A kind of reverse construction machinery
Technical field
The present invention relates to a kind of novel reverse construction Machine Design.
Background technology
Contrary sequence method: first along building basement axis or around construct diaphram wall or other supporting construction, interior of building has off position to pour or lays intermediate sup-poning pile and post simultaneously, bears superstructure deadweight and the support of construction loads as construction period before base plate back cover.Then construct the beam slab floor structure on one layer of ground, as the support that diaphram wall rigidity is the biggest, the downward earth excavation and pour each layer underground structure, until base plate back cover.Simultaneously as the floor structure on one layer of ground completes, create condition for Superstructure Construction, it is possible to the most successively carry out the construction of superstructure simultaneously.So ground is upper and lower constructs, until engineering terminates simultaneously.
The advantage of contrary sequence method:
1. can make construction and the underground infrastructures construction parallel stereo operation of building superstructure, when level big at construction scope, upper and lower is many, about can save man-hour 1/3.
2. stress is well reasonable, and building enclosure deflection is little, thus the impact on adjacent building is the least.
3. construction can be lacked by weather, and earth excavation can less or the most not account for total lever factor.
Utilize the underground space the most to greatest extent, expand basement construction area.
5. a Rotating fields plane can be as work platforms, it is not necessary to additionally sets up excavation work platforms and internal stay, the most significantly reduces the temporary projects such as support and work platforms, decrease operating expenses.
6. carrying out due to excavation and the staggered of construction, inverse self load making structure is directly taken on by column and is transferred to ground, and when decreasing heavy excavation, the unloading impact on supporting course, reduces ground springback capacity in foundation ditch.
The deficiency that contrary sequence method exists:
1. cut the earth problem: owing to underground floor height limits, need small-sized digging machine or rely on manpower to cut the earth.But the most often lack small-sized machine, big machinery and manpower therefore can only be relied on to cut the earth, big machinery in-convenience in use, manpower is cut the earth inefficient, only making up with tactics of human sea, the time takes 24 hours, is so to sacrifice labour cost as cost.Shoveling is to carry out under top seal state, and a number of middlebearing column and precipitation well-point pipe are also distributed in foundation ditch, still lacks small-sized digging machine small-sized, flexible, efficient, makes the difficulty of shoveling increase.
2. underground floor height limits: contrary sequence method Support Position is limited by basement floor height, it is impossible to adjust height, basement as high in larger layers, sometimes needs separately set interim horizontal support or strengthen section and the arrangement of reinforcement of enclosure wall.
3. construct the reinforcement at hole: if using " closed contrary sequence method ", transporting of earthwork during construction downwards, transporting of material is required at floor layer reserving one or two bigger construction mouth, ensures being normally carried out of construction mouth, consolidation process must be carried out afterwards, need certain expense.
Present Research, level and development trend both at home and abroad: popularization and application contrary sequence method, the safety of underground engineering can be improved, construction costs can be greatly saved, shorten the construction period, prevent ground around from occurring, the multiple material handling method of deep foundation pit of a kind of rising and promotional value, in Liaoning, Shanghai, Guangzhou this kind of area application reverse construction deep foundation pit of tall buildings more.More typical have Shanghai special type foundation engineering institute office building, is positioned at sky, Xujiahui, roads in southwestern Shanghai angle key bridge.2 layers, this building underground, 5 layers on the ground, base plate buried depth is-7.30m.Constructing with superstructure to explore base structure, to shortening total time of construction, building have employed Top-down Construction Technique and achieves successfully simultaneously.And for example, Building is amassed with 4 layers, reverse construction underground, on the ground 22 layers by the perseverance of Shanghai the second construction engineering corporation construction, the deep 17m of foundation ditch, construction has only been used 5 months, the whole duration substantially accelerates, and reduces support expense 4,000,000 yuan, and periphery pipe settlement is only 15mm, surrounding road and house owed by a citizen displacement, all within 5mm, achieve significant economic benefit and social benefit.Thus start one contrary sequence method heat in District of Shanghai, the most in succession have tens of the engineerings such as square tomorrow, Jing Shazhu sparetime university tall building to use reverse construction.
