CN208039266U - It is a kind of to exempt to set up the vertical stability structure of stanchion suitable for foundation pit - Google Patents

Abstract

The utility model discloses a kind of to exempt to set up the vertical stability structure of stanchion suitable for foundation pit, belong to foundation pit construction technical field, it passes through two lattice columns of concrete support following suspension arrangement in foundation pit, diagonal brace is respectively set between each lattice column and diaphram wall, it is connected by the upper end of diagonal brace and the top of lattice column, and its lower end is bonded on diaphram wall, the vertical load born by diagonal brace and diaphram wall shared lattice column, the structures such as transverse stable connecting rod and/or bridging are then set between adjacent lattice column, complete to exempt to set up the firm support to foundation pit bracing structure in the case of stanchion.The utility model exempts to set up the vertical stability structure of stanchion suitable for foundation pit, it is simple in structure, setting is easy, the setting of drilled pile can be effectively reduced, the working procedure for simplifying auxiliary shoring system greatly promotes the efficiency of construction while ensureing structural stability and safety, the cost of construction is reduced, there is preferable application value.

Description

It is a kind of to exempt to set up the vertical stability structure of stanchion suitable for foundation pit

Technical field

The utility model belongs to foundation pit construction technical field, and in particular to a kind of to exempt to set up the vertical of stanchion suitable for foundation pit Rock-steady structure.

Background technology

With the continuous development of Modern Traffic and the needs of people's living trip, the effect of subway transportation becomes increasingly It is important.The underground station construction of subway usually requires to open up one bar shaped foundation pit, and completes corresponding laminate in foundation pit and apply The support of work, bar shaped foundation pit is generally laid in the form of to support, and is generally required when foundation pit width is excessive by setting Stand column pile is set to meet the requirement of support system stability, existing stand column pile is usually inserted by the drilled pile and one end of squeezing into hole bottom Enter the lattice column composition of first of support at the top of drilled pile other end connection foundation pit, the setting of stand column pile can be effectively ensured foundation pit and apply The stability of work.

But stand column pile usually only does temporary support structure use, the needs of support system stability is often only used for, in base After hole construction is completed, generally requires and remove lattice column；As temporary support structure, traditional column pilework is not only Difficulty of construction is big, long construction period, influences the efficiency of foundation pit construction, but also can cause larger economic waste.

Although in patent application CN 201710648025.6, it is proposed that in a kind of suspension type suitable for base pit engineering Support system, by the way that multiple top supporting mechanisms are arranged between two rows of fender posts/coping Guan Liang, in top braces machine A piece vertical sunpender, the then combination by several above-mentioned top supporting mechanisms and vertical sunpender and oblique drawing are set in the middle part of structure The structures such as bar and linking beam provide vertical supporting for base pit engineering, reduce the setting of stand column pile to a certain extent, improve base Cheat the efficiency of construction；But when carrying out foundation pit top board construction with above-mentioned support construction, oblique drawbar can be produced with top board construction Raw conflict, it is necessary to the stability removed, and remove first of support after oblique drawbar, which is unable to get, to be effectively ensured, so Certain Stable Defects are will produce, and are supported using single vertical sunpender in above-mentioned support construction, that bears is vertical Load is born by the oblique drawbar of its both sides mostly so that the load that oblique drawbar undertakes is larger, the stabilization of suspension strut system There are certain hidden danger for property, and especially when foundation pit width is larger, the structural stability of above-mentioned support system is poorer, so it is answered With having some limitations.

Utility model content

For the disadvantages described above or Improvement requirement of the prior art, the utility model provides one kind and exempts to set up suitable for foundation pit The vertical stability structure of stanchion, wherein by two lattice columns of concrete support following suspension arrangement of foundation pit, in each lattice column Diagonal brace is respectively set between diaphram wall, the vertical lotus born by diagonal brace and diaphram wall shared lattice column It carries, and the structures such as transverse stable connecting rod and/or bridging is set between adjacent lattice column, completion is exempted to set up right in the case of stanchion The firm support of foundation pit bracing structure simplifies construction procedure while ensureing structure stress stability, promotes foundation pit and applies The efficiency of work reduces the cost of foundation pit construction.

