CN207700208U - High gradient slope top of the slope construction/build object anchor raft foundation construction - Google Patents
High gradient slope top of the slope construction/build object anchor raft foundation construction Download PDFInfo
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- CN207700208U CN207700208U CN201721747565.1U CN201721747565U CN207700208U CN 207700208 U CN207700208 U CN 207700208U CN 201721747565 U CN201721747565 U CN 201721747565U CN 207700208 U CN207700208 U CN 207700208U
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Abstract
High gradient slope top of the slope construction/build object anchor raft foundation construction, anchor cable（1）It is the anchoring section by being connected with massif（3）, prestressed tensioning section is provided（4）And it and builds（Structure）That builds that object is connected pours section（5）Composition；Pass through anchor cable（1）With build（Structure）Build plank frame in object basis（2）It is connected in horizontal direction, the ability that construction/build object resists horizontal loading can be improved；Pass through once grouting pipe（13）, secondary grouting pipe（14）By mortar（8）Inject anchor hole（24）Make anchor cable（1）It is anchoring section with the part that massif is securely connect（3）；Secondary grouting pipe（14）Slip casting section is provided with injected hole（15）, injected hole（15）Using preventing mortar（8）The rubber film poured into（16）Sealing of hole.
Description
Technical field
The utility model is related to foundation engineering fields, the more particularly to anchor under the limited conditions of high gradient slope building on the top of slope space
Raft foundation constructing technology.
Background technology
With quickly propelling for China's infrastructure and Process of Urbanization Construction, urban land demand constantly increases, and can use and build
Space is fewer and fewer, especially in some Mountainous Cities, huge construction land demand and can build between the critical shortage of space
Contradiction increasingly highlight.People are forced in mountain and hill area and build house, some developers are even more to be built using mountain environment
Residential building, garden district and mountain scene cell；In addition, the pylon built on high gradient slope, signal base station, wind-driven generator also by
It is cumulative more.Under conditions of high gradient slope top of the slope construction of buildings, building, building（Hereinafter referred to as construction/build object）It is inevitable
There is side to face sky side close to side slope, so, in construction/build under object load action, it will the stability of side slope is seriously affected,
And the safe handling of building is easily influenced when unstability occurs for side slope.In top of the slope construction/build object construction project, current base
Plinth construction measure mainly has：（1）The distance for increasing construction/build object distance side slope, when encountering high gradient slope and top of the slope is built space and had
It is often not suitable in limited time.（2）Using pile foundation, when construction/build object by the horizontal loading for facing sky side to side slope, construction/build
Side slope is generated larger horizontal loading and moment of flexure by object, seriously affects the stability of side slope；In embankment side slope, side slope faces sky
Side amount of fill is often bigger than massif side amount of fill, and the big side soil body of amount of fill is compared with the small side soil body settlement after construction bigger of amount of fill, pile body
The negative friction bigger born, the stake that sky side is faced positioned at side slope are more also easy to produce larger sedimentation compared with the stake of massif side so that construction/build
Object to side slope face it is empty roll oblique, influence construction/build object safety；When side slope slides, it is located in sliding coverage
Stake is by by larger horizontal applied force, so as to cause stake with unstability slope-mass slide displacement, causes construction/build object occurred level position
It moves, generates crack, or even destroy.（3）Embedded depth of foundation is increased by increasing the basement number of plies, is generally required when using such measure
Deep pit excavation greatly increases engineering construction cost；It, can not be effective when building basis is located in semi-filling and semi-excavating slopes
Control construction/build the inclination that object faces sky side to side slope；When there is geological process, since the side on the building basis in side slope is leaned on
Nearly massif, the other side is close to side slope, and the side slope side soil body can not provide enough resistance horizontal earthquake lotuses for both the above basis
The ability of load, construction/build object easily roll oblique, and the easy unstability of side slope to side slope, and the safety and stability of side slope and construction/build object will be by
It seriously threatens.As it can be seen that several measures at present all cannot be satisfied builds demand in the case where top of the slope builds space limited conditions, seek one kind
It can ensure construction/build object safety under high gradient slope environment and the base configuration of slope stability is extremely urgent.
Invention content
The purpose of this utility model is to provide a kind of high gradient slope top of the slope construction/build the novel anchor raft foundation construction of object.
