bottom of sharp tip sword pin is in the tip-angled shape being less than 25 degree, and the bottom of tread type sword pin is frustum, and the bottom of blunt tip sword pin is the tip-angled shape of 30 degree; Wherein, when sharp tip sword pin is constructed in the soil body, resistance is little, easily cut soil layer, but intensity is low, fragile, is not suitable for the stratum containing gravel, cobble; When tread type sword pin is constructed in the soil body, resistance is large, but stability is better, is applicable to the alluvium of loose and accessible object; When blunt tip sword pin is constructed in the soil body, resistance is medium, and intensity is large, is applicable to various alluvium;
Sword pin can adopt steel sword pin or steel boots sword pin two kinds of form of structure; Wherein, the skeleton of steel sword leg structure is welded with two row's angle steel or light rail, blade tip (i.e. the base of sword pin) adopts the rail of 15 ~ 24 kg/ms to make, all all enclose bag with the steel plate of 10 ~ 16 millimeters thick outside in skeleton to weld, steel sword leg structure intensity is large, good integrity, and assembling is laid not yielding, construction quality specification can ensure, is applicable to the multi-storied garage that the degree of depth is larger; The skeleton of steel boots sword leg structure is made up of reinforcing bar, the steel boots blade tip that its skeleton lower weld is assembled by the rail of steel plate and 15 kg/ms, or the steel boots blade tip that the round steel that welding is 18 ~ 28 millimeters by steel plate and diameter assembles, the steel plate height adopted is 0.5 ~ 1.0 meter, thickness is 8 ~ 12 millimeters, and steel boots sword leg structure intensity is higher, and economizes steel, but formwork erection is more difficult, and yielding;
3) the prefabricated storehouse well 1 on ground, and prefabricated storehouse well is hung on sword pin, the lower surface of storehouse well is engaged completely with the upper surface of sword pin;
Storehouse well is the perpendicular well body put, and is embedded with mud tube 11 in the borehole wall of storehouse well, to Ku Jing periphery conveying thixotropic slurry;
Storehouse well can adopt radial section to be circular round well, and also can adopt with radial section is the Fang Jing of rectangle, also can adopt the well body of other shape according to requirement of engineering;
Structure all isometrical inside and outside the vertical cross section of storehouse well can adopt, also the outer isometrical and structure of interior reducing can be adopted, also outer reducing can be adopted and interior isometrical structure, inside and outside all isometrical storehouse well be applicable to more shallow garage, darker garage is the outer isometrical and structure of interior reducing preferably, this structure can reduce the volume of storehouse well, the scetion utilization in garage can be improved, material can be saved, headwork amount can be reduced again, and evenly breaking ground of sword pin can not be affected because of the deflection of the storehouse well borehole wall, storehouse well can adopt reinforced concrete whole-casting, prefabricated reinforced concrete, steel or cast steel structure etc., the thickness of shaft wall of storehouse well is determined according to sinking ability and Strength co-mputation, the multi-storied garage of usual submergence depth within 50 meters, the thickness of shaft wall of storehouse well is 0.4 ~ 0.8 meter,
4) pour water in the well of storehouse, make water level in the well of storehouse higher than the groundwater level in the periphery soil body;
5) soil layer of counter blade foot bottom implements downward driving under water, and in utilizing and holding up middle device to hold up storehouse well, makes storehouse well keep sinking (under driving effect and Action of Gravity Field), until down-hole, storehouse is sink to projected depth under vertical state; And in the well sinking watching of storehouse, adopt steel reinforced concrete to build mode by storehouse well spreading in the height direction, until the height of storehouse well reaches design height on the top of storehouse well;
The driving method of tunneling under water can adopt mechanical driving method, or waterpower driving method;
Machinery driving method utilizes the machineries such as grab claw, percussive drill, rotary rig impact failure soil layer construction realization downwards driving downwards, and mechanical tunneling method technique is simple and power consumption is little, is applicable to more shallow garage;
Waterpower driving method is in the soil body inside the well borehole wall of storehouse, utilizes giant to dig an annular mud ditch 3 around the storehouse borehole axis heart one circle along the inwall of storehouse well, and with the mud in the in good time sucking-off mud ditch of suction mud 5 machine; Along with digging of annular mud ditch is dark, storehouse well sinks in groove, and the soil body in Ku Jing centre then forms central island 4;
In the well sinking watching of storehouse, by mud tube pre-buried in the well borehole wall of storehouse, thixotropic slurry is filled in the annular space between storehouse well outer wall and the storehouse well periphery soil body, thixotropic slurry is utilized the outer wall of storehouse well and the periphery soil body to be separated, thixotropic slurry can reduce frictional resistance when down-hole, storehouse sinks, and safeguard the complete of the periphery soil body by slurry column pressure, cave in avoid the periphery soil body;
5) the part sandstone of backbreaking when tunneling is filled compacting under water, and sword pin surrounding rubble is tamped, then use plain concrete back cover, or use plain concrete back cover again lay the thick sand cushion of 10 ~ 30cm on rubble after.
