CN203593968U - Steel tube bamboo row frame for shallow hole blasting excavation bridge foundation bit construction - Google Patents
Steel tube bamboo row frame for shallow hole blasting excavation bridge foundation bit construction Download PDFInfo
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- CN203593968U CN203593968U CN201320789325.3U CN201320789325U CN203593968U CN 203593968 U CN203593968 U CN 203593968U CN 201320789325 U CN201320789325 U CN 201320789325U CN 203593968 U CN203593968 U CN 203593968U
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Abstract
The utility model discloses a steel tube bamboo row frame for shallow hole blasting excavation bridge foundation bit construction. The steel tube bamboo row frame for the shallow hole blasting excavation bridge foundation bit construction comprises a protection frame which is erected on the edge of an excavated foundation pit and is located on one side of an existing building, wherein the protection frame is laid in the vertical direction and is erected between the excavated foundation pit and the existing building. The length L of the protection frame is obtained according to the formula L=L0+2*d, wherein the d ranges from 3m to 5m, and the L0 is the excavation length of the excavated foundation pit in the laid direction of the protection frame. The protection frame comprises a vertical support and a bamboo row fixedly arranged on the front side of the vertical frame, and the bamboo row is formed by splicing a plurality of bamboo pieces laid on the same plane. The vertical support comprises a plurality of vertical steel tubes and a plurality of transverse steel tubes, and each transverse steel tube is fastened and connected with the vertical steel tubes into a whole. The distance between the bamboo row and the excavated foundation pit ranges from 2m to 5m. The steel tube bamboo row frame for the shallow hole blasting excavation bridge foundation bit construction is simple in structure, reasonable in design, low in investment cost, easy and convenient to mount and lay, good in protection effect and capable of effectively reducing influences on peripheral existing buildings by blasting stone in the foundation pit blasting excavation process.
Description
Technical field
The utility model relates to a kind of steel pipe bamboo raft frame, especially relates to a kind of shallow blasting excavation bridge foundation pit construction steel pipe bamboo raft frame.
Background technology
In recent years, along with developing rapidly of high-speed railway and metro construction, bridge deep excavation project is increasing.Base pit engineering is an ancient traditional subject in basis and underground construction, again a comprehensive geotechnical engineering difficult problem simultaneously, both relate to typical strength problem in soil mechanics, comprised again problem on deformation, also related to the INTERACTION PROBLEMS of the soil body and supporting and protection structure simultaneously.These problems roughly can be classified as two classes: the one, and the intensity of stability, stress, displacement and the supporting and protection structure of foundation ditch itself etc.; The 2nd, foundation ditch surrounding soil moves the impact that Adjacent Buildings, underground utilities etc. are caused.Base pit engineering excavation method has following two kinds: the one, and mechanical equivalent of light excavation method; The 2nd, Blasting Excavation method.Blasting procedure is divided into shallow blasting and medium-length hole blasting by the size of its hole depth.Blasting Excavation method is because construction method is simple, easy to operate, and plant equipment is single, and efficiency of construction is high, and occupied ground is little, discharges without mud, little on surrounding environment and building impact, and reliable construction quality has obtained application widely in engineering.At present, blasting procedure excavation pit is widely used for the excavation of bridge excavation of foundation pit, water conservancy and hydropower cofferdam excavation of foundation pit, nuclear power station extension project excavation of foundation pit, city underground excavation of foundation pit, urban skyscraper and utilities building, hydro-structure building foundation part etc.The bridge foundation ditch that is limestone for pier position place geology, must adopt blasting procedure to carry out excavation construction.Along with the development of national economy, adopt the engineering of blasting procedure excavation pit more and more, operating environment is increasingly sophisticated, and how adopting safer, more effective, more scientific safeguard procedures is construction difficult problems being badly in need of solution.To sum up, nowadays lack a kind of simple in structure, reasonable in design, input cost is lower and install and lay shallow blasting easy, that protection effect is good excavation bridge foundation pit construction steel pipe bamboo raft frame, it can effectively reduce the destroying infection of foundation ditch Blasting Excavation process borehole blasting slungshot to all side existing buildings.
