CN103939105B - A kind of construction method and structure laying construction shaft above underground construction - Google Patents
A kind of construction method and structure laying construction shaft above underground construction Download PDFInfo
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Abstract
The invention discloses a kind of above underground construction, lay construction shaft construction method and structure, described method comprises: treating in the ground areas above constructing underground building principal space, after choosing the excavation position of construction shaft, the excavation position excavation construction vertical shaft chosen, makes it pass and treats constructing underground building principal space; From construction shaft, excavate out and run through what treat constructing underground building principal space the transverse passage-way treating constructing underground building principal space in a lateral direction; And respectively from the sidewall of transverse passage-way both sides, along the longitudinal direction treating constructing underground building principal space, excavation also supporting treats some pilot tunnels of constructing underground building principal space; Afterwards, based on excavation and the pilot tunnel of supporting completes after the building of constructing underground building, backfill construction vertical shaft.The construction method of underground construction of the present invention, had both been applicable to treat the situation that the underground utilities of constructing underground building periphery, underground structure are more can shorten the construction period again, had reduced temporary structure.
Description
Technical field
The present invention relates to underground engineering construction field, particularly relate to a kind of above underground construction, lay construction shaft construction method and structure.
Background technology
Current China urban population is growing, the population very dense of many big and medium-sized cities, causes traffic above-ground to block serious.In city the underground construction such as underground underpass, underground traffic tunnels, underground utilities tunnel and subway station build more and more.Such as, for alleviating traffic above-ground pressure, such as the metropolis such as Beijing, Shanghai has built many subway lines already; And China's subway construction enters unprecedentedly surging period, increasing big and medium-sized cities are also progressively planned encryption or are opened up new subway line.
When carrying out these underground constructions and building, the method usually adopted has cut and cover method and hidden construction process.Cut and cover tunneling is simple, quick, but because the building such as business, enterprise, finance, local-style dwelling houses in city are intensive, heavy traffic, land price is expensive, in addition intensive underground utilities and the restriction of underground structure, to make in city proper building of the underground constructions such as subway station in subway line, be not easy to adopt on the destruction of surrounding environment or the larger cut and cover method of impact.Hidden construction process, when constructing, does not all excavate the ground of the underground construction part of building in advance, less to surrounding environment influence, is particularly useful for building of city underground construction.
Wherein, city tunneling underground construction (as subway station) adopts PBA(PileBeamArc usually, stake camber) engineering method or cavern-pile method.In underground engineering construction process, construction shaft is arranged at underground construction periphery (construction shaft such as shown in Fig. 1), is entered in underground construction principal space construct by the underground transverse passage-way being parallel to ground.But, the existing underground engineering construction duration is longer, in work progress, temporary structure is more, and, more for the underground utilities of underground construction periphery, underground structure, or surface structures is close to the situation of the road above underground construction, what the construction method of existing tunneling underground construction was not easy to find construction shaft builds place, thus be not suitable for the underground utilities of underground construction periphery, underground structure is more, or surface structures is close to the situation of the road above underground construction.
Therefore, be necessary the construction method providing a kind of underground construction, underground utilities, the underground structure that can be applicable to underground construction periphery are more, or above ground structure is close to the situation of the road above underground construction, can the construction period be shortened again, reduce temporary structure.
Summary of the invention
For the defect that above-mentioned prior art exists, the invention provides a kind of above underground construction, lay construction shaft construction method and structure, both be applicable to treat that the more or surface structures of the underground utilities of constructing underground building periphery, underground structure was close to the situation of the road above underground construction, the construction period of underground construction can be shortened again, reduce temporary structure.
The invention provides a kind of construction method laying construction shaft above underground construction, comprising:
Treating in the ground areas above constructing underground building principal space, after choosing the excavation position of construction shaft, excavate described construction shaft in the excavation position chosen, make described construction shaft pass described in treat constructing underground building principal space;
From described construction shaft, excavate out at the described transverse passage-way treating to treat described in the running through in a lateral direction of constructing underground building principal space constructing underground building principal space; And
Respectively from the sidewall of described transverse passage-way both sides, treat the longitudinal direction of constructing underground building principal space described in edge, excavation also treats some pilot tunnels of constructing underground building principal space described in supporting;
Afterwards, after completing building of described underground construction based on the pilot tunnel excavating also supporting, described construction shaft is backfilled.