The utility model is high gradient slope top of the slope construction/build object anchor raft foundation construction, which includes anchor cable 1 and build
Structure/build plank frame 2 in object basis, anchor cable 1 be by connected with massif anchoring section 3, provide prestressed tensioning section 4 and and
What construction/build object was connected pours the composition of section 5；It is connected in horizontal direction by anchor cable 1 and construction/build plank frame 2 in object basis
It connects, the ability that construction/build object resists horizontal loading can be improved；Mortar 8 is injected by once grouting pipe 13, secondary grouting pipe 14
Anchor hole 24 makes anchor cable 1 with the part that massif is securely connect be anchoring section 3；14 slip casting section of secondary grouting pipe is provided with injected hole
15, injected hole 15, which uses, prevents 16 sealing of hole of rubber film that mortar 8 pours into；In once grouting pipe 13, secondary grouting pipe 14 and steel
It is provided with centering holder 9, once grouting pipe 13 and secondary grouting pipe 14 on the pencil body that twisted wire 10 forms and penetrates centering holder 9
Inside, the binding of steel strand wires 10 make steel strand wires 10, once grouting pipe 13 and secondary grouting pipe 14 be maintained to 9 outside of middle holder
The center of anchor hole 24；Centering holder 9 be by a diameter of 60mm~80mm, a length of 200mm~300mm steel pipes 11 and three by
Reinforcing bar is bent what manufactured holder 12 was constituted with certain radian；Guiding cap 7 is welded in the end of 3 steel strand wires 10 of anchoring section.
The utility model has the beneficial effects that：（1）Massif and construction/build object are connected in horizontal direction by anchor cable, greatly
Amplitude improves construction/build object and resists the ability for facing sky side horizontal loading towards side slope, the shock resistance of enhancing construction/build object.
（2）By to construction/build the horizontal pre-applied force of object application so that construction/build object generates redistribution to the additional stress of ground, specifically
It shows as facing sky side additional stress close to side slope and becoming smaller, close to massif side, additional stress accordingly increases, to reduce construction/build object
The influence of side slope improves the stability of side slope and the safety of construction/build object.（3）The base configuration of the utility model is constructed
Large-scale construction equipment is not needed in the process, and when construction/build object construction space is limited or has inconvenient traffic, the base configuration is more
It is applicable in.The utility model, which compensates for existing base configuration, can not be effective against the deficiency for facing sky side load towards side slope, improve
Safety and the shock resistance of construction/build object reduce the influence of construction/build object side slope, keep the stability of side slope, and work of constructing
Skill is simple, does not need Large Construction equipment, cheap.
Description of the drawings
Fig. 1 is the sectional view that the utility model is applied in raft foundation, and Fig. 2 is the utility model in construction/build object stake
The sectional view applied in raft foundation, Fig. 3 are the utility model anchor raft connection detail drawings, and Fig. 4 is that anchoring section 3 constructs in the utility model
Detail drawing, Fig. 5 are 9 structural map of centering holder, and Fig. 6 is A-A sectional views in Fig. 5, and Fig. 7 is guiding cap 7, and Fig. 8 is B-B sections in Fig. 7
Figure, Fig. 9 are 14 slip casting sections of secondary grouting pipe, and Figure 10 is the detail of construction of 4 steel strand wires 10 of tensioning section, and Figure 11 is to pour 5 anchorage 6 of section
The detail of construction, Figure 12 are 21 detail drawing of anchor slab, and Figure 13 is 20 detail drawing of anchor backing plate.Reference numeral and correspondence are entitled：Anchor cable 1 is built
Structure/build plank frame 2 in object basis, anchoring section 3, tensioning section 4, pour section 5, anchorage 6, guiding cap 7, mortar 8, centering holder 9,
Steel strand wires 10, steel pipe 11, holder 12, once grouting pipe 13, secondary grouting pipe 14, injected hole 15, rubber film 16, lubricating oil
Fat 17, bellows 18, channel steel 19, anchor backing plate 20, anchor slab 21, intermediate plate 22, central hole 23, anchor hole 24, building superstructure
25。
Specific implementation mode
As shown in Fig. 1 ~ Figure 13, the utility model is high gradient slope top of the slope construction/build object anchor raft foundation construction, the basis structure
It makes and is made of anchor cable 1 and construction/build plank frame 2 in object basis.Anchor cable 1 be by anchored with massif anchoring section 3, provide answer in advance
It the tensioning section 4 of power and is formed positioned at the section 5 that pours of construction/build in object basis；Pass through once grouting pipe 13, secondary grouting pipe 14
