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- Characteristics of Soil Surface Settlement for Double-O-Tube Shield Tunnel 双圆盾构隧道土体地表沉降特性
- soil surface settlement 土体地表沉降
- This creates mulch on the soil surface. 这可以在土地表面形成覆盖物。
- Based on site measurement, analysis is made of the ground loss and surface settlement of the embankment, and the reconsolidation settlement of the disturbed soil. 本文以该工程的实测沉降为依据，分析了顶管施工过程中所产生的地层损失和堤面沉降，分析了受扰动土体的再固结沉降。
- M.S. Caspe. Surface settlement adjacent to braced open cuts. JSMFD,ASCE, 1966. 高俊合;于海学;赵维炳.;土与混凝土接触面特性的大型单剪试验研究及数值模拟
- The distance of the water table below the soil surface must be adjusted. 必须调整土壤表面以下水位的距离。
- The surface settlement range increases with the addition of tunnel buried depth but the settlement decreases. 随着隧道理深的增加，沉降范围也逐渐增大，沉降值却不断减小。
- In our experiment desirable results were obtained by covering the soil surface with plant ash and fine sands. 经试验,用草木灰和细砂覆盖地面的方法,造成干燥的生态条件,对控制发生效果显著;
- Herbs, perennial, acaulescent or shortly caulescent, ascending, rosette but rarely closely appressed to soil surface. 多年生草本，无茎或短茎，上升，莲座丛但很少紧密地贴伏于土表。
- Mulches prevent crusting of the soil surface, thus improving the absorption and movement of water into the soil. 覆盖物可以防治土壤表层板结，使水份容易被土壤吸收。
- Fig. 4. Pycnidiospore survival of Didymella bryoniae placed at soil surface, 5, 15, and 30cm below ground at field. 四、在土壤表面、地表下5、15及30公分土壤深度的瓜类蔓枯病菌柄孢子存活情形。
- Discussed rock mass gravity collapse mechanism caused by under ground and overburden failure and surface settlement disaster, offered some underground mining and surface protective measures. 论述了地下矿层开采引起的岩体重力变形机理和造成的覆岩破坏、地表沉陷等灾害，提出了井下开采和井上防护的技术措施。
- The study of herbicide deposition on soil surface and wheat stubble in different wheat mulch conditions is conducted. 研究了不同兑水量情况下，除草剂在免耕麦茬土壤表面和麦茬上的沉积规律。
- With the simulation results, the range of the ground surface settlement, laws of the strata horizontal displacement and the interaction of double tunnels by shield excavation are analyzed. 通过数值分析得出盾构引起地表沉降的范围、地层水平移动规律以及双线隧道之间的相互影响。
- Indeed the ecology is destructed continuously and the soil surface nutrition is also washed out. 于自然生态环境中，生态演替和气候转变不断在进行，但速度是相对缓慢的。
- Area of existing vegetation con't. seed to the soil surface where they may compete with the new native grass plantings. 现有植被种子不可落在土壤的表面，因为他们将会与新的天然牧草争夺养分。
- This paper using 3D FFM to study the soil displacements, the surface settlements and the influence on the nearly spaced tunnel during shield tunneling. 本文运用三维有限元法对盾构法施工过程中引起的地层位移和地面沉降规律以及对临近已建隧道的影响进行了全面的研究，得到了一些有意义的结论。
- Taproot long-cylindric, deep-rooted with a slender and elongated stem to soil surface. 直根长圆筒状的，根深具一纤细和拉长的茎达土壤表面。
- Twenty 1.25” long spikes do the rest and penetrate the soil surface, aerating it all the while. 20支1.;25寸长的钉子会做剩下的事情，穿透土壤表层，始终在为它通气。
- Perithecia are abundant on those dead twigs falling over on soil surface at any time around the year. 调查北部地区柑橘树冠内枯枝产生孢子角的情形，在5月以前未见形成，5月以后持续至年底皆有孢子角之溢出；