Preferably, treat described in that constructing underground building principal space is divided into upper strata, lower floor; Described transverse passage-way comprises: upper strata transverse passage-way and lower floor's transverse passage-way; Described some pilot tunnels comprise: some upper stratas pilot tunnel and some lower floors pilot tunnel; And
Described from described construction shaft, excavate out at the described transverse passage-way treating to treat described in the running through in a lateral direction of constructing underground building principal space constructing underground building principal space; And respectively from the sidewall of described transverse passage-way both sides, described in edge, treat the longitudinal direction of constructing underground building principal space, excavation also treats some pilot tunnels of constructing underground building principal space described in supporting, specifically comprise:
From described construction shaft, excavate out described run through in a lateral direction described in treat lower floor's transverse passage-way of the lower floor of constructing underground building principal space; And respectively from the sidewall of described lower floor's transverse passage-way both sides, along described longitudinal direction, excavation also treats some lower floors pilot tunnel of constructing underground building principal space described in supporting;
Afterwards, from described construction shaft, excavate out described run through in a lateral direction described in treat the upper strata transverse passage-way on the upper strata of constructing underground building principal space; And respectively from the sidewall of transverse passage-way both sides, described upper strata, along described longitudinal direction, excavation also treats some upper stratas pilot tunnel of constructing underground building principal space described in supporting.
Preferably, treat some lower floors pilot tunnel of constructing underground building principal space described in described excavation supporting, specifically comprise:
Adopt interval mode, excavation is some lower floors pilot tunnel described in supporting also; Wherein, the distance between the excavated surface of adjacent lower pilot tunnel is not less than setting value; And
Treat some upper stratas pilot tunnel of constructing underground building principal space described in described excavation supporting, specifically comprise:
Adopt interval mode, excavation is some upper stratas pilot tunnel described in supporting also; Wherein, the distance between the excavated surface of adjacent upper pilot tunnel is not less than described setting value.
Wherein, described in choose the excavation position of construction shaft, specifically comprise:
According to described underground utilities, the underground structure for the treatment of to lay in the top soil body of constructing underground building principal space, choose the excavation position of described construction shaft.
Further, be above set forth in the construction method laying construction shaft above underground construction, also comprise:
Described after choosing the excavation position of construction shaft in the ground areas above constructing underground building principal space two ends respectively excavation construction vertical shaft;
Treat for described the construction shaft that constructing underground building principal space is often held, from this construction shaft, excavate out described run through in a lateral direction described in treat the transverse passage-way of constructing underground building principal space; From treating the side sidewall at constructing underground building principal space center described in this transverse passage-way is close, along described longitudinal direction, excavation also treats some pilot tunnels of constructing underground building principal space described in supporting.
Present invention also offers a kind of constructing structure laying construction shaft above underground construction, comprising:
Construction shaft, its well head is positioned at the ground areas treated above constructing underground building principal space, and treats constructing underground building principal space described in passing;
Transverse passage-way, treats that the horizontal direction of constructing underground building principal space treats constructing underground building principal space described in running through described in edge, intersects be communicated with described construction shaft;
Some pilot tunnels, treat in constructing underground building principal space described in being distributed in, be from the sidewall of the both sides of described transverse passage-way, treat what the longitudinal direction of constructing underground building was excavated, and be communicated with described transverse passage-way described in edge.
Preferably, treat described in that constructing underground building principal space is divided into upper strata, lower floor; And
Described transverse passage-way specifically comprises:
Upper strata transverse passage-way, treats the upper strata of constructing underground building principal space described in being positioned at;
Lower floor's transverse passage-way, treats the lower floor of constructing underground building principal space described in being positioned at.
Preferably, described some pilot tunnels specifically comprise:
Some upper stratas pilot tunnel, treats the upper strata of constructing underground building principal space described in being distributed in;
Some lower floors pilot tunnel, treats the lower floor of constructing underground building principal space described in being distributed in;
Wherein, a corresponding upper strata pilot tunnel be positioned at directly over it of lower floor's pilot tunnel.
Preferably, the pithead position of described construction shaft treats described in basis that above constructing underground building principal space, in the soil body, the underground utilities of laying, the position of underground structure are chosen.
Preferably, be above set forth in the constructing structure laying construction shaft above underground construction, also comprise:
The construction shaft within the scope of the overhead surface at constructing underground building principal space two ends is treated described in two well heads lay respectively at.