Anchor cable 1 is set with the part that massif is securely connect to be anchoring section 3 the injection anchor hole 24 of mortar 8；In once grouting pipe 13, secondary injection
It starches and one centering holder 9 is set every 2m~3m on the pencil body that pipe 14 and steel strand wires 10 form, once grouting pipe 13 and secondary
Grouting Pipe 14 penetrates the inside of centering holder 9, and the binding of steel strand wires 10 makes steel strand wires 10, once grouting pipe to 9 outside of middle holder
13 and secondary grouting pipe 14 be maintained at the center of anchor hole 24；Centering holder 9 be by an a diameter of 60mm~80mm, it is a length of
200mm~300mm steel pipes 11 and three are made of 6 reinforcing bars with holder 12 made of certain radian bending；Secondary grouting pipe
14 slip casting sections are provided with injected hole 15, and injected hole 15, which uses, prevents 16 sealing of hole of rubber film that mortar pours into；Guiding cap 7 is welded in
The end of 3 steel strand wires 10 of anchoring section；Tensioning section 4 is to show anchor cable 1 to apply prestressed part, is mainly organized as steel strand wires
10, lubricant grease 17 is coated on this section of 10 body of rod of steel strand wires, and is enclosed with bellows 18 on the outside；It refers to anchor cable 1 to pour section 5
Positioned at construction/build the part in plank frame 2 in object basis；Section is poured to be made of steel strand wires 10 and anchorage 6；Anchorage includes
Channel steel 19, anchor backing plate 20 and anchor slab 21 are provided with the hole of steel strand 10 on anchor slab 21, intermediate plate 22 are placed in hole,
There is a central hole 23 in 20 center of anchor backing plate；By two channel steels 19 back to setting, steel strand wires 10 penetrate two 19 cracks of channel steel
It penetrates anchor backing plate 20 again afterwards, applies installation anchor slab 20 after prestressing force, intermediate plate 22 is utilized to lock prestressing force.
Below in conjunction with the accompanying drawings and the specific embodiments to the utility model characteristic expansion further description, illustrated embodiment
It is served only for explaining the utility model, is not intended to limit the scope of the utility model.It is all in this reality after reading the utility model
Within novel spirit and principle, made by all any modification, equivalent and improvement be intended to be limited solely by the guarantor of the utility model
It protects within range.
The operation principle of the utility model：Construction/build object basis is connected with massif in horizontal direction by anchor cable, makes to build
Structure/build object can resist the horizontal loading for facing sky side towards side slope, effective to control top of the slope construction/build object and face sky side to side slope
Displacement improves slope stability and construction/build object safety to reduce the influence of construction/build object side slope.
As shown in Figure 1, Figure 2, Figure 3 shows, which is made of anchor cable 1 and construction/build plank frame 2 in object basis.Anchor
Rope 1 be by anchored with massif anchoring section 3, provide prestressed tensioning section 4 and positioned at construction/build in the plank frame of object basis
Pour section 5 composition.
As shown in Figure 1, Figure 2, Figure 3 shows, it refers to that anchor cable 1 is located at construction/build the portion in plank frame 2 in object basis to pour section 5
Point；Section is poured to be made of steel strand wires 10 and anchorage 6.
As shown in Figure 1, Figure 2, shown in Fig. 3 and Figure 10, tensioning section 4 is to show anchor cable 1 to apply prestressed part, is mainly formed
For steel strand wires 10.
As shown in figure 3, anchor cable 1 and the angle of horizontal plane are 5 °~45 °, 4 length of tensioning section of steel strand wires 10 is 5000mm
~8000mm.
As shown in Fig. 4, Fig. 5, Fig. 6, the injection anchor hole 24 of mortar 8 is made by anchor by once grouting pipe 13, secondary grouting pipe 14
Rope 1 is anchoring section 3 with the part that massif is securely connect.
As shown in figure 5, centering holder 9 is 6 reinforcing bars steel pipe 11 and three with holder made of certain radian bending
12 are constituted, steel pipe 11 a diameter of 70mm of centering holder 9, length 250mm, the distance of 12 vault of holder to 11 surface of steel pipe
For 40mm.
As shown in Fig. 4, Fig. 5, Fig. 6, on the pencil body of once grouting pipe 13, secondary grouting pipe 14 and steel strand wires 10 composition
One centering holder 9 is set every 3000mm, once grouting pipe 13 and secondary grouting pipe 14 penetrate the inside of centering holder 9, steel
The binding of twisted wire 10 makes steel strand wires 10, once grouting pipe 13 and secondary grouting pipe 14 be maintained at anchor hole 24 to 9 outside of middle holder
Center.
As shown in Figure 7, Figure 8, guiding cap 7 is welded in the end of 3 steel strand wires 10 of anchoring section.
