CN108385695A - Foundation pit supporting construction and its construction method - Google Patents
Foundation pit supporting construction and its construction method Download PDFInfo
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- CN108385695A CN108385695A CN201810407336.8A CN201810407336A CN108385695A CN 108385695 A CN108385695 A CN 108385695A CN 201810407336 A CN201810407336 A CN 201810407336A CN 108385695 A CN108385695 A CN 108385695A
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
- E02D17/04—Bordering surfacing or stiffening the sides of foundation pits
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Abstract
The present invention relates to technical field of civil engineering, and in particular to a kind of foundation pit supporting construction and its construction method, the wherein structure includes the steel sheet pile being oppositely arranged, and the support parts being fixed between the steel sheet pile；The support parts are splicing construction and length is adjustable.By the way that length-adjustable support parts are arranged so that the support parts can automatically control the axle power of its own, can also realize the Bit andits control of the foundation pit supporting construction according to the deformation of foundation pit, have higher application range；In addition, the support parts of splicing construction, can avoid welding procedure in the construction process, construction technology is simple, and stock utilization is high.
Description
Technical field
The invention belongs to technical field of civil engineering, and in particular to a kind of foundation pit supporting construction and its construction method.
Background technology
Pattern foundation pit supporting structure is in order to ensure Underground Construction and safety of surrounding environment, to foundation pit side-wall and surrounding enviroment
Supporting and retaining system, reinforcing and the safeguard measure of use.At present frequently with supporting construction include diaphram wall, campshed, steel sheet pile, soil nailing
Wall, natural discharging slope etc..Wherein, the support forms such as diaphram wall, campshed, soil nail wall, although supporting reliability is preferable, its
After the completion of construction, still there is partial component to remain in underground, underground environment can be impacted.Although steel sheet pile has repeatable profit
With the advantages of, but its rigidity is smaller, is not suitable in the poor pattern foundation pit supporting structure of soil property environment, and its part structure in the construction process
Part needs to weld, and can cause steel sheet pile is improper to scrap, buildings and resources is caused to waste.
Invention content
The technical problem to be solved in the present invention is to overcome the stock utilization of foundation pit supporting construction in the prior art low
Defect.
In consideration of it, the present invention provides a kind of foundation pit supporting construction, including：The steel sheet pile being oppositely arranged, and it is fixed on institute
State the support parts between steel sheet pile；
The support parts are splicing construction and length is adjustable.
Optionally, the support parts include：
First waist rail and the second waist rail are respectively and vertically fixed on two steel sheet piles, the steel sheet pile with connect
The slot position of truss rod is integrally formed, and the steel sheet pile includes bearing sheet；
Inner supporting structure, one end are fixedly connected with second waist rail；
Length control device, one end are fixedly connected with the other end of the inner supporting structure, the other end and first waist
Beam is fixedly connected, and the length of the length control device is adjustable.
Optionally, first waist rail and second waist rail are girder structure, and shape is corresponding with the bearing sheet
Setting；
The centre of second waist rail is provided with the hanging groove to match with the end of the inner supporting structure；
It is provided with ribbed stiffener in the hanging groove, the horizontal displacement for constraining the inner supporting structure.
Optionally, the inner supporting structure, including：
First end is connect with the length control device；
The second end is connect with the hanging groove of second waist rail；The second end is hook structure, is tied in the hook
Concave convex texture is provided on the outside of structure；
Connecting rod, the first end and the second end are arranged respectively at the connecting rod both ends；The connection
The length of bar is adjustable.
Optionally, the length control device, including：
Main body, driving gear set, reinforcement recycle hydraulic device, and the first end is with the second end；
The driving gear set and reinforcement cycle hydraulic device are arranged in the cavity of the main body；
Along the length direction of the main body, first end and second end are separately positioned on the main body
Both sides；
First end is connect with the hanging groove of first waist rail；
Second end is connect with the first end.
Optionally, the driving gear set includes：
Power gear；
Tooth sector, tooth mouth and the tooth mouth of the power gear match；
Drive link, axial rotation gear, power excessive gear；
Power transmitting gear is connect with the power excessive gear；
Hydraulic loaded gear, tooth mouth and the tooth mouth of hydraulic power rack match；
Plane excessive gear；Hydraulic stem playback power gear；
Hydraulic stem playback gear, tooth mouth and the tooth mouth of the hydraulic power rack match.
