阅读说明：本技术 分流式地下连续墙冷凝管装置及施工方法 (Shunt diaphram wall condenses pipe device and construction method ) 是由 丁智 杭致远 张霄 于 2019-08-05 设计创作，主要内容包括：一种分流式地下连续墙冷凝管装置,包括埋设于地下连续墙中的冷凝管和设置在冷凝管旁用于检测混凝土温度的多个温度传感器,地下连续墙表面设多个备用水口,通过三通接头与冷凝管相连；所述冷凝管组件的首尾端分别设有进水口和出水口。以及提供一种分流式地下连续墙冷凝管装置的施工方法。本发明有效地解决大型地下连续墙产生的水化热问题,使地下连续墙强度达到设计要求,保证墙体质量。(A kind of shunt diaphram wall condensation pipe device, including the condenser pipe being embedded in diaphram wall and it is arranged in by condenser pipe for detecting multiple temperature sensors of concrete temperature, diaphram wall surface sets multiple spare mouths of a river, is connected by three-way connection with condenser pipe；The two ends of the condensation tube assembly are respectively equipped with inlet and outlet.And provide a kind of construction method of shunt diaphram wall condensation pipe device.The present invention efficiently solves the aquation heat problem of Large Underground diaphragm wall generation, and diaphram wall intensity is made to reach design requirement, guarantees wall quality.)

1. a kind of shunt diaphram wall condenses pipe device, which is characterized in that described device includes being embedded in diaphram wall In condenser pipe and be arranged in by condenser pipe for detecting multiple temperature sensors of concrete temperature, diaphram wall surface is set Multiple spare mouths of a river are connected by three-way connection with condenser pipe；It is described condensation tube assembly two ends be respectively equipped with water inlet and Water outlet.

2. shunt diaphram wall as described in claim 1 condenses pipe device, which is characterized in that the temperature sensor packet Water inlet temperature sensor and medium temperature sensor are included, the water inlet temperature sensor is for collecting water inlet condenser pipe week The temperature variation data of concrete is enclosed, medium temperature sensor is used to collect the temperature change number of each condenser pipe surrounding concrete According to the water inlet temperature sensor and medium temperature sensor are connect with background control system.

3. shunt diaphram wall as claimed in claim 2 condenses pipe device, which is characterized in that the background control system Including for being more than setting value, the control module that the spare mouth of a river can be used to cement out high-temperature cooling water when coolant water temperature.

4. shunt diaphram wall as claimed in claim 2 condenses pipe device, which is characterized in that the water inlet temperature passes Sensor is set to around the water inlet condenser pipe, and the medium temperature sensor is set to around each condenser pipe.

5. the shunt diaphram wall as described in one of Claims 1 to 4 condenses pipe device, which is characterized in that the condensation The S-shaped sinuous setting of the vertical profile structure of tube assembly.

6. shunt diaphram wall as claimed in claim 5 condenses pipe device, which is characterized in that the condensation tube assembly Cross-sectional structure is monolayer alignment.

7. shunt diaphram wall as claimed in claim 5 condenses pipe device, which is characterized in that each cold in cross section Solidifying pipe is set in the middle part of diaphram wall.

8. the shunt diaphram wall as described in one of Claims 1 to 4 condenses pipe device, which is characterized in that the condensation Tube top portion bending section is made of crooked joint, three-way connection, electromagnetic water valve and condenser pipe.

9. the shunt diaphram wall as described in one of Claims 1 to 4 condenses pipe device, which is characterized in that through high-power Water pump is sent into the water inlet of condenser pipe, while the cooling water after heat exchange being extracted out to the water outlet of condenser pipe by high pressure water extraction machine Mouthful.