As shown in figure 9,14 slip casting section of secondary grouting pipe is provided with injected hole 15, injected hole 15, which uses, prevents mortar from pouring into
16 sealing of hole of rubber film, 15 spacing of injected hole on secondary grouting pipe 14 are 0.5m, and a circle number is 4.
As shown in Figure 10, it is coated with lubricant grease 17 on 10 body of rod of tensioning section steel strand wires, and is enclosed with bellows on the outside
18。
As shown in Figure 11, Figure 12, Figure 13, anchorage includes channel steel 19, anchor backing plate 20 and anchor slab 21, is provided on anchor slab 21
The hole of steel strand 10 is placed with intermediate plate 22 in hole, and there is a central hole 23 in 20 center of anchor backing plate.By two channel steels 19
Back to setting, steel strand wires 10 penetrate anchor backing plate 20 again after penetrating two 19 cracks of channel steel, apply prestressing force and install anchor slab later
20, lock prestressing force using intermediate plate 22.
As shown in Figure 11,12, anchor slab 21 and anchor backing plate 20 are that steel are made, and 21 diameter of anchor slab is more than anchor backing plate 20
Central hole diameter, and central hole diameter ties up rear diameter more than multi beam steel strand wires 10.
As shown in Fig. 1~Figure 13, high gradient slope top of the slope construction/build the construction method that the novel anchor raft foundation of object constructs, step
Suddenly it is：
（1）Make anchor cable 1：To the uniform coating lubricating oil fat 17 in 10 surface layer of steel strand wires of tensioning section 4, it is inserted in bellows later
18, adhesive waterproof tape is wound to the end of bellows 18, to prevent steel strand wires 10 from corroding；It is bored in the anchoring section of secondary grouting pipe 14
Hole, spacing of wells 500mm, each node drill 4~6, and rubber film 16 is wrapped up to sealing of hole in outside；By a diameter of 60mm
~80mm, a length of 200mm~300mm steel pipes 11 and three be bent with certain radian 6 reinforcing bars made of the uniformly weldering of holder 12
Be connected to the outside of steel pipe 11, become a centering holder 9, the distance on vault to 11 surface of steel pipe of holder 12 be 30mm~
40mm；Steel strand wires 10, once grouting pipe 13 and secondary grouting pipe 14 are bound into bunchy, once grouting pipe 13 using centering holder 9
And secondary grouting pipe 14, away from 10 end 500mm~1200mm of steel strand wires, 9 spacing of centering holder is 2000mm~3000mm；It will grow
2~4 small sectors are longitudinally cut for 10 end of 200mm~300mm steel pipes, 10 end of steel pipe is welded as tip shape, is become
For guiding cap 7；Guiding cap 7 is welded in the end of 3 steel strand wires 10 of anchoring section；
（2）Unwrapping wire and positioning：Unwrapping wire, excavation pit are carried out with measuring instrument according to design, then anchor cable is positioned with total powerstation
Position is arranged, anchor hole of constructing, anchor hole diameter is generally 120mm~150mm；
（3）Construction anchoring section 3：The pencil body that once grouting pipe 13 and secondary grouting pipe 14 and steel strand wires 10 are constituted is put into
Anchor hole 24, mortar 8 is injected by once grouting pipe 13 in anchor hole 24, until slurries are overflowed from aperture；Wait for that mortar Final 8 degree reaches
To design value 80% when with the pressure of 0.4MPa~0.8MPa by secondary grouting pipe 14 by cement paste inject anchor hole 24 in,
Once grouting pipe 13 is pulled out after first slip casting, extra secondary grouting pipe 14 is cut off after secondary grouting and uses mortar
8 block secondary grouting pipe 14；
（4）According to（1）Step~the（3）Step is constructed the anchoring of next working face anchor cable 1 successively with excavation of foundation pit
Section 3, until excavation of foundation pit finishes；
（5）Arrange channel steel 19：To construction/build 2 formwork of plank frame in object basis, assembling reinforcement, by two channel steels 19 with
It builds（Structure）The reinforcement welding for building plank frame 2 in object basis is integrated, and channel steel 19 is kept back to welding, two 19 cracks of channel steel
120mm~150mm；
（6）Apply prestressing force：It is right using thousand Jing Ding of hydraulic pressure and anchor slab 20 when mortar Final 8 degree reaches the 100% of design value
4 steel strand wires 10 of tensioning section carry out tensioning, apply prestressing force；
（7）Construction casting section 5：Steel strand wires 10 are penetrated into 19 crack of channel steel, steel strand wires 10 are then penetrated into anchor backing plate 20,
Anchor cable is finally penetrated into anchor slab 21, installation intermediate plate 22 after 5 steel strand wires 10 of section stretch will be poured；Pour construction/build plate in object basis
The concrete of formula structure 2；
（8）Shift prestressing force：Wait for that the concrete strength of construction/build plank frame 2 in object basis reaches the 100% of design value
When discharge hydraulic jack；
（9）According to（5）Step~the（8）Step is with building（Structure）It builds object basis and pours and applied successively from foundation pit bottom to foundation pit top
The tensioning section 4 of work anchor cable 1 and pour section 5.