In technical scheme of the present invention, treating in the ground areas above constructing underground building principal space, after choosing the excavation position of construction shaft, the excavation position excavation construction vertical shaft chosen, construction shaft is passed and treats constructing underground building principal space, and from construction shaft, excavate out and run through what treat constructing underground building principal space the transverse passage-way treating constructing underground building principal space in a lateral direction; Afterwards, based on the transverse passage-way excavation also supporting pilot tunnel of excavation, and and then building of underground construction is completed.Like this, the construction shaft of excavation, directly through treating constructing underground building principal space, being convenient to being unearthed of the soil body excavated, being shortened the construction period; Meanwhile, the length of the transverse passage-way of excavation only need guarantee to excavate the soil body treated in constructing underground building principal space, decreases temporary structure.And, for treating the situation that the underground utilities of constructing underground building principal space periphery, underground structure are more, in the ground areas excavation position of construction shaft being arranged at treat above constructing underground building principal space, avoid well treat constructing underground building periphery underground utilities, underground structure to the restriction of construction, it also avoid changing its course and impact etc. on underground structure structure on underground utilities.
Accompanying drawing explanation
Fig. 1 is the position view of construction shaft in the underground engineering construction of prior art;
Fig. 2 is the operation schematic diagram laying the construction method of construction shaft above underground construction of the embodiment of the present invention;
Fig. 3 is the position view of construction shaft in the underground engineering construction of the embodiment of the present invention;
Fig. 4 is the position view of part-structure in the underground engineering construction process of the embodiment of the present invention;
Fig. 5 is the schematic diagram laying the constructing structure of construction shaft above underground construction of the embodiment of the present invention.
Detailed description of the invention
For making object of the present invention, technical scheme and advantage clearly understand, enumerate preferred embodiment referring to accompanying drawing, the present invention is described in more detail.But it should be noted that, the many details listed in manual are only used to make reader to have a thorough understanding, even if do not have these specific details also can realize these aspects of the present invention to one or more aspect of the present invention.
In technical scheme of the present invention, construction shaft is laid in and treats non-circumferential above constructing underground building, namely, the construction shaft of laying is directly through treating constructing underground building principal space, and the well head of construction shaft is positioned at the ground areas treated above constructing underground building principal space.After construction shaft has been built, treating to excavate out transverse passage-way in constructing underground building principal space by construction shaft, to carry out treating the soil excavation in constructing underground building principal space, and and then completing building of underground construction.Because construction shaft is directly through treating constructing underground building principal space, the length of the transverse passage-way of excavation only need guarantee to excavate the soil body treated in constructing underground building principal space, decreases temporary structure.Construction shaft is laid in be treated above constructing underground building, is also convenient to being unearthed of the soil body excavated, shortens the construction period; And, for treating the situation that the underground utilities of constructing underground building principal space periphery, underground structure are more, being laid in by construction shaft treats above constructing underground building, the underground utilities of Around, underground structure invariably can be descended well to the restriction of construction, it also avoid changing its course and impact etc. on underground structure structure on underground utilities.And for the situation of the road of above ground structure relatively above underground construction, the construction method be laid in by construction shaft above underground construction is also suitable for.
Technical scheme of the present invention is described in detail below in conjunction with accompanying drawing.A kind of construction method laying construction shaft above underground construction that the embodiment of the present invention provides, as shown in Figure 2, it specifically comprises the steps:
S201: after choosing the excavation position of construction shaft 400 in the ground areas above constructing underground building principal space, carrying out supporting according to the excavation position excavation construction vertical shaft 400 chosen, making construction shaft 400 through treating constructing underground building principal space.
Particularly, when when the underground utilities of constructing underground building periphery, underground structure are more, can according to the position of the underground utilities treating to lay in the soil body above constructing underground building principal space, underground structure, treating the excavation position choosing construction shaft in the ground areas above constructing underground building principal space, and carry out construction shaft excavation, thus the restrictive condition of tunneling underground construction enforcement can be reduced.Such as, treating position, the corresponding ground excavation construction vertical shaft substantially without underground utilities, underground structure in the soil body above constructing underground building principal space.And the excavation position of construction shaft also can be chosen with reference to the position of the underground construction main body pillar designed in advance.