To achieve the above object, the utility model provide it is a kind of exempt to set up the vertical stability structure of stanchion suitable for foundation pit, It is arranged along foundation pit width direction including being suspended in and is set under more concrete supports along the foundation pit length direction The lattice column of side, which is characterized in that

The lattice column being suspended in below each concrete support is two, and it is mixed to be vertically provided at this respectively The lower section at solidifying soil support both ends is simultaneously spaced apart with the diaphram wall of the foundation pit both sides respectively；

It is provided with transverse stable connecting rod, the lateral stability between two lattice columns below the concrete support The both ends of connecting rod are stably connected with two lattice columns respectively, and the lattice column of two suspentions is connected as firm frame knot Structure；And

It is provided between the diaphram wall and the lattice column positioned at the lattice column side in rod-shaped diagonal brace, The upper end of the diagonal brace is bonded at the top of the lattice column, and lower end is bonded in the corresponding diaphram wall On, so that the pressure that the lattice column is born can be transmitted on the diaphram wall to increase the vertical stability structure Stability.

Two lattice columns at least below a concrete support point as a further improvement of the utility model, Inequal with the minimum range of the diaphram wall, i.e., two lattice columns below the concrete support are along the concrete The vertical center line of support is symmetrical arranged.

The lattice column below several concrete supports is in the base as a further improvement of the utility model, It is alternatively arranged in two separate ranks on the length direction in hole, and the axis of the spaced lattice column of each column is in same perpendicular On.

Corresponding at least one row are along the spaced institute of the foundation pit length direction as a further improvement of the utility model, It states lattice column and is provided with steel coupling beam, the steel coupling beam is stably connected with the row lattice column respectively, and the steel coupling beam is arranged To realize the Auxiliary support to the longitudinal bracing and ensure the lattice column along the base below the longitudinal bracing of the foundation pit Cheat the stability of length direction.

The longitudinal bracing is that setting is spaced along the foundation pit length direction as a further improvement of the utility model, More bracing members, the both ends of the bracing members abut the diaphram wall of the foundation pit both sides respectively.

Two groups of adjacent lattices below adjacent two concrete supports as a further improvement of the utility model, It is respectively arranged with bridging between column, the bridging includes two connecting rods arranged in a crossed manner, and the connecting rod arranged in a crossed manner Both ends are separately connected the top of lattice column and the middle part of adjacent thereto lattice column for increasing Stability of the lattice column on the foundation pit length direction.

The lattice column can be segmented dismounting during the foundation pit construction as a further improvement of the utility model, The lattice column is passed through when layer floor slab construction each to avoid the foundation pit.

The diagonal brace can be removed when the foundation pit construction is to top plate as a further improvement of the utility model, accordingly Ground can correspond to the lattice column setting concrete foundation, to realize the institute after partial demolition on the laminate below the top plate Stating lattice column bottom can be bonded in the concrete foundation, then complete the Auxiliary support to the concrete support.

In general, have the above technical solutions conceived by the present invention are compared with the prior art, with following Beneficial effect：

(1) the utility model suitable for foundation pit exempts to set up the vertical stability structure of stanchion, passes through the coagulation in foundation pit Soil support two lattice columns of following suspension arrangement, complete the Auxiliary support of foundation pit bracing structure with it, reduce drilled pile Setting, simplify the setting process of auxiliary support structure, improve the efficiency of foundation pit construction, and lattice column is to be divided into coagulation Two of soil support both ends, structure-bearing is more reasonable, stability higher, and safety is stronger；

(2) the utility model suitable for foundation pit exempts to set up the vertical stability structure of stanchion, by each lattice column and Diagonal brace is respectively set between diaphram wall, is connected by the upper end of diagonal brace and the top of lattice column, and its lower end is bonded On diaphram wall, the vertical load that is born by diagonal brace and diaphram wall shared lattice column so that vertical stability The stability of structure is more preferable, the Auxiliary support safety higher of lattice column, especially when foundation pit width is larger, concrete The double lattice columns in support lower section and the setting form of diclinic support can fully ensure that the stability of foundation pit supporting construction；

