CN107217674A - Cubic meter of stone foundation ditch enters rock non-explosive excavation construction method - Google Patents
Cubic meter of stone foundation ditch enters rock non-explosive excavation construction method Download PDFInfo
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- CN107217674A CN107217674A CN201710324303.2A CN201710324303A CN107217674A CN 107217674 A CN107217674 A CN 107217674A CN 201710324303 A CN201710324303 A CN 201710324303A CN 107217674 A CN107217674 A CN 107217674A
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- cutting
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- foundation ditch
- cut
- cubic meter
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D17/00—Excavations; Bordering of excavations; Making embankments
- E02D17/02—Foundation pits
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- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
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Abstract
The invention belongs to the realm of building construction, larger is influenceed on geology around in order to solve conventional blast construction, the problem of ripe city of closeness greatly can not be applied to, and then enter rock non-explosive excavation construction method there is provided a kind of cubic meter of stone foundation ditch, using water conservancy diversion+circular saw cutting excavating load construction, rock stratum water is dredged into low-lying place first and carries out pump drainage, then basement rock is cut using circular saw, crushing and clearing finally is carried out to the basement rock after cutting, the non-explosive excavation construction cheated into batholith is realized, the propulsion cutting mode of cutting is segmented during cutting using subregion.Of the invention low with labor intensity using " water conservancy diversion+illegally occupy cutting excavating load " progress rock stratum excavation, effect on environment is small, and the advantages such as rule are excavated in operation, while influence of the rock stratum water to excavation can be controlled effectively.
Description
Technical field
The invention belongs to the realm of building construction, and in particular to a kind of cubic meter of stone base suitable for big, the ripe residential block of closeness
Cheat into rock non-explosive excavation construction method.
Background technology
For the building in mountain construction, structures, being arranged on its basis at lithostratigraphy, generally using blasting technology more
Foundation excavation is carried out, but for flow of the people is big, maturation zone people area, the potential safety hazard of blast working mode is big, while can be to surrounding
Geology affects, and causes blast working mode to there is limitation.
The content of the invention
The present invention influences larger to solve conventional blast construction on geology around, it is impossible to apply to the big maturation of closeness
The problem of city, and then enter rock non-explosive excavation construction method there is provided a kind of cubic meter of stone foundation ditch.
The present invention is adopted the following technical scheme that：
A kind of cubic meter of stone foundation ditch enters rock non-explosive excavation construction method, using water conservancy diversion+circular saw cutting excavating load construction, first by rock
Layer water dredges low-lying place and carries out pump drainage, and then basement rock is cut using circular saw, and finally the basement rock after cutting is carried out
Crushing and clearing, realizes the non-explosive excavation construction cheated into batholith.
Need that the rock stratum of excavation area make an on-the-spot survey to examine before construction, elevation control pilot measurement is excavated into base to region, ejection is excavated
Control line is cheated, and clears up the loose earth's surface debris of excavation region surface, specific work progress is as follows：
Rock stratum water conservancy diversion：Drainage ditch is excavated in the cutting operation face surveyed in bullet in advance at the position of foundation ditch edge, and in low land
The catch pit being connected with drainage ditch is set at gesture, slush pump is installed, water-pumping/draining is carried out；
Basement rock is cut：Disk is set to saw track along margin of foundation pit, the cutting operation face surveyed using circular saw along bullet is cut；
Basement rock crushing and clearing：Crushing and clearing is carried out to the bulk basement rock after cutting separation using pick machine, the basement rock after crushing is straight
Footpath is not more than 50cm, convenient transhipment.
The propulsion cutting mode of cutting is segmented during cutting using subregion, foundation ditch cut surface is divided into respect to foundation ditch center some
Symmetrical cutting area, each cutting area unit is uniformly divided into some cut length again；Carried out immediately after the completion of one cut length cutting
Crushing and clearing, then next cut length is cut, until cutting completes a cutting area unit, then proceed to cut symmetrical cutting area
Unit.The stability being cut with beneficial to foundation ditch is maintained in digging process is segmented using subregion, is prevented because geology particularity occurs
The problem of unbalance loading is caved in.
The cutting segment length is 10-15 meters, and the main specification according to selected circular saw of the Cutting Length is determined, makes cutting
The basement rock that segment unit is produced just is beneficial to single and transported, meanwhile, it is comprehensive that cutter unit should combine the factors such as the service life of circular saw
Close and determine, facilitate cut length to be just beneficial to check when switching, repair, change circular saw.
The diameter of the circular saw bit is not less than 1 meter, and maximum depth of cut control is between 40--50cm, depth of cut root
According to circular saw diameter and consider the factors such as power of motor determine.
Cutting surface evenness after cutting is ± 5cm, should then be modified cutting more than the flatness, it is to avoid excessive is recessed
Fall into or projection influence subsequent construction.
The circular saw edge is provided with the baffle plate for preventing that stone flour from splashing, and prevents a large amount of stone flours and splashes, airborne dust occurs,
Ensure that stone flour can carry out precipitation process in small area.
The present invention has the advantages that：
1st, the mode that the present invention is combined using water conservancy diversion+disk saw cut substitutes traditional blast working, when solving explosion
Potential safety hazard, has fewer environmental impacts；
2nd, using disk saw cut, with the smooth well-behaved advantage of operation excavation face, the influence to geology around can effectively be reduced；
3rd, cut before carried out water conservancy diversion processing, control influence of the rock stratum water to follow-up excavation construction, be conducive to quickening construct into
Degree；
4th, water conservancy diversion water can be used for the stone flour that processing cutting is produced, and had both realized effective utilization to rock stratum water, and had saved water resource,
The problem of suiting measures to local conditions to solve stone flour airborne dust simultaneously.
Brief description of the drawings
Fig. 1 is rectangle foundation pit subregion stepwise schematic views figure；
In figure：S1, S2 ... are cutting area unit, and L1, L2 ... are cut length.
Embodiment
The present invention is directed to the building foundation pit construction at ripe residential block, and the scheme tentatively drafted has three kinds：
Scheme one：Using hydraulic splitting machine
1）Pick crusher machine is used first, digs out free face；
2）Then punched using cutting drill, insert the jacking mechanism of hydraulic splitting machine；
3）Start hydraulic splitting machine jacking, free face side cubic meter of stone capping will be leaned on；
4）Last pick machine coordinates broken, cubic meter of stone cleaning.
Scheme two：Using disk saw cut
1）Levelling of the land in foundation ditch is carried out first；
2）Circular saw track installation；
3）Disk saw cut；
4）Pick crusher machine is cleared up.
Scheme three：It is broken using swelling agent
1）Free face is carried out first to crush；
2）Down-the-hole drill jewel hole powder charge；
3）Heating expansion is broken, the cleaning of pick machine addi-tional crusher.
It is final to determine, using " water conservancy diversion+illegally occupy cutting excavating load ", rock stratum water to be dredged into low-lying place first and carries out pump drainage, so
Basement rock is cut using circular saw afterwards, crushing and clearing finally is carried out to the basement rock after cutting, is realized into the non-quick-fried of batholith hole
Break excavation construction.
1st, technological principle
By excavating drainage ditch at the construction field (site), setting the measure of catch pit in physical features lower, rock stratum water is carried out effectively to dredge
Lead, illegally occupied using major diameter along margin of foundation pit and set disk to saw track progress foundation ditch subregion segmentation cutting, larger foundation ditch is split
Into some fritters, the excavation construction cheated into batholith is realized in the rock stratum for recycling pick crusher machine to separate.
2nd, technological process
Foundation ditch levelling of the land → guiding gutter and catch pit construction → disk saw cut → basement rock crushing and clearing.
3rd, specific practice
3.1st, foundation ditch levelling of the land
The rock stratum of excavation area is made an on-the-spot survey, by elevation control pilot measurement to region is excavated, ejects excavation pit control line, will excavate
The loose earth's surface debris of region surface is cleaned out.
3.2nd, guiding gutter and catch pit construction
For excavating rock stratum, generally there is rock stratum water system, to ensure disk saw cut cubic meter of stone job safety, leaned in cutting operation face
Setting drainage ditch is excavated in nearly foundation ditch edge position in advance, and sets catch pit in physical features lower position, installs slush pump, enters
Row water-pumping/draining（When lift is too high, and slush pump can not meet use requirement, welded steel plate sedimentation basin is used in foundation ditch, mud is used
Foundation ditch internal water accumulation is evacuated to sedimentation basin by pump, is after precipitation discharged water using clarified water pump）.
The timely pump drainage of ponding water conservancy diversion：
In disk saw cut cubic meter of stone operation, the smooth pump drainage of ponding is most important.Consider for security standpoint, cutting mechanics exist
Underwater work, easily causes shell dew electricity, personnel cause security incident to less important work；Consider for mechanical protection angle,
Cutting mechanics easily cause short circuit in underwater work, damage motor, and not only cost is raised, and the duration can not also ensure.
In order to ensure cutting mechanics normal construction, cutting operation face（Close to building enclosure marginal position）Gutter is set,
And catch pit is set in horizontal relative elevation lower position, and the slush pump that lift is cutting depth is set, carry out water-pumping/draining（Example
Such as, certain project excavation of foundation pit depth is 34m, and plan sets lift 34m slush pumps）.But find more than lift 15m in market survey
Slush pump it is less, therefore can discuss use sewage pump or clarified water pump, but sewage pump machinery is larger, is moved in foundation ditch, lift compared with
Hardly possible operation；Foundation ditch inner clip mud is more, and clarified water pump can not be applicable.
Finally, welded steel plate sedimentation basin is used in foundation ditch, and foundation ditch internal water accumulation is evacuated to precipitation from short lift slush pump
Chi Hou, is discharged water using clarified water pump through being deposited in.
Checking on effect：Checked through scene, the scope of operation is without obvious ponding.
3.3rd, basement rock is cut
Circular saw track installation is carried out, from diameter 1m or so circular saw bit, it is considered to which rock strength grade is different in foundation ditch, most
Between big depth of cut control 40--50cm.Cutting is completed after one section, is manually cleared up the remaining stone flour of the scope of operation, it is ensured that cutting is made
Industry face is smooth.
Stone flour processing：
In cutting process, whether stone flour is cleared up in time, will directly affect the efficiency of the cutting lower floor cubic meter of stone.
First, baffle plate is set at circular saw edge, prevents most of stone flour from splashing, increase cleaning difficulty.
Secondly, stone flour is cleared up to catch pit using digging machine, will be unified after stone flour pump drainage to sedimentation basin using slush pump
Cleaning.
Finally, manually the remaining stone flour of the scope of operation is cleared up, it is ensured that cutting operation face is smooth.
Checking on effect：Checked through scene, the scope of operation can be smoothed out cutting operation without accumulation stone flour.
Depth of cut is determined：
Circular saw depth of cut directly affect rock excavation whether the key that can be smoothly completed, depth of cut is big, mechanical load
Greatly, electric motor short circuit, damage are easily caused；Depth of cut is small, cuts every time relatively thin, and earthwork is less, and the duration can not ensure.Technology
Personnel spy sits on how each depth of cut controls for this problem.
First, it is considered to country rock grade in foundation ditch, from diameter 1m circular saw bit, maximum depth of cut is 50cm.But warp
Field observation is crossed, running at full capacity device efficiency is relatively low and larger to motor damage, the cutting loss time caused is longer.Together
When measurement cutting abolish after rock flatness be ± 5cm, so the average depth of cut of setting is by 45cm controls.
Secondly, to avoid workmen from blindly robbing work or misoperation, station by scene should be strengthened, and workmen is carried out
Education,
Checking on effect：Check that the average 45cm of every layer of depth of cut ensure that mechanical continuous operation, not occur short circuit through scene
The phenomenons such as shutdown.
3.4th, basement rock crushing and clearing
In cutting process, stone flour must be cleared up synchronously in time, by setting baffle plate at circular saw edge, prevent stone flour from splashing.
Basement rock after cutting is cleared up using pick crusher machine, entrucking outward transport.Stone flour is cleared up to catch pit using digging machine, utilizes slush pump
By unified cleaning after stone flour pump drainage to sedimentation basin.
By taking certain rectangle foundation pit shown in Fig. 1 as an example, be classified as six cutting area units, cutting sequence be followed successively by S1,
S2, S3, S4, S5, S6, each cutting area unit are further divided into several sections of cuttings of L1, L2, L3, L4 and completed, and continuous 9 days to stone
Excavated volume is counted daily for side, is as a result found that the averagely daily excavated volume of the cubic meter of stone can reach 358m3, is met what is formulated before construction
Target.
The present invention carries out rock stratum excavation using " water conservancy diversion+illegally occupy cutting excavating load " has labor intensity low, effect on environment
Small, the advantages such as rule are excavated in operation, while influence of the rock stratum water to excavation can be controlled effectively.
Claims (7)
1. a kind of cubic meter of stone foundation ditch enters rock non-explosive excavation construction method, it is characterised in that：Using water conservancy diversion+circular saw cutting excavating load
Construction, is dredged low-lying place by rock stratum water first and carries out pump drainage, then basement rock cut using circular saw, finally to cutting
Basement rock afterwards carries out crushing and clearing, realizes the non-explosive excavation construction cheated into batholith.
2. cubic meter of stone foundation ditch according to claim 1 enters rock non-explosive excavation construction method, it is characterised in that needed before construction pair
The rock stratum of excavation area make an on-the-spot survey examining, and by elevation control pilot measurement to region is excavated, ejects excavation pit control line, and clear up excavation
The loose earth's surface debris of region surface, specific work progress is as follows：
Rock stratum water conservancy diversion：Drainage ditch is excavated in the cutting operation face surveyed in bullet in advance at the position of foundation ditch edge, and in low land
The catch pit being connected with drainage ditch is set at gesture, slush pump is installed, water-pumping/draining is carried out；
Basement rock is cut：Disk is set to saw track along margin of foundation pit, the cutting operation face surveyed using circular saw along bullet is cut；
Basement rock crushing and clearing：Crushing and clearing is carried out to the bulk basement rock after cutting separation using pick machine, the diameter after crushing is not
More than 50cm.
3. cubic meter of stone foundation ditch according to claim 2 enters rock non-explosive excavation construction method, it is characterised in that：Adopted during cutting
The propulsion cutting mode of cutting is segmented with subregion, foundation ditch cut surface is divided into some symmetrical cutting areas with respect to foundation ditch center, often
Individual cutting area unit is uniformly divided into some cut length again；Crushing and clearing is carried out immediately after the completion of one cut length cutting, then is cut
Next cut length, until cutting completes a cutting area unit, then proceedes to cut symmetrical cutting area unit.
4. cubic meter of stone foundation ditch according to claim 3 enters rock non-explosive excavation construction method, it is characterised in that：The cut length
Length is 10-15 meters.
5. cubic meter of stone foundation ditch according to claim 4 enters rock non-explosive excavation construction method, it is characterised in that：The circular saw
The diameter of piece is not less than 1 meter, and maximum depth of cut control is between 40--50cm.
6. cubic meter of stone foundation ditch according to claim 5 enters rock non-explosive excavation construction method, it is characterised in that：Cutting after cutting
Face flatness is ± 5cm.
7. cubic meter of stone foundation ditch according to claim 6 enters rock non-explosive excavation construction method, it is characterised in that：The circular saw
Edge is provided with the baffle plate for preventing that stone flour from splashing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710324303.2A CN107217674A (en) | 2017-05-10 | 2017-05-10 | Cubic meter of stone foundation ditch enters rock non-explosive excavation construction method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710324303.2A CN107217674A (en) | 2017-05-10 | 2017-05-10 | Cubic meter of stone foundation ditch enters rock non-explosive excavation construction method |
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| Publication Number | Publication Date |
|---|---|
| CN107217674A true CN107217674A (en) | 2017-09-29 |
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ID=59944102
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710324303.2A Pending CN107217674A (en) | 2017-05-10 | 2017-05-10 | Cubic meter of stone foundation ditch enters rock non-explosive excavation construction method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119191A (en) * | 2019-12-18 | 2020-05-08 | 中建三局基础设施建设投资有限公司 | Rock foundation pit guide hole type non-blasting excavation method |
| CN113279422A (en) * | 2021-06-10 | 2021-08-20 | 中庆建设有限责任公司 | Excavation method suitable for hard rock stratum enlarged foundation |
| CN113802516A (en) * | 2021-08-16 | 2021-12-17 | 江苏龙源振华海洋工程有限公司 | Reef position processing method |
| CN115787768A (en) * | 2022-12-16 | 2023-03-14 | 中建海峡建设发展有限公司 | Method for excavating harder rock in ultra-narrow and ultra-deep foundation pit |
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| CN203729363U (en) * | 2013-11-13 | 2014-07-23 | 牛发启 | Strip-shaped deep and narrow foundation excavating equipment |
| CN104060620A (en) * | 2013-03-20 | 2014-09-24 | 中国二十冶集团有限公司 | Karst fissure water control method for deep foundation pit |
| CN104314574A (en) * | 2014-10-13 | 2015-01-28 | 福州市规划设计研究院 | Hard rock tunnel non-blasting digging blocking method and construction method |
| CN104775437A (en) * | 2015-02-15 | 2015-07-15 | 福建省闽南建筑工程有限公司 | Cutting type constructing method for excavating rock foundation pits in construction site |
| AU2014262181A1 (en) * | 2014-11-06 | 2016-05-26 | VHS IP Pty Ltd | Process for exposing underground utilities |
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Patent Citations (5)
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| CN104060620A (en) * | 2013-03-20 | 2014-09-24 | 中国二十冶集团有限公司 | Karst fissure water control method for deep foundation pit |
| CN203729363U (en) * | 2013-11-13 | 2014-07-23 | 牛发启 | Strip-shaped deep and narrow foundation excavating equipment |
| CN104314574A (en) * | 2014-10-13 | 2015-01-28 | 福州市规划设计研究院 | Hard rock tunnel non-blasting digging blocking method and construction method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111119191A (en) * | 2019-12-18 | 2020-05-08 | 中建三局基础设施建设投资有限公司 | Rock foundation pit guide hole type non-blasting excavation method |
| CN113279422A (en) * | 2021-06-10 | 2021-08-20 | 中庆建设有限责任公司 | Excavation method suitable for hard rock stratum enlarged foundation |
| CN113802516A (en) * | 2021-08-16 | 2021-12-17 | 江苏龙源振华海洋工程有限公司 | Reef position processing method |
| CN115787768A (en) * | 2022-12-16 | 2023-03-14 | 中建海峡建设发展有限公司 | Method for excavating harder rock in ultra-narrow and ultra-deep foundation pit |
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| CB03 | Change of inventor or designer information |
Inventor after: Wei Zhi Inventor after: Liu Hui Inventor after: Sun Dongyan Inventor after: Wu Xiaobing Inventor after: Gong Xiaoli Inventor after: Chang Yanni Inventor after: Mu Jinfeng Inventor after: Wang Xudong Inventor after: Gao Zhiqi Inventor before: Wei Zhi Inventor before: Liu Hui Inventor before: Han Jinfeng Inventor before: Wu Xiaobing Inventor before: Gong Xiaoli Inventor before: Chang Yanni Inventor before: Mu Jinfeng Inventor before: Wang Xudong Inventor before: Gao Zhiqi |
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Application publication date: 20170929 |
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