CN205152983U - Stratum pre -reinforcing of underground space construction handles structure - Google Patents
Stratum pre -reinforcing of underground space construction handles structure Download PDFInfo
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- CN205152983U CN205152983U CN201520817943.3U CN201520817943U CN205152983U CN 205152983 U CN205152983 U CN 205152983U CN 201520817943 U CN201520817943 U CN 201520817943U CN 205152983 U CN205152983 U CN 205152983U
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- underground space
- castinplace pile
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- punching
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Abstract
The utility model discloses a stratum pre -reinforcing of underground space construction handles structure is provided with the level and punches the bored concrete pile and fill with vertical punching along planning to build the peripheral stratum of underground space outline line, horizontal bored concrete pile forms the cross -section simple beam formula supporting construction who is located on the tunnelling face with vertical bored concrete pile overlap joint, this kind of pre -reinforcing handles the structure, the stability of the stratum is improved and intensity, and then improved underground space and excavated the stability of country rock afterwards, when guaranteeing the underground space tunnelling, thereby the tunnelling face top soil body does not produce slump assurance construction to go on smoothly and is under construction safety, and do not receive geographical environment's restriction, can realize crossing and the intercommunication between the underground space, can more fully effectively utilize underground space, to being close to the mountain of the loess plateau general configuration of the earth's surface and this method of the cave dwelling formula of building is especially applicable, the main part that can regard as whole building supports, the construction method is simple, the shock resistance is good, can reach long -term firm effect.
Description
Technical field
The utility model relates to a kind of underground space construction method, particularly a kind of stratum pre-reinforcement process structure of underground space construction.
Background technology
Along with urbanization advances, cause city aboveground space to become more and more " little ", only have the scientific development underground space, effectively could improve bearing capacity and the capability of sustainable development in city.Develop the underground space, be conducive to saving and utilize soil.Cave building is one of raw mode of underground space utilization, and as the hole of underground space earth building type, its form of construction work is: dig ground, ground scrapes out, and after sheer is scraped, just starts to beat kiln, after cave dwelling is accomplished fluently, be arrowhead kiln with that, or be " picking kiln ", " milling kiln ".Back down the beginning from kiln and pick out arch, light is scraped by kiln side, scrapes smooth, complete even if beat kiln like this.After cave dwelling dries, then with loess and the broken wheat straw of hand hay cutter and mud, be used for stall.The mud dry ground of stall and just have muscle, the plane of mud one-tenth is smooth smooth-going.Wet soil and mud sticky not handy.Stall at least mud is two-layer, thick mud one deck, thin mud one deck, also has three layers, mud.Live of a specified duration, kiln wall sooting in the future, can mud again.3rd step pricks gable, peace door and window.After puddling is complete, then prick gable, peace door and window with native weight.Certainly, in prior art, the utilization of the underground space is not limited to the cave dwelling of prototype structure, and the cave type building built by the mountain is constantly risen.Generally, after Underground Space Excavation, country rock generation moderate finite deformation, bad stability, can cause the sedimentation on earth's surface time serious, and then serious ground structure breakoff phenomenon can be brought, in Underground Space Excavation, front geotechnical stability is most important, is related to the safety of engineering construction, in order to ensure the stability of tunnel excavation, certain pre-reinforcement measure is taked to be very important.In prior art, more pre-reinforcement measure in Underground Space Excavation, is used to be slip casting, ductule, front bolt anchorage measure etc.
The measure of a kind of shed ding support pre-reinforcement of ductule sand, the generally stablizing effect that plays to face by the reinforcing country rock of face, but the pipe diameter of ductule and arrangement have considerable influence to the stress in conduit, and underground space Rock-soil Mass Structure is larger to ductule structure influence, especially, in the underground space structure of soft stratum and big cross section span, the design of ductule directly affects its result of use.Much effects are not played in the convex country rock of control chiltern, the impact of length on ground settlement of ductule is large simultaneously, ductule only has to combine with the preliminary bracing of underground space country rock and could form certain support system, and then play its consolidation effect, must ensure that the lap length of ductule is consistent with the length that face overlaps.