The present invention by treating that constructing underground building principal space is divided into upper strata, lower floor, can excavate with the upper and lower for the treatment of constructing underground building principal space respectively.Fig. 3 is the position view of the construction shaft in the embodiment of the present invention; Fig. 4 is the sectional drawing of I-I in Fig. 3, shows the position view of each structure in underground engineering construction process.Transverse passage-way 450 comprises upper strata transverse passage-way 430 and lower floor's transverse passage-way 440.And the present invention can adopt a point pilot drive method to treat constructing underground building principal space and excavate.Like this, in this step, can also after excavation completes construction shaft 400, to treating in constructing underground building principal space in construction shaft 400, set first upper strata pilot tunnel 410, first lower floor's pilot tunnel 420 and upper strata transverse passage-way 430, the advanced tubule of the periphery, position that punches of lower floor's transverse passage-way 440 and Guan Peng.Wherein, the position that punches of first upper strata pilot tunnel 410, first lower floor's pilot tunnel 420 lays respectively at towards on the sidewall of the vertical shaft treating constructing underground building longitudinal direction; The position that punches of upper strata transverse passage-way 430, lower floor's transverse passage-way 440 lays respectively at towards treating on constructing underground building horizontal direction shaft wall.
In addition, also can reserve on construction shaft 400 sidewall first upper strata pilot tunnel 410, first lower floor's pilot tunnel 420 and upper strata transverse passage-way 430, lower floor's transverse passage-way 440 the position that punches hole after, the sidewall of construction shaft 400 applies the inwall of construction shaft 400, to reinforce the construction shaft of excavation, and ensure the safe excavation of follow-up pilot tunnel and transverse passage-way.Further, construction shaft sidewall also can adopt stiffening ring to design, and with further strengthening construction vertical shaft, prevents caving in of construction shaft sidewall.
Wherein, the number of excavation construction vertical shaft 400 by technician according to treating that the structure of constructing underground building is determined.Such as, as shown in Figure 3, after choosing an excavation position within the scope of constructing underground building principal space two ends and middle overhead surface respectively, three construction shafts are excavated out, and by three construction shafts simultaneously or successively carry out the construction treating constructing underground building, speed of application can be accelerated.In fact, carry out underground engineering construction by three construction shafts and there is no exact sequence.
Wherein, treat constructing underground building principal space two ends and middle two ends and the centre referring to the longitudinal direction treating constructing underground building principal space, and treat that the longitudinal direction of constructing underground building refers to the length direction treating constructing underground building, namely treat the bearing of trend of constructing underground building; Correspondingly, treat that the horizontal direction of constructing underground building refers to the width treating constructing underground building, namely with treat the direction that the longitudinal direction of constructing underground building is perpendicular; Treat that the horizontal direction of constructing underground building parallels with ground usually.
S202: excavation transverse passage-way 450 and the some pilot tunnels treated in constructing underground building principal space.
The excavation position of the construction shaft 400 excavated in above-mentioned steps S201 is positioned at the overhead surface scope treating (non-two ends) in the middle of constructing underground building principal space, in this step, from construction shaft 400, excavate out and run through what treat constructing underground building principal space the transverse passage-way 450 treating constructing underground building principal space in a lateral direction; And respectively from the sidewall of transverse passage-way 450 both sides, along the longitudinal direction treating constructing underground building principal space, excavation also supporting treats some pilot tunnels of constructing underground building principal space.Particularly, for treating that constructing underground building principal space is divided into upper strata, the situation of lower floor, the working procedure excavating upper strata after first excavating lower floor can be adopted, be specifically as follows: from construction shaft 400, in conjunction with the advanced tubule set in above-mentioned steps S201 and Guan Peng, excavate out and treating constructing underground building principal space in a lateral direction, run through lower floor's transverse passage-way 440 of the lower floor treating constructing underground building principal space, and respectively from the sidewall of lower floor's transverse passage-way 440 both sides, along the longitudinal direction treating constructing underground building principal space, excavation also supporting treats some lower floors pilot tunnel of constructing underground building principal space, afterwards, from construction shaft 400, in conjunction with the advanced tubule set in above-mentioned steps S201 and Guan Peng, excavate out treat constructing underground building principal space in a lateral direction, run through the upper strata transverse passage-way 430 on the upper strata for the treatment of constructing underground building principal space, and respectively from the sidewall of upper strata transverse passage-way 430 both sides, along the longitudinal direction treating constructing underground building principal space, excavation also supporting treats some upper stratas pilot tunnel of constructing underground building principal space.