Optionally, the reinforcement recycles hydraulic device, including：
Power piston, style one-way flow valve, hydraulic pressure storage warehouse, hydraulic pressure storehouse promote valve, hydraulic valve restoring spring, hydraulic packing
Valve, hydraulic power storehouse, hydraulically powered piston, hydraulic return line and hydraulic pressure cutout valve.
Optionally, first end includes panel, and the panel is connect with the hydraulically powered piston, the panel table
Face is provided with several bolts hole.
Optionally, further include central control system and emergency system；
The central control system, for controlling the support parts；
The emergency system for the working condition to monitoring the support parts, and feeds back to the central control system.
The present invention also provides a kind of construction methods of foundation pit supporting construction, including：
Supporting agent structure is designed according to geological exploration data；
First squeeze into steel sheet pile, after squeeze into truss frame for connecting bar, complete the splicing of steel sheet pile 10；
Be excavated to first layer support setting depth, complete waist rail, inner supporting structure, central control system, emergency system and
The installation of length control device with reinforcement function；
Corresponding parameter is inputted in central control system and emergency system according to design requirement；
It repeats the above steps, until being excavated to hole bottom.
Technical solution of the present invention has the following advantages that：
1. by the way that length-adjustable support parts are arranged in the present invention so that the support parts can be automatically to the axle power of its own
It is controlled, can also realize the Bit andits control of the foundation pit supporting construction according to the deformation of foundation pit, had higher using model
It encloses；In addition, the support parts of splicing construction, can avoid welding procedure in the construction process, construction technology is simple, material use
Rate is high.
2. being provided with central control system and emergency system in the present invention, wherein central control system is realized to supporting
The control of part length, emergency system is used to feed back the operating status of the support parts, to ensure the reliability of the foundation pit supporting construction.
3. construction method provided by the invention, in the construction process without any welding procedure, it is only necessary to carry out assembled and parameter
Input can control the deformation of entire foundation pit, stress size, have constructing operation simple, speed of application is fast, and supporting is rigid
Degree is big, and supporting resistance to capsizing is strong and reliability is higher.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is a sectional view specifically illustrated of foundation pit supporting construction in the embodiment of the present invention；
Fig. 2 is a structure chart specifically illustrated of Steel Sheet Pile of the embodiment of the present invention；
Fig. 3 is a structure chart specifically illustrated of waist rail in the embodiment of the present invention；
Fig. 4 is a structure chart specifically illustrated of inner supporting structure in the embodiment of the present invention；
Fig. 5 is a structure chart specifically illustrated of first end in the embodiment of the present invention；
Fig. 6 is a structure chart specifically illustrated of length control device in the embodiment of the present invention；
Fig. 7 is a structure chart specifically illustrated of driving gear set in the embodiment of the present invention；
Fig. 8 is a stereogram specifically illustrated of driving gear set in the embodiment of the present invention；
Fig. 9 is a structure chart specifically illustrated of hydraulic force increasing device in the embodiment of the present invention；
Figure 10 is a structure chart specifically illustrated of the first end in the embodiment of the present invention；
Reference numeral：10- steel sheet piles；20- support parts；The first waist rails of 21-；211- bearing sheets；212- ribbed stiffeners；22-
Two waist rails；23- inner supporting structures；231- first ends；232- the second ends；233- connecting rods；24- length control devices；
241- main bodys；242- driving gear sets；24210- power gears；24211- tooth sectors；24212- drive links；24213- is axial
Rotate gear；24214- power excessive gears；24215- power transmitting gears；24216- hydraulic loaded gears；24217- hydraulic pressure
Power gear bar；24218- plane excessive gears；24219- hydraulic stems playback power gear；24220- hydraulic stems playback gear；
24221- central shafts；243- reinforcements recycle hydraulic device；24310- power pistons；24311- style one-way flow valves；24312- hydraulic pressure
Storage warehouse；24313- hydraulic pressure storehouse promotes valve；24314- hydraulic valve restoring springs；24315- hydraulic packing valves；24316- hydraulic pressure is dynamic
Power storehouse；24317- hydraulically powered pistons；24318- hydraulic return lines；24319- hydraulic pressure cutout valves；The first ends 244-；245-
Two ends；30- central control systems；40- emergency systems.