The measure of slip casting pre-reinforcement has unique advantage in the pre-reinforcement of face, effectively can improve the Analysis of Field Geotechnical Parameters of face, change its stressing conditions, thus reaches certain surrounding rock stability object.But, slip casting effect quality again relation expires the performance of function and efficacy, phase execution conditions require higher, be easy to the problem occurring the wall for grouting cracking that construction wrong causes, and then cause spillage phenomenon, both affect efficiency of construction and the quality of slip casting, have influence on again the performance of slip casting pre-reinforcement measure function and efficacy.
Front bolt support is that anchor pole is squeezed into earth's surface rock mass, utilizes the holder class of the special tectonic of its body of rod, head and afterbody and country rock to be closely linked, and produces suspention, compound beam effect, thus reaches the object of supporting.But front bolt support measure cannot close country rock, can not prevent weathering, time one length will cause peeling off of fissure rock between anchor pole.
Utility model content
In view of this, the purpose of this utility model is the stratum pre-reinforcement process structure providing a kind of underground space construction, before Underground Space Excavation, level is carried out to the reinforcement of vertical direction integral reinforcing and then formed to go up and support the supporting and protection structure on stratum along planning to build underground space outline line surrounding formations, improve stability and the intensity on stratum, and then the stability of country rock after raising Underground Space Excavation, when ensureing underground space driving, above development end, the soil body or rock do not produce slump thus ensure that construction is carried out and construction safety smoothly, and not by the restriction of geographical environment, crossing and intercommunication between the underground space can be realized, more fully can effectively utilize the underground space, construction method is simple, and effect firm for a long time can be reached.
The stratum pre-reinforcement process structure of underground space construction of the present utility model, be provided with level punching castinplace pile and the castinplace pile that vertically punches along planning to build underground space outline line surrounding formations, described horizontal castinplace pile and vertical castinplace pile are connected to form the cross section beam type supporting and protection structure be positioned in development end;
Further, the stratum that described beam type supporting and protection structure is moved towards along the underground space equidistantly distributes;
Further, described horizontal castinplace pile two ends are be fixedly connected with vertical castinplace pile top;
Further, the horizontal reinforcement in described level punching castinplace pile runs through vertical punching castinplace pile and is connected with anchor device, and the vertical reinforcing bar vertically in punching castinplace pile distributes along the horizontal reinforcement both sides in level punching castinplace pile.
Further, described level punching castinplace pile is for being filled with concrete jacking steel pipe;
Further, described level punching castinplace pile and castinplace pile cross section of vertically punching are circular configuration.
The beneficial effects of the utility model: the stratum pre-reinforcement process structure of underground space construction of the present utility model, before Underground Space Excavation, level is carried out to the reinforcement of vertical direction integral reinforcing and then formed to go up and support the supporting and protection structure on stratum along planning to build underground space outline line surrounding formations, improve the stability on stratum, compressive strength and shear strength, and then the stability of country rock after raising Underground Space Excavation, when ensureing underground space driving, above development end, the soil body does not produce slump thus ensures that construction is carried out and construction safety smoothly, and not by the restriction of geographical environment, crossing and intercommunication between the underground space can be realized, more fully can effectively utilize the underground space, it is especially applicable that the cave type built for being close to mountain of loess plateau landforms builds the method, can be used as the body supports of whole building, construction method is simple, shock resistance is good, effect firm for a long time can be reached.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described:
Fig. 1 is underground space pre-reinforcement process structural representation of the present utility model;
Fig. 2 is the sectional drawing of level punching castinplace pile and the castinplace pile connecting portion that vertically punches.
Detailed description of the invention
Fig. 1 is underground space pre-reinforcement process structural representation, and Fig. 2 is the sectional drawing of level punching castinplace pile and the castinplace pile connecting portion that vertically punches; As shown in the figure: the stratum pre-reinforcement process structure of the underground space construction of the present embodiment, comprise the following steps: before the excavation underground space 4, pour into post 2 and be connected to form along planning to build the underground space 4 outline line surrounding formations level punching castinplace pile 1 with vertically punching the cross section freely-supported beam type supporting and protection structure be positioned in development end; Before Underground Space Excavation, level is carried out to the reinforcement of vertical direction integral reinforcing and then formed to go up and support the supporting and protection structure on stratum along planning to build underground space outline line surrounding formations, vertical punching perfusion post 2 carries out planning to build above the underground space, level punching castinplace pile 1 carries out on the stratum of next-door neighbour development end side, first local excavation stratum is as the working face of level punching castinplace pile 1, adopt the method to improve the self-stability on stratum, compressive strength and shear strength, and then improve the stability of country rock after Underground Space Excavation.
In the present embodiment, the stratum that described beam type supporting and protection structure is moved towards along the underground space equidistantly distributes; The Rock And Soil of underground spatially side and side is stopped and supporting, avoids collapsing and the stratum settlement on underground space top of country rock in underground space tunneling construction.
In the present embodiment, described horizontal castinplace pile two ends are be fixedly connected with vertical castinplace pile top.
In the present embodiment, carry out level punching castinplace pile 1 again after first carrying out vertically punching perfusion post 2 construction and construct; After above stratum, vertically post is poured in punching downwards, be the working face of stratum, development end adjacent side excavated section as leveling peg, set by detection and determine that the punch position of horizontal stanchion punches, then pour into post, leveling peg is overlapped and forms freely-supported beam type supporting and protection structure with Vertical Pile top.
In the present embodiment, after first carrying out vertically punching and level punching, carry out the construction of perfusion post again; Vertically punch downwards and be the working face of stratum, development end adjacent side excavated section as leveling peg in stratum in development end, set by detection and determine that the punch position of horizontal stanchion punches, horizontal stake holes two ends are communicated with vertical stake holes top, and then carry out perfusion post integrated construction shaping formation stake girder construction, ensure the globality between stake and beam and structural strength.
In the present embodiment, the horizontal reinforcement in described level punching castinplace pile 1 runs through vertical punching castinplace pile 2 and is connected with anchor device, and the vertical reinforcing bar 21 vertically in punching castinplace pile 2 is uniformly distributed along horizontal reinforcement 11 both sides being positioned at level punching castinplace pile 1; in vertical punching castinplace pile 2 vertically the distribution of reinforcing bar 21 to get around horizontal reinforcement 11 in the level punching castinplace pile 1 cross direction profiles position in vertical punching castinplace pile 2 for benchmark, namely, vertical reinforcing bar 21 in vertical punching castinplace pile 2 is along in the both sides concrete of horizontal reinforcement 11 laterally fixing in the castinplace pile 2 that vertically punches, avoiding vertical reinforcing bar 21 impact of vertically punching in castinplace pile 2 to be fixed on the level horizontal reinforcement 11 punched in castinplace pile 1 vertically punches in castinplace pile 2, be convenient to construction level punching castinplace pile 1 on vertical punching castinplace pile 2 after shaping, vertical punching castinplace pile 2 is subject to the horizontal and vertical reinforcement of horizontal reinforcement 11 and vertical reinforcing bar 21 simultaneously, in the underground space, the framework effect upwards supported is played by vertically punch castinplace pile 2 and the level frame construction that castinplace pile 1 is connected to form of punching, level is carried out to the reinforcement of vertical direction integral reinforcing and then formed to go up and support the supporting and protection structure on stratum to planning to build underground space outline line surrounding formations, improve the self-stability on stratum, compressive strength and shear strength, and then the stability of country rock after raising Underground Space Excavation, when ensureing underground space driving, above development end, the soil body does not produce slump thus ensures that construction is carried out and construction safety smoothly.
In the present embodiment, vertically punching in castinplace pile 2 work progress, when transferring reinforcing bar after drilling forming, the horizontal reinforcement 11 making vertical reinforcing bar 21 be distributed as level punching castinplace pile 1 along both sides, center, hole is horizontally through vertically punching castinplace pile 2 center and reserves certain space, then concrete perfusion, is convenient to being fixedly connected with of level punching castinplace pile 1 and the vertical castinplace pile 2 that punches.
In the present embodiment, described level punching castinplace pile is for being filled with concrete jacking steel pipe; Described level punching castinplace pile is formed by concrete perfusion after steel pipe jacking, by means of the top power that jacking device produces in working pit, overcomes the frictional force of pipeline and surrounding soil, is headed in soil layer by the route of pipeline by design, and the earthwork transported.After one pipe joint completes and heads into soil layer, more lower second section pipe continues jacking.Its principle is by means of main top oil cylinder and the thrust such as pipeline enclosure, relay well, is vertically fixedly connected with the vertical castinplace pile 2 that punches in punching castinplace pile 2 using entering into through soil layer in working pit as the tool pipe of horizontal castinplace pile 1.