Wherein, can adopt interval mode, excavation also supporting treats some lower floors pilot tunnel of constructing underground building principal space; Wherein, the distance between the excavated surface of adjacent lower pilot tunnel is not less than setting value (such as 15m).Similarly, interval mode can be adopted to excavate also supporting and to treat some upper stratas pilot tunnel of constructing underground building principal space; Wherein, the distance between the excavated surface of adjacent upper pilot tunnel is not less than setting value.Such as, as shown in Figure 5, if will treat that upper strata, the lower floor of constructing underground building principal space are divided into four pilot tunnels respectively and excavate, then in work progress, a kind of mode adopting interval mode to excavate also supporting some lower floors pilot tunnel can be: excavation, supporting first lower floor pilot tunnel 420, second lower floor's pilot tunnel 540 in advance, excavate again, supporting the 3rd lower floor's pilot tunnel 550, the 4th lower floor's pilot tunnel 560, and successively excavated surface is staggered in a longitudinal direction be mutually not less than 15m, to ensure construction safety.Correspondingly, in work progress, a kind of mode adopting interval mode to excavate also supporting some upper stratas pilot tunnel can be: excavation, supporting first upper strata pilot tunnel 410, second upper strata pilot tunnel 510 in advance, excavate again, supporting the 3rd upper strata pilot tunnel 520, the 4th upper strata pilot tunnel 530, and successively excavated surface is staggered in a longitudinal direction be mutually not less than 15m.
Further, before excavation lower floor transverse passage-way 440, also first along treating that the longitudinal direction of constructing underground building principal space excavates setpoint distance to first lower floor's pilot tunnel 420, such as, 10m can be excavated; And when having excavated lower floor's transverse passage-way 440, the two ends of lower floor's transverse passage-way 440 of excavation are closed.Similarly, before excavation upper strata transverse passage-way 430, also can first along treating that the longitudinal direction of constructing underground building principal space excavates setpoint distance to the first upper strata pilot tunnel 410; And when having excavated upper strata transverse passage-way 430, also can close the two ends of the upper strata transverse passage-way 430 of excavation.
More preferably, also can at excavation construction vertical shaft after choosing the excavation position of construction shaft in the ground areas above constructing underground building principal space two ends respectively; For treating the construction shaft that constructing underground building principal space is often held, from this construction shaft, excavating out and running through what treat constructing underground building principal space the transverse passage-way treating constructing underground building principal space in a lateral direction; From this transverse passage-way near the side sidewall treating constructing underground building principal space center, along the longitudinal direction treating constructing underground building principal space, excavation also supporting treats some pilot tunnels of constructing underground building principal space.Thus, based on multiple construction shaft, the construction speed of underground construction can be accelerated.
In actual applications, the excavation length of lower floor's transverse passage-way 440 can ensure to treat that the soil excavation in the lower floor of constructing underground building principal space just can.And in prior art, construction shaft is treating the periphery of constructing underground building principal space, longer transverse passage-way is being needed to treat that constructing underground building principal space excavates to enter.Therefore, the present invention is compared to prior art, and the length of the transverse passage-way of excavation is shorter, decreases temporary structure, and accelerates the construction period.
S203: based on excavation and the pilot tunnel of supporting completes after the building of constructing underground building, backfill construction vertical shaft 400.
In fact, based on excavating in above-mentioned steps S202 and the pilot tunnel of supporting, existing method can be adopted to complete and to treat building of constructing underground building.Treating that constructing underground building principal space excavation is complete, and formed after the permanent structure of constructing underground building, can backfill the interim construction shaft 400 of above-mentioned excavation.
Based on the above-mentioned construction method laying construction shaft above underground construction, the schematic diagram laying the constructing structure of construction shaft above underground construction that the embodiment of the present invention provides as shown in Figure 5, comprising: construction shaft 400, transverse passage-way 450 and some pilot tunnels.
Wherein, the well head of construction shaft 400 is positioned at the ground areas treated above constructing underground building principal space, and through treating constructing underground building principal space.Particularly, this construction shaft can be positioned at the ground areas near the top for the treatment of constructing underground building principal space center.
Transverse passage-way 450 treats constructing underground building principal space along treating that the horizontal direction of constructing underground building principal space runs through, and intersects with construction shaft 400.