10. a kind of construction method of shunt diaphram wall condensation pipe device as described in claim 1, which is characterized in that It the described method comprises the following steps:

It is calculated Step 1: condenser pipe, temperature measuring point are embedded: selecting the condenser pipe of suitable diameter according to engineering practice, determine temperature Spend sensor burial place；Continuous wall thickness selection, thickness under pipe diameter base area is condensed to be more than or equal to 0.6m and select less than 0.8m WithCondenser pipe；Thickness is more than or equal to 0.8m and selects less than 1.0mCondenser pipe；Thickness is more than or equal to 1.0m is selected less than 1.2mCondenser pipe；Thickness is selected greater than 1.2mCondenser pipe；

Step 2: line setting, material are processed: according to the determined numerical value of previous step, the line setting on smooth location, processing Reinforcing bar and condenser pipe；

Step 3: thermometric facility, condenser pipe are installed: production steel reinforcement cage is determining position installation condenser pipe, electromagnetic water valve and temperature Sensor；

Step 4: facility installation review: including condenser pipe leak detection, temperature measuring equipment inspection, the inspection of water dispenser equipment, steel reinforcement cage It checks；

Step 5: concreting, condensing plant starting；

Step 6: temperature dynamic controls: according to temperature sensor feedback data dynamic regulation cooling water rate, controlling coagulation soil temperature Degree；

Step 7: condenser pipe mud jacking.

Technical field

The present invention relates to mass concrete maintenance technologies, condense pipe device more particularly, to a kind of diaphram wall And construction method.

Background technique

In recent years, with deep-foundation pit engineering increase and city underground and the Large scale construction of related municipal works, greatly Type diaphram wall at home using more and more.However, inside concrete can discharge in Mass Concrete Hardening The a large amount of heat of hydration, thus biggish temperature change, resulting temperature stress and shrinkage stress are generated, it easily leads to structure and goes out Existing crack.Therefore, the heat of hydration inside mass concrete how is efficiently controlled, the generation of thermal cracking is avoided to become work The emphasis and difficult point of journey construction.Common treatment measures are mostly to adjust concrete mix in engineering at present, and it is former to adjust concrete The temperature of material and external sprinkling maintenance is carried out to reduce the heat of hydration, but these treatment measures have biggish limitation.Together When existing condensation tube apparatus often length is larger, cooling water passes through longer distance, often cools down before reaching water outlet Coolant-temperature gage has risen to concrete temperature, loses condensation effect, therefore can not efficiently solve the water generated when concreting Change heat problem, thermal stress cracks is still also easy to produce, to make walls concrete intensity that design requirement be not achieved.

Summary of the invention

In order to overcome the shortcomings of that the construction of the prior art is cumbersome, cooling effect is poor, it is continuous that the present invention provides a kind of underground Wall condenses pipe device and construction method, and method is simple, easy construction, construction effect are good, can efficiently solve diaphram wall The bad problem of the aquation heat problem and traditional condensing plant cooling effect that concrete generates, makes concrete strength reach design It is required that guaranteeing wall quality.

To achieve the above object, the present invention provides the following technical solution:

A kind of shunt diaphram wall condensation pipe device, exists including the condenser pipe being embedded in diaphram wall and setting For detecting multiple temperature sensors of concrete temperature by condenser pipe, diaphram wall surface sets multiple spare mouths of a river, passes through Three-way connection is connected with condenser pipe；The two ends of the condensation tube assembly are respectively equipped with inlet and outlet.

Further, the temperature sensor includes water inlet temperature sensor and medium temperature sensor, the water inlet Temperature sensor is used to collect the temperature variation data of water inlet condenser pipe surrounding concrete, and medium temperature sensor is for collecting The temperature variation data of each condenser pipe surrounding concrete, the water inlet temperature sensor and medium temperature sensor and backstage Control system connection.The present invention is by coolant water temperature in temperature sensor detection condenser pipe, after being transmitted to temperature data Bench control system can effectively detect concrete internal temperature variation.

Preferably, it is more than setting value that the background control system, which includes for working as coolant water temperature, can be used the spare mouth of a river will The control module that high-temperature cooling water cements out；The present invention is relative to traditional condensing plant, special feature are as follows: when coolant water temperature is super Setting value is crossed, the spare mouth of a river can be used to cement out high-temperature cooling water, keeps coolant water temperature under certain value, makes the present apparatus Condensation effect maintain preferable state.General setting value is 1.6 times of water inlet water temperature.

The water inlet temperature sensor is set to around the water inlet condenser pipe.