Specific implementation mode
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
The every other embodiment that personnel are obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " first ", " second ", " third " are used for description purposes only,
It is not understood to indicate or imply relative importance.
As long as in addition, technical characteristic involved in invention described below different embodiments non-structure each other
It can be combined with each other at conflict.
The present embodiment provides a kind of foundation pit supporting constructions, as shown in Figure 1, including the steel sheet pile 10, Yi Jigu being oppositely arranged
The support parts 20 being scheduled between steel sheet pile 10.Wherein, support parts 20 are splicing construction and length is adjustable.
By the way that length-adjustable support parts 20 are arranged in the embodiment of the present invention so that the support parts 20 can automatically to its from
The axle power of body is controlled, and can also realize the Bit andits control of the foundation pit supporting construction according to the deformation of foundation pit, is had higher
Application range；In addition, the support parts 20 of splicing construction, can avoid welding procedure in the construction process, construction technology is simple,
Stock utilization is high.
As shown in Figure 1 and Figure 2, steel sheet pile 10 and the slot position of truss frame for connecting bar are integrally formed, and waist can be installed by having
The bearing sheet 211 of beam.Wherein, support parts 20 include the first waist rail 21 and second being respectively and vertically fixed on two steel sheet piles 10
Waist rail 22；Inner supporting structure 23, one end are fixedly connected with the second waist rail 22, and one end of the other end and length control device 24 is fixed
Connection；The other end of length control device 24 is fixedly connected with the first waist rail 21.
Wherein, as shown in figure 3, the first waist rail 21 and the second waist rail 22 are girder structure, shape size and bearing sheet
Spacing between 211 is adapted.For example, the first waist rail 21 and the second waist rail 22 can be H profile steel, box steel and channel steel etc.
Other girder structures of lateral rigidity can be provided.The centre of second waist rail 22 is provided with the end phase with inner supporting structure 23
Matched hanging groove can be provided with the ribbed stiffener 212 of bound level displacement in hanging groove.
As shown in figure 4, inner supporting structure 23 includes：The first end 231 being connect with length control device 24, with the second waist
The second end 232 of the hanging groove connection of beam 22, and the connecting rod for connecting first end 231 and the second end 232
233.Wherein, the second end 232 is hook structure, and concave convex texture is provided on the outside of hook structure, can be embedded in ribbed stiffener,
To limit its horizontal displacement.Wherein, the length of connecting rod 233 is adjustable.The second end of first end 231 and length control device 24
First 245 connection, connection type can be the form of repeatable connection such as to be bolted.As shown in figure 5, first end 231
Surface has certain regularity of distribution bolt hole.
As shown in fig. 6, length control device 24, including main body 241, driving gear set 242, reinforcement recycle hydraulic device
243, the first end 244 and the second end 245.Driving gear set 242 and reinforcement cycle hydraulic device 243 are arranged in main body
In 241 cavity.On the length direction along main body 241, the first end 244 and the second end 245 are separately positioned on main body
241 both sides.Wherein, the first end 244 is connect with the hanging groove of the first waist rail 21.
As shown in fig. 7, driving gear set 242, including power gear 24210；Tooth sector 24211, has and power teeth
The adaptable tooth mouth of wheel 24210, to realize the adjustment of moment of flexure force direction；Drive link 24212；Axial rotation gear 24213；Power
Excessive gear 24214；Power transmitting gear 24215 is reliably connected with power excessive gear 24214；Hydraulic loaded gear
24216, it is adapted with the tooth mouth of hydraulic power rack 24217, and playback 24220 effective work area phase of gear with hydraulic stem
It adapts to；Plane excessive gear 24218；Hydraulic stem playback power gear 24219；Hydraulic stem playback gear 24220, should be dynamic with hydraulic pressure
The tooth mouth of powershift gear bar 24217 is adapted, and is adapted with 24217 effective work area of hydraulic power rack；Hydraulic power
Rack 24217, the internal device with limit levels displacement, to ensure only do unidirectional reciprocating motion.The driving cog
Wheel group 242 includes but are not limited to said gear group combining form, and hydraulic pressure can be made by further including any can convert torque to
The gear set combining form of 24217 axially reciprocating of power gear bar.Wherein, power excessive gear 24214, hydraulic loaded tooth
The central shaft of wheel 24216, hydraulic power rack 24217, plane excessive gear 24218 and hydraulic stem playback gear 24220
24221 overlap.In addition, as shown in fig. 7, the bar-shaped frame inside hydraulic power rack 24217 is limiting device, for power
Piston 24310 is limited.Wherein, Fig. 8 shows the stereogram of driving gear set 242.
