CN105201000A - Wide foundation pit precipitation method capable of remotely monitoring - Google Patents

Wide foundation pit precipitation method capable of remotely monitoring Download PDF

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Publication number
CN105201000A
CN105201000A CN201510625586.5A CN201510625586A CN105201000A CN 105201000 A CN105201000 A CN 105201000A CN 201510625586 A CN201510625586 A CN 201510625586A CN 105201000 A CN105201000 A CN 105201000A
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CN
China
Prior art keywords
precipitation
well
wells
dewatering
foundation pit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510625586.5A
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Chinese (zh)
Inventor
赵家贵
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China MCC17 Group Co Ltd
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China MCC17 Group Co Ltd
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Publication date
Application filed by China MCC17 Group Co Ltd filed Critical China MCC17 Group Co Ltd
Priority to CN201510625586.5A priority Critical patent/CN105201000A/en
Publication of CN105201000A publication Critical patent/CN105201000A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a wide foundation pit precipitation method capable of remotely monitoring, which comprises steps: 1) a plurality of precipitation wells and observation wells are dug on a soft soil foundation, silt and silty sand are poured into the precipitation wells to forma silt layer and a silty sand layer; 2) well pipes are vertically lifted into the precipitation wells, and then medium sands and coarse sands are backfilled into the precipitation wells; 3) a submersible pump and a corrugated filter pipe are connected and are put into the precipitation wells together, and the submersible pump and a vacuum pump which is arranged outside the precipitation wells are connected into a power supply together through cables; and 4) liquid level sensors are arranged in the precipitation wells, soil settlement gages are arranged in various strata division layers, and the liquid level sensors and the soil settlement gages are respectively connected with an automatic data collecting device which is arranged in a control chamber through signal wires. Compared with the prior art, the wide foundation pit precipitation method capable of remotely monitoring achieves to automatically detect in an unattended operation situation, and brings convenience for workers during the foundation pit precipitation process.

Description

The large-scale excavation precipitation method of a kind of energy remote monitoring
Technical field
The invention belongs to foundation pit dewatering field, particularly relate to the large-scale excavation precipitation method of a kind of energy remote monitoring.
Background technology
Underground engineering construction, mainly excavation of foundation pit, in digging process, due to the existence of underground water, have severe safety hazards to excavation of foundation pit.Particularly deep big foundation pit, all first will be reduced the water level of underground water, carry out foundation pit dewatering by water pump before excavation.Require strictly to do pumping test before foundation pit dewatering and during prospecting, test and will strictly control in foundation pit dewatering process the water level of artesian water, precipitation is excessive or precipitation is not in place all may cause major hidden danger.The excessive meeting of precipitation has a strong impact on surrounding environment and causes surface settlement, and precipitation is not in place then affects excavation of foundation pit safety.Special in a large amount of ultra-deep foundation pit digging processs, foundation pit dewatering and pumping test water level, the water yield and settlement Control seem particularly important.
Summary of the invention
The object of the present invention is to provide the large-scale excavation precipitation method of a kind of energy remote monitoring, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, present invention employs following technical scheme:
A large-scale excavation precipitation method for energy remote monitoring, comprises the following steps:
1) first drilling well digs several dewatering wells and observation well at soft foundation, pours silt and flour sand in dewatering well into, forms powder soil horizon and silty sand ground;
2) well casing is vertically hung in dewatering well, then in dewatering well, backfill medium sand and coarse sand;
3) submersible pump being connected ripple chimney filter and putting into dewatering well together, finally by cable, submersible pump and the vacuum pump be arranged on outside dewatering well are accessed power supply together;
4) liquid level sensor is located in observation well, soil body settlement gauge is located at each strata division place, by liquid level sensor and soil body settlement gauge respectively by the automatic data collection equipment connection in holding wire and control room.
Preferably, the diameter of described well casing is 600mm, and the diameter of ripple chimney filter is 315mm.
Compared with prior art, beneficial effect of the present invention is as follows:
The present invention compared to existing technology, in observation well, liquid level sensor is set, at each strata division place, soil body settlement gauge is set, and liquid level sensor and soil body settlement gauge are achieved respectively by holding wire and ground automatic data collection equipment connection also can automatically detect in unattended situation, this is greatly convenient for workman brings in foundation pit dewatering process.
Accompanying drawing explanation
Fig. 1 is the structural representation of dewatering well.
Detailed description of the invention
Below in conjunction with embodiment, preferred embodiment of the present invention is described in further detail.
As shown in Figure 1, the large-scale excavation precipitation method of a kind of energy remote monitoring, comprises the following steps:
1) first drilling well digs several dewatering wells and observation well at soft foundation, pours silt and flour sand in dewatering well into, forms powder soil horizon and silty sand ground 1.
2) be that the well casing 2 of 600mm vertically hangs in dewatering well by diameter, then in dewatering well, backfill medium sand and coarse sand.
3) also put into dewatering well together at the ripple chimney filter 4 by submersible pump 3 connection diameter being 315mm, finally by cable, submersible pump 3 and the vacuum pump 5 be arranged on outside dewatering well are accessed power supply together.
4) liquid level sensor is located in observation well, soil body settlement gauge is located at each strata division place, by liquid level sensor and soil body settlement gauge respectively by the automatic data collection equipment connection in holding wire and control room.
The present invention proposes the large-scale excavation precipitation method of a kind of energy remote monitoring, the technical scheme that the present invention proposes achieves the detection of each parameter of foundation ditch and the automation of maintenance, without the need to manual measurement, and the data of monitoring are preserved automatically, and can show on the display device, reach real-time and visual, simultaneously due to automatic monitoring, data have successional feature, thus, the detection method that the present invention proposes can accomplish to monitor in real time the multi-parameter of foundation ditch, and alarm, rapid reaction, substantially increase the safety of base pit engineering operation and the accuracy of test, and can ensure that monitoring normally runs under being integrated in unattended situation.
Above embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.