Claims (6)
1. an integral sinking construction method for well formula fully automatic stereo-parking garage, it is characterized in that, concrete steps are as follows:
1) in the soil body of garage construction point, adopt the mode of earth excavation and concreting to make the fore shaft of a vertical tubular construction, and install in fore shaft hold up in device;
2) the prefabricated sword pin on ground, and prefabricated sword pin is hung into fore shaft; Sword pin is the annular solid of horizontal, the outer wall of sword pin and the inwall matched in clearance of fore shaft, and sword pin is equipped with Grouting Pipe, and the thickness of sword pin reduces from top to bottom gradually;
3) the prefabricated storehouse well on ground, and prefabricated storehouse well is hung on sword pin, the lower surface of storehouse well is engaged completely with the upper surface of sword pin; Storehouse well is the perpendicular well body put, and is embedded with mud tube in the borehole wall of storehouse well;
4) pour water in the well of storehouse, make water level in the well of storehouse higher than the groundwater level in the periphery soil body;
5) soil layer of counter blade foot bottom implements downward driving under water, and in utilizing and holding up middle device to hold up storehouse well, makes storehouse well keep sinking, until down-hole, storehouse is sink to projected depth under vertical state; And in the well sinking watching of storehouse, adopt steel reinforced concrete to build mode by storehouse well spreading in the height direction, until the height of storehouse well reaches design height on the top of storehouse well;
5) the part sandstone of backbreaking when tunneling is filled compacting under water, and sword pin surrounding rubble is tamped, then use plain concrete back cover.
2. the integral sinking construction method of well formula fully automatic stereo-parking garage according to claim 1, is characterized in that: the outer wall of sword pin slopes inwardly from bottom to up.
3. the integral sinking construction method of well formula fully automatic stereo-parking garage according to claim 1, is characterized in that: the upper outer edge of sword pin is equipped with the colloid apron of 0.5 ~ 0.7 meter high.
4. the integral sinking construction method of well formula fully automatic stereo-parking garage according to claim 1, is characterized in that: the driving method of tunneling under water utilizes the downward impact failure soil layer construction of road heading machinery.
5. the integral sinking construction method of well formula fully automatic stereo-parking garage according to claim 1, it is characterized in that: the driving method of tunneling under water is in the soil body inside the well borehole wall of storehouse, giant is utilized to dig an annular mud ditch around the storehouse borehole axis heart one circle along the inwall of storehouse well, and with the mud in the in good time sucking-off mud ditch of suction dredge.
6. the integral sinking construction method of well formula fully automatic stereo-parking garage according to claim 1, it is characterized in that: in the well sinking watching of storehouse, by mud tube pre-buried in the well borehole wall of storehouse, in the annular space between storehouse well outer wall and the storehouse well periphery soil body, fill thixotropic slurry, utilize thixotropic slurry the outer wall of storehouse well and the periphery soil body to be separated.
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804085A (en) * | 2016-04-19 | 2016-07-27 | 江苏东合南岩土科技股份有限公司 | Divisional construction method of multi-unit shaft-type underground stereo garage |
| CN106121657A (en) * | 2016-08-29 | 2016-11-16 | 杭州牛斯顿立体车库有限公司 | A kind of multifunctional numerical control shaft sinking device and construction method |
| CN109372018A (en) * | 2018-11-28 | 2019-02-22 | 江西万和建筑科技有限公司 | Soft base Self-sinking type underground space structure construction and construction technology |
| CN109630128A (en) * | 2019-02-19 | 2019-04-16 | 广东华方工程设计有限公司 | A kind of prefabricated reinforced concrete assembled self weight sinking vertical shaft |
| CN109706952A (en) * | 2018-12-25 | 2019-05-03 | 中建四局第六建筑工程有限公司 | Large-scale well-sinking construction method |
| CN109736612A (en) * | 2019-03-01 | 2019-05-10 | 山东建筑大学 | A kind of stereo garage basis open caisson construction method |
| CN109914621A (en) * | 2019-03-18 | 2019-06-21 | 天津建岩岩土工程有限公司 | The outer waterproof construction of basement and its laying method |