As shown in figure 9, reinforcement recycles hydraulic device 243, including power piston 24310；Style one-way flow valve 24311, including
All valve members that can make liquid one-way flowing；Hydraulic pressure storage warehouse 24312；Hydraulic pressure storehouse promotes valve 24313, ensures liquid flow
Go out rear hydraulic pressure holding bay pressure balance；Hydraulic valve restoring spring 24314, including all elastic component；Hydraulic packing valve 24315,
Including all valve members that can make liquid one-way flowing；Hydraulic power storehouse 24316, to store highly pressurised liquid；Hydraulic pressure is dynamic
Power piston 24317 can provide hydraulic coupling；Hydraulic return line 24318, including all can bear the pipeline of high pressure；Hydraulic pressure is disconnected
Road valve 24319, can carry out the break-make of hydraulic return line 24318 control and fluid pressure is fed back.
As shown in Figure 10, the first end 244 includes panel, which connect with hydraulically powered piston 24217, panel surface
Bolt hole with certain regularity of distribution；The end that second end 245 is connected with the hanging groove of the first waist rail 21 has hook
Form, and have irregular lines on the outside of hook, it can be embedded in ribbed stiffener, to limit its horizontal displacement.
As shown in fig. 6, the foundation pit support device have with length control device be adapted central control system 30 and
In emergency circumstances implement the emergency system 40 of emergency braking to length control device 24.Wherein, central control system 30 includes control
System, power-supply system and dynamical system processed.Central control system 30 is characterized as that control system can be led to according to design requirement
It crosses driving gear set 242 to control axial stress and strain, and is shown in a manner of LCD screen；Power-supply system has
Double circuit, to ensure that device can still be run in power supply replacement process；Dynamical system has the function of that twisting resistance can be provided,
Drive drive rod.The emergency system 40 of emergency braking has working condition feedback instrument, and is reliably connected with the second end 245,
It is any including acceleration transducer etc. to occur the abnormal instrument fed back to the second end 245；With to center control
Instrument that device working condition is fed back, including power supply feedback, central processing unit normal operation feedback etc..By feedback, with reality
Existing device is automatically locked in abnormal cases, ensures the stability of the foundation pit supporting construction.
The embodiment of the present invention additionally provides a kind of construction method of foundation pit supporting construction, includes the following steps：
S1 is designed supporting agent structure according to geological exploration data；
S2 first squeezes into steel sheet pile 10, after squeeze into truss frame for connecting bar, complete the splicing of steel sheet pile 10；
S3 is excavated to first layer support setting depth, completes waist rail, inner supporting structure 23, central control system 30, meets an urgent need
The installation of system 40 and length control device with reinforcement function；
S4 inputs corresponding parameter according to design requirement in central control system and emergency system 40；
S5 repeats the above steps, until being excavated to hole bottom.
As a kind of specific implementation mode of the present embodiment, specifically include：
1) soil parameters provided according to geology prospecting report consider the shadow of many factors such as precipitation in conjunction with foundation depth
It rings, determines the parameter of steel sheet pile 10, support wale, inner supporting structure 23 and the length control device 24 with reinforcement function.It is real
It applies in example, 242 power gear of driving gear set, 24210 tooth number Z1=20, modulus m1=2.5,24211 tooth number Z of tooth sector2=
60, modulus m2=2.5, transmission ratio i1=3；24213 tooth number Z of axial rotation gear1=2, modulus m1=3, power excessive gear
24214 tooth number Zs2=100, modulus m2=3, transmission ratio i2=50；Power transmitting gear 24215,24218 and of plane excessive gear
Hydraulic stem playback 24219 tooth number Z of power gear is 32, and modulus m is 7；24218 tooth number Z=32 of hydraulic power rack, mould
Number m=4；Hydraulic loaded gear 24216, hydraulic stem playback 24220 tooth number Z of gear are 96 (taking 32 teeth), and modulus m is 4.It passes
It is dynamic to compare i12=i1xi2=150.The torque that center can export is assumed to be 8Nm, then power excessive gear 24214 obtains torque T2
=8 × 150=1200Nm is transmitted to hydraulic stem playback gear 24220 and obtains torque T2, hydraulic power rack 24217 obtains
Obtain axial force24310 diameter d of power piston is 60mm, hydraulically powered piston
24317 diameter D are 480mm, the axial force F that the second end 245 generates245It is obtained according to pascal's principleF245The size of power can be determined according to design requirement.