At present, contrary sequence method has issued the National Standard of the People's Republic of China's Code for design of building listing calendar year 2001 promulgation in;Various places disclose basement top-down method construction (YJGF02-96) and (YJGF07-98) the most successively, thus can illustrate that reverse construction reaches its maturity, its having very promising prospects in deep foundation pit support.If eighties of last century is the contrary sequence method starting period, after developing rapidly the most in China and widely applying, nowadays it is in the technology maturation phase, it will have the period of full bloom of great development.
Summary of the invention
In order to solve above-mentioned technical problem, the present invention designs the novel construction machinery of a set of applicable reverse construction feature, this construction machinery, meets feature small-sized, flexible, efficient, is substantially reduced the difficulty of construction;Can solve owing to underground floor height limits, the construction volume increased as far as possible;Reserved construction mouth can be reduced as far as possible or reduce construction volume and operating expenses required for reinforcing reserved construction mouth.
In order to achieve the above object, the present invention is achieved by the following technical solutions:
nullThe present invention is a kind of reverse construction machinery,Including main box and the crawler belt of carrying main box motion,One end of main box is provided with shoveling roller,It is provided with hydraulic jacking device in the lower section of shoveling roller and up and down reciprocatingly operates the collection soil crushing device of drive,The other end at main box is provided with pumping soil-discharging device,Main box is divided into two little casings,One end of one of them small box is constructing operation room,The other end stores the soil body collected temporarily,One end of another small box is to collect to come from the soil body transporter collecting the hack that the device that breaks ground transports,The other end is to store the soil body collected temporarily,The one end of the soil body that the storage of two small box is collected communicates,The soil body collected is discharged by pumping soil-discharging device,Drain into construction reserved opening,Vertical transport goes out ground,It is provided with the broken edge of a knife in the front end, bottom collecting soil crushing device,It is additionally provided with casing transporter in collecting soil crushing device.
nullThe invention has the beneficial effects as follows: by rolling broken and rotating broken combining,By complete for the soil body and efficient must carry out break process,Hack for broken generation,Ingenious running also by conveyer belt transmits and collects,At construction mouth the most reserved by pumping soil-discharging device dispatch for the temporary soil body gathered,And send ground by vertical transferring device,The process of whole shoveling is because of the appropriate design of digging machine,Two steps of shoveling and transport are combined,Disclosure satisfy that reverse construction is required small-sized、Flexible and efficient requirement,And this kind of shoveling mode due to machinery the most small-sized,Can not the situation of smooth construction owing to underground floor height limits thus without existing,Avoid therefore required hand excavation,Greatly reduce construction volume,The soil broken off only needs to be carried out the transport of vertical direction by reserved opening,The size of reserved opening of therefore constructing can be greatly reduced,Reduce because to reinforce the expense required for reserved construction mouth and construction volume,Decrease construction volume,Reduce operating expenses,Shorten construction period.
The present invention meets feature small-sized, flexible, efficient, is substantially reduced the difficulty of construction;Can solve owing to underground floor height limits, the construction volume increased as far as possible;Reserved construction mouth can be reduced as far as possible or reduce construction volume and operating expenses required for reinforcing reserved construction mouth.
Accompanying drawing explanation
Fig. 1 is front view of the present invention.
Fig. 2 is top view of the present invention.
Fig. 3 is the profile that the present invention is positioned at the conveyer belt collecting soil crushing device below shoveling roller.
Fig. 4 is the profile of the conveyer belt of part small box of the present invention.
Fig. 5 is the structural representation that the present invention crushes the edge of a knife.
Wherein: 1-main box, 2-crawler belt, 3-shoveling roller, 4-collects soil crushing device, 5-constructing operation room, and 6-pumps soil-discharging device, 7-hydraulic jacking device, 8-transporter, and 9-casing transporter, 10-crushes the edge of a knife.