Some pilot tunnels, are distributed in and treat in constructing underground building principal space, are from the sidewall of the both sides of transverse passage-way 450, along treating what the longitudinal direction of constructing underground building was excavated.
Further, treat that constructing underground building principal space is divided into upper strata, lower floor.Correspondingly, transverse passage-way 450 specifically comprises: upper strata transverse passage-way 430 and lower floor's transverse passage-way 440.Wherein, upper strata transverse passage-way 430 is positioned at the upper strata for the treatment of constructing underground building principal space; Lower floor's transverse passage-way 440 is positioned at the lower floor treating constructing underground building principal space.
Further, above-mentioned some pilot tunnels specifically comprise: some upper stratas pilot tunnel and some lower floors pilot tunnel; Wherein, some upper stratas pilot tunnel is distributed in the upper strata for the treatment of constructing underground building principal space; Some lower floors pilot tunnel is distributed in the lower floor treating constructing underground building principal space; And, a corresponding upper strata pilot tunnel of lower floor's pilot tunnel.
Wherein, the pithead position of above-mentioned construction shaft 400 chooses according to the underground utilities treating to lay in the soil body above constructing underground building principal space, underground structure.
More preferably, the constructing structure of above-mentioned underground construction also can comprise: two well heads lay respectively at the construction shaft within the scope of the overhead surface treating constructing underground building principal space two ends.
Further, the sidewall of above-mentioned construction shaft applies inner liner wall, and adopt stiffening ring to design.The headwall at the two ends of upper strata transverse passage-way 430 and lower floor's transverse passage-way 440 is closed; And the periphery of upper strata transverse passage-way 430, lower floor's transverse passage-way 440, each upper strata pilot tunnel, each lower floor pilot tunnel has set advanced tubule and Guan Peng respectively.
In sum, in technical scheme of the present invention, treating in the ground areas above constructing underground building principal space, after choosing the excavation position of construction shaft, the excavation position excavation construction vertical shaft chosen, construction shaft is passed and treats constructing underground building principal space, and from construction shaft, excavate out and run through what treat constructing underground building principal space the transverse passage-way treating constructing underground building principal space in a lateral direction; Afterwards, based on the transverse passage-way excavation also supporting pilot tunnel of excavation, and and then building of underground construction is completed.Like this, the construction shaft of excavation, directly through treating constructing underground building principal space, being convenient to being unearthed of the soil body excavated, being shortened the construction period; Meanwhile, the length of the transverse passage-way of excavation only need guarantee to excavate the soil body treated in constructing underground building principal space, decreases temporary structure.And, for treating the situation that the underground utilities of constructing underground building principal space periphery, underground structure are more, in the ground areas excavation position of construction shaft being arranged at treat above constructing underground building principal space, avoid well treat constructing underground building periphery underground utilities, underground structure to the restriction of construction, it also avoid changing its course and impact etc. on underground structure structure on underground utilities.
The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. above underground construction, lay a construction method for construction shaft, it is characterized in that, comprising:
Treating in the ground areas above constructing underground building principal space, after choosing the excavation position of construction shaft, excavate described construction shaft in the excavation position chosen, make described construction shaft pass described in treat constructing underground building principal space;
From described construction shaft, excavate out at the described transverse passage-way treating to treat described in the running through in a lateral direction of constructing underground building principal space constructing underground building principal space; And
Respectively from the sidewall of described transverse passage-way both sides, treat the longitudinal direction of constructing underground building principal space described in edge, excavation also treats some pilot tunnels of constructing underground building principal space described in supporting;
Afterwards, after completing building of described underground construction based on the pilot tunnel excavating also supporting, described construction shaft is backfilled.
2. the method for claim 1, is characterized in that, described in treat that constructing underground building principal space is divided into upper strata, lower floor; Described transverse passage-way comprises: upper strata transverse passage-way and lower floor's transverse passage-way; Described some pilot tunnels comprise: some upper stratas pilot tunnel and some lower floors pilot tunnel; And
Described from described construction shaft, excavate out at the described transverse passage-way treating to treat described in the running through in a lateral direction of constructing underground building principal space constructing underground building principal space; And respectively from the sidewall of described transverse passage-way both sides, described in edge, treat the longitudinal direction of constructing underground building principal space, excavation also treats some pilot tunnels of constructing underground building principal space described in supporting, specifically comprise:
From described construction shaft, excavate out described run through in a lateral direction described in treat lower floor's transverse passage-way of the lower floor of constructing underground building principal space; And respectively from the sidewall of described lower floor's transverse passage-way both sides, along described longitudinal direction, excavation also treats some lower floors pilot tunnel of constructing underground building principal space described in supporting;
Afterwards, from described construction shaft, excavate out described run through in a lateral direction described in treat the upper strata transverse passage-way on the upper strata of constructing underground building principal space; And respectively from the sidewall of transverse passage-way both sides, described upper strata, along described longitudinal direction, excavation also treats some upper stratas pilot tunnel of constructing underground building principal space described in supporting.