2) before steel sheet pile construction, it is inserted into corresponding sealing strip in corresponding truss rod slot position, prevents from squeezing into process
The middle soil body is filled in；The steel sheet pile 10 with bearing sheet is squeezed into according to design requirement；Sealing strip is extracted, is squeezed into along slot position corresponding
Truss rod completes steel sheet pile 10 and constructs；
3) it is excavated to first layer support installation position, waist rail is placed in support platform, H profile steel waist rail is installed；Wherein H-type
Transverse stiffener should be arranged in part of the steel in support platform, and its interval should meet certain modulus；Both reinforcement work can have been played
With, and can be as the card slot with supporting base end portion or length control device；
4) length control device 24 is supported with H profile steel and is connect by general-purpose end, blending bolt is fixed；It is then hung up branch
It backs up the corresponding position of beam, completes preliminary installation；
5) corresponding axle power control range, starter are inputted in central control system 30；Length with reinforcement function
Degree control device length is continuously increased, until generating corresponding axle power；The range that steel sheet pile 10 is strengthened in both sides is continuously increased, and first
Layer pattern foundation pit supporting structure is completed；
6) be excavated to the second layer support bottom, repeat step 3,4,5, complete the second layer support setting；It repeats the above steps,
Until being excavated to hole bottom；
7) during pattern foundation pit supporting structure, the power supply in central control system should be regularly replaced, to ensure device
Reliability service；
8) during pattern foundation pit supporting structure, it is assumed that larger change in displacement occurs for support, and emergency system can start at once, and will
The length limit of length control device 24 is dead, and gives a warning, to ensure the safety of foundation pit construction.
The first object of the present invention is to provide a kind of quick foundation pit supporting construction of spliced intelligent control；The second of the present invention
Purpose is to provide the construction method that the supporting construction carries out pattern foundation pit supporting structure.This method can carry out quick supporting to foundation pit, reliably
Control foundation pit on the outside of deformation and soil pressure, and there is higher recycling rate of waterused, be especially suitable for the construction of strip foundation pit.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of foundation pit supporting construction, which is characterized in that including：The steel sheet pile (10) being oppositely arranged, and it is fixed on the steel
Support parts (20) between sheet pile (10)；
The support parts (20) are splicing construction and length is adjustable.
2. foundation pit supporting construction according to claim 1, which is characterized in that the support parts (20) include：
First waist rail (21) and the second waist rail (22) are respectively and vertically fixed on two steel sheet piles (10), the steel plate
Stake (10) and the slot position of truss frame for connecting bar are integrally formed, and the steel sheet pile (10) includes bearing sheet (211)；
Inner supporting structure (23), one end are fixedly connected with second waist rail (22)；
Length control device (24), one end are fixedly connected with the other end of the inner supporting structure (23), the other end and described the
One waist rail (21) is fixedly connected, and the length of the length control device (24) is adjustable.
3. foundation pit supporting construction according to claim 2, which is characterized in that first waist rail (21) and described second
Waist rail (22) is girder structure, and shape is correspondingly arranged with the bearing sheet (211)；
The centre of second waist rail (22) is provided with the hanging groove to match with the end of the inner supporting structure (23)；
Ribbed stiffener (212), the horizontal displacement for constraining the inner supporting structure (23) are provided in the hanging groove.
4. foundation pit supporting construction according to claim 2, which is characterized in that the inner supporting structure (23), including：
First end (231) is connect with the length control device (24)；
The second end (232) is connect with the hanging groove of second waist rail (22)；The second end (232) is hook structure,
It is provided with concave convex texture on the outside of the hook structure；
Connecting rod (233), the first end (231) and the second end (232) are separately positioned on the connecting rod
(233) both ends；The length of the connecting rod (233) is adjustable.
