首页> 外国专利> FOAM GENERATOR FOR AN EARTH PRESSURE BALANCE SHIELD TUNNEL BORING MACHINE AND METHOD FOR CONDITIONING REMOVED SOIL MATERIAL AS A SUPPORTING MEDIUM FOR AN EARTH PRESSURE BALANCE SHIELD

FOAM GENERATOR FOR AN EARTH PRESSURE BALANCE SHIELD TUNNEL BORING MACHINE AND METHOD FOR CONDITIONING REMOVED SOIL MATERIAL AS A SUPPORTING MEDIUM FOR AN EARTH PRESSURE BALANCE SHIELD

机译：土压平衡式盾构隧道掘进机的泡沫发生器和将去除的土壤材料作为土压平衡式盾构的支撑介质的方法

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摘要

The invention relates to a foam generator (14) for an earth-pressure-balance-shield tunnel-boring machine comprising: a mixing chamber, which has a first inlet opening (22) for a foamable liquid and a second inlet opening (23) for a gas and a foam outlet opening (24); a liquid-feeding device connected to the first inlet opening (22); and a gas-feeding device connected to the second inlet opening (23). The mixing chamber contains a tubular flow chamber (28) having the first inlet opening (22) at one end and the foam outlet opening (24) at the other end. A segment of the flow chamber (28) is designed as a gassing section having a gas-permeable porous wall (26) and adjoins a pressure chamber (29) having the second inlet opening (23) in such a way that the gas fed through the second inlet opening (23) under a pressure enters the flow chamber (28) through the porous wall (26) and, in the flow chamber, mixes with the liquid in such a way that foam is formed. The gas-feeding device and the liquid-feeding device are designed in such a way that the pressure of the fed gas can be set in such a way that the pressure of the fed gas is greater than the pressure exerted on the porous wall (26) by the liquid and that a desired ratio of fed gas to fed liquid is achieved. In a method for conditioning removed soil material as a supporting medium for an earth-pressure balance shield, removed soil is fed to an excavation chamber. Depending on the soil quality, foam is provided in that a foam generator having a gassing section of a specified length, of a specified flow cross-section, and of a specified pore size and pore density is provided and the ratio of fed gas to fed liquid is set in such a way that a desired structure and size of the foam bubbles result. The exiting foam is fed to the excavation chamber and mixed with removed soil.

机译：本发明涉及一种用于土压平衡盾构掘进机的泡沫发生器（ 14 ），其包括：混合室，其具有第一入口（ 22 ） >）用于发泡性液体，第二入口（ 23 ）用于气体和泡沫出口（ 24 ）;连接到第一入口（ 22 ）的液体进给装置;气体供给装置连接到第二入口（ 23 ）。混合室包含一个管状流动室（ 28 ），该流动室的一端具有第一入口（ 22 ）和泡沫出口（ 24 ）在另一端。流动室的一部分（ 28 ）被设计为具有透气孔壁（ 26 ）的放气段，并与压力室（ 29 < / B>）具有第二入口（ 23 ），使得在压力下通过第二入口（ 23 ）输送的气体进入流动腔（ 28 ）穿过多孔壁（ 26 ），并在流动腔中与液体混合，形成泡沫。气体进料装置和液体进料装置的设计方式应使得进料气的压力可以这样设定，使得进料气的压力大于施加在多孔壁上的压力（< B> 26 ），从而达到了所需的进料气体与进料液体比例。在用于调节去除的土壤材料作为土压力平衡罩的支撑介质的方法中，将去除的土壤进料到挖掘室中。取决于土壤的质量，提供泡沫是因为提供了一种泡沫发生器，该泡沫发生器具有特定长度，特定流动横截面，特定孔尺寸和孔密度的放气段，以及进料气体与进料的比例以这样的方式设定液体，使得得到期望的泡沫结构和尺寸。排出的泡沫被送入开挖室并与去除的土壤混合。 展开▼

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公开/公告号US2017067339A1

专利类型

公开/公告日2017-03-09

原文格式PDF

申请/专利权人 MC-BAUCHEMIE MÜLLER GMBH & CO. KG;PORR BAU GMBH;
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申请/专利号US201515120230

发明设计人 NORBERT HÖRLEIN;EUGEN KLEEN;
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申请日2015-02-18

分类号E21D9/06;B05B7/00;B01F5/04;E21D9/12;B01F3/04;

国家 US

入库时间 2022-08-21 13:46:58

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机译：土压平衡式盾构掘进机的泡沫发生器和将去除的土壤材料作为土压平衡式盾构的支撑介质的方法

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机译：土压平衡式盾构掘进机的泡沫发生器和将去除的土壤材料作为土压平衡式盾构的支撑介质的方法

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机译：土压平衡式盾构掘进机的泡沫发生器和将去除的土壤材料作为土压平衡式盾构的支撑介质的方法

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