The medium temperature sensor is set to around each condenser pipe.

The S-shaped sinuous setting of vertical profile structure of the condensation tube assembly.

The cross-sectional structure of the condensation tube assembly is monolayer alignment.

In cross section, each condenser pipe is set in the middle part of diaphram wall.

The condenser pipe top curved section is made of crooked joint, three-way connection, electromagnetic water valve and condenser pipe.

The cooling water of condenser pipe is normal-temperature water in the present invention, the water inlet through high powered water pump feeding condenser pipe, while according to Cooling water after heat exchange is extracted out to the water outlet of condenser pipe by high pressure water extraction machine.

The present invention buries condensation tube assembly inside concrete wall, is poured by the water inlet into condensation tube assembly cold Water, and hot water extraction in tube assembly will be condensed from the water outlet of condensation tube assembly, so that realizing reduces the inside concrete heat of hydration.

A kind of construction method of shunt diaphram wall condensation pipe device, comprising the following steps:

It is calculated Step 1: condenser pipe, temperature measuring point are embedded: selecting the condenser pipe of suitable diameter according to engineering practice, really Determine temperature sensor burial place；Continuous wall thickness selection, thickness under pipe diameter base area is condensed to be less than more than or equal to 0.6m 0.8m is selectedCondenser pipe；Thickness is more than or equal to 0.8m and selects less than 1.0mCondenser pipe；Thickness It is selected more than or equal to 1.0m less than 1.2mCondenser pipe；Thickness is selected greater than 1.2mCondenser pipe；

Step 2: line setting, material are processed: according to the determined numerical value of previous step, the line setting on smooth location, Screwing steel bars and condenser pipe；

Step 3: thermometric facility, condenser pipe install: production steel reinforcement cage, determine position installation condenser pipe, electromagnetic water valve and Temperature sensor；

Step 4: facility installation review: including condenser pipe leak detection, temperature measuring equipment inspection, the inspection of water dispenser equipment, steel Muscle cage inspection；

Step 5: concreting, condensing plant starting；

Step 6: temperature dynamic controls: according to temperature sensor feedback data dynamic regulation cooling water rate, controlling coagulation Soil temperature degree；

Step 7: condenser pipe mud jacking.

Beneficial effects of the present invention are mainly manifested in: (1), method and step is simple, design is reasonable and it is simple and convenient to use, real Border Engineering operation is practical；(2), practical temperature control process relies on intelligent temperature sensor Real-time Feedback, can be with by this method Improve cooling efficiency；(3), practical value is high and using effect is good, compares existing cooling means, high-efficient, larger reduction is split Stitch the probability generated；(4), it is provided with the spare mouth of a river compared to traditional condensing plant, high-temperature cooling water can be cemented out, kept cold But water temperature is under certain value, good cooling results；(5), widely applicable, the diaphram wall of various sizes can be effectively applicable to.

Detailed description of the invention

Fig. 1 is method flow block diagram of the invention.

Fig. 2 is condensation pipe device cross section overall schematic

Fig. 3 is condensation pipe device cross section partial schematic diagram.

Fig. 4 is condensation pipe device horizontal profile schematic diagram.

Fig. 5 is condenser pipe top curved connector schematic diagram.

Fig. 6 is condenser pipe bottom bend connector schematic diagram.

Description of symbols

1-condenser pipe；2-water inlets；3-water outlets；4-diaphram walls；5-water inlet temperature sensors；In 6- Between temperature sensor；7-spare the mouths of a river；8-crooked joints；9-short tubes；10-three-way connections；11-electromagnetic water valves；12-is standby Water nozzle adapter tube.

Specific embodiment

To make the objectives, technical solutions, and advantages of the present invention more comprehensible, with reference to the accompanying drawing to the present invention make into The description of one step.

Referring to Fig.1~Fig. 6, a kind of shunt diaphram wall condensation pipe device, including being embedded in diaphram wall Condenser pipe and it is arranged in by condenser pipe for detecting multiple temperature sensors of concrete temperature, diaphram wall surface sets multiple The spare mouth of a river is connected by three-way connection with condenser pipe；The two ends of the condensation tube assembly are respectively equipped with water inlet and water outlet Mouthful.