| CN110055991A (en) * | 2019-05-30 | 2019-07-26 | 安徽省交通控股集团有限公司 | A kind of two-wall hollow well foundation and its sinking construction method |
| CN112854274A (en) * | 2021-01-08 | 2021-05-28 | 广东省基础工程集团有限公司 | Sinking-assisting construction method for open caisson |
| CN113047844A (en) * | 2021-03-17 | 2021-06-29 | 中国铁建重工集团股份有限公司 | Sinking pipe sheet type vertical shaft construction method |
| CN113202125A (en) * | 2021-05-12 | 2021-08-03 | 山东建筑大学 | Prefabricated component for assembling integral combined open caisson with arched section and construction method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4025176A1 (en) * | 1990-08-08 | 1992-02-13 | Adolf Traunbauer | Basement construction in water-bearing ground - has frame for walls constructed, lowered and soil is pumped out |
| CN101294398A (en) * | 2008-05-23 | 2008-10-29 | 上海广联建设发展有限公司 | Construction method for barrel type underground garage |
| CN101736758A (en) * | 2009-12-22 | 2010-06-16 | 潍坊金丝达印染有限公司 | Method for constructing anaerobic jar for treating organic waste or wastewater |
| CN102900090A (en) * | 2011-07-29 | 2013-01-30 | 邹宗煊 | Non-inclined dry-operation open caisson capable of preventing water burst and land subsidence and construction method thereof |
| GB2511520A (en) * | 2013-03-05 | 2014-09-10 | Allan Cassells Sharp | Methods for construction and completion of underwater tunnels |
| CN104060623A (en) * | 2013-03-20 | 2014-09-24 | 中国二十冶集团有限公司 | Open caisson structure provided with resistance reduction mechanism and dry excavation method of open caisson |
-
2015
- 2015-10-21 CN CN201510682579.9A patent/CN105239598A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4025176A1 (en) * | 1990-08-08 | 1992-02-13 | Adolf Traunbauer | Basement construction in water-bearing ground - has frame for walls constructed, lowered and soil is pumped out |
| CN101294398A (en) * | 2008-05-23 | 2008-10-29 | 上海广联建设发展有限公司 | Construction method for barrel type underground garage |
| CN101736758A (en) * | 2009-12-22 | 2010-06-16 | 潍坊金丝达印染有限公司 | Method for constructing anaerobic jar for treating organic waste or wastewater |
| CN102900090A (en) * | 2011-07-29 | 2013-01-30 | 邹宗煊 | Non-inclined dry-operation open caisson capable of preventing water burst and land subsidence and construction method thereof |
| GB2511520A (en) * | 2013-03-05 | 2014-09-10 | Allan Cassells Sharp | Methods for construction and completion of underwater tunnels |
| CN104060623A (en) * | 2013-03-20 | 2014-09-24 | 中国二十冶集团有限公司 | Open caisson structure provided with resistance reduction mechanism and dry excavation method of open caisson |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105804085A (en) * | 2016-04-19 | 2016-07-27 | 江苏东合南岩土科技股份有限公司 | Divisional construction method of multi-unit shaft-type underground stereo garage |
| CN106121657A (en) * | 2016-08-29 | 2016-11-16 | 杭州牛斯顿立体车库有限公司 | A kind of multifunctional numerical control shaft sinking device and construction method |
| CN106121657B (en) * | 2016-08-29 | 2018-08-07 | 杭州牛斯顿立体车库有限公司 | A kind of multifunctional numerical control shaft sinking device and construction method |
| CN109372018A (en) * | 2018-11-28 | 2019-02-22 | 江西万和建筑科技有限公司 | Soft base Self-sinking type underground space structure construction and construction technology |
| CN109706952A (en) * | 2018-12-25 | 2019-05-03 | 中建四局第六建筑工程有限公司 | Large-scale well-sinking construction method |
| CN109630128B (en) * | 2019-02-19 | 2024-02-06 | 广东华方工程设计有限公司 | Prefabricated reinforced concrete assembled dead weight sinking vertical shaft |
| CN109630128A (en) * | 2019-02-19 | 2019-04-16 | 广东华方工程设计有限公司 | A kind of prefabricated reinforced concrete assembled self weight sinking vertical shaft |
| CN109736612A (en) * | 2019-03-01 | 2019-05-10 | 山东建筑大学 | A kind of stereo garage basis open caisson construction method |
| CN109914621A (en) * | 2019-03-18 | 2019-06-21 | 天津建岩岩土工程有限公司 | The outer waterproof construction of basement and its laying method |
| CN110055991A (en) * | 2019-05-30 | 2019-07-26 | 安徽省交通控股集团有限公司 | A kind of two-wall hollow well foundation and its sinking construction method |
| CN112854274A (en) * | 2021-01-08 | 2021-05-28 | 广东省基础工程集团有限公司 | Sinking-assisting construction method for open caisson |
| CN113047844A (en) * | 2021-03-17 | 2021-06-29 | 中国铁建重工集团股份有限公司 | Sinking pipe sheet type vertical shaft construction method |
| CN113202125A (en) * | 2021-05-12 | 2021-08-03 | 山东建筑大学 | Prefabricated component for assembling integral combined open caisson with arched section and construction method |
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