(3) the utility model suitable for foundation pit exempts to set up the vertical stability structure of stanchion, by same concrete Transverse stable connecting rod is laterally set between two lattice columns below supporting, two lattice columns are separately connected by transverse stable connecting rod, from And stable frame structure is formed, ensure stability of two lattice columns in foundation pit width direction, prevents it in foundation pit width side It rocks upwards, further promotes stability and the safety of vertical stability structure；

(4) the utility model suitable for foundation pit exempts to set up the vertical stability structure of stanchion, by along foundation pit length Scissors support structure is set between two adjacent lattice columns under two adjacent concrete supports of direction setting, to ensure lattice column knot Stability of the structure on foundation pit structure length direction further promotes stability and the safety of vertical stability structure；

(5) the utility model suitable for foundation pit exempts to set up the vertical stability structure of stanchion, simple in structure, setting letter Just, the setting of drilled pile can be effectively reduced, simplifies the working procedure of the auxiliary shoring system of foundation pit bracing structure, is ensureing While structural stability and safety, the efficiency of construction is greatly improved, reduces the cost of construction, there is preferable promote Application value.

Description of the drawings

Fig. 1 is first of support the vertical stability structure for exempt to set up suitable for foundation pit in the utility model embodiment stanchion Horizontal layout schematic diagram；

Fig. 2 is first of support the vertical stability structure for exempt to set up suitable for foundation pit in the utility model embodiment stanchion The support construction floor plan of lower section；

Fig. 3 is to be suitable for foundation pit in the utility model embodiment to exempt to set up the vertical stability structural plan arrangement signal of stanchion Schematic diagram in A-A direction in figure；

Fig. 4 is to be suitable for foundation pit in the utility model embodiment to exempt to set up the vertical stability structural plan arrangement signal of stanchion B-B direction schematic diagram in figure；

Fig. 5 is to exempt to set up the vertical stability structure of stanchion on construction foundation pit top suitable for foundation pit in the utility model embodiment Structural schematic diagram when plate；

In all the appended drawings, same reference numeral indicates identical technical characteristic, specially：1. lattice column, 2. coagulations Soil support, 3. transverse stable connecting rods, 4. Guan Liangs, 5. concrete connecting rods, 6. diaphram walls, 7. bracing members, 8. steel coupling beams, 9. tiltedly Support, 10. bridgings, 11. concrete foundations, 12. stablize support.

Specific implementation mode

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only explaining this Utility model is not used to limit the utility model.

As long as in addition, technical characteristic involved in the various embodiments of the present invention described below each other it Between do not constitute conflict and can be combined with each other.

Exempt to set up institute the vertical stability structure such as Fig. 1~5 of stanchion in the preferred embodiment in the utility model suitable for foundation pit Show.Wherein, Fig. 1 is first of support the vertical stability structure for exempt to set up suitable for foundation pit in the utility model embodiment stanchion Horizontal layout schematic diagram；Fig. 2 is to exempt to set up the vertical stability structure of stanchion suitable for foundation pit in the utility model embodiment The support construction floor plan of first of support lower section；Fig. 3 is to exempt to set up column suitable for foundation pit in the utility model embodiment Schematic diagram in A-A direction in the vertical stability structural plan arrangement schematic diagram of stake；Fig. 4 is to be suitable for foundation pit in the utility model embodiment Exempt to set up B-B direction schematic diagram in the vertical stability structural plan arrangement schematic diagram of stanchion；Fig. 5 is fitted in the utility model embodiment Exempt to set up structural schematic diagram of the vertical stability structure of stanchion in construction foundation pit top plate for foundation pit.