Utility model content
Technical problem to be solved in the utility model is for above-mentioned deficiency of the prior art, a kind of shallow blasting excavation bridge foundation pit construction steel pipe bamboo raft frame is provided, it is simple in structure, reasonable in design, input cost is lower and it is easy to install and lay, protection effect good, can effectively reduce the impact of foundation ditch Blasting Excavation process borehole blasting slungshot on all side existing buildings.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of shallow blasting excavation bridge steel pipe bamboo raft frame for foundation pit construction, it is characterized in that: comprise and prop up the protective frame that stands in institute's excavation pit edge and be positioned at existing building one side, described protective frame is vertically to be stood between institute's excavation pit and described existing building to laying and its; Length L=L0+2 × the d of described protective frame, wherein d=3m～5m, L0 is for institute's excavation pit is along the excavation length on described protective frame cloth set direction; Described protective frame comprises vertical supports and the bamboo raft that is fixed on described vertical supports front side, and described bamboo raft is assembled by multiple layings bamboo chip at grade, and multiple described bamboo chips are all vertically to laying; Described vertical supports comprises that many layings vertical steel pipe and Duo Gen at grade lays horizontal steel pipe at grade, and many described horizontal steel pipes are parallel laying, and every described horizontal steel pipe is all fastenedly connected and is integrated with many described vertical steel pipes; Spacing between described bamboo raft and institute's excavation pit is 2m～5m.
Above-mentioned a kind of shallow blasting excavation bridge steel pipe bamboo raft frame for foundation pit construction, is characterized in that: described protective frame also comprises that multiple tracks props up the hound that stands in described vertical supports rear side.
Above-mentioned a kind of shallow blasting excavation bridge steel pipe bamboo raft frame for foundation pit construction, is characterized in that: described vertical supports rear is provided with a head part, and the top of described hound is propped up and withstood in described vertical supports, the bottom of described hound is propped up and withstood on a described head part; Fastening being embedded in sandy soils or rock stratum in bottom of many described vertical steel pipes, in described sandy soils, be provided with the concrete pedestal of installing for vertical steel pipe, described vertical steel pipe and described concrete pedestal are built and are integrated, in described rock stratum, have the jack for vertical steel pipe plug-in mounting, between described vertical steel pipe and the hole wall of described jack, be fastenedly connected and be integrated by mortar.
Above-mentioned a kind of shallow blasting excavation bridge steel pipe bamboo raft frame for foundation pit construction, is characterized in that: the height of described protective frame is 3m.
Above-mentioned a kind of shallow blasting excavation bridge steel pipe bamboo raft frame for foundation pit construction, is characterized in that: described head part is be embedded in underground and be the vertical steel pipe to laying, and described hound is steel pipe.
Above-mentioned a kind of shallow blasting excavation bridge steel pipe bamboo raft frame for foundation pit construction, is characterized in that: the length of multiple described bamboo chips is all identical with the height of bamboo raft, the width of described bamboo raft is 0.2m～0.3m.
Above-mentioned a kind of shallow blasting excavation bridge steel pipe bamboo raft frame for foundation pit construction, is characterized in that: described bamboo raft colligation is fixed in described vertical supports, between described horizontal steel pipe and vertical steel pipe, is all fastenedly connected by steel tube fastener.
The utility model compared with prior art has the following advantages:
1, simple in structure, reasonable in design and input cost is lower.
2, install and lay easy and protection effect good, can play the effect of anti-slungshot and warning isolation, the generation of having stopped slungshot phenomenon, has guaranteed the safety of existing building.
In sum, the utility model is simple in structure, reasonable in design, input cost is lower and it is easy to install and lay, protection effect good, can effectively reduce the impact of foundation ditch Blasting Excavation process borehole blasting slungshot on all side existing buildings.
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is use state reference map of the present utility model.
Fig. 2 is structural representation of the present utility model.
Description of reference numerals:
1-institute excavation pit; 2-1-bamboo raft; 2-2-vertical steel pipe;
2-3-laterally steel pipe; 2-4-hound; A 2-5-head part.