Claims (2)

1. a large-scale excavation precipitation method for energy remote monitoring, is characterized in that, comprise the following steps:
First drilling well digs several dewatering wells and observation well at soft foundation, pours silt and flour sand in dewatering well into, forms powder soil horizon and silty sand ground (1);
Well casing (2) is vertically hung in dewatering well, then in dewatering well, backfills medium sand and coarse sand;
Submersible pump (3) being connected ripple chimney filter (4) and putting into dewatering well together, finally by cable, submersible pump (3) and the vacuum pump (5) be arranged on outside dewatering well are accessed power supply together;
Liquid level sensor is located in observation well, soil body settlement gauge is located at each strata division place, by liquid level sensor and soil body settlement gauge respectively by the automatic data collection equipment connection in holding wire and control room.
2. the large-scale excavation precipitation method of energy according to claim 1 remote monitoring, it is characterized in that, the diameter of described well casing is 600mm, and the diameter of ripple chimney filter (4) is 315mm.
CN201510625586.5A 2015-09-28 2015-09-28 Wide foundation pit precipitation method capable of remotely monitoring Pending CN105201000A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510625586.5A CN105201000A (en) 2015-09-28 2015-09-28 Wide foundation pit precipitation method capable of remotely monitoring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510625586.5A CN105201000A (en) 2015-09-28 2015-09-28 Wide foundation pit precipitation method capable of remotely monitoring

Publications (1)

Publication Number Publication Date
CN105201000A true CN105201000A (en) 2015-12-30

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CN201510625586.5A Pending CN105201000A (en) 2015-09-28 2015-09-28 Wide foundation pit precipitation method capable of remotely monitoring

Country Status (1)

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CN (1) CN105201000A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106245662A (en) * 2016-09-07 2016-12-21 上海隧道工程有限公司 Monitoring system and monitoring method thereof for foundation ditch well-points dewatering
CN110644514A (en) * 2019-08-22 2020-01-03 中国十七冶集团有限公司 Drainage method for large box type foundation and post-cast strip
CN110872837A (en) * 2019-11-29 2020-03-10 深圳宏业基岩土科技股份有限公司 Construction method for transforming empty pile section of rotary excavating cast-in-place pile into dewatering well
CN112627213A (en) * 2020-12-17 2021-04-09 河南大学 Water seepage source diagnosis and flow guide device for foundation pit without waterproof curtain

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1182355B1 (en) * 2000-08-23 2003-10-22 Groupe Ress Sàrl Apparatus for deep ground drainage
CN101294393A (en) * 2007-04-29 2008-10-29 上海市第七建筑有限公司 Construction method with dewatering water well equipped outside of foundation pit
CN102051886A (en) * 2011-01-24 2011-05-11 惠州市水电建筑工程有限公司 Light well point drainage construction technology
CN203066091U (en) * 2012-11-20 2013-07-17 上海长凯岩土工程有限公司 Monitoring system of foundation pit dewatering and pumping test
CN104018511A (en) * 2014-03-26 2014-09-03 福州市规划设计研究院 Construction process of underground construction drainage anti-floating device
CN104032760A (en) * 2013-03-05 2014-09-10 李孝虎 Foundation pit construction tube well dewatering method
CN104831762A (en) * 2015-04-30 2015-08-12 宁波大学 Dynamic monitoring system and monitoring method of deep foundation pit confined water drawdown

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1182355B1 (en) * 2000-08-23 2003-10-22 Groupe Ress Sàrl Apparatus for deep ground drainage
CN101294393A (en) * 2007-04-29 2008-10-29 上海市第七建筑有限公司 Construction method with dewatering water well equipped outside of foundation pit
CN102051886A (en) * 2011-01-24 2011-05-11 惠州市水电建筑工程有限公司 Light well point drainage construction technology
CN203066091U (en) * 2012-11-20 2013-07-17 上海长凯岩土工程有限公司 Monitoring system of foundation pit dewatering and pumping test
CN104032760A (en) * 2013-03-05 2014-09-10 李孝虎 Foundation pit construction tube well dewatering method
CN104018511A (en) * 2014-03-26 2014-09-03 福州市规划设计研究院 Construction process of underground construction drainage anti-floating device
CN104831762A (en) * 2015-04-30 2015-08-12 宁波大学 Dynamic monitoring system and monitoring method of deep foundation pit confined water drawdown

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106245662A (en) * 2016-09-07 2016-12-21 上海隧道工程有限公司 Monitoring system and monitoring method thereof for foundation ditch well-points dewatering
CN110644514A (en) * 2019-08-22 2020-01-03 中国十七冶集团有限公司 Drainage method for large box type foundation and post-cast strip
CN110872837A (en) * 2019-11-29 2020-03-10 深圳宏业基岩土科技股份有限公司 Construction method for transforming empty pile section of rotary excavating cast-in-place pile into dewatering well
CN112627213A (en) * 2020-12-17 2021-04-09 河南大学 Water seepage source diagnosis and flow guide device for foundation pit without waterproof curtain

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Application publication date: 20151230

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