Detailed description of the invention
In order to deepen the understanding of the present invention, being described in further detail the present invention below in conjunction with drawings and Examples, this embodiment is only used for explaining the present invention, does not constitute protection scope of the present invention and limits.
nullAs Figure 1-5,The present invention is a kind of reverse construction machinery,Including main box 1 and the crawler belt 2 of carrying main box 1 motion,One end of described main box 1 is provided with shoveling roller 3,It is provided with hydraulic jacking device 7 in the lower section of described shoveling roller 3 and up and down reciprocatingly operates the collection soil crushing device 4 of drive,The other end at described main box 1 is provided with pumping soil-discharging device 6,The soil that shoveling roller is crushed is collected transport,Shoveling is combined by whole shoveling process with transport,Reasonable and efficient,It is positioned at the mechanical shoveling roller in main box 1 front,Little blade work is driven by roller,Breaker is up and down reciprocatingly operated by hydraulic jacking device simultaneously,The broken soil body,The broken soil body is collected by being positioned at the collection soil crushing device below shoveling roller,Described main box 1 is divided into two little casings,One end of one of them small box is constructing operation room 5,The other end stores the soil body collected temporarily,One end of another small box is to collect to come from described collection and break ground the soil body transporter 8 of hack that device 4 transports,The other end is to store the soil body collected temporarily,The one end of the soil body that the storage of two small box is collected communicates,The soil body collected is discharged by described pumping soil-discharging device 6,Drain into construction reserved opening,Vertical transport goes out ground,It is provided with the broken edge of a knife 10 in the front end, bottom of described collection soil crushing device 4,The soil body in the corner that shoveling roller can not be constructed,Can be processed by these small-sized rotary broken edges of a knife,It is additionally provided with casing transporter 9 in described collection soil crushing device 4,Roller and small rotary formula crush the edge of a knife and crush the hack of generation,Drop down onto the transporter i.e. conveyer belt 8 of bottom,Conveyer belt operates,Hack is all transported to right-hand member,And fall on the casing transporter i.e. casing conveyer belt 9 being positioned at post casing,Casing conveyer belt will temporarily store the place of the soil body in broken soil body transport to main box.
As it is shown in figure 1, main box 1 is carried on crawler belt 2, being advanced by the drive of crawler belt 2, one end of main box 1 is provided with roller shoveling device i.e. shoveling roller 3, by the instruction sent inside constructing operation room 5, carries out digging.
As in figure 2 it is shown, main box is classified largely into two little casings, left-half casing front end is constructing operation room, and right half part casing front end is soil body transporter, collects the hack collecting breaker 8 transport come from below shoveling roller.Two box backs in left and right communicate, for the soil body of interim store collected.The soil body collected is discharged by pumping soil-discharging device 6, drains into construction reserved opening, and vertical transport goes out ground.
As it is shown on figure 3, the transporter 8 that the bottom collecting soil crushing device 4 is arranged, also there are the small-sized broken edge of a knife 10, the soil body in the corner that shoveling roller 3 can not be constructed in front end, can be processed by these small-sized rotary broken edges of a knife 10.Shoveling roller 3 and small rotary formula crush the broken hack produced of the edge of a knife 10, drop down onto the transporter i.e. conveyer belt 8 of bottom, conveyer belt 8 operates, hack is all transported to right-hand member, and falling on the casing transporter i.e. casing conveyer belt 9 being positioned at right case, casing conveyer belt will temporarily store the place of the soil body in broken soil body transport to casing.
As shown in Figure 4, casing transporter i.e. casing conveyer belt 9 upwards transports the broken soil body, it is simple to the collection of the soil body and accumulation.
As it is shown in figure 5, the setting that the broken edge of a knife 10 is six groups of blades, efficient hack earth can must be cut.
The present invention is by rolling broken and rotating broken combining, by complete for the soil body and efficient must carry out break process, hack for broken generation, ingenious running also by conveyer belt transmits and collects, at construction mouth the most reserved by pumping soil-discharging device dispatch for the temporary soil body gathered, and send ground by vertical transferring device.The process of whole shoveling is because of the appropriate design of this novel digging machine, two steps of shoveling and transport are combined, disclosure satisfy that required small-sized, the flexible and efficient requirement of reverse construction, and this kind of shoveling mode due to machinery the most small-sized, can not the situation of smooth construction thus without existing owing to underground floor height limits, avoid therefore required hand excavation, greatly reduce construction volume.The soil broken off only needs to be carried out the transport of vertical direction by reserved opening, and the size of reserved opening of therefore constructing can be greatly reduced, and reduces because to reinforce the expense required for reserved construction mouth and construction volume.Decrease construction volume, reduce operating expenses, shorten construction period.