Vertical stability structure setting in the preferred embodiment in the utility model is below first of support of foundation pit, preferably in fact First in example support is applied as the concrete support 2 that is arranged along foundation pit width direction, both ends be bonded respectively positioned at Two side roof part of foundation pit and in the Guan Liang 4 of foundation pit length direction setting, Guan Liang 4 in preferred embodiment and concrete support 2 End integration pours, and the axis of concrete support 2 is perpendicular to Guan Liang 4, as shown in fig. 1, then in foundation pit length Multiple concrete supports 2 are arranged in interval on direction, to form first of support construction of foundation pit；Two-phase in preferred embodiment Concrete connecting rod 5 is provided between adjacent concrete support 2, to ensure stabilization of the concrete support 2 on foundation pit length direction.

Further, there is lattice column 2 in the following suspension arrangement of concrete support 2, as the foundation pit knot for exempting to set up stanchion The vertical stability structure of structure, the lattice column that every 2 lower section of concrete support is suspended in midair is set as two, and is vertically provided at respectively mixed The lower section of two close end is leaned in solidifying soil support 2, and lattice column 1 is attached with end and concrete support 2, and junction is apart from Guan Liang 4 Certain length；Further, it is preferable to be located at two lattice columns 1 of 2 lower section of same concrete support in embodiment apart from side Guan Liang 4 Minimum length it is equal, the length in a preferred embodiment be L, as shown in Figure 3, i.e., two lattice columns 1 are along the concrete support 2 Vertical center line be symmetrical arranged, L in preferred embodiment is preferably 3m, certainly, the value of L be also not limited to it is above-mentioned preferably, It can need preferably other numerical value, such as 2m, 4m, 5m according to practice of construction stress.

Further, the lattice column 1 in the preferred embodiment in the utility model is preferably passed through with four angle steel a certain number of Batten plate be welded into section be rectangular long frame-type structure, the end that lattice column 1 is connect with concrete support 2 preferably with concrete branch Support 2 pour it is integral, with ensure end connection stability；Further, it is preferable to 2 lower section of same concrete support in embodiment Suspention two lattice columns 1 between be provided with transverse stable connecting rod 3, along foundation pit width direction be arranged, i.e., with concrete support 2 Axis it is parallel, and the both ends of transverse stable connecting rod 3 are bonded respectively on two lattice columns 1, to connect two lattice columns 1 At the entirety of frame-type, the stability of lattice column 1 is promoted；Further, axis direction of the transverse stable connecting rod 3 in lattice column 1 On preferably by being set as more, such as 2,3,4, and the installation position of transverse stable connecting rod 3 can correspond to first Being supported per one below support construction, is arranged a transverse stable connecting rod 3 such as at second support, supports and ties in third road A piece transverse stable connecting rod 3 is set at structure, and so on.

Further, the diaphram wall 6 for 4 lower section of end and Guan Liang that corresponding lattice column 1 is connect with concrete support 2 It is provided with diagonal brace 9, top is connected to the top of lattice column 1, and bottom is connected on diaphram wall 6, slanting to be formed The vertical force that lattice column 1 is subject to then is transmitted on the diaphram wall 6 of foundation pit enclosure structure by support construction, by 9 He of diagonal brace Diaphram wall 6 shares the vertical load that lattice column 1 is born jointly；It is further preferred that 9 upper end of diagonal brace and concrete support The lattice column 1 of 2 lower parts is welded to connect, and 9 lower end of diagonal brace is welded in pre-plugged in diaphram wall 6 on steel plate, necessary When can further preferably add certain Skid Resistance Measures and increase the stabilization that diagonal brace 9 is welded with lattice column 1 and diaphram wall 6 Property；Fixed position of 9 lower end of diagonal brace on diaphram wall 6 is H at a distance from corresponding Guan Liang 4 in preferred embodiment, preferably in fact It applies the H in example and is preferably set as 3m, i.e., formed between diagonal brace 9 and part concrete support 2 and diaphram wall 6 at this time first-class Side right angled triangle, as shown in Figure 3, certainly, 9 lower end of diagonal brace is also not limited to above-mentioned choosing value at a distance from corresponding Guan Liang 4, Can be preferably other numerical value, such as 2m, 4m, 5m according to actual needs.