Further, the temperature sensor includes water inlet temperature sensor and medium temperature sensor, the water inlet Temperature sensor is used to collect the temperature variation data of water inlet condenser pipe surrounding concrete, and medium temperature sensor is for collecting The temperature variation data of each condenser pipe surrounding concrete, the water inlet temperature sensor and medium temperature sensor and backstage Control system connection.The present invention is by coolant water temperature in temperature sensor detection condenser pipe, after being transmitted to temperature data Bench control system can effectively detect concrete internal temperature variation.

Preferably, it is more than setting value that the background control system, which includes for working as coolant water temperature, can be used the spare mouth of a river will The control module that high-temperature cooling water cements out；The present invention is relative to traditional condensing plant, special feature are as follows: when coolant water temperature is super Setting value is crossed, the spare mouth of a river can be used to cement out high-temperature cooling water, keeps coolant water temperature under certain value, makes the present apparatus Condensation effect maintain preferable state.General setting value is 1.6 times of water inlet water temperature.

The water inlet temperature sensor is set to around the water inlet condenser pipe.

The medium temperature sensor is set to around each condenser pipe.

The S-shaped sinuous setting of vertical profile structure of the condensation tube assembly.

The cross-sectional structure of the condensation tube assembly is monolayer alignment.

In cross section, each condenser pipe is set in the middle part of diaphram wall.

The condenser pipe top curved section is made of crooked joint, three-way connection, electromagnetic water valve and condenser pipe.

The cooling water of condenser pipe is normal-temperature water in the present invention, the water inlet through high powered water pump feeding condenser pipe, while according to Cooling water after heat exchange is extracted out to the water outlet of condenser pipe by high pressure water extraction machine.

The present invention buries condensation tube assembly inside concrete wall, is poured by the water inlet into condensation tube assembly cold Water, and hot water extraction in tube assembly will be condensed from the water outlet of condensation tube assembly, so that realizing reduces the inside concrete heat of hydration.

A kind of construction method process flow of diaphram wall condensation pipe device as shown in Figure 1.The condenser pipe, thermometric Device and diaphram wall relative position are as shown in Fig. 2, condenser pipe is embedded in inside diaphram wall, the water inlet temperature sensing Device is set to around the water inlet condenser pipe, and medium temperature sensor is set to around each condenser pipe.It is cross-sectional to condense pipe device Face is as shown in figure 3, two adjacent parallel condensers are connected by crooked joint.Pipe device horizontal profile is condensed as shown in figure 4, condenser pipe In the middle part of diaphram wall.

The process of the construction method is as follows:

With wide 800mm, for the diaphram wall of deep 20m.

1, condenser pipe, temperature measuring point are embedded calculates:

It selectsThe steel pipe of thickness 3mm, each parallel tube spacing be 1500mm, with concrete walls boundary away from for 1000mm.Temperature sensor is embedded in the depths 10000mm, must be greater than 300mm from nearest condenser pipe.Entery and delivery port need to draw mixed Solidifying soil face 1000mm or more, the spare mouth of a river need to draw concrete surface 1000mm or more.

2, line setting, material processing: according to the determined numerical value of previous step, the line setting on smooth location, processing Reinforcing bar and condenser pipe.Because condensation section length is larger, when processing, carrying pay attention to that steel pipe can not be damaged, while noticing that construction personnel pacifies Entirely.

3, thermometric facility, condenser pipe installation:

Steel reinforcement cage is made, is determining position installation condenser pipe and temperature sensor.The following is needed to pay attention to when installation:

1) when sensor is installed, need to be isolated with insulating materials with reinforcing bar contact position sensor, so as to monitor coagulation The internal temperature variation of soil.

2) condenser pipe is installed while banding steel cage, condenser pipe will be staggered with main reinforcement when installation, when local pipeline section is wrong When being provided with difficulty, the position of appropriate moving condensation pipe.Condenser pipe is firm with framework of steel reinforcement or cableway binding, prevents from mixing In solidifying soil casting process, condenser pipe is deformed or is fallen off.