The specific embodiment
As shown in Figure 1 and Figure 2, the utility model comprises a protective frame that stands in institute's excavation pit 1 edge and be positioned at existing building one side, and described protective frame is vertically to laying and it stands between institute's excavation pit 1 and described existing building.Length L=L0+2 × the d of described protective frame, wherein d=3m～5m, L0 is for institute's excavation pit 1 is along the excavation length on described protective frame cloth set direction.Described protective frame comprises vertical supports and the bamboo raft 2-1 that is fixed on described vertical supports front side, and described bamboo raft 2-1 is assembled by multiple layings bamboo chip at grade, and multiple described bamboo chips are all vertically to laying; Described vertical supports comprises that many layings vertical steel pipe 2-2 and Duo Gen at grade lays horizontal steel pipe 2-3 at grade, many described horizontal steel pipe 2-3 are parallel laying, and every described horizontal steel pipe 2-3 is all fastenedly connected and is integrated with many described vertical steel pipe 2-2; Spacing between described bamboo raft 2-1 and institute's excavation pit 1 is 2m～5m.
When practice of construction, can according to specific needs, the spacing between described bamboo raft 2-1 and institute's excavation pit 1 be adjusted accordingly.
In the present embodiment, described protective frame also comprises that multiple tracks props up the hound 2-4 that stands in described vertical supports rear side.
Described vertical supports rear is provided with a head part 2-5, and the top of described hound 2-4 is propped up and withstood in described vertical supports, and the bottom of described hound 2-4 is propped up and withstood on a described head part; Fastening being embedded in sandy soils or rock stratum in bottom of many described vertical steel pipe 2-2, in described sandy soils, be provided with the concrete pedestal of installing for vertical steel pipe 2-2, described vertical steel pipe 2-2 and described concrete pedestal are built and are integrated, in described rock stratum, have the jack for vertical steel pipe 2-2 plug-in mounting, between described vertical steel pipe 2-2 and the hole wall of described jack, be fastenedly connected and be integrated by mortar.
In the present embodiment, described head part is be embedded in underground and be vertically to the steel pipe of laying.Described hound 2-4 is steel pipe.Between described horizontal steel pipe 2-3 and vertical steel pipe 2-2, be all fastenedly connected by steel tube fastener.
In the present embodiment, described vertical steel pipe 2-2 and the laterally caliber of steel pipe 2-3 are Φ 48mm.
In the present embodiment, the height of described protective frame is 3m.When practice of construction, can according to specific needs, the height of described protective frame be adjusted accordingly.
In the present embodiment, described bamboo raft 2-1 colligation is fixed in described vertical supports
When practice of construction, the length of multiple described bamboo chips is all identical with the height of bamboo raft 2-1, and the width of described bamboo raft 2-1 is 0.2m～0.3m.
In the present embodiment, the length of multiple described bamboo chips is 3m.The width of described bamboo raft 2-1 is 0.26m.
The above; it is only preferred embodiment of the present utility model; not the utility model is imposed any restrictions; every any simple modification of above embodiment being done according to the utility model technical spirit, change and equivalent structure change, and all still belong in the protection domain of technical solutions of the utility model.
Claims (7)
1. a shallow blasting excavation bridge foundation pit construction steel pipe bamboo raft frame, it is characterized in that: comprise and prop up the protective frame that stands in institute's excavation pit (1) edge and be positioned at existing building one side, described protective frame is vertically to be stood between institute's excavation pit (1) and described existing building to laying and its; Length L=L0+2 × the d of described protective frame, wherein d=3m～5m, L0 is for institute's excavation pit (1) is along the excavation length on described protective frame cloth set direction; Described protective frame comprises vertical supports and the bamboo raft (2-1) that is fixed on described vertical supports front side, and described bamboo raft (2-1) is assembled by multiple layings bamboo chip at grade, and multiple described bamboo chips are all vertically to laying; Described vertical supports comprises vertical steel pipe (2-2) at grade of many layings and many layings horizontal steel pipe (2-3) at grade, many described horizontal steel pipes (2-3) are parallel laying, and every described horizontal steel pipe (2-3) is all fastenedly connected and is integrated with many described vertical steel pipes (2-2); Spacing between described bamboo raft (2-1) and institute's excavation pit (1) is 2m～5m.
2. according to a kind of shallow blasting excavation bridge claimed in claim 1 steel pipe bamboo raft frame for foundation pit construction, it is characterized in that: described protective frame also comprises that multiple tracks props up the hound (2-4) that stands in described vertical supports rear side.