5. foundation pit supporting construction according to claim 4, which is characterized in that the length control device (24), including：
Main body (241), driving gear set (242), reinforcement recycle hydraulic device (243), and the first end (244) are with the second end
(245)；
The cavity in the main body (241) is arranged in the driving gear set (242) and reinforcement cycle hydraulic device (243)
It is interior；
Along the length direction of the main body (241), first end (244) and second end (245) are set respectively
Set the both sides in the main body (241)；
First end (244) connect with the hanging groove of first waist rail (21)；
Second end (245) connect with the first end (231).
6. foundation pit supporting construction according to claim 5, which is characterized in that the driving gear set (242) includes：
Power gear (24210)；
Tooth sector (24211), tooth mouth and the tooth mouth of the power gear (24210) match；
Drive link (24212), axial rotation gear (24213), power excessive gear (24214)；
Power transmitting gear (24215) is connect with the power excessive gear (24214)；
Hydraulic loaded gear (24216), tooth mouth and the tooth mouth of hydraulic power rack (24217) match；
Plane excessive gear (24218)；Hydraulic stem playback power gear (24219)；
Hydraulic stem playback gear (24220), tooth mouth and the tooth mouth of the hydraulic power rack (24217) match.
7. foundation pit supporting construction according to claim 5, which is characterized in that the reinforcement cycle hydraulic device (243), packet
It includes：
Power piston (24310), style one-way flow valve (24311), hydraulic pressure storage warehouse (24312), hydraulic pressure storehouse promote valve (24313),
Hydraulic valve restoring spring (24314), hydraulic packing valve (24315), hydraulic power storehouse (24316), hydraulically powered piston
(24317), hydraulic return line (24318) and hydraulic pressure cutout valve (24319).
8. foundation pit supporting construction according to claim 7, which is characterized in that first end (244) includes panel, institute
It states panel to connect with the hydraulically powered piston (24317), the panel surface is provided with several bolts hole.
9. foundation pit supporting construction according to claim 1, which is characterized in that further include central control system (30) and answer
Anxious system (40)；
The central control system (30), for controlling the support parts (20)；
The emergency system (40) for the working condition to monitoring the support parts (20), and feeds back to the center control
System (30).
10. a kind of construction method of foundation pit supporting construction, which is characterized in that including：
Supporting agent structure is designed according to geological exploration data；
First squeeze into steel sheet pile (10), after squeeze into truss frame for connecting bar, complete the splicing of steel sheet pile (10)；
It is excavated to first layer support setting depth, completes waist rail, inner supporting structure (20), central control system (30), emergent system
The installation of system (40) and the length control device (24) with reinforcement function；
According to design requirement in central control system (30) parameter corresponding with input in emergency system (40)；
It repeats the above steps, until being excavated to hole bottom.
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| CN201810407336.8A CN108385695A (en) | 2018-05-02 | 2018-05-02 | Foundation pit supporting construction and its construction method |
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| CN201810407336.8A CN108385695A (en) | 2018-05-02 | 2018-05-02 | Foundation pit supporting construction and its construction method |
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| CN109469067A (en) * | 2018-10-15 | 2019-03-15 | 鼎宸建设管理有限公司 | Assembled support construction technique based on tool-type combination inner support technology |
| CN109811769A (en) * | 2019-03-19 | 2019-05-28 | 腾达建设集团股份有限公司 | A kind of excavation method |
| CN109826198A (en) * | 2019-01-21 | 2019-05-31 | 腾达建设集团股份有限公司 | Weak soil excavation of subway foundation pit construction method |
| CN109853577A (en) * | 2018-12-25 | 2019-06-07 | 青岛理工大学 | A kind of deep basal pit bracing members On-line Control application prestressing method |
| CN109868828A (en) * | 2019-01-18 | 2019-06-11 | 上海应用技术大学 | A kind of adaptive bracing members of movable type |
| CN111910647A (en) * | 2020-08-20 | 2020-11-10 | 同济大学 | Opposite-pulling type foundation pit supporting device |
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| CN109811769B (en) * | 2019-03-19 | 2021-04-30 | 腾达建设集团股份有限公司 | Foundation pit excavation construction method |
| CN111910647A (en) * | 2020-08-20 | 2020-11-10 | 同济大学 | Opposite-pulling type foundation pit supporting device |
| CN114482065A (en) * | 2021-12-09 | 2022-05-13 | 中建八局第二建设有限公司 | Deep foundation pit construction device for newly-built building, close to subway and connected with subway |
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