3. method as claimed in claim 2, is characterized in that, excavation also treats some lower floors pilot tunnel of constructing underground building principal space described in supporting, specifically comprise:
Adopt interval mode, excavation is some lower floors pilot tunnel described in supporting also; Wherein, the distance between the excavated surface of adjacent lower pilot tunnel is not less than setting value; And
Excavation also treats some upper stratas pilot tunnel of constructing underground building principal space described in supporting, specifically comprise:
Adopt interval mode, excavation is some upper stratas pilot tunnel described in supporting also; Wherein, the distance between the excavated surface of adjacent upper pilot tunnel is not less than described setting value.
4. the method as described in as arbitrary in claim 1-3, is characterized in that, described in choose the excavation position of construction shaft, specifically comprise:
According to described underground utilities, the underground structure for the treatment of to lay in the top soil body of constructing underground building principal space, choose the excavation position of described construction shaft.
5. method as claimed in claim 4, is characterized in that, also comprise:
Described after choosing the excavation position of construction shaft in the ground areas above constructing underground building principal space two ends respectively excavation construction vertical shaft;
Treat for described the construction shaft that constructing underground building principal space is often held, from this construction shaft, excavate out described run through in a lateral direction described in treat the transverse passage-way of constructing underground building principal space; From treating the side sidewall at constructing underground building principal space center described in this transverse passage-way is close, along described longitudinal direction, excavation also treats some pilot tunnels of constructing underground building principal space described in supporting.
6. above underground construction, lay a constructing structure for construction shaft, it is characterized in that, comprising:
Construction shaft, its well head is positioned at the ground areas treated above constructing underground building principal space, and treats constructing underground building principal space described in passing;
Transverse passage-way, treats that the horizontal direction of constructing underground building principal space treats constructing underground building principal space described in running through described in edge, intersects be communicated with described construction shaft;
Some pilot tunnels, treat in constructing underground building principal space described in being distributed in, be from the sidewall of the both sides of described transverse passage-way, treat what the longitudinal direction of constructing underground building was excavated, and be communicated with described transverse passage-way described in edge.
7. structure as claimed in claim 6, is characterized in that, described in treat that constructing underground building principal space is divided into upper strata, lower floor; And
Described transverse passage-way specifically comprises:
Upper strata transverse passage-way, treats the upper strata of constructing underground building principal space described in being positioned at;
Lower floor's transverse passage-way, treats the lower floor of constructing underground building principal space described in being positioned at.
8. structure as claimed in claim 7, it is characterized in that, described some pilot tunnels specifically comprise:
Some upper stratas pilot tunnel, treats the upper strata of constructing underground building principal space described in being distributed in;
Some lower floors pilot tunnel, treats the lower floor of constructing underground building principal space described in being distributed in;
Wherein, a corresponding upper strata pilot tunnel be positioned at directly over it of lower floor's pilot tunnel.
9. structure as claimed in claim 8, is characterized in that, the pithead position of described construction shaft treats described in basis that above constructing underground building principal space, in the soil body, the underground utilities of laying, the position of underground structure are chosen.
10. structure as claimed in claim 9, is characterized in that, also comprise:
The construction shaft within the scope of the overhead surface at constructing underground building principal space two ends is treated described in two well heads lay respectively at.
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| CN104818994A (en) * | 2015-04-30 | 2015-08-05 | 中铁二十二局集团第一工程有限公司 | Urban subway n-shaped double-shaft and double transverse passage plane arrangement system |
| CN104863597B (en) * | 2015-05-27 | 2018-03-02 | 北京市市政工程设计研究总院有限公司 | A kind of construction method transverse direction hole lid method in shallow buried covered excavation Large Underground space |
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