In the present embodiment, tremie continuous stratification perfusion in stake holes is adopted to be added with the concrete of accelerating admixture; The density that hole inner concrete is filled can be ensured, guarantee that the intensity of every root perfusion post is consistent, and then ensure the uniformity of stress deformation, improve the compressive strength of castinplace pile, and then improve the stability of rock-soil layer.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (6)
1. the stratum pre-reinforcement process structure of a underground space construction, it is characterized in that: be provided with level punching castinplace pile and the castinplace pile that vertically punches along planning to build underground space outline line surrounding formations, described horizontal castinplace pile and vertical castinplace pile are connected to form the cross section beam type supporting and protection structure be positioned in development end.
2. the stratum pre-reinforcement process structure of underground space construction according to claim 1, is characterized in that: the stratum that described beam type supporting and protection structure is moved towards along the underground space equidistantly distributes.
3. the stratum pre-reinforcement process structure of underground space construction according to claim 2, is characterized in that: described horizontal castinplace pile two ends are be fixedly connected with vertical castinplace pile top.
4. the stratum pre-reinforcement process structure of underground space construction according to claim 1, it is characterized in that: the horizontal reinforcement in described level punching castinplace pile runs through vertical punching castinplace pile and is connected with anchor device, and the vertical reinforcing bar vertically in punching castinplace pile distributes along the horizontal reinforcement both sides in level punching castinplace pile.
5. the stratum pre-reinforcement process structure of the underground space construction according to the arbitrary claim of claim 1-4, is characterized in that: described level punching castinplace pile is for being filled with concrete jacking steel pipe.
6. the stratum pre-reinforcement process structure of underground space construction according to claim 5, is characterized in that: described level punching castinplace pile and vertically punching castinplace pile cross section are circular configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520817943.3U CN205152983U (en) | 2015-10-20 | 2015-10-20 | Stratum pre -reinforcing of underground space construction handles structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520817943.3U CN205152983U (en) | 2015-10-20 | 2015-10-20 | Stratum pre -reinforcing of underground space construction handles structure |
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| Publication Number | Publication Date |
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| CN205152983U true CN205152983U (en) | 2016-04-13 |
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| CN201520817943.3U Expired - Fee Related CN205152983U (en) | 2015-10-20 | 2015-10-20 | Stratum pre -reinforcing of underground space construction handles structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863681A (en) * | 2016-06-27 | 2016-08-17 | 西北大学 | Quick protecting method for sloughing and sand sliding of roof of excavated sandy loess tunnel |
| CN106168025A (en) * | 2016-06-15 | 2016-11-30 | 苏州杰姆斯特机械有限公司 | A kind of construction ground anti-aging ruggedized construction |
| CN106223309A (en) * | 2016-06-16 | 2016-12-14 | 苏州杰姆斯特机械有限公司 | A kind of construction anticorrosion foundation reinforcement method |
| CN106149743B (en) * | 2016-06-15 | 2018-05-22 | 苏州杰姆斯特机械有限公司 | A kind of construction sub-surface ruggedized construction |
-
2015
- 2015-10-20 CN CN201520817943.3U patent/CN205152983U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106168025A (en) * | 2016-06-15 | 2016-11-30 | 苏州杰姆斯特机械有限公司 | A kind of construction ground anti-aging ruggedized construction |
| CN106149743B (en) * | 2016-06-15 | 2018-05-22 | 苏州杰姆斯特机械有限公司 | A kind of construction sub-surface ruggedized construction |
| CN106223309A (en) * | 2016-06-16 | 2016-12-14 | 苏州杰姆斯特机械有限公司 | A kind of construction anticorrosion foundation reinforcement method |
| CN105863681A (en) * | 2016-06-27 | 2016-08-17 | 西北大学 | Quick protecting method for sloughing and sand sliding of roof of excavated sandy loess tunnel |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160413 Termination date: 20181020 |