Further, it is preferable to can be by adding between the lattice column 1 that 2 lower section of adjacent two concrete support is suspended in midair in embodiment Bridging 10 is further consolidated, bridging 10 be arranged below two adjacent concrete supports 2 two adjacent lattice columns 1 it Between, including two connecting rods arranged in a crossed manner, wherein one end of a connecting rod connects the top of a lattice column 1 wherein, the other end The middle part for being connected to another lattice column 1；Correspondingly, one end of another connecting rod is connected to the lattice column that top is connected with connecting rod 1 middle part, the other end is connected to the top that middle part is connected with the lattice column 1 of connecting rod, arranged in a crossed manner to form two connecting rods Scissors support structure, as shown in Figure 4 so that lattice column 1 can guarantee sufficient stability on foundation pit length direction.

It is further preferred that the second support and/or the support of third road in preferred embodiment can be by being arranged a fixed number The bracing members 7 of amount realize that the both ends of bracing members 7 abut the diaphram wall 6 of foundation pit width direction both sides respectively, and in foundation pit Setting is spaced on length direction, as shown in Figure 4；Correspondingly, preferred embodiment is under the support construction that above-mentioned bracing members 7 are formed Side is provided with steel coupling beam 8 along foundation pit length direction, and steel coupling beam 8 is firm with the spaced lattice column 1 of foundation pit length direction respectively Connection so that bracing members 7 are located just at its top, and the support construction so as to be formed to several bracing members 7 provides vertical supporting, And it is further ensured that stability of the lattice column 1 on foundation pit length direction, the setting of steel coupling beam 8 and foundation pit are deep in preferred embodiment Spaced apart lattice column 1 is corresponding in 7 number of plies of bracing members and foundation pit length direction arranged on degree direction.

It further,, can be by the lattice column of respective heights per one layer of structure of having constructed upwards in the work progress of foundation pit 1, transverse stable connecting rod 3, bracing members 7 and steel coupling beam 8 are removed, and avoid passing through lattice column when each layer floor slab construction of foundation pit internal structure 1；Further, when foundation pit construction proceeds to foundation pit top board construction, the presence of diagonal brace 9, which often generates the construction of top plate, to be done It disturbs, presets concrete foundation 11 on the laminate of completion of first having constructed below lattice column 1 preferred at this time, and by the bottom of lattice column 1 Portion is bonded in the concrete foundation 11, then removes diagonal brace 9, and auxiliary is provided to lattice column 1 by concrete foundation 11 Support ensures the structural stability of top concrete support 2；It is further preferred that the side in concrete foundation 11 is provided with A certain number of stable supports 12, one end of which is fixed in concrete foundation 11, the other end is bonded on lattice column, to Auxiliary support is provided for lattice column, as shown in Figure 5.

Exempt to set up the vertical stability structure of stanchion suitable for foundation pit in the preferred embodiment in the utility model, by coagulation The lattice columns 1 of 2 a pair of of suspention of lower section setting of soil support, with itself and the diagonal brace 9 that is arranged between diaphram wall 6 and lattice column 1 Auxiliary support is provided for support system, improves the stability of support system, reduces the setting of stand column pile, improves foundation pit construction Efficiency, reduce stand column pile setting caused by project cost, the economic benefit of foundation pit construction is improved, especially in foundation pit When width is larger, the setting form of the double lattice columns 1 in 2 lower section of concrete support and diclinic support 9 can fully ensure that pattern foundation pit supporting structure The stability of structure；And the combining form of double lattice columns 1 and transverse stable connecting rod 3 makes vertical stability structure in foundation pit width side Upward stability greatly promotes, and the bridging 10 on foundation pit length direction between adjacent lattice column 1 is so that vertical stability knot Stability of the structure on foundation pit length direction greatly promotes, to fully ensure that the stability and stability of Foundation Pit Construction.