3) sensor and the spare mouth of a river are numbered in a pre-installation.After sensor is installed, it is necessary to carry out testing and debugging. Intermediate sensor is numbered by water (flow) direction, is followed successively by 6-1,6-2,6-3；The spare mouth of a river is numbered by water (flow) direction, successively For 7-1,7-2,7-3.

4, facility installation review: including condenser pipe leak detection, temperature measuring equipment inspection, pump equipment inspection, steel reinforcement cage It checks.Specifically, water sending device is 25GDL2-12 type water pump, it is connected with water inlet；Water plug is that the centrifugation of 4-72C type is drawn water Machine is connected with water outlet.

5, concreting, condensing plant starting:

5.1) prepared by concrete

The concrete for being suitble to this engineering to use is prepared, pays attention to the cement using low hydration heat.

5.2) casting concrete

Tamping is vibrated while casting concrete, pays attention to that condenser pipe and temperature sensor can not be damaged when vibrating.Concrete When pouring, concrete must not direct impact temperature sensor, be damaged to prevent sensor.

5.3) water flowing is cooling

After concrete covers and vibrates, start thermometric after waiting 10h, while the water flowing in condenser pipe can be started. The flow control of cooling water is in 1.2-1.5m³/h.Nearby quarantine measures are arranged in intake-outlet, forbid irrelevant personnel close, operate Personnel take care.

6, temperature controls:

According to temperature sensor feedback data dynamic regulation cooling water rate, concrete temperature is controlled.

6.1) data collection

This project is connected to a computer by being embedded in wall temperature sensor, can accurately detect mass concrete temperature Difference.Water inlet temperature sensor is used to collect the temperature variation data of water inlet condenser pipe surrounding concrete, medium temperature sensing Device is used to collect the temperature variation data of each condenser pipe surrounding concrete.Taking what is shown in fig. 3 as an example, water inlet temperature sensor detects Temperature is numerical value 1；The medium temperature sensing detection temperature that number is 6-1 is numerical value 2.

6.2) data comparison

Numerical value 1 and numerical value 2 compare, and when numerical value 2 is more than 1.6 times of numerical value 1, i.e., when cooling water temperature is excessively high, carry out cold But water is replaced；When numerical value 2 is less than 1.6 times of numerical value 1, i.e., when cooling water temperature is normal, water flowing as usual, by next centre Temperature sensor data and numerical value 1 compare, and so repeat to the last one sensor.

6.3) cooling water is replaced

Cooling water overheats in condenser pipe at this time, to guarantee condensation effect, must extract superheated water out.Continue by taking Fig. 3 as an example, into Water outlet water pump stops operating, and electromagnetic water valve is closed at 7-1, and 7-1 connects a 4-72C type centrifugation water pumper, and 7-2 connects one 25GDL2-12 type water pump forms two condensing circuits.Continue to monitor, answers device when coolant water temperature returns to room temperature at 6-1 Original continues water flowing.Repeated data collection step.

6.4) points for attention

1. temperature control and thermometric record must assure that and be carried out continuously, when temperature dynamic controls must someone monitor at the scene.

2. temperature measurement data conscientiously should be recorded carefully, report without delay as a result, so that the temperature control to concrete is implemented more timely Maintenance measure.

3. atmospheric temperature and the difference of surface temperature of concrete should control within 10 DEG C；The rate of temperature fall of concrete is generally not Preferably greater than 2 DEG C/d.

7, condenser pipe is in the milk:

After concrete strength reaches code requirement, condenser pipe should be filled up with cement slurry immediately, cement slurry compression strength is not It obtains and is less than statistics concrete strength.

In conclusion the solution of the present invention is suitable for diaphram wall temperature crack control.The underground that the present invention uses connects Continuous wall condensation pipe device and construction method, the advantages such as facilitate, work well with using.The present invention with preferred embodiment disclose as On, but not to limit the scope of protection of the present invention.Since the case where diaphram wall generates crack in the construction process, is wide General presence, the present invention can be used in most of diaphram walls, or the present invention is slightly retouched and changed and is applied again.The present invention Protection scope should be subject to claims.