Claims (4)
1. high gradient slope top of the slope construction/build object anchor raft foundation construction, which includes anchor cable（1）With construction/build object basis
Middle plank frame（2）, it is characterised in that anchor cable（1）It is the anchoring section by being connected with massif（3）, prestressed tensioning section is provided
（4）And pour section with what construction/build object was connected（5）Composition；Pass through anchor cable（1）With construction/build plank frame in object basis
（2）It is connected in horizontal direction, the ability that construction/build object resists horizontal loading can be improved；Pass through once grouting pipe（13）, secondary injection
Slurry pipe（14）By mortar（8）Inject anchor hole（24）Make anchor cable（1）It is anchoring section with the part that massif is securely connect（3）；It is secondary
Grouting Pipe（14）Slip casting section is provided with injected hole（15）, injected hole（15）Using preventing mortar（8）The rubber film poured into（16）
Sealing of hole；In once grouting pipe（13）, secondary grouting pipe（14）And steel strand wires（10）It is provided with centering holder on the pencil body of composition
（9）, once grouting pipe（13）And secondary grouting pipe（14）Penetrate centering holder（9）Inside, steel strand wires（10）Binding is in
Holder（9）Outside makes steel strand wires（10）, once grouting pipe（13）And secondary grouting pipe（14）It is maintained at the centre bit of anchor hole 24
It sets；Centering holder（9）It is by a diameter of 60mm~80mm, a length of 200mm~300mm steel pipes（11）With three by reinforcing bar with certain
Holder made of bending curvature（12）It constitutes；Guiding cap（7）It is welded in anchoring section（3）Steel strand wires（10）End.
2. high gradient slope top of the slope construction according to claim 1/build object anchor raft foundation construction, it is characterised in that：Tensioning section
（4）It is to show anchor cable（1）Apply prestressed part, mainly organizes as steel strand wires（10）, this section of steel strand wires（10）On the body of rod
It is coated with lubricant grease（17）, and it is enclosed with bellows on the outside（18）.
3. high gradient slope top of the slope construction according to claim 1/build object anchor raft foundation construction, it is characterised in that：Pour section
（5）It refer to anchor cable（1）Positioned at construction/build plank frame in object basis（2）In part；It is by steel strand wires to pour section（10）And anchor
Tool（6）It constitutes；Anchorage includes channel steel（19）, anchor backing plate（20）And anchor slab（21）, anchor slab（21）On be provided with steel strand
（10）Hole, be placed with intermediate plate in hole（22）, anchor backing plate（20）There is a central hole in center（23）；By two channel steels
（19）Back to setting, steel strand wires（10）Anchor backing plate is penetrated again after penetrating two 19 cracks of channel steel（20）, apply prestressing force after
Anchor slab is installed（21）, utilize intermediate plate（22）Lock prestressing force.
4. high gradient slope top of the slope construction according to claim 3/build object anchor raft foundation construction, it is characterised in that two channel steels
（19）With construction/build plank frame in object basis（2）In arrangement of reinforcement be connected by the method for welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721747565.1U CN207700208U (en) | 2017-12-15 | 2017-12-15 | High gradient slope top of the slope construction/build object anchor raft foundation construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721747565.1U CN207700208U (en) | 2017-12-15 | 2017-12-15 | High gradient slope top of the slope construction/build object anchor raft foundation construction |
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| Publication Number | Publication Date |
|---|---|
| CN207700208U true CN207700208U (en) | 2018-08-07 |
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ID=63026265
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005097A (en) * | 2017-12-15 | 2018-05-08 | 兰州理工大学 | High gradient slope top of the slope construction/build thing anchor raft foundation construction and construction method |
-
2017
- 2017-12-15 CN CN201721747565.1U patent/CN207700208U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108005097A (en) * | 2017-12-15 | 2018-05-08 | 兰州理工大学 | High gradient slope top of the slope construction/build thing anchor raft foundation construction and construction method |
| CN108005097B (en) * | 2017-12-15 | 2024-02-23 | 兰州理工大学 | High-steep slope top construction/building anchor raft foundation structure and construction method |
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