3. according to a kind of shallow blasting excavation bridge foundation pit construction steel pipe bamboo raft frame described in claim 1 or 2, it is characterized in that: described vertical supports rear is provided with a head part (2-5), the top of described hound (2-4) is propped up and is withstood in described vertical supports, and the bottom of described hound (2-4) is propped up and withstood on a described head part; Fastening being embedded in sandy soils or rock stratum in bottom of many described vertical steel pipes (2-2), in described sandy soils, be provided with the concrete pedestal of installing for vertical steel pipe (2-2), described vertical steel pipe (2-2) is built and is integrated with described concrete pedestal, in described rock stratum, have the jack for vertical steel pipe (2-2) plug-in mounting, between described vertical steel pipe (2-2) and the hole wall of described jack, be fastenedly connected and be integrated by mortar.
4. according to a kind of shallow blasting excavation bridge foundation pit construction steel pipe bamboo raft frame described in claim 1 or 2, it is characterized in that: the height of described protective frame is 3m.
5. according to a kind of shallow blasting excavation bridge foundation pit construction steel pipe bamboo raft frame described in claim 1 or 2, it is characterized in that: described head part is be embedded in underground and be the vertical steel pipe to laying, and described hound (2-4) is steel pipe.
6. according to a kind of shallow blasting excavation bridge foundation pit construction steel pipe bamboo raft frame described in claim 1 or 2, it is characterized in that: the length of multiple described bamboo chips is all identical with the height of bamboo raft (2-1), and the width of described bamboo raft (2-1) is 0.2m～0.3m.
7. according to a kind of shallow blasting excavation bridge foundation pit construction steel pipe bamboo raft frame described in claim 1 or 2, it is characterized in that: described bamboo raft (2-1) colligation is fixed in described vertical supports, between described horizontal steel pipe (2-3) and vertical steel pipe (2-2), be all fastenedly connected by steel tube fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320789325.3U CN203593968U (en) | 2013-11-30 | 2013-11-30 | Steel tube bamboo row frame for shallow hole blasting excavation bridge foundation bit construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320789325.3U CN203593968U (en) | 2013-11-30 | 2013-11-30 | Steel tube bamboo row frame for shallow hole blasting excavation bridge foundation bit construction |
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| CN203593968U true CN203593968U (en) | 2014-05-14 |
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| CN201320789325.3U Expired - Fee Related CN203593968U (en) | 2013-11-30 | 2013-11-30 | Steel tube bamboo row frame for shallow hole blasting excavation bridge foundation bit construction |
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| CN (1) | CN203593968U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105088979A (en) * | 2015-09-04 | 2015-11-25 | 贵州新联爆破工程集团有限公司 | Demolition blasting method for large bridge |
| CN105484269A (en) * | 2015-10-20 | 2016-04-13 | 中铁十六局集团北京轨道交通工程建设有限公司 | Leakage prevention construction method of foundation pit support structure under blasting condition |
| CN107255434A (en) * | 2017-07-17 | 2017-10-17 | 贵州大学 | A kind of bridge demolition side safeguard structure for that will be split |
| CN108562198A (en) * | 2018-06-26 | 2018-09-21 | 武汉科技大学 | A kind of collaboration means of defence being used for blasting flyrock and blasting vibration |
| CN110645859A (en) * | 2019-11-08 | 2020-01-03 | 中国十七冶集团有限公司 | Protection method for blasting flying stones and vibration |
-
2013
- 2013-11-30 CN CN201320789325.3U patent/CN203593968U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105088979A (en) * | 2015-09-04 | 2015-11-25 | 贵州新联爆破工程集团有限公司 | Demolition blasting method for large bridge |
| CN105088979B (en) * | 2015-09-04 | 2017-03-22 | 贵州新联爆破工程集团有限公司 | Demolition blasting method for large bridge |
| CN105484269A (en) * | 2015-10-20 | 2016-04-13 | 中铁十六局集团北京轨道交通工程建设有限公司 | Leakage prevention construction method of foundation pit support structure under blasting condition |
| CN107255434A (en) * | 2017-07-17 | 2017-10-17 | 贵州大学 | A kind of bridge demolition side safeguard structure for that will be split |
| CN108562198A (en) * | 2018-06-26 | 2018-09-21 | 武汉科技大学 | A kind of collaboration means of defence being used for blasting flyrock and blasting vibration |
| CN110645859A (en) * | 2019-11-08 | 2020-01-03 | 中国十七冶集团有限公司 | Protection method for blasting flying stones and vibration |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140514 Termination date: 20161130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |