CN103306255B - Box-type power penetrometer without feeler lever and probing method thereof - Google Patents
Box-type power penetrometer without feeler lever and probing method thereof Download PDFInfo
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- CN103306255B CN103306255B CN201310271447.8A CN201310271447A CN103306255B CN 103306255 B CN103306255 B CN 103306255B CN 201310271447 A CN201310271447 A CN 201310271447A CN 103306255 B CN103306255 B CN 103306255B
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Abstract
The invention discloses a box-type power penetrometer without a feeler lever and probing method thereof. The penetrometer comprises a probe head, a closed hammering chamber, a supporting rod, a down-pass steel wire and the like, wherein the probe head is connected with the closed hammering chamber; the upper part of the closed hammering chamber is connected with the down-pass steel wire and the supporting rod respectively; the supporting rod comprises an upper part with two through holes and a lower guide rod; the closed hammering chamber comprises a wall supporting gas bag, hammer lifting steel wires, a closed box and an energy hammer; the hammer lifting steel wires penetrate the two through holes and get into the closed box to be connected with the energy hammer; the lower guide rod stretches into the closed box, penetrates the energy hammer and finally is connected with the probe head; a gas pipeline is arranged on the wall supporting gas bag; scales are arranged on the supporting rod. According to the penetrometer, the closed hammering chamber for providing stable hammering energy is arranged at the position close to the upper part of the probe head, so that the purpose that the probe head travels in the soil horizon is realized, the feeler lever is not required, as a result, the problem that the practical converted hammering energy is unstable during dropping the hammer, brought by the bending of an overlong feeler lever is solved. The accuracy of dynamic probing is improved, and the probing depth is increased.
Description
Technical field
The present invention relates to the device of a kind of civil engineering geotechnical investigation field for dynamic sounding.
Background technology
Current dynamic sounding equipment is made up of five major parts such as guide rod, punching hammer, pallet, feeler lever, probes.During test, utilize punching to hammer into shape and produce certain hammering energy, circular cone probe is squeezed in soil, differentiates the engineering properties of soil according to the complexity squeezed in soil (blow counts of penetration resistance or injection certain depth).But traditional circular cone dynamic penetrometer is when larger degree of depth feeler inspection, and because feeler lever is long, inevitably produce feeler lever and bend, consequent hammering is eccentric has a strong impact on feeler inspection result accuracy with guide rod friction.
Summary of the invention
Cause injection distortion, the defect that the feeler inspection degree of depth is limited to overcome bending because feeler lever is long of existing dynamic sounding method existence, the present invention proposes a kind of without the box dynamic penetrometer of feeler lever and feeler inspection method thereof.This device, by arranging the airtight hammering room having and provide stable hammering energy above next-door neighbour's probe, realizes probe and advances in soil layer, without the need to feeler lever, therefore, it is possible to overcome long feeler lever to bend the actual hammering energy instability problem transformed that drops hammer brought at every turn.Improve the accuracy of dynamic sounding, and the feeler inspection degree of depth can be increased.
A kind of without the box dynamic penetrometer of feeler lever, it comprises probe, airtight hammering room, support bar, transfers steel wire etc., and described probe, airtight hammering room are connected, described top, airtight hammering room respectively with transfer steel wire and be connected with support bar; Described support bar comprises the upper and lower guide rod being provided with two through holes; Described airtight hammering room comprises support wall air bag, carries hammer steel wire, closed box, energy hammer, and described hammer steel wire of carrying enters closed box through two described through holes and hammers into shape with energy and be connected; Described bottom guide rod stretches into closed box, is finally connected with described probe through energy hammer.Described support wall air bag is provided with gas pipeline, and described support bar is provided with scale.
A kind of feeler inspection method without the box dynamic penetrometer of feeler lever: the feeler inspection hole by transferring steel wire airtight hammering room being transferred to set depth, put surely until closed box, gas pipeline is to support wall airbag aeration, and support wall air bag props up hole wall and plays supporting & stablizing effect to airtight hammering room; Carry hammer steel wire by artificial or utensil and realize the lifting of energy hammer, repeat hammering, probe can be made downwards progressively to advance, and then complete a feeler inspection operation, the feeler inspection degree of depth is read by the scale on support bar; After feeler inspection operation completes, gas in release support wall air bag, lift is transferred steel wire and cone penetrometer is proposed earth's surface.
The invention has the beneficial effects as follows: do not need to use feeler lever, overcome long bending (the causing eccentric hammering) impact on feeler inspection precision of feeler lever.Also reduce the associated friction error that may exist simultaneously.Whole device is light easy-to-use, and the feeler inspection degree of depth can be made to increase.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further described.
Accompanying drawing is the vertical section structure schematic diagram without the box dynamic penetrometer of feeler lever.
In figure, support bar 1, transfer steel wire 2, gas pipeline 3, support wall air bag 4, carry hammer steel wire 5, bottom guide rod 6, closed box 7, energy hammer 8, probe 9.
Detailed description of the invention
In the drawings, the top of next-door neighbour's probe 9 makes an airtight hammering case, and airtight hammering case is made up of energy hammer 8, closed box 7, guide rod 6 and support wall air bag 4.Energy is hammered 8 peen systems into shape and is carried hammer steel wire 5.Airtight hammering upper box part is connected to transfers steel wire 2 and support bar 1.By transferring steel wire, airtight hammering case can be transferred to designated depth (this degree of depth bored in advance dig complete) by us.Put surely until closed box, gas pipeline 3 is inflated to support wall air bag 4, and support wall air bag 4 props up hole wall and plays supporting & stablizing effect to airtight hammering case, prevents the inclination of closed box during feeler inspection.Arrive carry hammer steel wire 5 in support bar top through porose support bar 1, on support bar top, promoted by artificial or relevant appliance, realize energy hammer 8 and promote, the similar vehicle brake cable of its principle.Repeat hammering, probe 9 can be made downwards progressively to advance, and then complete whole feeler inspection process, the feeler inspection degree of depth is read by the scale on support bar 1.After feeler inspection operation completes, gas in release support wall air bag 4, lift is transferred steel wire 2 and device is proposed earth's surface.Because repeat hammering and friction, therefore energy hammer 8 and probe 9 material must intensity high, rub resistance, corrosion-resistant, not yielding.As far as possible smooth between guide rod 6 and energy hammer 8, reduce friction or friction constant.Compared to transferring steel wire 2, carry hammer steel wire 5 except requiring high strength, also require that pliability is more soft better, good pliability also can reduce the error between itself and support bar 1.Closed box 7 requires to have rub resistance, corrosion resistant characteristic, because the Rock And Soil character sometimes contacted with it is poor.
Claims (3)
1. one kind without the box dynamic penetrometer of feeler lever, it is characterized in that: it comprises probe (9), airtight hammering room, support bar (1), transfers steel wire (2), described probe (9), airtight hammering room are connected, described top, airtight hammering room respectively with transfer steel wire (2) and be connected with support bar (1);
Described support bar (1) comprises bottom guide rod (6) and is provided with the top of two through holes;
Described airtight hammering room comprises support wall air bag (4), carries and hammer steel wire (5), closed box (7), energy hammer (8) into shape; Described hammer steel wire (5) of carrying enters closed box (7) through described two through holes and hammers (8) into shape with energy and be connected; Described bottom guide rod (6) stretches into closed box (7), is finally connected with described probe (9) through energy hammer (8).
2. according to claim 1 without the box dynamic penetrometer of feeler lever, it is characterized in that: described support wall air bag (4) is provided with gas pipeline (3), described support bar (1) is provided with scale.
3. the feeler inspection method without the box dynamic penetrometer of feeler lever according to claim 2, is characterized in that:
By transferring steel wire (2) airtight hammering room transferred to the feeler inspection hole of set depth, until closed box (7) put steady after, gas pipeline (3) is to support wall air bag (4) inflation, and support wall air bag (4) props up hole wall and plays supporting & stablizing effect to airtight hammering room; Carry hammer steel wire (5) by artificial or utensil and realize energy hammer (8) lifting, repeat hammering, probe (9) can be made downwards progressively to advance, and then complete a feeler inspection operation, the feeler inspection degree of depth is read by the scale on support bar (1); After feeler inspection operation completes, release support wall air bag (4) interior gas, lift is transferred steel wire (2) and cone penetrometer is proposed earth's surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310271447.8A CN103306255B (en) | 2013-07-01 | 2013-07-01 | Box-type power penetrometer without feeler lever and probing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310271447.8A CN103306255B (en) | 2013-07-01 | 2013-07-01 | Box-type power penetrometer without feeler lever and probing method thereof |
Publications (2)
| Publication Number | Publication Date |
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| CN103306255A CN103306255A (en) | 2013-09-18 |
| CN103306255B true CN103306255B (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310271447.8A Active CN103306255B (en) | 2013-07-01 | 2013-07-01 | Box-type power penetrometer without feeler lever and probing method thereof |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103924571A (en) * | 2014-04-18 | 2014-07-16 | 天津市市政工程设计研究院 | Dynamic penetration instrument |
| CN107190721A (en) * | 2017-07-13 | 2017-09-22 | 福建省永正工程质量检测有限公司 | A kind of dynamic sounding method for replacing sand replacement method to detect compactness with foundation bearing capacity |
| CN113959874B (en) * | 2021-10-22 | 2022-06-28 | 贵州正业工程技术投资有限公司 | Dynamic sounding penetration resistance calculation method based on hammering energy measurement |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2057428U (en) * | 1989-09-27 | 1990-05-23 | 李志强 | Portable dual-purpose sounding and ramming machine |
| FR2670582B1 (en) * | 1990-12-12 | 1994-08-26 | Castagner Bernard | PYROTECHNIC DYNAMIC PENETROMETER. |
| CN1243900A (en) * | 1998-08-03 | 2000-02-09 | 杨祖文 | Light contact-inspection tester for test slot of foundation |
| FR2817344B1 (en) * | 2000-11-28 | 2003-05-09 | Sol Solution | DYNAMIC PENETROMETER WITH VARIABLE ENERGY |
| US20070277598A1 (en) * | 2006-06-06 | 2007-12-06 | Zacny Krzysztof A | Penetrometer with electronically-controlled hammering module |
| CN201512778U (en) * | 2009-09-22 | 2010-06-23 | 中冶实久建设有限公司 | Stand of heavy-duty/extra-heavy-duty dynamic penetrometer |
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- 2013-07-01 CN CN201310271447.8A patent/CN103306255B/en active Active
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