As it will be easily appreciated by one skilled in the art that the above is only the preferred embodiment of the utility model only, not To limit the utility model, any modification made within the spirit and principle of the present invention, equivalent replacement and change Into etc., it should be included within the scope of protection of this utility model.

Claims (8)

1. a kind of exempt to set up the vertical stability structure of stanchion suitable for foundation pit, including is suspended in along the setting of foundation pit width direction and edge The foundation pit length direction is set to the lattice column (1) below more concrete supports (2), which is characterized in that

The lattice column (1) being suspended in below each concrete support (2) is two, is vertically provided at this respectively The lower section at concrete support (2) both ends is simultaneously spaced apart with the diaphram wall of the foundation pit both sides (6) respectively；

It is provided with transverse stable connecting rod (3), the cross between two lattice columns (1) below the concrete support (2) It is stably connected with respectively with two lattice columns (1) to the both ends for stablizing connecting rod (3), even by the lattice column (1) of two suspentions It is connected in firm frame structure；And

It is being provided in rod-shaped between the diaphram wall (6) of the lattice column (1) side and the lattice column (1) The upper end of diagonal brace (9), the diagonal brace (9) is bonded at the top of the lattice column (1), and lower end is bonded corresponding On the diaphram wall (6), so that the pressure that the lattice column (1) is born can be transmitted to the diaphram wall (6) On to increase the stability of the vertical stability structure.

2. according to claim 1 exempt to set up the vertical stability structure of stanchion suitable for foundation pit, wherein at least described in one Two lattice columns (1) below concrete support (2) are equal with the minimum range of the diaphram wall (6) respectively, i.e., should Two lattice columns (1) below concrete support (2) are symmetrical arranged along the vertical center line of the concrete support (2).

3. according to claim 1 or 2 exempt to set up the vertical stability structure of stanchion suitable for foundation pit, wherein several described The lattice column (1) below concrete support (2) is alternatively arranged in two separate ranks on the length direction of the foundation pit, and between each column It is on same perpendicular every the axis of the lattice column (1) of arrangement.

4. according to claim 3 exempt to set up the vertical stability structure of stanchion suitable for foundation pit, wherein corresponding at least one row The spaced lattice column (1) of the foundation pit length direction is provided with steel coupling beam (8), the steel coupling beam (8) respectively with The row lattice column (1) is stably connected with, and the steel coupling beam (8) is arranged below the longitudinal bracing of the foundation pit with realization pair The Auxiliary support of the longitudinal bracing simultaneously ensures stability of the lattice column (1) along the foundation pit length direction.

5. according to claim 4 exempt to set up the vertical stability structure of stanchion suitable for foundation pit, wherein the longitudinal bracing For the spaced more bracing members (7) along the foundation pit length direction, described in the both ends of the bracing members (7) abut respectively The diaphram wall (6) of foundation pit both sides.

6. according to claim 1 or 2 exempt to set up the vertical stability structure of stanchion suitable for foundation pit, wherein adjacent two institute It states and is respectively arranged with bridging (10), the bridging between two groups below concrete support (2) the adjacent lattice columns (1) (10) include two connecting rods arranged in a crossed manner, and the connecting rod two end arranged in a crossed manner is separately connected a lattice column (1) Top and adjacent thereto lattice column (1) middle part it is long in the foundation pit for increasing the lattice column (1) Spend the stability on direction.

7. according to claim 1 or 2 exempt to set up the vertical stability structure of stanchion suitable for foundation pit, wherein the lattice Column (1) can be segmented dismounting during the foundation pit construction, and when layer floor slab construction each to avoid the foundation pit passes through the lattice Column (1).

8. according to claim 7 exempt to set up the vertical stability structure of stanchion suitable for foundation pit, wherein the diagonal brace (9) It can be removed when the foundation pit construction is to top plate, correspondingly, the lattice column (1) can be corresponded on the laminate below the top plate Concrete foundation (11) is set, to realize that the lattice column (1) bottom after partial demolition can be bonded in the concrete On basic (11), the Auxiliary support to the concrete support (2) is then completed.